阅读说明：本技术 基于聚合物仿雪磁性颗粒的雪道及其铺设方法 (Snow road based on polymer snow-imitating magnetic particles and paving method thereof ) 是由 汪家道 翁鼎 王子立 陈磊 李兆昕 于 2021-08-13 设计创作，主要内容包括：本发明公开了基于聚合物仿雪磁性颗粒的雪道及其铺设方法,所述雪道包括梳条体阵列层,所述梳条体阵列层包括底座和多个梳条体,任意两个相邻所述梳条体之间形成间隙；仿雪硬磁性颗粒层,所述仿雪硬磁性颗粒层至少部分填充在所述梳条体阵列层的间隙中,所述仿雪硬磁性颗粒层中的仿雪硬磁性颗粒包括硬磁材料和聚合体基体,所述硬磁材料包覆在所述聚合体基体中。本发明的雪道更好地模拟了真实雪道的密实度分布,从而实现真雪赛道的抗冲击和滑行功能,以减少运动员训练伤病情况,保障夏季冰雪运动训练备战工作。(The invention discloses a snow road based on polymer snow-imitating magnetic particles and a paving method thereof, wherein the snow road comprises a comb strip body array layer, the comb strip body array layer comprises a base and a plurality of comb strip bodies, and a gap is formed between any two adjacent comb strip bodies; the snow-imitating hard magnetic particle layer is at least partially filled in gaps of the comb strip array layer, the snow-imitating hard magnetic particles in the snow-imitating hard magnetic particle layer comprise hard magnetic materials and a polymer matrix, and the hard magnetic materials are wrapped in the polymer matrix. The snow track of the invention better simulates the compactness distribution of a real snow track, thereby realizing the functions of impact resistance and sliding of the real snow track, reducing the training injury and disease conditions of athletes and ensuring the training sparring work of ice and snow sports in summer.)

1. A snow road based on polymeric snow-imitating magnetic particles, comprising:

the comb strip body array layer comprises a base and a plurality of comb strip bodies, and a gap is formed between any two adjacent comb strip bodies;

the snow-imitating hard magnetic particle layer is at least partially filled in gaps of the comb strip array layer, the snow-imitating hard magnetic particles in the snow-imitating hard magnetic particle layer comprise hard magnetic materials and a polymer matrix, and the hard magnetic materials are wrapped in the polymer matrix.

2. The snow road based on polymeric snow-imitating magnetic particles as claimed in claim 1, further comprising:

the polymer particle layer or the snow-imitating soft magnetic particle layer is at least partially filled in gaps of the comb strip body array layer, and the snow-imitating hard magnetic particle layer is arranged on the surface of the polymer particle layer or the snow-imitating soft magnetic particle layer, which is far away from the base;

the snow-like soft magnetic particles in the snow-like soft magnetic particle layer include a soft magnetic material and a polymer matrix, the soft magnetic material being encapsulated in the polymer matrix.

3. The snow road based on polymeric snow-imitating magnetic particles as claimed in claim 1, further comprising:

the polymer high-molecular particle layer is at least partially filled in gaps of the sliver array layer, the snow-imitating soft magnetic particle layer is arranged on the surface of the polymer high-molecular particle layer far away from the base, and the snow-imitating hard magnetic particle layer is arranged on the surface of the snow-imitating soft magnetic particle layer far away from the polymer high-molecular particle layer;

the snow-like soft magnetic particles in the snow-like soft magnetic particle layer include a soft magnetic material and a polymer matrix, the soft magnetic material being encapsulated in the polymer matrix.

4. The snow road based on polymeric snow-imitating magnetic particles as claimed in claim 2 or 3, wherein the layer of snow-imitating hard magnetic particles has a thickness of 10-500 mm;

optionally, the thickness of the polymeric particle layer is 10-500 mm;

optionally, the thickness of the snowlike soft magnetic particle layer is 10 to 500 mm.

5. The snow road based on polymeric snow-imitation magnetic particles according to claim 2 or 3, characterized in that the hard magnetic material is selected from at least one of neodymium iron boron, samarium cobalt alloy, iron platinum alloy and titanium cobalt alloy;

optionally, the soft magnetic material is selected from at least one of ferroferric oxide and ferric oxide;

optionally, the polymer matrix is selected from at least one of vulcanized rubber, polyurethane, silicone rubber, and natural rubber;

optionally, the material of the polymer particles is selected from at least one of vulcanized rubber, polyurethane, silicone rubber and natural rubber;

optionally, the snowlike hard magnetic particles have a particle size of 0.1 to 10 mm;

optionally, the hard magnetic material has a particle size of 1-1000 μm;

optionally, the particle size of the snowlike soft magnetic particles is 0.1 to 10 mm;

optionally, the particle size of the soft magnetic material is 1-1000 μm;

optionally, the polymer particles in the polymer particle layer have a particle size of 0.1 to 10 mm;

optionally, the shore hardness of the polymer particles is SHA 10-90.

6. The snow road based on the polymer snow-imitated magnetic particles as claimed in claim 2 or 3, wherein the preparation method of the snow-imitated hard magnetic particles or the snow-imitated soft magnetic particles comprises:

(a) mixing the polymer matrix and the granular hard magnetic material or soft magnetic material, and stirring to obtain a mixture;

(b) heating and stirring said mixture at a predetermined temperature to disperse said hard or soft magnetic material in a molten polymer matrix;

(c) extruding, cooling and shearing the mixture obtained in the step (b) so as to obtain snow-like hard magnetic particle precursors or snow-like soft magnetic particle precursors;

(d) and (3) placing the snow-imitated hard magnetic particle precursor or the snow-imitated soft magnetic particle precursor in a uniform magnetic field with preset intensity for magnetizing for preset time so as to obtain the snow-imitated hard magnetic particles or the snow-imitated soft magnetic particles.

7. The snow road based on polymer snow-imitating magnetic particles as claimed in claim 6, wherein in step (a), the mass ratio of the polymer matrix to the hard magnetic material or soft magnetic material is (1-7: 3;

optionally, in step (b), the preset temperature is 170-;

optionally, in step (d), the preset intensity is 0.5-6T and the preset time is 10-600 s.

8. A method of laying a snow road based on polymeric snow-imitating magnetic particles as claimed in any one of claims 1 to 7, comprising:

(1) providing a sliver array layer;

(2) snow-imitating hard magnetic particles are at least partially filled in gaps of the comb strip body array layer so as to form a snow-imitating hard magnetic particle layer.

9. The laying method according to claim 8, further comprising, before laying the layer of snow-imitating hard magnetic particles:

(3) at least partially filling polymer particles or snow-imitating soft magnetic particles in gaps of the sliver array layer so as to form a polymer particle layer or a snow-imitating soft magnetic particle layer, and then paving snow-imitating hard magnetic particles on the surface of the polymer particle layer or the snow-imitating soft magnetic particle layer far away from the base so as to form a snow-imitating hard magnetic particle layer.

10. The laying method according to claim 8, further comprising, before laying the layer of snow-imitating hard magnetic particles:

(4) at least partially filling polymer high-molecular particles in gaps of the comb strip array layer so as to form a polymer high-molecular particle layer, paving snow-imitating soft magnetic particles on the surface of the polymer high-molecular particle layer, which is far away from the base, so as to form a snow-imitating soft magnetic particle layer, and paving snow-imitating hard magnetic particles on the surface of the snow-imitating soft magnetic particle layer, which is far away from the polymer high-molecular particle layer, so as to form a snow-imitating hard magnetic particle layer.

Technical Field

The invention relates to the technical field of composite material preparation, in particular to a snow road based on polymer snow-imitating magnetic particles and a paving method thereof.

Background

The composite material is a new material which is formed by combining and optimizing materials with different properties by people by using an advanced material preparation technology. The composite material comprises at least two materials with different chemical and/or physical properties, which are combined in a suitable form, proportion and distribution, and obvious interfaces exist among the components. Meanwhile, the composite material not only can keep the material performance advantages of each component, but also can obtain the comprehensive performance which can not be achieved by a single-component material through the complementation and the correlation of the performances of each component, so that the composite material is widely applied to the fields of national defense industry, aerospace, precision machinery, deep submergence vehicles, robot structural parts, high-grade sports goods and the like.

The traditional snow sports project can only be carried out in the low-temperature environment of the snow season, and is seriously influenced by the season and the field. Although dry snow materials such as false grass and polymer solid surfaces exist at present, the dry snow materials cannot reproduce the characteristics such as snow surface accumulation and the like, and the reality and the effect of summer training of athletes are seriously influenced.

In conclusion, how to provide a snow track that better simulates real snow in nature, reduce injury of athletes and improve training efficiency is a problem to be solved urgently by those skilled in the art at present.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a snow road based on polymer snow-imitating magnetic particles and a paving method thereof. The snow track of the invention better simulates the compactness distribution of a real snow track, thereby realizing the functions of impact resistance and sliding of the real snow track, reducing the training injury and disease conditions of athletes and ensuring the training sparring work of ice and snow sports in summer.

In one aspect of the invention, the invention provides a snow track based on polymeric snow-imitating magnetic particles. According to an embodiment of the invention, the snow road comprises:

the comb strip body array layer comprises a base and a plurality of comb strip bodies, and a gap is formed between any two adjacent comb strip bodies;

the snow-imitating hard magnetic particle layer is at least partially filled in gaps of the comb strip array layer, the snow-imitating hard magnetic particles in the snow-imitating hard magnetic particle layer comprise hard magnetic materials and a polymer matrix, and the hard magnetic materials are wrapped in the polymer matrix.

According to the snow track based on the polymer snow-imitating magnetic particles, the snow track with a multilayer structure is designed according to the characteristics of the real snow track, so that the skiing experience of the real snow track can be better simulated, wherein the plurality of comb strip bodies of the comb strip body array layer can support the particles on the upper layer, and the integral rigidity and the shock resistance of the snow track are enhanced; the snow-imitating hard magnetic particles in the snow-imitating hard magnetic particle layer are utilized to simulate the accumulation agglomeration characteristic and the buffering energy absorption effect of natural snow, particularly, the main bodies of the snow-imitating hard magnetic particles are made of polymer materials and have certain elasticity, so that the buffering energy absorption effect can be realized, meanwhile, the snow-imitating hard magnetic particles also have certain magnetism and agglomeration capacity, in addition, the magnetism and the agglomeration capacity of the hard magnetic particles after magnetization are relatively strong, and the particles in the layer can better simulate the real snow track sliding effect and the deformation capacity after impact of a skier. Therefore, the snow track better simulates the compactness distribution of a real snow track, thereby realizing the functions of impact resistance and sliding of the real snow track, reducing the training injury condition of athletes and ensuring the training sparring work of the summer ice and snow sports.

In addition, the snow road based on the polymer snow-imitating magnetic particles according to the above embodiment of the invention may also have the following additional technical features:

in some embodiments of the invention, the snow road further comprises: the polymer particle layer or the snow-imitating soft magnetic particle layer is at least partially filled in gaps of the comb strip body array layer, and the snow-imitating hard magnetic particle layer is arranged on the surface of the polymer particle layer or the snow-imitating soft magnetic particle layer, which is far away from the base; the snow-like soft magnetic particles in the snow-like soft magnetic particle layer include a soft magnetic material and a polymer matrix, the soft magnetic material being encapsulated in the polymer matrix.

In some embodiments of the invention, the snow road further comprises: the polymer high-molecular particle layer is at least partially filled in gaps of the sliver array layer, the snow-imitating soft magnetic particle layer is arranged on the surface of the polymer high-molecular particle layer far away from the base, and the snow-imitating hard magnetic particle layer is arranged on the surface of the snow-imitating soft magnetic particle layer far away from the polymer high-molecular particle layer; the snow-like soft magnetic particles in the snow-like soft magnetic particle layer include a soft magnetic material and a polymer matrix, the soft magnetic material being encapsulated in the polymer matrix.

In some embodiments of the invention, the layer of snow-imitating hard magnetic particles has a thickness of 10-500 mm.

In some embodiments of the invention, the layer of polymeric particles has a thickness of 10 to 500 mm.

In some embodiments of the invention, the thickness of the snowlike soft magnetic particle layer is 10-500 mm.

In some embodiments of the invention, the hard magnetic material is selected from at least one of neodymium iron boron, samarium cobalt alloy, iron platinum alloy, and titanium cobalt alloy.

In some embodiments of the invention, the soft magnetic material is selected from at least one of ferrosoferric oxide and ferric oxide.

In some embodiments of the invention, the polymer matrix is selected from at least one of vulcanized rubber, polyurethane, silicone rubber, and natural rubber.

In some embodiments of the present invention, the polymeric particles are at least one material selected from the group consisting of vulcanized rubber, polyurethane, silicone rubber, and natural rubber.

In some embodiments of the invention, the snowlike hard magnetic particles have a particle size of 0.1 to 10 mm.

In some embodiments of the invention, the hard magnetic material has a particle size of 1-1000 μm.

In some embodiments of the invention, the particle size of the snowlike soft magnetic particles is 0.1 to 10 mm.

In some embodiments of the invention, the soft magnetic material has a particle size of 1-1000 μm.

In some embodiments of the present invention, the polymer particles in the polymer particle layer have a particle size of 0.1 to 10 mm.

In some embodiments of the present invention, the shore hardness of the polymer particles is SHA 10-90.

In some embodiments of the present invention, the method of preparing the snow-like hard magnetic particles or the snow-like soft magnetic particles comprises:

(a) mixing the polymer matrix and the granular hard magnetic material or soft magnetic material, and stirring to obtain a mixture;

(b) heating and stirring said mixture at a predetermined temperature to disperse said hard or soft magnetic material in a molten polymer matrix;

(c) extruding, cooling and shearing the mixture obtained in the step (b) so as to obtain snow-like hard magnetic particle precursors or snow-like soft magnetic particle precursors;

(d) and (3) placing the snow-imitated hard magnetic particle precursor or the snow-imitated soft magnetic particle precursor in a uniform magnetic field with preset intensity for magnetizing for preset time so as to obtain the snow-imitated hard magnetic particles or the snow-imitated soft magnetic particles.

In some embodiments of the invention, in step (a), the mass ratio of the polymer matrix and the hard or soft magnetic material is (1-7): 3.

In some embodiments of the present invention, in step (b), the preset temperature is 170-.

In some embodiments of the present invention, in the step (d), the preset intensity is 0.5 to 6T, and the preset time is 10 to 600 s.

In another aspect of the present invention, the present invention provides a method for laying a snow road based on polymer snow-imitating magnetic particles as described in the above embodiments, including:

(1) providing a sliver array layer;

(2) snow-imitating hard magnetic particles are at least partially filled in gaps of the comb strip body array layer so as to form a snow-imitating hard magnetic particle layer.

According to the paving method of the snow road based on the polymer snow-imitating magnetic particles, the snow road with the multilayer structure is designed according to the characteristics of the real snow road, so that the skiing experience of the real snow road can be better simulated, wherein the plurality of comb strip bodies of the comb strip body array layer can support particles on the upper layer, and the integral rigidity and the shock resistance of the snow road are enhanced; the snow-imitating hard magnetic particles in the snow-imitating hard magnetic particle layer are utilized to simulate the accumulation agglomeration characteristic and the buffering energy absorption effect of natural snow, particularly, the main bodies of the snow-imitating hard magnetic particles are made of polymer materials and have certain elasticity, so that the buffering energy absorption effect can be realized, meanwhile, the snow-imitating hard magnetic particles also have certain magnetism and agglomeration capacity, in addition, the magnetism and the agglomeration capacity of the hard magnetic particles after magnetization are relatively strong, and the particles in the layer can better simulate the real snow track sliding effect and the deformation capacity after impact of a skier. Therefore, the snow track better simulates the compactness distribution of a real snow track, thereby realizing the functions of impact resistance and sliding of the real snow track, reducing the training injury condition of athletes and ensuring the training sparring work of the summer ice and snow sports.

In addition, the paving method of the snow road based on the polymer snow-imitating magnetic particles according to the embodiment of the invention can also have the following additional technical characteristics:

in some embodiments of the invention, before laying the layer of snow-imitating hard magnetic particles, further comprises: (3) at least partially filling polymer particles or snow-imitating soft magnetic particles in gaps of the sliver array layer so as to form a polymer particle layer or a snow-imitating soft magnetic particle layer, and then paving snow-imitating hard magnetic particles on the surface of the polymer particle layer or the snow-imitating soft magnetic particle layer far away from the base so as to form a snow-imitating hard magnetic particle layer.

In some embodiments of the invention, before laying the layer of snow-imitating hard magnetic particles, further comprises: (4) at least partially filling polymer particles in gaps of the comb strip array layer so as to form a polymer particle layer, paving snow-imitating soft magnetic particles on the surface of the polymer particle layer, which is far away from the base, so as to form a snow-imitating soft magnetic particle layer, and paving snow-imitating hard magnetic particles on the surface of the snow-imitating soft magnetic particle layer, which is far away from the polymer particle layer, so as to form a snow-imitating hard magnetic particle layer.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a snow road based on polymer snow-imitating magnetic particles according to one embodiment of the invention.

Fig. 2 is a schematic structural diagram of a snow road based on polymer snow-imitating magnetic particles according to still another embodiment of the invention.

Fig. 3 is a schematic structural diagram of a snow road based on polymer snow-imitating magnetic particles according to another embodiment of the invention.

FIG. 4 is a diagram of a simulation of a snow road based on polymeric snow-emulating magnetic particles in accordance with one embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a comb strip array layer according to an embodiment of the present invention.

Fig. 6 is a top view of a sliver array layer of one embodiment of the invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In one aspect of the invention, the invention proposes a snow-track based on polymeric snow-imitating magnetic particles, with reference to fig. 1 and 5 to 6, said snow-track comprising: the comb strip array layer 100 comprises a base 101 and a plurality of comb strip bodies 102, wherein a gap is formed between any two adjacent comb strip bodies 102; the snow-imitating hard magnetic particle layer 400 is at least partially filled in the gaps of the comb strip array layer 100, and the snow-imitating hard magnetic particles in the snow-imitating hard magnetic particle layer 400 comprise hard magnetic materials and a polymer matrix, wherein the hard magnetic materials are wrapped in the polymer matrix.

According to an embodiment of the invention, with reference to fig. 2, the snow road further comprises: a polymer particle layer 200 or a snow-like soft magnetic particle layer 300, wherein the polymer particle layer 200 or the snow-like soft magnetic particle layer 300 is at least partially filled in the gaps of the sliver array layer 100, and the snow-like hard magnetic particle layer 400 is arranged on the surface of the polymer particle layer 200 or the snow-like soft magnetic particle layer 300 far away from the base 101; the snow-like soft magnetic particles in the snow-like soft magnetic particle layer 300 include a soft magnetic material and a polymer matrix in which the soft magnetic material is encapsulated. Therefore, the polymer particle layers 200 filled in the gaps of the sliver array layer 100 have certain elasticity, and can realize the functions of buffering and energy absorption as the bottom layers of the snow-imitated hard magnetic particle layers 400 and/or the snow-imitated soft magnetic particle layers 300, and meanwhile, the polymer particle layers 200 have no magnetism and can simulate a low-compactness real snow layer. The main bodies of the snow-like soft magnetic particles filled in the gaps of the sliver array layer 100 are made of polymer materials, have certain elasticity, can realize the buffering and energy-absorbing effects, and have relatively weak magnetism and agglomeration capacity after being magnetized, so that the snow-like soft magnetic particles are used for simulating real snow layers with different compactness.

According to a further embodiment of the invention, with reference to figures 3 and 4, the snow road further comprises: a polymer particle layer 200 and a snow-like soft magnetic particle layer 300, wherein the polymer particle layer 200 is at least partially filled in the gaps of the sliver array layer 100, the snow-like soft magnetic particle layer 300 is arranged on the surface of the polymer particle layer 200 far away from the base, and the snow-like hard magnetic particle layer 400 is arranged on the surface of the snow-like soft magnetic particle layer 300 far away from the polymer particle layer 200; the snow-like soft magnetic particles in the snow-like soft magnetic particle layer 300 include a soft magnetic material and a polymer matrix in which the soft magnetic material is encapsulated. Therefore, the main body of the snow-imitated soft magnetic particles made of the soft magnetic material is a polymer material, has certain elasticity, can realize the buffering and energy-absorbing functions, and simultaneously has relatively weak magnetism and agglomeration capacity after magnetization, so that the snow-imitated soft magnetic particles are used for simulating real snow layers with different compactness; the main body of the snow-imitated hard magnetic particles prepared from the hard magnetic material is also a polymer material, has certain elasticity, can realize the buffering and energy absorption effects, and simultaneously has relatively strong magnetism and agglomeration capacity after the hard magnetic particles are magnetized, the layer of particles can better simulate the real snow track sliding effect and the deformation capacity after being impacted by a skier, and meanwhile, the layer of particles has strong magnetism and can attract the snow-imitated soft magnetic particles on the third layer, so that the supporting effect and the impact resistance of the snow-imitated soft magnetic particle layer 300 can be enhanced.

According to the embodiment of the present invention, the specific structure of the comb strip array is not particularly limited, the heights of the plurality of comb strip bodies 102 may be different to form a staggered comb strip array, and the heights of the plurality of comb strip bodies 102 may be the same to form a comb strip array with the same height. The specific value of the height of the comb-like bodies 102 is not particularly limited as long as it does not exceed the upper surface of the snowlike hard magnetic particle layer 400. The distance between two adjacent comb-strip bodies 102 is not particularly limited, and may be set by those skilled in the art.

According to an embodiment of the present invention, a material forming the above-mentioned comb strip array layer 100 is not particularly limited, and may be arbitrarily selected by those skilled in the art according to actual needs, and as a specific example, the material forming the above-mentioned comb strip array layer 100 is selected from at least one of natural materials (such as wood, stone, etc.), polymer materials, and metal materials.

According to a specific embodiment of the present invention, the thickness of the polymer particle layer 200 is 10-500mm, so that the thickness of the polymer particle layer 200 is within the above range, which can achieve a good buffering and energy absorption effect, if the thickness of the polymer particle layer 200 is too small, the snow-track buffering and energy absorption effect is poor, and if the thickness of the polymer particle layer 200 is too large, the polymer particle layer 200 is too loose, which makes it difficult for a player to support sliding on the snow track, and the impact resistance is poor.

According to still another embodiment of the present invention, the polymer particles in the polymer particle layer 200 have a particle size of 0.1 to 10 mm.

According to another specific embodiment of the present invention, the shore hardness of the polymer particles is SHA10-90, so that the polymer particles have shore hardness within the above range, and have elasticity and rigidity, the elasticity can play a role in deformation and energy absorption, and meanwhile, the polymer particles have a certain rigidity to support the snow road, thereby enhancing the impact resistance.

According to the embodiment of the present invention, the specific kind of the material of the polymer particles is not particularly limited, and may be arbitrarily selected by those skilled in the art according to actual needs, and as a specific example, the material of the polymer particles is at least one selected from vulcanized rubber, polyurethane, silicone rubber, and natural rubber.

According to another embodiment of the present invention, the method for preparing the polymer particles comprises:

heating the polymer material substrate at a preset temperature (170-; and extruding and cooling the polymer high molecular material in a molten state, and shearing in the cooling process to prepare the required polymer high molecular particles.

According to another specific embodiment of the present invention, the thickness of the snow-imitating hard magnetic particle layer 400 is 10-500mm, so that the thickness of the snow-imitating hard magnetic particle layer 400 is within the above range, and the snow accumulation effect and the agglomeration capability of the real snow road can be better simulated, if the thickness of the snow-imitating hard magnetic particle layer 400 is too small, the snow-imitating hard magnetic particles are too few, the agglomeration capability is weak, and the real snow road is difficult to simulate, and if the thickness of the snow-imitating hard magnetic particle layer 400 is too large, the height of the real snow road is difficult to simulate, and the training experience and the training effect of the athlete are affected.

According to still another embodiment of the present invention, the thickness of the snow-like soft magnetic particle layer 300 is 10-500mm, and thus, the thickness of the snow-like soft magnetic particle layer 300 is within the above range, so that the density of the real snow road can be well simulated and a certain supporting function can be achieved, if the thickness of the snow-like soft magnetic particle layer 300 is too small, it is difficult to simulate the density distribution of the real snow road, and if the thickness of the snow-like soft magnetic particle layer 300 is too large, it is difficult to simulate the height of the real snow road, which affects the training experience and training effect of the athlete.

According to the embodiment of the present invention, the specific kind of the hard magnetic material is not particularly limited, and may be arbitrarily selected by those skilled in the art according to actual needs, and as a specific example, the hard magnetic material is selected from neodymium iron boron (NdFeB), samarium cobalt (Co) alloy (Co)₅Sm), an iron platinum alloy (FePt) and a titanium cobalt alloy (TiCo).

According to the embodiment of the present invention, the specific kind of the soft magnetic material is not particularly limited, and may be optionally selected by those skilled in the art according to actual needs, and as a specific example, the soft magnetic material is selected from triiron tetroxide (Fe)₃O₄) And ferric oxide (Fe)₂O₃) At least one of (a).

According to an embodiment of the present invention, a specific kind of the polymer matrix is not particularly limited, and may be arbitrarily selected by those skilled in the art according to actual needs, and as a specific example, the polymer matrix is selected from at least one of vulcanized rubber, polyurethane, silicone rubber, and natural rubber.

According to still another embodiment of the present invention, the size of the snow-imitating hard magnetic particles is 0.1 to 10mm, whereby the size of the snow-imitating hard magnetic particles within the above range can increase the contact area between the particles, so that more particles can attract each other, enhancing the agglomeration ability of the snow-imitating hard magnetic particles, and better simulating the agglomeration property of snow in nature.

According to still another embodiment of the present invention, the particle size of the snow-like soft magnetic particles is 0.1 to 10mm, whereby the particle size of the snow-like soft magnetic particles within the above range can increase the contact area between the particles, enabling more particles to attract each other, enhancing the agglomerating ability of the snow-like soft magnetic particles, and better simulating the agglomerating property of snow in nature.

In an embodiment of the present invention, the snow-imitating hard magnetic particles comprise a polymer matrix and granular hard magnetic material, and the hard magnetic material is wrapped in the polymer matrix. The polymer matrix is used as a material main body, has certain hardness and elasticity, deforms under the action of external force, and has the functions of buffering and energy absorption; the hard magnetic material is uniformly dispersed in the snow-like hard magnetic particles and used as a magnetic field component to generate a magnetic field. Therefore, the snow-imitating hard magnetic particles are used for simulating the accumulation agglomeration characteristic and the buffering energy absorption effect of natural snow, and particularly, the main bodies of the snow-imitating hard magnetic particles are made of polymer materials and have certain elasticity, so that the buffering energy absorption effect can be realized, and meanwhile, the snow-imitating hard magnetic particles also have certain magnetism and agglomeration capacity and are used for simulating real snow layers with different compactness.

In an embodiment of the invention, the snowlike soft magnetic particles comprise a polymer matrix and a granular soft magnetic material encased in the polymer matrix. The polymer matrix is used as a material main body, has certain hardness and elasticity, deforms under the action of external force, and has the functions of buffering and energy absorption; the soft magnetic material is uniformly dispersed in the snow-like soft magnetic particles and serves as a magnetic field component for generating a magnetic field. Therefore, the snow-imitated soft magnetic particles are used for simulating the accumulation agglomeration characteristic and the buffering energy absorption effect of natural snow, particularly, the main bodies of the snow-imitated soft magnetic particles are made of polymer materials and have certain elasticity, so that the buffering energy absorption effect can be realized, and meanwhile, the snow-imitated soft magnetic particles also have certain magnetism and agglomeration capability and are used for simulating real snow layers with different compactness.

According to another embodiment of the present invention, the hard magnetic material has a particle size of 1-1000 μm, and thus, the particle size of the hard magnetic material is within the above range, so that the hard magnetic material can be uniformly dispersed in the polymer particle matrix with millimeter-sized particles, thereby ensuring uniform magnetic field distribution after the snow-like hard magnetic particles are magnetized, and enhancing the agglomeration capability thereof.

According to still another embodiment of the present invention, the soft magnetic material has a particle size of 1 to 1000 μm, and thus, the particle size of the soft magnetic material is within the above range, so that the soft magnetic material can be uniformly dispersed in a matrix of polymer particles having a millimeter size, and the uniform distribution of magnetic field after the snow-like soft magnetic particles are magnetized is ensured, thereby enhancing the agglomerating ability thereof.

According to yet another specific embodiment of the present invention, the method for preparing the snow-like hard magnetic particles or the snow-like soft magnetic particles comprises:

(a) mixing the polymer matrix and the granular hard magnetic material or soft magnetic material, and stirring to obtain a mixture;

(b) heating and stirring said mixture at a predetermined temperature to disperse said hard or soft magnetic material in a molten polymer matrix;

(c) extruding, cooling and shearing the mixture obtained in the step (b) so as to obtain snow-like hard magnetic particle precursors or snow-like soft magnetic particle precursors;

(d) and (3) placing the snow-imitated hard magnetic particle precursor or the snow-imitated soft magnetic particle precursor in a uniform magnetic field with preset intensity for magnetizing for preset time so as to obtain the snow-imitated hard magnetic particles or the snow-imitated soft magnetic particles.

According to another embodiment of the invention, in the step (a), the mass ratio of the polymer matrix to the hard magnetic material or the soft magnetic material is (1-7):3, so that the mass ratio of the polymer matrix to the magnetic material is in the above range, the elasticity of the polymer matrix can be maintained, a certain buffering and energy-absorbing effect can be achieved, the polymer matrix and the magnetic material can have proper magnetism, the particles can be mutually attracted into a mass, if the content of the magnetic material is too low, the magnetism is weaker, the mass is difficult to attract, the mass forming property of snow in the nature can not be simulated, and the buffering and energy-absorbing effect is influenced, and the kinetic energy is difficult to absorb; if magnetic material's content is too high, can cause the imitative snow magnetic particle hardness of making great, be difficult to warp under the exogenic action, buffering energy-absorbing effect is poor, and magnetism is too strong simultaneously, and the interparticle attraction ability reinforce can make the excessive sclerosis of snow way surface, can rebound after receiving the impact, is difficult to simulate real snow and says the condition to increase sportsman's injured risk.

According to another embodiment of the present invention, in the step (b), the preset temperature is 170-.

According to another embodiment of the present invention, in the step (d), the preset intensity is 0.5 to 6T, and the preset time is 10 to 600s, so that the magnetic material can reach the saturation magnetization under the preset magnetic field, and can have a higher residual magnetic induction after being taken out of the magnetic field.

According to the snow road based on the polymer snow-imitating magnetic particles, the snow road with the multilayer structure is designed according to the characteristics of the real snow road so as to better simulate the skiing experience of the real snow road, wherein the plurality of comb strip bodies of the comb strip body array layer 100 can support the particles on the upper layer, so that the integral rigidity and the shock resistance of the snow road are enhanced; the polymer particle layer 200 filled in the gaps of the sliver array layer 100 has certain elasticity, can realize the functions of buffering and cushioning and absorbing energy as the bottom layer of the snow-imitated magnetic particle layer, and meanwhile, the polymer particle layer 200 has no magnetism and can simulate a real snow layer with low compactness; the snow-imitation magnetic particles in the snow-imitation magnetic particle layer are utilized to simulate the accumulation agglomeration characteristic and the buffering energy absorption effect of natural snow, particularly, the main body of the snow-imitation magnetic particles is made of a polymer material and has certain elasticity, so that the buffering energy absorption effect can be realized, and meanwhile, the snow-imitation magnetic particles also have certain magnetism and agglomeration capacity and are used for simulating real snow layers with different compactness. Therefore, the snow track better simulates the compactness distribution of a real snow track, thereby realizing the functions of impact resistance and sliding of the real snow track, reducing the training injury condition of athletes and ensuring the training sparring work of the summer ice and snow sports.

In another aspect of the present invention, the present invention provides a method for laying a snow road based on polymer snow-imitating magnetic particles as described in the above embodiments, including:

s100: providing an array layer of sliver bodies

In this step, the provided comb strip array layer 100 includes a base 101 and a plurality of comb strip bodies, a gap is formed between any two adjacent comb strip bodies, and the plurality of comb strip bodies can support upper layer particles, so that the overall rigidity and the shock resistance of the snow road are enhanced. The specific structure of the comb strip body array is not particularly limited, the heights of the plurality of comb strip bodies may be different to form a staggered comb strip body array, and the heights of the plurality of comb strip bodies may be the same to form a comb strip body array with the same height. The specific value of the height of the comb-like body is not particularly limited as long as it does not exceed the upper surface of the snow-like magnetic particle layer. The distance between two adjacent comb-strip bodies is not particularly limited, and can be set by those skilled in the art at will.

S200: at least partially filling the snow-imitating hard magnetic particles in the gaps of the comb strip body array layer so as to form a snow-imitating hard magnetic particle layer

In this step, the snow-like hard magnetic particles are at least partially filled in the gaps of the sliver array layer 100 to form a snow-like hard magnetic particle layer 400, and the snow-like hard magnetic particles are used to simulate the accumulation agglomeration characteristic and the buffering energy absorption effect of natural snow, specifically, the main body of the snow-like hard magnetic particles is a polymer material and has certain elasticity, so that the buffering energy absorption effect can be realized, meanwhile, the snow-like hard magnetic particles also have certain magnetism and agglomeration capability, and in addition, the magnetism and agglomeration capability of the hard magnetic particles after magnetization are relatively strong, and the layer of particles can better simulate the real snow track sliding effect and the deformation capability after being impacted by a skier.

Further, before laying the snowlike hard magnetic particle layer, the method also comprises the following steps:

s300: filling polymer particles or snow-imitating soft magnetic particles at least partially in gaps of the sliver array layer to form a polymer particle layer or a snow-imitating soft magnetic particle layer, and then paving snow-imitating hard magnetic particles on the surface of the polymer particle layer or the snow-imitating soft magnetic particle layer far away from the base to form a snow-imitating hard magnetic particle layer

In this step, polymer particles or snow-like soft magnetic particles are at least partially filled in the gaps of the sliver array layer 100 to form a polymer particle layer 200 or a snow-like soft magnetic particle layer 300, and then snow-like hard magnetic particles are laid on the surface of the polymer particle layer 200 or the snow-like soft magnetic particle layer 300 away from the base to form a snow-like hard magnetic particle layer 400. Therefore, the polymer particle layers 200 filled in the gaps of the sliver array layer 100 have certain elasticity, and can realize the functions of buffering and energy absorption as the bottom layers of the snow-imitated hard magnetic particle layers 400 and/or the snow-imitated soft magnetic particle layers 300, and meanwhile, the polymer particle layers 200 have no magnetism and can simulate a low-compactness real snow layer. The main bodies of the snow-like soft magnetic particles filled in the gaps of the sliver array layer 100 are made of polymer materials, have certain elasticity, can realize the buffering and energy-absorbing effects, and have relatively weak magnetism and agglomeration capacity after being magnetized, so that the snow-like soft magnetic particles are used for simulating real snow layers with different compactness.

Further, before laying the snowlike hard magnetic particle layer, the method also comprises the following steps:

s400: filling polymer particles at least partially in gaps of the comb strip array layer to form a polymer particle layer, laying snow-imitating soft magnetic particles on the surface of the polymer particle layer away from the base to form a snow-imitating soft magnetic particle layer, and laying snow-imitating hard magnetic particles on the surface of the snow-imitating soft magnetic particle layer away from the polymer particle layer to form a snow-imitating hard magnetic particle layer

In this step, polymer particles are at least partially filled in the gaps of the sliver array layer 100 to form a polymer particle layer 200, snow-like soft magnetic particles are laid on the surface of the polymer particle layer 200 away from the base to form a snow-like soft magnetic particle layer 300, and snow-like hard magnetic particles are laid on the surface of the snow-like soft magnetic particle layer 300 away from the polymer particle layer 200 to form a snow-like hard magnetic particle layer 400. Therefore, the main body of the snow-imitated soft magnetic particles made of the soft magnetic material is a polymer material, has certain elasticity, can realize the buffering and energy-absorbing functions, and simultaneously has relatively weak magnetism and agglomeration capacity after magnetization, so that the snow-imitated soft magnetic particles are used for simulating real snow layers with different compactness; the main body of the snow-imitated hard magnetic particles prepared from the hard magnetic material is also a polymer material, has certain elasticity, can realize the buffering and energy absorption effects, and simultaneously has relatively strong magnetism and agglomeration capacity after the hard magnetic particles are magnetized, the layer of particles can better simulate the real snow track sliding effect and the deformation capacity after being impacted by a skier, and meanwhile, the layer of particles has strong magnetism and can attract the snow-imitated soft magnetic particles on the third layer, so that the supporting effect and the impact resistance of the snow-imitated soft magnetic particle layer 300 can be enhanced.

According to the paving method of the snow road based on the polymer snow-imitated magnetic particles, the snow road with the multilayer structure is designed according to the characteristics of the real snow road so as to better simulate the skiing experience of the real snow road, wherein the plurality of comb strip bodies of the comb strip body array layer 100 can support upper-layer particles, so that the overall rigidity and the shock resistance of the snow road are enhanced; the polymer particle layer 200 filled in the gaps of the sliver array layer 100 has certain elasticity, can realize the functions of buffering and cushioning and absorbing energy as the bottom layer of the snow-imitated magnetic particle layer, and meanwhile, the polymer particle layer 200 has no magnetism and can simulate a real snow layer with low compactness; the snow-imitation magnetic particles in the snow-imitation magnetic particle layer are utilized to simulate the accumulation agglomeration characteristic and the buffering energy absorption effect of natural snow, particularly, the main body of the snow-imitation magnetic particles is made of a polymer material and has certain elasticity, so that the buffering energy absorption effect can be realized, and meanwhile, the snow-imitation magnetic particles also have certain magnetism and agglomeration capacity and are used for simulating real snow layers with different compactness. Therefore, the snow track better simulates the compactness distribution of a real snow track, thereby realizing the functions of impact resistance and sliding of the real snow track, reducing the training injury condition of athletes and ensuring the training sparring work of the summer ice and snow sports.

The following embodiments of the present invention are described in detail, and it should be noted that the following embodiments are exemplary only, and are not to be construed as limiting the present invention. In addition, all materials used in the following examples are either commercially available or can be synthesized according to methods herein or known, and are readily available to those skilled in the art for reaction conditions not listed, if not explicitly stated.

Example 1

The embodiment provides a snow road paving method based on polymer snow-imitating magnetic particles, which comprises the following steps:

1) providing a sliver body array layer, wherein the sliver body array layer comprises a base and a plurality of sliver bodies, the sliver body array is provided with sliver bodies with two heights, namely 8cm and 10cm high sliver bodies respectively, the distance between the two height sliver bodies is 15mm, and the sliver bodies are alternately arranged to form a sliver body array which is used as a first layer for training the snow passage in summer;

2) filling polymer particles (with the particle size of 5mm) in gaps of the sliver array layer so as to form a polymer particle layer (with the laying height of 40mm) as a second layer for training the snow road in summer;

3) paving snow-imitated soft magnetic particles (with the particle size of 5mm) on the surface of the polymer high-molecular particle layer far away from the base so as to form a snow-imitated soft magnetic particle layer (with the paving height of 40mm) as a third layer of the summer training snow channel;

4) snow-imitating hard magnetic particles (with the particle size of 5mm) are paved on the surface of the snow-imitating soft magnetic particle layer far away from the polymer high molecular particle layer so as to form a snow-imitating hard magnetic particle layer (with the paving height of 120mm) as a fourth layer of the summer training snow road.

The preparation method of the polymer high-molecular particles comprises the following steps:

the polymer high molecular particles are made of thermoplastic vulcanized rubber, and the Shore hardness of the thermoplastic vulcanized rubber is SHA 45; heating at 180 ℃ to make the thermoplastic vulcanized rubber enter a molten state, and fully stirring; and extruding and cooling the molten thermoplastic vulcanized rubber, and shearing in the cooling process to obtain polymer high-molecular particles with the particle size of 5 mm.

The preparation method of the snow-like hard magnetic particles comprises the following steps:

the hard magnetic material of the snow-imitating hard magnetic particles is neodymium iron boron, and the particle size is 100 mu m; the polymer matrix is thermoplastic vulcanized rubber, and the Shore hardness of the polymer matrix material is SHA 45; mixing and stirring neodymium iron boron and thermoplastic vulcanized rubber in a mass ratio of 3: 2; heating at 180 ℃ to enable the thermoplastic vulcanized rubber to enter a molten state, and fully stirring to enable the molten thermoplastic vulcanized rubber and the neodymium iron boron to be fully mixed; and extruding and cooling the molten mixture, and shearing in the cooling process to obtain the snow-like hard magnetic particle precursor with the particle size of 5 mm. And (3) placing the snow-imitating hard magnetic particle precursor in a uniform magnetic field with 3T magnetic flux density for 60s of magnetization time, so that the magnetic material in the snow-imitating hard magnetic particle precursor is magnetized, thereby generating a magnetic field and finally preparing the snow-imitating hard magnetic particles.

In the preparation method of the snow-imitated soft magnetic particles, the soft magnetic material of the snow-imitated soft magnetic particles is ferroferric oxide, the particle size is 100 mu m, and the other contents are the same as the preparation method of the snow-imitated hard magnetic particles.

Example 2

In the embodiment, a snow-imitated soft magnetic particle layer and a snow-imitated hard magnetic particle layer are sequentially paved on a sliver array layer, the paving height of the snow-imitated soft magnetic particle layer is 80mm, the particle size of the snow-imitated soft magnetic particles is 2mm, the soft magnetic material of the snow-imitated soft magnetic particles is ferric oxide, the polymer matrix of the snow-imitated soft magnetic particles is polyurethane, and the mass ratio of the ferric oxide to the polyurethane is 2: 3; the laying height of the snow-like hard magnetic particle layer is 120mm, the particle size of the snow-like hard magnetic particles is 2mm, the hard magnetic material of the snow-like hard magnetic particles is samarium cobalt alloy, the polymer matrix of the snow-like hard magnetic particles is polyurethane, and the mass ratio of the samarium cobalt alloy to the polyurethane is 2: 3.

The rest is the same as in example 1.

Example 3

In the embodiment, the snow-like hard magnetic particle layer is only paved on the comb strip array layer, the paving height of the snow-like hard magnetic particle layer is 200mm, the particle size of the snow-like hard magnetic particles is 10mm, the hard magnetic material of the snow-like hard magnetic particles is an iron-platinum alloy, the polymer matrix of the snow-like hard magnetic particles is silicon rubber, and the mass ratio of the iron-platinum alloy to the silicon rubber is 1: 1.

The rest is the same as in example 1.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.