阅读说明：本技术 基于敏感应力发光材料的复合草坪和布道及其制备方法 (Composite lawn and cloth path based on sensitive stress luminescent material and preparation method thereof ) 是由 彭登峰 黄泽锋 曲思岑 任占兵 于 2021-07-08 设计创作，主要内容包括：本发明属于人工草坪技术领域,公开了一种基于敏感应力发光材料的复合草坪和布道及其制备方法,将低密度聚乙烯颗粒PE、聚氧化乙烯PEO、抗氧化剂、相容剂以及氧化物应力发光粉末置于混炼机中混炼均匀,得混炼产物；将混炼产物加入到单螺杆挤出机,熔融喷丝,挤出；利用牵伸机牵伸,冷却至室温,制得草丝纤维；利用簇绒机将所述人造草丝纤维梭织到底布上；在底布远离草丝的背面涂胶粘剂后,置于烘箱进行烘干处理；以合适密度在人造草坪背面进行打孔处理,再填充缓冲物质,即得所述复合草坪和布道。本发明的产品以低廉的成本,简单的结构实现优良的照明,引导,人的行走轨迹可视化等优点,安全无毒,具有在不同的场合大规模推广的潜力。(The invention belongs to the technical field of artificial lawns, and discloses a composite lawn and cloth path based on sensitive stress luminescent materials and a preparation method thereof, wherein low-density polyethylene particles PE, polyethylene oxide PEO, an antioxidant, a compatilizer and oxide stress luminescent powder are placed in a mixing roll to be mixed uniformly to obtain a mixed product; adding the mixed product into a single-screw extruder, performing melt spinning, and extruding; drafting by a drafting machine, and cooling to room temperature to obtain the grass silk fiber; weaving the artificial grass fiber on a base fabric by using a tufting machine; coating adhesive on the back surface of the base fabric far away from the grass filaments, and then placing the base fabric in a drying oven for drying; and (3) punching the back of the artificial turf at a proper density, and filling a buffer substance again to obtain the composite turf and the cloth channel. The product of the invention realizes the advantages of excellent illumination, guidance, visual walking track of people and the like with low cost and simple structure, is safe and nontoxic, and has the potential of large-scale popularization in different occasions.)

1. A preparation method of a composite lawn and cloth channel is characterized by comprising the following steps:

step one, placing low-density polyethylene particles, polyethylene oxide (PEO), an antioxidant, a compatilizer and stress luminescent powder into a mixing roll to be mixed uniformly to obtain a mixed product for later use;

adding the mixed product into a single-screw extruder, performing melt spinning, and extruding; drafting by a drafting machine, cooling to room temperature, and preparing the grass silk fiber for later use;

thirdly, weaving the artificial grass fiber on the base fabric by using a tufting machine;

fourthly, after gluing an adhesive on the back surface of the base fabric far away from the grass filaments, placing the base fabric in a drying oven for drying;

and fifthly, punching the back of the artificial turf at a proper density, and refilling buffer substances to obtain the composite turf and the cloth channel.

2. The method for preparing a composite lawn and cloth path as claimed in claim 1, wherein in the first step, 80 parts by weight of low density polyethylene particles, 8 parts by weight of polyethylene oxide PEO, 0.5-3 parts by weight of antioxidant, 0-5 parts by weight of compatilizer, and 15-30 parts by weight of stress luminescent powder are weighed.

3. The method of claim 1, wherein the selected luminescent powders are doped with one or more of aluminate, silicate and stannate;

in the first step, the mixing conditions are as follows: mixing at 170-180 deg.C for 3-5 min

And in the second step, melt spinning is carried out at the processing temperature of 220-240 ℃.

4. The method for preparing the composite lawn and cloth channel as claimed in claim 1, wherein in the second step, the drafting is performed by a drafting machine at 130 ℃ to a draft of 3-6 times;

in the third step, the base fabric is plain woven fabric.

5. The method for preparing the composite lawn and cloth path as claimed in claim 1, wherein in the fourth step, the adhesive is carboxylated styrene-butadiene latex or PU latex;

the drying treatment conditions are as follows: drying at 80 deg.C for 5 h.

6. The method of claim 1, wherein in step five, the buffer substance is 70% rubber particles and 30% sand or 100% rubber particles, covering 0.5cm of the lawn.

7. A composite lawn and cloth channel prepared by the method for preparing the composite lawn and cloth channel as claimed in any one of claims 1 to 6, wherein the composite lawn and cloth channel comprises: artificial grass filaments, a buffer substance and a base fabric;

the artificial grass filaments are woven on the base fabric;

the buffer substance is filled in the holes punched on the back surface of the base fabric;

and gluing an adhesive on the back surface of the base fabric far away from the grass filaments.

8. A composite lawn of sensitive stress luminescent material, characterized in that, the composite lawn of sensitive stress luminescent material is prepared by applying the preparation method of the composite lawn and cloth path as claimed in any one of claims 1 to 6, and stress luminescent powder is added into artificial grass filaments.

9. A lawn buffer substance is characterized in that the lawn buffer substance is formed by mixing 70% of rubber particles and 30% of sand, and 70% of rubber particles and 30% of wood plastic particles or 100% of rubber particles are used or replaced.

10. The lawn substrate is characterized in that the lawn substrate is used for fixing grass filaments and has certain drainage capacity and is plain woven fabric, an adhesive used for adhering the grass filaments and the bottom of the lawn substrate is further adhered to the upper portion of the lawn substrate, and the adhesive is carboxylated styrene-butadiene latex or PU latex.

Technical Field

The invention belongs to the technical field of artificial lawns, and particularly relates to a composite lawn and cloth channel based on sensitive stress luminescent materials and a preparation method thereof.

Background

As a new class of energy materials, stress luminescent materials have started to rise in recent decades and have gained a certain degree of attention. The materials can emit light under force, at present, dozens of material systems exist, wherein, the brighter oxide systems are strontium aluminate systems (green light), silicate systems (blue light and green light) and stannate systems (red light), and the materials can directly emit light under the action of environmental mechanical force, for example, the materials can emit light when being trodden. The light-emitting diode has certain common characteristics, on one hand, the light energy can be absorbed in a wave band of 200-450 nm (the part comprises a visible light range, sunlight in life and light emitted by an LED can be partially and effectively absorbed and stored), and the stored light energy is released under the action of various mechanical external forces such as pressure, friction force, impact force, ultrasonic waves and the like, so that a light-emitting phenomenon is generated. On the other hand, the device can also directly convert mechanical energy such as pressure, friction and the like into optical energy, and realize the direct conversion from the mechanical energy to the optical energy. Due to its excellent characteristics and good luminous effect (partial luminous brightness can reach 200 cd/m)²The above), and various lattice positions can be improved in various ways, including doping Eu ions to improve the mechanoluminescence efficiency, adding Dy ions to enhance the long afterglow effect, controlling the ratio of the Eu ions to the Dy ions, and effectively coordinating the stress luminescence and the long afterglow characteristics.

In the process of building a strong sports country, the sports fitness becomes fashionable and even becomes an important part of daily life; with the pursuit of beautiful life, various playgrounds are increasingly present in our lives. The netherlands have a first global luminous road, namely a netherlands OssN329 highway, and the long afterglow fluorescent powder is used for absorbing light energy in the daytime and releasing the light energy at night to provide guidance for vehicles and pedestrians at night. Based on the condition that the local ice and snow weather is more and the road surface is iced, the novel material is developed by the long-afterglow fluorescent powder, the fluorescent powder can emit fluorescence when the temperature is reduced to a certain value, and the characteristic material is used for manufacturing snowflake-shaped paint to be printed on the road surface which is easy to slip so as to warn pedestrians.

In the suburbs of Eindhoven city (Eindhoven) in the netherlands, there is a 600-meter-long bicycle lane composed of solar-powered LED lamps and thousands of cobblestones, and the road becomes very beautiful every night: thousands of small stone hairs are bluish and green and glimmer, and at night, the magic whirlpools are generated, and the magic whirlpools wind forward like the space of the galaxy sky falling among people. This light-emitting green channel technology is also used in the Hainan-Asia Berkeley Forum. A couple of couples in the united states have also developed a light emitting road based on a solar hexagonal panel with solar panels and LED lights embedded inside the road board to display different indications, and a heating device to melt the ice and snow on the panel while snow is accumulated. The outer portion is a very high strength, abrasion resistant glass capable of bearing a weight of 125 tons. This technique is equivalent to laying a rigid liquid crystal panel on the ground, so the disadvantage is also evident, the cost of one panel is up to $ 6900, and if the solar road is laid all over the beauty, the conservative estimate is several billion dollars.

The current domestic luminous roads are also applied a lot, and mainly comprise self-luminous materials and light-storing self-luminous materials. The self-luminous material is a common LED lamp embedded in a road, and the light-storing self-luminous material can continuously emit light for several hours or even more than ten hours in a dark environment by absorbing light for five to fifteen minutes, and can be designed into different patterns.

In different sports and leisure occasions, the artificial lawn has the advantages of neatness, beauty, easy operation, wear resistance, frequent use and the like, and can be widely applied to sports fields such as runways, football fields, golf courses and the like. And the comprehensive activity field of squares, meeting places, primary and middle schools and kindergartens. And green decoration of roads, railways, greenery of communities, roofs and courtyards. Similar to the light-emitting road, people hope that the artificial lawn has the functions of beautifying and buffering, and also has the function of emitting light. However, the current luminous lawn types are limited and have low practicability, and the artificial lawn products mainly comprise noctilucent and electroluminescent artificial lawn products based on LED and artificial lawn products based on common fluorescence added with fluorescent powder.

The LED-based artificial lawn needs to be supplied with electric energy, is complex in structure, high in cost, high in electric energy loss and safety risk, is limited by principles, is not suitable for being laid outdoors, is easy to damage, is high in maintenance cost, and cannot meet the requirements of scenes such as football fields and the like needing violent movement and friction; on the basis of the noctilucent artificial lawn which absorbs sunlight in the daytime and releases energy at night, if the noctilucent artificial lawn is not easy to control in places without or with insufficient light sources, the exciting light is easy to form light pollution, the duration time is limited, the luminous intensity of the noctilucent artificial lawn is gradually reduced along with the lapse of time, and meanwhile, the noctilucent artificial lawn is limited by principles and cannot be laid indoors or in dark environments; and is inconvenient to lay and install. Therefore, a new luminescent lawn and a method for preparing the same are needed to overcome the problems and disadvantages of the existing luminescent lawn.

Through the above analysis, the problems and defects of the prior art are as follows:

(1) the current type of luminous lawn is mainly based on noctilucence and LED luminescence, and is relatively limited.

(2) The existing LED-based artificial lawn needs electric energy supply, is complex in structure of a light-emitting ground, high in cost, high in electric energy loss and safety risk, limited by principles, not suitable for being laid outdoors, easy to damage and high in maintenance cost, and cannot meet the requirements of scenes such as football fields needing violent movement and friction.

(3) The artificial turf who has now based on "absorb the sunlight daytime, the energy that releases comes out night" is luminous unable to be controlled, forms light pollution, and duration is limited, and its luminous intensity reduces gradually along with the time lapse, receives the principle restriction simultaneously, can't lay indoor and in the dark environment, and it is inconvenient to lay the installation.

The difficulty in solving the above problems and defects is:

at present, a luminous lawn based on noctilucent and LED luminescent materials is an existing technology, however, the luminescence of the noctilucent materials needs to absorb ultraviolet rays or short-wave high-energy rays, and cannot be excited by mechanical force, such as treading and friction force, and the long-time excitation of the ultraviolet rays can affect the service life, so that the noctilucent lawn is not suitable for being used in an environment without exciting light; the use of the LED needs a circuit and an electric wire and needs a power supply for electrifying, so that the cost is higher, and the LED device is not resistant to treading, so that the use of multi-scene laying is limited.

The significance of solving the problems and the defects is as follows:

the project is a composite artificial luminous lawn made of stress luminescent material based on mechanical force excitation luminescence, on one hand, under the condition of not needing excitation light and power supply wires, the self afterglow can play the roles of beautifying and road surface guiding. On the other hand, the luminous lawn has the unique function that the traditional luminous lawn and similar pavement luminous marks do not have, namely visible light is emitted by treading force, the walking track of people can be visualized in an environment-friendly mode, and the luminous lawn has excellent display and beautifying effects and has great future scientific and technological sense by emitting light when treading, without power supply and repeated use in sports scenes and entertainment scenes. In a word, the novel artificial lawn has the advantages of energy conservation, environmental protection, low cost, wide use scene and the like, simultaneously has the appearance of artificial materials, and can be mixed with the existing artificial materials for laying. The energy-saving and emission-reducing device can realize energy conservation and emission reduction, can greatly enhance the fashion and entertainment effects, and is suitable for being used and popularized in court, park and indoor or underground dim light scene.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a composite lawn and cloth channel and a preparation method thereof, and particularly relates to a composite lawn and cloth channel based on sensitive stress luminescent materials and a preparation method thereof.

The invention is realized in such a way that a preparation method of a composite lawn and cloth channel comprises the following steps: a preparation method of a composite lawn and cloth channel comprises the following steps:

step one, putting low-density polyethylene particles, polyethylene oxide (PEO), an antioxidant, a compatilizer and SAOED (or SSOSS and CAMSOED) powder into a mixing roll to be mixed uniformly to obtain a mixed product for later use;

adding the mixed product into a single-screw extruder, performing melt spinning, and extruding; drafting by a drafting machine, cooling to room temperature, and preparing the grass silk fiber for later use;

thirdly, weaving the artificial grass fiber on the base fabric by using a tufting machine;

fourthly, after gluing an adhesive on the back surface of the base fabric far away from the grass filaments, placing the base fabric in a drying oven for drying;

and fifthly, punching the back of the artificial turf at a proper density, and refilling buffer substances to obtain the composite turf and the cloth channel.

Further, in the first step, 80 parts of low-density polyethylene particles, 8 parts of polyethylene oxide (PEO), 0.5-3 parts of antioxidant, 0-5 parts of compatilizer and 15-30 parts of stress luminescent powder are weighed according to parts by mass.

Further, the stress luminescent powder is selected from one or more of doped aluminate, silicate and stannate, preferably the aluminate is SrAl₂O₄Eu/Dy (SAOED); the preferred silicate is _{2 7}CaAMgSiO(A＝Ca,Sr,Ba):Eu/Dy (CAMSOED)；Is superior in _{3 2 7}The stannate is SrSnO Sm/Si (SSOSS).

Further, in the first step, the mixing conditions are as follows: mixing at 170-180 ℃ for 3-5 min;

and in the second step, melt spinning is carried out at the processing temperature of 220-240 ℃.

Further, in the second step, a drafting machine is used for drafting at 130 ℃ to 3-6 times.

In the third step, the base fabric is plain woven fabric.

In the fourth step, the adhesive is carboxylic styrene-butadiene latex or PU latex.

In the fourth step, the drying conditions are as follows: drying at 80 deg.C for 5 h.

Further, in the fifth step, the buffer substance is 70% of rubber particles and 30% of sand or 100% of rubber particles, and the lawn is covered by 0.5 cm; wherein the sand is replaced by wood plastic particles.

The invention also aims to provide a composite lawn and cloth channel prepared by the preparation method of the composite lawn and cloth channel, wherein the composite lawn and cloth channel consists of base cloth, grid cloth, rubber particles, an adhesive, low-density polyethylene, an antistatic agent, an antioxidant 1010, a compatilizer YP510 and base cloth; the antistatic agent is a carboxyl styrene-butadiene latex, and the antistatic agent is polyethylene oxide (PEO).

The composite lawn and cloth path specifically comprises: artificial grass filaments, a buffer substance and a base fabric;

the artificial grass filaments are woven on the base fabric;

the buffer substance is filled in the holes punched on the back surface of the base fabric;

and gluing an adhesive on the back surface of the base fabric far away from the grass filaments.

The invention also aims to provide the composite lawn made of the stress-sensitive luminescent material, which is prepared by applying the preparation method of the composite lawn and the cloth channel, and stress luminescent powder is added into artificial grass filaments.

Another object of the present invention is to provide a lawn buffer material, which is prepared by mixing 70% of rubber particles and 30% of sand, and using or replacing 70% of rubber particles and 30% of wood plastic particles or 100% of rubber particles.

The invention also aims to provide a lawn substrate, which is used for fixing grass filaments and has certain drainage capacity and is plain woven fabric, wherein the upper part of the lawn substrate is also adhered with an adhesive for adhering the grass filaments and the bottom, and the adhesive is carboxylated styrene-butadiene latex or PU latex.

By combining all the technical schemes, after full mixing at 170-180 ℃, the raw material of solid large particles can be completely melted and uniformly mixed with stress luminescent powder, the raw material is further mixed by a melt spinning method, the melt is shaped into flat long lawn filaments with uniform size and thickness, the lawn filaments are stretched to a proper size by a tractor, the lawn filaments are cooled, the grass filaments are connected to a base fabric in a stable structure by a tufting machine, the base fabric is coated with glue to be solidified and connected, the drying and the punching are carried out to improve the air permeability and the drainage performance of the lawn, 70% of rubber particles and 30% of sand or 100% of rubber particles are filled to simulate the buffering effect and the comfortable touch feeling of the real lawn, and finally, the required sensitive stress luminescent composite lawn is successfully prepared after the finished product is inspected, and the required sensitive stress luminescent composite lawn has the advantages and positive effects that: according to the composite lawn and cloth channel and the preparation method thereof, the efficient mechanoluminescence material with good long afterglow effect is added into the artificial lawn, so that the buffering function of the lawn is retained, the composite lawn and cloth channel can be used in occasions with violent sports such as football fields and the like, and continuous luminescence can be realized; on one hand, light energy absorbed in the daytime can be released by self afterglow and stress at night, and light of light sources such as LEDs can supplement energy for the light sources at night; on the other hand, the energy generated by the movement of the person on the lawn (squeezing, rubbing, etc.) can be directly converted into light energy by the material, and the process is repeatable. Therefore, the product of the invention realizes the advantages of excellent illumination, guidance, visual walking track of people and the like with low cost and simple structure, is safe and nontoxic, has beautiful effect and great scientific and technological sense, and has the potential of large-scale popularization in different occasions.

In the prior art, the artificial turf mainly comprises a three-part structure, artificial grass filaments (usually drawn from PA, PP and PE materials), base cloth (single-layer base cloth, multi-layer base cloth, composite base cloth and the like) and an adhesive (styrene-acrylic emulsion, carboxylic styrene-butadiene emulsion, polyurethane emulsion and the like), different schemes mainly comprise adding different auxiliary materials, and the processes are different from each other.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a flow chart of a method for preparing a composite lawn and cloth channel according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a woven artificial turf provided by an embodiment of the present invention.

In the figure: 1. artificial grass filaments; 2. a buffer substance; 3. a base fabric.

Fig. 3 is a graph showing the relationship between the light intensity and the force applied by the ultraviolet light source after the powder and the ultraviolet light curing glue are packaged in a plastic sheet of 3cm by 3cm according to the weight ratio of 5:1 and irradiated for 3 seconds by the ultraviolet light source.

Fig. 4(a) is an effect diagram of absorbing light in the environment for tens of seconds in a room with a common white LED lamp turned on, provided by an embodiment of the present invention. Fig. 4(b) is a diagram of the sharp afterglow of fig. 4(a) when the display panel is placed in a slightly dark environment, and the tailing effect is obvious when the display panel is drawn by hard plastic.

Fig. 5(a) is a diagram of a primary grass filament made according to the embodiment of the present invention, which has an obvious afterglow effect after absorbing ambient light.

FIG. 5(b) is a diagram illustrating the effect of the embodiment of the present invention that FIG. 5(a) is squeezed to emit a brighter light.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Aiming at the problems in the prior art, the invention provides a composite lawn and cloth channel and a preparation method thereof, and the invention is described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the preparation method of the composite lawn and cloth road provided by the embodiment of the invention comprises the following steps:

s101, placing low-density polyethylene particles, polyethylene oxide (PEO), an antioxidant, a compatilizer and SAOED powder into a mixing roll, and uniformly mixing to obtain a mixed product for later use;

s102, adding the mixed product into a single-screw extruder, performing melt spinning, and extruding; drafting by a drafting machine, cooling to room temperature, and preparing the grass silk fiber for later use;

s103, weaving the artificial grass fiber on a base fabric by using a tufting machine;

s104, coating adhesive on the back surface of the base fabric far away from the grass filaments, and then placing the base fabric in an oven for drying;

and S105, punching the back of the artificial turf at a proper density, and refilling buffer substances to obtain the composite turf and the cloth channel.

The invention also provides a composite lawn and cloth channel, which consists of base cloth, mesh cloth, rubber particles, an adhesive, low-density polyethylene, an antistatic agent, an antioxidant 1010, a compatilizer YP510 and base cloth; the antistatic agent is a carboxyl styrene-butadiene latex, and the antistatic agent is polyethylene oxide (PEO).

The technical solution of the present invention is further described below with reference to specific examples.

1. The most basic description of artificial turf is now cushioning, as well as aesthetic, even self-illuminating, in the hope of serving as a light source at night for some guidance and illumination. The most important functions of the artificial lawn are buffering and wear-resisting, and the LED artificial lawn cannot meet the sports requirements of people because LEDs are added. However, if the LED is abandoned, the fluorescent material is added as a light source in the manufacturing process, and the light emission cannot be controlled, and the lawn is limited by conditions such as light irradiation and the like, and is not practical. Therefore, the invention selects the high-efficiency mechanoluminescence material with good long afterglow effect to be added into the artificial lawn, thereby not only keeping the buffer function of the lawn and being capable of being used in occasions with violent sports such as football fields, but also realizing continuous luminescence. On one hand, the light absorbed in the daytime can be released by being stressed at night, and the light of the LED and other light sources can supplement energy for the light at night; on the other hand, the movement of the person on the lawn can be converted into light energy by the material. Therefore, the product realizes the advantages of excellent illumination, guidance, visual walking track of people and the like with low cost and simple structure, is safe and nontoxic, and has the potential of large-scale popularization in different occasions.

2. The first scheme is as follows: made into a woven artificial lawn (see figure 2)

The method comprises the following steps: artificial grass filaments 1, a buffer substance 2 and a base fabric 3.

Material consumption:

the experimental steps are as follows:

preparing artificial grass filaments 1: mixing and homogenizing low-density polyethylene particles (80 parts), polyethylene oxide (PEO) (2 parts), an antioxidant (0.5-3 parts), a compatilizer (0-5 parts) and SAOED powder (15-30 parts), adding the mixture into a single-screw extruder, and performing melt spinning at the processing temperature of 220-240 ℃ to obtain the grass fiber.

Secondly, tatting: the synthetic grass filaments are woven on the base fabric 3 by using a tufting machine, and the base fabric is usually selected from plain woven fabrics (from the aspect of the weave: woven fabrics are divided into plain woven fabrics, twill woven fabrics and satin woven fabrics, each intersection point between warp yarns and weft yarns is called a weave point and is the minimum basic unit of the woven fabrics, the plain woven fabrics refer to a fabric weave in which the warp yarns and the weft yarns are interwoven in a regular manner of one over the other, and the plain woven fabrics are the simplest one of the three weaves.

Thirdly, gluing, drying and reinforcing: in order to improve the pulling-out resistance of the grass filaments and the stability of the grass filaments under various weather conditions, such as rainy days, the back of the base fabric far away from the grass filaments needs to be coated with an adhesive, a carboxylic styrene-butadiene latex or a PU latex, and then dried to fix the adhesive.

Fourthly, punching: in order to prevent rainwater accumulation in rainy days, the back of the artificial turf is punched at a proper density, and 70% of rubber particles and 30% of sand (which can be replaced by wood plastic particles) or 100% of rubber particles are filled as a buffer substance 2, so that the artificial turf is obtained.

Scheme II: made into shuttle-woven artificial lawn

The materials used are shown in table 1.

TABLE 1

The experimental steps are as follows:

preparing artificial grass filaments: mixing and homogenizing low-density polyethylene particles, polyethylene oxide (PEO), an antioxidant, a compatilizer and SAOED powder, adding the mixture into a single-screw extruder, and performing melt spinning at the processing temperature of 220-240 ℃ to obtain the grass silk fiber. Wherein, the proportion of the polyethylene particles, the polyethylene oxide PEO, the antioxidant, the compatilizer and the SAOED powder can adopt 7 kinds, as shown in the table 2.

Secondly, tatting: the artificial grass filaments are woven on the base fabric by using a tufting machine, the base fabric is usually selected from plain woven fabrics (from the weave: woven fabrics are divided into plain woven fabrics, twill woven fabrics and satin woven fabrics, each intersection point between warp yarns and weft yarns is called a weave point and is the minimum basic unit of the woven fabrics, the plain woven fabrics refer to a fabric weave in which the warp yarns and the weft yarns are interwoven in a regular manner from one to the next, and the plain woven fabrics are the simplest one of three weaves.

Thirdly, gluing, drying and reinforcing: in order to improve the pulling-out resistance of the grass filaments and the stability of the grass filaments under various weather conditions, such as rainy days, the back of the base fabric far away from the grass filaments needs to be coated with an adhesive, a carboxylic styrene-butadiene latex or a PU latex, and then dried to fix the adhesive.

Fourthly, punching: in order to prevent rainwater accumulation in rainy days, the back of the artificial turf is punched at a proper density, and 70% of rubber particles and 30% of sand (which can be replaced by wood plastic particles) or 100% of rubber particles are filled as buffer substances, so that the artificial turf is obtained.

TABLE 2 compounding ratio of polyethylene particles, polyethylene oxide PEO, antioxidant and compatibilizer, SAOED powder

Variable value: the mixing temperature is 170 ℃ and 180 ℃; the mixing time is 3-5 minutes, the mixture ratio of the components is that the melting temperature is 220-300 ℃, the drafting multiple is 4-6 times, and the temperature of the reaction kettle is 40-60 ℃.

3. The technical solution of the present invention is further described with reference to the following specific examples.

Example 1

First, low-density polyethylene particles (80 parts), polyethylene oxide (PEO) (8 parts), an antioxidant (0.5 part), a compatibilizer (1 part), and SAOED powder (15 parts) were kneaded in a kneader at 170 ℃ for 5 minutes to homogenize the mixture.

Secondly, adding the kneaded product into a single-screw extruder, melting at the processing temperature of 240 ℃, extruding, drafting to 5 times at the temperature of 130 ℃ by a drafting machine, and cooling to room temperature to obtain the grass silk fiber.

Thirdly, the artificial grass filaments are woven on the base fabric by using a tufting machine, and the base fabric is usually selected from plain woven fabrics in view of production convenience.

Fourthly, gluing an adhesive on the back surface of the base fabric far away from the grass silk, selecting carboxylic styrene-butadiene latex, and then putting the latex into an oven to be dried for 5 hours at the temperature of 80 ℃.

Fifthly, using 1 hole/cm²The artificial turf is obtained by punching the back of the artificial turf, and filling 70% of rubber particles and 30% of sand as buffer substances to cover the artificial turf by about 0.5 cm.

Example 2

First, low-density polyethylene particles (80 parts), polyethylene oxide (PEO) (8 parts), an antioxidant (3 parts), a compatibilizer (5 parts), and SAOED powder (30 parts) were put into a mixer and mixed at 170 ℃ for 5 minutes to homogenize the mixture.

Secondly, adding the kneaded product into a single-screw extruder, melting at the processing temperature of 240 ℃, extruding, drafting to 3 times at the temperature of 130 ℃ by a drafting machine, and cooling to room temperature to obtain the grass silk fiber.

Thirdly, the artificial grass filaments are woven on the base fabric by using a tufting machine, and the base fabric is usually selected from plain woven fabrics in view of production convenience.

Fourthly, gluing an adhesive on the back surface of the base fabric far away from the grass silk, selecting carboxylic styrene-butadiene latex, and then putting the latex into an oven to be dried for 5 hours at the temperature of 80 ℃.

Fifthly, using 1 hole/cm²The artificial turf is obtained by punching the back of the artificial turf, and filling 70% of rubber particles and 30% of sand as buffer substances to cover the artificial turf by about 0.5 cm.

Example 3

First, low-density polyethylene particles (80 parts), polyethylene oxide (PEO) (8 parts), an antioxidant (1.5 parts), a compatibilizer (3 parts), and SAOED powder (25 parts) were kneaded in a kneader at 170 ℃ for 5 minutes to homogenize the mixture.

Secondly, adding the kneaded product into a single-screw extruder, melting at the processing temperature of 240 ℃, extruding, drafting to 3 times at the temperature of 130 ℃ by a drafting machine, and cooling to room temperature to obtain the grass silk fiber.

Thirdly, the artificial grass filaments are woven on the base fabric by using a tufting machine, and the base fabric is usually selected from plain woven fabrics in view of production convenience.

Fourthly, gluing an adhesive on the back surface of the base fabric far away from the grass silk, selecting carboxylic styrene-butadiene latex, and then putting the latex into an oven to be dried for 5 hours at the temperature of 80 ℃.

Fifthly, using 1 hole/cm²The artificial turf is obtained by punching the back of the artificial turf, and filling 70% of rubber particles and 30% of sand as buffer substances to cover the artificial turf by about 0.5 cm.

Example 4

First, low-density polyethylene particles (80 parts), polyethylene oxide (PEO) (8 parts), an antioxidant (2 parts), a compatibilizer (3 parts), and SAOED powder (20 parts) were put into a mixer and mixed at 170 ℃ for 5 minutes to homogenize the mixture.

Secondly, adding the kneaded product into a single-screw extruder, melting at the processing temperature of 240 ℃, extruding, drafting to 4 times at the temperature of 130 ℃ by a drafting machine, and cooling to room temperature to obtain the grass silk fiber.

Thirdly, the artificial grass filaments are woven on the base fabric by using a tufting machine, and the base fabric is usually selected from plain woven fabrics in view of production convenience.

Fourthly, gluing an adhesive on the back surface of the base fabric far away from the grass silk, selecting carboxylic styrene-butadiene latex, and then putting the latex into an oven to be dried for 5 hours at the temperature of 80 ℃.

Fifthly, using 1 hole/cm²The artificial turf is obtained by punching the back of the artificial turf, and filling 70% of rubber particles and 30% of sand as buffer substances to cover the artificial turf by about 0.5 cm.

Example 5

First, low-density polyethylene particles (80 parts), polyethylene oxide (PEO) (8 parts), an antioxidant (2.5 parts), a compatibilizer (4 parts), and SAOED powder (25 parts) were kneaded in a kneader at 170 ℃ for 5 minutes to homogenize the mixture.

Secondly, adding the kneaded product into a single-screw extruder, melting at the processing temperature of 240 ℃, extruding, drafting to 3 times at the temperature of 130 ℃ by a drafting machine, and cooling to room temperature to obtain the grass silk fiber.

Thirdly, the artificial grass filaments are woven on the base fabric by using a tufting machine, and the base fabric is usually selected from plain woven fabrics in view of production convenience.

Fourthly, gluing an adhesive on the back surface of the base fabric far away from the grass silk, selecting carboxylic styrene-butadiene latex, and then putting the latex into an oven to be dried for 5 hours at the temperature of 80 ℃.

Fifthly, using 1 hole/cm²The artificial turf is obtained by punching the back of the artificial turf, and filling 70% of rubber particles and 30% of sand as buffer substances to cover the artificial turf by about 0.5 cm.

Example 6

Firstly, low-density polyethylene particles (60 parts), polyethylene oxide (PEO) (8 parts), an antioxidant (2.5 parts), a compatibilizer (4 parts), and SSOSS and CAMSOED powders (1: 1; 45 parts) were put into a mixer and mixed at 170 ℃ for 5 minutes to be uniform.

Secondly, adding the kneaded product into a single-screw extruder, melting at the processing temperature of 240 ℃, extruding, drafting to 3 times at the temperature of 130 ℃ by a drafting machine, and cooling to room temperature to obtain the grass silk fiber.

Thirdly, the artificial grass filaments are woven on the base fabric by using a tufting machine, and the base fabric is usually selected from plain woven fabrics in view of production convenience.

Fourthly, gluing an adhesive on the back surface of the base fabric far away from the grass silk, selecting carboxylic styrene-butadiene latex, and then putting the latex into an oven to be dried for 5 hours at the temperature of 80 ℃.

Fifthly, using 1 hole/cm²The artificial turf is obtained by punching the back of the artificial turf, and filling 70% of rubber particles and 30% of sand as buffer substances to cover the artificial turf by about 0.5 cm.

Example 7

② the low-density polyethylene particles (80 parts), polyethylene oxide PEO (8 parts), antioxidant (2.5 parts) and compatibilizer (4 parts), SSOSS and CAMSOED powders (1: 1; 40 parts) were put into a mixer and mixed at 170 ℃ for 5min to be uniform.

Secondly, adding the kneaded product into a single-screw extruder, melting at the processing temperature of 240 ℃, extruding, drafting to 4 times at the temperature of 130 ℃ by a drafting machine, and cooling to room temperature to obtain the grass silk fiber.

Thirdly, the artificial grass filaments are woven on the base fabric by using a tufting machine, and the base fabric is usually selected from plain woven fabrics in view of production convenience.

Fourthly, gluing an adhesive on the back surface of the base fabric far away from the grass silk, selecting carboxylic styrene-butadiene latex, and then putting the latex into an oven to be dried for 5 hours at the temperature of 80 ℃.

Fifthly, using 1 hole/cm²The artificial turf is obtained by punching the back of the artificial turf, and filling 70% of rubber particles and 30% of sand as buffer substances to cover the artificial turf by about 0.5 cm.

In a preferred embodiment of the invention, the composite lawn of the stress-sensitive luminescent material is provided, and the stress-sensitive luminescent material is added into the grass filaments and has sensitive stress luminescence capability and long afterglow capability.

In a preferred embodiment of the invention, a lawn buffer substance is provided, which is formed by mixing 70% of rubber particles and 30% of sand, wherein the materials can be replaced by 70% of rubber particles and 30% of wood plastic particles or 100% of rubber particles.

In a preferred embodiment of the present invention, there is provided a substrate for lawn, for fixing grass filaments and having a certain drainage ability, which is a plain woven fabric, and an adhesive thereon for adhering the grass filaments and the bottom, and which may be carboxylated styrene-butadiene latex or PU latex.

The positive effects of the present invention will be further described below with reference to specific experimental data.

The stress luminescent powder used in the experiment has macroscopic stress luminescent intensity.

The powder and the ultraviolet light curing glue are packaged in a plastic sheet with the thickness of 3cm by 3cm according to the weight ratio of 5:1, the relationship between the light intensity and the stress is measured after the ultraviolet light source is used for irradiating for 3s, and the result is shown in figure 3:

the relationship between the stress luminous intensity of the luminous powder and the stress is basically linear, and the luminous intensity is accelerated to a certain extent along with the increase of the stress. In practical situations, in a dark night environment, the 5N force excitation light is brightly visible, and in a more common night with ambient light, more than 10N force is marked. In a bright environment with an LED light source used daily, the force of 35N is used for excitation, and the stress track displayed by the light can be seen by close observation.

The material also has good afterglow effect, and after absorbing light in the environment for tens of seconds in a common room with a white LED lamp turned on and being placed in a slightly dark environment, the material has strong afterglow, and the effect is shown in figures 4(a) and 4(b) if the material is drawn by hard plastic.

PDMS and stress luminescent powder are mixed according to the weight ratio of 1:1 and then attached to a card protection film with the thickness of 70mic, and are cut into strips by a utility knife. As shown in fig. 5(a) and 5 (b).

The material has strong stress luminous intensity and good afterglow, so that the material can meet the requirements of various aspects such as guidance, display, stress feedback and the like of a luminous lawn.

The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.