阅读说明：本技术 具有三维结构界面的水泥砂浆板及其制备方法 (Reinforced cement-mortar board and preparation method thereof with three-dimensional structure interface ) 是由 冀志江 李彬 王静 解帅 于 2018-05-21 设计创作，主要内容包括：本发明是关于一种具有三维结构界面的水泥砂浆板及其制备方法,其制备方法包括：将第一水泥砂浆和吸波剂混合,注入具有三维结构的模具,硬化后脱模,得到吸波砂浆层；在所述的吸波砂浆层上制备透波砂浆层,得到具有三维结构界面的水泥砂浆板；其中,所述的吸波砂浆层包括底板和三维结构层,其中三维结构层为规则排列的三维结构,附着在所述底板上。本发明方法简单且精度较高,对电磁波吸收强且厚度可调节,可做为建筑构件直接使用,可降低建筑材料的厚度和建筑施工的成本。(The present invention relates to a kind of reinforced cement-mortar board and preparation method thereof with three-dimensional structure interface, preparation method include: to mix the first cement mortar and wave absorbing agent, inject the mold with three-dimensional structure, demould after hardening, obtain wave-absorbing mortar layer；Wave transparent screed is prepared on the wave-absorbing mortar layer, obtains the reinforced cement-mortar board with three-dimensional structure interface；Wherein, the wave-absorbing mortar layer includes bottom plate and three-dimensional structure layer, and wherein three-dimensional structure layer is regularly arranged three-dimensional structure, is attached on the bottom plate.The method of the present invention is simple and precision is higher, and thickness strong to electro-magnetic wave absorption is adjustable, can be used as building element and directly uses, can reduce the thickness of construction material and the cost of construction.)

1. a kind of preparation method of the reinforced cement-mortar board with three-dimensional structure interface, characterized in that it comprises:

First cement mortar and wave absorbing agent are mixed, the mold with three-dimensional structure is injected, is demoulded after hardening, obtain wave-absorbing mortar Layer；

Wave transparent screed is prepared on the wave-absorbing mortar layer, obtains the reinforced cement-mortar board with three-dimensional structure interface；

Wherein, the wave-absorbing mortar layer includes bottom plate and three-dimensional structure layer, and wherein three-dimensional structure layer is regularly arranged three-dimensional Structure is attached on the bottom plate.

2. a kind of preparation method of reinforced cement-mortar board with three-dimensional structure interface according to claim 1, feature exist In the three-dimensional structure is pyramid, and the bottom surface of pyramid is bonded with bottom plate, and the bottom edge arranged adjacent or pyramid of each pyramid are with pre- If distance matrix is arranged.

3. a kind of preparation method of reinforced cement-mortar board with three-dimensional structure interface according to claim 1, feature exist It is prism or cylinder in, the three-dimensional structure, the bottom surface of prism or cylinder is bonded with bottom plate, and prism or cylinder are with pre-determined distance Matrix arrangement.

4. a kind of preparation method of reinforced cement-mortar board with three-dimensional structure interface according to claim 1, feature exist In the three-dimensional structure is triangular prism, and the side of triangular prism is bonded with bottom plate, the side arranged adjacent of each triangular prism or three Prism is with the arrangement of pre-determined distance matrix；

Or the three-dimensional structure is quadrangular, the side of quadrangular is bonded with bottom plate, and quadrangular is with the arrangement of pre-determined distance matrix.

5. a kind of preparation method of reinforced cement-mortar board with three-dimensional structure interface according to claim 1, feature exist In the preparation wave transparent screed includes:

The wave-absorbing mortar layer is surrounded with model framework, the second cement mortar preparation wave transparent screed is poured, smoothes out, hardening Demoulding, obtains the reinforced cement-mortar board with three-dimensional structure interface；

Or the second cement mortar is injected in model framework, it smoothes out, by the three-dimensional structure layer of the wave-absorbing mortar layer to decentralization Enter in the model framework, make the second cement mortar of tip contact of the three-dimensional structure layer, hardening demoulding is had The reinforced cement-mortar board at three-dimensional structure interface.

6. a kind of preparation method of reinforced cement-mortar board with three-dimensional structure interface according to claim 1, feature exist In first cement mortar includes cement and the first aggregate, and first aggregate is river sand, sea sand, Machine-made Sand, glass Microballon or expanded perlite.

7. a kind of preparation method of reinforced cement-mortar board with three-dimensional structure interface according to claim 5, feature exist It include cement and the second aggregate in, second cement mortar, second aggregate is expanded perlite, EPS ball, porous Glass microballoon or hollow glass micropearl.

8. a kind of preparation method of reinforced cement-mortar board with three-dimensional structure interface according to claim 1, feature exist In the wave absorbing agent is graphite, carbon black, carbon fiber, graphene, nano-manganese dioxide, ferrite powder, carbonyl iron dust, metal At least one of micro mist, silicon carbide and conducting polymer；

Wherein, when the wave absorbing agent is at least one of carbon black, carbon fiber and graphene, the wave absorbing agent accounts for the first water The mass fraction of cement mortar is 1-5%；

The wave absorbing agent is that graphite, nano-manganese dioxide, ferrite powder, carbonyl iron dust, metal fine powder, silicon carbide and conduction are poly- When closing at least one of object, the mass fraction that the wave absorbing agent accounts for the first cement mortar is 10%-50%.

9. a kind of reinforced cement-mortar board with three-dimensional structure interface, which is characterized in that by the described in any item sides of claim 1-8 Method is prepared, and successively includes: bottom plate, three-dimensional structure layer and wave transparent screed；The water with three-dimensional structure interface Silt particle pulpboard reflectivity under 8-18GHz frequency is lower than -10dB.

10. a kind of reinforced cement-mortar board with three-dimensional structure interface according to claim 9, which is characterized in that described Wave transparent screed has holding tank, and the three-dimensional structure of three-dimensional structure layer is accommodated, is bonded wave transparent screed with bottom plate；

Or the wave transparent screed have groove, the three-dimensional structure nib contacts with three-dimensional structure layer, make wave transparent screed with There is pre-determined distance between bottom plate.

Technical field

The present invention relates to a kind of the field of building materials, more particularly to a kind of reinforced cement-mortar board with three-dimensional structure interface And preparation method thereof.

Background technique

With science and technology fast development and electronics, electrical equipment be more and more widely used in communication, industry, The numerous areas such as scientific research, medical treatment and broadcast, the living environment and working environment of the mankind is almost by electronics, electric appliance and communication apparatus It is surrounded, the electromagnetic radiation that these equipment generate when working causes space electromagnetic environment worsening.Electromagnetic radiation pollution is There are the novel pollutions of huge potential hazard as a kind of.Electro-magnetic wave absorption construction material is can to convert or interfere by energy Electromagnetic energy is a kind of functional form building materials of thermal energy by effect etc., can rationally and effectively control the electromagnetic radiation of space Background intensity reduces the harm of electromagnetic radiation.For the electromagnetic pollution problem got worse, exploitation have bandwidth, absorb it is strong, The thin electro-magnetic wave absorption construction material of thickness inhales the Main way of wave building materials research by becoming.

Cement-based material is material most widely used in current building, and cement base electromagnetic absorber research is more early, including Wave absorption concrete and wave-absorbing mortar etc., it is most of to design to be formed by adding wave absorbing agent while carrying out structure.The knot mainly used Structure design method, which mainly has, realizes impedance matching, addition electromagnetic wave transparent material, frequency-selective surfaces etc..The surface shape of gradual change is to realize One of method of impedance matching is usually used in inhaling wave darkroom, and most common includes pyramid, spliting type.MULTILAYER COMPOSITE is to realize resistance Resisting matched common method, most of interface is plane, and how matched number of plies effect more be better, and absorbing property is better, but at This increase.

Summary of the invention

It is a primary object of the present invention to provide a kind of novel reinforced cement-mortar board and its system with three-dimensional structure interface Preparation Method, the technical problem to be solved is that the propagation paths for making it change incident electromagnetic wave, improve the impedance between two layers Match, reflection and refraction are capable of forming between adjacent shapes, increases propagation path and increase electromagnetic wave loss, thus more suitable for reality With.

The object of the invention to solve the technical problems adopts the following technical solutions to realize.It proposes according to the present invention A kind of reinforced cement-mortar board with three-dimensional structure interface preparation method comprising:

First cement mortar and wave absorbing agent are mixed, the mold with three-dimensional structure is injected, is demoulded after hardening, obtains inhaling wave Screed；

Wave transparent screed is prepared on the wave-absorbing mortar layer, obtains the reinforced cement-mortar board with three-dimensional structure interface；

Wherein, the wave-absorbing mortar layer includes bottom plate and three-dimensional structure layer, and wherein three-dimensional structure layer is regularly arranged Three-dimensional structure is attached on the bottom plate.

The object of the invention to solve the technical problems also can be used following technical measures and further realize.

Preferably, the preparation method of a kind of reinforced cement-mortar board with three-dimensional structure interface above-mentioned, wherein described three Dimension structure is pyramid, and the bottom surface of pyramid is bonded with bottom plate, and the bottom edge arranged adjacent or pyramid of each pyramid are with pre-determined distance matrix Arrangement.

Preferably, the preparation method of a kind of reinforced cement-mortar board with three-dimensional structure interface above-mentioned, wherein described three Structure is tieed up as prism or cylinder, the bottom surface of prism or cylinder is bonded with bottom plate, and prism or cylinder are with the arrangement of pre-determined distance matrix.

Preferably, the preparation method of a kind of reinforced cement-mortar board with three-dimensional structure interface above-mentioned, wherein described three Dimension structure is triangular prism, and the side of triangular prism is bonded with bottom plate, and the side arranged adjacent or triangular prism of each triangular prism are with default Distance matrix arrangement；

Or the three-dimensional structure is quadrangular, the side of quadrangular is bonded with bottom plate, and quadrangular is with pre-determined distance matrix Arrangement.

Preferably, the preparation method of a kind of reinforced cement-mortar board with three-dimensional structure interface above-mentioned, wherein the system Include: for wave transparent screed

The wave-absorbing mortar layer is surrounded with model framework, the second cement mortar preparation wave transparent screed is poured, smoothes out, Hardening demoulding, obtains the reinforced cement-mortar board with three-dimensional structure interface；

Or the second cement mortar is injected in model framework, smooth out, by the three-dimensional structure layer of the wave-absorbing mortar layer to Under be put into the model framework, make the second cement mortar of tip contact of the three-dimensional structure layer, hardening demoulding obtains Reinforced cement-mortar board with three-dimensional structure interface.

Preferably, the preparation method of a kind of reinforced cement-mortar board with three-dimensional structure interface above-mentioned, wherein described the One cement mortar includes cement and the first aggregate, and first aggregate is river sand, sea sand, Machine-made Sand, glass microballoon or expansion Perlite.

Preferably, the preparation method of a kind of reinforced cement-mortar board with three-dimensional structure interface above-mentioned, wherein described the Two cement mortar include cement and the second aggregate, second aggregate be expanded perlite, EPS ball, porous glass beads or Hollow glass micropearl.

Preferably, the preparation method of a kind of reinforced cement-mortar board with three-dimensional structure interface above-mentioned, wherein the suction Wave agent is graphite, carbon black, carbon fiber, graphene, nano-manganese dioxide, ferrite powder, carbonyl iron dust, metal fine powder, silicon carbide At least one of with conducting polymer；

Wherein, when the wave absorbing agent is at least one of carbon black, carbon fiber and graphene, the wave absorbing agent accounts for the The mass fraction of one cement mortar is 1-5%；

The wave absorbing agent is graphite, nano-manganese dioxide, ferrite powder, carbonyl iron dust, metal fine powder, silicon carbide and leads When at least one of electric polymer, the mass fraction that the wave absorbing agent accounts for the first cement mortar is 10%-50%.

Also the following technical solution is employed for the object of the invention to solve the technical problems to realize.It proposes according to the present invention A kind of reinforced cement-mortar board with three-dimensional structure interface, be prepared by method above-mentioned, successively include: bottom plate, three-dimensional Structure sheaf and wave transparent screed；The reinforced cement-mortar board with three-dimensional structure interface reflectivity under 8-18GHz frequency is low In -10dB.

The object of the invention to solve the technical problems also can be used following technical measures and further realize.

Preferably, a kind of reinforced cement-mortar board with three-dimensional structure interface above-mentioned, wherein the wave transparent screed tool There is holding tank, the three-dimensional structure of three-dimensional structure layer is accommodated, is bonded wave transparent screed with bottom plate；

Or the wave transparent screed has groove, the three-dimensional structure nib contacts with three-dimensional structure layer make wave transparent mortar There is pre-determined distance between layer and bottom plate.

By above-mentioned technical proposal, there is the present invention reinforced cement-mortar board and preparation method thereof at three-dimensional structure interface at least to have It has the advantage that

1) present invention changes the propagation path of incident electromagnetic wave, In by designing the shape and size at three-dimensional structure interface It is capable of forming reflection and refraction between adjacent shapes, increases propagation path and increases electromagnetic wave loss, select appropriate three-dimensional structure The height and angle of interface shape can reduce the thickness and cost of material when guaranteeing excellent absorbing property；

2) present invention realizes higher absorption by adjusting the number of plies, wave absorbing agent volume, aggregate type and the volume of screed Performance, the number of plies much impedance matchings more easy to accomplish, electromagnetic wave are easier to enter material internal；Wave absorbing agent type differing needles are to electricity The absorption frequency range of magnetic wave is different, is adjusted wave absorbing agent type according to application requirement, and can along electromagnetic wave incident side to exiting side by It gradually improves wave absorbing agent content and adjusts level of impedance match；Aggregate porosity is bigger, volume is bigger, and wave permeation layer thickness is smaller, wave transparent Performance is better, the good aggregate of wave transparent performance is placed in electromagnetic wave incident side is conducive to electromagnetic wave and enter material internal；Present invention tool There is the reinforced cement-mortar board at three-dimensional structure interface to can be realized in 8-18GHz frequency range internal reflection rate lower than -10dB, minimal reflection Rate can reach -35dB；

3) present invention has the preparation method of the reinforced cement-mortar board at three-dimensional structure interface simply and precision is higher, the Mortar Plates And thickness strong to electro-magnetic wave absorption is adjustable, and the electro-magnetic wave absorption construction material that other thickness can be replaced big, at high cost can be used as Building element directly uses, and can reduce the thickness of construction material and the cost of construction.

The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.

Detailed description of the invention

Fig. 1 is the top view for the mold that embodiment 1 has three-dimensional structure；

Fig. 2 is the side view for the mold that embodiment 1 has three-dimensional structure；

Fig. 3 is the top view of 1 wave-absorbing mortar layer of embodiment；

Fig. 4 is the side view of 1 wave-absorbing mortar layer of embodiment；

Fig. 5 is the side view for the reinforced cement-mortar board that embodiment 1 has three-dimensional structure interface；

Fig. 6 is the side view for the reinforced cement-mortar board that embodiment 2 has three-dimensional structure interface；

Fig. 7 is the top view of 3 wave-absorbing mortar layer of embodiment；

Fig. 8 is the side view of 3 wave-absorbing mortar layer of embodiment；

Fig. 9 is the top view of 4 wave-absorbing mortar layer of embodiment；

Figure 10 is the top view of 5 wave-absorbing mortar layer of embodiment.

Specific embodiment

It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with Attached drawing and preferred embodiment, to reinforced cement-mortar board proposed according to the present invention with three-dimensional structure interface and preparation method thereof its Specific embodiment, structure, feature and its effect, detailed description is as follows.In the following description, different " embodiment " or What " embodiment " referred to is not necessarily the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can It is combined by any suitable form.

The first cement mortar and the wave absorbing agent mixing that one embodiment of the present of invention proposes, inject the mould with three-dimensional structure Tool, demoulds after hardening, obtains wave-absorbing mortar layer；

Wave transparent screed is prepared on the wave-absorbing mortar layer, obtains the reinforced cement-mortar board with three-dimensional structure interface；

Wherein, the wave-absorbing mortar layer includes bottom plate and three-dimensional structure layer, and wherein three-dimensional structure layer is regularly arranged Three-dimensional structure is attached on the bottom plate.

Preferably, wave transparent screed is one or more layers, and wave-absorbing mortar layer is one or more layers.

Preferably, the top of three-dimensional structure is more than or equal to 5mm at a distance from bottom plate

Preferably, three-dimensional structure is pyramid, and the bottom surface of pyramid is bonded with bottom plate, the bottom edge arranged adjacent or rib of each pyramid Cone is with the arrangement of pre-determined distance matrix.

Preferably, three-dimensional structure is prism or cylinder, and the bottom surface of prism or cylinder is bonded with bottom plate, and prism or cylinder are with pre- If distance matrix is arranged.

Preferably, three-dimensional structure is triangular prism, and the side of triangular prism is bonded with bottom plate, the side adjacent row of each triangular prism Cloth or triangular prism are with the arrangement of pre-determined distance matrix；

Or three-dimensional structure is quadrangular, the side of quadrangular is bonded with bottom plate, and quadrangular is with the arrangement of pre-determined distance matrix.

Preferably, preparation wave transparent screed includes:

The wave-absorbing mortar layer is surrounded with model framework, the second cement mortar preparation wave transparent screed is poured, smoothes out, Hardening demoulding, obtains the reinforced cement-mortar board with three-dimensional structure interface；

Or the second cement mortar is injected in model framework, smooth out, by the three-dimensional structure layer of the wave-absorbing mortar layer to Under be put into the model framework, make the second cement mortar of tip contact of the three-dimensional structure layer, hardening demoulding obtains Reinforced cement-mortar board with three-dimensional structure interface.

Preferably, the first cement mortar includes cement and the first aggregate, and the preferred wave of the first aggregate is poor, density Greatly, the high aggregate of intensity is river sand, sea sand, Machine-made Sand, glass microballoon or expanded perlite.The ratio of mud and aggregate and wave absorbing agent Type it is related with volume.

Preferably, the second cement mortar includes cement and the second aggregate, and second aggregate is preferably the good bone of wave transparent Material is expanded perlite, EPS ball, porous glass beads or hollow glass micropearl.The water suction of second aggregate surface is serious, in order to reach To better workability, the ratio of mud is typically larger than 0.5.

Preferably, wave absorbing agent is graphite, carbon black, carbon fiber, graphene, nano-manganese dioxide, ferrite powder, carbonyl iron At least one of powder, metal fine powder, silicon carbide and conducting polymer；

Wherein, when wave absorbing agent is at least one of carbon black, carbon fiber and graphene, the wave absorbing agent accounts for the first cement The mass fraction of mortar is 1-5%；

Wave absorbing agent is graphite, nano-manganese dioxide, ferrite powder, carbonyl iron dust, metal fine powder, silicon carbide and conducting polymer When at least one of object, the mass fraction that the wave absorbing agent accounts for the first cement mortar is 10%-50%.

A kind of reinforced cement-mortar board with three-dimensional structure interface that another embodiment of the invention proposes, by side above-mentioned Method is prepared, and successively includes: bottom plate, three-dimensional structure layer and wave transparent screed；The water with three-dimensional structure interface Silt particle pulpboard reflectivity under 8-18GHz frequency is lower than -10dB.Wave transparent screed is thinner, and wave-absorbing effect is better.

Preferably, wave transparent screed has holding tank, and the three-dimensional structure of three-dimensional structure layer is accommodated, make wave transparent screed with Bottom plate fitting；

Or the wave transparent screed has groove, the three-dimensional structure nib contacts with three-dimensional structure layer make wave transparent mortar There is pre-determined distance between layer and bottom plate.

Reinforced cement-mortar board with three-dimensional structure interface is from electromagnetic wave incident side to electromagnetic wave exiting side, the concentration of wave absorbing agent It gradually rises or constant, aggregate wave transparent performance gradually decreases or constant in cement mortar.It is preferred that being penetrated in wave-absorbing mortar layer electromagnetic wave Side out.