Special high-elasticity bonding layer material for solar power generation pavement and preparation method of special high-elasticity bonding layer material

Abstract

The invention belongs to the technical field of binding materials, and particularly relates to a special high-elasticity binding layer material for a solar power generation pavement and a preparation method of the special high-elasticity binding layer material. The material is prepared from the following components in parts by mass: 30 to 50 parts of bisphenol A type epoxy resin, 4 to 8 parts of polyimide, 10 to 20 parts of waterborne acrylic resin emulsion, 12 to 22 parts of acrylic acid modified reactive slip agent, 3 to 6 parts of alicyclic ammonia, 4 to 8 parts of polyether amine, 0.2 to 0.5 part of defoaming agent, 1 to 3 parts of catalyst and 15 to 30 parts of filler. The preparation method comprises the following steps: mixing the components in sequence and uniformly stirring to obtain the high-elasticity bonding layer material. The material has excellent toughness and strength after being cured, and can better resist vibration and impact force.

Description

Technical Field

[0001] The invention belongs to the technical field of bonding materials, and in particular relates to a high-elastic bonding layer material specially used for solar power generation pavement and a preparation method thereof. Background Art

[0002] The full name of solar pavement is "solar photovoltaic power generation pavement", which refers to a new multifunctional pavement that directly lays a solar photovoltaic power generation layer on the surface of an existing asphalt or cement concrete pavement as a surface layer. The solar photovoltaic power generation layer is made up of multiple solar cell modules that are electrically connected. Its working principle is to convert the absorbed sunlight into direct current through the photoelectric effect of the solar cells in the power generation layer, and then convert it into alternating current through an inverter, which is stored in the connection layer for the operation of the solar pavement itself. The excess electricity can be stored through roadside electric piles or connected to the power grid, ultimately realizing photovoltaic power generation.

[0003] Therefore, solar pavement is fundamentally different from traditional asphalt and cement concrete pavements. It is necessary to ensure the stability of the surface layer, which puts higher requirements on the bonding structural layer materials used between solar cell modules and between solar cell modules and asphalt or cement concrete. The bonding materials in the prior art mostly use epoxy resin-based adhesives. Due to the good bonding performance, relatively low price and simple bonding process of epoxy resin-based adhesives, they have been widely used in various industrial fields in recent decades. However, epoxy resin-based adhesives also have some defects, especially the problems of brittleness, poor toughness and poor viscosity after curing, which makes the bonding layer easy to break, causing the solar cell module to shift, seriously affecting the quality of the project, and even becoming a safety hazard. Summary of the invention

[0004] In order to solve the problem that the existing adhesive is brittle and has poor elasticity after curing, the present invention provides a high-elastic bonding layer material specially used for solar power generation pavement, which increases the elastic properties of the material and avoids the decrease in viscosity after multiple vibrations.

[0005] The high elastic bonding layer material specially used for solar power generation pavement provided by the present invention comprises the following components in mass fractions: 30-50 parts of bisphenol A epoxy resin, 4-8 parts of polyimide, 10-20 parts of water-based acrylic resin emulsion, 12-22 parts of acrylic acid modified reactive slip agent, 3-6 parts of alicyclic amine, 4-8 parts of polyether amine, 0.2-0.5 parts of defoaming agent, 1-3 parts of catalyst and 15-30 parts of filler.

[0006] Furthermore, the bonding layer material includes the following components in mass fractions: 38 parts of bisphenol A epoxy resin, 6 parts of polyimide, 13 parts of water-based acrylic resin emulsion, 15 parts of acrylic modified reactive slip agent, 4 parts of alicyclic amine, 6 parts of polyether amine, 0.4 parts of defoaming agent, 1.6 parts of catalyst, and 16 parts of filler.

[0007] Furthermore, the epoxy value of the bisphenol A epoxy resin is 0.44.

[0008] Furthermore, the acrylic acid modified reactive slip agent is SPS produced by Beijing Baiyuan Chemical Co., Ltd.

[0009] Furthermore, the defoaming agent is silicone resin.

[0010] Furthermore, the catalyst is dibutyltin dilaurate.

[0011] Furthermore, the filler is one or more of mica powder, talcum powder, quartz mineral powder and fine stone.

[0012] The preparation method of the above-mentioned high elastic bonding layer material specially used for solar power generation pavement comprises the following steps: (1) At room temperature, polyimide, water-based acrylic resin emulsion and acrylic modified reactive slip agent are added to bisphenol A epoxy resin in sequence at a uniform speed, while being stirred at a speed of 50-200 r / min. After the addition is completed, stirring is continued at the speed for 20-35 minutes; (2) After stirring, add defoamer, catalyst, alicyclic amine and polyether amine, and stir at a speed of 200-350 r / min for 1-1.5 hours. Then, add filler according to the viscosity of the material, and continue to stir at a speed of 100-250 r / min until the mixture is evenly mixed, thereby obtaining the bonding layer material.

[0013] The beneficial effects of the present invention are: The high elastic bonding layer material specially used for solar power generation pavement provided by the present invention adopts bisphenol A epoxy resin, which is particularly suitable for solar power generation pavement due to its strong bonding adhesion, high mechanical strength and corrosion resistance; polyimide has excellent mechanical properties such as high tensile strength, and is resistant to low temperature, high temperature and radiation, and has good thermal stability. At the same time, it can also be used as a modifier to improve the weather resistance and toughness of bisphenol A epoxy resin, and avoid the hardness and brittleness after hardening, which leads to a decrease in bonding performance; the water-based acrylic resin emulsion and bisphenol A epoxy resin can be interwoven into a network after being mixed and cured, thereby improving the cross-linking density of the material and further enhancing the toughness of the material; the acrylic acid modified reactive lubricant can improve the rebound resilience of the polymer and enhance the elasticity of the material; the alicyclic amine and polyether amine adopted further improve the toughness and strength of the material, make the material more resistant to vibration and impact force, and extend the service life.

[0014] The method for preparing the special high-elastic bonding layer material for solar power generation pavement provided by the present invention is simple to operate, low in cost, green and environmentally friendly, and has broad application prospects. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0016] Example 1 The highly elastic bonding layer material specially used for solar power generation pavement provided in this embodiment includes the following components in mass fractions: 38 parts of bisphenol A epoxy resin, 6 parts of polyimide, 13 parts of water-based acrylic resin emulsion, 15 parts of acrylic acid-modified reactive lubricant, 4 parts of alicyclic amine, 6 parts of polyether amine, 0.4 parts of silicone resin, 1.6 parts of dibutyltin dilaurate, and 16 parts of mica powder; the epoxy value of bisphenol A epoxy resin is 0.44, and the acrylic acid-modified reactive lubricant is SPS produced by Beijing Baiyuan Chemical Co., Ltd.

[0017] The preparation method of the above-mentioned high elastic bonding layer material specially used for solar power generation pavement comprises the following steps: (1) At room temperature, polyimide, water-based acrylic resin emulsion and acrylic modified reactive slip agent are added to bisphenol A epoxy resin in sequence at a uniform speed, while being stirred at a speed of 100 r / min. After the addition is completed, stirring is continued at the speed for 25 minutes; (2) After stirring, add defoamer, catalyst, alicyclic amine and polyether amine, and stir at 220 r / min for 1.5 h. Then add filler according to the viscosity of the material, and continue stirring at 180 r / min until the mixture is evenly mixed to obtain the bonding layer material.

[0018] Example 2 The highly elastic bonding layer material specially used for solar power generation pavement provided in this embodiment includes the following components in mass fractions: 45 parts of bisphenol A epoxy resin, 5 parts of polyimide, 16 parts of water-based acrylic resin emulsion, 17 parts of acrylic acid-modified reactive lubricant, 3 parts of alicyclic amine, 5 parts of polyether amine, 0.5 parts of silicone resin, 2 parts of dibutyltin dilaurate, and 22 parts of talc; the epoxy value of bisphenol A epoxy resin is 0.44, and the acrylic acid-modified reactive lubricant is SPS produced by Beijing Baiyuan Chemical Co., Ltd.

[0019] The preparation method of the above-mentioned high elastic bonding layer material specially used for solar power generation pavement comprises the following steps: (1) At room temperature, polyimide, water-based acrylic resin emulsion and acrylic modified reactive slip agent are added to bisphenol A epoxy resin in sequence at a uniform speed, while stirring at a speed of 120 r / min. After the addition is completed, stirring is continued at this speed for 30 minutes; (2) After stirring, add defoamer, catalyst, alicyclic amine and polyether amine, and stir at 300 r / min for 1 hour. Then add filler according to the viscosity of the material, and continue stirring at 200 r / min until the mixture is evenly mixed to obtain the bonding layer material.

[0020] Example 3 The highly elastic bonding layer material specially used for solar power generation pavement provided in this embodiment includes the following components in mass fractions: 30 parts of bisphenol A epoxy resin, 4 parts of polyimide, 12 parts of water-based acrylic resin emulsion, 15 parts of acrylic acid-modified reactive lubricant, 3 parts of alicyclic amine, 4 parts of polyether amine, 0.3 parts of silicone resin, 1 part of dibutyltin dilaurate, and 18 parts of quartz mineral powder; the epoxy value of bisphenol A epoxy resin is 0.44, and the acrylic acid-modified reactive lubricant is SPS produced by Beijing Baiyuan Chemical Co., Ltd.

[0021] The preparation method of the above-mentioned high elastic bonding layer material specially used for solar power generation pavement comprises the following steps: (1) At room temperature, polyimide, water-based acrylic resin emulsion and acrylic modified reactive slip agent are added to bisphenol A epoxy resin in sequence at a uniform speed, while stirring at a speed of 120 r / min. After the addition is completed, stirring is continued at this speed for 30 minutes; (2) After stirring, add defoamer, catalyst, alicyclic amine and polyether amine, and stir at 270 r / min for 1.2 h. Then add filler according to the viscosity of the material, and continue stirring at 200 r / min until the mixture is evenly mixed to obtain the bonding layer material.

[0022] The bonding layer materials prepared in the above embodiments 1-3 and the common epoxy resin-based bonding material (commercially available YY5540A / B fast-curing epoxy AB glue) were subjected to performance tests, wherein the vibration resistance was determined according to JGJ101-1996, and the temperature resistance, heat resistance and weather resistance were determined according to GB / T 1735-1979. Six groups of samples were prepared for each group of embodiments, and the average value was taken. The test results are shown in Table 1.

[0023] Table 1 - Test results of bonding layer material properties

[0024] It can be seen from Table 1 that the bonding layer materials of Examples 1-3 have better comprehensive properties, especially the rebound rate and elongation at break, which indicates that the bonding layer materials prepared by the present invention have better toughness and strength, and are more resistant to vibration and impact.

[0025] Although the present invention has been described in detail by way of preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection described in the claims.

Claims

1. A highly elastic bonding layer material specially used for solar power generation pavement, characterized in that: The invention comprises the following components in mass fraction: 30-50 parts of bisphenol A epoxy resin, 4-8 parts of polyimide, 10-20 parts of waterborne acrylic resin emulsion, 12-22 parts of acrylic acid modified reactive slip agent, 3-6 parts of alicyclic amine, 4-8 parts of polyether amine, 0.2-0.5 parts of defoaming agent, 1-3 parts of catalyst and 15-30 parts of filler.

2. A highly elastic bonding layer material for solar power generation pavement as claimed in claim 1, characterized in that: The bonding layer material includes the following components in mass fractions: 38 parts of bisphenol A epoxy resin, 6 parts of polyimide, 13 parts of water-based acrylic resin emulsion, 15 parts of acrylic acid-modified reactive slip agent, 4 parts of alicyclic amine, 6 parts of polyether amine, 0.4 parts of defoaming agent, 1.6 parts of catalyst, and 16 parts of filler.

3. A highly elastic bonding layer material for solar power generation pavement as claimed in claim 1, characterized in that: The epoxy value of the bisphenol A epoxy resin is 0.

44.

4. The high elastic bonding layer material for solar power generation pavement according to claim 1, characterized in that: The acrylic acid modified reactive slip agent is SPS produced by Beijing Baiyuan Chemical Co., Ltd.

5. The high elastic bonding layer material for solar power generation pavement according to claim 1, characterized in that: The defoaming agent is silicone resin.

6. A highly elastic bonding layer material for solar power generation pavement as claimed in claim 1, characterized in that: The catalyst is dibutyltin dilaurate.

7. A highly elastic bonding layer material for solar power generation pavement as claimed in claim 1, characterized in that: The filler is one or more of mica powder, talcum powder, quartz powder and fine stone.

8. The method for preparing a highly elastic bonding layer material for solar power generation pavement according to claim 1, characterized in that: The steps include: (1) At room temperature, polyimide, water-based acrylic resin emulsion and acrylic modified reactive slip agent are added to bisphenol A epoxy resin in sequence at a uniform speed, while being stirred at a speed of 50-200 r / min. After the addition is completed, stirring is continued at the speed for 20-35 minutes; (2) After stirring, add defoamer, catalyst, alicyclic amine and polyether amine, and stir at a speed of 200-350 r / min for 1-1.5 hours. Then, add filler according to the viscosity of the material, and continue to stir at a speed of 100-250 r / min until the mixture is evenly mixed, thereby obtaining the bonding layer material.

Images