阅读说明：本技术 一种太阳能背板基材开裂修复胶及其制备方法 (A kind of solar energy backboard substrate cracking repairs glue and preparation method thereof ) 是由 张国良 吴秀琴 于 2019-08-29 设计创作，主要内容包括：本发明公开了一种太阳能背板基材开裂修复胶及其制备方法,其中,太阳能背板基材开裂修复胶,由下列重量份配比的原料组合而成：15-20份的天然橡胶、7-10份的硅藻土、4-6份的石墨烯粉体、1.3-2.2份的二氧化钛、0.5-0.8份的促进剂、0.8-1.2份的碳化硅、0.2-0.5份的防老剂、30-40份的聚酯基体树脂、30-40份的丙烯酸酯单体、25-30份的5,6-苯并-2-亚甲基-1,3-二氧环庚烷,其中,聚酯基体树脂由下列重量份配比的原料制备而成：27-33份的饱和二元羧酸以及35-40份的脂环族二元醇。利用本发明的修复胶产品对太阳能背板上出现的微小裂缝进行修复,能够提高背板的整体强度,具有良好的耐候性能,能够有效延长背板的使用寿命。(It cracks the invention discloses a kind of solar energy backboard substrate and repairs glue and preparation method thereof, wherein, solar energy backboard substrate cracking repairs glue, it is formed by the material combination of following weight: 15-20 parts of natural rubber, 7-10 parts of diatomite, 4-6 parts of graphene powder, 1.3-2.2 the titanium dioxide of part, 0.5-0.8 parts of promotor, 0.8-1.2 parts of silicon carbide, 0.2-0.5 parts of anti-aging agent, 30-40 parts of polyester matrix resin, 30-40 parts of acrylate monomer, the 5 of 25-30 parts, 6- benzo -2- methylene -1, 3- cyclic heptane dioxide, wherein, polyester matrix resin is prepared by the raw material of following weight: the cycloaliphatic diols of 27-33 parts of saturated dicarboxylic acid and 35-40 part.The minute crack occurred on solar energy backboard is repaired using reparation glue product of the invention, can be improved the integral strength of backboard, there is good weather resistance, can effectively extend the service life of backboard.)

1. a kind of solar energy backboard substrate cracking repairs glue, which is characterized in that formed by the material combination of following weight: 15-20 parts of natural rubber, 7-10 parts of diatomite, 4-6 parts of graphene powder, 1.3-2.2 parts of titanium dioxide, 0.5- 0.8 part of promotor, 0.8-1.2 parts of silicon carbide, 0.2-0.5 parts of anti-aging agent, 30-40 parts of polyester matrix resin, 30-40 The acrylate monomer, 25-30 parts of 5,6- benzo -2- methylene 1,3-cyclic heptane dioxide of part, wherein polyester matrix resin It is prepared by the raw material of following weight: the alicyclic binary of 27-33 parts of saturated dicarboxylic acid and 35-40 part Alcohol.

2. a kind of solar energy backboard substrate cracking according to claim 1 repairs glue, which is characterized in that the saturation binary Carboxylic acid uses one or more of malonic acid, adipic acid, azelaic acid, decanedioic acid, 1,4 cyclohexanedicarboxylic acid composition.

3. a kind of solar energy backboard substrate cracking according to claim 1 repairs glue, which is characterized in that described alicyclic two First alcohol uses one of 1,4 cyclohexane dimethanol, cyclohexanediol, 12 carbon dimethanol of tricyclic, 12 carbon naphthene glycol or two Kind combination of the above object.

4. a kind of solar energy backboard substrate cracking according to claim 1 repairs glue, which is characterized in that by following specific weight The material combination of amount part proportion forms: 15 parts of natural rubber, 7 parts of diatomite, 4 parts of graphene powder, 1.3 parts of dioxy Change titanium, 0.5 part of promotor, 0.8 part of silicon carbide, 0.2 part of anti-aging agent, 30 parts of polyester matrix resin, 30 parts of propylene Acid ester monomer, 25 parts of 5,6- benzo -2- methylene 1,3-cyclic heptane dioxide, wherein polyester matrix resin is by following parts by weight The raw material of proportion is prepared: 27 parts of saturated dicarboxylic acid and 35 parts of cycloaliphatic diols.

5. a kind of solar energy backboard substrate cracking according to claim 1 repairs glue, which is characterized in that by following specific weight The material combination of amount part proportion forms: 20 parts of natural rubber, 10 parts of diatomite, 6 parts of graphene powder, the two of 2.2 parts Titanium oxide, 0.8 part of promotor, 1.2 parts of silicon carbide, 0.5 part of anti-aging agent, 40 parts of polyester matrix resin, the third of 40 parts Olefin(e) acid ester monomer, 30 parts of 5,6- benzo -2- methylene 1,3-cyclic heptane dioxide, wherein polyester matrix resin is by following weight The raw material of part proportion is prepared: 33 parts of saturated dicarboxylic acid and 40 parts of cycloaliphatic diols.

6. a kind of solar energy backboard substrate cracking according to claim 1 repairs glue, which is characterized in that by following specific weight The material combination of amount part proportion forms: 18 parts of natural rubber, 9 parts of diatomite, 5 parts of graphene powder, 1.7 parts of dioxy Change titanium, 0.7 part of promotor, 1.1 parts of silicon carbide, 0.3 part of anti-aging agent, 35 parts of polyester matrix resin, 35 parts of propylene Acid ester monomer, 28 parts of 5,6- benzo -2- methylene 1,3-cyclic heptane dioxide, wherein polyester matrix resin is by following parts by weight The raw material of proportion is prepared: 30 parts of saturated dicarboxylic acid and 37 parts of cycloaliphatic diols.

7. the preparation method that a kind of solar energy backboard substrate cracking repairs glue, which comprises the steps of:

S1, it will be reacted in saturated dicarboxylic acid and cycloaliphatic diols investment reaction kettle according to the ratio, polyester base be prepared Body resin；

S2, according to the ratio by acrylate monomer and 5,6- benzo -2- methylene 1,3-cyclic heptane dioxide is put into reaction kettle, into Row free radicals copolymerization reaction, is prepared modified polyester resin；

S3, according to the ratio by natural rubber, diatomite, graphene powder and titanium dioxide be added reaction kettle in, be heated to 55-60 DEG C, it is stirred reaction 30-40min；

S4, polyester matrix resin, modified polyester resin and promotor be added in the reaction kettle in step S3 according to the ratio, stirred Mixing 20-25min is mixed, whipping temp is 50-55 DEG C；

S5, silicon carbide and anti-aging agent be added in the reaction kettle in step S4 according to the ratio, be stirred 15-20min, whipping temp It is 45-50 DEG C, is made and repairs glue product.

8. the preparation method that a kind of solar energy backboard substrate cracking according to claim 7 repairs glue, which is characterized in that institute State step S1's method particularly includes: will react in saturated dicarboxylic acid and cycloaliphatic diols investment reaction kettle, reaction temperature Degree is 220-240 DEG C, after reaction sufficiently, is warming up to 250-270 DEG C, keeps 10-20min, then, under vacuum conditions, is carried out Polycondensation is depressurized, to get polyester matrix resin after the completion of polycondensation.

Technical field

The present invention relates to solar energy backboard recovery technique field, specifically a kind of solar energy backboard substrate cracking repair glue and Preparation method.

Background technique

Single solar cell cannot directly do power supply use.Make power supply must by several single battery series and parallels connect and Tightly it is packaged into component.Photovoltaic module (being also solar panel) is the core in solar power system, and too Most important part in positive energy electricity generation system.Its effect is to convert solar energy into electrical energy, and be sent in battery and store, Or push loaded work piece.

In photovoltaic module, backside protective sheet (backboard) is set usually on the surface opposite with the surface that sunlight irradiates To protect solar battery cell, and require backboard that there are various excellent physical properties, such as weatherability, water-resistance, heat-resisting Property, moisture barrier and barrier properties for gases, the long-term behaviour degeneration of solar battery is suppressed to minimum.Backboard is most Using " sandwich " structure, i.e. three-layer thin-film structure, bonded between each layer using one layer of bonded adhesives.

In the long-term use process, backboard is directly influenced by ultraviolet, dust storm, dramatic temperature change, and is most held Easily there is one of material of problem of aging.When minute crack occurs in solar energy backboard, if repaired not in time, it may appear that bigger Deeper crackle is easy to happen the hidden danger such as local electric leakage, fire.And it is repaired using commercially available solar energy backboard glue, it is difficult to Reach repairing effect well, the backboard integral strength after reparation is lower and weatherability is poor, does not grow using the time.

Summary of the invention

It cracks the purpose of the present invention is to provide a kind of solar energy backboard substrate and repairs glue and preparation method thereof, on solving State the problem of proposing in background technique.

To achieve the above object, the invention provides the following technical scheme:

A kind of solar energy backboard substrate cracking reparation glue, is formed: 15-20 parts by the material combination of following weight Natural rubber, 7-10 parts of diatomite, 4-6 parts of graphene powder, 1.3-2.2 parts of titanium dioxide, 0.5-0.8 parts of promotion Agent, 0.8-1.2 parts of silicon carbide, 0.2-0.5 parts of anti-aging agent, 30-40 parts of polyester matrix resin, 30-40 parts of acrylic acid Ester monomer, 25-30 parts of 5,6- benzo -2- methylene 1,3-cyclic heptane dioxide, wherein polyester matrix resin is by following weight The raw material of part proportion is prepared: the cycloaliphatic diols of 27-33 parts of saturated dicarboxylic acid and 35-40 part.

As a further solution of the present invention: the saturated dicarboxylic acid uses malonic acid, adipic acid, azelaic acid, the last of the ten Heavenly stems two One or more of acid, 1,4 cyclohexanedicarboxylic acid composition.

As a further solution of the present invention: the cycloaliphatic diols using 1,4 cyclohexane dimethanol, cyclohexanediol, One or more of 12 carbon dimethanol of tricyclic, 12 carbon naphthene glycol composition.

As a further solution of the present invention: being formed by the material combination of following specific weight: 15 parts natural Rubber, 7 parts of diatomite, 4 parts of graphene powder, 1.3 parts of titanium dioxide, 0.5 part of promotor, 0.8 part of silicon carbide, 0.2 part of anti-aging agent, 30 parts of polyester matrix resin, 30 parts of acrylate monomer, 25 parts of 5,6- benzo -2- methylene - 1,3- cyclic heptane dioxide, wherein polyester matrix resin is prepared by the raw material of following weight: 27 parts of saturation binary Carboxylic acid and 35 parts of cycloaliphatic diols.

As a further solution of the present invention: being formed by the material combination of following specific weight: 20 parts natural Rubber, 10 parts of diatomite, 6 parts of graphene powder, 2.2 parts of titanium dioxide, 0.8 part of promotor, 1.2 parts of carbonization Silicon, 0.5 part of anti-aging agent, 40 parts of polyester matrix resin, 40 parts of acrylate monomer, 30 parts of 5,6- benzo -2- methylene Base -1,3- cyclic heptane dioxide, wherein polyester matrix resin is prepared by the raw material of following weight: 33 parts of saturation Dicarboxylic acids and 40 parts of cycloaliphatic diols.

As a further solution of the present invention: being formed by the material combination of following specific weight: 18 parts natural Rubber, 9 parts of diatomite, 5 parts of graphene powder, 1.7 parts of titanium dioxide, 0.7 part of promotor, 1.1 parts of silicon carbide, 0.3 part of anti-aging agent, 35 parts of polyester matrix resin, 35 parts of acrylate monomer, 28 parts of 5,6- benzo -2- methylene - 1,3- cyclic heptane dioxide, wherein polyester matrix resin is prepared by the raw material of following weight: 30 parts of saturation binary Carboxylic acid and 37 parts of cycloaliphatic diols.

A kind of solar energy backboard substrate cracking repairs the preparation method of glue, includes the following steps:

S1, it will react, be prepared poly- in saturated dicarboxylic acid and cycloaliphatic diols investment reaction kettle according to the ratio Ester matrix resin；

S2, acrylate monomer and 5,6- benzo -2- methylene -1,3- cyclic heptane dioxide put into reaction kettle according to the ratio In, free radicals copolymerization reaction is carried out, modified polyester resin is prepared；

S3, according to the ratio will natural rubber, diatomite, graphene powder and titanium dioxide be added reaction kettle in, heating rise Temperature is stirred reaction 30-40min to 55-60 DEG C；

S4, the reaction kettle being according to the ratio added to polyester matrix resin, modified polyester resin and promotor in step S3 In, it is stirred 20-25min, whipping temp is 50-55 DEG C；

S5, silicon carbide and anti-aging agent be added in the reaction kettle in step S4 according to the ratio, be stirred 15-20min, stir Temperature is 45-50 DEG C, is made and repairs glue product.

As a further solution of the present invention: the step S1's method particularly includes: by saturated dicarboxylic acid and alicyclic It is reacted in dihydric alcohol investment reaction kettle, reaction temperature is 220-240 DEG C, after reaction sufficiently, is warming up to 250-270 DEG C, protects 10-20min is held, then, under vacuum conditions, decompression polycondensation is carried out, to get polyester matrix resin after the completion of polycondensation.

Compared with prior art, the beneficial effects of the present invention are: reparation glue product of the invention is by natural rubber, diatom Soil, graphene powder, titanium dioxide, promotor, silicon carbide, anti-aging agent, polyester matrix resin, acrylate monomer and 5,6- Benzo -2- methylene 1,3-cyclic heptane dioxide is prepared, and has good environment resistant erosiveness, insulating capacity, solidification speed Spend the characteristics such as fast；The minute crack occurred on solar energy backboard is repaired using reparation glue product of the invention, Neng Gouti The integral strength of high backboard has good weather resistance, can effectively extend the service life of backboard.

Specific embodiment

The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects It encloses.