A kind of UV/heat dual-curing adhesive for solar photovoltaic backplane and preparation method thereof

A solar photovoltaic and dual-curing technology, applied in polyurea/polyurethane adhesives, adhesive types, adhesives, etc., can solve problems such as irregular shapes of cured objects, shadows that cannot be cured, and insufficient curing depth to avoid volatilization and heat energy consumption, strong resistance to environmental erosion, and excellent comprehensive performance

Active Publication Date: 2022-03-29
CHANGZHOU HUAKE POLYMERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, light-curing adhesives also have some inherent disadvantages, such as insufficient curing depth, inability to cure shadow parts, and limited application when the cured object has irregular shapes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A solar photovoltaic backplane is combined by a combination of the following weight part ratios: 50 parts of the branch modified polyester acrylate, 5 parts of polycarbonate binary Alcohol, 5 parts of super branched tackifying resin, 35 parts of active diluent, 2 parts of isocyanate compound, 2 parts of photoinitiator, 0.001 parts of gel catalyst and 1 part of the auxiliary agent, where the branched type The modified polyester acrylate was prepared from the following weight equipped raw materials: 28 parts of an aliphatic polymer, 26 aromatic dibasic acid, 23 parts of an aliphatic diol, 10 lipid? Dimethanol, 6 parts of branching monomer, 7 parts of acrylic monomer, 0.02 parts of catalyst and 0.2 parts of the polymerization agent.

[0025] Among them, the gel catalyst uses dibutyl tin folkonurate. The isocyanate compound adopts German Bayer N3390.

[0026] Method for preparing solar photovoltaic backplane with UV / thermo-cured adhesive, including the steps of:

[0027] S1, ...

Embodiment 2

[0032] A solar photovoltaic back plate with UV / thermal dual cured adhesive, specifically combined by the following weight part ratio of raw material: 58 parts of branch-type modified polyester acrylate, 4 parts of polycarbonate binary Alcohol, 4 parts of superbranched tackifying resin, 27 parts of active diluent, 4 parts of isocyanate compound, 1.9 parts of photoinitiator, 0.001 parts of gel catalyst and 1 parts, where the branching The modified polyester acrylate was prepared from the following weight component ratios: 25 parts of an aliphatic polymer acid, 30 parts of an aromatic dibasic acid, 20 parts of an aliphatic diol, 12 lipid? Dimetions, 6 parts of branched monomers, 7 parts of methacrylic monomer, 0.02 parts of catalyst and 0.2 parts of the polymerization agent. Among them, the gel catalyst uses octanoate. The isocyanate compound adopts Kissaki N3300.

[0033] Method for preparing solar photovoltaic backplane with UV / thermo-cured adhesive, including the steps of:

[...

Embodiment 3

[0039] A solar photovoltaic backplane with UV / thermal double curing adhesive, which is specifically combined by the following weight component ratios: 66 parts of the branch modified polyester acrylate, 2 parts of polycarbonate binary Alcohol, 2 parts of super branched tackifying resin, 23 parts of active diluent, 4 parts of isocyanate compound, 2 parts of photoinitiator, 0.001 parts of gel catalyst and 1 part, where the branching type The modified polyester acrylate was prepared from the following weight equipped raw materials: 20 parts of an aliphatic polycycle, 32 pieces of aromatic dibasic acid, 25 parts of aliphatic diol, 9 parts of the alicyclic group Diffegant, 6 parts of branched monomers, 7 parts of acrylic monomers, 0.02 parts of catalysts and 1 parts of the polymerization agent.

[0040] Among them, the gel catalyst uses a mixture of dibutyltin and dialkyl tin two maleate. The isocyanate compound adopts Kissaki N3300.

[0041] Method for preparing solar photovoltaic b...

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PUM

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Abstract

The invention relates to a UV / heat dual-curing adhesive for solar photovoltaic backplanes and a preparation method thereof, wherein the UV / heat dual-cure adhesive for solar photovoltaic backplanes is composed of the following raw materials in proportions by weight: 50-70 parts of branched modified polyester acrylate, 1-5 parts of polycarbonate diol, 1-5 parts of hyperbranched tackifying resin, 20-40 parts of reactive diluent, 1-5 parts 5 parts of multifunctional isocyanate compound, 0.1-2 parts of photoinitiator, 0.001 part of gel catalyst and 1-2 parts of auxiliary agent. The UV / heat dual-curing adhesive for solar photovoltaic backplanes prepared by the present invention has the characteristics of low curing shrinkage rate, low expansion coefficient, and no precipitation. Further curing at low temperature. The product prepared by the invention is suitable for interlayer bonding of solar photovoltaic backplanes, has good bonding strength and environmental erosion resistance, and has effectively improved weather resistance and aging resistance.

Description

Technical field [0001] The present invention relates to the field of adhesive techniques, and more particularly to a UV / thermal dual-cured binder for solar photovoltaic backplane and a preparation method thereof. Background technique [0002] In the photovoltaic module, the solar photovoltaic backplane is typically provided to protect the long-term performance of the solar cell unit, which requires a long time to have excellent weather resistance, heat resistance, hydrolysis, and moisture barrier resistance. Most of the common photovoltaic backplanes use the "sandwich" structure, that is, a fluorine / PET / fluorine film three-layer film structure, and a layer of adhesive is adopted between the films, so the properties of the adhesive have a key to the backplane. The role directly affects the life of the backplane and even components. [0003] The interlayer bonding of solar photovoltaic backplanes is usually accomplished using a solvent-type adhesive, a molten curable adhesive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J167/06C09J175/04H01L31/048
CPCC09J167/06H01L31/0481C08L2205/03C08L2201/08C08L2203/204C08L75/04Y02E10/50
Inventor 赵银蒋红娟王炳珅周锋杨子
Owner CHANGZHOU HUAKE POLYMERS
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