Insulation adhesive material for compound photovoltaic backsheet and application

A photovoltaic backplane, composite technology, used in adhesives, photovoltaic power generation, adhesive types, etc., can solve the problems of less adhesive reliability research and few adhesive materials, etc., to achieve long-term reliability guarantee, cohesion The effect of high energy and not easy internal fracture

Active Publication Date: 2017-11-17
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There are many reports on composite photovoltaic backplanes, most of which focus on the material matching and functionality of each layer in the backplane structure, such as patents such as CN104494266A, CN104512082A, CN205069653U, CN104842616A, CN101350370A, CN102208465A, CN104494263A and other patents, which involve adhesive materials. Few, even fewer studies on the reliability of adhesives

Method used

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  • Insulation adhesive material for compound photovoltaic backsheet and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (1) Preparation of insulating adhesive:

[0060]In an inert gas atmosphere reactor, slowly add weighed polyols while stirring at 150°C, including 520.75g of neopentyl glycol (Jinggang Chemical Co., Ltd.), 104.15g of 1,5-pentanediol ( Jinggang Chemical Co., Ltd.), 73.12g of 1,8-octanediol (Lisheng Chemical Co., Ltd.). 332.26g of phthalic acid (Baiqian Chemical Co., Ltd.), 99.03g of lauric acid (Jinyu Chemical Co., Ltd.) and 0.18g of catalyst tetra-n-butyl titanate (Hongming Chemical Reagent Co., Ltd.) are slowly added to the reactor Medium; with a heating rate of 5°C / hour, the temperature was raised to 180°C; at a heating rate of 2°C / hour, the temperature was slowly raised to 230°C, and the reaction was kept for 26 hours; 0.18g of catalyst tetra-n-butyl titanate (Hongming Chemical Reagent Co., Ltd.) into the reaction kettle, turn on the vacuum pump, keep the vacuum at -0.1MPa and evacuate for 10 hours, then stop heating and evacuate, and naturally cool to 140°C while st...

Embodiment 2

[0065] (1) Preparation of insulating adhesive:

[0066] In an inert gas atmosphere reaction kettle, slowly add weighed polyols while stirring at 100°C, including 520.75g of pentaerythyl glycol (Jinggang Chemical Co., Ltd.), 67.09g of 2-ethyl-2-hydroxy Methyl-1,3-propanediol (Mingcheng Chemical Co., Ltd.), 120.15g of 2-methyl-2-hydroxymethyl-1,3-propanediol (Mingcheng Chemical Co., Ltd.), 152.18g of 1,3- Propylene glycol (Guangfeng Chemical Co., Ltd.), after being incubated for 60 minutes, the polybasic acid comprises 664.52g of terephthalic acid (Baiqian Chemical Co., Ltd.), 155.51g of sebacic acid (Jinyu Chemical Co., Ltd.), 132.12g Methylsuccinic acid and 9.06g of catalyst monobutyltin oxide (Huansi Chemical Co., Ltd.) are slowly added to the reactor; with a heating rate of 15°C / hour, the temperature is raised to 200°C; Speed, slowly heat up to 260°C, heat preservation reaction for 20 hours; add 0.09g of catalyst monobutyltin oxide (Huansi Chemical Co., Ltd.) into the react...

Embodiment 3

[0071] (1) Preparation of insulating adhesive:

[0072] In an inert gas atmosphere reactor, slowly add weighed polyols while stirring at 140°C, including 520.75g of neopentyl glycol (Jinggang Chemical Co., Ltd.), 354.51g of 1,6-hexanediol ( Guangfeng Chemical Co., Ltd.), 40.25g of 2-ethyl-2-hydroxymethyl-1,3-propanediol (Mingcheng Chemical Co., Ltd.), after 40 minutes of heat preservation, the polybasic acid containing 664.52g of ortho-benzene Diformic acid (Baiqian Chemical Co., Ltd.), 332.26g of terephthalic acid (Baiqian Chemical Co., Ltd.), 141.58g of sebacic acid (Haili Chemical Co., Ltd.), 164.60g of glutaric acid (Haili Chemical Co., Ltd. Co., Ltd.) and 6.09g of catalyst antimony trioxide (Shanghai Xindian Chemical Materials Co., Ltd.) were slowly added to the reactor; at a heating rate of 10 °C / hour, the temperature was raised to 170 °C; Heating rate: slowly raise the temperature to 240°C, and keep the temperature for 23 hours; weigh 5.89g of catalyst antimony trioxid...

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Abstract

The invention discloses an insulation adhesive material for a compound photovoltaic backsheet and application. The insulation adhesive material is composed of a component A and a component B. The component A contains matrix resin, assistant resin and an assistant, wherein the matrix resin is hydroxyl polyester resin, which has a hydroxyl value of 5-30mgKOH / g, an acid value of 0.2-5mgKOH / g, a number-average molecular weight of 5000-50000, a glass transition temperature ranging from -40DEG C to 30DEG C, and is prepared by esterification polycondensation reaction of small molecular polyprotic acid and polyol under inert gas protection. The component B is a crosslinked component. During use, the component A and the component B are mixed in different proportions according to requirements. The insulation adhesive material provided by the invention not only has long-term and stable bonding performance, but also has excellent performance in heat resistance, insulation and weatherability, and can be used for preparation of high weather resistant compound photovoltaic backsheets. Also, the raw materials are easily available, the process is controllable, and the operation is simple.

Description

technical field [0001] The invention relates to the field of composite adhesive materials, in particular to an insulating adhesive material for composite photovoltaic backplanes and its application. Background technique [0002] Photovoltaic is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. There are two modes of independent operation and grid-connected operation. Due to the long service life of solar cells, compared with thermal power generation and nuclear power generation, solar cells will not cause environmental pollution, and the international demand for solar photovoltaic cells is increasing. By the end of 2016, the total installed photovoltaic capacity in the world reached 300GW. Among them, in 2016, the newly installed photovoltaic capacity in the world was 70GW, an increase of about 30% compared with 2015, which became a milestone in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J175/06C09J163/00C08G18/40C08G18/42C08G18/44C08G18/48C08G18/62H01L31/048H01L31/049
CPCC08G18/4018C08G18/4202C08G18/4211C08G18/4216C08G18/4238C08G18/4277C08G18/44C08G18/4854C08G18/6208C08L2201/08C08L2205/03C09J175/04C09J175/06H01L31/0481H01L31/049C08L63/00Y02E10/50
Inventor 林维红邓伟梅云宵卢稳周光大林建华
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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