Bi-component composite adhesive for solar power back panel, and preparation method thereof

A technology for composite adhesives and solar backsheets, which is applied in the field of two-component polyurethane adhesives, two-component composite polyurethane adhesives and their preparation, and can solve the problem of reduced mechanical properties and thermal stability of adhesives, limited hydrolysis resistance, and adhesive viscosity. Advanced problems, to achieve the effect of improving the curing reaction speed, good hydrolysis resistance, and good UV resistance

A technology for composite adhesives and solar backsheets, which is applied in the field of two-component polyurethane adhesives, two-component composite polyurethane adhesives and their preparation, and can solve the problem of reduced mechanical properties and thermal stability of adhesives, limited hydrolysis resistance, and adhesive viscosity. Advanced problems, to achieve the effect of improving the curing reaction speed, good hydrolysis resistance, and good UV resistance

CN104804698AInactive Publication Date: 2015-07-29WUHAN DIAPH TECH CO LTD
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  • Bi-component composite adhesive for solar power back panel, and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A two-component composite adhesive for solar back sheets described in this embodiment is composed of A component and B component, wherein, A component is made of the following raw material components in parts by weight: 8 kg of dipropylene glycol, Neopentyl glycol monohydroxypivalate 19.5 kg, 2,4-diethyl-1,5-pentanediol 23 kg, terephthalic acid 12 kg, phthalic anhydride 19 kg, 1,12-lauric acid 18.5 kg Kg, 54.6 kg of ethyl acetate, 1.3 g of dibutyltin dilaurate, 1.6 kg of anti-hydrolysis stabilizer polycarbodiimide STABAXOL P200; component B is HDI trimer; weight of components A and B The ratio is 15:1.

[0026] The preparation method of the above-mentioned two-component composite adhesive for solar backsheets comprises the following steps:

[0027] (1) Preparation of component A:

[0028] Accurately weigh each raw material according to the above-mentioned parts by weight, and put dipropylene glycol, hydroxypivalic acid neopentyl glycol monoester, and 2,4-diethyl-1,5-p...

Embodiment 2

[0033] A two-component composite adhesive for solar back sheets described in this embodiment is composed of component A and component B, wherein component A is made of the following raw material components in parts by weight: 13 kg of dipropylene glycol, Hydroxypivalic acid neopentyl glycol monoester 15 kg, 2,4-diethyl-1,5-pentanediol 22.5 kg, terephthalic acid 10 kg, phthalic anhydride 20 kg, 1,12-lauric acid 19.5 kg Kilogram, 54. 6kg ethyl acetate, 1.6 grams of dibutyltin dilaurate, 2 kilograms of anti-hydrolysis stabilizer polycarbodiimide STABAXOL P200; B component is HDI trimer; the weight ratio of A component to B component It is 15:1.

[0034]The preparation method of the above-mentioned two-component composite adhesive for solar backsheets comprises the following steps:

[0035] (1) Preparation of component A:

[0036] Accurately weigh each raw material according to the above-mentioned parts by weight, and put dipropylene glycol, hydroxypivalic acid neopentyl glycol ...

Embodiment 3

[0040] A two-component composite adhesive for solar back sheets described in this embodiment is composed of component A and component B, wherein component A is made of the following raw material components in parts by weight: 10 kg of dipropylene glycol, Hydroxypivalic acid neopentyl glycol monoester 25 kg, 2,4-diethyl-1,5-pentanediol 15.5 kg, terephthalic acid 10 kg, phthalic anhydride 17 kg, 1,12-lauric acid 22.5 kg Kilogram, 54.6 kilograms of ethyl acetate, 3.2 grams of dibutyltin dilaurate, 2.5 kilograms of anti-hydrolysis stabilizer polycarbodiimide STABAXOL P200; B component is HDI trimer; The weight ratio of A component and B component is 15:1.

[0041] The preparation method of the above-mentioned two-component composite adhesive for solar backsheets comprises the following steps:

[0042] (1) Preparation of component A:

[0043] Accurately weigh each raw material according to the above-mentioned parts by weight, and put dipropylene glycol, hydroxypivalic acid neopen...

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Abstract

The invention relates to a bi-component composite adhesive for a solar power back panel, and a preparation method thereof. The adhesive consists of a component A and a component B, wherein the component A mainly comprises dipropylene glycol, hydroxypivalyl hydroxypivalate, 2,4-diethyl-1,5-pentanediol, terephthalic acid, phthalic anhydride, 1,12-dodecanoic acid, a hydrolysis-resistant stabilizing agent, ethyl acetate and a small amount of organotin catalyst, and the component B is an aliphatic polyisocyanate curing agent; the weight ratio of the component A to the component B is (10-16): 1. According to the bi-component composite adhesive, through a simple esterification synthesis reaction, high-hydrophobicity dibasic alcohol and long-carbon-chain dibasic acid are introduced to prepare polyester polyol which is good in temperature resistance and hydrolysis resistance; through the addition of the catalyst and the hydrolysis-resistant stabilizing agent, the curing reaction speed of the adhesive is further accelerated, and the hydrolysis resistance of the cured adhesive is further improved. The composite adhesive prepared by the invention is applied to the solar power assembly back panel to endow the solar power assembly back panel with better UV resistance, hydrolysis resistance and aging resistance.

Description

technical field [0001] The invention belongs to the technical field of adhesives. Specifically, the present invention relates to a two-component polyurethane adhesive. More specifically, the present invention relates to a two-component composite polyurethane adhesive that can be used in the manufacture of solar module backplanes and its preparation method . Background technique [0002] With the increasing demand for clean energy, solar power stations have emerged in recent years, and solar modules are the basic power generation devices of solar power stations. Solar modules are mainly composed of tempered glass, EVA film, silicon cells and composite backsheet. The back sheet is located on the back of the solar cell module, which protects the cells and has reliable insulation, sealing, water resistance and aging resistance. The backsheet of solar modules generally has a three-layer structure, such as PVDF / PET / PE, in which PVDF is a fluorine-containing film as the outer pro...

Claims

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Application Information

Patent Timeline
29 Jul 2015
Publication
CN104804698A
IPC
C09J175/06; C09J11/08; C08G18/79; C08G18/42; C08G63/20; C08G63/78; C08G63/85
Inventors
黄艳刚; 李春光