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Ageing resistant type solar photovoltaic component sealing material and preparation method thereof

A solar photovoltaic and sealing material technology, which is applied in the field of room temperature vulcanized silicone sealing materials and its preparation, can solve the problems of no specific investigation on the UV aging resistance of sealants, and achieve excellent UV aging resistance, simple process, and strong adhesion Good results

Active Publication Date: 2015-01-14
ZHEJIANG XINAN CHEM INDAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The patent with application publication number CN102268234A discloses a silicone two-component sealant for solar cell modules and its injection process. It uses an inorganic flame retardant and a light stabilizer in combination to prepare glass, aluminum, and backsheet materials. Photovoltaic module sealant with good adhesion and yellowing resistance of the colloid, but there is no specific investigation on the UV aging resistance of the sealant

Method used

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  • Ageing resistant type solar photovoltaic component sealing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Use hydroxyl-terminated polydimethylsiloxane with a viscosity of 10000mPa·s and dimethyl silicone oil with a viscosity of 350mPa·s, the components of which are as follows:

[0039] components

Dosage

Hydroxy-terminated polydimethylsiloxane

100

Simethicone

8

calcium carbonate

70

Aluminum oxide

20

Fumed silica

5

calcium chloride

2

2-Hydroxy-4-n-octyloxybenzophenone

2

Light Stabilizer 770

8

Methyltributanoximinosilane

3

Vinyl tributylketoxime silane

7

γ-Glycidyl etheroxypropyl trimethoxysilane

1

γ-Aminopropyltrimethoxysilane

1

stannous octoate

0.2

[0040] First disperse 2-hydroxy-4-n-octyloxybenzophenone and light stabilizer 770 in an appropriate amount of hydroxyl-terminated polydimethylsiloxane according to the ratio, and vacuum treat it in a kneader at 80-120°C for 1 After ~2 hours, the temperature was lowered ...

Embodiment 2

[0043] The selected viscosity is hydroxyl-terminated polydimethylsiloxane with a viscosity of 20000mPa·s, and dimethyl silicone oil with a viscosity of 1000mPa·s, and its components are as follows:

[0044] components

[0045] According to the method described in the above-mentioned Example 1, an aging-resistant solar photovoltaic module sealing material was prepared.

Embodiment 3

[0047] The selected viscosity is hydroxyl-terminated polydimethylsiloxane with a viscosity of 80000mPa·s, and dimethyl silicone oil with a viscosity of 350mPa·s, and its components are as follows:

[0048] components

[0049] Silazane

[0050]According to the method described in the above-mentioned embodiment 1, an aging-resistant sealing material for solar photovoltaic modules was prepared.

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Abstract

The invention discloses an ageing resistant type solar photovoltaic component sealing material and a preparation method thereof. The ageing resistant type solar photovoltaic component sealing material comprises the following components in parts by weight: 100 parts of poly organic siloxane, 5-20 parts of a plasticizer, 50-150 parts of a filler, 0.2-5 parts of a water absorbent, 1-10 parts of paste containing an ultraviolet light absorber, 1-15 parts of a crosslinking agent, 0.1-5 parts of a viscosity thickening agent and 0.1-1 part of a catalyst. The ageing resistant type solar photovoltaic component sealing material has the advantages that the paste containing the ultraviolet light absorber is added in the components, so that the obtained product is reduced by less than 5% in mechanical property after an ultraviolet aging test is carried out, has good bonding force with an aluminium frame of a photovoltaic cell and is non-corrosive to an EVA (ethylene vinyl acetate copolymer) adhesive film and a battery circuit; and the provided preparation method is simple in technology, equipment requirement is not harsh, and the technical effects of good ultraviolet ageing resistance and high curing speed of a one-component solar cell module sealant are realized.

Description

technical field [0001] The invention relates to an aging-resistant solar photovoltaic component sealing material and a preparation method thereof. The invention specifically relates to a room temperature vulcanization (RTV) organosilicon sealing material with good aging resistance, high bonding strength, good sealing and bonding performance, high storage stability and strong elastic expansion and contraction ability and a preparation method thereof. Background technique [0002] Silicone sealant is an indispensable and important auxiliary material in solar photovoltaic modules, and is used to bond frames and junction boxes. Solar photovoltaic modules are directly exposed to the outside world, which puts forward higher performance requirements for photovoltaic module sealants: good weather resistance; able to withstand the test of high and low temperature environments; moisture-proof and environmental corrosion resistance; good bonding performance ; Mechanical shock and eart...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J11/04C09J11/06C09K3/10H01L31/048
CPCY02E10/50
Inventor 王伟徐晓明王轲金红军邵月刚佘慧玲
Owner ZHEJIANG XINAN CHEM INDAL GROUP
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