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One-component flame retardant solar photovoltaic subassembly sealant and preparation method thereof

A solar photovoltaic and flame-retardant technology, applied in photovoltaic power generation, chemical instruments and methods, adhesives, etc., can solve the problems affecting the mechanical properties, electrical properties and bonding properties of sealants, and meet the requirements of simple process equipment and adhesion Good results

Active Publication Date: 2012-07-11
西卡(江苏)工业材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above explanation also objectively confirms that the reason why there is no flame-retardant solar photovoltaic module sealant so far is because if the flame retardant is improperly selected and used inappropriately, it will cause other problems, such as affecting the mechanical properties of the sealant. Properties, Electrical Properties and Adhesive Properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In parts by weight, the viscosity is 80000cps and is composed of dimethylmethoxysiloxy [(CH 3 )2 (CH 2 O)SiO 0.5 ] 100 parts of end-capped polydimethylsiloxane, 35 parts of nano-active light calcium carbonate modified by resin acid as a filler, and 150 parts of aluminum hydroxide modified by resin acid as a flame retardant are put into a kneader and stirred Keep the kneading temperature at 120°C and keep the vacuum at 0.06-0.09MPa for 90 minutes. Grind twice with a three-roller mill, then transfer to a high-speed dispersion stirring tank and cool to room temperature to obtain the base material. Next, the crosslinking agent is 4 parts of methyltrimethoxysilane, the hydroxyl scavenger is 0.5 parts of vinyltrimethoxysilane, the tackifier is 1.5 parts of aminopropyl triethoxysilane, the plasticizer is methyl silicone oil Add 20 parts and 5 parts of gas-phase white carbon black into a high-speed dispersion stirring tank, stir and mix with the base material, keep the vacuum...

Embodiment 2

[0024] In parts by weight, the viscosity is 80000cps and is composed of dimethylmethoxysiloxy [(CH 3 ) 2 (CH 2 O)SiO 0.5 ] 100 parts of end-capped polydimethylsiloxane, 15 parts of nano-active light calcium carbonate modified by silane coupling agent as filler, 20 parts of heavy calcium carbonate and flame retardant modified by silane coupling agent Put 150 parts of non-toxic magnesium hydroxide into the stirring tank of the kneader, keep the temperature at 125°C, and keep the vacuum degree at 0.06-0.09 MPa for dehydration and blending for 100 minutes, pass through the three-roller mill for 2 times, and move into the high-speed dispersion stirring tank Cool to room temperature to obtain the base material. At room temperature, add 2 parts of crosslinking agent methyltrimethoxysilane, 2 parts of ethyltrimethoxysilane, 0.2 part of hydroxyl scavenger N-cyclohexylaminemethyldiethoxysilane, Add 0.5 parts of tackifier N-(2-aminoethyl)-3-aminopropyl-trimethoxysilane, 5 parts of hyd...

Embodiment 3

[0026] In parts by weight, the viscosity is 80000cps and is composed of dimethylmethoxysiloxy [(CH 3 ) 2 (CH 2 O)SiO 0.5 ] 100 parts of end-capped polydimethylsiloxane, 40 parts of nano active light calcium carbonate, 55 parts of heavy calcium carbonate and 45 parts of flame retardant decabromodiphenyl ether are put into the kneader Stir the tank, keep the temperature at 145°C, keep the vacuum within the range of 0.06-0.09 MPa for dehydration and blending for 45 minutes, pass through the three-roller mill for two times, transfer it into the high-speed dispersion stirring tank and cool it to room temperature to obtain the base material, at room temperature 14 parts of cross-linking agent vinyltrimethoxysilane, 2.5 parts of hydroxyl scavenger N-cyclohexylaminemethyldiethoxysilane, 2.5 parts of N-cyclohexylaminemethyltriethoxysilane, tackifier ammonia propane 0.25 parts of triethoxysilane, 0.25 parts of N-(2-aminoethyl)-3-aminopropyl-methyldimethoxysilane, hydrogenated mineral...

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Abstract

The invention relates to a one-component flame retardant solar photovoltaic subassembly sealant and a preparation method thereof, belonging to the technical field of polymeric sealants. The sealant contains the following components in parts by weight of 100 parts of amodimethicone, 5 to 25 parts of plasticiser, 25 to 100 parts of stuffing, 25 to 150 parts of flame retardant, 1 to 15 parts of cross-linking agent, 0.2 to 5 parts of hydroxyl scavenger, 0.5 to 5 parts of tackifier and 0.1 to 0.5 part of catalyst, wherein the flame retardant reaches V0 level, has good adhesive attraction to photovoltaic cell glass, and causes no corrosion to an EVA (Ethylene Vinyl Acetate) glue film and cell circuits. The provided preparation method has the advantages of simple technique, low requirement on equipment, no corrosivity of reaction byproducts; and the good flame retardant effect and the high curing speed of the one-component flame retardant solar photovoltaic subassembly organosilicone sealantcan be ensured.

Description

technical field [0001] The invention belongs to the technical field of polymer sealing materials, and in particular relates to a single-component flame-retardant solar photovoltaic module sealant, and also relates to a preparation method of the sealant. Background technique [0002] The solar photovoltaic power generation industry has continued to develop rapidly since the 1980s. The so-called solar photovoltaic power generation system refers to a new type of power generation system that uses the photovoltaic effect of solar cells to directly convert solar radiation into electrical energy. Solar panels, also known as "photovoltaic modules", or PV modules for short, are one of the core parts of solar photovoltaic power generation systems. It consists of a pre-arranged array of crystalline silicon cells laminated between ultra-thin, transparent, high-strength glass and a hermetic substrate. Several groups of photovoltaic modules are installed and fixed on the frame with seala...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/04C09K3/10H01L31/048
CPCY02E10/50
Inventor 张建忠陈春浩
Owner 西卡(江苏)工业材料有限公司