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Bi-component room temperature vulcanized silicone rubber for environment-friendly sprayable photovoltaic module

A photovoltaic module, room temperature vulcanization technology, applied in photovoltaic power generation, adhesives, electrical components and other directions, can solve the problems of poor flame retardant performance and environmental protection performance, poor weather resistance, long curing time, etc., to achieve outstanding substantive characteristics, improve Flame retardant performance and high temperature heat aging resistance, the effect of saving consumption

Active Publication Date: 2015-05-20
ANHUI ZHONGYI RUBBER BELTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the first aspect of the present invention provides an environmentally friendly and sprayable two-component room temperature vulcanized silicone rubber for photovoltaic modules, which solves the problems of long curing time and weather resistance in the room temperature vulcanized silicone rubber of the prior art. Poor performance, short service life, poor flame retardancy and environmental performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In parts by weight, 100 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 2000 mPa.s, 120 parts of nano-aluminum hydroxide, 6 parts of MQ silicone resin, 4 parts of diphenylmethane diisocyanate, 60 parts Methyl silicone oil with a viscosity of 100mPa.s was sequentially added to a high-speed disperser and mixed for 60 minutes. After mixing evenly, it was ground three times by a three-roller mill, and then defoamed for 70 minutes at a temperature of 110°C and a vacuum of 0.06MPa. Make component A, fill it into a container with a certain capacity; mix 20 parts of silazane oligomer (KH-CL), 10 parts of tetraethyl orthosilicate, 6 parts of dibutyltin diacetate, and 30 parts with a viscosity of 25 mPa.s of hydroxyl silicone oil and 8 parts of glycidyloxyalkyltrialkoxysilane were sequentially added to a high-speed disperser and mixed for 30 minutes. After mixing evenly, they were ground three times by a three-roll mill, and then vacuumed at a vacuum of 0.06M...

Embodiment 2

[0035] In parts by weight, 100 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 2200 mPa.s, 40 parts of nano-calcium carbonate, 50 parts of nano-magnesium hydroxide, 30 parts of zinc borate, 4 parts of MQ silicone resin, 2 parts of diphenylmethane diisocyanate, 4 parts of epoxy resin, and 80 parts of phenyl silicone oil with a viscosity of 200mPa.s were successively added to a high-speed disperser and mixed for 70 minutes. Degassing for 60 minutes at a temperature of 115°C and a vacuum of 0.07MPa to make component A and fill it into a container with a certain capacity; mix 20 parts of silazane oligomer (KH-CL), 10 parts of silicon Propyl acetate, 10 parts of methyltriethoxysilane, 3 parts of stannous octoate, 2 parts of di-n-butylamine, 2 parts of n-butyl titanate, 50 parts of hydroxyl silicone oil with a viscosity of 30mPa.s, 5 parts of glycidol Trimethoxysilane and 5 parts of 3-glycidyl etheroxypropylmethyldiethoxysilane were sequentially added to a high...

Embodiment 3

[0038]In parts by weight, 100 parts of hydroxyl-terminated polydimethylsiloxane with a viscosity of 2500 mPa.s, 30 parts of nano calcium carbonate, 50 parts of nano aluminum hydroxide, 40 parts of zinc borate, 6 parts of MQ silicone resin, Add 4 parts of epoxy resin, 50 parts of methyl silicone oil with a viscosity of 100 mPa.s, and 50 parts of phenyl silicone oil with a viscosity of 400 mPa.s into a high-speed disperser and mix for 80 minutes. After mixing evenly, grind it three times with a three-roll mill , and then defoamed for 70 minutes at a temperature of 120°C and a vacuum of 0.08MPa to make component A, which was filled into a container with a certain capacity; 15 parts of silazane oligomer (KH-CL), 8 Parts of ethyl orthosilicate, 8 parts of phenyltrimethoxysilane, 6 parts of dibutyltin diacetate, 2 parts of di-n-butylamine, 2 parts of isopropyl titanate, 60 parts of hydroxyl silicone oil with a viscosity of 40mPa.s, 5 parts Parts of glycidyloxyalkyltrialkoxysilane, 2...

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Abstract

The invention discloses a bi-component room temperature vulcanized silicone rubber for an environment-friendly sprayable photovoltaic module and a preparation method thereof, solving the problems that the prior art has poor weather resistance, short service life and poor flame retardance and environment friendliness. The bi-component room temperature vulcanized silicone rubber is characterized in that a component A comprises hydroxy-terminated polydimethylsiloxane, a flame retardant reinforcing agent, a reinforcing modifying agent and a plasticizing diluting agent; a component B comprises a crosslinking agent, a catalyst, a catalyst carrier and an adhesion accelerant; the components A and B are mixed uniformly according to the weight ratio of 100:(8-12). The bi-component room temperature vulcanized silicone rubber and the preparation method have the substantial characteristics and obvious progresses that the room temperature bonding strength can exceed 2MPa without treatment with primers, and the silicone rubber does not corrode the metal surfaces or pollute the working environments; the breaking strength and bonding strength of the sealant are respectively increased by 15% and 12%; the sprayability of the photovoltaic module is achieved, the room temperature curing time is shortened, the usage of the solar cell sealant is reduced, and the assembly efficiency is improved; the flame retardance and high temperature and thermal aging resistance of the sealant are improved while improving the breaking strength and the bonding strength.

Description

technical field [0001] The invention relates to the technical field of rubber sealing materials, in particular to an environmentally friendly and sprayable two-component room temperature vulcanized silicone rubber for photovoltaic modules and a preparation method thereof. Background technique [0002] Solar panels (photovoltaic modules) referred to as PV modules are one of the core components of solar photovoltaic power generation systems. formed between. If the crystalline silicon cell is directly exposed to the atmosphere and is affected by weather factors such as light, heat, rain, and snow, the conversion efficiency and service life of the crystalline silicon cell will be greatly reduced. Therefore, an important part of the appropriate packaging system is the packaging material (sealant, commonly known as silver paste), which can play the role of structural support, optical matching, electrical isolation protection and heat conduction. The main glue points of photovolt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C09J11/04C09J11/08C09J11/06H01L31/048
CPCY02E10/50
Inventor 宋长江袁陆海魏雪梅宋鑫吕继明王从开周震宇李朝红
Owner ANHUI ZHONGYI RUBBER BELTS