Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sealant for solar photovoltaic module and preparation method of sealant

A solar photovoltaic and sealant technology, applied in the field of solar cells, can solve the problems of high production energy consumption, low production efficiency, large time consumption, etc., and achieve the effects of excellent light transmittance, improved production efficiency, and stable storage performance.

Inactive Publication Date: 2019-06-21
辽宁旭日新能源科技有限公司
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the curing temperature of sealants for solar photovoltaic modules is generally 140-145 ° C, the time is 20-30 minutes, and the degree of cross-linking is 70-90%, which means that it takes a lot of time and energy, not only the production efficiency is low, Moreover, the production energy consumption remains high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The sealant contains the following components: 100 parts of EVA resin particles; 0.8 parts of tert-amyl peroxy-2-ethylhexyl carbonate; 0.1 parts of tris(2,4-di-tert-butylphenyl) phosphite; polysuccinic acid 0.5 parts of (4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol) ester; 1 part of flame retardant; 3 parts of diethyl phthalate. When the lamination temperature of the solar photovoltaic module is 130° C. and the lamination time is 12 minutes, the curing rate of the sealant can reach more than 80%.

Embodiment 2

[0024] The sealant contains the following components: 100 parts of EVA resin particles; 1.5 parts of tert-amyl peroxide-2-ethylhexyl carbonate; 3 parts of dibenzoyl peroxide; 4,4'-thiobis(6-tert-butyl base-3-methylphenol) 0.2 parts; bis(1,2,2,6,6-pentamethylpiperidinol) sebacate 0.4 parts; flame retardant 2 parts; diethyl phthalate 2 servings. When the lamination temperature of the solar photovoltaic module is 130° C. and the lamination time is 12 minutes, the curing rate of the sealant can reach more than 80%.

Embodiment 3

[0026] The sealant contains the following components: 100 parts of EVA resin particles; 1.0 parts of tert-amyl peroxide-2-ethylhexyl carbonate; 3 parts of tert-butyl peroxide-2-ethylhexyl carbonate; tetrakis[β-(3' ,5'-di-tert-butyl-4'-hydroxyphenyl) propionate] pentaerythritol ester 0.2 parts; polysuccinic acid (4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol ) ester 0.3 part; flame retardant 0.5 part; dibutyl phthalate 0.2 part. When the lamination temperature of the solar photovoltaic module is 125° C. and the lamination time is 15 minutes, the curing rate of the sealant can reach more than 80%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a sealant for a solar photovoltaic module and a preparation method of the sealant. The sealant is prepared from the following components in parts by weight: (1) 100 parts of EVA (ethylene-vinyl acetate) copolymer particles, (2) 0.5-5 parts of a compound peroxide crosslinking agent, (3) 0.5-3 parts of a silane coupling agent, (4) 0.1-0.5 parts of an antioxidant, (5) 0.1-0.5parts of a light stabilizer (6) 0.5-5 parts of a flame retardant and (7) 0.1-5 parts of a plasticizer. The ultra-fast curing sealant for the solar photovoltaic module has the advantages that the curing temperature of a sealant film is low, curing time is short, production efficiency of the solar module can be effectively improved, production energy consumption can be effectively reduced, and the sealant film has excellent light transmittance, aging resistance and storage performance.

Description

technical field [0001] The invention relates to a sealant for solar photovoltaic modules and a preparation method thereof, belonging to the technical field of solar cells. Background technique [0002] Ethylene-vinyl acetate copolymer (Ethylene Vinyl Acetate, referred to as EVA) is a copolymer of ethylene and vinyl acetate. The introduction of vinyl acetate structural units endows EVA resin with excellent flexibility; in addition, EVA resin has the advantages of high light transmittance, high bonding strength, good processing adaptability, and low price, so it is selected as a solar photovoltaic cell module. Adhesives for lamination packaging. However, EVA is a thermoplastic resin with low elasticity. Its heat resistance, solvent resistance, and cohesive strength are not good enough. It becomes soft and stretched when heated in the sun, and shrinks and hardens in severe cold weather. It is not suitable for direct use in solar cell packaging. , it is necessary to improve it...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09J131/04C09J11/06C09J11/04
Inventor 张世臣
Owner 辽宁旭日新能源科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com