The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2017
Filed:
Aug. 07, 2014
Hangzhou First Pv Material Co. Ltd., Hangzhou, Zhejiang Province, CN;
Ping Jin, Zhejiang, CN;
HANGZHOU FIRST PV MATERIAL CO., LTD., Zhejiang Province, CN;
Abstract
The invention provides a dual-initiated and fast cross-linked EVA (ethylene/vinyl acetate copolymer) film for the encapsulation of solar modules, which greatly enhances the speed of the encapsulation. The EVA film is mainly prepared from the following raw materials: 100 parts by mass of ethylene/vinyl acetate copolymer, 0.01 to 1.5 parts by mass of a free-radical photoinitiator, 0.01 to 1.5 parts by mass of a free-radical thermal initiator, 0.5 to 10 parts by mass of an auxiliary cross-linking agent, 0.1 to 5 parts by mass of a tackifier and 0.01 to 5 parts by mass of a light stabilizer. The present invention adds photothermal dual-initiated free-radical initiators and the auxiliary cross-linking agent of multi-functional acrylates or methacrylates to the EVA and use a thermal-UV dual curing process to prepare the solar module. The curing time is shorten to 5 to 10 min and the yield is high; meanwhile, the EVA film has advantages of uniform curing, high crosslink density, high bonding strength between the film and glass, and good anti-aging property.