Hangzhou First Applied Material Co., Ltd.

Mengjuan Wei

Hongbing Hou

Guangda Zhou

Jianhua Lin

Yan Sang

Xi Xiong

Guodong Tang

Hongbong Hou

Provided are a film and an electric device comprising the same. The film comprises at least one modified polyolefin resin layer. A resin forming the modified polyolefin resin layer comprises 1-100% of modified polyolefin resin. A main chain in the modified polyolefin resin is an ethylene-α-olefin copolymer. A grafted branched chain in the modified polyolefin resin is selected from a compound formed by a vinyl monomer comprising one or more of anhydride group, hydroxyl, ester group, carbonyl, acylamino, pyridyl, epoxy, pyrrolidonyl and glycidyl. A molecular weight of the grafted branched chain is 150-8000 g/mol. The film prepared from the modified POE layer with the main chain and the grafted branched chain has excellent anti-PID performance. The layers have a better adhesive property without a laminated interface therebetween. The co-extruded film further has an excellent water vapor barrier property, a relatively high insulating property and a relatively high light transmittance.

Film and electronic device comprising same

The present disclosure relates to a high light transmittance photovoltaic encapsulating material, which is prepared by the following process: subjecting 100 mass parts of a photovoltaic encapsulating material matrix resin or a graft-modified matrix resin, 0.001 to 5 mass parts of an oxygen- or sulfur-containing compound, 0.01 to 10 mass parts of a reactive plasticize 0.01 to 1.5 mass parts of an initiator, 0.01 to 10 mass parts of an assistant cross-linker, 0.1 to 3.0 mass parts of a silane coupling agent, 0.1 to 0.4 mass parts of an ultraviolet light absorber, and 0.1 to 1.0 mass part of light stabilizer to pre-mixing, melt extrusion, film casting, cooling, slitting, and coiling. The light transmittance of the photovoltaic encapsulating material is improved, and the refractive indexes of glass/front-layer encapsulating material/cell match each other, thereby increasing the sunlight utilization ratio of a module, and optimizing the photoelectric conversion efficiency of the module.

High light transmittance photovoltaic encapsulating material

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Hangzhou, China

Mengjuan Wei