PHOTOVOLTAIC ENCAPSULATION MATERIAL WITH HIGH LIGHT TRANSMITTANCE

WIPO Patent Application WO/2019/136825

A1

The present invention relates to a photovoltaic encapsulation material with a high light transmittance. According to the present invention, 100 parts by mass of a photovoltaic encapsulation material matrix resin or a graft modified matrix resin, 0.001-5 parts by mass of an oxygen-containing or sulfur-containing compound, 0.01-10 parts by mass of a reactive plasticizer, 0.01-1.5 parts by mass of an initiator, 0.01-10 parts by mass of a co-crosslinking agent, 0.1-3.0 parts by mass of a silane coupling agent, 0.1-0.4 part by mass of an ultraviolet light absorber, and 0.1-1.0 part by mass of a light stabilizer are subjected to processes such as premixing, melt extrusion, film casting, cooling, slitting and rolling-up to prepare the photovoltaic encapsulation material with a high light transmittance. According to the present invention, the light transmittance of the photovoltaic encapsulation material is improved, so that better matching in the refractive index between a piece of glass/the front layer encapsulation material/a battery piece is achieved, the utilization rate of sunlight of a module is increased, and the photoelectric conversion efficiency of the module is optimized and improved.

WEI MENGJUAN (CN)
SAN YAN (CN)
ZHOU GUANGDA (CN)
XIONG XI (CN)
HOU HONGBING (CN)
LIN JIANHUA (CN)

PCT/CN2018/079509

July 18, 2019

March 20, 2018

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HANGZHOU FIRST APPLIED MAT CO LTD (CN)

C08L23/08; C08J3/24; C08J5/18; C08K5/00; C08K5/07; C08K5/3435; C08K5/39; C08K5/5425; C08L51/06

CN106833406A	2017-06-13
CN107266777A	2017-10-20
CN101353558A	2009-01-28
CN102656705A	2012-09-05
CN107502232A	2017-12-22

See also references of EP 3739002A4

HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)

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