Title: Light reflective multifunctional composite film for greenhouse and process for preparing same
Application Number: 200610026012 Application Date: 2006.04.25
Publication Number: 1836898 Publication Date: 2006.09.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B32B27/00,B32B27/18,B32B27/32,A01G13/02,A01G9/14
Applicant(s) Name: Shanghai Dazhi Sanhua Film Co., Ltd. Address: 201705
Inventor(s) Name: Xu Ling, Chai Jianmin
Attorney & Agent:
Abstract:
     The present invention is reflecting multifunctional three-layer composite film for greenhouse and its preparation process. The composite film has a first or outer layer of polyethylene added with light reflecting and ultraviolet ray absorbing master batch, a second or middle layer of ethylene-vinyl acetate copolymer or the mixture of ethylene-vinyl acetate copolymer and polyethylene added with light reflecting and ultraviolet ray absorbing master batch, and a third or inner layer of polyethylene added with far infrared blocking master batch and black master batch. The first layer is silver or white and the third layer is black. The composite film has the functions of reflecting visible light, absorbing ultraviolet ray, blocking far infrared, killing pests, killing weeds, lower temperature, etc. and possesses excellent mechanical performance and ageing resistance.
Time: 7
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