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Title:
LOW-COST BIO-BASED FULLY-DEGRADABLE THIN FILM AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/052150
Kind Code:
A1
Abstract:
Disclosed are a low-cost bio-based fully-degradable thin film and a preparation method therefor. The ratio of each component in parts by mass of the thin film is as follows: 15-25 parts of a polyglycolide, 25-35 parts of corn starch, 35-55 parts of poly(butylene adipate-co-terephthalate), 5 parts of a compatilizer, 3.75-12.25 parts of a starch plasticizer, 0.5-0.7 part of citric acid, 0.75-1.25 parts of acetyl tributyl citrate, 0.3-0.5 part of maleic anhydride, 0.2 part of antioxidant 164, and 0.2 part of 2-(2'-hydroxyl-5'-methylphenyl)benzotriazole. The low-cost bio-based fully-degradable thin film provided by the present invention has a bio-based content, which can reach 30% or more, a lower cost, and a tensile strength exceeding a traditional PE thin film, and has very important significance for solving the problem of "white pollution" and promoting the popularization and application of fully biodegradable materials.

Inventors:
WU, Xiaojin (WU Weiguo, Southern Side of Jidian Road Electromechanical Industry Park, Situ Tow, Danyang Jiangsu 1, 212331, CN)
SI, Peng (WU Weiguo, Southern Side of Jidian Road Electromechanical Industry Park, Situ Tow, Danyang Jiangsu 1, 212331, CN)
WU, Weiguo (Southern Side of Jidian Road, Electromechanical Industry Park Situ Tow, Danyang Jiangsu 1, 212331, CN)
WENG, Weiming (WU Weiguo, Southern Side of Jidian Road Electromechanical Industry Park, Situ Tow, Danyang Jiangsu 1, 212331, CN)
LIU, Zhigang (WU Weiguo, Southern Side of Jidian Road Electromechanical Industry Park, Situ Tow, Danyang Jiangsu 1, 212331, CN)
Application Number:
CN2018/081023
Publication Date:
March 21, 2019
Filing Date:
March 29, 2018
Export Citation:
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Assignee:
JIANGSU GOLDEN-POLY ALLOY MATERIAL CO., LTD. (WU Weiguo, Southern Side of Jidian Road Electromechanical Industry Park, Situ Tow, Danyang Jiangsu 1, 212331, CN)
International Classes:
C08L3/02; C08K5/053; C08K5/092; C08K5/11; C08K5/20; C08K5/21; C08K5/3475; C08L23/08; C08L51/00; C08L67/02; C08L67/04
Domestic Patent References:
WO2014208934A12014-12-31
Foreign References:
CN107556536A2018-01-09
CN103881145A2014-06-25
CN106366588A2017-02-01
Attorney, Agent or Firm:
SHANGHAI KELV PATENT AGENCY, LLP. (YE Feng, Rm.1004 Block C, No.70 Caobao Road, Xu Hui District, Shanghai 5, 200235, CN)
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