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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 (CN)
SI PENG (CN)
WU WEIGUO (CN)
WENG WEIMING (CN)
LIU ZHIGANG (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 MAT CO LTD (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. (200235, CN)
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