期刊
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
卷 30, 期 2, 页码 423-428出版社
WUHAN UNIV TECHNOLOGY
DOI: 10.1007/s11595-015-1164-z
关键词
corn starch; plasticizer; thermoplastics; degree of plasticization; properties
资金
- Fundamental Research Funds for the Central Universities [DL13CB13]
- China Postdoctoral Science Foundation [2014M550178]
- National Natural Science Foundation of China [31200442]
Ethylene glycol, glycerol, sorbitol, formamide, and urea were used as plasticizers for the preparation of thermoplastic starch (TPS) from corn starch. The properties of TPS were tested by analysis method. The results showed that TPSs were more highly plasticized with amines than alcohols. For the same type of plasticizer, the degree of plasticization decreased as the molecular weight of plasticizer increased. The relationship between plasticization degree and TPS properties was characterized and described by mechanical properties and water absorption. The experimental results showed that when the degree of plasticization increased, the tensile strength decreased and the elongation at breakage and water absorption increased.
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