Thermoplastic Starch Prepared with Different Plasticizers: Relation between Degree of Plasticization and Properties  

作　　者：左迎峰 GU Jiyou TAN Haiyan 张彦华 

机构地区：[1]Key Laboratory of Bio-based Material Science and Technology (Ministry of Education),Northeast Forestry University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2015年第2期423-428,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Fundamental Research Funds for the Central Universities(DL13CB13);the China Postdoctoral Science Foundation Funded Project(No.2014M550178);the National Natural Science Foundation of China(No.31200442)

摘　　要：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.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.

关 键 词：corn starch plasticizer thermoplastics degree of plasticization properties 

分 类 号：TQ414[化学工程]