A Mixed Plasticizer for the Preparation of Thermoplastic Starch

Xiao Fei MA Jiu Gao YU Jin FENG

引用本文: Xiao Fei MA,  Jiu Gao YU,  Jin FENG. A Mixed Plasticizer for the Preparation of Thermoplastic Starch[J]. Chinese Chemical Letters, 2004, 15(6): 741-744. shu
Citation:  Xiao Fei MA,  Jiu Gao YU,  Jin FENG. A Mixed Plasticizer for the Preparation of Thermoplastic Starch[J]. Chinese Chemical Letters, 2004, 15(6): 741-744. shu

A Mixed Plasticizer for the Preparation of Thermoplastic Starch

摘要: In this paper, formamide was firstly used as plasticizer to prepare thermoplastic starch (TPS), which could suppress the retrogradation of TPS by X-ray diffractometry (XRD) and show a good flexibility, but was weaker than conventional glycerol-plasticized TPS (GPTPS). When urea was introduced into plasticizer, both the retrogradation and mechanical properties were ameliorated. The tensile stress, strain and energy break of TPS plasticized by urea (wt. 20%) and formamide (wt.10%), respectively, reached 4.83 MPa, 104.6% and 2.17 N·m (Newton?meter) after it had been stored at relative humidity (RH) 30% for one week.

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  • 收稿日期:  2003-05-13
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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