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.
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.
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.
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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关键词:
- Thermoplastic starch
- / formamide
- / urea
- / retrogradation
English
A Mixed Plasticizer for the Preparation of Thermoplastic Starch
Abstract:
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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Key words:
- Thermoplastic starch
- / formamide
- / urea
- / retrogradation
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