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Thermoplastic starch prepared with different plasticizers: Relation between degree of plasticization and properties

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Abstract

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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Authors and Affiliations

  1. Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin, 150040, China

    Yingfeng Zuo  (左迎峰), Jiyou Gu, Haiyan Tan & Yanhua Zhang  (张彦华)

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  1. Yingfeng Zuo  (左迎峰)
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  2. Jiyou Gu
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  3. Haiyan Tan
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  4. Yanhua Zhang  (张彦华)
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Corresponding author

Correspondence to Yanhua Zhang  (张彦华).

Additional information

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

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Zuo, Y., Gu, J., Tan, H. et al. Thermoplastic starch prepared with different plasticizers: Relation between degree of plasticization and properties. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 30, 423–428 (2015). https://doi.org/10.1007/s11595-015-1164-z

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  • DOI: https://doi.org/10.1007/s11595-015-1164-z

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