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Preparation and properties of wheat gluten/rice protein composites plasticized with glycerol

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Abstract

Environment friendly thermosetting composites were prepared by blending wheat gluten (WG) and rice protein (RP) at different weight ratios with glycerol as plasticizer followed by compression molding the mixture at 120°C to crosslink the proteins. Reducing agent of sodium bisulfate and sodium sulfite and crosslinking agent formaldehyde were used to adjust the properties of the composites. Morphology, moisture absorption and tensile properties were evaluated. The results showed that formaldehyde could increase tensile strength of the composites without significant influence on Young’s modulus and elongation at break. On the other hand, reducing agents could improve tensile strength and extensibility simultaneously, which was much marked at WG/RP ratios from 7/3 to 3/7.

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Authors and Affiliations

  1. MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China

    Yan-yan Yang, Yi-hu Song  (宋义虎) & Qiang Zheng

  2. National Engineering Research Centre for Compounding and Modification of Polymeric Materials, Guiyang, 550014, China

    Kai-zhou Zhang

Authors
  1. Yan-yan Yang
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  2. Kai-zhou Zhang
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  3. Yi-hu Song  (宋义虎)
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  4. Qiang Zheng
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Corresponding author

Correspondence to Yi-hu Song  (宋义虎).

Additional information

This work was financially supported by the National Natural Science Foundation of China (No. 50773068) and Natural Science Foundation of Zhejiang Province (No. Y407011).

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Yang, Yy., Zhang, Kz., Song, Yh. et al. Preparation and properties of wheat gluten/rice protein composites plasticized with glycerol. Chin J Polym Sci 29, 87–92 (2011). https://doi.org/10.1007/s10118-010-9185-8

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  • DOI: https://doi.org/10.1007/s10118-010-9185-8

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