Citation: Yi-hu Song, Qiang Zheng, Zheng-zheng Lai. PROPERTIES OF THERMO-MOLDED GLUTEN/GLYCEROL/SILICA COMPOSITES[J]. Chinese Journal of Polymer Science, ;2008, 26(5): 631-638. shu

PROPERTIES OF THERMO-MOLDED GLUTEN/GLYCEROL/SILICA COMPOSITES

Received Date: 28 June 2007
Revised Date: 30 July 2007

Environmentally friendly thermosetting composites were successfully prepared by conventional blending wheat gluten as matrix, glycerol as plasticizer and silica as filler followed by thermo-molding of the mixture at 120οC. The strong interfacial interaction between silica particles and gluten proteins leaded to an increase in storage modulus and a decrease in loss factor as revealed by dynamic mechanical analysis. The moisture absorption and elongation at break decrease while Young’s modulus and tensile strength increase with increasing silica content from 0 to 10 wt%. However, the moisture absorption and mechanical properties show discontinuous changes at a silica content of 6 wt%. The glycerol content also has a marked influence on the moisture absorption and mechanical properties of the composites with a constant gluten-to-silica ratio.
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