Preparation and Characterization of Thermoplastic Starch/Wheat Gluten Composites


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Thermoplastic starch (TPS) and TPS/wheat gluten composites were prepared using compression molding. The wheat gluten contents ranged from 0 wt% to 20 wt%. The morphology of the fractured surfaces, thermal decomposition temperatures and mechanical properties of the TPS and TPS/wheat gluten composites were investigated using scanning election microscopy (SEM), thermal gravimetric analysis (TGA) and tensile testing, respectively. The maximum tensile strength of TPS/wheat gluten composites (1.1 MPa) was obtained when 10 wt% of wheat gluten was used. The crosslinking between wheat gluten protein chains caused an increase in the tensile strength of the TPS/wheat gluten composites. The temperature at the maximum weight loss of the TPS/wheat gluten composites was higher than for TPS. Moreover, wheat gluten decreased the water absorption.



Key Engineering Materials (Volumes 531-532)

Edited by:

Chunliang Zhang and Liangchi Zhang




K. Kaewtathip et al., "Preparation and Characterization of Thermoplastic Starch/Wheat Gluten Composites", Key Engineering Materials, Vols. 531-532, pp. 321-324, 2013

Online since:

December 2012




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