期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 53, 期 -, 页码 261-267出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.indcrop.2013.12.039
关键词
Plasticized starch; Epoxidized soybean oil; Strength
Thermoplastic starch (TPS) was modified in situ with epoxidized soybean oil (ESO) using melt reactive blending in an internal mixer, in order to improve the stiffness and the mechanical strength of the TPS. Evidence of the condensation reaction between the epoxide ring of ESO and the hydroxyl groups was supported by FTIR. The evolution of the properties of the modified TPS, in terms of mechanical properties, microstructure and water absorption, was investigated using tensile mechanical, dynamic mechanical analysis (DMA), X-ray diffraction (XRD) and water uptake. The addition of ESO results in a huge enhancement in both Young's modulus and tensile strength. The hydrophobicity of the TPS was also increased upon the addition of ESO. (C) 2013 Elsevier B.V. All rights reserved.
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