Soy protein isolate-based films cross-linked by epoxidized soybean oil

被引：50

作者：

Xia, Changlei ^{[2
]}

Wang, La ^{[1
]}

Dong, Youming ^{[1
]}

Zhang, Shifeng ^{[1
]}

Shi, Sheldon Q. ^{[2
]}

Cai, Liping ^{[2
]}

Li, Jianzhang ^{[1
]}

机构：

[1] Beijing Forestry Univ, MOE Engn Res Ctr Forestry Biomass Mat & Bioenergy, Beijing Key Lab Wood Sci & Engn, MOE Key Lab Wooden Mat Sci & Applicat, Beijing 100083, Peoples R China

[2] Univ N Texas, Dept Mech & Energy Engn, Denton, TX 76203 USA

来源：

RSC ADVANCES | 2015年 / 5卷 / 101期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

SODIUM DODECYL-SULFATE; MECHANICAL-PROPERTIES; LINKING; STARCH; GLUTARALDEHYDE; COMPOSITES; ADHESIVE; PLASTICS; GLYOXAL; ACID;

D O I：

10.1039/c5ra15590h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Epoxidized soybean oil (ESO) is an environmentally friendly cross-linking agent derived from soybean, having multiple epoxy groups in its molecules. It can effectively improve tensile strength and water resistance of soy protein isolate (SPI)-based films. The properties of the SPI-based films were characterized by X-ray diffraction and attenuated total reflectance Fourier transform infrared spectroscopy. The best performance of the SPI-based films was achieved when the ESO addition was 2.5%, for which tensile modulus, tensile strength and 10% offset yield strength were increased to 265.0 MPa, 9.8 MPa and 6.8 MPa, respectively. Compared to untreated SPI-based films, these were increases of 695.6%, 139.8%, and 246.6%, respectively. However, the elongation at break was decreased by 67.6% due to the cross-linking between SPI and ESO. The SPI-based film modified by 5% ESO had the best water-resistance property and reduced the 24 hour water absorption from 209.1% to 45.9%, which was a significant decrease of 78.1%.

引用

页码：82765 / 82771

页数：7

共 37 条

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