Preparation of alginate/soy protein isolate blend fibers through a novel coagulating bath

被引：0
|
作者：
Wang, Qun [1 ]
Du, Yumin [1 ]
Hu, Xianwen [1 ]
Yang, Jianhong [1 ]
Fan, Lihong [1 ]
Feng, Tao [1 ]
机构：
[1] Department of Environmental Science, Wuhan University, Wuhan 430072, China
来源：
Journal of Applied Polymer Science | 2006年 / 101卷 / 01期
关键词：
Alginate and soy protein isolate blend fibers were prepared by spinning their solution through a viscose-type spinneret into a novel coagulating bath containing aqueous CaCl2; HCl; and ethanol. The structures and properties of the fibers were studied with the aids of infrared spectra (IR); X-ray diffraction (XRD); and scanning electron micrograph (SEM). Mechanical properties and water-retention properties were measured. And with the sample of AS1 fiber (soy protein isolate weight content was 10%); the effects of the composition of the novel coagulating bath were also studied. The best values of the tensile strength of AS1 were 14.1 cN/tex in the dry state and 3.46 cN/tex in the wet state; respectively. Both the dry state and wet state breaking elongation were also having the best value 20.71% and 56.7% with AS1. Mechanical properties of the AS1 enhanced with the CaCl2 content increased in the coagulating bath. When the HCl content was 1%; the mechanical property of the fiber was best. Ethanol in the coagulating bath increased the wet mechanical properties of the fiber by 41.2% (tensile strength) and 45.1% (breaking elongation) when the ethanol weight content in the coagulating bath was 50%; but it had little effect on the dry mechanical properties. And the water-retention value (WRV) of blend fibers decreased as the amount of soy protein isolate was raised. The structure analysis indicated that there were strong interaction and a certain level of miscibility between alginate and soy protein isolate. © 2006 Wiley Periodicals; Inc;
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页码：425 / 431
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