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Starch-Based Fishing Composite Fiber and Its Degradation Behavior

文献类型： 外文期刊

作者： Yu, Wenwen 1 ; Yang, Fei 2 ; Wang, Lei 1 ; Liu, Yongli 1 ; Shi, Jiangao 1 ;

作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China

2.Guangdong Overseas Fisheries Assoc, Guangzhou 510240, Peoples R China

期刊名称：INTERNATIONAL JOURNAL OF POLYMER SCIENCE （ 影响因子：2.642； 五年影响因子：3.004 ）

ISSN： 1687-9422

年卷期： 2020 年 2020 卷

页码：

收录情况： SCI

摘要： The starch-based fishing composite fibers were prepared by one-step reactive extrusion and melt spinning. The effects of starch contents on the microstructural, thermal, dynamic mechanical, and mechanical properties of starch-based composite fibers were studied. And the degradation behaviors in soil of the fibers were also investigated. The compatibility between starch and HDPE is improved significantly by grafting maleic anhydride (MA) using one-step reactive blending extrusion. As the starch content increased, the melting temperature and the crystallinity of the fibers gradually decreased due to fluffy internal structures. Dynamic mechanical analysis showed that the transition peak alpha in the high-temperature region was gradually weakened and narrowed with increasing starch content; moreover, a shoulder appeared on the low-temperature side of the alpha peak was assigned to the beta-relaxation related to starch phase. In addition, the mechanical results showed the significant decrease in the breaking strength and increase in the elongation at break of the starch-based composite fibers as the starch content increased. After degradation in soil for 5 months, the surface of the composite fibers had been deteriorated, while flocculent layers were observed and a large number of microfibers appeared. And the weight loss rate of the starch-based composite fibers (5.2 similar to 34.8%) significantly increased with increasing starch content (50 similar to 90 wt%).

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