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采用凹凸棒土(AT)对魔芋葡甘聚糖(KGM)进行共混改性,制备了KGM/AT共混溶液,以95%的酒精为凝固浴,利用注射器模拟湿法纺丝制备了KGM/AT复合纤维,通过纤维的纵向形态结构观察初步研究了AT对KGM溶液可纺性的影响,并对纤维的力学性能、吸水性能进行了测试.结果表明,KGM/AT溶液具有一定的可纺性,但是在AT用量较高时,纤维呈现出的弱节、疵点等结构不均匀性更为明显;适量的AT经过适当的牵伸有助于分子链取向,可以提高复合纤维的力学性能;此外,AT用量较低时有助于KGM纤维吸水,最高吸水倍率提高了近50%.

参考文献

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[2] Dongying Jia;Yu Fang;Kai Yao .Water vapor barrier and mechanical properties of konjac glucomannan-chitosan-soy protein isolate edible films.[J].Food and Bioproducts Processing. Transactions of the Institution of Chemical Engineers, Part C,2009(1):7-10.
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[4] Shanjun Gao;Jinming Guo;Katsuyoshi Nishinari .Thermoreversible konjac glucomannan gel crosslinked by borax[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,2008(2):315-325.
[5] Peng ZQ;Chen DJ .Alignment effect of attapulgite on the mechanical properties of poly(vinyl alcohol)/attapulgite nanocomposite fibers[J].Journal of Polymer Science, Part B. Polymer Physics,2006(14):1995-2000.
[6] 于金超,彭志勤,胡国樑,梅云云,俞洁洁.葡甘聚糖/凹凸棒土共混溶液的流变性质[J].纺织学报,2012(03):9-13.
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[9] 白智勇,邓新华,孙元,周晓峰,边栋材,张涛.纳米二氧化硅、二氧化钛对高吸水纤维性能的影响[J].精细石油化工,2006(05):51-54.
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