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材料工程  2015 

PAN/插层高岭石复合材料制备及静电纺丝性能

DOI: 10.11868/j.issn.1001-4381.2015.10.008, PP. 49-54

Keywords: 聚丙烯腈,插层高岭石,原位聚合,静电纺丝

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Abstract:

以二甲基亚砜为前驱体制备插层高岭石(K-DMSO),通过原位聚合制备聚丙烯腈(PAN)与K-DMSO的复合物,利用静电纺丝技术制备PAN/K-DMSO复合纤维膜。采用XRD,FTIR,TEM和TGA研究PAN/K-DMSO复合物的微观形态和热性能,并采用SEM,POM和拉伸试验机对其纤维膜的形貌和拉伸强度进行测试表征。结果表明PAN/K-DMSO中含有高岭石的内外羟基峰,表征层间距的d001值随PAN进入高岭石的层间而增大,部分高岭石被剥离形成厚度为2~5nm的片层结构分散在PAN基体中。K-DMSO的加入使PAN的耐热性提高,PAN纤维膜的直径减小,拉伸强度增加。PAN与K-DMSO的质量比为81时,PAN/K-DMSO纤维膜的拉伸强度与PAN相比,在未处理,冷压和热处理的情况下分别提高了0.92,1.73MPa和1.96MPa。

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