摘要
在超高分子质量的聚乙烯(UHMWPE)中添加经过纯化和官能化处理的碳纳米管(CNTs),用冻胶纺丝和超倍拉伸法制成了UHMWPE／CNTs复合纤维。研究了不同含量的CNTs对UHMWPE冻胶纤维形态、结构和性能以及不同的拉伸倍率对纤维结构与性能的影响。结果表明,添加CNTs后,冻胶萃取丝的形态发生极大的变化,从典型的"丝瓜筋结构"变为"面条结构"。文章提出了"受限结晶模型"。碳纳米管的加入使UHMWPE纤维的热性能、力学性能及蠕变性能均得到了很大改善。
The compound fiber UHMWPE/ CNTs was prepared through superimposing carbon nanometer tubes ( CNTs) in ultrahigh molecular weight polyethylene ( UHMWPE ) with jel spinning method , and the CNTs were decontaminated and processed in functional groups in advance. The effect of content and drawing multiple of CNTs on the configuration , structure and properties of UHMWPE fibers were studied. The result showed that the configuration of jel extractive filum changes greatly after superimposing CNTs in it , from the typical'luffa structure' to 'noodle structure'. This paper also put forward constrained crystallization model. The thermal property , mechanical property and creep property of the UHMWPE/ CNTs fiber were greatly improved after superimposing of CNTs.
出处
《金山油化纤》
2005年第1期1-7,共7页
Petrochemical Technology in Jinshan
