芳纶纤维的改性处理综述

A review on the modification of aramid fiber

芳纶纤维作为合成纤维,长度均一、表面光滑、活性极性基团少而具有强疏水性,对位芳纶纤维在水介质中也因此易絮聚不易分散,导致其高模高强耐高温阻燃等特性在各领域应用时效果不是很好。本文将从芳纶纤维的结构、水介质中分散性差的原因以及改善措施三方面阐述芳纶纤维的改性处理,以期对芳纶纤维功能化或提高对位芳纶短切纤维的亲水性提供新思路。

As a synthetic fiber,aramid fiber has uniform length,smooth surface,less active polar groups and strong hydrophobicity,which make it easy to flocculate in aqueous medium.So it doesn’t perform well in high temperature resistance.In this paper,the modification treatment of aramid fiber was described from the structure of aramid fiber,the reason of poor dispersibility in water and related solutions,so as to provide reference to aramid fiber functionalization or hydrophilicity upgrading of para-aramid short-cut fiber.