温度对玄武岩等高性能纤维压缩弯曲性能的影响  

Effect of Temperature on Compression and Bending Properties of High Performance Fibers such as Basalt Fiber

作　　者：祖文菊 杨建忠[1] 熊海鹰 陈玲玲 张胜男 ZU Wen-ju;YANG Jian-zhong;XIONG Hai-ying;CHEN Ling-ling;ZHANG Sheng-nan(Xi'an Polytechnic University,Xi'an 710048,Shaanxi,China;Hunan Fiber Inspection Research Institute,Changsha 410116,Hunan,China)

机构地区：[1]西安工程大学,陕西西安710048 [2]湖南省纤维检验研究院,湖南长沙410116

出　　处：《合成纤维》2023年第8期35-39,56,共6页Synthetic Fiber in China

基　　金：湖南省市场监管局科技计划项目(2022KJJH08)。

摘　　要：为了探究玄武岩纤维(BF)高温处理后的柔韧性变化,选择聚酰亚胺(PI)纤维和芳纶1414作为参照物,从单纤维压缩弯曲性能的角度,研究了在250~350℃可加工使用的高温范围内BF性能的变化。分析了三种纤维在压缩弯曲过程中的形态、压弯曲线、压弯最大力以及等效弯曲模量等指标,结果表明:经高温处理后,三种纤维的弯曲挠度变化程度为BF<PI纤维<芳纶1414;三种纤维的压弯最大力随着热处理温度的升高而增大,纤维发硬程度增大;当热处理温度为300~350℃时,BF的压弯最大力增幅变小。In order to explore the flexibility change of basalt fiber(BF)after high temperature treatment,polyimide(PI)fiber and aramid fiber 1414 were used as references to study the changes of fiber properties of BF in the high temperature range of 250~350℃ from the perspective of single fiber compression and bending properties.The shape,compression and bending curves,maximum compressive bending force and equivalent bending modulus of three kinds of fibers were analyzed.The results show that after high temperature treatment,the change degree of bending deflection of the three fibers is:BF<PI fiber<aramid fiber 1414.The maximum compressive bending force of the three fibers increases with the increase of heat treatment temperature,the degree of fiber stiffness increases.When the heat treatment temperature is 300~350℃,the increase degree of the maximum compressive bending force of the fiber becomes small.

关 键 词：BF PI纤维 芳纶1414 单纤维压缩弯曲性能 

分 类 号：TQ342.7[化学工程—化纤工业]