摘要
综述了聚丙烯腈(PAN)纤维在预氧化过程中的反应机制,分析了预氧化过程中纤维颜色、元素含量、纤维结构、力学性能的变化以及金属离子对于预氧化的影响。结果表明:PAN原丝在预氧化过程中发生的环化、氧化、脱氢反应,在很大程度上受到预氧化温度、预氧化时间和施加在纤维上的张力的影响。
The reaction mechanism of polyacrylonitrile （PAN） fiber during pre-oxidation was reviewed. The changes of colour, elementary content, structure properties and metal ions during the pre-oxidation pro- cession were analysed. It was shown that the oxidation, dehydrogenation, cyclization were affected by pre- oxidation temperature, pre-oxidation time and the strain on the fiber.
出处
《合成纤维》
CAS
2013年第12期30-33,共4页
Synthetic Fiber in China
关键词
聚丙烯腈纤维
预氧化
反应机制
结构与性能
polyacrylonitrile fiber, pre-oxidation, reaction mechanism, structure and property
