聚丙烯腈纤维的预氧化及性能研究

摘要

According to long pre-oxidation time and high cost of pre-oxidation equipment at home and abroad,a new type of pre-oxidation equipment was designed,and its construction and pre-oxidation principle was introduced.The pre-oxidation process of PAN fiber was described systematically and the relevant process parameters were obtained.The fineness,strength,elongation and fire-re-tardant performance of the fiber were tested.The feasibility of new pre-oxidation equipment was proven.Suggestions on the optimiza-tion of the equipment were presented through data analysis.According to the results of the relevant performance testing and the relat-ed literature analysis,the reasons and influencing factors of the performance change of pre-oxidized fiber were obtained.These studies played a positive role in the research and application of new pre-oxidation equipment.%针对国内外预氧化设备的预氧化时间过长、成本过高等缺点,设计了一种新型预氧化设备,并介绍了其构造及预氧化原理.对聚丙烯腈(PNA)纤维的预氧化过程进行了系统的描述,得到了相关工艺参数,并且对预氧化后的纤维进行细度、强力、伸长及阻燃等性能的测试,确定了新型预氧化设备的可行性.通过数据分析对此设备的一些优化提出了修改意见,并且根据性能测试的结果和相关文献对预氧丝进行分析,得出变化的原因和影响因素等,对新型的预氧化设备的研究和应用起到积极的作用.