CAJ | 학술논문

将聚丙烯腈(PAN)纤维在空气气氛中于180～240℃范围内进行预处理,利用差示扫描量热仪(DSC)和傅立叶变换红外光谱(FT-IR)测试手段考察了预处理过程中形成的初期结构及其含量对纤维后续反应热性能的影响.结果表明:PAN纤维预处理过程中形成的含氧结构影响纤维的后续反应热性能;初期形成的含氧结构及其含量具有明显的时间效应和温度效应.
장취병희정(PAN)섬유재공기기분중우180～240℃범위내진행예처리,이용차시소묘량열의(DSC)화부립협변환홍외광보(FT-IR)측시수단고찰료예처리과정중형성적초기결구급기함량대섬유후속반응열성능적영향.결과표명:PAN섬유예처리과정중형성적함양결구영향섬유적후속반응열성능;초기형성적함양결구급기함량구유명현적시간효응화온도효응.
Polyacrylonitrile fibers were pretreated in air at temperatures ranging from 180℃ to 240℃.The effect of the initial structure formed during pretreatment and its content on the subsequent thermal properties were studied by DSC and FT-IR.The results showed that structures containing oxygen formed during pretreatment of the PAN fiber and affected the subsequent thermal properties of the fibers.The nature of the oxygen bearing structures and their content varied with the time and temperature employed in the pretreatment step.