用动态反射光度法研究PAN原丝表面的预氧化过程  

AN INVESTIGATION OF THE PREOXIDATION PROCESS FOR THE SURFACE OF PAN FIBRES BY USING THE DYNAMIC REFLEX SPECTRAL METHOD

作　　者：梁涛[1] 赵根祥[1] 候树元 

机构地区：[1]中国科学院山西煤炭化学研究所

出　　处：《合成纤维工业》1989年第3期29-33,共5页China Synthetic Fiber Industry

摘　　要：用动态反射光度法在空气气象中测定了7种PAN原丝表面的预氧化反应随热解温度和时间的变化规律。实验结果表明,随着热解温度的提高,原丝的变色百分数也随着上升。在7种原丝中,经ZnCl_2处理过的自制丝的起始变色温度为最低,兰州丝的变色百分数为最小,吉林丝达到最大变色反应速率的时间为最长和变色反应增长速度为最高。并且,7种原兰的变色反应次序为:经ZnCl_2处理的自制丝>兰州丝>英国丝>未加处理的自制丝>经ZnCl_2处理的榆次丝>吉林丝>未加处理的榆次丝。The Preoxidative reaction at the surface of seven kinds of PAN fibres in air atmosphere were measured by using Dynamic Reflex Spectral method. The results show that the percentage of discoloration of the fibres increases as the rising of the pyrolysis temperature. Among seven kinds of fibres, the initial discoloration temperatures of the fibres 4~*, 5~*(treated with ZnCl_2)are the lowest, the percentage of discoloration of the fibre 3~* is the smallest, and the period with the fastest reaction rate of the fibre 1~* is the longest. The discoloration reaction orders are: 4~*, 5~* (treated with ZnCl_2, made in Shanxi)>3~* (made in Lanzhou)>2~* (made in England)>4~*, 5~* (untreated)>6~*, 7~* (treated with ZnCl_2, made in Yuci)>1~* (made in Jilin)>7~* (untreated).

关 键 词：聚丙烯腈基 碳纤维 预氧化 光度法 

分 类 号：TQ342.741[化学工程—化纤工业]