PAN原丝直径对碳纤维收率的影响  

EFFECT OF PAN FIBER DIAMETER ON CARBON FIBER YIELD

作　　者：薛亚俊 张明 顾红星 张淑斌 齐晶瑶 XUE Ya-jun;ZHANG Ming;GU Hong-xing;ZHANG Shu-bin;QI Jing-yao(Jiangsu Hengshen Co.,Ltd.,Danyang 212314,China;School of Environment,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]江苏恒神股份有限公司,丹阳212314 [2]哈尔滨工业大学环境学院,哈尔滨150001

出　　处：《复合材料科学与工程》2021年第3期94-98,共5页Composites Science and Engineering

摘　　要：对不同预氧化条件下两种直径PAN原丝的碳纤维收率进行了分析,并利用TG、XPS、NMR、Raman等测试表征方法,深入讨论了原丝直径对其碳纤维收率的影响。结果表明:预氧化温度越高,PAN原丝的碳纤维收率越高,相同工艺条件下粗直径PAN原丝的碳纤维收率高于细直径原丝的碳纤维收率,粗直径PAN原丝的热失重一直低于细直径原丝的热失重,细直径PAN预氧丝的预氧化程度高于粗直径PAN原丝的预氧化程度,而不同直径预氧丝表面元素及碳纤维表面微晶结构无差异。The carbon fiber yields of different diameter PAN fibers under different pre-oxidation conditions were analyzed,and the effect of PAN fiber diameter on carbon fiber yield was discussed by TG,XPS,NMR,Raman.The results showed that the higher the pre-oxidation temperature,the higher the carbon fiber yield.The carbon fiber yields of thick-diameter PAN fibers were higher than that of thin-diameter fibers under the same process conditions.The TG of the thick-diameter PAN fibers had been lower than that of the thin-diameter fibers.Under the same condition,the pre-oxidation degree of thin-diameter PAN fibers was higher than that of thick-diameter PAN fibers.However,the surface elements of different diameter of preoxidation fibers and the microcrystalline structure of carbon fibers surface had no difference.

关 键 词：PAN原丝 直径 预氧化 碳化 碳收率 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]