高温处理对PAN基炭纤维热稳定性的影响  

Influence of high-temperature treatment on heat stability of PAN-based carbon fiber

作　　者：冯阳阳[1] 刘维鹏 崔红[1] 李瑞珍[1] 李向阳 

机构地区：[1]西安航天复合材料研究所,陕西西安710025 [2]西安康本材料有限公司,陕西西安710089

出　　处：《炭素技术》2011年第3期21-24,共4页Carbon Techniques

摘　　要：将2种PAN基炭纤维经3次2 500℃高温处理,研究了不同次数处理后炭纤维的晶格参数、灰分含量以及炭纤维在静态和流动空气中的热稳定性。结果表明高温处理能改善PAN基炭纤维的石墨微晶结构,减少灰分含量;随着高温处理次数的增加,炭纤维在静态空气和流动空气中的氧化失重率降低,热稳定性提高。Two kinds of PAN-based carbon fiber were treated at 2 500 ℃ for thre e times.The lattice parameters,ash content and heat stability in both static a nd flowing air of the carbon fiber after different heat treatment were investiga ted.The results show that high temperature treatment can improve the graphite c rystal structure,and reduce the ash content of PAN-based carbon fiber.With th e increase of the high temperature treatment cycle,the oxidation weight loss of the two kinds of carbon fibers reduced both in the static and flowing air,and the heat stability of carbon fiber are improved.

关 键 词：炭纤维 高温处理 石墨微晶结构 热稳定性 

分 类 号：V258.3[一般工业技术—材料科学与工程]