利用感应加热技术进行炭纤维连续石墨化  

The continuous graphitization of carbon fibers by induction heating

作　　者：王浩静[1] 李东风[1] 王心葵[1] 

机构地区：[1]中国科学院炭材料重点实验室中国科学院山西煤炭化学研究所

出　　处：《新型炭材料》2006年第2期114-118,共5页New Carbon Materials

基　　金：中国科学院知识创新工程重要方向项目(KGCX3-SYW-202)~~

摘　　要：采用感应加热技术研制出炭纤维连续高温热处理专用设备石墨化炉，最高使用温度3000℃。对PAN基炭纤维T300进行了连续石墨化处理，热处理温度为2000℃～3000℃，制备出力学性能相当于日本东丽公司M40的石墨纤维，验证了该设备的技术可行性。考察了热处理温度对炭纤维力学性能、密度和直径的影响，用SEM观察了石墨化前后炭纤维表面微观形态的变化。结果表明：随热处理温度的提高，炭纤维的密度增大、直径减小，弹性模量升高，而抗拉强度下降。经3000℃高温热处理后，纤维的弹性模量高达450GPa。Equipment for the continuous graphitization of carbon fibers by induction heating was manufactured, which could provide temperature as high as 3 000 ℃. Toray T300 carbon fibers were graphitized at temperature ranging from 2 000 ℃ to 3 000 ℃ using such equipment and the effect of heat treatment temperature on their mechanical properties was investigated. Results show that the tensile modulus and density increase while the tensile strength and diameter decrease with increasing heat treatment temperature. After heat treatment at 3 000 ℃, the tensile modulus of the as-prepared carbon fibers is as high as 450 GPa.

关 键 词：炭纤维 石墨化 感应加热 

分 类 号：TQ342.74[化学工程—化纤工业]