高强高模PAN基石墨纤维的制备研究  

Preparation of PAN based graphite fiber

作　　者：周玉柱 张学军[2] 田艳红[2] 高峰阁 李文泉 

机构地区：[1]陕西天策新材料科技有限公司,西安710100 [2]北京化工大学,北京100029

出　　处：《高科技纤维与应用》2015年第5期52-54,共3页Hi-Tech Fiber and Application

摘　　要：以国产T800级PAN基碳纤维为原料,通过调整石墨化温度和牵伸率,制备出拉伸强度3.8 GPa和拉伸模量450 GPa的石墨纤维。研究发现,拉伸模量随石墨化处理的温度升高和牵伸比的增加而提高,而其拉伸强度随牵伸比的增加而下降。进一步分析石墨化处理过程中纤维微观结构参数发现,微观有序化和高取向是制备高强高模石墨纤维的关键。High modulus graphite fiber were through adjusting the graphitization temperature and draft ratio of domestic PAN based carbon fiber as raw material, prepared. The strength of the graphite fiber is 3.8 GPa and the modulus is 450 GPa. As the graphitization temperature and draft ratio increase, the modulus of PAN based graphitized fiber can be continuously improved, but the strength slightly decreases when higher draft ratio is used. We analyzed the micro structure parameters of the fiber during the graphitization, which showed that the key factors to make high strength, high modulus graphite fiber are microcosmic ordering and high orientation.

关 键 词：石墨纤维 石墨化温度 牵伸比 力学性能 制备研究 

分 类 号：TQ342.743[化学工程—化纤工业]