预氧化温度对大丝束碳纤维性能的影响  

Effect of Preoxidation Temperature on Properties of Large Tow Fiber Bundles

作　　者：杨翔麟 陈秋飞 刘高君 范宝琳 林康 徐方正 YANG Xianglin;CHEN Qiufei;LIU Gaojun;FAN Baolin;LIN Kang;XU Fangzheng(Zhongfu Shenying Carbon Fiber Co.,Ltd.,Lianyungang 222069,Jiangsu,China)

机构地区：[1]中复神鹰碳纤维股份有限公司,江苏连云港222069

出　　处：《高科技纤维与应用》2023年第4期29-32,共4页Hi-Tech Fiber and Application

基　　金：江苏省重点研发计划专项资金资助(BE2021014-1)。

摘　　要：预氧化阶段是碳纤维生产过程中的关键环节之一,对碳纤维最终的结构性能具有重要影响,而影响预氧化工艺的重要因素则包括温度、时间及牵伸等。本文通过梯度密度仪、纤维强伸度仪、元素分析仪(EA)、傅里叶变换红外光谱仪(FTIR)以及扫描电镜(SEM)等测试手段。在其他工艺条件相同情况下,通过调整温度对PAN基原丝大丝束(48K)进行预氧化,对生产的预氧纤维性能结构进行分析,以探索预氧化温度对大丝束PAN基碳纤维的影响。The pre-oxidation stage is one of the most critical links in the production process of carbon fiber,which has an important impact on the final structural properties of carbon fiber.The important factors affecting the pre-oxidation process include temperature,time and drafting.In this paper,the gradient density instrument,fiber strength and elongation instrument,element analyzer(EA),Fourier transform infrared spectrometer(FTIR)and scanning electron microscope(SEM)are used to test.Under the same conditions of other processes,the preoxidation of large tow polyacrylonitrile(PAN)precursors(48K)was carried out by adjusting the temperature,and the properties and structures of the preoxygenated fibers were analyzed to explore the influence of preoxidation temperature on the large filament bundle PAN fibers.

关 键 词：PAN基碳纤维 大丝束 预氧化工艺 结构性能 

分 类 号：TQ342.74[化学工程—化纤工业]