PAN基预氧化纤维表面形态改善的研究  

Study on the Improvement of Surface Morphology of PAN-based Pre-oxidized Fibers

作　　者：李果 杨瑞 范宝琳 LI Guo;YANG Rui;FAN Baolin(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》2024年第4期34-37,共4页Hi-Tech Fiber and Application

基　　金：中复神鹰碳纤维连云港有限公司年产3万吨高性能碳纤维建设项目。

摘　　要：针对热风循环预氧化炉在生产过程中存在的丝束和单丝间热熔并现象和纤维表面杂质颗粒问题进行定向改造。结果表明,在预氧化炉的炉腔内安装分风装置,可以改善风量均匀性,有效解决丝束及单丝间的热融并现象;在预氧化炉加热温区增加循环风扇,同时在循环通道内加装过滤网,可以保持循环风的洁净,大幅减少纤维表面颗粒杂质,从而提升预氧化程度的均匀性及碳纤维性能的一致性,使最终碳纤维的力学性能得以显著提升。In view of the hot melt merging phenomenon between tow and monofilament and the problem of impurity particles on the fiber surface in the production process of hot air circulating pre-oxidation furnace,directional transformation was carried out.The results show that the installation of air distribution device in the furnace cavity of the pre-oxidation furnace can improve the uniformity of air volume and effectively solve the phenomenon of thermal melting and merging between the tow and the monofilament.In this way,the uniformity of the degree of pre-oxidation and the consistency of the properties of the carbon fiber are improved,so that the mechanical properties of the final carbon fiber can be significantly improved.

关 键 词：预氧化 碳纤维 表面形态 

分 类 号：TQ342.74[化学工程—化纤工业]