2D-WAXD/SAXS全谱研究石墨烯纤维炭化过程中微结构变化  

2D-WAXD/SAXS Study and Fitting of the Microstructural Evolution of Graphene Fibers During the Carbonization Process

作　　者：裘雅渔[1] 陈芳[1] 刘继永[1] 赵翌帆 Qiu Yayu;Chen Fang;Liu Jiyong;Zhao Yifan(Department of Chemistry,Zhejiang University,Zhejiang,310031)

机构地区：[1]浙江大学化学系,浙江310031

出　　处：《当代化工研究》2025年第2期76-79,共4页Modern Chemical Research

基　　金：2021年国家自然科学基金计划项目“离子液体中溶剂簇限域效应与反应调控机制”(项目编号:22073081);2021年浙江大学分析测试研究项目“基于WAXD-SAXS检测技术的石墨烯纤维的微结构与力学性能关联研究”(项目编号:SYB202104);2024年浙江大学仪器设备专项改造面上项目“小角X射线散射仪准原位液体进样系统的研制”(项目编号:YQZX-B202402)。

摘　　要：利用广角(WAXD)和小角散射(SAXS)联用的方法,对石墨烯纤维炭化过程不同阶段纤维的微孔和取向变化进行研究。WAXD结果表明,在炭化过程中,微晶尺寸变大,并沿着纤维轴方向取向。SAXS结果表明,制备过程中,新微孔进一步形成,微孔逐渐沿纤维轴排列,微孔的平均长度增大。Microstructural evolution in graphene(GO)fibers at different temperatures during carboni-zation under stretching was studied by wide-angle X-ray diffraction(WAXD)and small-angle X-ray scattering(SAXS).The WAXD results showed that the crystal size,d-spacing and pre-ferred orientation decreased during carbonization.The SAXS results showed the average length of the microvoids increased,and new microvoids were formed,which became oriented along the fiber axis as the fiber manufacturing process proceeded.

关 键 词：广角散射 小角散射 石墨烯纤维 微结构 模型拟合 

分 类 号：TQ342.74[化学工程—化纤工业]