高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (6): 1124.

• 研究论文 • 上一篇    下一篇

聚丙烯腈基碳纤维中微孔洞的一维多取向小角X射线散射研究

黄祖飞1, 王春忠1, 魏英进1, 徐跃1, 高忠民1, 华中2, 陈岗1   

  1. 1. 吉林大学材料科学与工程学院, 汽车材料教育部重点实验室, 长春 130023;
    2. 吉林师范大学物理系, 四平 136000
  • 收稿日期:2003-05-09 出版日期:2004-06-24 发布日期:2004-06-24
  • 通讯作者: 陈 岗(1958年出生),男,博士,教授,博士生导师,从事材料物理与化学研究.E-mail:jzhan@mai.ljlu.edu.cn E-mail:jzhan@mai.ljlu.edu.cn
  • 基金资助:

    教育部博士点基金(批准号:20010183031)资助

Multi-orientated One-dimensional Small Angle X-ray Scattering Study of Microvoids in Polyacylonitrile-based Carbon Fibers

HUANG Zu-Fei1, WANG Chun-Zhong1, WEI Ying-Jin1, XU Yue1, GAO Zhong-Min1, HUA Zhong2, CHEN Gang1   

  1. 1. Key Laboratory Automobile Materials of Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130023, China;
    2. Department of Physics, Jilin Normal University, Siping 136000, China
  • Received:2003-05-09 Online:2004-06-24 Published:2004-06-24

摘要: 应用一维多取向小角X射线散射(SAXS)方法研究了聚丙烯腈(PAN)基碳纤维中微孔洞的形态.结果表明,这些微孔洞沿纤维轴方向呈针状,并与纤维轴呈Φ=14°角的取向排列;微孔洞投影在碳纤维横截面上的平均半径R=1.14nm,投影在碳纤维轴向上的平均长度L=17.97nm.建立的一维多取向SAXS方法可以得到若干二维SAXS方法才能得到的微孔洞形态及分布信息等参数(如Φ和L),且在各种纤维的微孔洞或微纤维的表征方面具有一定的普适性.

关键词: 一维多取向小角X射线散射, 碳纤维, 微孔洞

Abstract: The configuration of the microvoids in polyacrylonitrile(PAN)-based carbon fibers was studied by multi-orientated one-dimensional small angle X-ray scattering. The microvoids show a preferred orientation and have needlelike shape elongating along the fiber axis,and the oriented angle is Φ=14°. the cross-section radius of the microvoids projected onto the fiber cross section is R=1.14 nm and the length projected onto the fiber axis is L=17.98 nm. The method developed in this paper reveals some aspects of the configuration of the microvoids which were only available with two-dimensional small angle X-ray scattering technique such as Φ and L,and can be applied to the characterization of the configuration of the microvoids or the microfibrils in other fiber systems.

Key words: Multi-orientated one-dimensional SAX, Carbon fiber, Microvoids

中图分类号: 

TrendMD: