• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Hybrid Surface Modifications on Tensile Properties of Polyacrylonitrile- and Pitch-Based Carbon Fibers
【24h】

Effect of Hybrid Surface Modifications on Tensile Properties of Polyacrylonitrile- and Pitch-Based Carbon Fibers

机译：混杂表面改性对聚丙烯腈和沥青基碳纤维拉伸性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Recent interest has emerged in techniques that modify the surfaces of carbon fibers, such as carbon nanotube (CNT) grafting or polymer coating. Hybridization of these surface modifications has the potential to generate highly tunable, high-performance materials. In this study, the mechanical properties of surface-modified polyacrylonitrile (PAN)-based and pitch-based carbon fibers were investigated. Single-filament tensile tests were performed for fibers modified by CNT grafting, dipped polyimide coating, high-temperature vapor deposition polymerized polyimide coating, grafting-dipping hybridization, and grafting-vapor deposition hybridization. The Weibull statistical distributions of the tensile strengths of the surface-modified PAN- and pitch-based carbon fibers were examined. All surface modifications, especially hybrid modifications, improved the tensile strengths and Weibull moduli of the carbon fibers. The results exhibited a linear relationship between the Weibull modulus and average tensile strength on a log-log scale for all surface-modified PAN- and pitch-based carbon fibers.
机译：对诸如碳纳米管（CNT）接枝或聚合物涂层之类的改变碳纤维表面的技术产生了新的兴趣。这些表面修饰的杂交有可能产生高度可调的高性能材料。在这项研究中，研究了表面改性聚丙烯腈（PAN）基和沥青基碳纤维的机械性能。对通过CNT接枝，浸渍聚酰亚胺涂层，高温气相沉积聚合的聚酰亚胺涂层，接枝-浸渍杂交和接枝-气相沉积杂交改性的纤维进行了单丝拉伸试验。检查了表面改性的PAN和沥青基碳纤维的拉伸强度的威布尔统计分布。所有的表面改性，特别是混合改性，均改善了碳纤维的拉伸强度和威布尔模量。结果显示，对于所有表面改性的PAN和沥青基碳纤维，Weibull模量与平均抗拉强度之间呈线性对数关系，呈对数对数比例。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号