摘要
采用SEM观察不同纺丝工艺的日本和国产碳纤维的表面及断口形貌,从结构上对比分析它们的差异,结果表明,表面缺陷减少,内部致密性提高,轴向微孔尺寸减小都是碳纤维强度提高的主要原因。国产干喷湿纺碳纤维表面缺陷和内部缺陷明显减少,有助于提高纤维拉伸强度。另外,洁净的生产环境及精细加工的设备有利于碳纤维缺陷的减少,使纤维拉伸强度提高的空间变大。
Surface and fracture morphologies of carbon fibers prepared in Japan and China were observed by SEM.And the structure differences were analyzed.The results show that tensile strength of carbon fibers can be improved by descreasing the surface flaw,raising the internal compactness and reducing the size of axial micropores.The flaws of both inside and surface of homemade carbon fibers prepared by dry-jet wet spinning technology were minished,and it is beneficial to raise the tensile strength of carbon fibers.In addition,it is advantageous to lower the flaws in clean production condition and precision processing equipments.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2010年第10期1731-1733,共3页
Journal of Functional Materials
基金
国家自然科学基金资助项目(50673052)
国家重点基础研究发展计划(973计划)资助项目(2006CB605314)
关键词
碳纤维
表面
断口
SEM
carbon fiber
surface
fracture
SEM
