Nano Effects of Helium Plasma Treatment Nano SiO2 Coating Kevlar Filaments

摘要：

The strain rate sensitivity of helium plasma treated Nano Silicon Dioxide particles sol-gel coating Kevlar filaments (HPTNSDPKEVLAR) and concurrent micro-structural evolution. The results of SEM observation and contact angle analysis showed that the treated Kevlar filament had a rougher surface and lower contact angles than the untreated one. According to the FTIR results, the change of wettability was attributable to the amount of polar functional groups on the fiber surface introduced by the treatments. Moreover, the changes of physico-mechanical properties by HPTNSDPKEVLAR were analyzed by using tensile test at different strain rates range from ranging from 0.01 s-1 to 0.6 s-1. It was found that the materials were strain rate sensitive, and both the tensile strength and failure strain increased with increasing strain rate. The dependence of yield stress by HPTNSDPKEVLAR with strain rate followed Eyrings equation, and may be characterized by implying the similarity in the onset of plastic deformation.

关键词： Strain rate sensitivity Microstructure Deformation Nano silicon Dioxide particles Plasma treated Kevlar filaments

作者: J. ZOU Y.C. ZHANG H.Y. WU Y.P. QIU

作者单位: College of Textiles, Donghua University, Shanghai 201620, China State key lab for modification of chemical fibers and polymer materials College of Textiles, Donghua College of Textiles, ZhongYuan University, Henan, Zhengzhou 450007, China State key lab for modification of chemical fibers and polymer materials College of Textiles, Donghua

会议类型: 国际会议

会议名称: 2008年中美材料国际研讨会

会议地点: 重庆

会议语种:英文

页码: 692-699

在线出版日期: 2008-06-09（万方平台首次上网日期，不代表论文的发表时间）