表面处理对Kevlar纤维复合材料界面结合强度的影响  

Effect of Fiber Surface Treatment on Interface Binding Strength of Kevlar Composites

作　　者：袁海根[1] 王汝敏[1] 艾涛[2] 

机构地区：[1]西北工业大学应用化学系,陕西西安710072 [2]西安航天复合材料研究所,陕西西安710025

出　　处：《化学推进剂与高分子材料》2005年第5期38-41,46,共5页Chemical Propellants & Polymeric Materials

摘　　要：为改善芳纶纤维增强树脂基复合材料的界面结合强度,用化学处理法对Kevlar-29纤维进行表面处理,并用傅里叶变换红外光谱和扫描电镜等方法对表面接枝进行鉴定,用单丝拔出试验表征芳纶纤维增强树脂基复合材料的界面结合强度。实验结果表明,纤维经过表面改性后,在单丝断裂强度降低不大的情况下,界面剪切强度显著提高。To improve the interfacial binding strength of composites based on aramid fiber reinforced resin, chemical method was used to treat the surface ofaramid fiber Kevlar-29.Fourier transform Infrared spectroscopy analysis method and SEM were employed to identify the surface graft situation of the treated fiber.Single fiber pull-out test was used to measure the interfacial binding strength of composites based on aramid fiber reinforced resin.Experimental resultes showed that surface treatment could improve the interfacial binding strength noticeably with a little influence on fracture strength of single fiber.

关 键 词：表面改性 芳纶纤维 单丝拔出试验 

分 类 号：TQ340.653[化学工程—化纤工业]