表面处理对PA6/CF复合材料力学性能与破坏形态的影响  

EFFECT OF CF SURFACE TREATING ON THE MECHANICAL PROPERTIES AND FAILURE MORPHOLOGY OF PA6/CF COMPOSITES

作　　者：林志勇[1] 林金清[1] 曾汉民[2] 

机构地区：[1]华侨大学材料科学与工程学院,泉州362011 [2]中山大学聚合物复合材料及功能材料教育部重点实验室,广州510275

出　　处：《工程塑料应用》2005年第7期4-6,共3页Engineering Plastics Application

基　　金：国家自然科学基金资助项目(59602007);福建省自然科学基金资助项目(E0210022)

摘　　要：通过碳纤维(CF)表面官能团的酰氯化,利用酰氯作为己内酰胺阴离子聚合的活化剂,成功地制备了表面接枝尼龙6(PA6)的CF。研究了表面己内酰胺稳定化并阴离子接枝PA6的CF对PA6/CF复合材料力学性能与破坏形态的影响。结果表明,表面接枝PA6后的PA6/CF复合材料界面相互匹配,改善了复合材料界面的相互作用,提高了复合材料的剪切强度,复合材料剪切破坏呈部分非界面脱粘破坏。Nylon 6 (PA6) was grafted onto carbon fiber (CF) surface by transforming —COOH,—OH on CF surface to CF —COCl which was an effective activating agent in PA6 polymerization. The effect of surface treating on the mechanical properties and failure morphology of PA6/CF composites was investigated. The results showed that the CF with grafting PA6 on its surface promoted the interphase match in PA6/CF composites. The interface interaction between CF and PA6 matrix was improved, the shear strength of PA6/CF composites was increased, and the shear failure morphology of PA6/CF composites was non-interface destroy.

关 键 词：碳纤维复合材料 表面官能团 力学性能 破坏形态 界面反应 树脂 

分 类 号：TQ32[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]