界面化学反应对炭纤维/聚芳基乙炔复合材料界面性能的影响  

Influence of interfacial reaction on interfacial performances of carbon fiber and polyarylacetylene resin composites

作　　者：姜再兴[1] 黄玉东[1] 刘丽[1] 孙宝华[2] 

机构地区：[1]哈尔滨工业大学应用化学系,哈尔滨150001 [2]哈尔滨玻璃钢研究院,哈尔滨150036

出　　处：《固体火箭技术》2007年第6期537-540,共4页Journal of Solid Rocket Technology

基　　金：国家自然科学基金重点项目(50333030);黑龙江省杰出青年科学基金(JC04-12)

摘　　要：采用接枝含有双键的乙烯基三甲氧基硅烷(A-171)的方法对炭纤维(CF)进行了表面改性。接枝前后的炭纤维表面特性通过表面官能团滴定和表面能测量进行了表征。通过分析苯乙炔的三键与A-171的双键的反应程度,间接评价了芳基乙炔树脂的三键与A-171的双键的反应程度。CF/PAA复合材料的界面粘接性能通过断口形貌分析和层间剪切强度(σILSS)测试进行了评价。结果表明,芳基乙炔的三键与A-171的双键可发生化学反应,且反应程度很高。由于芳基乙炔的三键与A-171的双键在界面上的化学反应,使CF/PAA树脂复合材料的界面粘接性能明显提高,σILSS=43.3 MPa,比未处理试样提高了43%。The influence of interfacial reaction on interfacial performances of carbon fiber/polyarylacetylene（PAA） composite was studied by using the method of grafting coupling agent of vinyhrimethoxysilane （A-171） with double bond onto the surface of carbon fiber. The modified carbon fiber surface characteristics were examined by functional group titration and surface energy measurement. Based on the analysis of reactivity between the triple bond of phenylacetylene and the double bond of A-171, the reactivity between the triple bond of PAA resin and the double bond of A-171 was evaluated. The interfacial adhesion of CF/PAA composite was evaluated by fracture morphology analysis and interlaminar shear strength （σILSS） testing. The results indicate that the triple bond of PAA resin can react with the double bond of A-171, and the reactivity was high. Therefore, the interfacial adhesion of CF/ PAA composite was improved obviously, and σILSS can reach 43.3 MPa, which was increased by 43% compared with untreated one.

关 键 词：炭纤维 偶联剂 聚芳基乙炔树脂 界面化学反应 

分 类 号：TB332[一般工业技术—材料科学与工程]