碳纳米管含量对环氧树脂涂层性能的影响研究  

Effect of Carbon Nanotube on Properties of Epoxy Coating

作　　者：张娟[1] 刘自强[1] 冯涛[1] 温世峰[1] 陈瑞卿[1] ZHANG Juan LIU Ziqiang FENG Tao WEN Shifeng CHEN Ruiqing(Advanced Material Test Center, School of Mechanics, Civil ＆ Architecture, Northwestern Polytechnical University, Xi＇an 710129, China)

机构地区：[1]西北工业大学力学与土木建筑学院先进材料测试中心,西安710129

出　　处：《中国腐蚀与防护学报》2017年第3期254-260,共7页Journal of Chinese Society For Corrosion and Protection

基　　金：国家自然科学基金(51405391和51402238);中央高校基本科研业务费专项资金(3102015ZY034;3102015ZY033和3102015ZY032);陕西省自然科学基础研究计划项目(2014JQ1005)~~

摘　　要：以环氧树脂为基料,氨基硅烷为固化剂,气相Si O2为分散助剂,碳化二亚胺为改性助剂,制备了不同碳纳米管含量的环氧树脂涂层。采用拉拔法测附着力,球盘磨损测耐磨性,电化学和丝状腐蚀测耐蚀性,全面评价了碳纳米管含量对环氧树脂涂层性能的影响。结果表明:碳纳米管含量为2%(质量分数)时就能显著提高环氧树脂涂层的附着力、耐磨性和耐蚀性,同时增强涂层的导电性。当碳纳米管含量为5%和7%时,涂层的附着力和耐磨性进一步提高;当碳纳米管含量为10%时,涂层的附着力和耐磨性开始略微下降,但耐蚀性和导电性达到最佳状态。Epoxy coatings with different mass fraction of carbon nanotube（CNT） is prepared with epoxy as matrix,amine silane as curing agent,fumed silica as disperse dispersant,and carbodiimide as modifying agent.The effect of CNT amount on properties of epoxy coating is overall evaluated by means of pull-off adhesion test,ball-on-disk ear test,electrochemical impedance spectroscopy（EIS） and filiform corrosion test.The results show that,the adhesion strength,abrasion resistance and corrosion resistance are improved remarkable for the epoxy coating with 2%（mass fraction） of CNT in comparison to that without CNT addition.All the above mentioned properties are further improved for the epoxy coating with 5% and 7% of CNT.Furthermore,when the epoxy coating with the addition of CNT is up to 10%,of which the adhesion strength and abrasion resistance decreased,while the corrosion resistance and conductivity reach the optimum.

关 键 词：碳纳米管 环氧树脂涂层 附着力 摩擦 腐蚀 电化学阻抗谱 

分 类 号：TQ630[化学工程—精细化工]