摘要
为提高铝合金耐腐蚀力,运用正交试验法研究在铝合金表面制备γ-(2,3-环氧丙氧)丙基三甲氧基硅烷(GPTMS)自组装膜最佳工艺条件,利用极化曲线和扫描电子显微镜研究该硅烷膜在铝合金表面的耐腐蚀性能。研究表明:最佳工艺条件为100mL溶液中,pH=4. 5,V(GPTMS)∶V(EtOH)∶V(H2O)=2∶7∶91,T1(水解温度)=25℃,t1(水解时间)=7 h,t2(浸涂时间)=10 min,t3(固化时间)=90 min,T2(固化温度)=120℃,该工艺条件下制备的硅烷膜具有优异的耐腐蚀性能。
The optimal process conditions for preparation of self-assembly film were designed by orthogonal experiment with γ-glycidoxypropyl trimethoxy silane(GPTMS)and the silane films were prepared on the surface of aluminum alloy to improve its corrosion resistance.The corrosion resistance of the optimal films on the surface of aluminum alloy was studied by polarization curveand scanning electron microscope(SEM). The results indicated that the optimal process conditions were as follows:the pH value of the solution 4. 5,V(GPTMS)∶V(EtOH)∶V(H2O)=2∶7∶91,T1(hydrolysis temperature)=25 ℃,t1(hydrolysis time)=7 h,t2(immersion time)=10 min,t3(curingtime)=90 min,T2(curing temperature)=120 ℃,The silane films on aluminum alloy in this condition provided good corrosion resistance.
作者
周洋
伏文
牛运峰
鲁道荣
Zhou Yang;Fu Wen;Niu Yunfeng;Lu Daorong(Shandong Branch of Huadian.Electric Power Research Institute Co.Ltd,Jinan 250002,China;School of Chemical Engineering,Hefei University of Tech nology,Hefei 230009,China)
出处
《涂料工业》
CAS
CSCD
北大核心
2020年第1期20-25,37,共7页
Paint & Coatings Industry
关键词
硅烷膜
铝合金
正交试验
耐腐蚀性能
表面形貌
silane flim
aluminum alloy
orthogonal experiment
corrosion resistance
surface mophology
