Q235钢表面双硅烷复合膜的制备与性能表征  

Preparation of double silane composite film on Q235 steel and characterization of its properties

作　　者：孙振东 杨颜宁[1] 宋秋实 李庆鹏 许茜[1,4] 严川伟 SUN Zhen-dong;YANG Yan-ning;SONG Qiu-shi;LI Qing-peng;XU Qian;YAN Chuan-wei(School of Metallurgy,Northeastern University,Shenyang 110136,China)

机构地区：[1]东北大学冶金学院,辽宁沈阳110819 [2]沈阳工程学院,辽宁沈阳110136 [3]中国科学院金属研究所金属腐蚀与防护实验室,辽宁沈阳110016 [4]上海大学省部共建高品质特殊钢冶金与制备国家重点实验室,上海200072

出　　处：《电镀与涂饰》2019年第15期802-807,共6页Electroplating & Finishing

基　　金：辽宁省高等学校优秀人才支持计划（LR2015044）

摘　　要：在Q235钢表面制备了由γ?缩水甘油醚氧丙基三乙氧基硅烷(γ-GPS)和1,2?双(三乙氧基硅基)乙烷(BTSE)组成的双硅烷复合膜,并对其性质进行了表征。优化后的双硅烷复合膜固化工艺为:120°C温度下固化30 min。双硅烷复合膜的存在显著提高了Q235钢与环氧涂层之间的结合强度。中性盐雾试验和电化学阻抗谱测量结果均表明,双硅烷复合膜的存在还显著提高了环氧涂层的耐蚀性。A composite film composed ofγ-glycidoxypropyltrimethoxysilane(γ-GPS)and 1,2-bis(triethoxysilyl)ethane(BTSE)was prepared on Q235 steel surface and its properties were characterized.The curing process was optimized as follows:temperature 120°C and time 30 min.The double silane composite film greatly enhanced the adhesion between epoxy coating and Q235 steel substrate.Both the neutral salt spray test and electrochemical impedance spectroscopy showed that the existence of double silane composite film greatly improved the corrosion resistance of epoxy coating.

关 键 词：低碳钢 环氧树脂 硅烷化 附着力 耐蚀性 

分 类 号：TG174.461[金属学及工艺—金属表面处理] TG178[金属学及工艺—金属学]