钢结构的表面杂化膜制备与腐蚀性能研究

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基金项目:

“十一五”科技支撑计划（2007BA120B073）

Study on the Preparation and Corrosion Properties of Surfacing Hybrid Membrane of Building Steel Structure

1. Department of Infrastructure, Hebei Children's Hospital, Shijiazhuang 050031, China;
2. Central South University of Forestry and Technology, Changsha 410004, China

摘要: 采用不同体积比的乙烯基三甲氧基硅烷(VTOS)和双-[3-(三乙氧基)硅丙烷]四硫化物(BTESPT)溶液在建筑Q235钢结构表面制备了硅烷膜,对比分析了不同硅烷膜的阳极极化曲线和EIS曲线。结果表明,Q235钢结构基材组织为铁素体和珠光体;经过不同体积比VTOS硅烷修饰后,表面硅烷膜的腐蚀电位都发生了正向移动,且Q235+6% VTOS硅烷膜的腐蚀电位最正;BTESPT修饰的硅烷膜比VTOS修饰的硅烷膜有更好的耐腐蚀性能,可以对Q235钢基材起到更好的保护作用。
- Q235钢 /
- 杂化膜 /
- 制备 /
- 耐蚀性能
Abstract: Silane film was prepared on the surface of Q235 steel by different volume ratios of vinyl trimethoxysilane (VTOS) and double-[3- (triethoxysilyl) propane] four silicon sulfide (BTESPT) solution, and the anodic polarization curves and EIS curves of different silane films were compared and analyzed. The results show that the microstructure of Q235 steel base material is ferrite and pearlite; that the corrosion potential of silane films on the surface modified by VTOS of different ratios has undergone a positive move, and the corrosion potential of Q235 + 6% VTOS silane film is the most positive; that the silane film modified by BTESPT has better corrosion resistance than the silane film prepared by VTOS, which can protect the Q235 steel substrate better.
- Q235 steel /
- hybrid membrane /
- preparation /
- corrosion resistance