铝合金低乙醇含量硅烷化处理技术的研究

发布时间：2018-03-18 11:29

  本文选题：铝合金　切入点：硅烷化处理　出处：《表面技术》2015年05期 　论文类型：期刊论文

【摘要】：目的对硅烷偶联剂KH-550硅烷化改性铝合金的工艺进行优化,在不影响膜层性能的前提下,创新性降低乙醇含量,以满足工业化生产中安全、低成本的需求。方法采用单因素变量法,研究硅烷溶液中硅烷和乙醇的浓度、固化温度及固化时间等因素对硅烷膜耐蚀性的影响,由此确定最佳配方工艺,并分析硅烷膜的表面形貌、成分及疏水性。结果采用硅烷、去离子水、乙醇体积比为5∶55∶40的硅烷溶液,涂膜后,在180℃下加热40 min,能得到较完整均匀、耐蚀性较好的硅烷膜,膜层由C,O,Si等元素组成。硅烷浓度对硅烷膜的耐蚀性及表面接触角影响较大,在最佳工艺下获得的硅烷膜表面接触角可达70.2°。结论硅烷膜对铝合金基体具有一定的屏障作用,保护基体免受腐蚀。
[Abstract]:Objective to optimize the process of silane coupling agent KH-550 silane modified aluminum alloy, and to reduce the content of ethanol creatively without affecting the performance of the film, so as to meet the safety in industrial production. Methods the effects of the concentration of silane and ethanol in silane solution, curing temperature and curing time on the corrosion resistance of silane film were studied by single factor variable method. The surface morphology, composition and hydrophobicity of silane film were analyzed. Results Silane film was prepared by using silane, deionized water, and silane solution with the volume ratio of ethanol to ethanol at 5:55:40. After heating at 180 鈩，

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