对钢表面进行了氧化预处理,采用扫描电镜、能谱和红外光谱研究了钢/氧化层/硅烷层/环氧涂层体系的界面结合特征,通过与未经氧化预处理的体系进行比较,研究氧化层对硅烷聚合方式、界面构象以及成键方式的影响.结果表明:钢表面氧化后,拉伸剪切破坏主要发生在硅烷/涂层界面,而未经氧化预处理的试样,弱相界面位于钢/硅烷界面.氧化层可以抑制硅烷自身的缩聚,促进硅烷在钢表面的定向吸附,显著提高钢/涂层界面结合强度.
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