INFLUENCE OF THE SURFACE-CHEMISTRY ON THE WETTABILITY OF STAINLESS-STEEL
INFLUENCE OF THE SURFACE-CHEMISTRY ON THE WETTABILITY OF STAINLESS-STEEL
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DOI：
10.1002/sia.740210902
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发表时间：
1994-09-01
影响因子：
1.7
通讯作者：
WIGHTMAN, JP
中科院分区：
文献类型：
--
作者：
MANTEL, M;WIGHTMAN, JP
用溶剂脱脂、化学蚀刻、抛光、氧气和Ar等离子体处理以及加热和干燥可产生含有不同量有机污染物和“结合水”的不锈钢表面。不锈钢箔上形成的钝化膜的氢氧化物/氧化层也受到表面处理的影响。用化学分析电子能谱(ESCA)分析了不同清洗工艺后形成的表面膜的成分。304不锈钢薄片上的有机污染可以通过各种清洁处理减少到原来的1/5。对处理后的表面进行了润湿性或表面能的测量，发现金属的表面能随污染层厚度的增加而衰减。由于这些清洗处理导致了不同的氧化层，因此得出结论：氧化层的性质不是决定金属表面自由能的主要参数。
Degreasing with solvents, chemical etching, polishing, oxygen and argon plasma treatment and heating and drying produce stainless-steel surfaces with different amounts of organic contamination and 'bonded water'. The hydroxide/oxide layer of the passive film formed on stainless-steel foils is also affected by surface pretreatment. Electron spectroscopy for chemical analysis (ESCA) has been used to analyze the composition of the surface film formed after different cleaning procedures. Organic contamination on 304 stainless-steel foils can be reduced by a factor of five using various cleaning treatments. Wettability or surface energy measurements have been performed on the treated surfaces and it was found that the surface energy of the metal decays with the inverse of the contamination layer thickness. As these cleaning treatments lead to different oxide layers, it is concluded that the nature of the oxide layer is not the main parameter that determines the surface free energy of metals.