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将铋离子应用于环氧体系阴极电沉积涂料中,从槽液参数、漆膜性能等方面分析了铋离子代替铅离子作为阴极电沉积涂料催化剂的优势,证明了铋离子应用于阴极电沉积涂料的可行性。 相似文献
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Thick cobalt coatings obtained by electrodeposition 总被引:1,自引:0,他引:1
Thick cobalt coatings (10–40 m) with a range of morphology and structure were obtained by electrodeposition on both vitreous carbon and copper electrodes. There is a direct relation between the morphology, structure and magnetic properties of cobalt deposits. A chloride medium at pH 4 and low deposition rates favoured the formation of black, ridge-like deposits of hexagonal close packed (h.c.p.) structure with mixed (100) + (110) preferred orientations. In CoCl2 at pH 4 at current densities in excess of –80 mA cm–2 and in CoSO4, dull grey deposits of h.c.p. (110) structure formed. Sulfate + citrate and chloride + citrate baths at pH 1.5 and very negative current densities promoted the formation of metallic grey deposits with face centred cubic (f.c.c.) structure. Constant saturation magnetization (M
s) was obtained for cobalt deposits independently of their structure (M
s = 160 emu g–1) although the coercive field (H
c) of the material varied: h.c.p. (100) > h.c.p. (110) > f.c.c. 相似文献
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讨论了分散剂在阴极电泳涂料中的作用,分析了其对研磨时间、贮存稳定性及色浆黏度等涂料性能的影响。结果表明,当分散剂用量为0.4%~0.5%时,各项性能指标达到最佳。 相似文献
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阴极电泳涂料与涂装的发展历程及趋势 总被引:2,自引:2,他引:0
介绍了国内外电泳涂装应用发展情况,并按泳透力、电泳工艺参数、环保性、涂膜的平滑性、耐腐蚀性等5方面的技术进步状况,推荐将阴极电泳涂料的发展历程暂划分三代。并预测了阴极电泳涂料与涂装的发展趋势。 相似文献
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有机熔盐电镀铝的研究进展 总被引:1,自引:0,他引:1
在有机熔盐电镀铝体系的构成、物理和电化学性质的基础上,对卤化烷基吡啶类、卤化烷基咪唑啉类、氯化烷芳基铵盐类电镀铝及铝合金的研究现状进行了阐述,并对这3种有机熔盐电镀铝体系的优缺点进行了归纳总结。最后,指出了有机熔盐电镀铝体系的应用前景和发展方向。 相似文献
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