首页> 美国卫生研究院文献>Science and Technology of Advanced Materials >Electrodeposition of zinc–silica composite coatings: challenges in incorporating functionalized silica particles into a zinc matrix
【2h】

Electrodeposition of zinc–silica composite coatings: challenges in incorporating functionalized silica particles into a zinc matrix

机译:锌-二氧化硅复合涂层的电沉积:将功能化的二氧化硅颗粒掺入锌基质中的挑战

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Zinc is a well-known sacrificial coating material for iron and co-deposition of suitable particles is of interest for further improving its corrosion protection performance. However, incorporation of particles that are well dispersible in aqueous electrolytes, such as silica particles, is extremely difficult. Here, we report a detailed study of Zn–SiO2 nanocomposite coatings deposited from a zinc sulfate solution at pH 3. The effect of functionalization of the silica particles on the electro-codeposition was investigated. The best incorporation was achieved for particles modified with SiO2–SH, dithiooxamide or cysteamine; these particles have functional groups that can strongly interact with zinc and therefore incorporate well into the metal matrix. Other modifications (SiO2–NH3+, SiO2–Cl and N,N-dimethyldodecylamine) of the silica particles lead to adsorption and entrapment only.
机译:锌是公知的用于铁的牺牲涂层材料,并且合适的颗粒的共沉积对于进一步改善其腐蚀防护性能是有意义的。但是,将很难分散在水性电解质中的颗粒例如二氧化硅颗粒掺入是非常困难的。在这里,我们报告了在pH 3下从硫酸锌溶液中沉积的Zn-SiO2纳米复合涂层的详细研究。研究了二氧化硅颗粒的功能化对电共沉积的影响。对于用SiO2-SH,二硫代草酰胺或半胱胺改性的颗粒,掺入效果最佳。这些颗粒具有可以与锌强烈相互作用的官能团,因此可以很好地结合到金属基质中。二氧化硅颗粒的其他改性(SiO2-NH3 + ,SiO2-Cl和N,N-二甲基十二烷基胺)仅导致吸附和截留。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号