［Ni(NH3)6］2+为锚固剂制备SiO2包覆的水性铝颜料

doi:10.3969/j.issn.1000-1565.2016.02.006

河北大学学报(自然科学版) ›› 2016, Vol. 36 ›› Issue (2): 141-147.DOI: 10.3969/j.issn.1000-1565.2016.02.006

［Ni(NH₃)₆］²⁺为锚固剂制备SiO₂包覆的水性铝颜料

马志领,乔艳君,王献玲,姜震,张晨光

收稿日期:2015-06-23 出版日期:2016-03-25 发布日期:2016-03-25
作者简介:马志领(1964—),女,河北河间人,河北大学教授,主要从事阻燃及无机材料的研究. E-mail:zhilingma838838@163.com
基金资助:
国家自然科学基金资助项目(51302061);河北省自然科学基金资助项目(E2014201076)

Preparation of silica encapsulated waterborne aluminum pigments based on nickel ammonia complex ion as anchoring agent

MA Zhiling,QIAO Yanjun,WANG Xianling,JIANG Zhen,ZHANG Chenguang

College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China

Received:2015-06-23 Online:2016-03-25 Published:2016-03-25

摘要/Abstract

摘要： 采用［Ni(NH₃)₆］²⁺作为锚固剂制备SiO₂包覆的水性铝颜料.红外光谱和X线衍射表明［Ni(NH₃)₆］²⁺氧化金属铝在铝片表面形成勃姆石结构的羟基铝化合物.扫描电子显微镜,光学显微镜和耐腐蚀性能测试证明,pH在9.5左右,勃姆石可与正硅酸乙酯和硅烷偶联剂的水解产物结合,在铝片表面形成一层SiO₂膜,达到提高铝颜料耐腐蚀性的目的.

关键词: 包覆铝粉, 耐腐蚀性, 硅溶胶-凝胶法, 锚固剂, 水性铝粉颜料

Abstract: The silica encapsulated waterborne aluminum pigments were prepared using［Ni(NH₃)₆］²⁺ as anchoring agent.Fourier transform infrared spectroscopy and X-ray diffraction results showed that the boehmite was formed on the surface of aluminum flakes by［Ni(NH₃)₆］²⁺ oxidizing aluminum.The results of scanning electron microscopy,optical microscopy and corrosion resistance test proved that by controlling the pH of encapsulated media at about 9.5,the boehmite on aluminum flakes surface can react with silanols which come from the hydrolysis of tetraethoxysilane and silane. This makes a silica sol-gel film form on the aluminum flakes surface.This sol-gel film improves the corrosion resistance of the aluminum pigments.

Key words: silica encapsulated aluminum pigments, corrosion resistance, silica sol-gel method, anchorage mechanism, waterborne aluminum pigment

中图分类号:

TG174

马志领,乔艳君,王献玲,姜震,张晨光. ［Ni(NH₃)₆］²⁺为锚固剂制备SiO₂包覆的水性铝颜料[J]. 河北大学学报(自然科学版), 2016, 36(2): 141-147.

MA Zhiling,QIAO Yanjun,WANG Xianling,JIANG Zhen,ZHANG Chenguang. Preparation of silica encapsulated waterborne aluminum pigments based on nickel ammonia complex ion as anchoring agent[J]. Journal of Hebei University (Natural Science Edition), 2016, 36(2): 141-147.

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［Ni(NH₃)₆］²⁺为锚固剂制备SiO₂包覆的水性铝颜料

Preparation of silica encapsulated waterborne aluminum pigments based on nickel ammonia complex ion as anchoring agent

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