| TEOS/MTES协同水解包覆铝颜料的研究 |
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| 引用本文： | 陈坤,皮丕辉,文秀芳,蔡智奇,郑大锋,程江,杨卓如. TEOS/MTES协同水解包覆铝颜料的研究[J]. 电镀与涂饰, 2011, 30(12): 58-62 |
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| 作者姓名： | 陈坤 皮丕辉 文秀芳 蔡智奇 郑大锋 程江 杨卓如 |
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| 作者单位： | 华南理工大学化学与化工学院,广东广州,510640 |
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| 基金项目： | 国家自然科学基金，中央高校基本科研业务费专项资金 |
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| 摘 要： | 以正硅酸乙酯(TEOS)和甲基三乙氧基硅烷(MTES)为前驱物、氨水为催化剂,通过溶胶-凝胶反应在铝颜料表面形成了薄而致密的有机-无机包覆层.研究了影响成膜形态的反应因素以及包覆产物的耐酸性.结果发现,当TEOS、MTES、氨水和水的乙醇溶液同时滴入铝颜料溶液,并控制反应配比为铝颜料2 g、MTES 3 g、TEOS ...
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| 关 键 词： | 铝颜料 二氧化硅 溶胶-凝胶 包覆 耐酸性 |
Research on TEOS/MTES cooperated hydrolysis for coating aluminum pigments |
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| CHEN Kun,PI Pi-hui,WEN Xiu-fang,CAI Zhi-qi,ZHENG Da-feng,CHENG Jiang,YANG Zhuo-ru. Research on TEOS/MTES cooperated hydrolysis for coating aluminum pigments[J]. Electroplating & Finishing, 2011, 30(12): 58-62 |
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| Authors: | CHEN Kun PI Pi-hui WEN Xiu-fang CAI Zhi-qi ZHENG Da-feng CHENG Jiang YANG Zhuo-ru |
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| Affiliation: | School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 511640,China |
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| Abstract: | A thin and compact organic-inorganic coated film was prepared on the surface of aluminum pigment by sol-gel reaction with tetraethyl orthosilicate(TEOS) and methyltriethoxysilane(MTES) as precursors and ammonia as catalyst.The reaction factors affecting the film formation and the acid-proof behavior of encapsulated aluminum pigment were studied.Hydrogen is not evolved when the encapsulated aluminum pigment is immersed in sulfuric acid solution of pH = 1 for 300 min,which was prepared by simultaneously dropping the alcohol solutions of TEOS,MTES,ammonia and water into the aluminum pigment solution with a mass ratio of pigment,MTES,TEOS,ammonia and water equal to 2:3:2:6:10 after reaction at 50℃ for 6 h. |
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| Keywords: | aluminum pigment silica sol-gel coating acid resistance |
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