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硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (6): 2090-2095.

• 新型功能材料 • 上一篇    下一篇

Zn2+掺加的包覆型Fe2O3/SiO2颜料的制备及其呈色性能

冯晋阳, 赵珂楠, 范艺鋆, 李凝芳   

  1. 武汉理工大学,硅酸盐建筑材料国家重点实验室,武汉 430070
  • 收稿日期:2021-01-20 修回日期:2021-03-14 出版日期:2021-06-15 发布日期:2021-07-08
  • 作者简介:冯晋阳(1969—),男,博士,副研究员。主要从事玻璃、陶瓷装饰材料的开发。E-mail:fjy@whut.edu.cn
  • 基金资助:
    湖北省重点研发计划(2020BAB061)

Preparation and Coloration of Fe2O3/SiO2 Coated Pigments Doped with Zinc Ions

FENG Jinyang, ZHAO Kenan, FAN Yijun, LI Ningfang   

  1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
  • Received:2021-01-20 Revised:2021-03-14 Online:2021-06-15 Published:2021-07-08

摘要: 包覆型Fe2O3/SiO2颜料由于包覆完整性并不理想,该颜料高于800 ℃时呈色会产生变黑、变暗的问题。采用溶胶-凝胶法制备包覆型Fe2O3/SiO2颜料,研究催化剂浓度、反应温度、硅/铁质量比等因素对包覆型Fe2O3/SiO2颜料呈色性能的影响。在此基础上,通过掺加Zn2+,进行了Zn2+掺加的包覆型Fe2O3/SiO2颜料的呈色性能研究。研究表明,当催化剂(氨水)浓度为0.75 mol/L,反应温度为40 ℃,硅/铁质量比m(SiO2)/m(Fe2O3)为0.20,铁/锌摩尔比n(Fe)/n(Zn)为4时,制备得到的Zn2+掺加的包覆型Fe2O3/SiO2颜料的呈色耐热性能获得明显提升,样品在850 ℃煅烧后仍然呈现出明亮的红橙色色调。

关键词: 铁红颜料, 包覆型颜料, 锌离子, 呈色性能, 耐热性

Abstract: Due to the incomplete coating of Fe2O3/SiO2 pigment, the color of the pigment turns black and dark over 800 ℃. In this paper, the Fe2O3/SiO2 coated pigments were prepared by sol-gel method, and then the effects of catalyst concentration, reaction temperature, mass ratio of silicon/iron and other factors on the coloration of pigments were investigated. On this basis, the coloration of the Fe2O3/SiO2 coated pigments were studied by doping with zinc ions. The results show that the proper condition of synthetic reaction is the catalyst (ammonia) concentration 0.75 mol/L, the reaction temperature 40 ℃, the silicon/iron mass ratio m(SiO2)/m(Fe2O3)=0.20, iron/zinc molar ratio n(Fe)/n(Zn)=4. The heat resistance of the Fe2O3/SiO2 coated pigments doped with zinc ions is significantly improved, and the sample shows a bright orange red tone after 850 ℃ calcination.

Key words: iron red pigment, coated pigment, zinc ion, coloration, heat resistance

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