Zn^(2+)掺加的包覆型Fe_(2)O_(3)/SiO_(2)颜料的制备及其呈色性能  

Preparation and Coloration of Fe_(2)O_(3)/SiO_(2) Coated Pigments Doped with Zinc Ions

作　　者：冯晋阳[1] 赵珂楠 范艺鋆 李凝芳[1] FENG Jinyang;ZHAO Kenan;FAN Yijun;LI Ningfang(State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学,硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《硅酸盐通报》2021年第6期2090-2095,共6页Bulletin of the Chinese Ceramic Society

基　　金：湖北省重点研发计划(2020BAB061)。

摘　　要：包覆型Fe_(2)O_(3)/SiO_(2)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Fe_(2)O_(3)/SiO_(2)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Fe_(2)O_(3)/SiO_(2)颜料呈色性能的影响。在此基础上,通过掺加Zn^(2)+,进行了Zn^(2)+掺加的包覆型Fe_(2)O_(3)/SiO_(2)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(SiO_(2))/m(Fe_(2)O_(3))为0.20,铁/锌摩尔比n(Fe)/n(Zn)为4时,制备得到的Zn^(2)+掺加的包覆型Fe_(2)O_(3)/SiO_(2)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。Due to the incomplete coating of Fe_(2)O_(3)/SiO_(2) pigment,the color of the pigment turns black and dark over 800℃.In this paper,the Fe_(2)O_(3)/SiO_(2) 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 Fe_(2)O_(3)/SiO_(2) 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(SiO_(2))/m(Fe_(2)O_(3))=0.20,iron/zinc molar ratio n(Fe)/n(Zn)=4.The heat resistance of the Fe_(2)O_(3)/SiO_(2) coated pigments doped with zinc ions is significantly improved,and the sample shows a bright orange red tone after 850℃ calcination.

关 键 词：铁红颜料 包覆型颜料 锌离子 呈色性能 耐热性 

分 类 号：TQ174.75[化学工程—陶瓷工业]