金红石型钛镍黄/硅气凝胶复合色料的制备及其隔热性能  

Preparation and Thermal Insulation Performance of High Near-Infrared Reflectance (Ni,Sb)–Co-Doped Rutile Yellow/Silica Aerogel Hybrid Pigment

作　　者：肖珺颖 潘志东[1] 陆有军[2] 王燕民[1,2] XIAO Junying;PAN Zhidong;LU Youjun;WANG Yanmin(School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,China;School of Material Science and Engineering,North Minzu University,Yinchuan,750021,China)

机构地区：[1]华南理工大学材料科学与工程学院,广州510640 [2]北方民族大学材料科学与工程学院,银川750021

出　　处：《硅酸盐学报》2023年第12期3177-3188,共12页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(52072125);佛山市科技创新项目(FS0AA–KJ419–4401–0098);佛山市重大科技项目(2016AG101415)。

摘　　要：采用固相法合成了高近红外(NIR)反射金红石型钛镍黄色料,并以SiO_(2)气凝胶为基体,制备一种网络状NIR反射金红石型钛镍黄/硅气凝胶复合色料,测定了其结构特征和呈色性能,并分析其NIR反射效应和隔热性能。结果表明,添加1%(质量分数)助烧剂NaF所固相合成的金红石型钛镍黄色料呈色性能(b*=54.24)和NIR反射性能优异;所制备的网络状金红石型钛镍黄/硅气凝胶复合色料具有良好呈色性能、低透过率、高NIR反射率(96.60%)和低导热系数[0.068 54 W/(m·K)],表明其具有优异的隔热性能。此外,还探讨了该复合色料的制备机制和隔热机理。(Ni,Sb)-codoped rutile yellow(NiSb–RTi) pigment with a high near-infrared(Near infrared,NIR) reflectance was prepared by a solid–phase method,and then(Ni,Sb)-codoped rutile/silica aerogel(NiSb-RTi/silica aerogel) hybrid pigment with a high NIR reflectance and a network structure was prepared with SiO_(2) aerogel substrate.The structural characteristics,color rendering performance,NIR reflectance,and thermal insulation performance of the hybrid pigment were characterized.The results show that NiSb–RTi pigment synthesized at 1%(in mass fraction) NaF as a sintering aid has superior color rendering performance(b*=54.24)and NIR reflectance.NiSb–RTi/silica aerogel hybrid pigment with a network structure has a good color rendering performance,a low transmittance,a high NIR reflectance(i.e.,96.60%) and a low thermal conductivity(i.e.,0.068 54 W/(m·K)),indicating a superior thermal insulation performance.In addition,the preparation process and thermal insulation mechanism of the hybrid pigment with a network structure were also discussed.

关 键 词：色料 近红外反射 气凝胶 隔热 

分 类 号：TQ[化学工程]