碳酸氢钠共沉淀法制备超细铜铬黑颜料  

Preparation of Superfine CuCr_2O_4 Black Pigment by NaHCO_3 Co-Precipitation Method

作　　者：白明敏 洪毓鸿 刘昆 常启兵 汪永清 BAI Mingmin HONG Yuhong LIU Kun CHANG Qibing WANG Yongqing(Key Laboratory of Jiangxi Universities for Inorganic Membrane, School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, Chin)

机构地区：[1]景德镇陶瓷大学材料科学与工程学院,江西省高校无机膜重点实验室,景德镇333403

出　　处：《中国陶瓷》2017年第7期55-60,共6页China Ceramics

摘　　要：以Cu(NO_3)_2·3H_2O、Cr(NO_3)_3·9H_2O为原料,NaHCO_3为沉淀剂,采用共沉淀法合成超细尖晶石型铜铬黑颜料。研究了沉淀剂浓度、煅烧温度对CuCr_2O_4结晶度、晶相纯度、粒径大小以及色度值的影响。通过X-射线衍射分析、扫描电镜图、粒度分析、色度值以及紫外-可见光吸收光谱分析得出,当碳酸氢钠浓度为0.3 mol/L,煅烧温度为800℃时可获得结晶完整、粒径细小、呈色性能好的CuCr_2O_4黑色颜料。Using Cu（NO3）2 · 3H：O, Cr（NO3）3 · 9H：O as raw materials, NaHCO3 as precipitant, spinel CuCr204 blackpigments were prepared by co-precipitation method. The influence of concentration of precipitant and calcinationtemperature on crystallinity, crystalline phase purity, particle size and chromaticity of Cuer204 were investigated. Bythe analysis of XRD, SEM, particle size, chroma and UV-Vis absorption spectrum, the results showed that CuCr2Ogblack pigments with high degree of crystallinity, small particle size and excellent color performance can be preparedwhen the concentration of NaHCO3 was 0.3 mol/L and calcined at 800℃ .

关 键 词：CuCr2O4 黑色颜料 共沉淀法 NAHCO3 

分 类 号：TQ174.45[化学工程—陶瓷工业]