十二烷基苯磺酸钠辅助尿素共沉淀制备超细铜铬黑颜料  

Synthesis of ultrafine copper chromite black pigment by chemical coprecipitation using SBDS-assisted urea

作　　者：王伟文[1] 郑晓丹[1,2] 李平[2] 徐红彬[2] 张懿[2] 

机构地区：[1]青岛科技大学化工学院,山东青岛266061 [2]中国科学院过程工程研究所绿色过程与工程重点实验室,北京100190

出　　处：《化工学报》2013年第5期1847-1854,共8页CIESC Journal

基　　金：国家自然科学基金项目(51204154);国家高技术研究发展计划项目(2011AA060702)~~

摘　　要：以十二烷基苯磺酸钠为表面活性剂,采用尿素共沉淀法合成超细尖晶石型铜铬黑颜料。以铬和铜硝酸盐为原料,系统研究了沉淀剂、煅烧温度和表面活性剂等条件对铜铬黑颜料晶型、形貌和粒度的影响;并探讨了合成条件对铜铬黑颜料着色力的影响。研究表明,尿素和十二烷基苯磺酸钠可有效地控制形貌、颗粒大小及均匀性;在尿素用量为理论量4倍、表面活性剂添加量为5%、煅烧温度800℃的条件下制备出了形貌为六面体、平均粒径为300nm、粒径分布均匀、着色力优异的超细铜铬黑颜料。The ultrafine copper chromite black pigment（CuCr2O4）with spinel structure was prepared from chromium and copper nitrates by the chemical coprecipitation method,using sodium dodecyl benzene sulfonate（SDBS）as surface active agent and urea as precipitation agent.The effect of processing parameters,such as precipitation agent,calcination temperature and surface active agent on crystal structure,grain size and morphology of the CuCr2O4 was investigated,and the effect of processing parameters on its tinting strength was discussed.The results showed that urea and SDBS could effectively control grain size,morphology and crystal structure of the pigment.Ultrafine CuCr2O4 300 nm in size and with hexagonal structure was synthesized under the conditions of 400% theoretical amount of urea,5% SDBS and 800℃ of calcination temperature,and exhibited excellent tinting strength compared with commercial samples.

关 键 词：化学共沉淀法 尿素 十二烷基苯磺酸钠 铜铬黑 粒径 着色力 

分 类 号：TQ621.2[化学工程—精细化工]