分光光度计测试金红石型钛白粉遮盖力的方法研究  

Research on Testing Methods of Hiding Powers of Rutile Titanium Dioxide by Spectrophotometer

作　　者：李海艳[1] 汪云华[1] 王磊[1] 李保金[1] 崔庆雄[1] 龙翔[1] 

机构地区：[1]云南新立有色金属有限公司,云南昆明650100

出　　处：《中国粉体技术》2015年第2期21-23,共3页China Powder Science and Technology

基　　金：国家国际科技合作项目;编号:2010DFB43290;云南省科技计划项目;编号:2012ZE004

摘　　要：采用金红石型钛白粉为颜料,按照一定的配方及方法制备漆浆,利用湿膜制备样品,采用分光光度计进行样品反射率的检测,利用精确色彩品质控制软件直接表征样品的遮盖力,同时对影响遮盖力测试的关键因素进行优化。结果表明,采用丙烯酸清漆为漆料,在颜料体积分数为16%,振荡研磨时间为90 min,湿膜厚度为100μm的条件下,金红石型钛白粉漆浆样品适于采用分光光度计直接表征遮盖力的方法。Taking futile titanium dioxide as the pigment, the paste was prepared according to a certain formula and method. The wet film was used for sample preparation. A spectrophotometer was used for detection of the reflectivity of samples. The hiding power of samples was directly characterized by precise color quality control software. Key factors affecting the hiding power measurement were optimized. The results show that taking acrylic varnish as the paint vehicle, futile titanium dioxide paint slurry samples are suitable for the method of characterizing hiding power directly using spectrophotometer at the conditions that the volume fraction of pigment is 16%, the time for oscillatory grinding is 90 min, and the wet film thickness is 100 μm.

关 键 词：钛白粉 遮盖力 分光光度计 

分 类 号：TQ621.12[化学工程—精细化工]