钛白粉的Zeta电位对丙烯酸乳胶漆应用性能的影响  

Effect of Zeta Potential of Titanium Dioxide on Its Application Performance in Acrylic Latex Paint

作　　者：顾勇 杜茂平 徐新春 钱蕾 Gu Yong;Du Maoping;Xu Xinchun;Qian Lei(Nanjing Titanium Dioxide chemical Co.,Ltd.,Nanjing,Jiangsu 210047,China)

机构地区：[1]南京钛白化工有限责任公司,江苏南京210047

出　　处：《涂料工业》2020年第11期81-83,88,共4页Paint & Coatings Industry

摘　　要：本文采用Nano Zs-90型Zeta电位仪对不同硅铝包膜金红石型钛白粉的Zeta电位进行研究,通过测试不同等电点pH的钛白粉颜料制备的丙烯酸乳胶漆的分散、遮盖、耐候性、光泽等主要性能指标,来指导丙烯酸乳胶漆用钛白粉的生产。结果表明钛白粉的硅铝包膜量、pH以及电阻率对钛白粉的Zeta电位有非常大的影响,较高SiO2包膜的钛白粉可降低等电点pH,提高丙烯酸乳胶漆的分散性、遮盖力和耐候性。The Nano Zs-90 Zeta Potentiometer was used to study the Zeta potential of different silicon-aluminum coated rutile titanium dioxide.The dispersion,hiding power,weather resistance,gloss and other properties of acrylic latex paint containing titanium dioxide pigments with different isoelectric points and p H values were tested,which was used to direct the production of titanium dioxide for acrylic latex paint was.The results showed that the amount of silicon-aluminum coat,p H value,and resistivity of titanium dioxide provided a significant effect on the zeta potential of titanium dioxide.Titanium dioxide coated with higher SiO2 amount could decrease the p H value and the isoelectric point and improve the properties of dispersion,hiding power and weatherability of acrylic latex paint.

关 键 词：ZETA电位 钛白粉 丙烯酸乳胶漆 应用性能 

分 类 号：TQ630.71[化学工程—精细化工]