聚酯树脂涂料用金红石型钛白粉的表面改性及性能研究  

Surface Modification and Performance Study of Rutile Titanium Dioxide for Polyester Resin Coatings

作　　者：刘晓玉 李守阳 肖菲 马文 孙铭璞 Liu Xiaoyu;Li Shouyang;Xiao Fei;Ma Wen;Sun Mingpu(Shandong Dawn Titanium Industry Co.,Ltd.,Longkou,Shandong 265700,China;School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao,Shandong 266042,China)

机构地区：[1]山东道恩钛业股份有限公司,山东龙口265700 [2]青岛科技大学高分子科学与工程学院,山东青岛266042

出　　处：《涂料工业》2024年第1期44-49,共6页Paint & Coatings Industry

摘　　要：为提高金红石型钛白粉的在聚酯树脂涂料中的应用性能,采用湿法包膜的方式在二氧化钛表面构筑了三层结构对其进行表面改性,制备了改性钛白粉P-Zr-Al/TiO_(2)。采用X射线荧光光谱(XRF)、透射电镜(TEM)表征了改性钛白粉的结构与性质,并测试了粉体的颜料性质评价其包覆效果。结果表明:当选用六偏磷酸钠作为磷包膜剂以及锆-硫酸的锆包覆工艺时,金红石钛白粉具有较好的光学性质,L^(*)值为98.89、遮盖率为85.52%、吸油量为17.5 g/100 g。同时应用的聚酯树脂涂膜经过240 h曝晒雨淋的模拟环境后,失光率为47.3%,ΔE为0.84,具有较好的耐候性。In order to improve the performance of rutile titanium dioxide(TiO_(2))in polyester resin coatings,a three-layer structure was constructed on the TiO_(2)surface by wet coating method to prepare the modified TiO_(2)(P-Zr-Al/TiO_(2)).XRF and TEM were used to characterize the structure and properties of modified TiO_(2),and the pigment properties of the powder were tested to evaluate its wrapping effect.The results showed that the rutile TiO_(2)modified by zirconium-sulfuric acid coating process using sodium hexametaphosphate as phosphorus coating agent had good optical properties,with L^(*) value of 98.89,hiding rate of 85.52%,and oil absorption of 17.5 g/100 g.After exposure to the simulated environment of sunlight and rain for 240 h,the light loss rate of polyester resin coating was 47.3%and theΔE was 0.84.

关 键 词：钛白粉 聚酯树脂涂料 表面改性 无机包覆 耐候性 

分 类 号：TQ621.12[化学工程—精细化工]