影响钛白粉在涂料中光泽度的因素分析
Analysis of factors affecting the gloss of titanium dioxide in coatings
邹勇 1李纲 1李礼 1柯良辉 2陈新红2
作者信息
- 1. 重庆理工大学化学化工学院,重庆 400054
- 2. 攀钢集团重庆钛业有限公司,重庆 401319
- 折叠
摘要
针对国内外钛白粉在应用性能上的差异,采用SEM、TEM、EDS、XPS和FTIR等分析手段对不同钛白粉产品GT1,GT2和MT的微观结构进行表征,研究钛白粉在涂料中光泽度的影响因素.结果表明,MT粒径集中分布在0.1～0.5 μm,平均粒径为0.249 μm;表面包膜完整度高,包膜层厚度为1.2～4.5 nm;表面羟基含量较高,吸油量和比表面积低,在涂料中的分散性较好.正是因为国外钛白粉MT的表面结构优于GT1和GT2,从而使得MT在涂料中的光泽度高于国内钛白粉产品GT1和GT2.
Abstract
Aiming at the differences in the application performance of titanium dioxide at home and abroad,the morphology of different titanium dioxide products including GT1,GT2 and MT were ana-lyzed by SEM,TEM,EDS,XPS and FTIR.The influencing factors of the glossiness of titanium diox-ide in coatings were studied.The results show that the MT particle size is centrally distributed in the range of 0.1-0.5 μm,with a mean particle size of 0.249 μm.The MT surface envelope has a high degree of integrity,with the thickness of the envelope layer ranging from 1.2 to 4.5 nm.The MT surface has a high hydroxyl content,with low oil absorption and specific surface area,and good dispersion in the coating.This is because the surface structure of foreign titanium dioxide MT is better than that of GT1 and GT2,so that the gloss of MT in coatings is higher than that of domestic titanium dioxide products GT1 and GT2.
关键词
二氧化钛/表面结构/光泽度/包膜完整度/粒径Key words
titanium dioxide/surface composition/gloss/envelope integrity/particle size引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据