摘要
设计了一种改性纳米TiO2方法,先用带双键官能团的硅烷偶联剂WD-70和纳米TiO2反应后,在颗粒表面引入可聚合官能团,然后和甲基丙烯酸甲酯、丙烯酸丁酯共聚合使纳米TiO2颗粒改性.研究结果表明,改性提高了纳米颗粒在涂料中的分散程度,降低了涂层的吸水性和透气性.
A method is designed to modify nano-TiO2 particles, by which nanoparticles are modified by silane coupling agent WD-70 with double bond group and then the silane coupling agent copolymerizes with methyl methacrylate and butyl acrylate to produce a thin polymer shell on the nanoparticles. The modified nanoparticles are applied as pigment to polyacrylate coating. The modification of nano-TiO2 can improve its dispersibility in the coating and thereby reduce water absorption and permeability of the polyacrylate coating.
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2007年第1期58-60,共3页
Corrosion Science and Protection Technology
关键词
纳米TIO2
改性
丙烯酸涂料
吸水
透气性
nano-TiO2
modification
polyacrylate coating
water absorption
permeability
