陕西科技大学学报（自然科学版）2016，Vol.34Issue(3)：111-115,5.
KH-570改性纳米SiO2及其在外墙涂料中的应用研究
The study on exterior latex paint of modified nano-SiO2 with KH-570
摘要
Abstract
The surface of nano-SiO2 particles was modified with silane coupling agent 3-(methacryloyloxy)propyltrimethoxysilane (KH-570)under acidic condition.The surface structure of the modified nano-SiO2 was investigated by dynamic laser light scattering (DLLS),fourier transform infrared spectroscopy (FTIR)and transmission electron micro-scope (TEM).Meanwhile,the effects of modified nano-SiO2 content to mechanical properties and washability performance of paint for exterior wall were studied.FTIR spectrum showed that,silane coupling agent KH-570 successfully modified nano-SiO2 particles,and modified nano-SiO2 particle size down to 78 nm,agglomeration also decreased significantly,when the nano-SiO2 content was 10%,the water contact angle of film surface was increased to 71°,and its water absorption also was reduced to 14.01%,and the tensile stress was rised to 0.71 MPa.Moreover,the analysis of washability test showed that the addition of nano-SiO2 im-proved washability performance of the latex film significantly.关键词
纳米二氧化硅/KH-570/改性/外墙涂料Key words
nano-SiO2/KH-570/modified/paint for exterior wall分类
化学工程引用本文复制引用
杨晓武,李鑫,陈洪伟,秋列维,姬定西..KH-570改性纳米SiO2及其在外墙涂料中的应用研究[J].陕西科技大学学报（自然科学版）,2016,34(3):111-115,5.基金项目
国家自然科学基金项目(51373091) （51373091）
陕西科技大学博士科研启动基金项目(BJ12-08) （BJ12-08）
陕西科技大学学科人才培养计划项目(XSGP201212) （XSGP201212）
