材料科学与工程学报2018，Vol.36Issue(2)：286-290,5.DOI:10.14136/j.cnki.issn1673-2812.2018.02.023
偶联剂改性纳米硅溶胶的接枝率及稳定性
Grafting Ratio and Stability of Nano Silica Sol Modification with Silane Coupling Agent
杨光 1邓安仲 1陈静波2
作者信息
- 1. 中国人民解放军陆军勤务学院,重庆 401311
- 2. 中国人民解放军62026部队,陕西西安 710032
- 折叠
摘要
Abstract
Surface modification of nano silica sol was performed so as to improve nano silica sol dispersion stability and affinity with organics.The influence of amount of silane coupling agent,reaction temperature and time on degree of grafting,dispersion stability and microstructure of modified silica sol were investigated.T he results indicate that alkaline nano silica sol is more suitable to be modified by silane coupling agent KH560.What's more,silane coupling agent KH560 was successfully grafted on surface of nano silica sol.The amount of silane coupling agent KH560 has greatest influence on degree of grafting in consideration of gradient of degree of grafting.Degree of grafting and absolute value of Zeta potential is 7.37% and 55.6mV respectively w hen amount of silane coupling agent K H 560 is 12.5%,reaction time is 5h and reaction temperature is 60℃.关键词
纳米硅溶胶/硅烷偶联剂/接枝改性/接枝率/影响机理Key words
silica sol/silane coupling agent/grafting modification/degree of grafting/influence mechanism分类
化学化工引用本文复制引用
杨光,邓安仲,陈静波..偶联剂改性纳米硅溶胶的接枝率及稳定性[J].材料科学与工程学报,2018,36(2):286-290,5.
