硅酸盐学报2012，Vol.40Issue(10)：1431-1436,6.
多壁碳纳米管在水泥浆中的分散性
Reseach on Disperion of Multi-Walled Carbon Nanotubes in Cement Paste
摘要
Abstract
The dispersion of multi-walled carbon nanotubes(MWCNTs) in water and cement paste was carried out with various surface active agents like polycarboxylate superplasticizer(Ad),poly vinyl pyrrolidone(PVP) and washing powder(XYF) under ultrasounding.The relevant effect on the compressive strength of composition with MWCNTs and cement was investigated.The dispersion of MWCNTs in water and cement paste was analyzed by directly accounting and scanning electron microscopy(SEM).The results show that the MWCNTs can aggregate readily either in water or in cement paste,exhibiting a poor reinforce ability,when the Ad is only used as a surface active agent even with ultrasonic assistance.The PVP and XYF with ultrasonic assistance could improve the dispersion of MWCNTs both in water and cement paste.The PVP could increase the compressive strength.However,the XYF decreased the strength evidently because the XYF could produce the more air bubbles in the cement paste and increase the hole dimension,causing a lower density of hardened cement.关键词
多壁碳纳米管/水泥浆/分散性Key words
multi-walled carbon nanotubes/cement paste/dispersion分类
建筑与水利引用本文复制引用
朱洪波,王培铭,李晨,柳献,杨坪,曹晓润..多壁碳纳米管在水泥浆中的分散性[J].硅酸盐学报,2012,40(10):1431-1436,6.基金项目
光华同济土木学院基金 （）
国家自然科学基金（41002093）资助 （）
