摘要
通过沉降试验主要研究了聚乙二醇对纳米SiO2水悬浮液分散稳定性的影响，研究发现：聚乙二醇的分子量和含量、悬浮液的pH值及超声分散功率、所含电解质的浓度对纳米SiO2水悬浮液的分散稳定性都有显著影响。红外光谱分析表明：聚乙二醇是以氢键吸附在纳米SiO2颗粒表面，2者并没有发生化学反应。
The effects of polyethylene glycol on stability of nano silica in aqueous suspension were investigated by sedimentation experiment, and the results indicated that the stability of nano silica aqueous suspension was related remarkably to the molecular weight and content of polyethylene glycol, the pH value and ultrasonic power, as well as the concentration of electrolyte of （NH4）2S04. The infrared adsorption spectrum analysis showed that the adsorption between the polyethylene glycol and nano -sized silica was formed by hydrogen bonding, between which no chemical reactions occurred.
出处
《装甲兵工程学院学报》
2007年第3期74-77,共4页
Journal of Academy of Armored Force Engineering
关键词
聚乙二醇
纳米SIO2
颗粒
分散
吸附
polyethylene glycol
nano silica particle
dispersion
adsorption
