摘要
为了研究纳米颗粒对泡沫稳定性产生影响的原因,对不同改性程度的纳米SiO2颗粒悬浮液浓度、亲油化度、黏度、聚集体半径、表面张力与泡沫稳定性之间的关系展开了实验。通过向纳米SiO2颗粒悬浮液中加入不同浓度的己胺,使二氧化硅颗粒表面改性,并对改性后的悬浮液流变性及其产生的泡沫稳定性进行测量。实验结果表明,由于聚集体半径增大破坏泡沫,使改性剂浓度有极大值,对应泡沫稳定性最高。己胺浓度一定时,二氧化硅颗粒含量越多,泡沫稳定性越高。随改性剂浓度增加,悬浮液黏度有极大值,而悬浮液黏度与泡沫稳定性表现出良好的相关程度。
The relationship between concentration,lipophilicity,viscosity,aggregation radius,surface tension and foam stability of different modified SiO2 nanoparticles suspension was studied in order to reach the influence of nano particles on the stability of foams and foam films.The surface of silica particles was modified by adding different concentrations of hexylamine into the suspension.The rheology of modified solution and the foam stability were measured.Experimental results showed that the concentration of the modifying agent had a maximum value due to the increase of the aggregates radius to break the foam,corresponding to the maximum foam stability.When the concentration of hexylamine was constant,the higher the silica particle content,the higher the foam stability.With the increasing of modifier concentration,the viscosity of the suspension showed a good correlation with foam stability.
作者
岳野
YUE Ye(Northeast Petroleum University,Heilongjiang Daqing163453,China)
出处
《当代化工》
CAS
2020年第3期597-600,共4页
Contemporary Chemical Industry
作者简介
岳野(1988-),男,黑龙江省大庆市人,助理工程师,2010年毕业于东北石油大学石油工程,E-mail:yy2018@163.com。
