期刊
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
卷 38, 期 3, 页码 416-424出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01932691.2016.1172969
关键词
Foam; nanoparticles; stability; oil
资金
- Ministry of Higher Education (MOHE), Malaysia
The influence of silica nanoparticles on the bulk stability of SDS-foam in the presence of oil was investigated in this study using KRuSS dynamic foam analyzer. The bulk foam static stability was evaluated from half-decay time, liquid drainage, bubble size distribution, and change in total height and volume of the generated foams with respect to time. Results clearly showed that foam stability in the presence of oil mainly depends on the viscosity and density of the oil. Foam stability increased with the addition of silica nanoparticles due to the aggregation of the nanoparticles at the thin lamellae of the foam, which prevents spreading of the oil at the gas-liquid interface. Moreover, optimum foam stability was obtained with the modified nanosilica-SDS mixtures, while slower liquid drainage from the foam did not generally result in high foam stability.
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