期刊
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
卷 36, 期 6, 页码 755-764出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01932691.2014.921189
关键词
Colloid; DLVO theory; model; nanoparticle; orientation; roughness
This study investigated the effect of the orientation of rough nanoparticles on Derjaguin and Landau, Verwey and Overbeek (DLVO) energy interaction. Rippled sphere model was used to survey van der Waals attraction energy and repulsive double-layer interaction energy between nanoparticles. The effect of particle size, asperity size, number of asperities, and concentration was studied for different orientations. Spherical coordinates were used to evaluate the effect of changes in orientation under controlled conditions. Surface element integral method was used to calculate DLVO energy interactions between rough particles at specific orientations. The DLVO energy results show that a change in orientation significantly affected the stability of the nanoparticles. The stability of dispersion varied as the contact surface between nanoparticles changed.
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