화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 봄 (04/23 ~ 04/25, 제주ICC)
권호 14권 1호, p.1104
발표분야 이동현상
제목 Electrostatic Repulsive Energy Calculation between Two Cylindrical Particles Suspending in a Monovalent Ionic Solution
초록 The electrostatic repulsive energy between two cylindrical particles was calculated with the consideration of their orientation. The electrostatic energies were calculated by solving nonlinear Poission-Boltzmann (P-B) equation numerically with the assumption of Derjaguin approximation. Due to the anisotropy of the cylindrical shape, the interaction repulsive energy varied drastically with respect to their configurations. For the model cylindrical particles with unit length, cylinders aligned in the end-to-end configuration showed largest repulsive energy and crossed particles had lowest interaction energy. This configuration dependency is due to the curvature effect of the interacting surfaces. The curved surfaces showed lower repulsive energy than flat surfaces at the same interacting surface area. The outcomes of this research would be applicable in predicting colloidal stability of cylindrical particles.
저자 최주영, 동현배, 이인호, 이상엽
소속 연세대
키워드 cylindrical particles; curvature effect
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