| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 |
21권 2호, p.1987 |
| 발표분야 |
이동현상 |
| 제목 |
Effect of Self-Potentials of Colloidal Particles at a Fluid-Fluid Interface |
| 초록 |
We report the effect of single-colloid self-potentials on assembly behaviors at a curved oil-water interface. Such a characteristic arises due to heterogeneity in the intrinsic potentials that individual particles possess. Energy minimization is numerically performed to determine the intrinsic potentials of single colloids when the interface-trapped particles form uniquely arranged structures. We demonstrate that the obtained self-potentials correspond to the dipole strength of individual particles at the interface that can be attributed to the generation of abnormally strong and long-range repulsive interactions that should also be heterogeneous. The characterization of self-potentials on a single-particle level can potentially provide insight into the origin of heterogeneity of colloidal suspension systems at multiphasic fluid interfaces. Furthermore, the findings obtained here may facilitate an understanding of the hierarchical relationships associated with scale-dependent colloidal particle behaviors that arise due to interaction heterogeneity. |
| 저자 |
박범준, 이미나
|
| 소속 |
경희대 |
| 키워드 |
Heterogeneity; colloids; intrinsic potentials
|
| E-Mail |
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| 원문파일 |
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