| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
콜로이드.계면화학_포스터 |
| 제목 |
Direct measurements of short-range capillary interactions between interface-trapped ellipsoid particles |
| 초록 |
The colloidal particles irreversibly adsorb to the fluid interface. The intensity of the repulsion and attraction is amplified compared to the case when the same particles are located in a single phase. Particularly, when the particles are chemically and/or geometrically anisotropic, the capillary attraction is more dominant. In our previous study, Lim et al. quantitatively measured the capillary interaction between ellipsoid particles at an interface using the trap-release method. When two particles approached each other over a long-range distance, the capillary force between them was found to decrease by r-4. However, in short-range separation they were rotated to have low energy configurations, and it was therefore difficult to quantitatively measure the capillary force. In this study, we devised a dial-type method using optical laser tweezers, and quantitatively studied the heterogeneity of capillary interactions between the ellipsoid particles at both range separations. |
| 저자 |
최규환1, 강동우1, 박병규2, 이성재2, 박범준1
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| 소속 |
1경희대, 2수원대 |
| 키워드 |
optical laser tweezer; capillary interaction
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| E-Mail |
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