| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
20권 2호 |
| 발표분야 |
콜로이드계면화학_포스터 |
| 제목 |
Effect of Surface Modification of CaCO₃ Nanoparticles by Silane Coupling Agent on Stability of Foam and Emulsion |
| 초록 |
Surface modification of CaCO₃ nanoparticles treated by methyltrimethoxysilane (MTMS) has been studied and the effect of this on foam and emulsion stability has been investigated. The surface modification of CaCO3 nanoparticles by MTMS was confirmed by measurements of FT-IR, DSC, XRD, TGA and XPS analysis. Floating test and contact angle measurement have also been conducted to study the effect of hydrophobicity of particles. In modified CaCO₃ nanoparticle-surfactant mixture, foam stability has improved compared to a surfactant-only system. Investigation into the influence of the wettability, nanoparticle CaCO₃ particles on the type and stability of water−decane emulsions is described. With the increase of the MTMS concentration, CaCO₃ nanoparticles changed from hydrophilic to hydrophobic, and water-in-oil(W/O) emulsions were obtained. The adsorption of CaCO₃ nanoparticles at the surface of emulsion droplets was observed by High Resolution Fluorescence microscopy. |
| 저자 |
이주연1, 임종주1, 이수민1, 윤인호2, 정종헌2
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| 소속 |
1동국대, 2한국원자력(연) |
| 키워드 |
CaCO3 nanoparticle; Surface modification; Methyltrimethoxysilane(MTMS); Emulsion; foam stability; Fluorescence Microscopy
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| E-Mail |
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