| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-콜로이드·계면화학 |
| 제목 |
A Study on Silica Nanoparticles Grafted with Anionic Polyelectrolytes as Pickering Emulsifiers of Oil and High Salinity Aqueous Solutions |
| 초록 |
Nanoparticles (NPs) may have great potential for various subsurface applications over the past decades. One of the important challenges for these applications is to achieve colloidal stability in subsurface media at high salinity and high temperature. It has been previously shown that NPs “multipoint”-grafted with anionic poly(AMPS-co-AA) exhibited remarkable colloidal stabilities in certain salinity such as API brine. However, many other important properties of such particles still remain unstudied. Herein, we investigate various properties of the silica (SiO2) NPs “multipoint”-grafted with poly(AMPS-co-AA) in NaCl and CaCl2 solutions. The brush behavior of the grafted random copolymers was investigated through wide range of salinities. The particles displayed brine-oil interfacial activity with increasing salt concentrations (Cs), stabilizing oil-in-brine emulsions. High internal phase emulsion (HIPE) could be formed in high Cs of CaCl2, which exhibited gel-like behavior. |
| 저자 |
박현수1, 임세형1, 양지원1, 곽채수1, 김지은1, 최신식1, 김채빈2, 이주형1
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| 소속 |
1명지대, 2부산대 |
| 키워드 |
Polymer grafting; Pickering emulsion; Polyelectrolytes; Subsurface application; High salinity; Colloidal Stability
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| E-Mail |
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