| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-콜로이드·계면화학 |
| 제목 |
In-situ Interfacial Coacervation of Silica Nanoplatelets with Polyacrylic Acid for Production Highly Stable Macroemulsion Drops |
| 초록 |
This study reports a novel interfacial stabilization system which is engineered by in-situ coacervation of silica nanoplatelets (SiNPs) and polyacrylic acid (PAA) at oil-water interface. To give surface wettability to SiNPs, we grafted controlled amounts of 3-aminopropyltriethoxysilane and hexyltrimethoxysilane. Thanks to high adhesion energy of SiNPs, we could obtain monodisperse macroemulsion in the microfluidic channel. We showed that the structurally reinforced interface could be engineered through the electrostatic coacervation of amine-functionalized SiNPs and carboxylic acid groups of PAA. The macroemulsion with this coacervate membrane exhibited excellent long-term storage stability without any coalescence. |
| 저자 |
김하정, 박대환, 성민철, 김진웅
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| 소속 |
성균관대 |
| 키워드 |
nanoplatelets; complex coacervation; microfluidics;
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| E-Mail |
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