| 학회 |
한국공업화학회 |
| 학술대회 |
2009년 가을 (10/15 ~ 10/16, 서울산업대학교 내 서울테크노파크) |
| 권호 |
13권 2호 |
| 발표분야 |
나노(포스터) |
| 제목 |
Low density sodium silicate-based hydrophobic silica aerogel beads by a novel fast gelation process and ambient pressure drying |
| 초록 |
A method of synthesizing low density transparent mesoporous silica aerogel beads by ambient pressure drying was reported. The beads were prepared by acid-base sol-gel polymerization of sodium silicate via the ball dropping method in aqueous ammonia solution. In order to minimize the drying shrinkage, the silica wet beads were prepared first; then its surface was modified usingTMCS via simultaneous solvent exchange& surface modification. The silica aerogel beads with low packing bed density and high surface area was obtained when 10%V of TMCS was used. Properties of the final product were examined by FE-SEM,BET& TG-DTA. |
| 저자 |
프라딥사라와데, 김종길, 힐롱가아스콸, 김희택
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| 소속 |
한양대 |
| 키워드 |
Silica aerogel beads; Ambient pressure drying; Porosity
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| E-Mail |
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