| 학회 |
한국공업화학회 |
| 학술대회 |
2010년 봄 (05/13 ~ 05/14, BEXCO(부산)) |
| 권호 |
14권 1호 |
| 발표분야 |
우수논문(구두) |
| 제목 |
Inexpensive hydrophilic and hydrophobic silica xerogels with superior properties |
| 초록 |
Highly porous hydrophilic and hydrophobic silica xerogels were synthesized by surface modification of silica hydrogels and ambient pressure drying. The silica hydrogels were prepared by a sol-gel polymerization of an inexpensive silica precursor (sodium silicate) under atmospheric conditions. In order to minimize shrinkage due to drying, the hydrogel surface was modified using trimethylchlorosilane in the presence of ethanol/n-hexane solution before ambient pressure drying (APD). Properties of the final product were investigated using FE-SEM, TEM, FTIR, TG-DTA, and nitrogen physisorption studies. Products obtained via the proposed inexpensive approach have superior properties making this method, which exploits an inexpensive silica source, feasible for large-scale economic industrial production. |
| 저자 |
프라딥사라와데, 힐롱가 아스콸, 김종길, 김희택
|
| 소속 |
한양대 |
| 키워드 |
hydrophobic; hydrophilic; xerogel; sol-gel
|
| E-Mail |
|
