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J. Korean Ceram. Soc. > Volume 30(10); 1993 > Article
Journal of the Korean Ceramic Society 1993;30(10): 838.
졸겔법에 의한 다공성 실리카 유리의 합성에 있어서 유기물의 영향
최성일, 신대용, 한상목, 이승범1
강원대학교 재료공학과
1동서산업(주) 신소재연구소
Effects of Organic Substances in the Preparation of Porous Silica Glass by the Sol-Gel Process
To control the pore size of silcia gel, formamide (FA), N,N-dimethyl formamide (DMF), polyethylene glycol (PEG) and polyacrylic acid (PAA) were added in the sol-gel process from starting solution with tetramethyl orthosilicate (TMOS). The gels were characterized using porosimeter, TG-DTA and SEM. As a result, the more contents of FA and PAA was increased the more gelation time was decreased, also the more contents of DMF and PEG was increased the more gelling time was increased. The mean pore size of gels was larger in the order of PAA, DMF, FA and PEG. And the mean pore size of porous silica glass was 59.0$AA$, 31.5$AA$, 29.9$AA$ and 29.0$AA$, respectively, heated at 75$0^{circ}C$/100$0^{circ}C$.
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