| 학회 | 한국화학공학회 |
| 학술대회 | 2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 | 25권 1호, p.317 |
| 발표분야 | 분리기술(Separation Technology) |
| 제목 | Effect of Surface area of seed on polymorphic transformation time at anti-solvent crsytallization |
| 초록 | HNIW (2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-hexaazatetracyclo) is a material that has been widely known as a high density and explosive material. Hniw has five polymorphs, and four forms, α-, β-, ε- and γ-forms, are stable under sufficient conditions. Polymorphs are distinguished by intermolecular bonding angles, which affect physical properties such as density and explosion rate. In order to investigate how the surface area of the seeds affects the polymorphic transformation time, we prepared seeds of the epsilon type in different sizes and quantities with different surface areas of the seeds. Ethyl acetate and n-heptane were used as solvent and non-solvent. When the solution reached saturation concentration, the seeds were added and the polymorphic transformation time according to the surface area of the seed was analyzed by Raman spectroscopy. The polymorphic transformation time was studied when the surface area of the seed was 7 ~ 2206cm ^ 2. The polymorphic transformation time decreased as the seed surface area increased. |
| 저자 | 박인호1, 김광주1, 김준형2 |
| 소속 | 1한밭대, 2국방과학(연) |
| 키워드 | 결정화 |
| 원문파일 | 초록 보기 |
