| 학회 | 한국화학공학회 |
| 학술대회 | 2009년 가을 (10/22 ~ 10/23, 일산 KINTEX) |
| 권호 | 15권 2호, p.2164 |
| 발표분야 | 재료 |
| 제목 | Effect of Heattreatment time and Temperature on Mesophase formation from Naphtha Cracking Bottom oil |
| 초록 | Naptha cracking bottom oil(NCB) was reformed at 410~450oC to obtain precursor mesophase pitch(F0) for carbon fiber, and 3-steps solvent extraction was processed to get oil ingredient (F1), asphaltene(F2), pre-asphaltene(F3), and THF-insolubles(F4). Precursor pitch, asphaltene, and pre-asphaltene were slowly heated at 400~480 oC , N2 atmosphere to form ing large molecules that aggregate into a liquid crystalline phase with a nematic order. This phase, called the mesophase. It forms small liquid spherules which grow in size, coalesce into larger spheres, and eventually become extended anisotropic regions. Mesophase content and C/H ratio increased as the heat treatment time increased at the temperature with component analysis. Mesophase formation observed by HOT-stage polarizing microscope, for precursor mesophase pitch(F0), mesophase was formed from 410oC, and solidified at around 480'c, and for pre-asphaltene(F3), mesophase was formed at around 440 oC, solidified at around 460 oC. |
| 저자 | 표대웅, 유승곤 |
| 소속 | 충남대 |
| 키워드 | NCB oil |
| 원문파일 | 초록 보기 |
