| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 |
21권 2호, p.1513 |
| 발표분야 |
공정시스템 |
| 제목 |
Uniformity of thermoplastic unidirectional carbon fiber (UD-CF) prepreg |
| 초록 |
A computational fluid dynamics (CFD) model with real geometry of a pultrusion process was proposed for unidirectional carbon fiber (UD-CF) prepreg production. The polyamine 6 (PA6) and polyacrylonitrile-based CF were used as the thermoplastic polymer matrix and reinforcement, respectively. The non-Newtonian viscosity of PA6 was expressed as the Carreau's model. The tow domain was treated as a porous media with anisotropic viscous resistances in moving frame reference coordinate. The thermoplastic resin injected from the bottom was impregnated into the CF tow. The resin velocity profile obtained from the CFD showed a similar tendency to the relative resin amount experimentally measured for ten segments of UD-CF pregreg. The uniformity index of the resin velocity (UIv) on the outlet surface was calculated for several tow speeds and resin flow rates. The tow speed showing a maximum UIv had a linear relation with the slip velocity. |
| 저자 |
정재호1, 한문희1, 임영일2, Ngo Ich Son2
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| 소속 |
1효성기술원, 2한경대 |
| 키워드 |
Unidirectional carbon fiber prepreg (UD-CF pregreg); Polyamide 6 (PA6); Pultrusion; Computational fluid dynamics (CFD); Porous media modeling
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| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
