| 학회 | 한국화학공학회 |
| 학술대회 | 2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 | 19권 2호, p.1224 |
| 발표분야 | 공업화학 |
| 제목 | Effects of mixing and bi-orientation processes on physical and thermal properties of microvoided PLA film by blending LDPE |
| 초록 | In the study, a microvoided PLA film was prepared by mixing of poly(lactic acid) (PLA) and low-density polyethyene (LDPE) and bi-orientation processes. Since the microvoided PLA film is lower density and higher insulation property, it is able to apply for construction materials. A formation of microvoided PLA film is explained by the fact that PLA is immiscible with LDPE. Therefore, it is important to study on mixing and bi-orientation technology for a higher micro-voided film. A mixed resin blending 5~20 wt% LDPE was extruded at 220℃ and casted at lower temperature than 20℃ to be 20~30 um thickness. Finnally, the microvoided film was obtained by stretching both 200% mechanical direction (MD) and 200% transverse direction (TD). Density of microvoided PLA film is 0.8~1.1 g/cm3 due to the formation of many microvoids in film inside by LDPE dispersion, orientation, and annealing processes. |
| 저자 | 이상은, 홍성철, 김병우, 김문선 |
| 소속 | 성균관대 |
| 키워드 | PLA; LDPE; Bi-orientation; Microvoid; Low-density |
| 원문파일 | 초록 보기 |
