| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.101 |
| 발표분야 | 기능성 고분자 |
| 제목 | Mechanical properties and higher order structures of bacterial polyester films prepared by roll drawing and uniaxial extension processes |
| 초록 | Poly(3-hydroxybutyrate) (PHB) is a thermoplastic bacterial polyester stored in microorganisms as intracellular carbon and energy storage material. However, it is well known that the processing of PHB and PHB copolymer into fibers, films, and other products is very hard, because of the brittle character of melt processed PHB which tends to be filled with large sperulites. Several groups have attempted to improve the mechanical properties of PHB solution cast films and reported that the solution cast films do not show good mechanical properties. In this study, roll drawing was applied to the compression molded PHB films. After the roll drawing process, the uniaxial drawing was achieved up to high draw ratio. The roll drawn PHB film showed a planar orientation and the uniaxial drawn films tend to have an uniaxial orientation as revealed by the wide angle X-ray diffraction. Tensile strength and modulus increased and elongation at break decreased with the uniaxial draw ratio. Fig.1 WAXD and SAXD patterns of PHBH drawn films Fig.2 Relationship between mechanical properties and draw ratio Keywords: Bacterial polyester; Poly(3-hydroxybutyrate); Roll drawing; Higher order structure; Mechanical properties |
| 저자 | 이재창1, Yukiko Furuhashi2, Hideki Yamane1 |
| 소속 | 1Kyoto Institute of Technology, 2Univ. of Tokyo |
| 키워드 | Bacterial polyester; Poly(3-hydroxybutyrate); Roll drawing; Higher order structure; Mechanical properties |
