Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Fine Structure and Physical Properties of Poly(butylene terephthalate) Films Prepared by Biaxial Drawing Method

이축연신법에 의해 제조된 폴리부틸렌테레프탈레이트 필름의 미세구조와 물성

  • Lee, Sun-Hee (Department of Organic Material Science and Engineering, Pusan National University) ;
  • Nakayama, Kazuo (National Institute of Advanced Industrial Science and Technology) ;
  • Cho, Hyun-Hok (Department of Organic Material Science and Engineering, Pusan National University)
  • 이선희 (부산대학교 유기소재시스템공학과) ;
  • ;
  • 조현혹 (부산대학교 유기소재시스템공학과)
  • Published : 2007.12.31
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Abstract

The purpose of this study is to determine a structural explanation for the improved ability of PBT for biaxial orientation at the temperature range of $100{\sim}180^{\circ}C$. In order to investigate the crystal structure and orientation, PBT films with biaxial and uniaxial stretching are examined using WAXD, MOA, etc. Thermal properties are confirmed by DMTA, DSC and mechanical properties are investigated using sonic propagation method and tensile tester. In WAXD results, original PBT films exhibit only ${\alpha}$-form crystallites, while biaxially stretched films show (100) of the ${\alpha}$-crystal phase with increased stretching temperatures. In MOA patterns, original and biaxially stretched PBT films show an isotropic pattern in the film plane. The planarity of the film increases with simultaneous transverse stretching and stretching temperature.

Keywords

References

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