Polymer(Korea) (폴리머)

The Polymer Society of Korea (한국고분자학회)
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Effect of Transesterification on the Characteristics of PET/PEN Blend Flexible Substrate

상호에스테르 교환반응이 폴리(에틸렌 테레프탈레이트)/폴리(에틸렌 나프탈레이트) 블렌드 유연기관 특성에 미치는 영향

  • Kim, Jae-Hyun (Center for Photofunctional Energy Materials, Dept. of Polymer Science and Engineering, Dankook University) ;
  • Kim, Whan-Ki (Center for Photofunctional Energy Materials, Dept. of Polymer Science and Engineering, Dankook University) ;
  • Yum, Ju-Sun (Center for Photofunctional Energy Materials, Dept. of Polymer Science and Engineering, Dankook University) ;
  • Kang, Ho-Jong (Center for Photofunctional Energy Materials, Dept. of Polymer Science and Engineering, Dankook University)
  • 김재현 (광에너지 소재연구센터, 단국대학교 고분자시스템공학과) ;
  • 김환기 (광에너지 소재연구센터, 단국대학교 고분자시스템공학과) ;
  • 염주선 (광에너지 소재연구센터, 단국대학교 고분자시스템공학과) ;
  • 강호종 (광에너지 소재연구센터, 단국대학교 고분자시스템공학과)
  • Received : 2010.10.27
  • Accepted : 2011.01.29
  • Published : 2011.05.25
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Abstract

The effect of morphological development in PET/PEN blending on the physical properties of PET/PEN blend film as a flexible substrate was investigated. The two phase morphology was obtained in PET/PEN blends and it caused the improvement of dimensional stability of PET/PEN blend as a flexible substrate. The two phase morphology and crystallinity of PET/PEN blends could be controlled by the transesterification between PET and PEN during the film processing and this macroscopic structural development affected the dimensional stability of PET/PEN blend films. Better dimensional stability was obtained with increasing crystallinity and decreasing the level of transesterification.

PET/PEN 블렌딩에 의하여 발현되는 형태학적 변화가 PET/PEN 블렌드 유연기관 특성에 미치는 영향을 살펴보았다. PET와 PEN의 용융 블렌딩에 따른 two phase 형태학적 변화는 블렌드의 유연기관으로서의 치수안정성을 증가시킴을 알 수 있었다. PET/PEN 필름의 가공조건에 따른 상호에스테르 교환반응은 블렌드의 two phase 형태와 결정화도를 변화시키며 이러한 거시적 형태학적 변화는 유연기관으로서의 PET/PEN 필름의 치수안정성에 영향을 미침을 확인하였다. 결정화도가 높을수록 상호에스테르 교환반응이 낮을수록 PET/PEN 블렌드 필름의 치수안정성이 우수해짐을 알 수 있었다.

Keywords

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