Article
  • Effect of Transesterification on the Characteristics of PET/PEN Blend Flexible Substrate
  • Kim J, Kim W, Yum J, Kang HJ
  • 상호에스테르 교환반응이 폴리(에틸렌 테레프탈레이트)/폴리(에틸렌 나프탈레이트) 블렌드 유연기판 특성에 미치는 영향
  • 김재현, 김환기, 염주선, 강호종
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 유연기판 특성에 미치는 영향을 살펴 보았다. PET와 PEN의 용융 블렌딩에 따른 two phase 형태학적 변화는 블렌드의 유연기판으로서의 치수안정성을 증가시킴을 알 수 있었다. PET/PEN 필름의 가공조건에 따른 상호에스테르 교환반응은 블렌드의 two phase 형태와 결정화도를 변화시키며 이러한 거시적 형태학적 변화는 유연기판으로서의 PET/PEN 필름의 치수안정성에 영향을 미침을 확인하였다. 결정화도가 높을수록 상호에스테르 교환반응이 낮을수록 PET/PEN 블렌드 필름의 치수안정성이 우수해짐을 알 수 있었다.

Keywords: poly(ethylene terephthalate)/poly(ethylene naphthalate) blend; transesterification; crystallinity; flexible substrate; coefficient of thermal expansion.

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2011; 35(3): 249-253

    Published online May 25, 2011

  • Received on Dec 27, 2010
  • Accepted on Jan 29, 2011