Article
  • Orientation Characteristics of Nylon 6/Polyketone Blends with Chain Extender
  • Tao Zhang and Ho-Jong Kang

  • Department of Polymer Science and Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do 16890, Korea

  • 사슬연장제를 함유한 나일론 6/폴리케톤 블렌드의 배향 특성 연구
  • 장타오 · 강호종

  • 단국대학교 고분자공학과

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

The effects of chain extender on the anisotropy and chain orientation behaviors of nylon 6/polyketone (PA 6/PK) blends were studied. FTIR absorption results show that the hydrogen bonding between C=O in PK and NH in PA 6 was developed in PA 6/PK blends. It was found that the hydrogen bonding was promoted by adding the chain extender causing the chain branch to PA 6 chain. The hydrogen bonding in the PA 6/PK blends prevented the crystallization and, at the same time, increased the anisotropic character in the PA 6 chain. As a result, the optical light leakage was observed with the crossed polarized plats and the interference pattern was found. Orientation behaviors of PA 6/PK blends were improved by blending with PK having relatively better orientation characteristic compare with PA 6 and the further improvement was made by hydrogen bonding which occurred between PA 6 and PK by using the chain extender.


나일론 6/폴리케톤(PA 6/PK) 블렌드에 사슬연장제 첨가가 블렌드 이방성과 사슬 배향특성에 미치는 영향을 살펴보았다. FTIR 흡수 피크 변화로써 PA 6/PK 블렌드에 PK의 C=O기와 PA 6의 NH기 상호 간 수소결합을 확인할 수 있었다. 사슬연장제 첨가에 의하여 발현된 PA 6 사슬 가지화는 PK와의 수소 결합을 촉진시킴을 알 수 있었다. PA 6와 PK의 수소결합은 PA 6/PK 블렌드 결정화를 방해함과 동시에 PA 6 사슬 이방성을 증가시킨다. 그 결과, 복굴절을 증가시켜 교차 편광판에서 광학적 빛 샘 현상으로 빛 간섭이 발생하였다. PA 6에 비하여 상대적으로 우수한 PK 사슬 배향성으로 PA 6/PK 블렌드 배향 특성이 향상되며 사슬 연장제에 의한 PK와의 수소 결합 증가로 배향 특성이 더 개선됨을 확인하였다.


Keywords: nylon 6, polyketone, anisotropy, chain extender, birefringence, orientation.

  • 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

  • 2022; 46(6): 744-751

    Published online Nov 25, 2022

  • 10.7317/pk.2022.46.6.744
  • Received on May 26, 2022
  • Revised on Jun 19, 2022
  • Accepted on Jun 21, 2022

Correspondence to

  • Ho-Jong Kang
  • Department of Polymer Science and Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do 16890, Korea

  • E-mail: hjkang@dankook.ac.kr