Article
  • Study on Water Uptake in Polyamide-based Metallic Nanocomposites

  • Pyoung-Chan Lee† , Bo-Ram Kim, Chanhyeok Um, Sang Hoon Kim, Hyun Uk Lee, Jin Uk Ha, Sun Kyoung Jeoung, Donghyeok Shin*,**, and Wooseok Jung*

  • Lightweight Material R&D Center, Korea Automotive Technology Institute, Cheonan-si, Chungnam 31214, Korea
    *R&D Center, Woo-Sung Chemical Co., Ltd., Cheonan-si, Chungnam 31214, Korea
    **Department of Energy, Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan-si, Chungnam 31253, Korea

  • 폴리아미드 기반 메탈감 나노 복합소재의 흡습 거동에 관한 연구

  • 이평찬† · 김보람 · 엄찬혁 · 김상훈 · 이현욱 · 하진욱 · 정선경 · 신동혁*,** · 정우석*

  • 자동차부품연구원 경량화소재연구센터, *(주)우성케미칼 R&D센터, **한국기술교육대 응용화학공학과

Abstract

In this study, water absorption behavior of metal feeling composite based on polyamide 6 and polyamide 6/ MMT was investigated. It was confirmed that water absorption mechanism of those composites followed the Fick’s second law. The composites with MMT showed reduced water absorption as well as the water diffusion coefficient. The composite containing higher moisture contents showed 50 ℃ lower Tg than dried one. Furthermore, dimension stability was increased with increasing MMT content. This is attributed to the enhanced barrier property due to the MMT intercalation on the matrix.


본 연구에서는 폴리아미드 6(PA6) 기반의 메탈감 복합소재 및 몬모릴로나이트(montmorillonite, MMT) 적용 메탈감 나노 복합소재의 흡습 특성을 연구하였다. 복합소재의 수분 흡습의 초기 거동은 Fick’s second law를 따른다는 것을 확인하였다. 나노 복합소재의 흡습 특성을 연구한 결과, MMT 도입으로 수분 흡습률이 감소되었으며 확산계수 역시 감소하는 경향을 보였다. 수분을 흡습한 복합소재의 유리전이온도는 건조된 복합소재 대비 50 ℃ 이상 감소하였다. 또한 MMT 함량이 증가할수록 수분 흡습에 따른 치수변화가 감소되었으며, 이는 MMT 도입에 따른 수분 흡습 방지 효과로 설명할 수 있었다.


Keywords: water absorption, polyamide, nanocomposite, diffusion coefficient, Fick’s second law

  • 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

  • 2019; 43(1): 139-143

    Published online Jan 25, 2019

  • 10.7317/pk.2019.43.1.139
  • Received on Sep 17, 2018
  • Revised on Oct 23, 2018
  • Accepted on Nov 8, 2018

Correspondence to

  • Pyoung-Chan Lee

  • Lightweight Material R&D Center, Korea Automotive Technology Institute, Cheonan-si, Chungnam 31214, Korea

  • E-mail: pclee@katech.re.kr