Article
  • Effects of Temperature and Nano-filler Content on Water Uptake in Nanocomposites

  • Pyoung-Chan Lee† , Jin Uk Ha, Su Young Kim, Chanhyeok Um, Sang Hoon Kim, 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

  • 온도와 나노 첨가제 함량이 나노복합소재의 흡습거동에 미치는 영향

  • 이평찬† · 하진욱 · 김수영 · 엄찬혁 · 김상훈 · 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/montmorillonite (MMT) was investigated under various humidity conditions. The initial behavior of water absorption of the nanocomposites was linearly proportional to the square root of time. As a result, the diffusion coefficient decreased with increasing MMT contents and decreasing the condition temperature. It was confirmed that the water absorption temperature played more significant role than MMT content for the diffusion coefficient. Furthermore, as MMT content increased, storage modulus was increased. This reduced humidity-induced relaxation of nanocomposite at the high temperature.


본 연구에서는 흡습 분위기 온도에 따른 폴리아미드 6(PA6) 기반의 나노복합소재의 흡습 특성을 연구하였다. 나노복합소재의 수분 흡습의 초기 거동은 시간의 제곱근에 선형적으로 비례한다는 것을 확인하였다. 나노복합소재의 흡습 거동을 연구한 결과, MMT 함량이 증가할수록, 흡습 분위기 온도가 감소할수록 확산계수가 감소하는 경향을 보였다. 확산계수에 미치는 영향은 MMT 함량보다 흡습 분위기 온도가 더 크다는 것을 확인하였다. 또한 MMT 함량이 증가할수록 저장탄성률이 증가하였으며, 이는 고온 하에서 수분에 의한 복합소재의 이완현상을 감소시키는 역할을 하였다.


Keywords: water absorption, polyamide, nanocomposite, montmorillonite, diffusion coefficient

  • 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(4): 584-588

    Published online Jul 25, 2019

  • 10.7317/pk.2019.43.4.584
  • Received on Mar 7, 2019
  • Revised on Apr 2, 2019
  • Accepted on Apr 2, 2019

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