Article
  • Preparation of Polyolefin/2D-nanosheet Nanocomposites via Reactor Mixing; Polyethylene Composites Using Masterbatch
  • Jun Hyung Park, Dong Eun Lee*,† , and Keun-Byoung Yoon

  • Department of Polymer Science & Engineering, Kyungpook National University, Daegu 41566, Korea
    *School of Architecture & Civil and Architectural Engineering, Kyungpook National University, Daegu 41566, Korea

  • 반응기 혼합법에 의한 폴리올레핀/2D-나노시트 나노복합체 제조; 마스터배치를 이용한 폴리에틸렌 나노복합체
  • 박준형 · 이동은*,† · 윤근병

  • 경북대학교 고분자공학과, *경북대학과 건축공학부

Abstract

Polyethylene/modified 2D-nanosheets composites were fabricated via the masterbatch technique which was synthesized by reactor mixing under mild conditions using (n-BuCp)2ZrCl2/methylaluminoxane (MAO) catalyst. The 2D-nanosheets were modified with octadecylamine (ODA) for enhancement of dispersion and interaction with the polymer matrix. Microstructure, thermal and mechanical properties of composites were examined. The modified 2D-nanosheets were homogeneously dispersed across the composites and showed good interfacial adhesion between the modified 2D-nanosheets and polyethylene matrix. The thermal stabilities and mechanical properties of composites were significantly enhanced (e.g., up to 15% increase in tensile strength and 100% increase in Young’s modulus for composites containing 5 wt% 2D-nanosheets). Thus, the masterbatch technique was able to produce high-performance polyolefins.


옥타데실아민(octadecylamine, ODA)으로 개질한 MoS2와 환원 그래핀옥사이드(rGO)가 분산된 폴리에틸렌 복합체를 마스터배치로 제조하였다. 마스트배치는 (n-BuCp)2ZrCl2/methylaluminoxane(MAO) 촉매계를 사용하여 에틸렌 중합 후 반응기 내에 개질한 2D-나노시트를 첨가하여 혼합하는 방법으로 제조하였다. 복합체의 열적, 기계적 성질 및 미세구조를 조사하였다. 폴리에틸렌 매트릭스에 2D-나노시트는 균일하게 분산되었으며, ODA 개질로 매트릭스와 2D-나노시트 계면의 접착력이 증가한 것으로 판단된다. 2D-나노시트 첨가에 따라 열적성질은 크게 변하지 않았지만, 열안정성 및 기계적 물성은 크게 증가하였다(5 wt% 첨가하였을 때 인장강도와 모듈러스는 각각 15% 및 100% 증가). 따라서 마스터배치를 사용한 나노복합체 제조는 고성능 폴리올레핀 제조에 유용할 것으로 판단된다


Keywords: reactor mixing, 2D-nanosheets, MoS2, rGO, masterbatch

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2018 Impact Factor : 0.500
  • Indexed in SCIE

This Article

  • 2020; 44(6): 848-853

    Published online Nov 25, 2020

  • 10.7317/pk.2020.44.6.848
  • Received on Jun 26, 2020
  • Revised on Jul 28, 2020
  • Accepted on Jul 28, 2020

Correspondence to

  • Dong Eun Lee* and Keun-Byoung Yoon
  • Department of Polymer Science & Engineering, Kyungpook National University, Daegu 41566, Korea
    *School of Architecture & Civil and Architectural Engineering, Kyungpook National University, Daegu 41566, Korea

  • E-mail: dolee@knu.ac.kr, kbyoon@knu.ac.kr