Article
  • Pyrene-based Polymer Surfactant for Dispersion of CNT in the PVDF/CNT Nanocomposite

  • Sang-Ha Kim, Seung-Yeop Baek, and Soo-Young Park†

  • Department of Polymer Science & Engineering, Polymeric Nanomaterials Laboratory, School of Applied Chemical Engineering, Kyungpook University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea

  • PVDF/CNT 복합체의 CNT 분산성 향상을 위한 Pyrene 기반 고분자 분산제

  • 김상하 · 백승엽 · 박수영†

  • 경북대학교 응용화학공학부 고분자공학전공

  • 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

Poly(PyMMP-co-MMA) (PyMMP: 1-pyrenemethyl methacrylate, MMA: methyl methacrylate) was synthesized for using it as a polymer surfactant of poly(vinylidene fluoride) (PVDF)/carbon nanotube (CNT) nanocomposite when the CNT content is high. The surface resistance of the PVDF/CNT composite film was decreased from 0.42 W to 0.18 W when the carbon content was 40%. The improved dispersion of CNT in the PVDF/CNT/poly(PyMMP-co-MMA) composite film was confirmed from the scanning electron microscopy images of the fractured surfaces. Thus, poly(PyMMP-co-MMA) can be used as a polymer surfactant in the cathode materials of lithium ion batteries.


고함량 탄소나노튜브(CNT)를 함유한 poly(vinylidene fluoride)(PVDF)/carbon nanotube(CNT) 나노복합체의 CNT 분산성 향상을 위해 poly(PyMMP-co-MMA)(PyMMP: 1-pyrenemethyl methacrylate, MMA: methyl methacrylate)를 중합하여 분산제로 사용하였다. Poly(PyMMP(20 mole%)-co-MMA) (CNT 대비 5 wt%)를 PVDF/CNT(CNT 함유량 40 wt%) 나노복합체에 첨가했을 때 표면저항이 0.42 W에서 0.18 W로 약 2.3배 감소하는 것을 확인할 수 있었고 주사전자 현미경 이미지로 CNT의 분산성을 확인해 본 결과 PVDF/CNT 나노복합체에 CNT가 잘 분산되었다. 따라서 poly(PyMMP-co-MMA)을 리튬 이차전지 양극재 분산제로 적용했을 때 우수한 성질을 기대할 수 있다.


Keywords: lithium ion battery, cathode, surfactant, carbon nanotubes, poly(vinylidenefluoride).

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2021; 45(5): 803-808

    Published online Sep 25, 2021

  • 10.7317/pk.2021.45.5.803
  • Received on Jun 1, 2021
  • Revised on Jul 22, 2021
  • Accepted on Jul 29, 2021

Correspondence to

  • Soo-Young Park

  • Department of Polymer Science & Engineering, Polymeric Nanomaterials Laboratory, School of Applied Chemical Engineering, Kyungpook University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea

  • E-mail: psy@knu.ac.kr