Article
  • Electromagnetic Interference Shielding Effectiveness and Thermal Properties of Silicone Rubber Composites Filled with Ferric Oxides
  • Sosan Hwang, Hyeon Woo Jeong, Yongha Kim, Sung Hoon Jin, Yingjie Qian, and Sang Eun Shim

  • Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University, Incheon 22212, Korea

  • 산화철이첨가된실리콘고무복합체의전자파차폐성능과열적특성
  • 황소산 · 정현우 · 김용하 · 진성훈 · 천영걸 · 심상은

  • 인하대학교 화학 및 화학공학 융합 대학원, 스마트 에너지 소재 및 공정 교육연구단

  • 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

:In this study, the electromagnetic interference shielding effectiveness and thermal properties of silicone rubber composites filled with various ferric oxides produced as by-products during a steel manufacturing process were analyzed. Black ferric oxide (BFO) can absorb electromagnetic waves by magnetism, and yellow ferric oxyhydroxide (YFO) can absorb electromagnetic waves by water molecules between crystal structures. This was confirmed by electromagnetic interference shielding effectiveness (EMI SE) analysis through a vector network analyzer (VNA) and complex permittivity and complex permeability calculated by Nichlson-Ross-Wier (NRW) equation. The size of the iron oxide particles was confirmed through SEM and particle size analyzer, and thermal properties of the silicone rubber composite filled with ferric oxides were confirmed through TGA, XRD, and thermal conductivity analysis. Silicone rubber composite filled with BFO has the highest EMI SE and the composite filled with red ferric oxide (RFO) has the best thermal conductivity and thermal stability


본 연구에서는 제철과정에서 부산물로 발생하는 black ferric oxide(BFO), yellow ferric oxyhydroxide(YFO) 및 red ferric oxide(RFO) 산화철을 충전한 실리콘 고무 복합체의 전자파 차폐 성능 및 열적 특성을 분석하였다. BFO는 자성에 의해 전자파를 흡수할 수 있으며 YFO는 결정구조 사이의 물 분자에 의해 전자파를 흡수할 수 있다. 이는 vector network analyzer(VNA)를 통한 전자파 차폐 성능 분석과 Nichlson-Ross-Wier(NRW) 식으로 계산한 복소 유전율, 복소 투자율로 확인하였다. 전자주사현미경과 입도분석기를 통해 산화철 입자의 크기를 확인하였고 열중량분석기와 X선 회절 분석법, 열전도도 분석을 통해 산화철을 충전한 실리콘 고무 복합체의 열적 특성을 확인하였다. BFO를 충전한 실리콘 고무는 전자파 차폐 성능이 가장 높으며 RFO를 충전한 실리콘 고무는 열전도도와 열적 안정성이 가장 우수하였다.


Keywords: silicone rubber, ferric oxide, electromagnetic interference shielding, thermal conductivity

  • 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

  • 2021; 45(2): 200-209

    Published online Mar 25, 2021

  • 10.7317/pk.2021.45.2.200
  • Received on Sep 16, 2020
  • Revised on Oct 27, 2020
  • Accepted on Nov 2, 2020

Correspondence to

  • Sang Eun Shim
  • Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University, Incheon 22212, Korea

  • E-mail: seshim@inha.ac.kr