Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Preparation of conductive EPDM rubber sheets by electroless Ni-plating for electromagnetic interference shielding applications

무전해 Ni 도금법을 이용한 전자파 차폐용 도전성 EPDM 고무의 제조

  • Lee, Byeong Woo (Department of Marine Equipments Engineering, Korea Maritime University) ;
  • Cho, Soo Jin (Department of Marine Equipments Engineering, Korea Maritime University) ;
  • Yang, Jun Seok (Department of Marine Equipments Engineering, Korea Maritime University)
  • 이병우 (한국해양대학교 조선기자재공학과) ;
  • 조수진 (한국해양대학교 조선기자재공학과) ;
  • 양준석 (한국해양대학교 조선기자재공학과)
  • Received : 2015.09.04
  • Accepted : 2015.09.25
  • Published : 2015.10.31
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Abstract

In the study, electroless Ni-plating on flexible ethylene-propylene-diene-monomer (EPDM) rubber sheets for the application of an insert block for shielding electromagnetic interference of multi cable transit (MCT) systems was investigated. Ni crystallinity and adhesion have been found to vary with processing parameters such as pH and temperature of the plating bath. It was shown that Ni-films having the high crystallinity and optimum electric conductivity were obtained on EPDM rubber sheets under pH 7 and 8 at $60{\sim}70^{\circ}C$. The conductive Ni-plated EPDM rubber prepared at pH 7 at $70^{\circ}C$ showed the enhanced adhesion and electric conductivity, and the high electromagnetic interference shielding effect in the 400 MHz~1 GHz range.

본 연구에서는 전자파 차폐형 MCT(multi cable transit)의 인서트블록에 사용되는 유연성 EPDM(ethylene propylene diene monomer)고무 상에 무전해 도금을 이용하여 니켈도금을 실시하였다. 도금욕의 공정변수 조절 즉 pH 및 온도에 따라 Ni 도금층의 결정성 및 부착력이 결정되었다. pH와 온도를 달리하여 합성 한 결과 pH 7 및 8, $60{\sim}70^{\circ}C$에서 얻은 도금막들에서 잘 발달된 결정상과 높은 전기 전도도를 가짐을 알 수 있었다. pH 7, $70^{\circ}C$에서 도금 시 가장 높은 부착력 및 전기전도도를 얻을 수 있었으며, 또한 400 MHz~1 GHz 범위에서 우수한 전자파 차단능을 얻을 수 있었다.

Keywords

References

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