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Preparation of Graphene/Polybenzoxazine Conductive Composite Thin Film through Thermal Treatment

열 처리를 통한 그래핀/폴리벤족사진 전도성 복합 박막 제조

  • Ko, Young Soo (Department of Chemical Engineering, Kongju National University) ;
  • Cha, Ji-Jung (Division of Advanced Materials Engineering, Kongju National University) ;
  • Yim, Jin-Heong (Division of Advanced Materials Engineering, Kongju National University)
  • 고영수 (공주대학교 천안공과대학 화학공학부) ;
  • 차지정 (공주대학교 천안공과대학 신소재공학부) ;
  • 임진형 (공주대학교 천안공과대학 신소재공학부)
  • Received : 2013.02.21
  • Accepted : 2013.03.19
  • Published : 2013.07.25

Abstract

A novel conductive composite thin film was prepared for the first time by hybridization between polybenzoxazine (PBZ) having high heat resistance property and conductive graphene. Mechanically robust conductive graphene/PBZ composite thin films could effectively be prepared by a simple thermal treatment, which simultaneously induces reduction of graphene oxide (GO) and crosslinking reaction of benzoxazine monomer. Graphene sheets seem to be uniformly dispersed up to 3 wt% graphene content in the composite thin film as shown in the results of chemical/crystal structural and morphological analyses. This efficient route for making graphene/PBZ composite thin film would provide simultaneous improvement of mechanical property as well as electrical conductivity.

고내열성 고분자인 폴리벤족사진(PBZ)과 전도성 그래핀을 혼성화시켜 새로운 전도성 복합박막을 제조하는 연구를 처음으로 수행하였다. 단순한 열처리 공정에 의해 동시에 그래핀 옥사이드와 벤족사진 단량체를 환원 및 경화를 시켜 기계적/전기적 특성이 크게 향상된 그래핀/PBZ 복합 박막을 제조하였다. 그래핀/PBZ 복합 박막의 화학/결정 구조 및 형태학적 미세구조 분석으로부터 약 3 wt%의 그래핀이 복합 박막에 들어가더라도 그래핀이 비교적 균일하게 분산된다는 것을 알 수 있었다. 본 연구를 통하여 PBZ박막의 기계적 물성 향상과 동시에 도전성을 부여하는 효과적인 경로를 제공할 수 있었다.

Keywords

Acknowledgement

Supported by : 한국연구재단

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