Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Effect of Carbon Filler and Ester Type Binder on the Reactivity and Adhesive Properties with PET Film of Conductive Paste

탄소필러와 에스테르계 바인더가 전도성 페이스트의 반응성 및 PET 필름과의 접착특성에 미치는 영향

  • 심창업 (주식회사엔씨티) ;
  • 구효선 (주식회사엔씨티) ;
  • 김연철 (공주대학교 신소재공학부 고분자공학전공)
  • Received : 2022.05.26
  • Accepted : 2022.07.03
  • Published : 2022.08.10
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Abstract

It is very important to secure the adhesion durability between the base film and the conductive paste for the development of a sensor for detecting hazardous chemicals. In this study, an ester binder was used to improve the adhesive properties which can be a problem when applying the sensor to the cross cut 0B or 1B grade. This problem was found while evaluating the adhesive properties by coating the polyaniline/graphene nano plate (GNP) paste on the polyethylene terephthalate (PET) film. When 10 wt% or more of the ester-based binder was added, the cross cut grade to which the sensor can be applied was 3B or higher. It was confirmed that the excessive addition of the binder may affect the electrical properties of the conductive paste and actually decrease the reactivity to sulfuric acid. To improve the electrical property, a carbon black (CB) content was varied resulting in the optimum electrical property observed at 2 wt% of CB.

유해화학물질의 감지 센서 개발을 위해 기재 필름과 전도성 페이스트의 접착 내구성 확보가 매우 중요하다. 본 연구에서는 폴리에틸렌테레프탈레이트(polyethylene terephthalate, PET) 필름에 폴리아닐린/그래핀나노플레이트(graphene nano plate, GNP) 페이스트를 코팅하여 접착 특성을 평가한 결과 cross cut 0B 또는 1B 등급으로 센서 적용에 문제가 있어 에스테르계 바인더를 이용하여 접착 특성 개선 연구를 수행하였다. 에스테르계 바인더가 10 wt% 이상 첨가되면 센서 적용이 가능한 cross cut 등급이 3B 이상을 나타내었다. 바인더의 과량 첨가는 전도성 페이스트의 전기적 특성에 영향을 줄 수 있으며 실제로 황산에 대한 반응성이 감소함을 확인하였다. 전기적 특성 개선을 위해 카본블랙(carbon black, CB) 함량 변화 시험을 수행하였고 CB 2 wt%에서 최적의 전기적 특성을 보임을 확인하였다.

Keywords

Acknowledgement

이 논문은 천안실현기술개발 사업과 환경부의 폐자원에너지화 전문인력 양성사업으로 지원되었습니다.

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