Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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Effects of Carbon Black on Mechanical Properties and Curing Behavior of Liquid Silicone Rubber (LSR)

Carbon Black 첨가에 따른 액상 실리콘 고무(LSR)의 기계적 특성 및 경화 거동 분석

  • Beom-Joo Lee (Department of Mechanical Engineering, Korea University of Technology and Education) ;
  • Seon-Ju Kim (Department of Mechanical Engineering, Korea University of Technology and Education) ;
  • Hyeong-Min Yoo (Department of Mechanical Engineering, Korea University of Technology and Education)
  • 이범주 (한국기술교육대학교 기계공학과) ;
  • 김선주 (한국기술교육대학교 기계공학과) ;
  • 유형민 (한국기술교육대학교 기계공학과)
  • Received : 2023.06.20
  • Accepted : 2023.06.30
  • Published : 2023.06.30
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Abstract

Liquid silicon rubber (LSR) has fine thermal compatibility and is widely used in various fields such as medical care and automobiles because it is easy to implement products with good fluidity. With the recent development of flexible sensors, the focus has been on manufacturing conductive elastomers, such as silicone as elastic materials, and carbon black, CNT, and graphene are mainly used as nanomaterials that impart conductive phases. In this study, mechanical behavior and curing behavior were measured and analyzed to manufacture a CB-LSR complex by adding Carbon Black to LSR and to identify properties. As a result of the compression test, the elastic modulus tended to increase as carbon black was added. When the swelling test and the compression set test were conducted, the swelling rate tended to decrease as the content of carbon black increased, and the compression set tended to increase. In addition, DSC measurements showed that the total amount of reaction heat increased slightly as the carbon black content increased. It is considered that carbon black was involved in the crosslinking of LSR to increase the crosslinking density and have a positive effect on oil resistance reinforcement.

Keywords

Acknowledgement

본 연구는 중소벤처기업부의 2022년도 중소기업기술혁신개발사업 (과제번호 : S3269454) 지원을 받아 수행 된 연구결과 입니다.

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