Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Analysis of Mechanical Properties of Colored EPDM Based on Additive Mixing Ratio Using Mixture Design of Experimental Method

혼합물 실험계획법을 이용한 유색 EPDM의 첨가제 배합비에 따른 기계적 특성 분석

  • Park, Yoon-A (Department of Future Convergence Engineering, Kongju National University) ;
  • Jeon, Euy-Sik (Department of Future Convergence Engineering, Kongju National University) ;
  • Kim, Young-Shin (Industrial Technology Research Institute, Kongju National University) ;
  • Lee, Hyun-Seung (DAESUNG HI-TECH Co., Ltd)
  • 박윤아 (공주대학교 미래융합공학과) ;
  • 전의식 (공주대학교 미래융합공학과) ;
  • 김영신 (공주대학교 생산기술연구소) ;
  • 이현승 ((주)대성하이테크)
  • Received : 2022.06.02
  • Accepted : 2022.07.14
  • Published : 2022.08.31
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Abstract

With the recent increase in the demand for electric vehicles, it is necessary to identify the high current safety of automobile parts. Among the automobile parts, the EPDM parts required colored parts from the existing black; therefore, it was necessary to change the basic filler from carbon black to silica. The rubber used in automobile parts is flexible and exhibits basic characteristics of high strength and elongation. However, as the filler is changed to silica, its physical properties, such as tensile strength and elongation, are lower than those of the existing carbon black base. Therefore, it is necessary to evaluate the mechanical properties with the addition of the EPDM compound using silica as a base without degrading the physical properties of EPDM. In this study, an experiment based on the additive content was performed using the mixture experimental planning method to analyze the mechanical properties according to the additive type and mixing ratio of silica-based EPDM. The mixing ratio of the four additives was set using a simplex lattice design, and the tensile strength, elongation, modulus 300%, and permanent compression reduction rate were analyzed for mechanical characteristics, and rheometer experiments were performed for vulcanization characteristics. Through statistical analysis of the measured data, the main effects and interactions of the EPDM-blended rubber additives were analyzed. These results can be used to derive a mixing ratio of additives that satisfies the required characteristics of the EPDM compound.

Keywords

Acknowledgement

본 연구는 2021년 천안시의 천안실현기술개발사업(2021-0756-01)과 2019년 중소벤처기업부의 기업연계형 연구개발 인력양성사업 (S2755803)의 지원을 받아 수행된 연구임을 밝힙니다.

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