한국안전학회지 (Journal of the Korean Society of Safety)

  • 제28권3호
  • /
  • Pages.33-38
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  • 2013
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  • 1738-3803(pISSN)
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  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
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습윤 접지력 향상을 위한 안전화 겉창 개발 연구

The Development of Outsole for Wet Traction Enhancement

  • 김정수 (한국산업안전보건공단 산업안전보건연구원 안전연구실)
  • Kim, Jung Soo (Department of Safety Research, Occupational Safety and Health Research Institute, KOSHA)
  • 투고 : 2012.12.21
  • 심사 : 2013.04.08
  • 발행 : 2013.06.30
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초록

Many occupational workers or professionals have to walk on the various floors for a long period of time. The objective of this study was to develop the safety shoes with increased traction through the material selection. In order to fulfill our objective, first, two kinds of filler were selected to compare the wear mechanism at outsole surface. The developed rubber materials were tested with two kinds of portable slip meters. The sample safety shoes with developed rubber materials were also tested with subject in the laboratory. During walking, the safety shoes were naturally abraded with counter surface. The coefficient of friction(COF) was gradually decreased with number of steps to 30,000, while the COF was abruptly increased from 30,000 to 40,000. The experimental results showed that COF tested with silica rubber was at least 10% higher than that with carbon black rubber in wet or detergent condition. It has been well recognized that filler properties play a important role in wet traction in the tire industry. However it has been unclear that filler properties would be decisive factor in safety shoes. Our study shows that silica exhibits a higher slip resistance than carbon black without reference to wear states in wet or detergent condition. So, this results will provide guides for outsole compounders to develop new products and improve product performance.

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참고문헌

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