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열가소성 폴리우레탄 (TPU)/고무 블렌드의 마찰에 의한 표면 파괴 거동

A Study on Friction-induced Surface Fracture Behaviors of Thermoplastic Polyurethane (TPU)/Rubber Blends

  • 투고 : 2013.08.02
  • 심사 : 2013.09.16
  • 발행 : 2013.09.30

초록

본 연구에서는 열가소성 폴리우레탄(TPU)과 EPDM, NBR 및 BR을 용융 블렌딩하여 TPU/Rubber 블렌드 필름을 제조하고 이들의 조성이 마찰시 표면 파괴와의 관계를 연구하였다. TPU/EPDM과 TPU/BR 블렌드의 마찰시 표면 파괴 특성이 개선되었으며 특히 BR이 우수하였다. 또한, TPU/BR 블렌드에서 BR의 함량이 10 wt% 이상 투입될 때 표면 파괴 및 마킹 특성이 개선되었다. Scanning electron microscopy (SEM) 분석으로부터 BR 함량이 증가할수록 연질상의 증가로 인한 표면 파괴 및 마킹 특성의 개선으로 추정할 수 있었다.

In this work, the thermoplastic polyurethane (TPU) was melt-blended with EPDM, NBR and BR to form TPU/Rubber blend films, their composition and friction-induced surface fracture relationship was investigated. TPU/EPDM and TPU/BR blends exhibited the improved friction-induced surface fracture, especially the effect of BR was excellent. With addition of more than 10 wt% BR, TPU/BR blends exhibited the improved friction-induced surface fracture. The increase of the soft segment with increasing BR content, which was confirmed by scanning electron microscopy (SEM) analysis enabled us to estimate the improved friction-induced surface fracture.

키워드

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피인용 문헌

  1. A Study on Friction-induced Surface Fracture Behaviors of Carboxylic Acid Modified Styrenic Thermoplastic Elastomer as Additives vol.16, pp.3, 2015, https://doi.org/10.17702/jai.2015.16.3.95
  2. Experimental Study on the Behavior of Polyurethane Springs for Compression Members vol.11, pp.21, 2021, https://doi.org/10.3390/app112110223