Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Studies on Recycling of Waste Polyurethane

폐우레탄고무 재활용에 관한 연구

  • Kim, Jin-Kook (Dept. of Polymer Sci. & Eng. Gyeongsang National University, Research Institute of Industrial Technology) ;
  • Park, Kwang-Ok (Dept. of Polymer Sci. & Eng. Gyeongsang National University, Research Institute of Industrial Technology) ;
  • Ha, Chang-Sik (Dept. of Polymer Engineering, Pusan National University)
  • 김진국 (경상대학교 고분자공학과 생산기술연구소) ;
  • 박광옥 (부산대학교 고분자공학과) ;
  • 하창식 (부산대학교 고분자공학과)
  • Published : 1998.03.31
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Abstract

The production of polyurethane polymer has been increased because of their unique properties and variety process methods available. The generation of their wastes also increases with products. These byproducts of industrialization seriously threaten the environmental demanding. Therefore, development of the recycling technologies have been required. The main propose of this study is to develop the recycling technology of waste polyurethane from a footwear scrap. This technique is composed of the following procedure : crushing, devulcanizing, pelletizing, washing and drying. The pellet was characterized with various methods. The recycled polyurethane(RPU) was blended with HIPS(high impact polystyrene) and investigated morphologically and rheologically. The experimental results showed that the addition of 20% HIPS to RPU was limited without mechanical performance of the superial properties of a virgin polyurethane. We believe that these technical information make possible to develop a rational engineering product.

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