Elastomers and Composites

  • 제50권1호
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  • Pages.24-29
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  • 2015
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  • 2092-9676(pISSN)
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  • 2288-7725(eISSN)
한국고무학회 (The Rubber Society of Korea)
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Effects of a Crosslinking Agent and a Compatibilizer on the Mechanical and Rheological Properties of Waste PP and Waste Ground Rubber Tire Composites

  • Kim, Donghak (School of Energy and Integrated Materials Engineering, Kumoh National Institute of Technology) ;
  • Kim, Seonggil (School of Energy and Integrated Materials Engineering, Kumoh National Institute of Technology) ;
  • Lee, Minji (School of Energy and Integrated Materials Engineering, Kumoh National Institute of Technology) ;
  • Lee, Chanhee (Gumi High School) ;
  • Lee, Horyong (Gumi High School) ;
  • Lee, Seongwoo (Gumi High School) ;
  • Lee, Suhyeon (Gumi High School) ;
  • Moon, Myeongsuk (Gumi High School) ;
  • Bang, Daesuk (School of Energy and Integrated Materials Engineering, Kumoh National Institute of Technology)
  • 투고 : 2015.01.15
  • 심사 : 2015.01.30
  • 발행 : 2015.03.31
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초록

In this study, we investigated the effects of a crosslinking agent and a compatibilizer on the mechanical and rheological properties of waste PP and waste ground rubber tire (WGRT) composites. In order to simulate a commercial TPV, the component of waste PP and WGRT was fixed at 30 and 70 wt%, respectively. With the simple addition of SEBS-g-MA into the waste PP/WGRT composites, the tensile strength of the composite was decreased, whereas both the elongation at break and impact strength were significantly increased because of rubbery characteristics of SEBS-g-MA. In order to further improve the properties of the composites, the waste PP/WGRT/SEBS-g-MA composites was revulcanized with dicumyl peroxide (DCP). As expected, mechanical properties of the revulcanized composites was generally improved. Especially, with 15 and 1 phr of SEBS-g-MA and DCP, elongation at break was highest value of about 183% because of the recross-linking of WGRT without chain scission of the main chain. It was found that complex viscosity of the revulcanized composite increased which might verify further vulcanization of the WGRT.

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참고문헌

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