TMTD, MBTS, and CBS Accelerator Effects on a Silica Filled Natural Rubber Compound upon Vulcanization Properties

TMTD, MBTS, CBS 촉진제의 구조가 실리카로 충전된 천연고무 복합소재의 가황 및 물성에 미치는 영향

  • Kim, Sung Min (Dong Ah Tire & Rubber Co. Ltd) ;
  • Nam, Chae Seok (Dong Ah Tire & Rubber Co. Ltd) ;
  • Kim, Kwang Jae (Dong Ah Tire & Rubber Co. Ltd)
  • 김성민 (동아타이어공업(주)) ;
  • 남채석 (동아타이어공업(주)) ;
  • 김광제 (동아타이어공업(주))
  • Received : 2010.10.13
  • Accepted : 2011.01.19
  • Published : 2011.04.10

Abstract

Various types of accelerators, thiuram (TMTD), thiazole (MBTS), and sulfenamide (CBS) are added into a silica filled natural rubber (NR) compound. Their effects on vulcanization properties are also investigated. TMTD shows a fast vulcanization rate and a higer maximum torque ($T_{max}$), as well as excellent mechanical properties (hardness, 300% modulus, tensile strength, elongation). MBTS shows a moderate vulcanization rate, a lower $T_{max}$, and mechanical properties. Finally, CBS shows a slow vulcanization rate but excellent mechanical properties. The same vulcanization trend can be found in carbon black filled NR compounds.

Keywords

accelerators;silica;natural rubber;vulcanization characteristics;mechanical properties

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