A Study on the Physical Properties of Reinforcing Fillers with Dual Phase Structure

이중상 구조를 가진 보강성 충전제의 물리적 특성 연구

  • Lee, Seag (Kumho Research and Development Center) ;
  • Park, Nam Cook (Department of Chemical Engineering, Chonnam National University)
  • 이석 ((주)금호타이어 연구소) ;
  • 박남국 (전남대학교 공과대학 화학공학과)
  • Received : 1998.04.10
  • Accepted : 1998.06.26
  • Published : 1998.08.10

Abstract

The purpose of this experiment was the physical properties of rubber compounds with DPCB and pure carbon black. Si-O peak in the silcia surface was observed at the range of wavenumber from 1,100 to 1,200 in the DPCB by FT-IR analysis. Cure rate of rubber compounds containing DPCB and organic silane coupling agent were (Si69) delayed compared with those containing pure carbon black. 300% modulus and interaction coefficient of DPCB with silane coupling agent were higher than those of pure carbon black and PICO weight loss amount showed constant value. It was found that $0^{\circ}C$ tan$\delta$ of rubber compounds with DPCB was larger than those of pure carbon black at 2.0% silane coupling agent based on 50 phr DPCB and $60^{\circ}C$ tan$\delta$ of rubber compounds with DPCB decreased as increasing the usage coupling agent. Consequently, it is postulated that DPCB is strong candidate material for lowering rolling resistance under constant abrasion resistance.

Keywords

Dual Structure;Reinforcing Filler;Silica Carbon Black

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