Mechanical Properties of Organoclay filled NR/BR Blends

Organoclay로 보강된 NR/BR Blends의 기계적 특성

  • Kim, W. (Department of Chemical Engineering, Pusan National University) ;
  • Kim, S.K. (Department of Chemical Engineering, Pusan National University) ;
  • Kim, S.K. (Department of Chemical Engineering, Pusan National University) ;
  • Chuug, K.H. (Department of Chemical Engineering, Pusan National University) ;
  • Byun, J.Y. (Department of Chemical Engineering, Pusan National University)
  • Published : 2004.03.31

Abstract

The cure, viscoelastic and mechanical characteristics of organoclay filled NR/BR blends were studied and compared with the properties of carbon black and silica filled NR/BR blends. The nanocomposites with extensive exfoliation state can be fabricated by a solution mixing method. In the composites, the amount of filler content was fixed to 10 phr. Degree of intercalation and exfoliation was characterized by X-ray diffraction (XRD). XRD results indicated exfoliation of the silicate layers into the rubber matrix. While the degree or intercalation and exfoliation is lowered by the conventional mixing method, extensive exfoliation can be obtained by the solution mixing method. It was found that the clay filled NR/BR compound showed better viscoelastic (tan ${\delta}$) and mechanical properties than the carbon black or silica filled NR/BR compounds.

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