Effect of Degree of Interfacial Interlinking on Adhesive Strength and Fracture Morphology of Rubber Layers

고무층간 가교정도가 접착강도 및 파괴형태에 미치는 영향

  • Kim, Hyeon-Jae (Faculty of Applied Chemistry, Chonnam National University) ;
  • Kaang, Shin-Young (Faculty of Applied Chemistry, Chonnam National University) ;
  • Nah, Chang-Woon (Department of Chemical Technology, Provincial College of Damyang)
  • 김현재 (전남대학교 응용화학부) ;
  • 강신영 (전남대학교 응용화학부) ;
  • 나창운 (전남도립담양대학 화학공업과)
  • Published : 1999.03.31

Abstract

Interfacial adhesive strength between the fully-crosslinked and partially-crosslinked rubber layers were Investigated at the temperature range of $30{\sim}120^{\circ}C$ for four different rubbers(NR, SBR, EPDM, BIMS). The surfaces of interfacial failure were also investigated using a scanning electron microscopy(SEM). The physical interlinking played a major role in the adhesive strength between the fully-crosslinked rubber layers. When a partially-crosslinked rubber layer was bonded to the fully-crosslinked one, the chemical as well as the physical interlinking affected the adhesive strength. NR showed a "interfacial knotty tearing" pattern, while EPDM showed a typical "cross-hatched" one when the adhesive strength approached to the cohesive tear strength of each material.