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A Study on the Peel Strength of Silane-treated Silicas-filled Epoxy Adhesives

실란처리 되어진 실리카가 첨가된 에폭시 접착제의 접착박리강도에 관한 연구

  • Choi, Bo-Kyung (R&D Division, Korea Institute of Carbon Convergence Technology) ;
  • Kim, Hong-Gun (Department of Carbon Fusion Engineering, Jeonju University) ;
  • Seo, Min-Kang (R&D Division, Korea Institute of Carbon Convergence Technology) ;
  • Park, Soo-Jin (Department of Chemistry, Inha University)
  • Received : 2014.07.16
  • Accepted : 2014.08.26
  • Published : 2014.10.10

Abstract

In this paper, the effect of silane-treated silicas and epoxidized soybean oil (ESBO) addition on adhesion properties of silicas-filled epoxy adhesives was examined. The silicas were treated by ${\gamma}$-methacryloxy propyltrimethoxy silane (MPS), ${\gamma}$-glycidoxy propyl trimethoxy silane (GPS), and ${\gamma}$-mercapto propyl trimethoxy silane (MCPS). Surface and structural properties of the adhesives were determined by using scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FT-IR). The t-peel strength of the adhesives was estimated using the universal testing machine (UTM). And, the equilibrium spreading pressure, surface free energy, and specific surface area were investigated by BET methods with $N_2$/77 K adsorption. As a result, the peel strength of the adhesives was increased in the presence of silane-treated silicas in the adhesives compared to that of untreated silicas. This result indicated that the silane coupling agent played an important role in improving the dispersion of silicas in epoxy adhesives. And, the adhesives treated by MCPS were superior to the others in adhesion.

Acknowledgement

Grant : 바이오매스를 이용한 전지전자용 친환경 수지 제조 및 접착제 개발

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