Analysis of the Surface Degradation in UV-irradiated High-Temperature Vulcanized Silicone Rubber

자외선 조사된 HTV 실리콘 고무의 표면열화 분석

  • 연복희 (인하대학교 전기공학과) ;
  • 이태호 (인하대학교 전기공학과) ;
  • 허창수 (인하대학교 전기공학과) ;
  • 이종한 (디엔에스(더닝실리콘) 주식회사)
  • Published : 2000.04.01

Abstract

In this paper we have investigated the surface degradation by ultraviolet-irradiation in high-temperature vulcanized silicone rubber. Through the measurement of surface potential decay by corona-charging and of contact angle it is found that the change of surface electrostatic properties and the decrease of contact angle under UV-radiation. For the changes in micro-morphological and chemical structure of the UV-treated silicone rubber we utilized several analytical techniques such as SEM, ATR-FTIR,XPS. From this study it is shown that the chemical reactions(scissoring of side chain(S-$CH_3$) cross-linking and branching) occur on the surface of silicone rubber during the UV-irradiation. Also we obtained the results of the loss of low molecular weight chain by cross-linking and oxidation reaction.

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