• Title/Summary/Keyword: LMW silicone fluids

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The Behavior of Low Molecular Weight Silicone Fluids in Silicone Rubber (자외선 조사에 따른 실리콘 교무에 존재하는 가동성 저분자량 성분의 거동)

  • Hong, Joo-Il;Lee, Ki-Taek;Seo, Yu-Jin;Hwang, Sun-Mook;Huh, Chang-Su
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2004.11a
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    • pp.312-315
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    • 2004
  • In this paper we investigated the behavior of low molecular weight silicone fluids in silicone rubber by W treatment with solvent-extraction and GPC. It was shown that LMW quantity which was extracted by solvent-extraction was decreased in UV treatment time. $200{\sim}450\;g/mol$ distribution of LMW silicone fluid was contributed to recovery. It was similar to result from corona discharge. Morphological analysis was investigated by scanning electron microscope(SEM) and X-ray diffraction (XRD). The behavior of LMW silicone fluids in silicone rubber which was contributed to recovery was discussed.

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Effects of Ageing Factors on Low Molecular Weight Silicone Fluids Content Fluids Content and Surface Hydrophobicity in HTV Silicone Rubber (HTV 실리콘 고무에서 열화인자에 따른 저분자량 성분과 표면 발수성의 변화)

  • 허창수;연복희;조한구
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.12 no.1
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    • pp.1-10
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    • 1999
  • In this paper, we have investigated the effects of the environmental factors on Low Molecular Weight (LMW) silicone fluid contents existing in high temperature vulcanized (HTV) silicone rubber sample, using dipping method and contact angle, current measurement. Artificial treatments such as immersion in water, elevated temperature, UV irradiation and dry band arcing under salt-fog condition are selected as the environmental factors. This results will be helpful to investigate the degradation with time and to expect a life time, because the LMW silicone content, which is important to recovery the hydrophobicity of silicone rubber surface, show different results by each environmental factors.

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