The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analyses on the Increment of Surface Hydrophobicity of Epoxy Composites by Thermal Treatment

열철리에 따른 Epoxy 복합재료의 표면 소수성증가에 관한 해석

  • 임경범 (인하대 공대 전기공학과) ;
  • 이백수 (인하대 공대 전기공학과) ;
  • 정무영 (인하대 공대 전기공학과) ;
  • 이덕출 (인하대 공대 전기공학과)
  • Published : 2001.04.01
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Abstract

In order to analyze the degradation process of epoxy/glass fiber for outdoor condition, FRP laminate was exposed to high temperature. Then, the degradation process was evaluated by comparing contact angle, surface potential, surface resistivity, and XPS. The experimental results showed that the amount of weight loss, contact angle, surface potential and surface resistivity increased up to 200 $^{\circ}C$ as a function of temperature. These phenomena show the existence of hydrophobic surface. With the change to the hydrophobic surface and the electrical potential and resistivity on FRP surface increased. In XPS to analyze surface chemical structures, the increased hydrophobicity in thermal increase of unsaturated double bond in carbon chains. Aslo, thermal treatment caused the discoloration on the point of treated surface. These phenomena were attributed to the generations of ether group.

Keywords

References

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