Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
권호 표지

Surface Composition Change of UV/Ozone Modified Polypropylene

UV/오존에 의해 개질된 폴리프로필렌의 표면 조성 변화

  • Kim, J.I. (College of Environment and Applied Chemistry Kyung Hee University) ;
  • Ryu, S.H. (College of Environment and Applied Chemistry Kyung Hee University)
  • 김재익 (경희대학교 환경응용화학부) ;
  • 류승훈 (경희대학교 환경응용화학부)
  • Published : 2002.03.31

Abstract

Polypropylene is oxidized with UV/ozone as a function of UV treatment time and ozone flow rate and its surface characteristics are investigated using contart angle measurements and XPS. The aging behavior of oxidized surface is investigated under air, water and ethylene glycol as the aging media. Adhesion strength is also investigated using a lap shear test. Polar surface energy increases with increasing UV/ozone treatment time as well as ozone flow rate. No polar surface energy change is observed under water aging, while under air aging it decreases significantly within 2-3 days and reaches the close value as that of the untreated PP. Adhesion strength increases with increasing UV/ozone treatment time as well as ozone flow rate.

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