Effect of Water on Accelerated Weathering Tests.

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  • 促進試験における水の影響
  • ソクシン シケン ニ オケル ミズ ノ エイキョウ

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Abstract

The effect of the water for the weathering of five kinds of polymers and two kinds of painting film were studied by using metal-halide lamp system. After the exposure of the weathering conditions, color difference, gloss, appearance change and surface layer cutting force patterns were observed. The article concludes as follows. (1) There was the effect of water on the degradation of ABS, PVC and melamine-alkyd paint in the weathering conditions. (2) The degradation of PC, PBT, PP and acrylic urethane coating was not influenced by the addition of water during the exposure. (3) The water condensation on the surface of paint during the exposure affects the properties of the surface. This effect is significantly higher than that of water spray. It is important to compare the effect of water spray and water condensation to evaluate the effect of water in weathering test.

Journal

  • Materials life

    Materials life 11 (2), 78-84, 1999

    MATERIALS LIFE SOCIETY, JAPAN

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