The Changes in the Surface Morphologies and the Barrier Properties Accompanied by the Strains Imposed on the Silicate Deposited Nylon 6 Films.

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Other Title
  • ケイ素酸化物蒸着ナイロンフィルムの伸長，曲げ変形に伴う表面モルフォロジーとバリアー性の変化　　高分子膜へのケイ素酸化物コーティングと膜のバリアー性　（第４報）
  • ケイソ サンカブツ ジョウチャク ナイロン フィルム ノ シンチョウ マゲ ヘンケイ ニ トモナウ ヒョウメン モルフォロジー ト バリアーセイ ノ ヘンカ コウブンシ マク エ ノ ケイソ サンカブツ コーティング ト マク ノ バリアーセイ ダイ4ホウ

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Abstract

The aim of this study was to correlate the surface morphology and gas barrier performance in terms of the elongational and bending strains imposed on the silicate (SiOX) deposited biaxially oriented 6 nylon films. The gas barrier property of the films to hydrogen was measured and the surface morphology of SiOX layer was investigated by using an atomic force microscopy. It was found for the elongational strain that at the strains less than 2.5%, SiOX layer was stretched with the substrate without being damaged and neither obvious cracks nor the deterioration of barrier property was observed. At the strains higher than 3%, SiOX layer no longer follows the deformation of nylon film and the linear cracks perpendicular to the stretching direction were produced on the SiOX layer. Consequently H2 permeabilities of films increased drastically. Bending of SiOX deposited nylon 6 films by winding them around the steel rods with various diameters produced similar cracks to those observed on the stretched film parallel to the winding direction and the barrier property of the film was deteriorated when the diameter of the rod is smaller than 2mm.

Journal

  • Sen'i Gakkaishi

    Sen'i Gakkaishi 58 (1), 34-39, 2002

    The Society of Fiber Science and Technology, Japan

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