1019 ボイド含有ポリエステルフィルムの表面構造形成

概要

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This study is concerned with the analysis of relationship between surface structure and the micro voids that are formed by stretching the composite polymer sheet having incompatible polymer particles. The void formation near surface and surface structure considering the interfacial delamination between Poly (ethylene terephthalate)(PET) and dispersed incompatible polymers are simulated, and the numerical results by finite element method (FEM) were compared with experimental ones. It was experimentally confirmed that the height of protrusion formed stretching was increased with decrease in interfacial tension. The decrease in interfacial tension coincided with the increase in the critical stress of delamination. Increase in interfacial tension or decrease in the critical stress of delamination resulted in enlarging the aspect ratio of the void near surface. It is considered that a basin would be expressed on surface with void expression from the numerical results.
社団法人日本機械学会の論文