二軸配向ポリエチレンテレフタレートフィルムのティン・フリー・スチールへの接着(缶用鋼板)(<特集>表面処理)

概要

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When biaxially oriented polyethylene terephthalate (PET-BO) film was laminated on tin free steel (TFS) at 260℃ (melting point of PET) or slightly higher temperatures, it began to fuse in its interfacial layer, transforming to a non-oriented and amorphous film. Amorphous PET layer contributed to the adhesion to TFT and the residual PET-BO layer influenced the formability and corrosion resistance. The more the residual PET-BO amount was, the better the PET film was in the water permeability resistance and the mechanical properties. On the other hand, as the residual PET-BO amount was less, the adhesion of PET film to TFS was better, being prominent when PET laminated TFS was deeply drawn into a cup. Thus, the adhesion and the corrosion resistance after forming changed adversely each other. However, their properties were good when the residual PET-BO amount in PET film was kept within the range of 30 to 70%. As a rapid quenching after the lamination of PET-BO film to TFS could prevent the recrystallization of the formed amorphous PET layer, the excellent adhesion of PET film to TFS was obtained.
社団法人日本鉄鋼協会の論文
1986-06-01