Abstract
In order to colore steel sheet coating of polyvinyl chloride containing Al flake powder (Al-PVC), colored acrylic film (Ac) was laminated on the Al-PVC and its effects on the properties of the Al-PVC were studied. Ac laminated was observed to reduce oxidation of Al-PVC and to restrain decreases in molecular weight. For uncolored acrylic films (nAc), deterioration of the underlying PVC layer was more rapid. Steel sheet coated with Ac/Al-PVC was far better than those coated with PVC, nAc/PVC and Ac in salt spray test, adhesion formability test after aging, heat resistance and composite cycle deterioration test. These results suggest that Ac lamination is a useul technique for coloring Al-PVC coated steel sheet.
