Polyurethane paint adhesion improvement on aluminium alloy treated by plasma jet and dielectric barrier discharge
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2016-01-17
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The effect of atmospheric pressure plasma treatment on the adhesion between a protective coating and AA1100 alloy was investigated. Two plasma sources were used for surface modifications: atmospheric pressure plasma jet and dielectric barrier discharge. The surface roughness and water contact angle measurements were conducted in order to evaluate the changes on the aluminium surface after plasma processing. The paint coating was tested using the adhesion tape test (ASTM D3359). A significant improvement of surface wettability and adhesion was obtained after plasma treatments.
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Journal of Adhesion Science and Technology, v. 30, n. 2, p. 218-229, 2016.