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Comparative Analysis of Wettability Behavior and Glossiness of CAA and FPL Coatings on Aluminum Sheets
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Abstract
The use of anodized coatings as a substrate for adhesive bonding of aluminum is quite common and widely accepted. However, over time and with exposure to heat, the behavior of the coating changes and its wettability reduces. We investigate the wettability of the coating by measuring the contact angle of the coatings. Aluminum sheets are coated with two types of anodizing and FPL coatings for this purpose. The results show that the wettability of all coatings is stable for 16 hours after the coating is applied. However, the wettability decreases dramatically over long time periods. The anodized coating shows more dramatic changes after 30 days than the FPL coating. Also, in both types of coatings, with increasing heating temperature, the wettability decreases and the contact angle increases. The changes in the anodized coatings are more significant than in FPL coatings. Measuring the glossiness of the coating before and after heating indicates that the gloss and the surface roughness of the coating do not change.
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Title: Comparative Analysis of Wettability Behavior and Glossiness of CAA and FPL Coatings on Aluminum Sheets
Description:
Abstract
The use of anodized coatings as a substrate for adhesive bonding of aluminum is quite common and widely accepted.
However, over time and with exposure to heat, the behavior of the coating changes and its wettability reduces.
We investigate the wettability of the coating by measuring the contact angle of the coatings.
Aluminum sheets are coated with two types of anodizing and FPL coatings for this purpose.
The results show that the wettability of all coatings is stable for 16 hours after the coating is applied.
However, the wettability decreases dramatically over long time periods.
The anodized coating shows more dramatic changes after 30 days than the FPL coating.
Also, in both types of coatings, with increasing heating temperature, the wettability decreases and the contact angle increases.
The changes in the anodized coatings are more significant than in FPL coatings.
Measuring the glossiness of the coating before and after heating indicates that the gloss and the surface roughness of the coating do not change.
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