A Novel Method to Formulate Pigmented Powder Coatings by Ultrafine Powders
نویسندگان
چکیده
Powder coatings are a green alternative to conventional solvent-borne liquid coatings, but they have the intrinsic drawback of color-matching and adjustment in production with extrusion process. In this study, an industrially applicable approach formulate color powder utilizing ultrafine powders, i.e., powdery blending pressing method, was invented. This novel method validated by comparing samples prepared Method 1 extra ultramarine pigment at 3%; 2 original same coating 6% regular (coarse) coatings; 3 for two formulations as 2. The powders were similar particle sizes size distributions, three commonly used binders, namely polyester-epoxy hybrid, polyester/TGIC (triglycidyl isocyanurate), polyurethane (PU). Methods had flow abilities terms angle repose (AOR) avalanche (AVA). performance new close or better than ones specular gloss, DOI (distinctness-of-image), reflection haze values, being superior via also exhibited comparable distribution cross-sections ones, whereas inferior dispersion. can greatly enhance efficiency reduce cost compound colors, especially small batch manufacturing.
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ژورنال
عنوان ژورنال: Powders
سال: 2022
ISSN: ['2674-0516']
DOI: https://doi.org/10.3390/powders1040015