Effects of particle sizes and shapes of zinc metal on the properties of anticorrosive coatings

• Published in: Progress in organic coatings Vol. 46; no. 4; pp. 324 - 332
• Main Author: KALENDOVA, Andréa
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.06.2003; Elsevier Sequoia
• Subjects: Anticorrosion efficiency; Applied sciences; Coating; Coatings. Paints, varnishes and inks; Exact sciences and technology; Film formation and curing, properties, testing; Lamellar particle; Polymer industry, paints, wood; Spherical particle; Zinc powder; Zinc powder; Anticorrosion efficiency; Spherical particle; Coating; Lamellar particle; Particle size; Spherical shape; Coating material; Inorganic pigment; Ester polymer; Anticorrosive paint; Epoxy resin; Mechanical properties; Paint film; Anticorrosion pigment; Corrosion protection; Physical properties; Lamellar structure; Water absorption; Performance
• ISSN: 0300-9440; 1873-331X
• DOI: 10.1016/S0300-9440(03)00022-5

The paper deals with a study of the zinc particle sizes and shape effects on the anticorrosive coating properties. As a binder the epoxyester resin is used. The zinc particle size and shape effects are discussed from the mechanical coating properties, film permeabilities to water vapor and above all the pigment anticorrosion protection efficiency points of view. The connection between the spherical particle sizes and the coating anticorrosive efficiency was found. The smaller particle sizes mean better anticorrosive coating properties. The lamellar zinc particles exhibit the highest anticorrosion efficiency at a concentration around 20 vol.%.