Effect of curing process on simulated antisoiling properties of sol–gel coating on pine sapwood

• Published in: Journal of Coatings Technology and Research Vol. 7; no. 4; pp. 441 - 448
• Main Authors: Nikkola, Juha, Mahlberg, Riitta, Mannila, Juha, Jämsä, Saila
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.07.2010; Springer; American Coatings Association, Inc
• Subjects: Analysis; Applied sciences; Chemistry and Materials Science; Coatings; Coatings industry; Coatings. Paints, varnishes and inks; Corrosion and Coatings; Degradation and preservation; Exact sciences and technology; Industrial Chemistry/Chemical Engineering; Materials Science; Medical research; Medicine, Experimental; Monounsaturated fatty acids; Polymer industry, paints, wood; Polymer Sciences; Surfaces and Interfaces; Thin Films; Tribology; Uses; Wood; Wood. Paper. Non wovens; Oleophobicity; Thermal curing; Pine sapwood; Hybrid coating; Hydrophobicity; Sol–gel; Antisoiling; Hybrid material; Roughness; Softwood; Pinus sylvestris; Wettability; Zirconium oxide; Gymnospermae; Surface properties; Protective coatings; Sol-gel; Mechanical properties; Durability; Experimental study; Abrasion resistance; Silicon oxides; Sol gel process; Morphology; Antifouling protection; Coniferales; Spermatophyta; Titanium oxide
• ISSN: 1547-0091; 1945-9645; 1935-3804
• DOI: 10.1007/s11998-009-9217-x

Recently, inorganic–organic hybrid coatings produced by the sol–gel route have proven to be a potential protective treatment for wooden surfaces. In this study, the effect of curing process on simulated antisoiling properties of sol–gel coating was investigated. The sol–gel coating was spray-coated on pine sapwood and cured with different temperature and time combinations. The antisoiling properties were studied by measuring the water contact angle of the coating after different curing processes. In addition, abrasion resistance and contact angle of oleic acid were measured. An optical profilometer was used to investigate surface roughness of the coating. Sufficient hydro- and oleophobicity were obtained with all of the curing parameters. The comparison between curing parameters showed that lower temperature and 1–3 h curing time leads to significant improvement in the durability of the water and oil repellent properties of the coating.