High throughput combinatorial characterization of thermosetting siloxane-urethane coatings having spontaneously formed microtopographical surfaces

• Published in: JCT research Vol. 4; no. 2; pp. 131 - 138
• Main Authors: MAJUMDAR, Partha, STAFSLIEN, Shane, DANIELS, Justin, WEBSTER, Dean C
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.06.2007; American Coatings Association, Inc; Springer Nature B.V
• Subjects: Adhesive strength; Applied sciences; Atomic force microscopy; Biodeterioration. Biofouling; Biological and medical sciences; Biotechnology; Chemical properties; Coatings; Coatings industry; Coatings. Paints, varnishes and inks; Combinatorial analysis; Contact angle; Energy measurement; Exact sciences and technology; Film formation and curing, properties, testing; Fundamental and applied biological sciences. Psychology; Industrial applications and implications. Economical aspects; Polymer industry, paints, wood; Polyurethane resins; Silicone rubber; Silicones; Siloxanes; Surface energy; Topographical drawing; Units of measurement; Urethanes; Atomic force microscopy; Adhesivity; Coating material; Film formation; Thermoplastic rubber; Contact angle; Surface topography; Experimental study; Urethane copolymer; Polyurethanes; Thermosetting resin; Crustacea; Arthropoda; Biofouling; Antifouling protection; Surface properties; Cirripedia; Balanus; Invertebrata; Siloxane copolymer; Silicones; Thermoset
• ISSN: 1547-0091; 1945-9645; 2168-8028; 1935-3804
• DOI: 10.1007/s11998-007-9015-2

High throughput combinatorial characterization was performed on thermosetting siloxane–urethane coatings in order to find a correlation between the characterization techniques, surface topography, and adhesion strength of barnacles. A series of coatings having microtopographical surfaces with different domain sizes were prepared based on a thermosetting siloxane–urethane system. This microtopography was formed spontaneously during the film-formation process. These surfaces were characterized by atomic force microscopy (AFM), surface energy, dynamic contact angle, and pseudo barnacle pull-off adhesion and were compared to pure polyurethane (PU) and silicone rubber control. Surface energy and dynamic contact angles were measured by an automated surface energy measurement system and pull-off adhesion values were obtained from a high throughput pull-off adhesion measurement unit. The results were compared with the adhesion strength of barnacles.