May 11, 2010

Midwest Biopolymers & Biocomposites Workshop


Poster Abstracts

107: Practical Waterborne Agricultural Oil-Based Coatings

Richard C. Larock

Department of Chemistry, Iowa State University, Ames, Iowa

Environmentally-friendly, vegetable oil-based waterborne polyurethane dispersions with very promising coating properties have been successfully synthesized from various vegetable oil-based polyols. The soybean waterborne polyurethane (SPU) dispersions exhibit a uniform particle size and the resulting films, containing 50-60 weight % vegetable oil-based polyol, exhibit tensile stress-strain behavior ranging from elastomeric to ductile polymers to rigid plastics. These novel SPU films exhibit thermophysical and mechanical properties that are comparable to those of PUs from petroleum-based polyols, which suggests promising applications of these new biobased materials, particularly in the area of adhesives and decorative and protective coatings.