Effect of composition on aqueous polyurethane dispersions derived from polycarbonatediols

作者: Da-Kong Lee , Hong-Bing Tsai , Ruey-Shi Tsai

DOI: 10.1002/APP.24150

关键词:

摘要: Aqueous polyurethane dispersions derived from isophorone diisocyanate, various polycarbonatediols of different molecular weights, and dimethylol butyric acid were prepared by a dispersing procedure modified to enhance weight. Particle size, average weight, tensile properties determined. The molar ratio reactants affected the significantly, with trends described as effects their ionic group polycarbonatediol soft-segment contents. weight also significantly particle size aqueous film properties. As decreased, moduli cast films increased, expected. However, strength decreased because decrease in elongation at break. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 4419–4424,

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