INFLUENCE OF THE COMPOSITION OF THE CURING SYSTEM ON THE PROPERTIES OF POLYESTER URETHANES FOR APPLIED COATINGS

摘要

Tests were carried out to determine the optimum composition of a curing system to produce polyester urethanes for applied coatings with superior physicomechanical properties. The investigations were conducted on industrially produced prepolymers using glycerin, triethanolamine, butanediol, ethylene glycol and aromatic diamine as curing agents. It was found that use of an amine curing agent made it possible to broaden the range of physicomechanical characteristics of urethane elastomers, and to produce materials with a strength of over 7 MPa. It has been shown, that by varying the composition of the curing systems, and by appropriate selection of the type of isocyanate prepolymer, it was possible to manufacture pour coatings suitable for use in building applications. 6 refs. (Article translated from Plasticheskie Massy, No.11, 2005, P.7-8)