Zhu SW, Shi WF (2002b) Synthesis and photopolymerization of hyperbranched polyurethane acrylates applied to UV curable flame retardant coatings. Polymer International 51(3), 223-227. [In English]
Web link: http://dx.doi.org/10.1002/pi.827
Keywords:
flame retardant; polyurethane acrylate; phosphorus; coating; UV curing; tris(1,3-dichloro-2-propyl) phosphate; fire retardation; foam; temperature; polymer; phase; part;
Abstract: A series of hyperbranched polyurethane acrylates containing phosphorus were prepared by reaction of a phosphorus-containing triol with toluene-2,4-diisocyanate and hydroxylethyl acrylate at given ratios. The resins obtained were found to polymerize rapidly in the presence of a photofragmenting initiator under UV irradiation, and the maximum polymerization rate increased with temperature up to 125degreesC, then decreased quickly. The UV cured films have flame retardancy with a limiting oxygen index of 27.0. (C) 2002 Society of Chemical Industry.
