Preparation and physical properties of polyurethane flame retardant coatings using phosphorus-containing lactone modified polyesters |
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Authors: | Hong-Soo Park Soon-Yong Kwon Kum-Jong Seo Wan-Bin Im Jong-Pyo Wu and Seong-Kil Kim |
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Affiliation: | (1) Myong Ji University, Korea;(2) Sam-Hwa Paints Ind. Co. Ltd., Korea |
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Abstract: | Two-component polyurethane flame retardant coatings were prepared using phosphorus-containing lactone modified polyesters
(PLMPs) and polyisocyanate. PLMPs were synthesized by poly-condensation of dimethyl phenylphosphonate, a flame retardant component
with polycaprolactone, adipic acid, and trimethylolpropane. PLMPs were prepared with dimethyl phenylphosphonate content from
10 to 20 wt%. It was found that various physical properties of these new flame retardant coatings were comparable to non-flame
retardant coatings. The flammability of coatings depends strongly on the dimethyl phenylphosphonate content in PLMP. Coatings
with 20 wt% dimethyl phenylphosphonate content did not burn in the vertical burning test.
Dept. of Chem. Eng., Yongin 449-728, Korea.
Ansan 425-110, Korea. |
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