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Synthesis and Application of Hexaallylamino-cyclo-triphosphazene as Flame Retardant in Latex Coatings |
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| Authors: | Jana Machotova Lucie Zarybnicka Adela Ruckerova Radka Bacovska Jozef Rychly Ales Imramovsky |
| Affiliation: | 1. Institute of Chemistry and Technology of Macromolecular Materials, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic;2. Department of Chemistry, Faculty of Science, Masaryk University, Brno, Czech Republic;3. Polymer Institute, Slovak Academy of Sciences, Bratislava, Slovak Republic;4. Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic |
| Abstract: | The paper deals with a novel flame retardant and its application in waterborne coatings. The flame retardant was synthesized from hexachloro-cyclo-triphosphazene by nucleophilic substitution with allylamine. Functionalized emulsion copolymers bearing in the structure hexaallylamino-cyclo-triphosphazene were prepared by the semicontinuous emulsion polymerization. The latexes were used as the main component of transparent coating systems cured by melamine formaldehyde resin. The incorporation hexaallylamino-cyclo-triphosphazene did not affect transparency, flexibility, and toughness of resulting coatings and increased their flame stability in terms of the amount of smoke release and maximum average rate of heat emission indicating a slower flame spread during the material combustion. |
| Keywords: | Cone calorimeter core–shell latex emulsion polymerization flame retardant phosphazene |