Synthesis and application of amino resinous intumescent flame retardants

Abstract

A kind of amino resinous intumescent flame retardants (IFR) was firstly synthesized, and the structure of the main composition was determined to be a caged bicyclic macromolecule containing phosphorus. The 30% weight of IFR was added into the flexible polyurethane foam (FPUF) to get retardant FPUF which has 26.5% of the limiting oxygen index. The date of CONE show that the heat release, smoke and gas of the flame retardant FPUF are much decreased and the activation energy decreases by 54 kJ•mol^-1. It shows that the IFR can catalyze decomposition and carbonization of FPUF.

Keywords

intumescent flame retardant / flexible polyurethane foam / caged bicyclic macromolecule

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