Highly Efficient Plasticizers-Antipirenes for Epoxy Polymers

Abstract

Abstract—The possibility of using oligo(resorcinophenyl phosphate) with terminal phenyl groups (Fylolflex) and trichloropropyl phosphate as effective plasticizers for epoxy polymers has been investigated. The use of oligo(resorcinophenyl phosphate) with terminal phenyl groups and trichloropropylphosphate is an effective way to generate epoxy compositions with improved physical and mechanical properties. It has been found that the resistance of the epoxy composite to bending loads increases by 2 times, the resistance to impact increases by 2–3 times, and thermal and heat resistances also increase. Increased yield of carbonized structures when oligo(resorcinophenyl phosphate) with terminal phenyl groups and trichloropropyl phosphate are introduced in the epoxy composition results in reduced release of volatile thermolysis products in the gas phase. The latter reduces the flammability of the epoxy composite, which manifests itself in reducing the loss of mass when ignited in air from 78 to 2.3–4.7% and increasing the oxygen index from 19 to 28–31 vol %; thus, the material belongs to the class of hardly flammable materials.