Phosphorus-containing diamine for flame retardancy of high functionality epoxy resins. Part II. The thermal and mechanical properties of mixed amine systems

摘要: Bis(4-aminophenoxy)phenyl phosphonate (BAPP) was used in various ratios combination with diethyltoluenediamine (DETDA) to investigate the effect of increasing phosphorous addition upon thermal and mechanical properties diglycidyl ether bisphenol A (DGEBA) tetra glycidyl dimethylenedianiline (TGDDM) based epoxy networks. Increasing content shown decrease temperature initial onset degradation, while char yield at 540 °C increased both nitrogen air atmosphere. At 700 °C, however, formation be dependent atmosphere an oxidative environment promoting further chain scission, a non-oxidative promoted through crosslinking reactions. found produce only modest decreases glass transition temperatures, no significant deleterious effects physical such as flexural CTE were observed.