Flame retardant polycyanurate thermosets from the cyanate esters of triphenylphosphine oxide
作者:Matthew C. Davis、Michael D. Garrison、Kamran B. Ghiassi、Thomas J. Groshens、Neil D. Redeker
DOI:10.1002/pola.28991
日期:2018.5.15
600 °C. All three phosphorus‐containing cyanate esters are low flammability in an open flame. They make highly combustible cyanate esters resins less flammable simply by blending. Mixing 10 wt% dicyanate ester 2 into bisphenol A or E dicyanate esters makes them rate V‐0. Published 2018.† J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 1100–1110
从溴苯甲醚开始,以良好的总收率合成了三种含磷的氰酸酯。具有间位构型的二氰酸和三氰酸酯最稳定,而对位则不太稳定。的对位二氰酸酯异构体特别是从大气中受到水的影响。所述元二氰酸酯2在268具有与玻璃化转变良好的热性能°在600℃的空气中65%C和焦炭产率。所有三种含磷的氰酸酯在明火中均具有低易燃性。只需混合即可使易燃的氰酸酯树脂不易燃。将10 wt%的二氰酸酯2混合到双酚A或E的二氰酸酯中,使它们的速率为V-0。2018年出版。†J.Polym。科学,A部分:Polym。化学 2018,56,1100至1110年