FLAME-RETARDANT RIGID PU FOAM WITH A NOVEL REACTIVE PHOSPHORAMIDATE AND EXPANDABLE GRAPHITE

摘要：

　　A novel reactive phosphoramide named diethyl-N,N-bis(2-hydroxyethyl) phosphoramide (DEPA) and expandable graphite (EG) were combined together to flame retard rigid PU foam (RPUF) via free box-foaming.DEPA could be introduced to PU molecular chain with chain extension reaction of double hydroxyl.The LOI value of RPUF achieved 30.4% when 8 wt% EG and 16 wt% DEPA were incorporated.Meanwhile, this flame retardant system obtained the lowest peak heat release rate (pHRR, 139.9 kW/m2) in the samples studied.Thermogravimetric analysis (TGA) results show that EG/DEPA system enhanced the residue chars of RPUF.DEPA and EG showed obvious synergetic flame retardant in RPUF.

作者: F.Li B.Zhao D.Y.Liu Y.Q Liu

作者单位: Shanxi Province Key Laboratory of Functional Nanocomposites, North University of China,Taiyuan 030051, China

会议类型: 国际会议

会议名称: 4th International Symposium on Flame-Retardant Materials & Technologies(ISFRMT 2016)(第四届阻燃材料与技术国际研讨会 )

会议地点: 长春

会议语种:英文

页码: 80-81

在线出版日期: 2016-06-15（万方平台首次上网日期，不代表论文的发表时间）