Flame-Retardant Behavior of Typical Adding-Type Phohosphates and Expandable Graphite in Polyurethane Foams

摘要：

　　The effect of three typical phosphates, dimethyl phosphate (DP), (5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl) methyl dimethyl phosphonate P-oxide (EMD) and dimethyl methylphosphonate (DMMP) were respectively applied in the flame retardant rigid polyurethane foam(RPUF) with expandable graphite (EG), then their flame retardant behaviours and mechanisms were compared.The results show that all three kinds of phosphates can exert excellent flame retardant effect in gas phase by releasing free radicals PO and PO2, which can effectively quench the flammable active free radicals from the matrix.DMMP has the best flame retardant effect due to its high phosphorus content and high flame retardant efficiency in gas and condensed phase.

作者: Z.Wang L.J.Li L.J.Qian Y.J.Chen B.Xu

作者单位: School of Materials Science and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China

会议类型: 国际会议

会议名称: 5th International Symposium on Flame-Retardant Materials & Technologies(ISFRMT 2018)(第五届阻燃材料与技术国际研讨会 )

会议地点: 杭州

会议语种:英文

页码: 137-138

在线出版日期: 2018-06-14（万方平台首次上网日期，不代表论文的发表时间）