EFFECT OF RARE EARTH TRIFLUOROMETHANESULFONATE ON THE FLAME RETARDANCY AND THERMO-OXIDATIVE STABILITY OF POLYETHYLENE

摘要：

　　Effects of two kinds of rare earth trifluoromethanesulfonates, Yb(OTf)3 and La(OTf)3, on the flame retardancy and thermo-oxidative stability of polyethylene (PE) were investigated.Electron spin resonance (ESR) spectroscopy proved the free radical-trapping ability of Yb(OTf)3 was stronger than La(OTf)3.Thermogravimetric analysis (TG) showed that Yb(OTf)3 could improve the thermo-oxidative stability of PE more obviously compared with La(OTf)3.The flame retardancy of PE/intumescent flame retardant (IFR) composite was improved as well when 0.4 wt% IFR was substituted by RE(OTf)3.The effect of Yb(OTf)3 on the flame retardancy of PE was better than La(OTf)3.The improvement on the flame retardancy and thermo-oxidative stability is due to the combined action of anion and cation.However, the different effects are attributed to the different reactivity of rare earth elements.

作者: S.Y.Ran Z.H.Guo Y.Q.Pan Z.P.Fang

作者单位: Laboratory of Polymer Materials and Engineering, Ningbo Institute of Technology,Zhejiang University, Laboratory of Polymer Materials and Engineering, Ningbo Institute of Technology,Zhejiang University,

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: 93-94

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）