氮-磷无卤阻燃剂对热塑性聚酯弹性体性能的影响
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摘要
采用氮-磷无卤阻燃剂制备出具有良好阻燃性能的热塑性聚酯弹性体(TPEE)。研究表明阻燃剂对TPEE阻燃性能和热性能都有显著改善,其中三聚氰胺磷酸酯(MP)阻燃剂的阻燃效果最好,氧指数可以达到30%,垂直燃烧达到UL-94V-0级,点燃时间为341s,到达热释放速率峰值的时间为355s的p_(kHRR)达到134KW/m~2,总释放热(THR)最小。电学性能研究表明,由于阻燃剂的加入,抑制了TPEE极性基团的极化和能量损耗,降低了TPEE的介电常数,提高了其绝缘性能。氮-磷无卤阻燃剂的添加对热塑性聚酯弹性体的性能影响很大。
In order to improve the flame retardant properties of thermoplastic polyester elastomer(TPEE),the thermoplastic polyester elastomer with good flame retardancy was prepared by using phosphorusnitrogen halogen-free flame retardants.The results show that the flame retardancy and thermal properties of the TPEE were significantly improved.The flame retardant effect of melamine phosphate is the best among them,and oxygen index could reach 30%,vertical combustion level was UL-94 V-0,ignition time is 341 s,the peak heat release rate reached 134 KW/m~2 at 355 sand the total release heat was minimal.Electrical performance studies have shown that because of the addition of flame retardants,not only suppressed the polarization and energy loss of TPEE polar groups,and reduced the dielectric constant of TPEE,but also the insulation performance was improved.It is indicated that the addition of nitrogen-phosphorus halogen-free flame retardants has great influence on the properties of thermoplastic polyester elastomer.
In order to improve the flame retardant properties of thermoplastic polyester elastomer(TPEE),the thermoplastic polyester elastomer with good flame retardancy was prepared by using phosphorusnitrogen halogen-free flame retardants.The results show that the flame retardancy and thermal properties of the TPEE were significantly improved.The flame retardant effect of melamine phosphate is the best among them,and oxygen index could reach 30%,vertical combustion level was UL-94 V-0,ignition time is 341 s,the peak heat release rate reached 134 KW/m~2 at 355 sand the total release heat was minimal.Electrical performance studies have shown that because of the addition of flame retardants,not only suppressed the polarization and energy loss of TPEE polar groups,and reduced the dielectric constant of TPEE,but also the insulation performance was improved.It is indicated that the addition of nitrogen-phosphorus halogen-free flame retardants has great influence on the properties of thermoplastic polyester elastomer.
引文
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[15]朱新军,彭治汉,李文刚,等.阻燃TPEE非等温热氧降解动力学,东华大学学报,2009,35(1):17~22.
[16] Zhao P,Liu S,Xiong K,et al.Highly Flame Retardancy of cotton Fabrics with a Novel Phosphorus/nitrogen/silicon Flameretardant Treating System[J].Fibers&Polymers,2016,17(4):569~575.
[17]冯才敏.TiO2对PP/MPP/PEPA膨胀阻燃体系的协同作用[J].材料科学与工程学报,2010,28(1):76~80.
[2]祝爱兰,李洪元,吴立明.热塑性聚酯弹性体[J].弹性体,2005,15(1):70~75.
[3] Zhong Y,Wu W,Lin X,et al.Flame-retarding Mechanism of OrganicallyModifiedMontmorilloniteandPhosphorousNitrogen Flame Retardants for the Preparation of a Halogenfree, Flame-retarding Thermoplastic Poly(ester ether)Elastomer[J].Journal of Applied Polymer Science,2015,131(22):547~557.
[4] Lilaonitkul A,Cooper S L.Properties of Polyether-Polyester ThermoplasticElastomers[J]. RubberChemistry&Technology,1977,50(1):1~23.
[5] Moriuchi K,Hayami H.Flame-retardant Resin Composition,and Insulated Electric Wire,Flat Cable,and Molded Article,Which are Made Using Same[P].EP,2471871,2012.
[6]奚溪,张群朝,赵辉,等.卤-锑阻燃体系对热塑性聚酯弹性体性能的影响[J].工程塑料应用,2013,41(5):82~88.
[7]吴唯,钟宇华,吴仁,姜晨晨,蔺兴清.磷-氮阻燃剂与酚醛成炭剂复配阻燃热塑性聚醚酯弹性体[J].高分子材料科学与工程,2015,31(1):153~157.
[8] TSU-SHANG L,WANG C.Synergistic Effect of a Phosphorus-Nitrogen Flame Retardant on Engineering Plastics[J].Journal of Applied Polymer Science,2010,92(1):410~417.
[9] Wang L H,Ren Y L,Wang X L,et al.Fire Retardant Viscose Fiber Fabric Produced by Graft Polymerization of Phosphorus and Nitrogen-containing Monomer[J].Cellulose,2016,23(4):1~12.
[10]韩黎刚,郭正虹,方征平.金属氢氧化物协效阻燃聚烯烃的研究进展[J].材料科学与工程学报,2015,33(6):923~926.
[11] Nguyen C,Kim J.Synthesis of a Novel Nitrogen-phosphorus Flame Retardant Based on Phosphoramidate and Its Application to PC,PBT,EVA,and ABS[J].Macromolecular Research,2008,16(7):620~625.
[12] Ding H,Xia C,Wang J,et al.Inherently Flame-retardant Flexible Bio-based Polyurethane Sealant with Phosphorus and Nitrogen-containing Polyurethane Prepolymer[J].Journal of Materials Science,2016,51(10):5008~5018.
[13] Seema,Agrawal,Anudeep,et al.Synthesis,Characterization of Phosphorus Containing Diamide-diimide-tetraamines Based on LTryptophan Amino Acid and Their Effect on Flame Retardancy of Epoxy Resins[J].Chinese Journal of Polymer Science,2014,32(2):197~208.
[14] Lee T Y,Lee C H,Cho S,et al.Enhancement of Physical Properties of Thermoplastic Polyether-ester Elastomer by Reactive Extrusion with Chain Extender[J].Polymer Bulletin,2011,66(7):979~990.
[15]朱新军,彭治汉,李文刚,等.阻燃TPEE非等温热氧降解动力学,东华大学学报,2009,35(1):17~22.
[16] Zhao P,Liu S,Xiong K,et al.Highly Flame Retardancy of cotton Fabrics with a Novel Phosphorus/nitrogen/silicon Flameretardant Treating System[J].Fibers&Polymers,2016,17(4):569~575.
[17]冯才敏.TiO2对PP/MPP/PEPA膨胀阻燃体系的协同作用[J].材料科学与工程学报,2010,28(1):76~80.