阻燃热塑性聚酯弹性体复合材料制备及性能  

Prepartion and Properties of Flame Retardant Thermoplastic Polyester Elastomer Composites

作　　者：郭正波[1] 夏利平[1] 何正宏[1] 黄安民[1] Guo Zhengbo;Xia Liping;He Zhenghong;Huang Anmin(Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412007,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《工程塑料应用》2020年第4期20-24,36,共6页Engineering Plastics Application

摘　　要：以二乙基亚膦酸铝盐(AlPi)和三聚氰胺氰脲酸盐(MCA)为阻燃剂,添加到热塑性聚酯弹性体(TPEE)中,采用挤出造粒方法制备出高性价比的阻燃TPEE复合材料。首先采用热失重分析仪研究了两种阻燃剂的热稳定性,进一步采用热失重分析、极限氧指数测试、垂直燃烧测试、力学性能测试以及扫描电子显微镜等对阻燃TPEE材料的热稳定性、阻燃性能、燃烧性能、力学性能以及复合材料的微观形貌进行了研究。结果表明,在相同阻燃剂用量下,添加AlPi的阻燃复合材料的阻燃效果、力学性能均优于添加MCA的阻燃复合材料,采用AlPi与MCA复配使用制备的阻燃TPEE复合材料的阻燃效果、力学性能介于二者之间,当TPEE,AlPi和MCA用量分别为83%,10%和5%时,阻燃复合材料的拉伸强度为24.19 MPa,断裂伸长率为515%,极限氧指数为30%,垂直燃烧测试达到V–0级。AlPi与MCA复配使用可提升阻燃TPEE材料的成炭性能和高温热稳定性。Aluminum tris-(diethylphosphinate)(AlPi)and melamine cyanurate(MCA)were used with thermoplastic polyester elastomer(TPEE)to prepare the cost-effective flame ratardant TPEE composite by extrusion granulation method.The thermal stability of the two flame retardants were studied by thermogravimetric(TG)analysis,then the thermal stability,flame retardant performance,mechanical properties and morphology of flame ratardant TPEE were investigated by TG analysis,limiting oxgen index(LOI)test,vertical burning test,mechanical performance measurements and scanning electron microsopy.The results indicate that at the same dosage of flame retardants,the mechanical properties and flame retardancy of composite with AlPi are better than those of composite with MCA,and the properties of composite with the combination of AlPi and MCA are between the two flame retardants.When the dosage of TPEE,AlPi and MCA are 83%,10%and 5%respectively,the composite can possess the tensile strength of 24.19 MPa and elongation at break of 515%,meanwhile,possess LOI of 30%and reach V–0 flame retardant level.The combination of AlPi and MCA can enhance char-forming and high temperature thermal stability of the flame ratardant TPEE.

关 键 词：热塑性聚酯弹性体 二乙基亚膦酸铝盐 三聚氰胺氰脲酸盐 阻燃 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]