ADP基无卤阻燃PC/ABS合金体系开发OACSTPCD
Development of ADP Based Halogen-Free Flame Retardant PC/ABS Alloy System
为提升聚碳酸酯/丙烯腈-丁二烯-苯乙烯共聚物(PC/ABS)合金的阻燃性能,采用复配协效的方法探究阻燃配方体系.以PC/ABS复合材料的极限氧指数(LOI)和垂直燃烧等级(UL-94)为主要考察指标,构建了以二乙基次膦酸铝(ADP)为主体阻燃剂,9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)为协效阻燃剂的二元阻燃配方体系.将PC/ABS和二元阻燃体系混合,制备了PC/ABS/二元阻燃剂复合材料.通过UL-94垂直燃烧测试、氧指数(LOI)测试、力学性能测试、锥形量热测试和热重分析测试等表征方式,研究PC/ABS复合材料的阻燃性能、力学性能、燃烧特性和热稳定性.结果表明:当ADP与DOPO的质量比为3∶1,二元阻燃配方体系总添加量为15.0%时,PC/ABS复合材料具有优异的阻燃性能、力学性能、燃烧特性和热稳定性.
In order to improve the flame retardancy of polycarbonate/acrylonitrile-butadiene-styrene(PC/ABS)alloy,the flame retardant formula system was explored by the method of compound synergy.Taking the limiting oxygen index(LOI)and vertical combustion grade(UL-94)of PC/ABS composites as the main indexes,a binary flame retardant formula system with aluminum diethylphosphinate(ADP)as the main flame retardant and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO)as the synergistic flame retardant was constructed.PC/ABS/binary flame retardant composites were prepared by mixing PC/ABS and binary flame retardant systems.The flame retardancy,mechanical properties,combustion characteristics and thermal stability of PC/ABS composites were studied by UL-94 vertical combustion test,oxygen index(LOI)test,mechanical property test,cone calorimetry test and thermogravimetric analysis test.The results show that when the mass ratio of ADP to DOPO is 3∶1 and the total addition amount of binary flame retardant formula system is 15.0%,PC/ABS composites have excellent flame retardancy,mechanical properties,combustion characteristics and thermal stability.
王百年;王朋辉;张如;葛仁杰;张少奇;杨保俊
合肥工业大学化学与化工学院,安徽 合肥 230009
PC/ABS合金二乙基次膦酸铝9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物阻燃性能
PC/ABS alloyADPDOPOFlame retardancy
《塑料科技》 2024 (002)
31-35 / 5
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