摘要
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.
作者
王百年
王朋辉
张如
葛仁杰
张少奇
杨保俊
WANG Bai-nian;WANG Peng-hui;ZHANG Ru;GE Ren-jie;ZHANG Shao-qi;YANG Bao-jun(Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China)
出处
《塑料科技》
CAS
北大核心
2024年第2期31-35,共5页
Plastics Science and Technology
