DBDPE/HBCD及CIIR对ABS的协同阻燃及增韧
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摘要
采用六溴环十二烷(HBCD)与十溴二苯乙烷(DBDPE)复配作为阻燃剂、三氧化二锑(Sb_2O_3)为阻燃协效剂、氯化丁基橡胶(CIIR)为增韧剂,对丙烯腈-丁二烯-苯乙烯接枝共聚物(ABS)进行改性。采用缺口冲击、极限氧指数、垂直燃烧、扫描电子显微镜(SEM)等测试方法研究了阻燃剂对CI-IR和ABS力学性能与阻燃性能的影响。结果表明,HBCD与DBDPE对ABS有协效阻燃作用;当阻燃剂质量分数为12%、CIIR质量分数为10%时,ABS复合材料的极限氧指数为27.5%,垂直燃烧测试达到UL 94V-0级别,缺口冲击强度为18kJ/m~2。
Acrylonitrile-butadiene-styrene graft copolymer(ABS)was modified with hexabromocyclododecane(HBCD)and decabromodiphenylethane(DBDPE)as flame retardant and antimony trioxide(Sb_2O_3)as synergist,and chlorobutyl rubber(CIIR)as toughener.The effects of flame retardant and CIIR on impact strength and flame retardancy of ABS were studied by means of notched impact,limited oxygen index(LOI),vertical burning,scanning electron microscope(SEM).The results showed that HBCD and DBDPE have a synergistic flame retardant effect on ABS.When the mass fraction of flame retardant additive is 12% and the mass fraction of CIIR additive is 10%,LOIand vertical combustion test of ABS composite can reach 27.5% and UL94 V-0 rate,respectively,while the notch impact strength is 18 kJ/m~2.
Acrylonitrile-butadiene-styrene graft copolymer(ABS)was modified with hexabromocyclododecane(HBCD)and decabromodiphenylethane(DBDPE)as flame retardant and antimony trioxide(Sb_2O_3)as synergist,and chlorobutyl rubber(CIIR)as toughener.The effects of flame retardant and CIIR on impact strength and flame retardancy of ABS were studied by means of notched impact,limited oxygen index(LOI),vertical burning,scanning electron microscope(SEM).The results showed that HBCD and DBDPE have a synergistic flame retardant effect on ABS.When the mass fraction of flame retardant additive is 12% and the mass fraction of CIIR additive is 10%,LOIand vertical combustion test of ABS composite can reach 27.5% and UL94 V-0 rate,respectively,while the notch impact strength is 18 kJ/m~2.
引文
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[2]王光开,杨兵,范志山,等.苯并噁嗪与微胶囊红磷及丁腈橡胶对ABS的阻燃增韧[J].高分子材料科学与工程,2012,28(11):38-41.
[3]李斌,蒋东旭,孟凡旭,等.ADP-12复配无卤阻燃体系对ABS阻燃及力学性能的影响[J].弹性体,2015,25(1):1-7.
[4]唐若谷,黄兆阁.卤系阻燃剂的研究进展[J].科技通报,2012,28(1):129-132.
[5]陈玉琴,张志德.含溴阻燃剂的现状及发展前景[J].化学工程师,1998(2):33-35.
[6]肖永华.溴系阻燃剂发展动向浅析[J].江西化工,2005(3):46-48.
[7]欧育湘,彭治汉,连旦军.一种新型热稳定六溴环十二烷阻燃剂[J].塑料科技,1999(1):1-2.
[8]毛欣怡.溴系阻燃剂六溴环十二烷的热稳定性研究[D].石家庄:河北科技大学,2014.
[9]李响,杨亮,黄险波,等.十溴二苯乙烷阻燃PBT性能研究[J].中国塑料,2005(4):75-77.
[10]汝绍刚.国内十溴二苯乙烷的研究进展[J].山东化工,2006,35(3):16-18.
[11]WANG J J,LI W X,FENG L J.Fire performances,hot properties and decomposition kinetics of Sb2O3/DBDPE/RTV[J].Advanced Materials Research,2012(560/561):117-121.
[12]ZANG C G,CAO X P,ZHANG J C.Maleic anhydride grafted polymers toughening and flame retardant polystyrene study on modification[J].Advanced Materials Research,2013(652/654):423-429.
[13]朱婧文,刁硕,刘成斌.溴代阻燃剂[J].科技信息,2012(25):26-27.
[14]ZHU Y C,WANG B,ZHOU W,et al.Influence of free volume on damping properties for CIIR and CIIR/PEA investigated by positron[J].Materials Science Forum,2008,607(2):91-93.
[15]NAN Z J,LI Z J,WANG J C.Properties analysis of CIIR/HBP-OMMT damping composites[J].Materials Science Forum,2017,893:3-6.