白度化包裹红磷/膨胀型阻燃剂协效阻燃ABS的研究  

Synergistic effect of whitening microencapsulized red phosphorus on intumescent flame retardant ABS

作　　者：吴伟 董翔 

机构地区：[1]安徽理工大学能源与安全学院煤矿安全高效开采省部共建教育部重点实验室,淮南232001

出　　处：《化工新型材料》2017年第9期130-132,135,共4页New Chemical Materials

摘　　要：采用极限氧指数(LOI)测试、垂直燃烧UL-94测试、热重分析(TG)和锥形量热仪(CCT)测试研究了膨胀阻燃剂(IFR)/白度化包裹红磷(WMRP)对ABS复合材料的阻燃性能和热稳定性的影响。其中IFR是由硅包裹APP(SiMCAPP)和可膨胀石墨(EG)以质量比为1∶3的比例组成的。结果表明,固定IFR和WMRP总质量分数为15%时,当WMRP的添加量为3%(wt,质量分数,下同)时,阻燃ABS复合材料LOI值最大为30.2%,UL-94测试达到V-0级,阻燃材料在700℃的残炭率为23.7%。锥形量热仪实验表明,相对于纯ABS添加3%WMRP的复合材料其最大热释放速率降低至201.8KW/m^2,总的热释放速率降低至60.7MJ/m^2,总烟释放量降低了47.9%。研究结果显示WMRP与膨胀阻燃剂之间存在阻燃协效作用,加入适量的WMRP可以提高膨胀阻燃剂阻燃效果。The flame retardant and thermal property of ABS composite were investigated by limiting oxygen,UL-94 test,cone calorimeter test and thermogravimetric analysis.The intumescent flame retardant（IFR）system was consisted by expandable graphite（EG）and silicon gel package APP（Si-MCAPP）.The results showed that when the mass fraction of IFR and WMRP（whitening microencapsulized red phosphorus）was controlled to 15wt%,with the addition of 3wt%WMRP,the flame retardance of ABS composite was best.LOI value was 30.2% and UL-94 vertical burning reached V-0grate.Meanwhile,the carbon yield was 23.7% at 700℃.The cone calorimetry test showed that the peak heat release rate reduced to 201.8KW/m2 and the total heat release rate reduced to 60.7MJ/m2.In addition,the total smoke release quantity was reduced by 47.9% compared with the pure ABS.All the results showed that there was a synergistic effect between WMRP and intumescent flame retardant which can improve the flame retardant efficiency of retardant.

关 键 词：ABS复合材料 白度化包裹红磷 膨胀阻燃剂 热稳定性 阻燃 

分 类 号：TQ314.248[化学工程—高聚物工业]