新型阻燃环氧树脂复合材料的阻燃及燃烧特性  

Flame Retardancy and Burning Property of Novel Flame Retardant Epoxy Resin

作　　者：卢林刚[1] 周霞[2] 赵敏[3] 

机构地区：[1]中国人民武装警察部队学院科研部,河北廊坊065000 [2]中国人民武装警察部队学院研究生队,河北廊坊065000 [3]中国人民武装警察部队学院消防工程系,河北廊坊065000

出　　处：《塑料》2010年第5期21-23,27,共4页Plastics

基　　金："十一五"国家科技支撑计划项目(2006BAK06B06)

摘　　要：合成新型树状单分子磷-溴阻燃剂1,3,5-三(5,5-二溴甲基-1,3-二氧杂己内磷酰氧基)苯(FR),制备阻燃环氧树脂(EP)复合材料,利用极限氧指数(LOI)、垂直燃烧(UL-94)、锥形量热(CONE)等方法研究FR对环氧树脂的阻燃性能及燃烧特性的影响。结果表明:当FR添加量为30%时,阻燃EP的LOI达到29.4%,垂直燃烧通过V-0级,其av-HRR,av-EHC,av-SEA及av-MLR较未阻燃EP分别降低87.5%、92.8%、90.8%和58.5%,呈现出良好地阻燃效果和抑烟性能;扫描电子显微镜(SEM)观测发现:阻燃EP燃烧后形成了均匀闭孔炭层。Epoxy resin was flame retarded with the novel arborescent P-Br flame retardant 1,3,5-tri（5,5-dibromomethyl- 1,3 ,-dioxaphosphorinanyl-2-oxy）benzene. The effect of FR content on flame retarding properties such as limited oxygen index （LOI） and UL-94 was studied. The results demonstrated that the FR was effective on the flame retardancy of epoxy resin when the content of the fire retardant was 30 %. It was also found that the EP retarded by FR could still pass UL94 V-O rating,and its limited oxygen index value could reach 29.4 %. The cone experimental results showed that the av-HRR, av-EHC, av-SEA and av-MLR of the EP retarded lowed 87.5 % ,92.8 % ,90.8 % and 58.5 % respectively than those of pure EP. In addition, SEM observation revealed that the continuous,intact,strong and closed charred layers were formed in EP specimen filled with FR after burning.

关 键 词：阻燃剂 阻燃环氧树脂 阻燃性能 燃烧性能 1 3 5-三(5 5-二溴甲基-1 3-二氧杂己内磷酰氧基)苯 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]