摘要
以氯磷酸二苯酯、乙二胺等为原料,合成了膨胀型阻燃剂N,N′-双(二苯氧基磷酰基)-2,2′-乙二胺(PEA),水滑石(LDH)与PEA复配阻燃改性低密度聚乙烯(LDPE)/乙烯-醋酸乙烯共聚物(EVA)共混物。结果表明,当LDPE/EVA/LDH/PEA的质量比为80/20/20/10时,所得复合材料的阻燃等级可达到UL94 V-1级别,极限氧指数(LOI)达28.3%;LDH与PEA复配使用提高了LDPE/EVA共混物热分解残留率;LDH和PEA协同作用强化了炭层,提高了复合材料的阻燃性能。
An intumescent flame retardant N,N＇-di-（diphenyl phosphoroacyl） -2,2＇- ethylenediamine（PEA） was synthesized by diphenyl chlorophosphate and 1,2-ethylenediamine. The system of layered double hydroxide（LDH） and PEA was applied to modify LDPE/EVA blend.The results show that when the mass ratio of LDPE/EVA/LDH/ PEA is 80/20/20/10,the flame-retardance of the composite reaches UL94 V-1 and its LOI is 28.3%.The residual rate of thermal decomposition of LDPE/EVA blend is improved by the combination effect of LDH and PEA.The char is enhanced by the combination effect of LDH and PEA,which improves the flame retardant properties of the composite.
出处
《现代塑料加工应用》
CAS
北大核心
2011年第5期5-8,共4页
Modern Plastics Processing and Applications
基金
浙江省大学生科技创新活动计划(新苗人才计划)(2010R428016)项目
浙江省自然科学基金(Y4110026)项目资助
