含磷阻燃剂DOPO-HQ的合成、表征及应用  

Synthesis,Characterization,and Application of Phosphorus-Containing Flame Retardant DOPO-HQ

作　　者：陈松[1,2] 黄胜超 田路 段家仙 CHEN Song;HUANG Shengchao;TIAN Lu;DUAN Jiaxian(Hubei Xingfa Chemicals Group Co.,Ltd.,Yichang 443711,China;Hubei Xingfa Phosphorus Chemical Research Institute Co.,Ltd.,Yichang 443007,China)

机构地区：[1]湖北兴发化工集团股份有限公司,湖北宜昌443711 [2]湖北省兴发磷化工研究院有限公司,湖北宜昌443007

出　　处：《化学与生物工程》2020年第2期28-31,41,共5页Chemistry & Bioengineering

基　　金：国家重点研发计划(2017YFB0309003)。

摘　　要：对含磷阻燃剂DOPO-HQ的合成条件进行了优化,通过1HNMR、FTIR及元素分析对合成的DOPO-HQ进行了表征,并以其作为阻燃剂,制备阻燃硬质聚氨酯泡沫(FRPUF),以研究其阻燃性能。结果表明,以四氯化碳为溶剂,在DOPO与对苯醌物质的量比为1.1∶1、反应温度为78℃、反应时间为14 h的最优条件下,成功合成了DOPO-HQ,该工艺操作简单、过程更安全、产品纯度高、收率高。DOPO-HQ的加入能显著提高硬质聚氨酯泡沫的阻燃性能,添加45份DOPO-HQ后,硬质聚氨酯泡沫的垂直燃烧等级可以达到V-0级,极限氧指数(LOI)达到27.0%,属难燃级别,其总热释放明显降低,表现出明显的气相阻燃机理,具有一定应用价值。We optimized the synthetic conditions of phosphorus-containing flame retardant DOPO-HQ,and characterized the structure by 1HNMR,FTIR,and element analysis.Moreover,we prepared flame retardant rigid polyurethane foam(FRPUF)by using DOPO-HQ as the flame retardant,and evaluated the flame retardant property.The results show DOPO-HQ is successfully synthesized by using carbon tetrachloride as a solvent under the optimal conditions as follows:the molar ratio of DOPO to p-benzoquinone of 1.1∶1,the reaction temperature of 78℃,and the reaction time of 14 h.The process has the advantages of simple operation,safer process,high purity,and high yield.The addition of DOPO-HQ can significantly improve the flame retardant property of rigid polyurethane foam.After adding 45 phr DOPO-HQ,the vertical combustion level of FRPUF-45 can reach V-0,and the LOI value can reach 27.0%,which belongs to the flame-retardant level.In addition,the total heat release of FRPUF-45 obviously reduces,which shows obvious gas-phase flame retardant mechanism,so FRPUF-45 has certain application value.

关 键 词：硬质聚氨酯泡沫(RPUF) DOPO-HQ 阻燃性能 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]