生物基阻燃剂与三聚氰胺氰尿酸盐在低密度聚乙烯中的协同阻燃性能研究  

Study on Synergistic Flame Retardancy of Bio-based Flame Retardant and Melamine Cyanurate in Low Density Polyethylene

作　　者：顾陆於 李建喜[2] GU Lu-yu;LI Jian-xi(Shanghai Changyuan Electronics Materials Co.,Ltd.,Shanghai 201802,China;Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China)

机构地区：[1]上海长园电子材料有限公司,上海201802 [2]中国科学院上海应用物理研究所,上海201800

出　　处：《塑料科技》2023年第3期13-17,共5页Plastics Science and Technology

摘　　要：为了探究新型生物基阻燃剂的适用范围和协同阻燃效果,利用氢氧化镁(MH)和植酸(PA)反应制备新型生物基阻燃剂(MPA)。将MPA与三聚氰胺氰尿酸盐(MCA)加入低密度聚乙烯(LDPE)中制备LDPE阻燃复合材料,并测试复合材料的阻燃性能和热稳定性。结果表明:当MPA加入量为40 g,MCA加入量为20 g,LDPE-3复合材料的热释放速率峰值降至702.6 kW/m^(2),CO和CO_(2)的释放量也受到有效抑制,残留物含量大幅提升,从0.2%提升至14.2%。MCA的加入可以有效提升LDPE/MPA复合材料的热稳定性,抑制LDPE/MPA复合材料的早期分解,使LDPE-3的起始热分解温度(T5%)从273.2℃提升至329.8℃。MPA与MCA同时在LDPE使用时能够产生良好协同阻燃作用,有效提升LDPE复合材料的阻燃性能以及热稳定性。In order to explore the application scope and synergistic flame retardant effect of new bio-based flame retardants,a new bio-based flame retardant(MPA)was prepared by the reaction of magnesium hydroxide(MH)and phytic acid(PA).The low density polyethylene(LDPE)flame retardant composites were prepared by adding MPA and melamine cyanurate(MCA)into LDPE,and the flame retardancy and thermal stability of the composites were tested.The results show that when the amount of MPA is 40 g and the amount of MCA is 20 g,the peak heat release rate of LDPE-3 composite decreases to 702.6 kW/m^(2),the release of CO and CO_(2)is also effectively inhibited,and the residue content increases significantly from 0.2%to 14.2%.The addition of MCA can effectively improve the thermal stability of LDPE/MPA composite,inhibit the early decomposition of LDPE/MPA composite,and increase the initial thermal decomposition temperature(T5%)of LDPE-3 from 273.2℃to 329.8℃.MPA and MCA can produce good synergistic flame retardant effect when used in LDPE at the same time,which can effectively improve the flame retardant properties and thermal stability of LDPE composites.

关 键 词：低密度聚乙烯 生物基阻燃剂 热稳定性 三聚氰胺氰尿酸盐 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ325.1[化学工程—合成树脂塑料工业]