MDNs/FGNs协效阻燃环氧树脂复合材料的热降解动力学研究  

Study on Thermal Degradation Kinetics of MDNs/FGNs Synergistic Flame Retardant Epoxy Resin Composites

作　　者：吴正环 宋高杰[1,2,3] 陈卓 王佳玲 王权 刘淑意 郑佳玉[2,3] WU Zhenghuan;SONG Gaojie;CHEN Zhuo;WANG Jialing;WANG Quan;LIU Shuyi;ZHENG Jiayu(National Mold Product Quality Supervision&Inspection Center,Dongguan 523841,China;School of Mechanical Engineering,Tianjin University of Technology and Education,Tianjin 300222,China;Tianjin Key Laboratory of Automobile Lightweight Injection Mold,Tianjin 300222,China;Ocean College of Shanwei Vocational and Technical College,Shanwei 516600,China)

机构地区：[1]国家模具产品质量检验检测中心,广东东莞523841 [2]天津职业技术师范大学机械工程学院,天津300222 [3]天津市汽车轻量化注塑模具重点实验室,天津300222 [4]汕尾职业技术学院海洋学院,广东汕尾516600

出　　处：《塑料科技》2025年第2期1-7,共7页Plastics Science and Technology

基　　金：广东省基础与应用基础研究基金联合基金(2021A1515111010);东莞市社会发展科技项目(20231800939882);天津市科技计划项目(24ZYJDSS00030、22YFYSHZ00190)。

摘　　要：采用热重分析仪研究环氧树脂(EP)、含膨胀阻燃剂的环氧树脂(EP/IFR)以及添加纳米层状二硫化钼(MDNs)和鳞片石墨纳米片(FGNs)的环氧树脂/膨胀阻燃剂复合材料(EP/IFR/MDNs/FGNs)的热降解过程。比较IFR以及MDNs/FGNs与IFR的协效作用对EP热稳定性及其热降解过程的影响。使用Starink法、Broido法和Phadnis法计算3种材料的热降解动力学活化能。结果表明:使用MDNs/FGNs与IFR协效阻燃可以显著提高材料的热稳定性,材料在800℃的残炭率显著提升。Starink法得到的活化能分别为166.03、163.68、158.02 k J/mol;Broido法得到的活化能为93.37、58.41、56.81 k J/mol;Phadnis法得到的活化能为59.71、36.58、35.52 k J/mol。通过Phadnis法确定了反应的机理函数。A thermogravimetric analyzer was used to study the thermal degradation processes of epoxy resin(EP),epoxy resin with intumescent flame retardant(EP/IFR),and epoxy resin with intumescent flame retardant combined with nanolayer molybdenum disulfide and flake graphite nanoplatelets(EP/IFR/MDNs/FGNs)composites.The effects of IFR and the synergistic action of MDNs/FGNs with IFR on the thermal stability and thermal degradation processes of EP were compared.The thermal degradation kinetics activation energies of the three materials were calculated using the Starink,Broido and Phadnis methods.The results showed that using MDNs/FGNs in conjunction with IFR enhanced the thermal stability of the materials,and significantly increased the char yield at 800℃.The activation energies calculated using the Starink method were 166.03,163.68,158.02 kJ/mol,the Broido method resulted in activation energies of 93.37,58.41,56.81 kJ/mol,and the activation energies obtained by the Phadnis method were 59.71,36.58,35.52 kJ/mol.The reaction mechanism functions were ultimately determined using the Phadnis method.

关 键 词：环氧树脂 协效阻燃 机理函数 热降解动力学 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]