氨基化埃洛石纳米管对固体环氧树脂的增强增韧及阻燃作用  

Reinforcement, toughening and flame retardant effect of aminated halloysite nanotubes on solid epoxy resin

作　　者：江涛[1] 吉尔么惹歪 何林铂 谢嘉楠 戴进峰 傅深渊[1,2] Jiang Tao;Ji Ermerewai;He Linbo;Xie Jianan;Dai Jinfeng;Fu Shenyuan(College of Chemistry and Materials Engineering,Zhejiang A&F University,Hangzhou 311300;The National Engineering Research Center for the Comprehensive Utilization of Wood Resources,Zhejiang A&F University,Hangzhou 311300)

机构地区：[1]浙江农林大学化学与材料工程学院,杭州311300 [2]浙江农林大学国家木质资源综合利用工程技术研究中心,杭州311300

出　　处：《化工新型材料》2023年第2期108-113,共6页New Chemical Materials

基　　金：国家自然基金青年项目(51903222);浙江农林大学人才引进启动基金资助项目(2017FR017);浙江农林大学大学生科研训练项目(2020KX0080,2020KX0077);2021年浙江省大学生科技创新活动计划(2021R412012)。

摘　　要：通过化学接枝法获得了氨基化埃洛石纳米管(N-HNTs),与聚磷酸铵(APP)复配制备了N-HNTs-APP/EP固体环氧树脂复合材料,并对复合材料的固化行为、力学性能、热降解行为、阻燃性能、残炭形貌进行研究。结果表明,添加5%N-HNTs-APP不仅促进了EP的固化反应,而且复合材料的力学性能得到全面提升,其中冲击强度和断裂伸长率较纯EP分别提高了63.9%和28.2%。同时,5%N-HNTs-APP/EP复合材料的极限氧指数(LOI)达31.7%,通过UL-94 V0级别,其热释放速率峰值(pHRR)、总热释放速率(THR)、烟释放速率峰值(SPR)和生烟总量(TSP)较纯EP均大幅下降。Aminated halloysite nanotubes(N-HNTs) were fabricated by chemical grafting, and then, by compounding with ammonium polyphosphate(APP),solid epoxy resin composites(N-HNTs-APP/EP) were further prepared.The curing behavior, mechanical properties, thermal degradation behavior, flame retardancy and morphology of char residue of the EP composites were thoroughly investigated.The results showed that the addition of 5% N-HNTs-APP not only promoted the curing reaction of EP,but also comprehensively improved the mechanical properties of the composites, among which the impact strength and the elongation at break increased by 63.9% and 28.2% compared with pure EP,respectively.Additionally, 5% N-HNTs-APP/EP composite achieved UL-94 V0 level with the LOI value of 31.7%.Moreover, compared with pure EP,the peak heat release rate(pHRR),total heat release rate(THR),peak smoke release rate(SPR) and total smoke production(TSP) of 5% N-HNTs-APP/EP composite were significantly reduced.

关 键 词：埃洛石纳米管 环氧树脂 阻燃性能 增强 增韧 

分 类 号：TQ317[化学工程—高聚物工业]