石墨烯/黑磷纳米复合粒子对环氧树脂阻燃与热稳定性能的影响  

Effects of Graphene/Black Phosphorus Nanocomposites on Flame Retardancy and Thermal Stability of Epoxy Resin

作　　者：林绍铃 黄初 赵小敏 陈国华[2] LIN Shaoling;HUANG Chu;ZHAO Xiaomin;CHEN Guohua(College of Chemical Engineering,Huaqiao University,Xiamen 361021,China;College of Materials Science and Engineering,Huaqiao University,Xiamen 361021,China)

机构地区：[1]华侨大学化工学院,厦门361021 [2]华侨大学材料科学与工程学院,厦门361021

出　　处：《材料导报》2021年第10期10184-10188,共5页Materials Reports

基　　金：福建省科技计划项目(2018H6012,2017H2001);福建省发改委石墨烯技术研发和产业发展专项项目;福建省运动鞋面料重点实验室(福建华峰新材料有限公司)开放基金项目资助;华侨大学研究生科研创新基金资助项目。

摘　　要：近年来,具有蜂窝状褶皱片层结构的黑磷(BP)在阻燃高分子复合材料领域展现出潜在的应用前景。本工作采用高能球磨方法制备出石墨烯/黑磷纳米复合粒子(G-BP),以拉曼光谱与X射线衍射表征其结构,并利用极限氧指数(LOI)、UL 94垂直燃烧测试和热重分析探究G-BP含量对环氧树脂基体热稳定性与阻燃性能的影响。结果表明:在环氧树脂中添加2%G-BP,其高温残炭量从14.8%提高至25.3%,LOI提高至25.5%,且UL 94垂直燃烧等级达到V1级;G-BP添加量为5%时,环氧树脂的LOI达27.5%,且UL 94垂直燃烧等级通过V0级。G-BP通过气固双相阻燃协同机理,明显改善了环氧树脂的成炭性与阻燃性。In recent years,black phosphorus(BP)with honeycomb pleated sheet structure has shown potential applications in the field of flame-retar-dant polymer composite materials.In this work,G-BP was prepared by high-energy ball-milling method,and the structure was characterized by Raman spectroscopy and X-ray diffraction.The effect of graphene/black phosphorus nanocomposite particles(G-BP)on the flame retardancy and thermal stability of epoxy resin was investigated by limiting oxygen index(LOI)and UL 94 vertical burning test.Thermal stability was studied by thermogravimetric analysis(TGA).The results showed that when 2%G-BP was added to epoxy resin,the carbon residue increased from 14.8%to 25.3%at high temperature,the LOI increased to 25.5%,and V1 level was achieved.When the addition amount was 5%,the LOI of EP/G-BP reached 27.5%,and passed the V0 level.The improvement of flame retardancy is owing to the synergistic effect of the gas-phase and condensed-phase flame retardant actions of G-BP.

关 键 词：环氧树脂 石墨烯/黑磷纳米复合粒子 阻燃 热稳定性 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]