通过在可膨胀石墨(EG)表面原位引发三聚氰胺甲醛树脂(MF)缩聚反应成功制备出一种新型核-壳结构阻燃粒子.红外光谱(FT-IR)及扫描电镜(SEM)分析表明,MF在EG表面形成了完善的包覆结构,有效提高了EG的阻燃性能.10％质量分数核-壳结构粒子的引入即能显著提高硬质聚氨酯泡沫的阻燃性能并保持良好的力学性能和绝热性能；完善的MF包覆壳层对EG阻燃性能的提高、与基体界面的改善作用以及不利导热作用的有效屏蔽是该综合性能提高的主要原因.
参考文献
| [1] | D.K. Chattopadhyay;Dean C. Webster .Thermal stability and flame retardancy of polyurethanes[J].Progress in Polymer Science,2009(10):1068-1133. |
| [2] | M. Modesti;A. Lorenzetti;F. Simioni .Expandable graphite as an intumescent flame retardant in polyisocyanurate-polyurethane foams[J].Polymer Degradation and Stability,2002(2):195-202. |
| [3] | Shi L;Li ZM;Xie BH;Wang JH;Tian CR;Yang MB .Flame retardancy of different-sized expandable graphite particles for high-density rigid polyurethane foams[J].Polymer international,2006(8):862-871. |
| [4] | Ye, L;Meng, XY;Ji, X;Li, ZM;Tang, JH .Synthesis and characterization of expandable graphite-poly(methyl methacrylate) composite particles and their application to flame retardation of rigid polyurethane foams[J].Polymer Degradation and Stability,2009(6):971-979. |
| [5] | Lei Shi;Zhong-Ming Li;Wei Yang .Properties and microstructure of expandable graphite particles pulverized with an ultra-high-speed mixer[J].Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems,2006(3):178-184. |
| [6] | Yan Chao Yuan;Min Zhi Rong;Ming Qiu Zhang .Preparation and characterization of microencapsulated polythiol[J].Polymer: The International Journal for the Science and Technology of Polymers,2008(10):2531-2541. |
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