离子液体掺杂石墨烯/环氧复合材料的研究
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摘要
以N-甲基咪唑、氯代正丁烷及氟硼酸钠为原料制备了丁烷离子液体([BMIm]BF4)。利用离子液体掺杂石墨烯,制备了环氧复合材料(ILs-GNs/EP)。采用红外光谱(FT-IR)、透射电镜(TEM)、扫描电镜(SEM)、热重分析(TGA)及动态力学分析仪(DMA)对复合材料的性能进行了表征。结果表明,加入质量分数0.2%的ILs-GNs可使复合材料的冲击强度由129 kJ/m2提高到227 k J/m2,拉伸强度和弯曲强度也有大幅度的提高。热分解温度提高25～35℃左右,ILs-GNs对环氧树脂有明显的增韧效果。
The butane ionic liquid([BMIm]BF4)was prepared by using N-methyl imidazole,chlorobutane and sodium fluoroborate as raw materials. Then the prepared ionic liquid was doped with graphene to prepare epoxy composites(ILs-GNs/EP).The properties of the composites were characterized by FT-IR,TEM,SEM,TGA and DMA. The results showed that the impact strength of the composites with 0.2% of ILs-GNs was increased from 129 kJ/m2 to 227 kJ/m2. The tensile strength and flexural strength were also increased significantly. The thermal decomposition temperature was increased by 25～35 ℃.The ILs-GNs had obvious toughening effect on the epoxy resin.
The butane ionic liquid([BMIm]BF4)was prepared by using N-methyl imidazole,chlorobutane and sodium fluoroborate as raw materials. Then the prepared ionic liquid was doped with graphene to prepare epoxy composites(ILs-GNs/EP).The properties of the composites were characterized by FT-IR,TEM,SEM,TGA and DMA. The results showed that the impact strength of the composites with 0.2% of ILs-GNs was increased from 129 kJ/m2 to 227 kJ/m2. The tensile strength and flexural strength were also increased significantly. The thermal decomposition temperature was increased by 25～35 ℃.The ILs-GNs had obvious toughening effect on the epoxy resin.
引文
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[8]Khare V,Pham M Q,Kumari N,et al.Graphene-ionic liquid based hybrid nanomaterials as novel lubricant for low friction and wear[J].ACS Applied Materials&Interfaces,2013,5(10):4063-4075.
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