离子液体/乙烯-醋酸乙烯共聚物复合材料的制备与性能

doi:10.11944/j.issn.1000-0518.2015.10.150095

摘要/Abstract

摘要：

分别将离子液体三正丁基甲铵(双三氟甲磺酰)亚胺盐([TBMA][NTf₂])和1-乙基-3-甲基咪唑四氟硼酸盐([EMIM][BF₄])与乙烯-醋酸乙烯共聚物弹性体(EVM)熔融共混制备复合材料,研究了离子液体与EVM的相容性及抗静电性能。样品宏观透明性和SEM测试结果显示,[TBMA][NTf₂]与EVM具有较好的相容性,相应的EVM/[TBMA][NTf₂]复合材料的抗静电效果更好;热重分析(TGA)结果表明,[TBMA][NTf₂]促进EVM热解,而[EMIM][BF₄]对EVM的热稳定影响较小。室温下在EVM中填加[TBMA][NTf₂]的共混物表现出较好的柔性,当[TBMA][NTf₂]质量分数为20%时,EVM/[TBMA][NTf₂]复合材料的模量为0.58 MPa,断裂伸长率可达到2997%。

关键词: 离子液体, 乙烯-醋酸乙烯共聚弹性体, 相容性, 热稳定性, 抗静电性

Abstract:

Two binary blends of tributylmethylammoniu bis(trifluoromethanesulfonyl)imide([TBMA][NTf₂]) and ethylene-vinyl acetate copolymer(EVM), 1-butyl-3-methyl-imidazolium tetrafluoroborate([EMIM][BF₄]) and EVM were prepared by melt blending. The blend of EVM and [TBMA][NTf₂] is fully miscible and shows better anti-static electricity, while the blend of EVM and [BMIMBF₄] is immiscible. In addition, TGA analysis indicated that [TBMA][NTf₂] promoted EVM pyrogenation, while [EMIM][BF₄] had little influence on the thermal stability of EVM. EVM filled with [TBMA][NTf₂] is flexible at room temperature. The modulus of EVM/[TBMA][NTf₂] composite is 0.58 MPa and the elongation at break is as high as 2997% with 20% mass fraction loading of ionic liquids.

Key words: ionic liquids, ethylene-vinyl acetate copolymer elastomer, compatibility, thermal stability, anti-static electricity

金明月,富露祥,由吉春,李勇进. 离子液体/乙烯-醋酸乙烯共聚物复合材料的制备与性能[J]. 应用化学, 2015, 32(10): 1146-1152.

JIN Mingyue,FU Luxiang,YOU Jichun,Li Yongjin. Preparation and Properties of Ionic Liquid and Ethylene-Vinyl Acetate Copolymer Composites[J]. Chinese Journal of Applied Chemistry, 2015, 32(10): 1146-1152.

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