离子液体改性石墨烯/丁腈复合材料的摩擦性能  

Mechanical and Tribological Properties of Graphene/Nitrile Composites

作　　者：程晓林 王源升[1] 王轩[1] 刘吟松 杨雪[2,3] Xiaolin Cheng;YuanshengWang;XuanWang;Yinsong Liu;Xue Yang(Department of Chemistry and Materials,Naval University of Engineering,Wuhan 430033 China;Institute of Vibration and Noise,Naval University of Engineering,Wuhan 430033,China;Key Laboratory of Ship Vibration and Noise,Wuhan 430033,China)

机构地区：[1]海军工程大学化学与材料教研室,湖北武汉430033 [2]海军工程大学振动与噪声研究所,湖北武汉430033 [3]船舶振动与噪声重点实验室,湖北武汉430033

出　　处：《高分子材料科学与工程》2023年第4期70-77,共8页Polymer Materials Science & Engineering

摘　　要：为探究不同含量1-羟乙基-3-甲基咪唑四氟硼酸盐离子液体(IL)改性石墨烯(GR)后对石墨烯/丁腈复合材料摩擦性能的影响,文中设置了3种GR与IL的质量比,通过热重分析、扫描电镜表征手段对比分析了GR与IL不同质量比制备的改性石墨烯(GR-IL)的改性效果,并研究了不同石墨烯添加量对复合材料性能的影响。结果表明,GR与IL的质量比为1:1和1:2的GR-IL可以降低复合材料的摩擦系数、磨损及振动加速度总级,在载荷0.25MPa、转速1000r/min下干磨2h后最低质量磨损率仅为0.175%;而当质量比为1:3时,则复合材料的摩擦性能降低;随着石墨烯含量的增加,石墨烯/丁腈复合材料的摩擦性能呈现先提高后降低的趋势。In order to investigate the effect of different contents of 1-hydroxyethyl-3-methylimidazolium tetrafluoroborate ionic liquid(IL)on the tribological properties of graphene/nitrile composites,three mass ratios of GR to IL were set.The modification effects of modified graphene(GR-IL)prepared at different mass ratios of GR and IL were analyzed by thermogravimetric analysis and scanning electron microscope characterization,and the effects of different amounts of graphene on the properties of the composites were studied.The results show that the GR-IL with a mass ratio of 1:1 and 1:2 can reduce the friction coefficient,wear and total vibration acceleration of the composites,and the minimum mass wear rate is only 0.175%after dry grinding for 2 h at a load of 0.25 MPa and a speed of 1000 r/min.When the mass ratio is 1:3,the tribological properties of the composites will be reduced.With the increase of graphene content,the tribological properties of graphene/nitrile composites increase first and then decrease.

关 键 词：丁腈橡胶 石墨烯 离子液体 

分 类 号：TB332[一般工业技术—材料科学与工程]