离子液体改性石墨烯的制备及其对ABS复合材料导热性的影响  

Preparation of ionic liquid modified graphene and its effect on thermal conductivity of ABS composites

作　　者：王一杰 张金镯 龙佳朋 梁兵 WANG Yijie;ZHANG Jinzhuo;LONG Jiapeng;LIANG Bing(School of Materials Science and Enginerring,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China)

机构地区：[1]沈阳化工大学材料科学与工程学院,辽宁沈阳110142

出　　处：《精细化工》2024年第4期778-786,共9页Fine Chemicals

基　　金：辽宁特聘教授基金项目(512003007021)。

摘　　要：通过绿色直接机械球磨法,将石墨粉(G粉)与1-己基-3-氨乙基咪唑四氟硼酸盐离子液体([HAIM]BF4)相结合,制备了离子液体功能改性石墨烯(G@ILs)。将G@ILs和丙烯腈-丁二烯-苯乙烯共聚物(ABS)采用熔融共混法制备了G@ILs/ABS复合材料。通过FTIR、XPS、XRD、拉曼光谱、SEM、TEM和EDS对G@ILs进行表征,对ABS复合材料的性能和形貌进行了测试和表征。结果表明,[HAIM]BF4通过阳离子-π相互作用对石墨烯进行了有效修饰,保持了石墨烯的结构完整性。G@ILs的引入使G@ILs/ABS复合材料的力学性能得到了显著改善。G@ILs质量分数为1.0%时,制备的G@ILs/ABS复合材料(记为1.0%G@ILs/ABS,下同)的拉伸强度和弯曲模量为42.4 MPa和2145.1 MPa,分别比ABS提高了8.36%和12.76%。此外,1.0%G@ILs/ABS的导热系数为0.249W/(m·K),比ABS提高了21.5%。Ionic liquid modified graphene(G@ILs),prepared from graphite powder(G powder)and 1-hexyl-3-aminoethylimidazolium tetrafluoroborate ionic liquid[HAIM]BF4 via a green ball milling method,was blended with acrylonitrile-butadiene-styrene copolymer(ABS)by melt blending method to synthesize G@ILs/ABS composites.The G@ILs was characterized by FTIR,XPS,XRD,Raman spectroscopy,SEM,TEM and EDS.the properties and morphology of ABS composites were tested and characterized.The results showed that[HAIM]BF4 effectively modified graphene through cation-πinteractions and maintained the structural integrity of graphene.The G@ILs/ABS composites exhibited considerable improvement in mechanical properties due to the introduction of [e-mail] the mass fraction of G@ILs was 1.0%,the tensile strength and bending modulus of G@ILs/ABS composites(named 1.0%G@ILs/ABS)were 42.4 MPa and 2145.1 MPa,8.36%and 12.76%higher than those of ABS.In addition,the thermal conductivity of 1.0%G@ILs/ABS was 0.249 W/(m·K),which was 21.5%higher than that of ABS.

关 键 词：离子液体 石墨烯 ABS 复合材料 导热性 功能材料 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]