GO超声诱导对VE/UHMWPE复合材料表面性能和力学性能的影响  

Effect of GO Ultrasonic Induction on Surface Properties and Mechanical Properties of VE/UHMWPE Composite

作　　者：李银标 雅子君 LI Yinbiao;YA Zijun(School of Mechanical Technology,Wuxi Institute of Technology,Wuxi,Jiangsu 214121,China;Wuxi College of Mechanical and Electrical Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China)

机构地区：[1]无锡职业技术学院机械技术学院,江苏无锡214121 [2]江苏大学,无锡机电学院,江苏镇江212013

出　　处：《塑料》2023年第3期53-56,61,共5页Plastics

基　　金：江苏省高等学校自然科学研究面上项目(20KJB520022);江苏省产学研合作项目(BY2021125)。

摘　　要：利用超声诱导的方式将氧化石墨烯(GO)渗透至维生素-E/超高分子量聚乙烯(VE/UHMWPE)复合材料表面,提高复合材料的表面性能和力学性能。采用傅里叶红外光谱仪和光学接触角测量仪表征测试了复合材料的分子结构和接触角,分析了吸水率的变化,利用摩擦磨损实验机测试了复合材料的球压痕硬度和抗划痕性能。结果表明,经GO超声诱导后,在复合材料的红外光谱观测到含氧官能团的存在,这表明,GO广泛存在于复合材料表面;与添加GO相比,GO超声诱导显著提高了复合材料的润湿性,接触角降低了5.0%,吸水率增加了14.3%;GO超声诱导后,复合材料的球压痕硬度和划痕系数分别提高了6.6%和5.5%,划痕深度降低了17.3%。GO在复合材料表面的广泛存在、GO表面的含氧官能团及GO较好的力学性能是复合材料性能提升的主要原因。Graphene oxide(GO)was creatively infiltrated into the surface of vitamin-E/Ultrahigh molecular weight polyethylene(VE/UHMWPE)composite by ultrasonic induction to improve the surface and mechanical properties of the composite.The molecular structure and contact angle of the composite were measured by Fourier infrared spectrometer and optical contact angle measuring instrument,and the changes of water absorption were analyzed.The ball indentation hardness and scratch resistance were tested by friction and wear tester.The results showed that after ultrasonic induction in CO solution,the existence of oxygen-containing functional groups were observed in the FTIR,indicating that CO generally exists on the surface of the composite.Compared with CO addition,the wettability of the composite was significantly improved by ultrasonic induction of CO,the contact angle was reduced by 5.0%and the water absorption was increased by 14.3%.After ultrasound induction of GO,the ball indentation hardness and scratch coefficient were increased by 6.6%and 5.5%respectively,and the scratch depth was reduced by 17.3%.The extensive existence of GO on the surface of composite,the oxygen-containing functional groups on the surface of GO and the excellent mechanical properties of GO itself are the main reasons for the improvement of the properties of composite.

关 键 词：GO 超声诱导 VE/UHMWPE 表面性能 力学性能 

分 类 号：TQ327.8[化学工程—合成树脂塑料工业]