摘要
采用两步水热法制备了具有核壳结构的二硫化钼/硫化铜(MoS_(2)/CuS)纳米杂化材料,然后将其作为填料与环氧树脂复合,制备了环氧树脂/二硫化钼/硫化铜(EP/MoS_(2)/CuS)复合材料。通过X射线衍射(XRD)、扫描电镜(SEM)和能谱(EDS)分析了产物的化学组成和形貌特征,并利用多功能摩擦磨损试验机对EP复合涂层的摩擦磨损性能进行了探究。结果表明:MoS_(2)纳米片均匀地包覆在CuS表面,形成了以MoS_(2)为壳,CuS为核的杂化体。单体MoS_(2)、CuS和杂化材料MoS_(2)/CuS均能改善EP的摩擦学性能,其中杂化体MoS_(2)/CuS的改善效果最好,当MoS_(2)/CuS质量分数为1.25%时,EP/MoS_(2)/CuS复合材料的摩擦系数和磨损率较纯EP分别降低了36.8%和35.7%。
The molybdenum disulfide/copper sulphide(MoS_(2)/CuS)nanohybrid materials with core-shell structure were synthesized by two-step hydrothermal method,and then the MoS_(2)/CuS hybrid materials were used as fillers to composite with epoxy resin(EP)to prepare the EP/MoS_(2)/CuS composites.The morphology and chemical composition of the prepared products were characterized by XRD,SEM and EDS,and the friction and wear performance of EP composite coatings was investigated using a multifunctional friction and wear tester.The results showed that the MoS_(2) nanosheets were uniformly coated on the CuS surface,forming a hybrid with MoS_(2) as the shell and CuS as the core.The monomer MoS_(2),CuS and the hybrid MoS_(2)/CuS could improve the tribological properties of EP,among which the MoS_(2)/CuS hybrid presented the optimal enhancement effect.Compared with pure EP,when the mass fraction of MoS_(2)/CuS hybrid was 1.25wt%,the friction coefficient and wear rate of EP/MoS_(2)/CuS composites were reduced by 36.8%and 35.7%,respectively.
作者
栗洋
牛永平
杨康
杜三明
杨璐璐
Li Yang;Niu Yongping;Yang Kang;Du Sanming;Yang Lulu(National United Engineering Laboratory for Advanced Bearing Tribology,Henan University of Science and Technology,Luoyang 471023;School of Chemical Engineering and Pharmacy,Henan University of Science and Technology,Luoyang 471023)
出处
《化工新型材料》
CAS
CSCD
北大核心
2023年第12期133-137,142,共6页
New Chemical Materials
基金
国家自然科学基金(51175149)
清华大学摩擦学国家重点实验室开放基金项目(SKLTKF15B02)。
关键词
环氧树脂
水热反应
二硫化钼
硫化铜
摩擦磨损
epoxy resin
hydrothermal method
molybdenum disulfide
copper sulfide
friction and wear
