Effects of Polyurethane Substrate Pre-Treatment on Pulsed Cathodic Arc Deposited DLC Films

被引:4
|
作者
Zhang, Lijie [1 ,2 ]
Zong, Xuemei [1 ,3 ]
Yuan, Xiaoming [1 ,2 ,3 ]
Xing, Xiaolei [1 ]
机构
[1] Yanshan Univ, Hebei Prov Key Lab Heavy Machinery Fluid Power Tr, Qinhuangdao 066004, Hebei, Peoples R China
[2] Zhejiang Univ, State Key Lab Fluid Power & Mechatron Syst, Hangzhou 310058, Peoples R China
[3] Jiangsu Xuzhou Construct Machinery Res Inst Co Lt, Xuzhou 221004, Jiangsu, Peoples R China
关键词
DLC; polyurethane rubber; wear resistance; tetrachloroethylene; CARBON-FILMS; COATINGS; RUBBER; ADHESION; BEHAVIOR;
D O I
10.3390/coatings10060545
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Diamond-like carbon (DLC) films were deposited by means of pulsed cathodic arc deposition on pretreated polyurethane (PU) rubber substrates. Tetrachloroethylene was chosen as a dissolution method to remove the plasticizer added in the PU substrates. Scanning electron microscopy (SEM) and Raman spectroscopy were applied to observe and characterize the surface morphologies and compositions of the deposited films, respectively. The tribological behaviours of uncoated and coated rubbers were investigated with ring-on-disc tribo experiments under dry sliding conditions. The coefficients of friction (COFs) of the coated rubbers were 40% lower than those of uncoated rubber and the COFs of different samples decreased first and then increased slightly with the increase in temperature and the time of ultrasonic treatment under dry friction. Based on the above experiments, ultrasonic treatment with tetrachloroethylene contributes to the increase in the wear resistance of DLC films deposited on PU rubbers. The most suitable temperature and time of ultrasonic treatment with tetrachloroethylene is 50 degrees C for 15 min.
引用
收藏
页数:10
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