纯钛基材上环氧基涂层界面结合强度的研究  

Interfacial bonding strength of epoxy coating on pure titanium substrate

作　　者：庞迎春[1] 陶杰[1] 张舒[1] 王玲[1] 陶海军[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,江苏南京210016

出　　处：《兵器材料科学与工程》2007年第1期59-62,共4页Ordnance Material Science and Engineering

基　　金：航空科学基金资助(04H52059)

摘　　要：为了提高钛基体与Fe2O3(吸波剂)/环氧涂层的结合强度(即涂层的附着力),在经过恒压阳极氧化处理的钛基体上浸涂Fe2O3/环氧树脂涂料。研究了试验参数对涂层界面结合强度的影响以及阳极氧化状态参数对钛基体表面形貌的影响;并对阳极氧化多孔膜进行扫描电子显微镜(SEM)分析,对不同处理状态基体上的涂层进行界面结合强度测试。结果表明:经过有效阳极氧化处理的钛基体,表面呈现不同程度的多孔形貌;在阳极氧化多孔膜表面涂敷环氧涂料,涂层与基体的结合强度比涂层与未经阳极氧化处理的基板的结合强度有所提高;随电压的升高,涂层的结合强度先增大后减小,随时间的变化无明显变化。In order to increase the interracial bonding strength between pure titanium substrate and epoxy coating filled with the absorbent Fe2O3, titanium substrates with the constant voltage anodic oxidation were coated by epoxy resin filled with Fe2O3 particles. The effect of the experimental parameters on the interfacial bonding strength was investigated, as well as the influences of the anodic oxidation state on the titanium substrate surface appearance. After anodic oxidation, TiO2 porous film covered on the substrate surface was analyzed with the aid of SEM. The interfacial bonding strength of the coatings on titanium substrates with different processing conditions was obtained by means of tensile-shear method. The results indicated that, the surface of the substrate with the effective anodic oxidation presented the varying degree of porous appearance; the interfacial bonding strength of the coating on the substrate with anodic oxidation increased compared with that without anodic oxidation. Moreover, it was also found that the bonding strength of coating first increased then decreased with increasing voltage, and hardly altered with time.

关 键 词：阳极氧化 环氧涂层 钛板TA1 界面结合强度 

分 类 号：TQ153.6[化学工程—电化学工业]