钛酸铁钠晶须增强FEVE防腐耐磨复合涂层的制备与性能  

Preparation and properties of iron sodium titanate whisker reinforced FEVE fluorocarbon composite coating

作　　者：张洋 胡亚龙 李畅 沈丽明 暴宁钟 ZHANG Yang;HU Yalong;LI Chang;SHEN Liming;BAO Ningzhong(State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China)

机构地区：[1]南京工业大学化工学院材料化学工程国家重点实验室,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》2018年第5期20-26,共7页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：国家自然科学基金(51425202);江苏省自然科学基金(BK20160093);江苏高校品牌专业建设工程

摘　　要：以三氟氯乙烯/四氟乙烯-烷基乙烯基醚/酯(FEVE)为基料,钛酸铁钠(NaFeTiO_4)晶须为主要减摩耐磨填料,通过液相共混法制备兼具减摩耐磨防腐的无机-有机氟碳复合涂层材料,研究填料在树脂基体中的分散性及填料对涂层减摩耐磨性、防腐蚀性的影响。通过X线衍射仪(XRD)和扫描电子显微镜(SEM)对钛酸铁钠晶须晶型、形貌及晶须在复合涂层中的分散性能进行表征。采用摩擦磨损试验机对涂层摩擦磨损性能进行评价,通过电化学交流阻抗对涂层防腐蚀性能进行评价。结果表明:钛酸铁钠晶须能够均匀稳定地分散在涂层基体中,当钛酸铁钠晶须的添加量为FEVE树脂质量的5%时,涂层的摩擦因数由0.854降低至0.709,体积磨损量由0.17 mm3降低至0.017 mm^3,耐磨性能提升近10倍,同时复合涂层具有优异的防腐蚀性能。An inorganic-organic composite of iron sodium titanate whisker （NaFeTiO 4 ） reinforced fluorocarbon composite coating with improved performance in anti-friction,anti-wear,and anti-corrosion was prepared through liquid blending method,using fluorinated ethylene/vinyl monomer copolymerized fluorocarbon resin （FEVE） as the base material and NaFeTiO 4 whiskers as the main anti-friction and anti-wear filler.The crystal structure,morphology,and dispersion of the FEVE composite coating of NaFeTiO 4 whiskers were characterized by X-ray diffractometer （XRD） and scanning electron microscope （SEM）.The friction,wear bearing,and anti-corrosion performance of the composite coating were evaluated by friction and wear tester and electrochemical impedance.Results showed that NaFeTiO 4 whiskers could uniformly disperse in the FEVE matrix without precipitation.When the content of NaFeTiO 4 was 5%,the coefficient of friction and wear volume of composite coating reduced from 0.854 and 0.17 mm 3 to 0.709 and 0.017 mm 3 ,respectively.The wear resistance performance was increased by 10 times.The coating showed not only the lowest anti-friction coefficient and wear volume,but also excellent anti-corrosion performance.

关 键 词：FEVE氟碳涂料 钛酸铁钠晶须 减摩耐磨 防腐蚀 

分 类 号：TQ637.2[化学工程—精细化工]