摘要
为了探究Ni-P过渡层厚度对不锈钢表面制备Ni-P-PTFE涂层的影响。采用电镀结合化学镀的方法,在不锈钢表面制备了Ni/Ni-P/Ni-P-PTFE三层结构梯度涂层。通过扫描电子显微镜(SEM)、X射线衍射仪、纳米压痕仪、摩擦磨损试验机、划痕仪、接触角测试仪分别对梯度涂层的微观结构、机械性能、结合力、抗粘连性能进行表征和测试。结果发现,随着Ni-P过渡层沉积时间的增加,过渡层逐渐增厚,Ni-P-PTFE涂层中PTFE含量先下降后上升,硬度与结合力先上升后下降;在20 min时硬度、结合力分别达到最大值4.18 GPa和13.49 N;在25 min时,摩擦系数达到最小值0.17,Ni-P-PTFE层表面与水性、油性介质的接触角分别达到最大值101.1°和60.06°,此时Ni-P-PTFE涂层表现出优异的抗粘连性能。
In order to explore the influence of the thickness of Ni-P transition layer on the preparation of Ni-P-PTFE coating on stainless steel surface.Ni/Ni-P/Ni-P-PTFE three-layers structure gradient coating was prepared on stainless steel by electroplating combined with electroless plating.Scanning electron microscopy(SEM),X-ray diffraction(XRD),nano indentation,friction and wear tester,scratch tester and contact angle tester were used to characterize and test the microstructure,mechanical properties,adhesion and anti-adhesion property of the gradient coating.The results showed that,with the increased of Ni-P transition layer deposition time,the transition layer gradually thickened,the PTFE content in Ni-P-PTFE first decreased and then increased,the hardness and adhesion of Ni-P-PTFE coating first increased and then decreased.The maximum values of hardness and adhesion reach to 4.18 GPa and 13.49 N respectively when the Ni-P deposition time was 20 min.When the Ni-P deposition time was 25 min,the friction coefficient reached the minimum value of 0.17,and the contact angle between the surface of Ni-P-PTFE coating with water-based and oil-based liquid reached the maximum value of 101.1°and 60.06°respectively.At this time,the Ni-P-PTFE coating showed excellent adhesion resistance.
作者
金海阳
李伟
杨溪
马迅
刘平
王静静
JIN Haiyang;LI Wei;YANG Xi;MA Xun;LIU Ping;WANG Jingjing(School of Materials Science and Engineering ,University of Shanghai for Science and Technology,Shanghai 200093,China;Department of Oral and Maxillofacial Surgery,The Ninth People's Hospital,School of Medicine,Shanghai Jiao Tong University,Shanghai 200011,China)
出处
《功能材料》
CAS
CSCD
北大核心
2021年第6期6213-6220,共8页
Journal of Functional Materials
基金
国家自然科学基金面上资助项目(51971148)。
