摘要受荷叶启发的超疏水涂层，具有疏水、减阻降噪、自洁脱附等特性。然而，通常情况其机械耐久性能比较差，这也严重阻碍了它在实际生产生活中的应用。

本实验以超高分子量聚乙烯（UHMWPE）为基体，向其中添加一定配比的纳米改性氧化镍（NiO）和纳米二氧化硅（SiO2）颗粒，将其涂覆于钢基片表面，制得NiO-SiO2-UHMWPE超疏水涂层。主要分为以下步骤：首先用溶胶-凝胶法制备疏水纳米SiO2颗粒；再用还原法制备纳米NiO颗粒，并用FAS-17对其改性处理；然后将改性纳米NiO颗粒、纳米SiO2颗粒、UHMWPE以一定比例混合，倾倒在钢基板上并干燥制得所需超疏水涂层。利用扫描电子显微镜（SEM）、能量色散X射线谱仪（EDS）、X射线光电子能谱仪（XPS）、白光共聚焦显微镜等手段分析制得的超疏水涂层表面形貌；采用砂纸磨损、胶带剥离、弯曲折叠等手段测试涂层的机械耐久性能；利用接触角测定仪测量其接触角和滚动角，并利用旋转圆盘阻力测试仪和船模航行实验测试其水下减阻性能。87528

毕业论文关键词  超疏水  NiO  SiO2  UHMWPE  机械耐久性  水下减阻 

毕业设计说明书外文摘要

Title  Study on the construction of bionic super hydrophobic surface and the behavior of underwater drag reduction

Abstract Superhydrophobic coating inspired by lotus leaf，features such as hydrophobic, drag reduction and noise reduction, self-cleaning and desorption。However, the mechanical durability of the general situation is relatively poor, which has seriously hindered its application in the actual production and life。

    In this experiment, the ultra high molecular weight polyethylene (UHMWPE) as the matrix, to which add a certain proportion of the nano modification of nickel oxide (NiO) and nano silicon dioxide (SiO2) particles, can be sprayed on the surface of the steel sheet of NiO-SiO2-UHMWPE hydrophobic coating。Mainly pided into the following steps:First, hydrophobic nano SiO2 particles were prepared by sol-gel method;The nano NiO particles were prepared by reduction method and modified by FAS-17;The modified nano NiO particles, nano SiO2 particles and UHMEPE are mixed in a certain way, and the hydrophobic coating is dried on the steel substrate。

Using scanning electron microscope (SEM), energy dispersive X ray spectrometer (EDS), X ray photoelectron spectroscopy (XPS), laser scanning confocal microscope and other means to analyze the surface morphology of the super hydrophobic coating。The mechanical durability of sandpaper abrasion, tape stripping and bending folding means test of coating。The contact angle and sliding angle were measured by the contact angle measuring instrument and the underwater drag reduction performance was tested by the rotating disc resistance tester and the ship model navigation test。

Keywords  Superhydrophobic  NiO  SiO2   UHMWPE  Mechanical durability Underwater drag reduction         

目  次

1  绪论 1

1．1  引言 1

1．2  超疏水表面润湿性基本理论 2源-于Y优~尔^论:文.网www.youerw.com 原文+QQ7520`18766

1．3  超疏水表面微纳米粗糙结构的构建 4

1．4  超疏水表面存在的问题及应用 5

1．5  水下减阻技术研究现状与发展 6

1。 6  水下减阻行为研究方法 7

1。 7  本文主要选题背景及内容