含氟双疏涂层的制备及其润湿性研究_孟旸.docx
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1、 学位论文独创性声明 本人所呈交的学位论文是我在指导教师的指导下进行的研宂工作及取得的研究 成果。据我所知,除文中已经注明引用的内容外,本论文不包含其他个人己经发表 或撰写过的研究成果。对本文的研究做出重要贡献的个人和集体,均已在文中作了 明确说明并表示谢意 。 本人完全了解东北石油大学有关保留、使用学位论文的规定。学校有权保留学位论 文并向国家主管部门或其指定机构送交论文的电子版和纸质版,允许论文被查阅和借 阅,可以采用影印、缩印或扫描等复制手段保存、汇编学位论文,可以公布论文的全部 或部分内容。东北石油大学有权将木人的学位论文加入中国优秀硕士学位论文全文数 据库 .中国博士学位论文全文数据
2、库和编入中国知识资源总库。保密的学位论 文在解密后适卬本规定 学位 论文作者签名: 学位论文使用授权声明 指导小组成员签名 : Thesis for the Master degree in Engineering Fabrication and Wettability of the Fluorine-containing Hydrophobic and Oleophobic Coatings Candidate: Meng Yang Tutor: Wang Huaiyuan Specialty: Chemistry Engineering Date of oral examination:
3、3rd June. 2014 University: Northeast Petroleum University 东北石油大学硕士研宄生学 位论文 含氟双疏涂层的制备及其润湿性研究 摘要 新材料是科技进步的基石,仿生功能一体化材料的研发是 21世纪材料研宄的前沿 课题和热点。双疏(疏水疏油)材料,尤其是超双疏材料,因具有广泛的实际应用价值 而引起人们越来越多的关注。采用简单方法制备低成本超疏水、超疏油涂层的研宄国内 外报道甚少,也未见这种双疏、超双疏复合涂层显著耐摩擦磨损的研宄报道。因此,基 于工艺手法、材料和经济等原因,含氟复合涂层材料及其优良的耐摩擦磨损性能被寄予 厚望。 本文采用简单方
4、法制备了含氟复合双疏涂层,酸蚀刻处理铝板后对该涂层的疏水疏 油性能进行了初步探索。采用喷涂工艺,以 NH4HC03为造孔剂,制备的 PPS基、多孔 PPS基复合超双疏涂层具有低成本、耐高温、耐摩擦磨损等优良特性,结合扫描电子显 微镜 ( SEM)、 X射线衍射( XRD)、 傅里叶红外光谱检测 ( FT-IR)、 热重 ( TGA)分析、 销盘式摩擦磨损试验机等对 PPS基复合涂层进行多角度的观察和分析。论文的主要研宄 内容和结论如下: (1) 以蚀刻的铝基板为基底,以低表面能物质(含氟聚合物 A)进行修饰,使之 具有疏水、疏油性。结果表明,固体表面的纳微复合结构为双疏表面的形成提供结构支 撑
5、;碳管特殊的一维管状结构提供了有效的空间支架,对固体表面的不润湿性起到一定 的支撑作用;低表面能物质的修饰,更有利于双疏表面的形成。 (2) 采用纳微复合结构和低表面能物质所制备的 PPS基复合涂层,具有良好的超 双疏、耐高温、耐腐蚀、耐摩擦磨损性能。结果表明,当含氟聚合物 B含量为 43wt% 时,加入少量的表面活性剂 A, 涂层对水、甘油、乙二醇、原油、油水混合物的接触角 为 173 、 156 、 153 、148 和 152 。此外,涂层 的耐腐蚀性和热稳定性十分优异。不同 含氟聚合物 B含量的涂层,直到摩擦磨损实验进行 30h后, PPS/43wt%含氟聚合物 B/PEEK涂层仍完好
6、无损,同时,磨损面上对水、甘油、乙二醇仍能保持双疏的特性。 (3) 以 NH4HC03为造孔剂,制备多孔 PPS基超双疏复合涂层,并对其表面结构、 耐摩擦磨损等性能进行研宄。结果表明,以 NH4HC03为造孔剂的 PPS基复合涂层具有 良好的超双疏性,当NH4HC03含量为 5wt%时,对水、甘油、乙二醇的接触角分别为 162 、 158 和 152 。此外,多孔 PPS基超双疏涂层具有优良的耐摩擦磨损性,当 NH4HC03 含量为 5wt%-10wt%时,经 1000目的砂纸打磨 10000次后,涂层仅有轻微磨损痕迹。 关键词 :含氟聚合物;聚苯硫醚 ( PPS);双疏涂层;纳微复合结构 东
7、北石油大学硕士研宄生学位论文 Fabrication and Wettability of the Fluorine-containing Hydrophobic and Oleophobic Coatings ABSTRACT New material is the cornerstone of scientific and technological progress. Research and development of the bionic functional integrated materials are current topics and hotspots of mater
8、ial research in the 21st century. Amphiphobic (hydrophobic and oleophobic) materials, especially superamphiphobic materials have attracted more and more attention because it is widely practical application value. The research of preparation low-cost superamphiphobic coatings has rarely been reported
9、 through simple method at home and abroad, as well as the research of amphiphobic and superamphiphobic composite coatings on friction and wear properties. Because of these limitations and downsides, there is an interest in fluorine-containing composite coatings with good friction and wear properties
10、 for process, material, and economical reasons. In this paper, simple methods have been made to prepare fluorine-containing amphiphobic composite coatings and the amphiphobic properties are also explored after A1 substrate is made by acid etching. The coatings have used NH4HCO3 as pore-forming reage
11、nt and a simple spraying method is used to fabricate PPS-based, porous PPS-based superamphiphobic composite coatings with the good performance, such as low-cost, high temperature tolerance and wear-resistance. The PPS-based composite coatings are analyzed from many perspectives by using SEM, XRD, FT
12、-IR, TGA and the tribological tester. The main contents and conclusions of this work are summarized as follows: (1) The etched aluminum plates as substrates and then modified by low surface energy materials (fluorine-containing polymer A) so that made the coatings show hydrophobic and oleophobic. Re
13、sults indicate that micro/nano composite structures of solid surfaces can provide structural support for forming amphiphobic surface. Special one-dimensional tubular structure of carbon nanotubes can provide efficient space frame, they play a supporting role in the non-wettability of the solid surfa
14、ce. Modifying by the low surface energy materials can form amphiphobic surface easily. (2) The PPS-based coatings with the micro/nano composite structure and low surface energy materials design have the excellent superamphiphobic, heat-resistance, anti-corrosion and wear-resistance properties. The r
15、esults show that, when fluorine-containing polymer Bs content increases to 43 wt%, a small amount of surfactant A was added, the coatings contact angles of water, glycerine, ethylene glycol, crude oil and oil-water mixture are 173, 156, 153, 148 and 152, respectively. Furthermore, the coatings show
16、outstanding anti-corrosion m 东北石油大学硕士研究生学位论文 and heat-resistance. The PPS/43wt% fluorine-containing polymer B/PEEK coating does not show any sign of failure until the experiments is stopped (about 30h) and the contact angles of water, glycerine and ethylene glycol can still keep amphiphobic. (3) Por
17、ous PPS-based composite superamphiphobic coatings are prepared with a pore-forming reagent of NH4HCO3, and the surface morphologies and wear-resistance properties are studied. Results indicate that the PPS-based composite coatings using NH4HCO3 as pore-forming reagent is superamphiphobic. When conte
18、nt of NH4HCO3 is 5wt%, contact angles of water, glycerine and ethylene glycol are 162, 158 and 152, respectively. In addition, porous PPS-based superamphiphobic coatings also have preferable performance on the friction and wear experiment. When the contents of NH4HCO3 are 5wt%-10wt%, coatings can re
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