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环氧 /聚二甲基硅氧烷 /MCM-41超疏水涂层的制备与性能研究

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  • 1.洛阳船舶材料研究所,河南洛阳,471000; 2.凝固技术国家重点实验室,西北工业大学材料学院,西安 710072
胡晓晨(1994—),男,硕士,助理工程师,主要从事涂层、复合材料的研究。

网络出版日期: 2023-12-01

Preparation and Properties of Epoxy Resin/Polydimethylsiloxane/MCM-41 Superhydrophobic Coating

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  • 1.Luoyang Ship Material Research Institute,Luoyang,Henan 471000,China; 2. State Key Laboratory of Solidification Processing,School of Materials Science and Engineering,Northwestern Polytechnical  University,Xi′an 710072,China

Online published: 2023-12-01

摘要

针对常规超疏水涂层制备工艺繁琐等问题,以介孔 SiO2纳米颗粒( MCM-41)为填料和载体,聚二甲基硅氧烷( PDMS)为低表面能改性剂,环氧树脂及其固化剂为成膜物,采用喷涂法制备了超疏水涂层。通过场发射扫描电子显微镜、共聚焦显微镜、接触角测量仪、拉伸试验机对其表面形貌、结构、疏水性及附着力进行表征。重点考察了 PDMS改性的 MCM-41(MCM-41/PDMS)和树脂基体质量比对涂层性能的影响。结果表明:当 MCM-41/PDMS质量分数为 55%,可以得到涂层疏水性(接触角 150°,滚动角 9°)和附着力( 7. 33 MPa)的最佳匹配,涂层经过胶带剥离 300次和磨损 150周期后,水接触角仍大于 150°。

本文引用格式

胡晓晨, 白洁, 罗浩, 等 . 环氧 /聚二甲基硅氧烷 /MCM-41超疏水涂层的制备与性能研究[J]. 涂料工业, 2023 , 53(12) : 1 -8 . DOI: 10.12020/j.issn.0253-4312.2023-175

Abstract

To address issues such as cumbersome preparation processes for conventional superhydrophobic coating,superhydrophobic coating was prepared by using mesoporous silica nanoparticles(MCM-41)as filler and carrier,polydimethylsiloxane(PDMS)as low surface energy modifiers,and epoxy resin and its curing agent as film former. The morphologies,structure,hydrophobicity and adhesion of coating was characterized by FE-SEM,confocal microscope,contact angle meter and tensile testing machine. The influence of MCM-41 modified by PDMS(MCM-41/PDMS)and resin matrix mass ratio on coating performancewere mainly investigated. The results showed that the optimum match of wettability(CA=150°, SA=9°)and adhesion(7. 33 MPa)could be obtained when the content of MCM-41/PDMS was55%. The water contact angle of coating surface remained over 150° after 300 times tape peeling test and 150 cycles abrasion test.
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