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基于聚二甲基硅氧烷（PDMS）改性的多孔氧化铝的超疏水涂层。

Superhydrophobic Coating Based on Porous Aluminum Oxide Modified by Polydimethylsiloxane (PDMS).

作者信息

Olkowicz Klaudia, Buczko Zofia, Nasiłowska Barbara, Kowalczyk Kamil, Czwartos Joanna

机构信息

Air Force Institute of Technology, 01-494 Warsaw, Poland.

Łukasiewicz-Institute of Precision Mechanics, 01-796 Warsaw, Poland.

出版信息

Materials (Basel). 2022 Jan 28;15(3):1042. doi: 10.3390/ma15031042.

DOI:10.3390/ma15031042
PMID:35160987
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8840686/
Abstract

The aim of this study was to obtain a superhydrophobic coating by modifying anodized aluminum using polydimethylsiloxane (PDMS). In order to obtain a superhydrophobic coating on an aluminum substrate, a multistage treatment was implemented. Specimens of aluminum were treated by abrasive blasting, anodization in sulfuric acid, impregnation by PDMS, rinsing in toluene to remove excess of PDMS, and curing. A rough surface with an additional low free energy layer on it resulted in a superhydrophobic effect. The coating obtained has an average contact angle of 159°. The specimens were tested in terms of durability in natural conditions. Additionally, anti-icing and anti-fouling properties were evaluated. The coating was compared with anodized aluminum obtained by a basic process.

摘要

本研究的目的是通过使用聚二甲基硅氧烷（PDMS）对阳极氧化铝进行改性来获得超疏水涂层。为了在铝基板上获得超疏水涂层，实施了多阶段处理。铝试样经过喷砂处理、在硫酸中进行阳极氧化、用PDMS浸渍、在甲苯中冲洗以去除过量的PDMS以及固化。具有额外低自由能层的粗糙表面产生了超疏水效果。所获得的涂层平均接触角为159°。对试样在自然条件下的耐久性进行了测试。此外，还评估了防冰和防污性能。将该涂层与通过基本工艺获得的阳极氧化铝进行了比较。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/5b9f0187573d/materials-15-01042-g013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/161d35a34965/materials-15-01042-g007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/08b1ced8627b/materials-15-01042-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/5b9f0187573d/materials-15-01042-g013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/658e07953dc4/materials-15-01042-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/01a2e2052872/materials-15-01042-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/36a7b610aad0/materials-15-01042-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/161d35a34965/materials-15-01042-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/84ae44bd6a51/materials-15-01042-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/08b1ced8627b/materials-15-01042-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/8286aa6b7e7c/materials-15-01042-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/9146ccc77b0c/materials-15-01042-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d963/8840686/5b9f0187573d/materials-15-01042-g013.jpg

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