Hiển thị ở chế độ nhân viên: Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals

Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals

Magnetic absorbing materials suffer from corrosion and aging in harsh environments such as ocean and acid, which limits their practical applications. Therefore, it is important to design a material with excellent corrosion resistance and microwave absorption properties. Herein, perfluorooctyltrietho...

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Tác giả chính:	Xianyu, Jianga, Weihong, Wana, Bo, Wang
Định dạng:	Bài trích
Ngôn ngữ:	English
Nhà xuất bản:	Elsevier 2022
Chủ đề:	Carbonyl iron PFOTES layer
Truy cập trực tuyến:	https://www.sciencedirect.com/science/article/abs/pii/S0169433221023734?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/5852 https://doi.org/10.1016/j.apsusc.2021.151320
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spelling	oai:localhost:PNK-58522022-08-17T05:54:52Z Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals Xianyu, Jianga Weihong, Wana Bo, Wang Carbonyl iron PFOTES layer Magnetic absorbing materials suffer from corrosion and aging in harsh environments such as ocean and acid, which limits their practical applications. Therefore, it is important to design a material with excellent corrosion resistance and microwave absorption properties. Herein, perfluorooctyltriethoxysilane (PFOTES) modified carbonyl iron (CI) with tunable PFOTES content was prepared by the sol–gel method. The presence of PFOTES layer improved the corrosion resistance and microwave absorption of CI. The good hydrophobicity of PFOTES layer with the static contact angle of 129.73° hindered the contact of corrosive medium with CI core. The corrosion current of CI@PFOTES composite decreased significantly, and the corrosion rate was reduced by three orders of magnitude. The surface coating not only affected the electromagnetic parameters of carbonyl iron, but also improved the impedance matching of materials. Electromagnetic performance test results demonstrated that the microwave absorption performance of CI@PFOTES composite was better than that of carbonyl iron, and its minimum reflection loss was − 40.45 dB at 4.08 GHz with a matching thickness of 3.5 mm. Our work provides a new perspective for preparing composites with good microwave absorption and corrosion resistance in practical applications 2022-07-13T01:59:42Z 2022-07-13T01:59:42Z 2021 Bài trích https://www.sciencedirect.com/science/article/abs/pii/S0169433221023734?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/5852 https://doi.org/10.1016/j.apsusc.2021.151320 en Elsevier
institution	Digital Phenikaa
collection	Digital Phenikaa
language	English
topic	Carbonyl iron PFOTES layer
spellingShingle	Carbonyl iron PFOTES layer Xianyu, Jianga Weihong, Wana Bo, Wang Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals
description	Magnetic absorbing materials suffer from corrosion and aging in harsh environments such as ocean and acid, which limits their practical applications. Therefore, it is important to design a material with excellent corrosion resistance and microwave absorption properties. Herein, perfluorooctyltriethoxysilane (PFOTES) modified carbonyl iron (CI) with tunable PFOTES content was prepared by the sol–gel method. The presence of PFOTES layer improved the corrosion resistance and microwave absorption of CI. The good hydrophobicity of PFOTES layer with the static contact angle of 129.73° hindered the contact of corrosive medium with CI core. The corrosion current of CI@PFOTES composite decreased significantly, and the corrosion rate was reduced by three orders of magnitude. The surface coating not only affected the electromagnetic parameters of carbonyl iron, but also improved the impedance matching of materials. Electromagnetic performance test results demonstrated that the microwave absorption performance of CI@PFOTES composite was better than that of carbonyl iron, and its minimum reflection loss was − 40.45 dB at 4.08 GHz with a matching thickness of 3.5 mm. Our work provides a new perspective for preparing composites with good microwave absorption and corrosion resistance in practical applications
format	Bài trích
author	Xianyu, Jianga Weihong, Wana Bo, Wang
author_facet	Xianyu, Jianga Weihong, Wana Bo, Wang
author_sort	Xianyu, Jianga
title	Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals
title_short	Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals
title_full	Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals
title_fullStr	Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals
title_full_unstemmed	Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals
title_sort	enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals
publisher	Elsevier
publishDate	2022
url	https://www.sciencedirect.com/science/article/abs/pii/S0169433221023734?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/5852 https://doi.org/10.1016/j.apsusc.2021.151320
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score	8.891145

Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals

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