Towards weathering and corrosion resistant, self-warning and self-healing epoxy coatings with tannic acid loaded nanocontainers
Abstract In this work, an active protective epoxy coating with weathering resistant, corrosion-warning, and self-healing properties was developed by incorporating tannic acid (TA) loaded mesoporous silica (MSN-TA) nanocontainers. The introduction of MSN-TA nanocontainers could alleviate the coating...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-05-01
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| Series: | npj Materials Degradation |
| Online Access: | https://doi.org/10.1038/s41529-023-00360-7 |
| _version_ | 1797822758171705344 |
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| author | Jinke Wang Weimin Tan Hao Yang Xingxing Rao Xinliang Luo Lingwei Ma Chenhao Ren Arjan Mol Dawei Zhang |
| author_facet | Jinke Wang Weimin Tan Hao Yang Xingxing Rao Xinliang Luo Lingwei Ma Chenhao Ren Arjan Mol Dawei Zhang |
| author_sort | Jinke Wang |
| collection | DOAJ |
| description | Abstract In this work, an active protective epoxy coating with weathering resistant, corrosion-warning, and self-healing properties was developed by incorporating tannic acid (TA) loaded mesoporous silica (MSN-TA) nanocontainers. The introduction of MSN-TA nanocontainers could alleviate the coating degradation via scavenging the radicals generated during UV irradiation. Compared with the blank coating, the coating containing 5 wt.% MSN-TA nanocontainers exhibited much less degradation in surface morphology, wettability and glossiness, and maintained a good barrier property after 384 h of accelerated weathering. Once the coating was damaged, the released TA could react with the Fe3+ ions to form a chelate that endowed the coating scratch with a visible black coloration, i.e. triggering a self-warning capability to indicate the initial onset of corrosion. In addition, the generated chelate could inhibit extensive corrosion propagation, offering a significant self-healing effect demonstrated by the stabilized impedance modulus values during 28 days of immersion in NaCl solution. |
| first_indexed | 2024-03-13T10:13:52Z |
| format | Article |
| id | doaj.art-b96a5b17740344ad9acefa8e17180f14 |
| institution | Directory Open Access Journal |
| issn | 2397-2106 |
| language | English |
| last_indexed | 2024-03-13T10:13:52Z |
| publishDate | 2023-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Materials Degradation |
| spelling | doaj.art-b96a5b17740344ad9acefa8e17180f142023-05-21T11:22:21ZengNature Portfolionpj Materials Degradation2397-21062023-05-017111210.1038/s41529-023-00360-7Towards weathering and corrosion resistant, self-warning and self-healing epoxy coatings with tannic acid loaded nanocontainersJinke Wang0Weimin Tan1Hao Yang2Xingxing Rao3Xinliang Luo4Lingwei Ma5Chenhao Ren6Arjan Mol7Dawei Zhang8Beijing Advanced Innovation Center for Materials Genome Engineering, Institute for Advanced Materials and Technology, University of Science and Technology BeijingCNOOC Changzhou Paint and Coatings Industry Research Institute Limited Liability CompanyBeijing Advanced Innovation Center for Materials Genome Engineering, Institute for Advanced Materials and Technology, University of Science and Technology BeijingCNOOC Changzhou Paint and Coatings Industry Research Institute Limited Liability CompanyCNOOC Changzhou Paint and Coatings Industry Research Institute Limited Liability CompanyBeijing Advanced Innovation Center for Materials Genome Engineering, Institute for Advanced Materials and Technology, University of Science and Technology BeijingBeijing Advanced Innovation Center for Materials Genome Engineering, Institute for Advanced Materials and Technology, University of Science and Technology BeijingDepartment of Materials Science and Engineering, Delft University of TechnologyBeijing Advanced Innovation Center for Materials Genome Engineering, Institute for Advanced Materials and Technology, University of Science and Technology BeijingAbstract In this work, an active protective epoxy coating with weathering resistant, corrosion-warning, and self-healing properties was developed by incorporating tannic acid (TA) loaded mesoporous silica (MSN-TA) nanocontainers. The introduction of MSN-TA nanocontainers could alleviate the coating degradation via scavenging the radicals generated during UV irradiation. Compared with the blank coating, the coating containing 5 wt.% MSN-TA nanocontainers exhibited much less degradation in surface morphology, wettability and glossiness, and maintained a good barrier property after 384 h of accelerated weathering. Once the coating was damaged, the released TA could react with the Fe3+ ions to form a chelate that endowed the coating scratch with a visible black coloration, i.e. triggering a self-warning capability to indicate the initial onset of corrosion. In addition, the generated chelate could inhibit extensive corrosion propagation, offering a significant self-healing effect demonstrated by the stabilized impedance modulus values during 28 days of immersion in NaCl solution.https://doi.org/10.1038/s41529-023-00360-7 |
| spellingShingle | Jinke Wang Weimin Tan Hao Yang Xingxing Rao Xinliang Luo Lingwei Ma Chenhao Ren Arjan Mol Dawei Zhang Towards weathering and corrosion resistant, self-warning and self-healing epoxy coatings with tannic acid loaded nanocontainers npj Materials Degradation |
| title | Towards weathering and corrosion resistant, self-warning and self-healing epoxy coatings with tannic acid loaded nanocontainers |
| title_full | Towards weathering and corrosion resistant, self-warning and self-healing epoxy coatings with tannic acid loaded nanocontainers |
| title_fullStr | Towards weathering and corrosion resistant, self-warning and self-healing epoxy coatings with tannic acid loaded nanocontainers |
| title_full_unstemmed | Towards weathering and corrosion resistant, self-warning and self-healing epoxy coatings with tannic acid loaded nanocontainers |
| title_short | Towards weathering and corrosion resistant, self-warning and self-healing epoxy coatings with tannic acid loaded nanocontainers |
| title_sort | towards weathering and corrosion resistant self warning and self healing epoxy coatings with tannic acid loaded nanocontainers |
| url | https://doi.org/10.1038/s41529-023-00360-7 |
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