Integration of Antifouling and Underwater Sound Absorption Properties into PDMS/MWCNT/SiO<sub>2</sub> Coatings
Any surface immersed in sea water will suffer from marine fouling, including underwater sound absorption coatings. Traditional underwater sound absorption coatings rely heavily on the use of toxic, biocide-containing paints to combat biofouling. In this paper, an environmentally-friendly nanocomposi...
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| Format: | Article |
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MDPI AG
2022-12-01
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| Series: | Biomimetics |
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| Online Access: | https://www.mdpi.com/2313-7673/7/4/248 |
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| author | Pan Cao Huming Wang Mingyi Zhu Yifeng Fu Chengqing Yuan |
| author_facet | Pan Cao Huming Wang Mingyi Zhu Yifeng Fu Chengqing Yuan |
| author_sort | Pan Cao |
| collection | DOAJ |
| description | Any surface immersed in sea water will suffer from marine fouling, including underwater sound absorption coatings. Traditional underwater sound absorption coatings rely heavily on the use of toxic, biocide-containing paints to combat biofouling. In this paper, an environmentally-friendly nanocomposite with integrated antifouling and underwater sound absorption properties was fabricated by adopting MWCNTs-COOH and SiO<sub>2</sub> into PDMS at different ratios. SEM, FTIR and XPS results demonstrated MWCNTs were mixed into PDMS, and the changes in elements were also analyzed. SiO<sub>2</sub> nanoparticles in PDMS decreased the tensile properties of the coating, while erosion resistance was enhanced. Antibacterial properties of the coatings containing MWCNTs-COOH and SiO<sub>2</sub> at a ratio of 1:1, 1:3, and 1:5 reached 62.02%, 72.36%, and 74.69%, respectively. In the frequency range of 1500–5000 Hz, the average sound absorption coefficient of PDMS increased from 0.5 to greater than 0.8 after adding MWCNTs-COOH and SiO<sub>2</sub>, which illustrated that the addition of nanoparticles enhanced the underwater sound absorption performance of the coating. Incorporating MWCNTs-COOH and SiO<sub>2</sub> nanoparticles into the PDMS matrix to improve its sound absorption and surface antifouling properties provides a promising idea for marine applications. |
| first_indexed | 2024-03-09T17:17:30Z |
| format | Article |
| id | doaj.art-a3fa9f0f413f42c78ce914e92660ef70 |
| institution | Directory Open Access Journal |
| issn | 2313-7673 |
| language | English |
| last_indexed | 2024-03-09T17:17:30Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomimetics |
| spelling | doaj.art-a3fa9f0f413f42c78ce914e92660ef702023-11-24T13:32:10ZengMDPI AGBiomimetics2313-76732022-12-017424810.3390/biomimetics7040248Integration of Antifouling and Underwater Sound Absorption Properties into PDMS/MWCNT/SiO<sub>2</sub> CoatingsPan Cao0Huming Wang1Mingyi Zhu2Yifeng Fu3Chengqing Yuan4College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, ChinaCollege of Mechanical Engineering, Yangzhou University, Yangzhou 225127, ChinaCollege of Mechanical Engineering, Yangzhou University, Yangzhou 225127, ChinaSchool of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, ChinaNational Engineering Research Center for Water Transportation Safety, Reliability Engineering Institute, Wuhan University of Technology, Wuhan 430063, ChinaAny surface immersed in sea water will suffer from marine fouling, including underwater sound absorption coatings. Traditional underwater sound absorption coatings rely heavily on the use of toxic, biocide-containing paints to combat biofouling. In this paper, an environmentally-friendly nanocomposite with integrated antifouling and underwater sound absorption properties was fabricated by adopting MWCNTs-COOH and SiO<sub>2</sub> into PDMS at different ratios. SEM, FTIR and XPS results demonstrated MWCNTs were mixed into PDMS, and the changes in elements were also analyzed. SiO<sub>2</sub> nanoparticles in PDMS decreased the tensile properties of the coating, while erosion resistance was enhanced. Antibacterial properties of the coatings containing MWCNTs-COOH and SiO<sub>2</sub> at a ratio of 1:1, 1:3, and 1:5 reached 62.02%, 72.36%, and 74.69%, respectively. In the frequency range of 1500–5000 Hz, the average sound absorption coefficient of PDMS increased from 0.5 to greater than 0.8 after adding MWCNTs-COOH and SiO<sub>2</sub>, which illustrated that the addition of nanoparticles enhanced the underwater sound absorption performance of the coating. Incorporating MWCNTs-COOH and SiO<sub>2</sub> nanoparticles into the PDMS matrix to improve its sound absorption and surface antifouling properties provides a promising idea for marine applications.https://www.mdpi.com/2313-7673/7/4/248integrated nanocomposite coatingsurface characterizationenvironmentally-friendly coatingsantifouling performance |
| spellingShingle | Pan Cao Huming Wang Mingyi Zhu Yifeng Fu Chengqing Yuan Integration of Antifouling and Underwater Sound Absorption Properties into PDMS/MWCNT/SiO<sub>2</sub> Coatings Biomimetics integrated nanocomposite coating surface characterization environmentally-friendly coatings antifouling performance |
| title | Integration of Antifouling and Underwater Sound Absorption Properties into PDMS/MWCNT/SiO<sub>2</sub> Coatings |
| title_full | Integration of Antifouling and Underwater Sound Absorption Properties into PDMS/MWCNT/SiO<sub>2</sub> Coatings |
| title_fullStr | Integration of Antifouling and Underwater Sound Absorption Properties into PDMS/MWCNT/SiO<sub>2</sub> Coatings |
| title_full_unstemmed | Integration of Antifouling and Underwater Sound Absorption Properties into PDMS/MWCNT/SiO<sub>2</sub> Coatings |
| title_short | Integration of Antifouling and Underwater Sound Absorption Properties into PDMS/MWCNT/SiO<sub>2</sub> Coatings |
| title_sort | integration of antifouling and underwater sound absorption properties into pdms mwcnt sio sub 2 sub coatings |
| topic | integrated nanocomposite coating surface characterization environmentally-friendly coatings antifouling performance |
| url | https://www.mdpi.com/2313-7673/7/4/248 |
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