Applications of Polyaniline–Alkaline Copper Carbonate Composites for Anti-Bio-Attachment of Concrete in Marine Environments
This study proposed the use of polyaniline–alkaline copper carbonate composites as anti-corrosion and anti-biofouling concrete additives and established a set of high-dispersion preparation methods for this composite additive. The effects of polyaniline–alkaline copper carbonate composites in concre...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/2/419 |
| _version_ | 1797620064466239488 |
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| author | Shaofei Zhou Xu Liang Jiandong Gao Bo Ye Chengyu Li Jin Qian Jiangtao Shu Ying Ye |
| author_facet | Shaofei Zhou Xu Liang Jiandong Gao Bo Ye Chengyu Li Jin Qian Jiangtao Shu Ying Ye |
| author_sort | Shaofei Zhou |
| collection | DOAJ |
| description | This study proposed the use of polyaniline–alkaline copper carbonate composites as anti-corrosion and anti-biofouling concrete additives and established a set of high-dispersion preparation methods for this composite additive. The effects of polyaniline–alkaline copper carbonate composites in concrete were investigated in marine environments via the preparation of concrete specimens, actual sea suspension experiments, concrete mechanical property tests, and biological attachment avoidance tests. The experimental results showed that (1) the yield of the chemical reactions leading to the preparation of the composite was above 96.46% with a good output. The composite was hydrophilic. The addition of ethylene carbonate as a surfactant and the mixing of the composite into the concrete in a suspension form enabled uniform dispersion of the composite. (2) In the sea waters of Zhoushan, China, bio-attachment was mainly dominated by barnacles and sea anemones. Polyaniline–alkaline copper carbonate composites had good anti-bio-attachment properties and could significantly reduce the amount of bio-attachment in concrete. (3) When the additive content was less than 0.20% of the concrete mass, it did not negatively affect the mechanical properties of the concrete specimens and exerted anti-corrosion and anti-biofouling effects. This reduced the strength loss of concrete and increased the service life of the concrete specimens in the ocean. To ensure the best application effect of the compound in concrete, the recommended content of the compound is 0.05–0.15% of the concrete mass. |
| first_indexed | 2024-03-11T08:36:10Z |
| format | Article |
| id | doaj.art-e13feed13aab40ef8c74dafa2595d066 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-11T08:36:10Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-e13feed13aab40ef8c74dafa2595d0662023-11-16T21:28:54ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-02-0111241910.3390/jmse11020419Applications of Polyaniline–Alkaline Copper Carbonate Composites for Anti-Bio-Attachment of Concrete in Marine EnvironmentsShaofei Zhou0Xu Liang1Jiandong Gao2Bo Ye3Chengyu Li4Jin Qian5Jiangtao Shu6Ying Ye7Ocean College, Zhejiang University, Hangzhou 310027, ChinaOcean College, Zhejiang University, Hangzhou 310027, ChinaChinese Society for Oceanography, Beijing 100161, ChinaOcean College, Zhejiang University, Hangzhou 310027, ChinaOcean College, Zhejiang University, Hangzhou 310027, ChinaOcean College, Zhejiang University, Hangzhou 310027, ChinaDarch Construction Group Co., Ltd., Zhoushan 316000, ChinaOcean College, Zhejiang University, Hangzhou 310027, ChinaThis study proposed the use of polyaniline–alkaline copper carbonate composites as anti-corrosion and anti-biofouling concrete additives and established a set of high-dispersion preparation methods for this composite additive. The effects of polyaniline–alkaline copper carbonate composites in concrete were investigated in marine environments via the preparation of concrete specimens, actual sea suspension experiments, concrete mechanical property tests, and biological attachment avoidance tests. The experimental results showed that (1) the yield of the chemical reactions leading to the preparation of the composite was above 96.46% with a good output. The composite was hydrophilic. The addition of ethylene carbonate as a surfactant and the mixing of the composite into the concrete in a suspension form enabled uniform dispersion of the composite. (2) In the sea waters of Zhoushan, China, bio-attachment was mainly dominated by barnacles and sea anemones. Polyaniline–alkaline copper carbonate composites had good anti-bio-attachment properties and could significantly reduce the amount of bio-attachment in concrete. (3) When the additive content was less than 0.20% of the concrete mass, it did not negatively affect the mechanical properties of the concrete specimens and exerted anti-corrosion and anti-biofouling effects. This reduced the strength loss of concrete and increased the service life of the concrete specimens in the ocean. To ensure the best application effect of the compound in concrete, the recommended content of the compound is 0.05–0.15% of the concrete mass.https://www.mdpi.com/2077-1312/11/2/419concrete corrosionanti-corrosion materialsmarine biofoulingconcrete mechanical propertiespolyanilinealkaline copper carbonate |
| spellingShingle | Shaofei Zhou Xu Liang Jiandong Gao Bo Ye Chengyu Li Jin Qian Jiangtao Shu Ying Ye Applications of Polyaniline–Alkaline Copper Carbonate Composites for Anti-Bio-Attachment of Concrete in Marine Environments Journal of Marine Science and Engineering concrete corrosion anti-corrosion materials marine biofouling concrete mechanical properties polyaniline alkaline copper carbonate |
| title | Applications of Polyaniline–Alkaline Copper Carbonate Composites for Anti-Bio-Attachment of Concrete in Marine Environments |
| title_full | Applications of Polyaniline–Alkaline Copper Carbonate Composites for Anti-Bio-Attachment of Concrete in Marine Environments |
| title_fullStr | Applications of Polyaniline–Alkaline Copper Carbonate Composites for Anti-Bio-Attachment of Concrete in Marine Environments |
| title_full_unstemmed | Applications of Polyaniline–Alkaline Copper Carbonate Composites for Anti-Bio-Attachment of Concrete in Marine Environments |
| title_short | Applications of Polyaniline–Alkaline Copper Carbonate Composites for Anti-Bio-Attachment of Concrete in Marine Environments |
| title_sort | applications of polyaniline alkaline copper carbonate composites for anti bio attachment of concrete in marine environments |
| topic | concrete corrosion anti-corrosion materials marine biofouling concrete mechanical properties polyaniline alkaline copper carbonate |
| url | https://www.mdpi.com/2077-1312/11/2/419 |
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