Facile fabrication of self-healing silicone-based poly(urea-thiourea)/tannic acid composite for anti-biofouling
文献类型：CNKI期刊论文
| 作者 | Jiawen Sun; Chao Liu; Jizhou Duan ; Jie Liu; Xucheng Dong; Yimeng Zhang; Ning Wang; Jing Wang; Baorong Hou
|
| 发表日期 | 2022-10-10 |
| 出处 | Journal of Materials Science & Technology
 |
| 关键词 | Poly(dimethylsiloxane) Poly(urea-thiourea) Self-healing Hydrogen bonding Marine antifouling Tannic acid |
| 英文摘要 | A novel silicone-based poly(urea-thiourea)/tannic acid composite(PDMS-P(Ua-TUa)-TA) with excellent mechanical, self-healing and antifouling properties is developed. The multiple dynamic hydrogen bonds formed by thiourea groups, urea groups, and tannic acid(TA) molecules ensured a tough elastomer(ultimate strength: 2.47 MPa) with high stretchability(～1000%). TA molecules as partial hydrogen bonding cross-linking sites interacted rapidly with urea and thiourea groups before the migration of polymer chains, resulting in fast and efficient self-healing. Scratches on the film completely disappeared within12 min, and the repair efficiency of strength was up to 98.4% within 3 h under ambient condition. Selfhealing behavior was also evaluated in artificial seawater and the healing efficiency(HE) was 95.1%. Furthermore, TA uniformly dispersed in the polymer matrix provides good antibacterial and anti-diatom properties, as well as strong adhesion to the substrate(～2.2 MPa). Laboratory bioassays against marine bacteria adhesion(～96%, ～95% and ～93% reduction for P. sp., E. coli, and S. aureus, respectively) and diatom attachment(～84% reduction) demonstrated an outstanding antifouling property of the PDMSP(Ua-TUa)-TA. This work provides a promising pathway towards the development of high-performance silicone-based coatings for marine anti-biofouling. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the Basic Frontier Science Research Program of Chinese Academy of Sciences (No. ZDBS-LY-DQC025) ; the National Natural Science Foundation of China (No. 41706080) ; Shandong Key Laboratory of Corrosion Science |
| 卷 | v.124期:29页:3-15 |
| 语种 | 英文; |
| 分类号 | TQ637;TB332 |
| ISSN号 | 1005-0302 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187310]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CollegeofResourcesandEnvironment,HunanAgriculturalUniversity 2.KeyLaboratoryofMarineEnvironmentalCorrosionandBio-fouling,InstituteofOceanology,ChineseAcademyofSciences 3.OpenStudioforMarineCorrosionandProtection,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 4.UniversityofChineseAcademyofSciences 5.CenterforOceanMega-Science,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Jiawen Sun,Chao Liu,Jizhou Duan,et al. Facile fabrication of self-healing silicone-based poly(urea-thiourea)/tannic acid composite for anti-biofouling. 2022. |
入库方式： OAI收割
来源：海洋研究所
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