胡志威,郭毅,董丽杰.SEBS/sCFO复合涂层的制备及防污性能[J].表面技术,2024,53(20):223-231.
HU Zhiwei,GUO Yi,DONG Lijie.Preparation and Antifouling Properties of SEBS/sCFO Composite[J].Surface Technology,2024,53(20):223-231 |
| SEBS/sCFO复合涂层的制备及防污性能 |
| Preparation and Antifouling Properties of SEBS/sCFO Composite |
| 投稿时间：2023-10-29 修订日期：2024-03-15 |
| DOI：10.16490/j.cnki.issn.1001-3660.2024.20.020 |
| 中文关键词: 铁酸钴 苯并三唑 聚(苯乙烯-乙烯-丁烯-苯乙烯) 嵌段共聚物 喷涂法 抗生物淤积 |
| 英文关键词:cobalt ferrite benzotriazole poly (styrene ethylene butene styrene) block copolymer spray coating method antifouling |
| 基金项目:海南省科技计划三亚崖州湾联合项目(2021CXLH0021) |
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| 中文摘要: |
| 目的 合成可抑制海洋生物吸附的磁性纳米微球，制备具有微纳结构的新型防污复合材料。方法 首先采用溶剂热法和一步吸附法制备铁酸钴/苯并三唑(CFO/BTA，sCFO)磁性纳米球，将sCFO与嵌段共聚物聚(苯乙烯-乙烯-丁烯-苯乙烯)(SEBS)复合，通过喷涂法制备SEBS/sCFO复合涂层。使用透射电子显微镜、X射线衍射仪、傅里叶变换红外光谱仪、热重分析仪等分析sCFO的微观形貌、晶体结构和化学组成等，通过扫描电子显微镜、接触角测试、蛋白吸附实验、硅藻吸附实验等分析sCFO添加量对SEBS/sCFO复合涂层的表面形貌和防污性能的影响。结果 所制备的sCFO为球形结构，尺寸为60~70 nm，饱和磁化强度为44.7 emu/g，其中苯并三唑含量约为32.3%。SEBS涂层的表面因为相分离而呈现褶皱状形貌，SEBS/sCFO复合涂层的表面形貌也因磁性纳米粒子的诱导作用而发生取向，随着sCFO添加量的增加，SEBS/sCFO复合涂层的相分离结构发生变化，提高了SEBS/sCFO复合涂层的抗蛋白吸附性能和抗硅藻吸附性能。结论 sCFO纳米球的添加提高了复合涂层的抗蛋白吸附性能、抗硅藻吸附性能，通过sCFO纳米球对SEBS热塑性弹性体表面结构的诱导作用，为研制具有不同微纳表面的新型防污涂层提供了新方法，在海洋防污领域具有潜在的应用前景。 |
| 英文摘要: |
| Marine transportation efficiency, fuel consumption, and greenhouse gas emissions were deeply affected by biofouling, which has caused huge economic losses. Diatoms are the main species that form microbial membranes in biofouling, and their adhesion on the hull surface can induce the adhesion of large fouling organisms. Spraying organic composite coating on ship hulls can effectively reduce the attachment of fouling organisms, which is a relatively economical and efficient prevention method. Composite materials, used for hull antifouling, are mainly divided into biocide coating and fouling release coating. The biocide coating relies on biocidal agents in the substrate to prevent fouling organisms from growing on the material surface. The fouling release coating can facilitate the removal of fouling organisms by weakening their adhesion to the material surface. Materials with microstructures on the surface are a kind of fouling release coating, such as lotus leaves, shark skin, which usually have good anti-fouling performance. This material can reduce the adhesion of fouling organisms without adding biocides, which is friendly to the marine environment. However, the preparation process of the microstructure-surface materials is usually difficult, generally including template method, etching method, induction method and so on. It is difficult to have large-scale production. It is of great significance to develop new antifouling coating with the special microstructures on the surface. Block copolymers are composed of two or more kinds of chain segments, and their surfaces are convex and concave at micrometer and nanometer level due to microphase separation. SEBS has stable chemical properties and good aging resistance. The surface morphology of the coating can be secondarily induced by mixing nano-filler in the SEBS block copolymer, which is expected to further improve the antifouling performance of the coating. Cobalt ferrite/benzotriazole nanospheres (sCFO) were synthesized by a solvotherm and one-step adsorption method. Consequently, the sCFO was added into SEBS to prepare antifouling composite coating via a spraying method. The microscopic morphology, crystal structure and chemical composition of sCFO were observed by transmission electron microscope, X-ray diffractometer, Fourier transform infrared spectrometer and thermogravimetric analyzer. The effects of sCFO on surface morphology and antifouling performance of SEBS/sCFO composite coatings were analyzed by scanning electron microscopy, protein adsorption experiment and diatom adsorption experiment. The results indicated that the prepared sCFO was spherical, with a size of about 60-70 nm. The saturation magnetization of the nanospheres was 44.7 emu/g, and the content of BTA in sCFO was about 33.0%. The addition of sCFO to the coating induced the folding surface morphology of the SEBS/sCFO composite coating. The composite coating with 4% sCFO had the best anti-protein adsorption ability, and the anti-diatom adsorption performance of the coating was improved. The surface microstructure composite coating has certain anti-protein adsorption and anti-diatom adsorption properties, and the surface morphology is induced by the addition of sCFO nanospheres, which has a good development prospect. |
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