郭浩冉,王优强,安恺,张海洋,黄兴保,任奕冰.CeO2/MWCNTs光热超疏水复合涂层的制备及其防结冰/除冰性能[J].表面技术,2025,54(6):182-193.
GUO Haoran,WANG Youqiang,AN Kai,ZHANG Haiyang,HUANG Xingbao,REN Yibing.Preparation of Photothermal Superhydrophobic Coatings with CeO2/MWCNTs and Their Anti-icing and Deicing Properties[J].Surface Technology,2025,54(6):182-193 |
| CeO2/MWCNTs光热超疏水复合涂层的制备及其防结冰/除冰性能 |
| Preparation of Photothermal Superhydrophobic Coatings with CeO2/MWCNTs and Their Anti-icing and Deicing Properties |
| 投稿时间：2024-04-12 修订日期：2024-08-13 |
| DOI：10.16490/j.cnki.issn.1001-3660.2025.06.017 |
| 中文关键词: 超疏水性 光热转换 防结冰 除冰 防污 自清洁 |
| 英文关键词:superhydrophobicity photothermal conversion anti-icing deicing anti-fouling self-cleaning |
| 基金项目:国家自然科学基金面上项目(52074161);山东省自然科学基金面上项目(ZR2021ME063) |
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| Author | Institution |
| GUO Haoran | School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong Qingdao 266520, China |
| WANG Youqiang | School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong Qingdao 266520, China |
| AN Kai | School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong Qingdao 266520, China |
| ZHANG Haiyang | School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong Qingdao 266520, China |
| HUANG Xingbao | National Key Laboratory of Safety and Resilience of Bridge Engineering, Hunan University, Changsha 410082, China |
| REN Yibing | School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong Qingdao 266520, China |
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| 中文摘要: |
| 目的 应对工业和日常生活中积冰带来的危害。方法 以激光刻蚀形成的微米粗糙结构为基础，采用磷酸二氢铝(ADP)进行表面装甲化，通过喷涂聚二甲基硅氧烷(PDMS)改性的CeO2/MWCNTs混合溶液构建了CeO2/MWCNTs光热超疏水涂层。MWCNTs和CeO2纳米颗粒填充在ADP形成的装甲化微米粗糙结构中，形成了双尺度微纳米结构，增强了涂层的超疏水性和光热转换能力。利用扫描电子显微镜和激光共聚焦显微镜分析涂层表面形貌;使用傅里叶红外光谱仪和接触角测量仪探究涂层表面化学组成和润湿性。结合涂层光热性能测试和防结冰/除冰测试确定了CeO2/MWCNTs最佳质量配比，并全面评估了涂层在光热转化、防结冰/除冰、防污及耐磨方面的性能。结果 当CeO2与MWCNTs的质量比为5∶5时，涂层表面的接触角最大，高达153.5°。更重要的是，该配比下涂层的光热转化效果最佳，温差达到45.2 ℃。同时，防结冰时间延长至(2 100±20) s，除冰时间缩短至180 s。结论 微纳米粗糙结构能有效增强光吸收并抑制反射，同时CeO2/MWCNTs复合材料显著提升了表面的光热转换效率。该制备方法在优化涂层光热转换性能、防结冰及除冰能力方面展现出显著成效。此外，该涂层还表现出优异的自清洁性和机械稳定性。为光热超疏水涂层的制备提供了一种新的思路。 |
| 英文摘要: |
| To deal with the hazards posed by ice accumulation in both industrial and daily life, this paper employed nanosecond laser etching of magnesium alloys to construct a micro-pit array structure, after which the micro-pit structured magnesium alloys were armored with aluminum dihydrogen phosphate (ADP). Finally, photothermal superhydrophobic coatings (CeO2/MWCNTs) were prepared by spraying CeO2/MWCNTs suspensions with different mass ratios onto the surface of pretreated magnesium alloys. In particular, ADP and PDMS were used as binders to adsorb MWCNTs entangled CeO2 nanoparticles immobilized on the substrate surface to form a double-size micro-nanostructure, which reinforced the mechanical stability of the coatings. In addition, MWCNTs had excellent photothermal conversion function and CeO2 nanoparticles had certain photothermal catalytic function, so the combination of CeO2/MWCNTs could effectively improve the photothermal and anti-icing/deicing properties of the coatings. The characteristic functional groups of the coatings were analyzed with a Fourier infrared spectrometer. The wettability was measured with a contact angle meter and then the elemental content of the coating surface was then analyzed with an energy spectrometer, and the characteristic functional groups of the coating were analyzed with a Fourier infrared spectrometer. From the elemental distribution diagram, elements C, O, Ce, N, P, and Al were uniformly distributed, where the C element was mainly from the incorporation of PDMS and MWCNTs, the Ce element was mainly from CeO2, the N element was mainly from MWCNTs, and the P and Al elements were mainly from ADP. As observed in the FTRI spectra, the coating contained not only C—C bond stretching vibration peaks and C—H bond bending vibration peaks caused by the oxidation of the substrate surface, O—P—O bending vibration peaks caused by the ADP armor, and Si—CH3 stretching vibration peaks caused by the PDMS, but also Ce—O stretching vibration peaks caused by CeO2, and C—O—Mg stretching vibration peaks caused by the MWCNTs. The above tests further illustrated that CeO2/MWCNTs composites were uniformly sprayed onto the surface. In the photothermal performance test, a xenon lamp simulator was utilized to simulate light exposure, following which an infrared camera was used to take infrared images and record the coating temperature change process. In the anti-icing/de-icing experiment, the process of freezing of water droplets and melting of ice cubes in the low temperature environment (−15.0 ℃) of the coatings were observed. Furthermore, self-cleaning and sandpaper abrasion tests were performed. After a series of tests, the optimal mass ratio of CeO2/MWCNTs was explored to be 5∶5. From the scanning electron microscope and three-dimensional topography, the surface particles of the coatings were uniformly dispersed and regular in shape, with a roughness of 32.815 5 mm. The surface contact angles was measured up to 153.5°. In the photothermal performance test, the surface temperature of the coating warmed from 6.4 to 52.3 ℃ at one solar light intensity. In the anti-icing experiment, the freezing time of water droplets on the coating surface was extended to (2 100±20) s. In the de-icing experiment, the melting time of the surface ice was reduced to 180 s. Besides, the coating remained hydrophobic even after stain protection and 60 sandpaper abrasion tests. ADP@CeO2/MWCNTs/PDMS coatings, which were fabricated by a simple method utilizing CeO2/MWCNTs materials, provided a new idea for the preparation of photothermal antifouling superhydrophobic coatings. |
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