张延乐,王红波,曾德军,孙政玉.BN管片结构改性不锈钢网的疏水和耐高温性能[J].表面技术,2025,54(2):213-221.
ZHANG Yanle,WANG Hongbo,ZENG Dejun,SUN Zhengyu.Hydrophobicity and High Temperature Resistance of BN Tube-sheet Composite Structure Modified Stainless Steel Mesh[J].Surface Technology,2025,54(2):213-221 |
| BN管片结构改性不锈钢网的疏水和耐高温性能 |
| Hydrophobicity and High Temperature Resistance of BN Tube-sheet Composite Structure Modified Stainless Steel Mesh |
| 投稿时间：2024-03-08 修订日期：2024-06-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2025.02.018 |
| 中文关键词: BN纳米管 BN纳米片 复合结构 复合材料 疏水改性 耐高温 |
| 英文关键词:BN nanotube BN nanosheet composite structure composites hydrophobic modification high-temperature resistance |
| 基金项目:西安市科技计划(2023JH-ZCGJ-0141) |
| 作者 | 单位 |
| 张延乐 | 长安大学 材料科学与工程学院，西安 710064 |
| 王红波 | 长安大学 材料科学与工程学院，西安 710064 |
| 曾德军 | 长安大学 材料科学与工程学院，西安 710064 |
| 孙政玉 | 长安大学 材料科学与工程学院，西安 710064 |
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| Author | Institution |
| ZHANG Yanle | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China |
| WANG Hongbo | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China |
| ZENG Dejun | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China |
| SUN Zhengyu | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China |
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| 中文摘要: |
| 目的 利用表面生长纳米片的BN纳米管对不锈钢网基体进行表面改性，显著提高网表面的密度，增加空气垫效应，实现疏水性和耐高温性能的结合。方法 以质量比为8∶2∶1的氧化硼粉、纳米硼粉和纳米铁粉为原料，采用化学气相沉积法在不锈钢网表面沉积BN纳米管片复合结构。利用扫描电镜、接触角测量仪和热重-差热分析仪分别对BN纳米管片结构的形貌、疏水性以及耐高温性进行表征，探讨了沉积温度对复合结构形貌的影响规律，以及形貌与材料的疏水性和耐高温性之间的定量关系。结果 随着沉积温度从 1 220 ℃升高到1 250 ℃，BN纳米管的直径从50 nm增加到710 nm，且纳米管的数量显著增加，其表面纳米片分布越来越浓密。润湿角随着沉积温度的升高呈现出先增加后减小的趋势。在沉积温度为1 230 ℃时，改性后的不锈钢网表现出最大润湿角151.5°，达到超疏水效果。此时的BN纳米管直径约为151 nm，且表面的BN纳米片分布浓密。当温度高于1 230 ℃时，纳米管直径进一步粗化，润湿角也随之减小。经过700 ℃高温耐氧化测试发现，改性后的不锈钢网仍然保持着良好的疏水效果。结论 BN纳米管片复合结构可显著提高不锈钢网的表面空气垫效应，其形貌主要受沉积温度的影响。改性后的不锈钢网在700 ℃以下的疏水效果远高于高分子化学改性后的不锈钢网。本工艺实现了疏水性和耐高温性的结合，为新型耐高温疏水材料的应用打下良好的基础。 |
| 英文摘要: |
| The problems of water vapor corrosion, frosting and icing of machinery working parts in high temperature environments have always been the greatest difficulties in the operation of equipment. The application of hydrophobic materials is a key technology to effectively avoid the contact between water and machinery equipment. This study achieved a combination of hydrophobicity and high temperature resistance for stainless steel meshes, through preparing a BN tube-sheet composite structure coating on the surface of the stainless steel mesh, so as to significantly increase the surface density and the air cushion effect of the mesh. In this paper, a BN superhydrophobic nanotube-sheet composite structure was prepared on a stainless steel mesh by the mass ratio of B2O3∶B∶Fe =8∶2∶1, a BN coating on the stainless steel mesh with excellent superhydrophobic properties was obtained by chemical vapor deposition (CVD). XRD was used to analyze the phase constituent. The surface morphology at different high temperature (1 220, 1 230, 1 240, 1 250 ℃) and the weight of the material at different high temperature (650, 700, 750 and 800 ℃) were analyzed by scanning electron microscopy (S-4800) and thermogravimetric- differential thermal synchronous analyzer (TG-DTA). The hydrophobic properties of the stainless steel mesh surface were evaluated by measuring the wetting angle (JC2000D1) before and after high temperature treatment. The influence of deposition temperature on the morphology of the composite structure and the quantitative relationship between the morphology, hydrophobicity and high temperature resistance of the material were studied. The results showed that BN phase was presented for all surfaces, at the deposition temperature from 1 220 to 1 250 ℃, the diameter of the BN nanotube increased from 50 to 710 nm by high temperature chemical vapor deposition at stainless steel wires. It was found that the nanosheets of their surfaces continued to be denser. The BN nanotube sheet composite structure formed at 1 230 ℃ had a diameter of about 151 nm and was very dense. The wetting angle increased and then decreased with the increase of deposition temperature. The maximum wetting angle of 151.5° was obtained at 1 230 ℃, which achieved superhydrophobic effect. When the temperature was higher than 1 230 ℃, the diameter of the nanotubes was further coarsened and the wetting angle decreased. After a 700 ℃ high temperature oxidation resistance test, it was found that the modified stainless steel mesh still maintained a good hydrophobic effect. The BN nanotube sheet composite structure could significantly improve the surface roughness of the stainless steel mesh, and its morphology was mainly affected by the deposition temperature. The stainless steel mesh with the BN nanotube sheet composite structure deposited at 1 230 ℃ could reach a wetting angle of 151.1°. The BN nanotube composite structure can significantly improve the air cushion effect, and its morphology is mainly affected by the deposition temperature. The BN modified stainless steel mesh still maintains an excellent hydrophobic effect, which is much better than that of the polymer chemically modified material. The combination of hydrophobicity and high temperature resistance is implemented successfully, which lays a superiority foundation for the development of new high temperature resistant hydrophobic materials. |
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