高分子−自抛光漆复合涂层减阻特性实验研究

刘浩; 谢络; 姚博仁; 孙孟舸; 胡海豹

doi:10.6052/0459-1879-23-049

高分子−自抛光漆复合涂层减阻特性实验研究

doi: 10.6052/0459-1879-23-049

刘浩^*,
谢络^{*, †, ,},
姚博仁^*,
孙孟舸^**,
胡海豹^*

*.
西北工业大学航海学院, 西安 710072
†.
西北工业大学重庆科创中心, 重庆 401135
**.
昆明船舶设备集团有限公司, 昆明 650051

基金项目: 国家自然科学基金(12102358, 52071272), 中央高校基本科研业务费专项资金(3102021HHZY030008), 中国博士后科学基金(2021M692617), 重庆市自然科学基金(cstc2021jcyj-msxmX0393)和陕西省科学技术协会青年人才托举计划(20220512)资助项目

详细信息

通讯作者:
谢络, 副教授, 主要研究方向为水下仿生减阻. E-mail: xieluo@nwpu.edu.cn

中图分类号: O357.5⁺4
计量
- 文章访问数: 371
- HTML全文浏览量: 124
- PDF下载量: 52
- 被引次数: 0
出版历程
- 收稿日期: 2023-02-18
- 录用日期: 2023-05-05
- 网络出版日期: 2023-05-06
- 刊出日期: 2023-06-18

EXPERIMENTAL STUDY ON DRAG REDUCTION CHARACTERISTICS OF POLYMER-SELF-POLISHING PAINT COMPOSITE COATING

Liu Hao^*,
Xie Luo^{*, †
, ,},
Yao Boren^*,
Sun Mengge^**,
Hu Haibao^*

*.
School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
†.
Chongqing Science and Technology Innovation Center, Northwestern Polytechnical University, Chongqing 401135, China
**.
Kunming Shipping Equipment Co., Ltd., Kunming 650051, China

摘要

摘要: 基于减阻涂层易工程应用的优势和高聚物优异的湍流减阻性能, 研发复合高聚物减阻涂层, 在船舶及水下航行器领域应用前景将非常广阔, 而目前这方面的研究仍相对缺乏. 为此, 本文基于PAM和PEO减阻剂制备国产自抛光漆复合涂层, 通过水下平板阻力测试实验系统研究了涂层种类、主流流速、PAM/PEO浓度对减阻的影响规律, 并对复合涂层表面粗糙度进行分析. 结果表明: 高分子−自抛光漆复合涂层具有减阻效果, 采用单面减阻涂层最大实现9.4%的减阻; 流速在0.5 ~ 1.8 m/s变化时不会显著改变减阻率, 减阻率变化不超过3.5%; 随着涂层中高聚物浓度的增大, 自抛光漆−PAM涂层减阻率先增大后减小, 自抛光漆−PEO涂层减阻率先保持平稳后迅速下降; 当涂层中高聚物浓度超过某一临界值时都出现了减阻率下降甚至增阻现象, 其原因为涂层表面粗糙度增大及溶液黏度变化. 本工作可为高聚物减阻涂层的工程化应用提供参考.
- 高分子−自抛光漆 /
- 复合涂层 /
- 涂层减阻 /
- 表面粗糙度
Abstract: Based on the advantages of the drag reduction coating (easy engineering application) and the polymer (excellent turbulent drag reduction performance), the development of composite polymer drag reduction coating would have a broad application prospect in the field of ships and underwater vehicles, but there is still a relative lack of research in this field. Thus, the present work prepared domestic self-polishing paint composite coatings based on PAM and PEO drag reducing agents, and investigated the influence of coating types, flow velocity and PAM/PEO concentration on the drag reduction performance through the underwater plate resistance test, and surface roughness. The results showed that polymer-self-polishing paint composite coating has drag reduction effect, which can produce 9.4% drag reduction by using single-sided drag reduction coating; Flow velocity variations have a little influence on the drag reduction rate, and the induced variation of the drag reduction rate was smaller than 3.5%; When increasing the polymer concentration, the drag reduction rate of self-polishing paint-PAM coating first increased and then decreased, while the drag reduction rate of self-polishing paint-PEO coating first kept stable and then decreased rapidly; When the polymer concentration exceeded a certain critical value, the drag reduction rate decreased, and the coating even increased the flow drag. This is because the surface roughness of the coating increased and the viscosity of the solution changed when adding too many polymers. This work would provide supports for the engineering application of polymer drag reduction coating.
- polymer-self-polishing paint /
- composite coating /
- coating drag reduction /
- surface roughness

HTML全文

图 1 水下平板阻力测试实验系统

Figure 1. Underwater plate resistance test experimental system

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图 2 自抛光漆−PAM涂层

Figure 2. Self-polishing paint-PAM coating

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图 3 流速为0.8 m/s时涂层种类对减阻率的影响

Figure 3. Effect of coating type on DR when the flow velocity is 0.8 m/s

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图 4 流速对减阻率的影响

Figure 4. Effect of flow velocity on DR

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图 5 PAM/PEO浓度对减阻率的影响

Figure 5. Effect of PAM/PEO concentration on DR

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图 6 流速为0.8 m/s时PAM/PEO涂层在不同浓度下减阻率对比

Figure 6. DR of PAM/PEO coatings versus different concentrations when the flow velocity is 0.8 m/s

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图 7 PAM涂层表面粗糙度变化曲线

Figure 7. Surface roughness variation curves of PAM coating

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图 8 PEO涂层表面粗糙度变化曲线

Figure 8. Surface roughness variation curves of PEO coating

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