风力发电机叶片防除冰涂层(一):制备及性能测试  

Anti-Icing Coatings for Wind Turbine Blades Part 1:Preparation and Performance Testing

作　　者：胡琴[1] 朱茂林[1,2] 舒立春 蒋兴良[1] 李超[1] Hu Qin;Zhu Maolin;Shu Lichun;Jiang Xingliang;Li Chao(Xuefeng Mountain Energy Equipment Safety National Observation and Research Station of Chongqing University,Chongqing 400044 China;Hangzhou Yuhang District Power Supply Company State Grid Zhejiang Electric Power Co.Ltd,Hangzhou 311199 China)

机构地区：[1]重庆大学雪峰山能源装备安全国家野外科学观测研究站,重庆400044 [2]国网浙江省电力有限公司杭州市余杭区供电公司,杭州311199

出　　处：《电工技术学报》2023年第24期6839-6849,共11页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51977016);重庆市科技局(cstc2021jscx-dxwtB0002)资助项目。

摘　　要：风力发电机叶片覆冰会对风电场安全运行造成严重威胁,使发电量遭受损失。超疏水涂层防除冰由于实施方便、成本较低,受到风电运行部门青睐,但由于涂层的耐磨、耐候性能差,防冰效果有限,制约了其在风力发电机叶片上的应用。该文提出了一种耐磨、耐候性能良好且具备导电能力的超疏水涂层制备方法,可实现“电加热+超疏水”协同作用,极大地提高了防除冰效果。制备的导电超疏水涂层静态接触角达到151°~162°,滚动角为4.3°~7.6°,电导率为0.5~12.5 S/m。耐磨性能测试表明,涂层耐磨性能满足复杂环境对超疏水涂层的要求;耐紫外老化、耐酸碱等耐候性能测试表明,涂层具有较好的耐候性能;对涂层进行覆冰粘结强度测试发现,其覆冰横向粘结强度小于38.4 kPa;从覆冰环境涂层耐久性测试发现,覆冰时长的增加和“覆冰-脱冰”循环会使涂层滚动角大幅上升,覆冰对涂层表面微观结构造成破坏,导致涂层超疏水性能下降。Ice coating on wind turbine blades poses a serious threat to the operation safety of wind farms,resulting in loss of power generation.The super hydrophobic coating is favored by the wind power operation department due to its convenient implementation and low cost,but its application in wind turbine blades is restricted due to its poor wear and weather resistance and limited anti icing effect.This paper proposed a preparation method of superhydrophobic coating with good wear and weather resistance and conductivity,which can realize the synergistic effect of"electric heating+superhydrophobic"and greatly improve the effect of anti icing and deicing.Carbon nanotubes are oxidized and inorganic substances are added to make them have better dispersibility in anhydrous ethanol solution.Cetyltrimethoxysilane is used to modify nanoparticles with low surface energy.Fluorocarbon resin is the most primer.Electrothermal superhydrophobic coatings are prepared by precipitation method.The hydrophobic property,electrothermal property and durability of the prepared coating were tested,and the test results are as follows:When the mass fraction of carbon nanotubes is 16.8%,it is because the content of carbon nanotubes increases and the dispersion is not uniform enough,and the static contact angle is 148°.When the mass fraction of carbon nanotubes is 13.2%,9.3%,9%,7.7%and 7%,the static contact angle of the coating is 151°~162°,and the sliding angle is 4.3°~7.6°.The square resistance test results show that the conductivity of the coating is 0.5~12.5 S/m,and the conductivity of the coating decreases with the decrease of the content of carbon nanotubes in the coating.The wear resistance test shows that the wear amount of the coating is very small after 160 times of wear,the conductivity decreases from 0.50 S/m to 0.48 S/m,the value basically remains unchanged,the contact angle is stable at about 158°,and the sliding angle is smaller than 5°.After 120 h UV aging,the static contact angle of the coating basically remained unchanged,a

关 键 词：风力发电机叶片 超疏水 导电 防覆冰 “覆冰-脱冰”循环试验 

分 类 号：TM242[一般工业技术—材料科学与工程]