罗彤彤,汪涛,项伟,杨蒙蒙.风电叶片水性复合涂层疏水、抗冲蚀与抗结冰性能探究[J].表面技术,2021,50(9):141-151.
LUO Tong-tong,WANG Tao,XIANG Wei,YANG Meng-meng.Hydrophobic, Anti-erosion and Anti-icing Properties of Water-based Composite Coating for Wind Turbine Blades[J].Surface Technology,2021,50(9):141-151
风电叶片水性复合涂层疏水、抗冲蚀与抗结冰性能探究
Hydrophobic, Anti-erosion and Anti-icing Properties of Water-based Composite Coating for Wind Turbine Blades
投稿时间:2020-11-25  修订日期:2021-01-26
DOI:10.16490/j.cnki.issn.1001-3660.2021.09.014
中文关键词:  风电叶片  水性  复合涂层  气固冲蚀  疏水  抗冲蚀  抗结冰
英文关键词:wind turbine blades  water-based  composite coating  gas-solid erosion  hydrophobic  anti-erosion  anti-icing
基金项目:中国国际科技合作重点项目(2018YFE0194100)
作者单位
罗彤彤 南京航空航天大学 材料科学与技术学院,南京 211106 
汪涛 南京航空航天大学 材料科学与技术学院,南京 211106 
项伟 南京航空航天大学 材料科学与技术学院,南京 211106 
杨蒙蒙 南京航空航天大学 材料科学与技术学院,南京 211106 
AuthorInstitution
LUO Tong-tong College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China 
WANG Tao College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China 
XIANG Wei College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China 
YANG Meng-meng College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China 
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中文摘要:
      目的 以水性FEVE氟碳树脂为主要成膜物质,TiO2、SiO2与AlN微纳复合颗粒作为颜填料,制备一种适用于风电叶片上的具有疏水、抗冲蚀与抗结冰性能的环保型水性氟碳涂层。方法 利用透射电子显微镜(TEM)、场发射扫描电子显微镜(FESEM)、激光扫描共聚焦显微镜(LSCM)及接触角测量仪等,讨论加入不同成分颜填料改性后对涂层疏水性能的影响,并分析加入硬质陶瓷AlN颗粒后,涂层抗冲蚀性能及抗结冰性能的变化。结果 经氟硅烷改性后,纳米TiO2的分散性能、疏水性能及成膜性能都有所提高。涂层在经过微纳颗粒复合改性后,其外观平整,并具有良好的疏水性能,接触角提升至140°左右。在模拟风沙环境的气-固冲蚀过程中可以发现,AlN质量分数为4%时,涂层具有最佳的抗冲蚀性能,在冲蚀过程中,涂层无明显剥落,且疏水性能稳定,接触角提升并稳定在150°以上,出现了一种冲蚀激发的疏水性提高现象,表现出优异的抗冲蚀性能和机械耐久性。此外,改性复合涂层在模拟结冰过程中,其结冰时间在–10 ℃达到1601.4 s,冰层附着力仅有76 kPa,并且在更低温的条件下也表现出良好的抗结冰性能。结论 所制水性复合涂层具有良好的疏水性、抗冲蚀性及抗结冰性,符合风电叶片在风沙及冰冻等环境下的使用要求,为新型风电叶片防护涂料的发展提供了一定的可行性研究。
英文摘要:
      An environmental-friendly water-based coating with hydrophobic, anti-erosion and anti-icing properties for fiberglass reinforced plastic (FRP) of wind turbine blades was prepared by incorporating TiO2/SiO2/AlN fillers into the waterborne FEVE fluorocarbon resin. The surface functionalization was characterized by transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), laser scanning confocal microscope (LSCM) and contact angle goniometer. The influence of different pigments and fillers on the hydrophobicity of the composite coating was discussed, and the change of the anti-erosion and anti-icing properties of the composite coating was also analyzed. The results showed that nano-TiO2 was successfully coated with fluoroalkyl silane, resulting in the improved dispersion and hydrophobicity of the nanoparticles. After the modification of micro/nano-fillers, the composite coating has the smooth appearance and good hydrophobic property, the contact angle (CA) is increased to about 140°. Furthermore, the addition of AlN particles can effectively affect the erosion resistance of coatings, and the coating with 4 wt.% AlN has the best performance. In the process of simulating wind-sand (gas-solid) erosion, the modified composite coating has no obvious peeling off, the CA is improved and stabilized above 150°, resulting in a phenomenon of hydrophobicity induced by erosion, which shows excellent anti-erosion performance and mechanical durability. Additionally, during the simulated freezing process, the freezing time of the modified composite coating reached 1601.4 s at –10 ℃, and the ice adhesion force was only 76 kPa, exhibiting excellent ice delay performance and low ice adhesion. Moreover, the modified composite coating also showed good anti-icing performance under lower temperature conditions. The water-based composite coating meets the application requirements of sandstorm and freezing environment, effectively improve the service life of wind turbine blades and reduce the maintenance cost, which provides a certain feasibility study for the development of a new type of wind turbine blades protective coating.
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