Preparation of protective coatings for the leading edge of wind turbine blades and investigation of their water droplet erosion behavior

doi:10.1016/j.wear.2024.205568

IMR OpenIR

	Preparation of protective coatings for the leading edge of wind turbine blades and investigation of their water droplet erosion behavior
	Zheng, Zilong 1; Sun, Haijing 1; Xue, Weihai 2; Duan, Deli 2; Chen, Guoliang 1; Zhou, Xin 1; Sun, Jie 1
通讯作者	Sun, Haijing(hjsun@sylu.edu.cn) ; Xue, Weihai(whxue@imr.ac.cn)
	2024-12-15
发表期刊	WEAR
ISSN	0043-1648
卷号	558 页码:15
摘要	The damage caused by rain droplet erosion to the leading edge of wind turbine blades is extremely severe. To reduce this issue, in this study, hydroxyl-terminated polybutadiene (HTPB) and isophorone diisocyanate (IPDI) were used as the polyurethane (PU) polyol and curing agent, respectively, to prepare a PU coating with a high resistance to water droplet erosion (WDE) for the protection of the leading edge of wind turbine blades. The effect of n (-NCO):n n (-OH) (R R-value, n is the molar ratio) on the mechanical properties and WDE resistance of PU coatings, the relationship between the two performances, and the influence of the erosion conditions on the WDE behavior were investigated for the first time. The results show the existence of a correlation between the mechanical properties (hardness, impact, flexibility, and tensile strength) and WDE resistance of the coating. While, a better abrasion resistance is found not to result in a better WDE resistance. The PU coating with an R-value of 1.2 shows an optimal WDE resistance in both atomization and jet erosion experiments. In atomized droplet erosion (ADE) experiments, the change in erosion velocity accelerates the incubation period of coating erosion damage and increases the erosion rate. In jet droplet erosion (JDE) experiments, the damage to the coating is closely related to the erosion angle, reaching a maximum at an impact angle of 60(degrees). Furthermore, in the ADE experiments, various erosion morphologies, such as pits, grooves, cracks, and stepped texture, are observed on the damaged coating surface. While, regarding the JDE experiments, holes, grooves, and cracks are observed. Such damage is caused by the combined effects of water hammer pressure, lateral jets, and local permeation.
关键词	Wind turbine blades Polyurethane coating Atomized droplet erosion Jet droplet erosion Damage mechanisms
资助者	General Project of Basic Scientific Research in Colleges and Universities of Liaoning Provincial Department of Education
DOI	10.1016/j.wear.2024.205568
收录类别	SCI
语种	英语
资助项目	General Project of Basic Scientific Research in Colleges and Universities of Liaoning Provincial Department of Education[LJKMZ2020098]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001315883700001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190015
专题	中国科学院金属研究所
通讯作者	Sun, Haijing; Xue, Weihai
作者单位	1.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Zilong,Sun, Haijing,Xue, Weihai,et al. Preparation of protective coatings for the leading edge of wind turbine blades and investigation of their water droplet erosion behavior[J]. WEAR,2024,558:15.
APA	Zheng, Zilong.,Sun, Haijing.,Xue, Weihai.,Duan, Deli.,Chen, Guoliang.,...&Sun, Jie.(2024).Preparation of protective coatings for the leading edge of wind turbine blades and investigation of their water droplet erosion behavior.WEAR,558,15.
MLA	Zheng, Zilong,et al."Preparation of protective coatings for the leading edge of wind turbine blades and investigation of their water droplet erosion behavior".WEAR 558(2024):15.