The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2024
Filed:
Dec. 15, 2020
China Three Gorges Corporation, Beijing, CN;
China Three Gorges Renewables (Group) Co., Ltd., Beijing, CN;
Nanjing Haohui HI Tech Co., Ltd., Jiangsu, CN;
Xin Xiang, Beijing, CN;
Jianping Liu, Beijing, CN;
Jianhua Wu, Jiangsu, CN;
Zhiyu Sun, Beijing, CN;
Yawei Zhu, Jiangsu, CN;
Wenwei Li, Beijing, CN;
Fangliang Zhao, Beijing, CN;
Hong Wu, Jiangsu, CN;
Jingxin Zhao, Jiangsu, CN;
Bo Pang, Beijing, CN;
Jianping Wu, Jiangsu, CN;
Abstract
A preparation method of a polytetrafluoroethylene (PTFE)-based membrane for preventing and removing ices covering wind turbine blades is provided and the method comprises: preparing a membrane into a PTFE rod material with polymerized monomers by using monomer polymerization methods such as blending, pre-compressing and pushing; making the membrane into a PTFE-based homogeneous membrane with micropores and nano and micron scale concave-convex geometrical ultra-structure morphologies under the condition that the membrane is cracked to generate a laminar exfoliated fabric-like structure in the hot calendaring process of the PTFE rod material by using a hot calendaring and fusion polymerization method; and applying the PTFE-based homogeneous membrane to blades of a large wind turbine in operation.