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    • 4. 发明申请
    • WIND TURBINE BLADE
    • 风力涡轮叶片
    • US20110097211A1
    • 2011-04-28
    • US12935236
    • 2009-03-30
    • Paul Rudling
    • Paul Rudling
    • F04D29/18
    • F03D1/065B32B27/08B32B27/18B32B27/20B32B27/30B32B27/304B32B27/308B32B27/322B32B27/40B32B2264/102B32B2270/00B32B2307/41B32B2307/514B32B2307/536B32B2307/558B32B2307/58B32B2307/712B32B2307/72B32B2307/724B32B2307/726B32B2603/00Y02E10/721Y02P70/523Y10T29/49336Y10T428/24942
    • A wind turbine blade is disclosed, at least 50% of the surface of which is covered with a self-adhesive, thermoplastic film. A method of manufacturing and repairing such a wind turbine blade is also disclosed. A two layer thermoplastic film suitable for covering the surface of a wind turbine blade is also disclosed. The film comprises a surface layer and a lower layer. The surface layer comprises 50% to 85% of polyvinylidene fluoride (PVDF), wherein up to 30% of the polyvinylidene fluoride may be replaced by hexafluoropropylene (HFP); and 10% to 45% polymethyl methacrylate (PMMA). The lower layer comprises 10% to 45% of a polyvinylidene fluoride (PVDF) polymer, wherein up to 30% of the polyvinylidene fluoride may be replaced by hexafluoropropylene (HFP); and 50% to 85% PMMA. Optionally the surface and/or lower layer comprises up to 8% UV stabilisers/absorbers; up to 10% matting agent; and up to 40% of an inorganic pigment. The film has an initial gloss of less than 30% when measured with a reflectometer at a angle of 60 degrees.
    • 公开了一种风力涡轮机叶片,其表面的至少50%用自粘合的热塑性薄膜覆盖。 还公开了一种制造和修理这种风力涡轮机叶片的方法。 还公开了适用于覆盖风力涡轮机叶片表面的双层热塑性薄膜。 该膜包括表面层和下层。 表面层包含50%至85%的聚偏二氟乙烯(PVDF),其中至多30%的聚偏二氟乙烯可以被六氟丙烯(HFP)代替; 和10%至45%的聚甲基丙烯酸甲酯(PMMA)。 下层包含10%至45%的聚偏二氟乙烯(PVDF)聚合物,其中至多30%的聚偏二氟乙烯可以被六氟丙烯(HFP)代替; 和50%至85%的PMMA。 任选地,表面和/或下层包含高达8%的UV稳定剂/吸收剂; 高达10%消光剂; 和高达40%的无机颜料。 当用反射计以60度的角度测量时,该胶片的初始光泽度小于30%。