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Protecting film for blade of wind power generator

A wind turbine, protective film technology, applied in wind turbine components, wind turbines, wind power generation and other directions, can solve problems such as appearance defects, surface dirt, power conversion efficiency decline, etc., and achieve good repellency and good adhesion. sexual effect

Inactive Publication Date: 2011-03-30
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the blades are often exposed to this harsh natural environment, long-term use will cause troubles such as breakage, deformation, surface dirt, surface separation, etc.
When such trouble occurs, the power conversion efficiency drops, and also causes a problem of appearance defects
However, because the blades used for wind power generation are very large, they cannot be easily repaired

Method used

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  • Protecting film for blade of wind power generator
  • Protecting film for blade of wind power generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0186] A protective film for blades having the following layered structure was prepared.

[0187] Layer structure: fluorine coating (surface treatment) / acrylic-urethane composite film or sheet (substrate) / HYPERJOINT H9008 (pressure-sensitive adhesive layer)

[0188] Manufacturing method

[0189] 1. Preparation of acrylic acid-urethane composite film composition (step 1)

[0190] Acrylic acid (AA) (13.74 parts), isobornyl acrylate (IBXA) (97.52 parts) and n-butyl acrylate (BA) were charged as acrylic monomers into a reaction vessel equipped with a condenser, thermometer and stirring device (26.10 parts), and polyoxytetramethylene glycol (PTMG) (number average molecular weight: 650, manufactured by Mitsubishi Chemical Co., Ltd.) (100 parts) as a polyol, and hydrogenated Xylyl diisocyanate (37.36 parts, TAKENATE 600 (H6XDI), manufactured by Mitsui Chemicals, Ltd.). The mixture was reacted at 65° C. for 12 hours, 4-hydroxybutyl acrylate (4-HBA) (5.55 parts) was added, and the m...

Embodiment 2

[0199] A protective film for blades having the following configuration was prepared.

[0200] Layer structure: Fluorine coating (surface treatment) / PET film (substrate) / HYPERJOINT H9008 (pressure-sensitive adhesive layer)

[0201] Manufacturing method

[0202] The same fluorine coating treatment agent as in Example 1 was applied to one surface of a PET film (trade name: X10S, manufactured by Toray Co., Ltd., thickness 188 μm), and dried and cured at 140° C. to form a 10 μm thick Alternating copolymer layers of fluoroethylene vinyl ether. Also, a double-sided pressure-sensitive adhesive tape (trade name: HYPERJOINT H9008, manufactured by Nitto Denko Co., Ltd., thickness: 800 μm) was adhered to the other surface of the PET film to provide a protective film for blades.

Embodiment 3

[0204] A protective film for blades having the following configuration was prepared.

[0205] Layer structure: PTFE film (substrate) / HYPERJOINT H9008 (pressure-sensitive adhesive layer)

[0206] Manufacturing method

[0207] A double-sided pressure-sensitive adhesive tape (trade name: HYPERJOINT H9008, manufactured by Nitto Denko Co., Ltd., thickness: 800 μm) was adhered to a polytetrafluoroethylene (tetrafluoroethylene, PTFE) film (thickness: 85 μm, commercial Name: NTF-1122, manufactured by Nitto Denko Co., Ltd.) on one surface, thereby providing a protective film for the blade.

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Abstract

The present invention relates to a protection film for a blade of a wind power generator, to be adhered to the blade surface of the wind power generator. The protection film has a substrate and a pressure-sensitive adhesive layer on one surface of the substrate. The film has good weather resistance and can prevent blades from deterioration. The invention also relates to a method for protecting the blade of the wind power generator, including adhering the protection film to the blade surface. The invention further relates to the blade for the wind power generator, having the surface covered by the protection film. The invention also relates to the wind power generator, having the blade.

Description

technical field [0001] The invention relates to a blade for a wind power generator, a protective film and a wind power generator having such a blade, wherein the blade is protected by a protective film with a layer of pressure-sensitive adhesive. Background technique [0002] The airfoils (hereinafter referred to as blades) of the wind generator rotate in the air flow, which is a fluid, and convert the rotational energy into electrical energy. In order to rotate efficiently while receiving a flow of fluid, it is important to reduce the weight of the blades to reduce inertial forces. In addition, since many blades used for wind power generators exceed 50 m in overall length, reduction in weight of the blades leads to downsizing and weight reduction of the generator itself. Also, in order to efficiently convert the flow of fluid into the rotational motion of the blades, proper design of the shape and maintenance of the shape of the blades, as well as the smoothness of the sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J133/00B32B37/12F03D11/00B31B50/62C09J7/22
CPCB29C63/0017C09J7/0217B29L2031/082C09J2433/00C09J2475/006F03D1/0675C09J7/0264Y02E10/721F05B2230/90F03D1/065B29C63/02C09J2433/006C09J7/385C09J7/22Y10T428/28Y10T156/10Y10T428/2891Y10T428/249983Y10T428/31565Y10T428/3154Y02E10/72Y02P70/50
Inventor 渡边博之玉井弘宣桶结卓司
Owner NITTO DENKO CORP