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Preparation method and application of PTFE and polyester-based composite film for preventing wind turbine blades from icing

A technology of polyester composite film and wind power blades, which is applied in the direction of chemical instruments and methods, adhesive additives, synthetic resin layered products, etc., can solve the problems that PTFE films cannot be firmly bonded to wind power blades, and achieve excellent UV resistance and complex The performance of the climate, the expansion of the selection range, and the effect of improving the service life

Active Publication Date: 2017-01-11
NANJING HAOHUI HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The technical problem to be solved by the present invention is: aiming at the technical problem that the PTFE film cannot be directly and firmly bonded on the surface of the wind power blade, so as to facilitate the technical transformation of the wind power blade installed in the wind farm to achieve the effect of anti-icing, and it is also suitable for The use of new blades improves the power generation capacity and power generation efficiency of wind turbines in winter by increasing the anti-icing function of wind turbine blades

Method used

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  • Preparation method and application of PTFE and polyester-based composite film for preventing wind turbine blades from icing
  • Preparation method and application of PTFE and polyester-based composite film for preventing wind turbine blades from icing

Examples

Experimental program
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Effect test

Embodiment 1

[0052] This embodiment is a preparation method for anti-icing of wind power blades based on PTFE and polyester composite film. The process is as follows figure 1 shown, including the following steps:

[0053] On the hot-press laminating machine, the polyester fabric B is coated with the adhesive compound C, and then hot-pressed and laminated with the PTFE-based film A at the same time. mm. The bonding compound consists of 45.0 Kg 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate, 5.0 Kg urethane, 5.0 Kg α-linolenic acid, 2.0 Kg (4) ethoxylated bisphenol A dimethacrylate, 1.5 Kg benzoyl peroxide and 41.5 Kg vinyl acetate are composed, stirred evenly at room temperature. A composite membrane based on PTFE membrane / polyester fabric was prepared.

[0054] Then, on the PTFE-based membrane based on the PTFE membrane / polyester fabric composite material, the interface glue D was sprayed, and after spraying, it was dried at 100°C to obtain the [interface glue-based on PTFE mem...

Embodiment 2

[0057] This embodiment is a preparation method for anti-icing of wind power blades based on PTFE and polyester composite film. The process is as follows figure 1 shown, including the following steps:

[0058] On the hot-press laminating machine, the polyester fabric B is coated with the adhesive compound C, and then hot-pressed and laminated with the PTFE film A at the same time. The hot-press laminating temperature is 170°C, the time is 1.2min, and the line pressure is 1.0 Kg / mm . Adhesive compound 55.0 Kg 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate, 8.0 Kg urethane, 3.0 Kg α-linolenic acid, 4.0 Kg (4) ethoxylated bisphenol A dimethacrylate, 2.0 Kg of benzoyl peroxide and 28.0 Kg of vinyl acetate, stirred evenly at room temperature. A PTFE membrane / polyester fabric composite membrane was prepared.

[0059]Then, on the PTFE-based membrane based on the PTFE membrane / polyester fabric composite material, the interface glue D was sprayed, and after spraying, it was ...

Embodiment 3

[0062] This embodiment is a preparation method for anti-icing of wind power blades based on PTFE and polyester composite film. The process is as follows figure 1 shown, including the following steps:

[0063] On the hot-press laminating machine, the polyester fabric B is coated with the adhesive compound C, and then hot-pressed and laminated with the PTFE-based film A at the same time. mm. The bonding compound consists of 50.0 Kg 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate, 6.5 Kg urethane, 4.0 Kg α-linolenic acid, 3.0Kg (4) ethoxylated bis Phenol A dimethacrylate, 1.6 Kg benzoyl peroxide, 34.9 Kg vinyl acetate, stirred evenly at room temperature. A composite membrane based on PTFE membrane / polyester fabric was prepared.

[0064] Then, on the PTFE-based membrane based on the PTFE membrane / polyester fabric composite material, spray the interface glue D, and dry it at 95°C after spraying to prepare the [interface glue-based on PTFE membrane-polyester fabric] compo...

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Abstract

The invention discloses a preparation method and application of a PTFE and polyester-based composite film for preventing wind turbine blades from icing. The method includes the steps that a bonding composite agent is adopted for lamination complexing, an interface adhesive is applied, and a pressure-sensitive adhesive is adopted for photo-initiated pressure-sensitive adhesive application. The bonding complexing agent is prepared from 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate, vinyl acetate, ethyl carbamate, alpha-linolenic acid, benzoyl peroxide and (4)ethoxylated bisphenol A dimethacrylate; the photo-initiated pressure-sensitive adhesive is prepared from a poly[butyl acrylate-glycidyl methacrylate-n-butoxy methacrylamide]copolymer, butyl acrylate, (4)ethoxylated bisphenol A dimethacrylate, 4,4'-bis(diethylamino)benzophenone and dimethylformamide. The method and the composite film solve the non-adhesion technical problem that a PTFE film can not be pasted on the surfaces of wind turbine blades with an adhesive directly, the bonding peel strength is improved, and the composite film is suitable for wind turbine blades of various models.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and specifically relates to a preparation method and application of a composite film based on PTFE and polyester for anti-icing of wind power blades, and is especially suitable for the technical transformation of wind power blades that have been operating in wind farms. It is also suitable for the application of new blades, improving the anti-icing function of wind turbine blades. Background technique [0002] Wind power generation is a sustainable and clean energy source, but when winter comes, the surface of wind power blades will be covered with ice due to the continuous low temperature and supercooled humid air, rain, ice and snow in high altitude areas or mountainous areas. Icing will cause wind turbines to stop running, unable to generate electricity normally, and cause a lot of economic losses. [0003] Nordex, a professional manufacturer of German blades, conducted a climate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/32B32B27/36B32B37/06B32B37/10B32B37/12C09J4/00C09J11/06C09J4/06C09D133/00
CPCB32B5/02B32B27/12B32B27/322B32B37/06B32B37/10B32B37/12B32B2262/0276C09D133/00C09J4/00C09J4/06C09J11/06C08F218/08C08F261/06
Inventor 孙志禹吴建华朱亚伟
Owner NANJING HAOHUI HI TECH CO LTD
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