Preparation method and application of nano-modified PTFE and polyester composite film for anti-icing of wind turbine blades

A technology of nano-modification and fan blades, which is applied in the field of composite membranes, can solve the problems that nano-modified PTFE membranes cannot be firmly composited with fan blades, and achieve good film-forming properties and durability, expanded selection range, and high peel strength.

Active Publication Date: 2018-01-16
NANJING HAOHUI HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The technical problem to be solved by the present invention is: the technical problem that the nano-modified PTFE film cannot be firmly compounded on the surface of the fan blade, so as to facilitate the transformation of the fan blade in operation in the wind farm, and is also suitable for the use of new blades, so that the fan blade has Anti-icing function, thereby improving the ability of wind turbines to generate electricity in winter

Method used

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  • Preparation method and application of nano-modified PTFE and polyester composite film for anti-icing of wind turbine blades

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] This embodiment is a method for preparing a nano-modified PTFE and polyester-based composite membrane used to prevent icing on fan blades, including the following steps:

[0054] First, on the spraying hot press, the front side of the PTFE membrane surface is sprayed with a nanomaterial solution, dried at 90°C and then subjected to thermomechanical rolling. The mechanical rolling is roller rolling, and the line pressure is 2.0Kg / mm. The pressing temperature is 170°C and the time is 1.2 min. A nanomaterial-modified PTFE membrane is prepared. The nanomaterial solution consists of 3.0Kg antimony-doped tin oxide nanocrystals, 3.0Kg nano-titanium dioxide, 5.0Kg nano-silicon carbide, 2.0Kg pentaerythritol tris-(3-aziridinyl)-propionate and 87.0Kg AG-710, Stir evenly at room temperature to prepare a nanomaterial solution.

[0055] Secondly, on the hot-pressing laminating machine, under the action of adhesive compounding agent and hot pressing, the reverse side of the nano-ma...

Embodiment 2

[0059] This embodiment is a method for preparing a nano-modified PTFE and polyester-based composite membrane used to prevent icing on fan blades, including the following steps:

[0060] First, on the spraying hot press, the front side of the PTFE membrane surface is sprayed with a nanomaterial solution, dried at 95°C and then subjected to thermomechanical rolling. The mechanical rolling is roller rolling, and the line pressure is 2.5Kg / mm. The pressing temperature was 165° C. and the pressing time was 1.5 min. A nanomaterial-modified PTFE membrane is prepared. The nanomaterial solution consists of 4.0Kg antimony-doped tin oxide nanocrystals, 3.5Kg nano-titanium dioxide, 4.5Kg nano-silicon carbide, 2.5Kg pentaerythritol tris-(3-aziridinyl)-propionate and 85.5Kg AG-710, Stir evenly at room temperature to prepare a nanomaterial solution.

[0061] Secondly, on the hot-press laminating machine, under the action of bonding compound agent and hot pressing, the reverse side of the n...

Embodiment 3

[0065] This embodiment is a method for preparing a nano-modified PTFE and polyester-based composite membrane used to prevent icing on fan blades, including the following steps:

[0066] First, on the spraying hot press, the front side of the PTFE membrane surface is sprayed with nano-material solution, dried at 100°C, and then subjected to thermomechanical rolling. The mechanical rolling is roller rolling, and the line pressure is 2.5Kg / mm. The pressing temperature is 180° C. and the pressing time is 1.0 min. A nanomaterial-modified PTFE membrane is prepared. The nanomaterial solution consists of 3.5Kg antimony-doped tin oxide nanocrystals, 3.5Kg nano-titanium dioxide, 4.0Kg nano-silicon carbide, 2.2Kg pentaerythritol tris-(3-aziridinyl)-propionate and 86.8Kg AG-710, Stir evenly at room temperature to prepare a nanomaterial solution.

[0067] Secondly, on the hot-press laminating machine, under the action of the bonding compound agent and hot pressing, the reverse side of th...

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Abstract

The invention provides a preparation method and application of a nano-modified PTFE and polyester-based composite film for preventing fan blades from icing. The method includes the steps of PTFE film modification, lamination complexing and photo-crosslinked adhesive application. A modifier is prepared from antimony-doped tin oxide nano-crystals, nano-titanium dioxide, nano-silicon carbide, an organic fluorine waterproofing agent and pentaerythritol tri-(3-aziridinyl)-propionate; in lamination complexing, a bonding complexing agent is prepared from 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate, vinyl acetate, ethyl carbamate, alpha-linolenic acid, (2)ethoxylated bisphenol A dimethacrylate, trimethylolpropane triacrylate and benzoyl peroxide; a photo-crosslinked adhesive is prepared from a poly[butyl acrylate-glycidyl methacrylate-n-butoxy methacrylamide]copolymer, vinyl acetate, butyl acrylate, an acrylate derivative, a photoinitiator and dimethylformamide. The method and the composite film solve the non-adhesion problem that a PTFE film can not be pasted on the surfaces of fan blades with an adhesive directly.

Description

technical field [0001] The invention belongs to the technical field of composite membranes, and specifically relates to a preparation method and application of nano-modified PTFE and polyester-based composite membranes suitable for anti-icing of wind turbine blades, suitable for the application of new wind turbine blades, especially suitable for installed wind turbines The technical transformation of the blades improves the anti-icing function of the fan blades. Background technique [0002] Wind power is a sustainable and clean energy source, but when winter comes, due to the continuous low temperature and supercooled humid air, rain, ice and snow in high-altitude areas or mountainous areas, the surface of the fan blades will be covered with ice. Severe 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 survey in Europ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/32B32B27/36B32B27/08B32B7/12B32B37/12B32B37/06B32B37/10C09J4/06C09J4/02C09D133/00F03D80/40
CPCB32B7/12B32B27/08B32B27/12B32B27/322B32B27/36B32B37/06B32B37/10B32B37/12B32B2037/243B32B2250/246B32B2255/10B32B2255/20B32B2262/0276B32B2307/21B32B2307/304B32B2307/554B32B2307/71B32B2307/712B32B2307/7145B32B2307/73B32B2457/00C09D133/00C09J4/00C09J4/06Y02E10/72
Inventor 孙志禹吴建华朱亚伟
Owner NANJING HAOHUI HI TECH CO LTD
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