Preparation method and application of nano-modified PTFE and polyester-based composite film for preventing fan blades from icing

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, achieve excellent UV resistance and complex climate performance, facilitate engineering construction, and expand the selection range Effect

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

[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-based composite film for preventing fan blades from icing
  • Preparation method and application of nano-modified PTFE and polyester-based composite film for preventing fan blades from icing

Examples

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Embodiment 1

[0055] This embodiment is a preparation method of nano-modified PTFE and polyester-based composite film for preventing ice coating of fan blades. The process is as follows figure 1 shown, including the following steps:

[0056] First, spray the nanomaterial B solution on the front surface of the PTFE membrane A on the spraying hot press, dry at 90°C, and then undergo thermomechanical rolling. The mechanical rolling is roller rolling, and the line pressure is 2.0 Kg / mm. , the rolling temperature was 170 °C, and the time was 1.2 min. The nanomaterial modified PTFE membrane was prepared. The nanomaterial solution consisted of 3.0 Kg antimony-doped tin oxide nanocrystals, 3.0 Kg nano-titania, 5.0 Kg nano-silicon carbide, 2.0 Kg pentaerythritol tris-(3-aziridinyl)-propionate and 87.0 Kg AG-710, Stir well at room temperature to prepare a nanomaterial solution.

[0057] Secondly, on the hot-pressing compounding machine, under the action of the bonding compound C and hot-pressing, ...

Embodiment 2

[0061] This embodiment is a method for preparing a nano-modified PTFE and polyester-based composite film for anti-icing of fan blades. The process is as follows figure 1 shown, including the following steps:

[0062] First, on the spraying hot press, spray the nanomaterial B solution on the surface of the PTFE membrane A, dry it at 95°C, and then undergo thermomechanical rolling treatment. The mechanical rolling is roller rolling, and the line pressure is 2.5 Kg / mm , the rolling temperature is 165°C, and the time is 1.5min. A nanomaterial-modified PTFE membrane is prepared. The nanomaterial solution consists of 4.0 Kg antimony-doped tin oxide nanocrystals, 3.5 Kg nano-titanium dioxide, 4.5 Kg nano-silicon carbide, 2.5 Kg pentaerythritol tris-(3-aziridinyl)-propionate and 85.5 Kg AG-710, Stir evenly at room temperature to prepare a nanomaterial solution.

[0063] Secondly, on the hot-press laminating machine, under the action of the bonding compound agent C and hot pressing,...

Embodiment 3

[0067] This embodiment is a method for preparing a nano-modified PTFE and polyester-based composite film for anti-icing of fan blades. The process is as follows figure 1 shown, including the following steps:

[0068] First, on the spraying hot press, spray the nanomaterial B solution on the front of the PTFE membrane A surface, dry it at 100°C, and then undergo thermomechanical rolling treatment. The mechanical rolling is roller rolling, and the line pressure is 2.5 Kg / mm , the rolling temperature is 180°C, and the time is 1.0min. A nanomaterial-modified PTFE membrane is prepared. The nanomaterial solution consisted of 3.5 Kg antimony-doped tin oxide nanocrystals, 3.5 Kg nano-titanium dioxide, 4.0 Kg nano-silicon carbide, 2.2 Kg pentaerythritol tris-(3-aziridinyl)-propionate and 86.8 Kg AG-710, Stir evenly at room temperature to prepare a nanomaterial solution.

[0069] Secondly, on the hot-press laminating machine, under the action of the bonding compound agent C and hot p...

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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 in particular relates to a preparation method and application of a nano-modified PTFE and polyester-based composite membrane suitable for preventing ice-covering of fan blades, suitable for the application of new blades of fans, and especially suitable for installed fans The technical transformation of the blade improves the anti-icing function of the fan blade. Background technique [0002] Wind power generation is a sustainable and clean energy source, but when winter comes, the surface of the fan blades will be covered with ice due to the continuous low temperature and super-cold humid air, rain, ice and snow in high altitude or mountainous areas. Serious icing will cause the wind turbine to stop running, unable to generate electricity normally, resulting in a lot of economic losses. [0003] Nordex (Ende), a professional German blade manufacturer, has conducted a climate surv...

Claims

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Application Information

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Patent Type & Authority Applications(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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