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A kind of high elastic matching wind turbine blade anti-corrosion coating

A technology for wind turbines and anti-corrosion coatings, applied in the field of coatings, can solve problems such as wind turbine blade bumps, insufficient toughness, peeling topcoat coating, etc., achieve good anti-fatigue performance, save maintenance costs, and save installation costs Effect

Active Publication Date: 2015-10-21
NANJING CHANGJIANG PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because the length of the blades required by high-power wind turbines is often more than 50m, it is easy to cause serious bumps when the painted wind turbine blades are transported from the blade coating workshop to the wind farm. High demands are placed on the fatigue resistance of the blade surface coating
When the toughness of the primer coating in the surface coating of the blade does not have a good match, the primer coating is generally not tough enough, causing the primer coating to break first, thus causing the primer coating to fall off from the blade surface As well as the joint fracture of the topcoat coating, the blades need to be repaired after being transported to the wind farm, thus increasing the maintenance cost and installation cost of the wind power generation equipment

Method used

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  • A kind of high elastic matching wind turbine blade anti-corrosion coating
  • A kind of high elastic matching wind turbine blade anti-corrosion coating
  • A kind of high elastic matching wind turbine blade anti-corrosion coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This epoxy primer uses a linear single epoxy-based reactive diluent as a modifier, and its mass content ratio is:

[0024]

[0025] Its process is:

[0026] (1) Primer component 1: Mix epoxy resin with pigment, add AGE and xylene diluent and stir at high speed, then grind, the grinding fineness should be ≤40μm, then add talcum powder, stir at high speed, the fineness is the same Requirements ≤40μm.

[0027] (2) Add the polyamide curing agent into the prepared epoxy primer component 1, stir evenly, and finally paint or spray on the surface of the blade, and then cure.

[0028] Embodiment Acrylic polyurethane topcoat adopts butyl acetate and propylene glycol methyl ether acetate as diluent, and elastic HDI trimer isocyanate is as curing agent, and its proportioning (mass content) is:

[0029]

[0030] Its process is:

[0031] (1) Topcoat component 1: Stir the acrylic resin, diluent, and titanium dioxide at a high speed, and then grind it. The grinding fineness sh...

Embodiment 2

[0034] This epoxy primer uses a linear single epoxy-based reactive diluent as a modifier, and its mass content ratio is:

[0035]

[0036] Its process is:

[0037] (1) Primer component 1: Mix epoxy resin and pigment, add BGE and xylene diluent and stir at high speed, then grind, the grinding fineness should be ≤40μm, then add talcum powder, stir at high speed, the fineness is the same Requirements ≤40μm.

[0038] (2) Add the phenalkamine curing agent into the prepared epoxy primer component 1, stir evenly, and finally paint or spray on the surface of the blade, and then cure.

[0039] Embodiment Acrylic polyurethane topcoat adopts butyl acetate and propylene glycol methyl ether acetate as diluent, and elastic HDI trimer isocyanate is as curing agent, and its proportioning (mass content) is:

[0040]

[0041] Its process is:

[0042] (3) Finishing paint component 1: acrylic resin, diluent, and titanium dioxide are stirred at high speed, and then ground, and the grindin...

Embodiment 3

[0045] This epoxy primer uses a linear single epoxy-based reactive diluent as a modifier, and its mass content ratio is:

[0046]

[0047]

[0048] Its process is:

[0049] (1) Primer component 1: Mix epoxy resin and pigment, add BGE and xylene diluent and stir at high speed, then grind, the grinding fineness should be ≤40μm, then add talcum powder, stir at high speed, the fineness is the same Requirements ≤40μm.

[0050] (2) Add the cycloaliphatic amine curing agent into the prepared epoxy primer component 1, stir evenly, and finally paint or spray on the surface of the blade, and then cure.

[0051] Embodiment Acrylic polyurethane topcoat adopts butyl acetate and propylene glycol methyl ether acetate as diluent, and elastic HDI trimer isocyanate is as curing agent, and its proportioning (mass content) is:

[0052]

[0053] Its process is:

[0054] (5) Topcoat component 1: acrylic resin, diluent, and titanium dioxide are stirred at high speed to be uniform, and th...

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Abstract

The invention discloses a high-flexible matching property anticorrosive coating for a blade of a wind driven generator. The high-flexible matching property anticorrosive coating comprises a priming paint with epoxy resin as a base material and a finishing paint with high-flexibility acrylic resin as a base material, wherein the priming paint comprises the following components in percent by weight: 40-50 percent of epoxy resin, 5-15 percent of linear toughening modifier, 8-15 percent of pigment, 15-20 percent of functional filler, 5-20 percent of diluting agent and 5-15 percent of curing agent; and the finishing paint comprises the following components in percent by weight: 50-65 percent of acrylic resin, 15-25 percent of titanium white, 8-15 percent of diluting agent and 5-10 percent of weather-resistant curing agent. According to the high-flexible matching property anticorrosive coating, by using excellent flexibility of the priming paint and the finishing paint and the excellent flexible matching between the priming paint and the finishing paint, the coating for the blade of the wind driven generator has a better anti-fatigue property.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to an anti-corrosion coating for blades of wind power generators with high elasticity matching. Background technique [0002] Because the length of the blades required by high-power wind turbines is often more than 50m, it is easy to cause serious bumps when the painted wind turbine blades are transported from the blade coating workshop to the wind farm. The fatigue resistance of the blade surface coating puts forward high requirements. When the toughness of the primer coating in the surface coating of the blade does not have a good match, the primer coating is generally not tough enough, causing the primer coating to break first, thus causing the primer coating to fall off from the blade surface As well as the joint fracture of the finish paint coating, the blades need to be repaired after being transported to the wind farm, thereby increasing the maintenance cost and installat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D133/00C09D7/12C09D5/08B05D1/36
Inventor 张卫中刘保磊
Owner NANJING CHANGJIANG PAINT
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