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Putty for repairing aerogenerator blade and preparation method therefore

A wind power generation blade and putty technology, applied in the direction of filling slurry, etc., can solve the problems of low impact resistance, low urethane bond energy, poor weather resistance, etc., and achieve good impact resistance, good adhesion, normal temperature and low temperature The effect of outstanding toughness

Inactive Publication Date: 2011-11-23
ZHUZHOU TIMES ELECTRIC INSULATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Chinese patent application 200910075548.1 discloses the composition and preparation method of "a hydroxyl resin composition and a solvent-free polyurethane putty containing the composition". (MDI) and the polyisocyanate group (NCO) of the hexamethylene diisocyanate (HDI) prepolymer react to form a polyurethane joint filler with a network structure; due to the low bond energy of the urethane bond in the polyurethane material, the adhesion is small and the weather resistance Poor performance, low impact resistance

Method used

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  • Putty for repairing aerogenerator blade and preparation method therefore
  • Putty for repairing aerogenerator blade and preparation method therefore
  • Putty for repairing aerogenerator blade and preparation method therefore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 is used for wind power generation blade big flaw Large seam shaping putty for repair

[0026] Putty for wind power blade repair, where component A includes: polyaspartic acid ester resin 36kg, dispersant 0.5kg, defoamer 0.3kg, titanium dioxide 10kg, talcum powder 45kg, zinc stearate 5kg, gas phase Silica 1kg, organically modified bentonite 1kg, Activated molecular sieve powder 2kg; component B includes: hexamethylene diisocyanate (HDI) trimer 16.7kg, flexible aliphatic polyester modified HDI trimer 16.7kg;

[0027] Its preparation method is: ① polyaspartic acid ester resin, dispersant, defoamer, titanium dioxide, talcum powder, zinc stearate, fumed silica, organically modified bentonite, Put the activated molecular sieve powder into a vacuum high-viscosity mixer together and stir evenly (about 15 minutes), keep the vacuum at 0.02MPa during stirring, and wet for 12 hours after stirring evenly.

[0028] ② Pour the material obtained in step ① into a three...

Embodiment 2

[0031] Embodiment 2 is used for wind power generation blades eye of a needle Pinhole putty for defect repair

[0032] The preparation method is the same as in Example 1, and the contents of each component are shown in Table 1, and the various performance indexes of the prepared putty are shown in Table 2.

Embodiment 3

[0033] Embodiment 3 is used for wind power generation blade Low temperature resistant large seam patching putty

[0034] The preparation method is the same as in Example 1, and the contents of each component are shown in Table 1, and the various performance indexes of the prepared putty are shown in Table 2.

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PUM

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Abstract

The invention discloses a putty for repairing aerogenerator blades. The putty comprises, by weight, polyaspartic ester resin 30 to 50, a dispersant 0.5 to 1.5, an antifoaming agent 0.1 to 0.5, a pigment filler 40 to 60, a sanding agent 3 to 8, a rheological agent 3 to 8, a rheological agent 2 to 5, a dehydrating agent 2 to 4, hexa-diisocyanate trimer 16 to 40 and flexible aliphatic polyester modified hexa-diisocyanate trimer 0 to 18. The invention also discloses a preparation method for the putty. The putty prepared in the invention has a plurality advantages like good tenacity, excellent adhesion to the substrate of glass fiber reinforced plastics, short polishing time, etc.

Description

technical field [0001] The invention relates to the technical field of wind power generation equipment, in particular to a putty for repairing wind power generation blades and a preparation method thereof. Background technique [0002] Wind power blades are mostly made of epoxy thermosetting resin, glass fiber cloth and other materials. The joints of the blades are uneven, with many pinholes on the surface and local mold release damage. Therefore, it is necessary to spray polyurethane paint before spraying. Use the matching putty to repair the leveling. [0003] At present, most of the repair putties used on wind power blades are polyurethane systems. For example, Chinese patent application 200910075548.1 discloses the composition and preparation method of "a hydroxyl resin composition and a solvent-free polyurethane putty containing the composition". (MDI) and the polyisocyanate group (NCO) of the hexamethylene diisocyanate (HDI) prepolymer react to form a network structu...

Claims

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Application Information

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IPC IPC(8): C09D5/34
Inventor 李儒剑陈立斌周升曾凡辉罗振寰
Owner ZHUZHOU TIMES ELECTRIC INSULATION
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