Fluorine modified aspartic polyurea coating and preparation method thereof

A fluorine modification and coating technology, applied in the field of fluorine modified aspartame polyurea coating and its preparation, can solve the problems of insufficient aging resistance, high VOC emission, low water contact angle, etc.

Active Publication Date: 2019-01-15
SHENZHEN FEIYANG JUNYAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional wind power blade coatings use polyurethane systems, which have the disadvantages of insufficient aging resistance and high VOC emissions; wind power blade coatings made of polyaspartate polyurea systems have high solids and low VOCs, are environmentally friendly, have excellent low-temperature flexibility, and are resistant to aging and Rain erosion resistance can meet the requirements, but the wa

Method used

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  • Fluorine modified aspartic polyurea coating and preparation method thereof
  • Fluorine modified aspartic polyurea coating and preparation method thereof
  • Fluorine modified aspartic polyurea coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of fluorine-modified aspartic polyurea paint, specifically comprises following component:

[0047] A component

[0048]

[0049] B component:

[0050] 20 parts by weight of hexamethylene diisocyanate trimer;

[0051] 80 parts by weight of isophorone diisocyanate dimer;

[0052] B component NCO% is 10.2%.

[0053] Mix components A and B according to the ratio of 100:56 and apply evenly.

[0054] At the same time, the fluorine-containing polyaspartic acid ester resin used therein, the resin raw material required for its synthesis can include the following components:

[0055]

[0056] Fumaryl chloride, trifluoroethanol, p-hydroxyphenyl ether, and pyridine were mixed in a 1000ml four-necked flask and heated to 70°C for 3 hours. The product is washed with water to remove salt, and finally purified by rectification to obtain fumaric acid-1,1'-di(2,2,2-trifluoroethyl) ester. Get 353g fumaric acid-1,1'-bis(2,2,2-trifluoroethyl) ester and 110g of 4,4'-diamino...

Embodiment 2

[0059] A kind of fluorine-modified aspartic polyurea coating, this coating comprises following component:

[0060] A component

[0061]

[0062] B component:

[0063] 100 parts by weight of hexamethylene diisocyanate trimer;

[0064] B component NCO% is 23%.

[0065] Mix components A and B according to the ratio of 5:1 and apply evenly.

[0066] At the same time, the raw material formula required for the synthesis of the fluorine-containing polyaspartate resin used is as follows:

[0067]

[0068] Fumaryl chloride, trifluoroethanol, p-hydroxyphenyl ether, and pyridine were mixed in a 1000ml four-neck flask and heated to 60°C for 3 hours. The product is washed with water to remove salt, and finally purified by rectification to obtain fumaric acid-1,1'-di(2,2,2-trifluoroethyl) ester. Take 353g of fumaric acid-1,1'-di(2,2,2-trifluoroethyl) ester with 4,4'-diaminodicyclohexylmethane and 3,3'-dimethyl-4 , 4'-diaminodicyclohexylmethane was mixed in a 500ml four-necked flas...

Embodiment 3

[0070] A kind of fluorine-modified aspartic polyurea coating, described coating comprises following component

[0071] A component

[0072]

[0073]

[0074] B component:

[0075] 100 parts by weight of hexamethylene diisocyanate trimer;

[0076] B component NCO% is 23.5%.

[0077] Mix components A and B according to the ratio of 1:0.31 and apply evenly.

[0078] Meanwhile, the fluorine-containing polyaspartic acid ester resin used, its synthetic raw material formulation components are as follows:

[0079]

[0080] Fumaryl chloride, trifluoroethanol, p-hydroxyphenyl ether, and triethylamine were mixed in a 1000ml four-neck flask and heated to 50°C for 4 hours. The product is washed with water to remove salt, and finally purified by rectification to obtain fumaric acid-1,1'-di(2,2,2-trifluoroethyl) ester. Take 353g of fumaric acid-1,1'-bis(2,2,2-trifluoroethyl) ester and isophorone diamine and mix them in a 500ml four-necked flask, and incubate at 90°C for 30 hour...

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PUM

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Abstract

The invention discloses a fluorine-modified aspartic polyurea coating and a preparation method thereof, and relates to the technical field of synthetic coatings. The fluorine-modified aspartic polyurea coating is prepared by creatively combining the advantages of aspartic polyurea and a fluorocarbon coating, the fluorine-modified aspartic polyurea coating prepared from fluorine-modified fluorine-containing polyaspartic acid ester resin can be applied wind power blades, can significantly improve the glass transition temperature, improves the high temperature resistance of a coating film, and further improves the anti-aging, anti-light loss an d anti-tarnish properties at high temperature, the water contact angle of the coating surface is reduced, the wetting and erosion of water to the coating film can be reduced, the resistance to the water is improved, and the ability to resist ice coating is improved when the wind turbine blades are operated in a low temperature and high humidity environment.

Description

technical field [0001] The invention relates to the technical field of synthetic coatings, in particular to a fluorine-modified aspartame coating and a preparation method thereof. Background technique [0002] The scale of wind power blade coatings continues to expand with the increase in the proportion of clean energy in China, because wind power blades are used all-weather and for a long time in various weather conditions ranging from high temperature in summer to low temperature in winter and wind, sand, rain and snow. The length reaches 60-80 meters, and the linear speed during operation is as high as 60-80 meters per second. At this high speed, the dust, sand, raindrops, ice and snow in the air will cause serious abrasion to the wind turbine blades. The economic benefits of wind turbines are directly affected by the stable running time and downtime maintenance frequency, so there are extremely high protection performance requirements for wind turbine blade coatings, suc...

Claims

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Application Information

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IPC IPC(8): C09D175/02C08G18/32
CPCC08G18/3831C09D175/02
Inventor 朱龙晖邬茳罗善锴何飞云王海波鲁晓东
Owner SHENZHEN FEIYANG JUNYAN TECH DEV
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