Polyurethane paint

A technology of polyurethane coatings and coatings, applied in the field of coatings, can solve the problems of coating anti-icing and deicing effects are not obvious, and achieve the effects of improving anti-icing performance and corrosion resistance, increasing wear resistance, and improving film-forming properties

Active Publication Date: 2018-07-27
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still few anti-icing and deicing coatings that can be applied to high-cold EMUs, and the anti-icing and deicing effects of coatings formed by many coatings are not obvious, and cannot meet actual needs.

Method used

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  • Polyurethane paint
  • Polyurethane paint

Examples

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Embodiment Construction

[0038] The invention provides a polyurethane coating, which includes component A, component B and / or component C, wherein component B is a curing agent, the addition amount is 30-50% of the weight of component A, and component C is a diluent agent, according to the viscosity needs to be added, A component includes the following components by weight:

[0039] 20-40 parts of hydroxyl-terminated branched polyester resin

[0040] 4-10 parts of hydroxyl-terminated perfluoropolyether resin

[0041] 3-8 parts perfluoropolyether lubricating oil

[0042] Auxiliary 2-10 parts

[0043] Filling 5-15 parts

[0044] Catalyst 0-2 parts

[0045] 10-40 parts of organic solvent.

[0046] In order to effectively reduce the surface energy of the coating formed by the coating on the surface of the object and increase the water contact angle, in the embodiments provided by the present invention, use hydroxyl-terminated branched polyester resin, hydroxyl-terminated perfluoropolyether resin, per...

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Abstract

The invention provides polyurethane paint. The polyurethane paint is prepared from main components as follows: hydroxyl-terminated branched polyester resin, hydroxyl perfluoropolyether resin and perfluoropolyether lubricating oil. Fluorine atoms are introduced into polyurethane, perfluoropolyether is adopted, surface energy of a coating is reduced, the water contact angle can reach 105 degrees, the rolling angle is reduced to 19 degrees, and accordingly, anti-icing performance of the coating formed by the paint is improved; weather resistance is good, especially, low-temperature resistance isgood, and wear resistance and corrosion resistance are also improved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a polyurethane coating. Background technique [0002] High-speed railway is an important symbol of high-tech integration and railway modernization in today's era, reflecting the comprehensive national strength of a country. At present, China has become the country with the longest operating mileage of high-speed railway and the largest scale under construction in the world. With the northern alpine regions included in the scope of high-speed rail operations, anti-icing and de-icing issues have become an issue that must be considered. Coating anti-icing technology has the advantages of wide applicability, low application cost, simple maintenance and mature preparation process, so it has been paid more and more attention in recent years. However, there are still few anti-icing and deicing coatings that can be applied to high-cold EMUs at present, and the anti-icing and deicing e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D7/61C09D7/65C09D5/08C08G18/42C08G18/50
CPCC08G18/4018C08G18/42C08G18/5015C08L2205/03C09D5/08C09D175/06C08L71/00C08K3/34
Inventor 虞大联张金煜林鹏崔健王海波
Owner CRRC QINGDAO SIFANG CO LTD
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