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Composite anti-skid coating for heavy-load track and preparation method of composite anti-skid coating

An anti-slip coating and anti-slip technology, applied in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve problems such as difficult maintenance of rail transit, and achieve excellent adhesion, high tolerance, and convenient maintenance and repair.

Active Publication Date: 2022-04-12
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to provide a composite anti-skid coating for heavy-duty rails in order to solve the possible slipping safety problems of existing rail traffic, which can significantly improve the wheel-rail friction coefficient, reduce the possibility of train slipping, and ensure the safety of the train. safe running and braking
[0006] The second object of the present invention is to solve the problem that rail traffic is not easy to maintain during use, and to provide a preparation method for a composite anti-skid coating for heavy-duty rails, so as to ensure the non-stop rail maintenance of trains

Method used

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  • Composite anti-skid coating for heavy-load track and preparation method of composite anti-skid coating
  • Composite anti-skid coating for heavy-load track and preparation method of composite anti-skid coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Substrate treatment: sandblasting and derusting, reaching Sa 2.5 level in the national standard GB / T8923, and the roughness of the substrate is M level in the national standard GB / T13288.

[0058] Spraying primer: Mix HF-07-Ⅰ modified epoxy anti-corrosion primer according to the mass ratio of two components of 20:3.5, spraying construction, film thickness 120μm, after 5h hard drying, apply anti-skid topcoat.

[0059] Roller coating the first anti-skid topcoat: Mix the three components of HF-07-Ⅰ modified epoxy anti-skid topcoat according to the ratio of 2:1:0.75, apply by roller coating, the film thickness is 200μm, dry for 21 hours and then apply the next layer A non-slip top coat.

[0060] Roller coating the second anti-slip topcoat: mix the main agent component and curing agent component ratio of the polyaspartic ester topcoat evenly and mix the anti-slip particles with the anti-slip particles in a ratio of 2:1, roll coating construction, The film thickness is 250μm...

Embodiment 2

[0063] Construction is the same as Example 1, and the difference is that the polyaspartic ester topcoat comprises the following components: 25 parts of 1# polyaspartic acid ester resins, 5 parts of 2# polyaspartic acid ester resins, 15 parts of polyaspartic acid ester resins, 15 parts of polyaspartic acid ester resins, Ether polyol, 5 parts of anti-rust filler, wherein the anti-rust filler is a mixture of mica iron oxide red and 809 anti-rust filler, the mixing ratio of the two is 8:1, 5 parts of mica powder, 20 parts of talcum powder, 0.3 part of EFKA 4020 Polymer dispersant, 0.5 part of EFKA 2021 non-organic silicon defoamer, 0.3 part of EFKA 3031 organically modified silicone slipping and leveling agent, 0.5 part of antioxidant T501, 0.05 part of organic bismuth drier; curing agent The component is polyisocyanate; the weight ratio of the main agent component to the curing agent component is 3:1.

Embodiment 3

[0065] Construction is the same as Example 1, and the difference is that the polyaspartic ester topcoat comprises the following components: 25 parts of 1# polyaspartic acid ester resins, 5 parts of 2# polyaspartic acid ester resins, 10 parts of polyaspartic acid ester resins, 10 parts of polyaspartic acid ester resins, Ether polyol, 5 parts of anti-rust filler, wherein the anti-rust filler is a mixture of mica iron oxide red and 809 anti-rust filler, the mixing ratio of the two is 8:1, 5 parts of mica powder, 20 parts of talcum powder, 0.6 part of EFKA 4010 Polymer dispersant, 0.5 part of EFKA 2018 non-organic silicon defoamer, 0.15 part of EFKA 3031 organically modified silicone slipping and leveling agent, 0.5 part of antioxidant T501, 1 part of ultraviolet absorber UV-327, 0.05 part Organic bismuth driers; the curing agent component is polyisocyanate; the weight ratio of the main agent component to the curing agent component is 2:1.

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Abstract

The invention relates to an anti-skid coating for a heavy-load track and a preparation method thereof, and the composite anti-skid coating for the heavy-load track comprises an anti-corrosion primer, a first anti-skid finishing coat and a second anti-skid finishing coat, wherein the anti-corrosion primer is epoxy anti-corrosion primer; the first anti-skid finish paint is epoxy anti-skid finish paint; and the second anti-skid finish paint comprises a polyaspartic acid ester finish paint and anti-skid particles. The selected resin has the characteristics of high solid content, low viscosity, high reaction speed and the like, and the special composition of the first anti-skid finishing coat and the second anti-skid finishing coat is adopted, so that the excellent adhesive force with the anti-corrosion primer is ensured, and the properties of quick drying, aging resistance, wear resistance and the like of the coating are realized.

Description

technical field [0001] The invention relates to an anti-slip coating, in particular to an anti-slip coating for a heavy-duty track and a preparation method thereof. Background technique [0002] With the continuous advancement of social modernization, rail transit, as a more advanced and environmentally friendly public transportation, has been more and more widely used, and its safety has also received widespread attention. However, when it rains and snows, the wheel-rail adhesion decreases , the train may skid when braking on curves, slopes or even straight roads. When the train slides, the braking force needs to be reduced. After the sliding phenomenon is eliminated, the braking force will return to the original value until the train stops. However, if the braking force drops too much or recovers too slowly, the braking deceleration will be too low. The longer braking distance may cause safety accidents such as train truce, rear-end collision between multiple trains, trai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D175/02C09D7/61B05D5/00B05D5/08B05D1/28B05D7/24
Inventor 冷晓飞姜秀杰成建强白杨左娟娟陈从棕崔显林王同良王志超王均宝
Owner MARINE CHEM RES INST
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