Fireproof coating for rail transit locomotive/vehicle and preparation method thereof

A technology for rail transit vehicles and fireproof coatings, applied in fireproof coatings, epoxy resin coatings, coatings, etc., can solve problems such as insufficient matching of topcoats, coatings that cannot dry themselves, and affect fireproof performance, etc., to achieve excellent adhesion Adhesion, simple coating, fast curing at low temperature

Active Publication Date: 2021-04-02
株洲市九华新材料涂装实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two-component fireproof coating is characterized by large foaming coefficient, fast self-drying coating, and a good match with the topcoat. However, after burning, due to foaming and expansion, the void is large, the structure is weak, and the layer is easy to perforate and fall off, which affects the fireproof performance. The single-component fireproof coating is characterized by medium foaming coefficient, dense white surface layer, high structural strength of the internal carbon layer, and honeycomb shape, good heat insulation effect, and strong fireproof ability, but the coating cannot be self-drying, and it is different from the topcoat supporting is not good enough

Method used

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  • Fireproof coating for rail transit locomotive/vehicle and preparation method thereof
  • Fireproof coating for rail transit locomotive/vehicle and preparation method thereof
  • Fireproof coating for rail transit locomotive/vehicle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A fireproof coating for rail transit locomotives / vehicles, comprising two components of a paint and a curing agent, in parts by weight, the paint includes: 25 parts of epoxy resin, 9 parts of poly-alpha-methylstyrene resin, 49 parts of flame retardant, 6 parts of tributyl phosphate, 2 parts of silicon dioxide, 1 part of antioxidant, 0.4 parts of dispersant, 0.3 parts of defoamer, 4 parts of titanium dioxide, 3.3 parts of reactive diluent;

[0050] The curing agent includes: 50 parts of isophorone diamine, 23 parts of m-xylylenediamine, 10 parts of DMP-30, 0.3 parts of salicylic acid, 1.7 parts of siloxane coupling agent, and 15 parts of benzyl alcohol;

[0051] The weight ratio of the flame retardant is: 30 parts of ammonium polyphosphate, 4 parts of expanded graphite, 12 parts of amino resin, 1 part of zinc borate, and 2 parts of pentaerythritol triacrylate.

[0052] Wherein the reactive diluent is proportioned by weight:

[0053] p-tert-phenyl glycidyl ether: carbon ...

Embodiment 2

[0064] A fireproof coating for rail transit locomotives / vehicles, comprising two components of a paint and a curing agent, in parts by weight, the paint includes: 27 parts of epoxy resin, 8 parts of poly-alpha-methylstyrene, retardant 48 parts of fuel, 5 parts of tributyl phosphate, 2.5 parts of silicon dioxide, 0.5 parts of antioxidant, 0.5 parts of dispersant, 0.2 parts of defoamer, 4.5 parts of titanium dioxide, 3.8 parts of reactive diluent;

[0065] The curing agent includes: 45 parts of isophorone diamine, 20 parts of m-xylylenediamine, 9 parts of DMP-30, 0.4 part of salicylic acid, 2.6 parts of siloxane coupling agent, and 23 parts of benzyl alcohol;

[0066] The weight ratio of the flame retardant is: 32 parts of ammonium polyphosphate, 3 parts of expanded graphite, 10 parts of amino resin, 0.5 part of zinc borate, and 2.5 parts of pentaerythritol triacrylate.

[0067] Wherein reactive diluent proportioning is with embodiment 1.

[0068] The preparation method is the ...

Embodiment 3

[0070] A fireproof coating for rail transit locomotives / vehicles, comprising two components of a paint and a curing agent, in parts by weight, the paint includes: 28 parts of epoxy resin, 10 parts of poly-alpha-methylstyrene, retardant 45.8 parts of fuel, 4 parts of tributyl phosphate, 2.5 parts of silicon dioxide, 0.8 parts of antioxidant, 0.8 parts of dispersant, 0.1 part of defoamer, 5 parts of titanium dioxide, and 3 parts of reactive diluent;

[0071] The curing agent includes: 40 parts of isophorone diamine, 25 parts of m-xylylenediamine, 8 parts of DMP-30, 0.6 part of salicylic acid, 1.4 parts of siloxane coupling agent, and 25 parts of benzyl alcohol;

[0072] The weight ratio of the flame retardant is: 32 parts of ammonium polyphosphate, 2 parts of expanded graphite, 8 parts of amino resin, 0.8 part of zinc borate, and 3 parts of pentaerythritol triacrylate.

[0073] Wherein reactive diluent proportioning is with embodiment 1.

[0074] The preparation method is the s...

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Abstract

The invention relates to a fireproof coating for a rail transit locomotive / vehicle and a preparation method of the fireproof coating. The fireproof coating for the rail transit locomotive / vehicle is prepared by taking poly-alpha-methyl styrene modified epoxy resin, a fire retardant and the like as the components of the coating, taking modified amine and a curing agent accelerator as components ofa curing agent, and using a proper amount of a diluent in the construction. The main purpose is to obtain a fireproof coating product for the rail transit locomotive / vehicle, the thickness of a film of the fireproof coating product for the rail transit locomotive / vehicle is thin (less than or equal to 2.0 mm), the expansion coefficient is large, the structural strength of a carbon layer is high, the heat conductivity coefficient is low, the fire resistance is strong, the adhesive property is good, the spraying is convenient in the construction, and the comprehensive performances are excellent.

Description

technical field [0001] The invention relates to a coating for rail transit locomotives / vehicles, in particular to a fireproof coating for rail transit locomotives / vehicles and a preparation method thereof. Background technique [0002] At present, domestic fire-resistant coatings are mostly used in engineering construction, while fire-resistant coatings for rail transit basically rely on imports. The main brands include two-component Dutch Sika, one-component British Jotun and German 3KS, etc. The two-component fireproof coating is characterized by large foaming coefficient, fast self-drying coating, and a good match with the topcoat. However, after burning, due to foaming and expansion, the void is large, the structure is weak, and the layer is easy to perforate and fall off, which affects the fireproof performance. The single-component fireproof coating is characterized by medium foaming coefficient, dense white surface layer, high structural strength of the internal carbo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D125/16C09D5/18C08G59/50C08G59/68
Inventor 孙贤国李胜群龚文晶游小娟杨小叶罗建
Owner 株洲市九华新材料涂装实业有限公司
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