Water-based two-component coating for rail transit vehicle interiors and preparation method thereof

A technology for rail transit vehicles and two-component coatings, used in fire-resistant coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as lack of green environmental protection, achieve low VOC content and residual monomer content, and excellent adhesion. , the effect of preventing loss

Inactive Publication Date: 2020-09-04
山东七维新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the prior art lacks green and environmentally friendly coatings for rail transit interiors that meet the requirements of use, the present invention provides a water-based two-component coating for interiors of rail transit vehicles and a preparation method thereof. Combined curing technology, combined with water-based hydroxy silicone hand additives, can keep the hand feel of the coating stable for a long time, with low VOC content and residual monomer content, free of formaldehyde and benzene series, suitable for human contact, and very suitable for track applications Interior painting of traffic vehicles

Method used

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  • Water-based two-component coating for rail transit vehicle interiors and preparation method thereof
  • Water-based two-component coating for rail transit vehicle interiors and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A water-based two-component coating for interior decoration of rail transit vehicles, the coating includes component A and component B, and the weight ratio of component A to component B is 10:1,

[0045] Described component A comprises following composition:

[0046] Water-based hydroxyl acrylic resin 30%, water-based hydroxyl polyurethane hand resin 20%, water-based hydroxyl silicone hand additive 0.5%, pigment and filler 25%, environmental protection flame retardant 5%, sand pattern wax 4%, matting powder 1%, water-based dispersion 0.2% water-based wetting agent, 0.2% water-based defoamer, 0.5% water-based leveling agent, 0.7% water-based thickener, and the balance is water.

[0047] Among them, the water-based hydroxyacrylic resin is a compound of the primary dispersion and the secondary dispersion according to the weight ratio of 1:2,

[0048] The water-based hydroxyl polyurethane hand feeling resin is a water-based acrylic modified hydroxyl polyurethane hand feel...

Embodiment 2

[0068] Component A comprises the composition of following weight percent:

[0069] Water-based hydroxyl acrylic resin 66%, water-based hydroxyl polyurethane hand resin 20%, water-based hydroxyl silicone hand additive 1.8%, pigments and fillers 30%, environmental protection flame retardant 8.5%, sand pattern wax 7%, matting powder 4.5%, water-based dispersion 0.8% water-based wetting agent, 0.8% water-based defoamer, 0.8% water-based leveling agent, 1.2% water-based thickener, the balance is water, and the water-based hydroxyl polyurethane hand feeling resin is oil-modified hydroxyl polyurethane hand feeling resin , the sand pattern wax is polypropylene wax sand pattern wax;

[0070] Component B comprises the composition of following weight percent:

[0071] Waterborne polyisocyanate resin 90%, solvent 10%, solvent is PGDA;

[0072] The remaining ingredients and preparation methods of component A and component B are consistent with those in Example 1.

Embodiment 3

[0074] The difference between embodiment 3 and embodiment 1 is that component A and component B each component consumption is different,

[0075] The composition of component A following weight percent among the embodiment 3:

[0076] 45% water-based hydroxyl acrylic resin, 15% water-based hydroxyl polyurethane handle resin, 1% water-based hydroxyl silicone handle additive, 20% pigment and filler, 6% environmentally friendly flame retardant, 6% sand pattern wax, 3% matting powder, water-based dispersion 1% agent, 0.6% water-based wetting agent, 0.6% water-based defoamer, 0.8% water-based leveling agent, 0.8% water-based thickener, the balance is water, and the water-based hydroxy polyurethane hand feel resin is polyester modified hydroxy polyurethane hand feel Resin, sand pattern wax is polytetrafluoroethylene wax sand pattern wax;

[0077] Described component B comprises the composition of following percentage by weight:

[0078] 85% water-based polyisocyanate resin, 15% so...

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Abstract

The invention relates to the technical field of paint for interior decoration, in particular to a water-based two-component coating for rail transit vehicle interiors and a preparation method thereof.The coating comprises a component A and a component B in a weight ratio of 10: 1, wherein the component A comprises water-based hydroxyl acrylic resin, water-based hydroxyl polyurethane hand feelingresin, a water-based hydroxyl organic silicon hand feeling auxiliary agent, pigment and filler, an environment-friendly flame retardant, sand streak wax, extinction powder, a water-based dispersing agent, a water-based wetting agent, a water-based defoamer, a water-based leveling agent, a water-based thickener and water, and the component B comprises water-based polyisocyanate resin and a solvent.The preparation method comprises preparation of the component A and preparation of the component B. The coating provided by the invention adopts a two-component cross-linking curing technology and ismatched with a water-based hydroxyl organic silicon hand feeling auxiliary agent, so that the hand feeling of the coating can be kept stable for a long time, the VOC content and the residual monomeramount are low, formaldehyde, benzene series and the like are not contained, and the coating is suitable for human body contact and is very suitable for interior coating of rail transit vehicles.

Description

technical field [0001] The invention relates to the technical field of coatings for interior decoration, in particular to a water-based two-component coating for interior decoration of rail transit vehicles and a preparation method thereof. Background technique [0002] In recent years, the rail transit industry has achieved great development, which has brought new requirements to related supporting industries, especially new technical requirements for interior coating materials of rail transit vehicles. The technical requirements are as follows: [0003] (1) The internal space of rail transit vehicles is narrow, and once a fire occurs, it will cause great losses. Therefore, the interior coating is required to have the functions of inhibiting flame combustion, smoke density, and smoke and toxic gas emission; [0004] (2) The paint must have low VOC emissions, no formaldehyde, benzene series, etc.; [0005] (3) In addition to certain decorative properties, the interior coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/14C09D5/18C09D7/65C09D7/61C09D7/42C09D7/44C09D7/47
CPCC08K2003/265C08L2201/02C08L2205/02C08L2205/025C08L2205/035C08L2312/00C09D5/18C09D175/04C09D175/14C09D7/42C09D7/44C09D7/47C09D7/61C09D7/65C08L75/14C08L83/04C08L23/06C08L33/02C08L75/04C08K13/06C08K3/36C08K3/26C08K3/016C08L23/12C08L27/18C08K3/346
Inventor 徐斗勇
Owner 山东七维新材料有限公司
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