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Acrylic polyurethane finish for rail traffic vehicle interiors and preparation method thereof

An acrylic polyurethane and rail transit vehicle technology, which is applied in the field of acrylic polyurethane topcoat for rail transit vehicle interiors and its preparation, can solve the problems of less all requirements and the like, and achieves improved bending resistance, low content, and irritating odor. and odorless effect

Inactive Publication Date: 2019-07-02
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

However, the existing coating products for interior decoration of rail transit vehicles are less able to meet all requirements.

Method used

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  • Acrylic polyurethane finish for rail traffic vehicle interiors and preparation method thereof
  • Acrylic polyurethane finish for rail traffic vehicle interiors and preparation method thereof
  • Acrylic polyurethane finish for rail traffic vehicle interiors and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] An acrylic polyurethane topcoat for interior decoration of rail transit vehicles and a preparation method thereof, comprising two parts of a paint material and a curing agent, and said polyurethane paint comprises the following raw materials in parts by weight:

[0064] (1) Paint components include: 30 parts of high-solid high-hydroxyl acrylic polyurethane resin, 25 parts of fluorine-modified high-solid high-hydroxyl polyester resin, 1.5 parts of solvent-free anti-graffiti reactive silicone leveling agent, solvent-free 0.8 parts of silicone defoamer, 1.5 parts of solvent-free low molecular weight wetting and dispersing agent, 2 parts of solvent-free anti-aging additive, 0.5 parts of solvent-free leveling agent, 22.7 parts of pigment, 6 parts of matte powder, poly 1 part of amide wax, 9 parts of diluent;

[0065] (2) The curing agent components include:

[0066] 60 parts of solvent-free aliphatic polyisocyanate trimer, 1 part of polyurethane dehydrating agent, 10 parts ...

Embodiment 2

[0074] An acrylic polyurethane topcoat for interior decoration of rail transit vehicles and a preparation method thereof, comprising two parts of a paint material and a curing agent, and said polyurethane paint comprises the following raw materials in parts by weight:

[0075] (1) Paint components include: 35 parts of high-solid high-hydroxyl acrylic polyurethane resin, 17.5 parts of fluorine-modified high-solid high-hydroxyl polyester resin, 1 part of solvent-free anti-graffiti reactive silicone leveling agent, solvent-free 0.5 parts of silicone defoamer, 1 part of solvent-free low molecular weight wetting and dispersing agent, 3 parts of solvent-free anti-aging additive, 0.3 parts of solvent-free leveling agent, 24.7 parts of pigment, 4.5 parts of matte powder, poly 1.5 parts of amide wax, 11 parts of diluent;

[0076] (2) The curing agent components include:

[0077] 60 parts of solvent-free aliphatic polyisocyanate trimer, 1.2 parts of polyurethane dehydrating agent, 10 p...

Embodiment 3

[0082] An acrylic polyurethane topcoat for interior decoration of rail transit vehicles and a preparation method thereof, comprising two parts of a paint material and a curing agent, and said polyurethane paint comprises the following raw materials in parts by weight:

[0083] (1) Paint components include: 40 parts of high-solid and high-hydroxyl acrylic polyurethane resin, 13.3 parts of fluorine-modified high-solid and high-hydroxyl polyester resin, 2 parts of solvent-free anti-graffiti reactive silicone leveling agent, solvent-free 1 part of silicone defoamer, 1.3 parts of solvent-free low molecular weight wetting and dispersing agent, 2.5 parts of solvent-free anti-aging additive, 0.4 part of solvent-free leveling agent, 16.5 parts of pigment, 5 parts of matte powder, poly 1 part of amide wax, 17 parts of diluent;

[0084] (2) The curing agent components include:

[0085] 60 parts of solvent-free aliphatic polyisocyanate trimer, 1.5 parts of polyurethane dehydrating agent,...

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Abstract

The invention relates to an acrylic polyurethane finish for rail traffic vehicle interiors and a preparation method thereof. The acrylic polyurethane finish for rail traffic vehicle interiors comprises paint and a curing agent. The paint comprises (by weight): 30-40 parts of high-solid polyether-modified low-hydroxy acrylic resin, and 10-25 parts of tetrafluoro-modified high-solid high-hydroxy polyester resin. The curing agent comprises (by weight): 58-62 parts of a solvent-free fatty polyisocyanate trimer and 1-3 parts of a polyurethane dehydrant. The invention mainly aims to obtain acrylic polyurethane finish with low VOC residual quantity and excellent coating property. The finish can satisfy customers' demand for performance requirement and environmental requirement of coating of relative products, the problem of heavy pungent smell of an existing solvent type product for rail traffic vehicle interiors is solved, and a comfortable and environmentally-friendly interior environment is created for passengers in rail traffic vehicles.

Description

technical field [0001] The invention relates to an acrylic polyurethane topcoat for interior decoration of rail transit vehicles and a preparation method thereof. Background technique [0002] In recent years, the overall development trend of the rail transit industry has been good, especially the subways and light rails in various cities have received great attention and support. With the improvement of people's living standards, there are new requirements for the safety and comfort of rail transit rides. More attention has been paid to environmental protection and health. In 2018, two technical standards related to coatings, Q / CR 546.1-2016 and Q / CR 581-2017 promulgated by the Railway Corporation, were gradually put into application, and the performance requirements of solvent-based coatings products were significantly improved. In order to reduce the irritating smell inside the vehicle and meet the safety and comfort needs of passengers, the owners of rail transit vehicl...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/65C09D7/20C08G18/40C08G18/46
CPCC09D175/04C09D7/65C09D7/20C08G18/4009C08G18/4607C08L77/00
Inventor 邹启强倪宇张丹
Owner 株洲市九华新材料涂装实业有限公司
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