Primer-topcoat polyurethane protective paint

A protective coating, polyurethane technology, applied in the field of paint and coating, can solve the problems of weak weather resistance and inability to adhere, and achieve the effects of excellent high resistance and quick drying, good wear resistance and simple operation steps

Inactive Publication Date: 2021-02-12
GUANGDONG YATU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some bottom-surface-integrated coatings currently available in the domestic market are mainly dried at low temperature, and their weather resistance is weak. At the same time, they have relatively large requirements for the attachment substrate, and cannot adhere to some low-surface-treated plates.

Method used

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  • Primer-topcoat polyurethane protective paint
  • Primer-topcoat polyurethane protective paint
  • Primer-topcoat polyurethane protective paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]An embodiment of the bottom-side-one polyurethane protective coating of the present invention. The bottom-side-one polyurethane protective coating includes component A and component B, and component A includes the following components by weight: 46 parts Hydroxy acrylic resin, 1.5 parts of propylene glycol methyl ether acetate, 1.5 parts of BAC, 0.5 parts of dispersant, 1.5 parts of siloxane-based coupling agent, 1.5 parts of epoxy phosphate polymer, 5 parts of zinc molybdate modified pigment, 8 parts of activated siloxane modified nano mica powder, 5 parts of ultrafine talc powder, 3 parts of ultrafine barium sulfate, 15 parts of titanium dioxide, 0.3 parts of rheological agent, 11 parts of xylene and 0.2 parts of leveling agent; The B component includes the following components by weight: 42 parts of HDI curing agent, 29 parts of BAC and 29 parts of xylene; the mass ratio of the A component and the B component is 4:1; the modified hydroxy acrylic resin It is epoxy modified h...

Embodiment 2

[0039]An embodiment of the bottom-surface-integrated polyurethane protective coating of the present invention, the bottom-surface-integrated polyurethane protective coating includes component A and component B, and component A includes the following components by weight: 38 parts modified Hydroxy acrylic resin, 2 parts propylene glycol methyl ether acetate, 2 parts BAC, 0.5 parts dispersant, 3 parts siloxane-based coupling agent, 3 parts epoxy phosphate polymer, 3 parts zinc molybdate modified pigment, 15 parts of activated siloxane modified nano mica powder, 3 parts of ultrafine talc powder, 5 parts of ultrafine barium sulfate, 11 parts of titanium dioxide, 0.3 parts of rheological agent, 8 parts of xylene and 0.2 parts of leveling agent; The B component includes the following components by weight: 42 parts of HDI curing agent, 29 parts of BAC and 29 parts of xylene; the mass ratio of the A component and the B component is 4:1. The modified hydroxy acrylic resin is an epoxy modifie...

Embodiment 3

[0042]An embodiment of the bottom-surface-integrated polyurethane protective coating of the present invention, the bottom-surface-integrated polyurethane protective coating includes component A and component B, and component A includes the following components by weight: 52 parts modified Hydroxy acrylic resin, 1 part of propylene glycol methyl ether acetate, 1 part of BAC, 0.5 part of dispersant, 1 part of siloxane-based coupling agent, 1 part of epoxy phosphate polymer, 8 parts of zinc molybdate modified pigment, 6 parts of activated siloxane modified nanometer mica powder, 6 parts of ultrafine talc, 3 parts of ultrafine barium sulfate, 23 parts of titanium dioxide, 0.3 parts of rheological agent, 15 parts of xylene and 0.2 parts of leveling agent; The B component includes the following components by weight: 42 parts of HDI curing agent, 29 parts of BAC and 29 parts of xylene; the mass ratio of the A component and the B component is 4:1. The modified hydroxy acrylic resin is an ep...

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Abstract

The invention discloses a primer-topcoat polyurethane protective coating, and belongs to the technical field of paint coatings. According to the product, the modified hydroxyl acrylic resin is used asmatrix resin, and through specific modification components, the prepared coating product not only has super-strong adhesive force and can be applied to coating of bottom plates with low surface treatment degree, such as steel plates and aluminum plates, but also has excellent high resistance and quick-drying property and can be effectively applied to various climates and environments; through cooperation of activated siloxane modified nano mica powder, ultrafine talcum powder, ultrafine barium sulfate and other granular materials, the prepared urethane protective paint also has good wear resistance. The invention also discloses a preparation method of the primer-topcoat polyurethane protective paint, and the preparation method has simple operation steps and can be used for industrial large-scale production. The invention also discloses application of the primer-topcoat polyurethane protective paint as a low surface treatment plate paint.

Description

Technical field[0001]The invention relates to the technical field of paints and coatings, in particular to a bottom-surface-integrated polyurethane protective coating.Background technique[0002]The base paint is a kind of paint that combines the primer and the top paint into one. Therefore, the requirement for it is not only the excellent anti-corrosion performance of the primer, but also the durability and fast drying of the top paint. And gloss. However, some of the bottom surface coatings currently available in the domestic market are mainly low-temperature drying, and their weather resistance is weak. At the same time, they have greater requirements for adhesion to the substrate and cannot be attached to some low-surface treated boards.Summary of the invention[0003]Based on the shortcomings of the prior art, the purpose of the present invention is to provide a polyurethane protective coating with a bottom surface that has fast drying, strong adhesion and high resistance.[0004]In ...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/08C09D7/61C09D7/62
CPCC08K2003/3045C08K2003/328C08K2201/011C08K2201/014C09D5/084C09D175/04C09D7/61C09D7/62C08L85/02C08K13/06C08K9/06C08K3/34C08K3/30C08K3/22C08K9/02C08K3/32
Inventor 冯兆均江瀚陈忠黄劼曾顺宁
Owner GUANGDONG YATU CHEM
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