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Stain-resistant fluorocarbon coating for building external wall and preparation method of stain-resistant fluorocarbon coating

A technology of building exterior walls and fluorocarbon coatings, applied in the field of coatings, can solve problems such as unsatisfactory stain resistance and low surface energy, and achieve good self-cleaning properties, high surface energy, and small particle size

Active Publication Date: 2020-04-03
武汉长弢新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fluorocarbon coatings have low surface energy and outstanding non-stick properties. In theory, they should have excellent stain resistance. However, regardless of laboratory data or on-site investigation results, fluorocarbon coatings are prone to " "Rain marks", the stain resistance is not ideal

Method used

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  • Stain-resistant fluorocarbon coating for building external wall and preparation method of stain-resistant fluorocarbon coating
  • Stain-resistant fluorocarbon coating for building external wall and preparation method of stain-resistant fluorocarbon coating
  • Stain-resistant fluorocarbon coating for building external wall and preparation method of stain-resistant fluorocarbon coating

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Embodiment 1

[0031] 1. This embodiment provides a stain-resistant fluorocarbon coating for building exterior walls, the raw materials of which include component A and component B in a weight ratio of 100:20;

[0032] The raw materials of component A include, by weight, 60 parts of aqueous fluorocarbon emulsion, 20 parts of titanium dioxide, 0.5 part of quaternized polyether siloxane, 0.2 part of defoamer, 0.1 part of wetting agent, and dispersant 0.2 parts, 0.1 parts of nano silica, 2.6 parts of propylene glycol, 10 parts of film-forming aids, 0.1 parts of leveling agents, 0.5 parts of substrate wetting agents, 0.5 parts of rheology additives, 0.19 parts of multifunctional amine additives, 0.01 part of catalyst and 5 parts of water;

[0033] The raw materials of the B component include, by weight, 40 parts of HDI curing agent and 60 parts of propylene glycol methyl ether acetate.

[0034] 2. This embodiment provides a method for preparing stain-resistant fluorocarbon paint for building exterior ...

Embodiment 2

[0039] 1. This embodiment provides a stain-resistant fluorocarbon coating for building exterior walls, the raw materials of which include component A and component B in a weight ratio of 100:8;

[0040] The raw materials of component A include, by weight, 40 parts of aqueous fluorocarbon emulsion, 30 parts of titanium dioxide, 3 parts of quaternized hydroxypolysiloxane, 0.3 parts of antifoaming agent, 0.5 parts of wetting agent, and dispersing agent 1 part, 0.2 part of nano silica, 1 part of propylene glycol, 2 parts of film-forming aids, 0.5 parts of leveling agent, 0.3 parts of substrate wetting agent, 1 part of rheology additives, 0.1 part of multifunctional amine additives, 0.1 part of catalyst and 20 parts of water;

[0041] The raw materials of the B component include 60 parts of HDI curing agent and 40 parts of propylene glycol methyl ether acetate in terms of weight fraction.

[0042] 2. This embodiment provides a method for preparing stain-resistant fluorocarbon paint for b...

Embodiment 3

[0047] 1. This embodiment provides a stain-resistant fluorocarbon coating for building exterior walls, the raw materials of which include component A and component B in a weight ratio of 100:10;

[0048] The raw materials of the A component in weight fraction include: 40 parts of aqueous fluorocarbon emulsion, 30 parts of titanium dioxide, 10 parts of quaternized hydroxypolyether siloxane, 0.3 parts of defoaming agent, 1 part of wetting agent, dispersion 1 part, 0.2 part of nano silica, 1 part of propylene glycol, 3 parts of film-forming aid, 0.2 part of leveling agent, 0.1 part of substrate wetting agent, 1 part of rheology additive, 0.1 part of multifunctional amine additive , 0.1 part of catalyst, 12 parts of water;

[0049] The raw materials of the B component include, by weight, 50 parts of HDI curing agent and 50 parts of propylene glycol methyl ether acetate.

[0050] 2. This embodiment provides a method for preparing stain-resistant fluorocarbon paint for building exterior w...

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Abstract

The invention discloses a stain-resistant fluorocarbon coating for a building external wall and a preparation method of the stain-resistant fluorocarbon coating. Raw materials of the stain-resistant fluorocarbon coating comprise a component A and a component B in a weight ratio of 100:(8-20); the component A is composed of the raw materials by weight: 40-60 parts of a water-based fluorocarbon emulsion, 20-30 parts of titanium dioxide, 0.5-10 parts of quaternized polysiloxane, 0.2-1 part of a defoaming agent, 0.1-1 part of a wetting agent, 0.2-1 part of a dispersing agent, 0.1-1 part of nano silicon dioxide, 1-3 parts of propylene glycol, 2-10 parts of a coalescing agent, 0.1-0.5 part of a leveling agent, 0.1-1 part of a base material wetting agent, 0.1-1 part of a rheological auxiliary agent, 0.1-0.3 part of a multifunctional amine auxiliary agent, 0.01-0.2 part of a catalyst and 5-20 parts of water. The component B comprises the raw materials by weight: 40-60 parts of an HDI curing agent and 40-60 parts of propylene glycol methyl ether acetate. The stain resistance of the coating is remarkably enhanced.

Description

Technical field [0001] The invention relates to the technical field of coatings, in particular to a stain-resistant fluorocarbon coating for building exterior walls and a preparation method thereof. Background technique [0002] With the rapid development of social economy and the increasing improvement of people's living standards, high-performance, environmentally-friendly architectural coatings are increasingly being favored by people, and the decorativeness of coatings has been paid more and more attention. The stain resistance of the coating is very important to the decoration of the coating, and has become a very important indicator to measure the quality of the coating (especially the architectural coating). However, traditional architectural exterior wall coatings often have the defects of poor stain resistance and insufficient aging resistance, which can no longer meet the needs of modern people. [0003] Fluorocarbon coatings have the characteristics of super weather res...

Claims

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Application Information

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IPC IPC(8): C09D127/12C09D175/04C09D5/16C08G18/61
CPCC08G18/61C08K2003/2241C08K2201/003C08K2201/011C09D5/1618C09D127/12C08L75/04C08K3/36
Inventor 邵玮
Owner 武汉长弢新材料有限公司
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