Building facade coating and preparation method thereof

A facade and coating technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of good environmental performance, good corrosion resistance, strong hydrophobicity, etc.

Inactive Publication Date: 2016-01-27
杭州蓝筹企业管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a kind of building facade coating and its preparation method, aiming at solving the problem that the existing building facade coating cannot meet the requirements of good corrosion resistance, high temperature resistance and flame retardancy, and the adhesion between the coating and the substrate. Good focus, strong hydrophobicity and good environmental performance

Method used

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  • Building facade coating and preparation method thereof
  • Building facade coating and preparation method thereof
  • Building facade coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment one coating component is as follows, comprises component one and component two, wherein:

[0065] The component one includes the following components in the following mass parts: 45 parts of water-based polyurethane-acrylate composite emulsion; 10 parts of hydroxyl acrylic resin; 2-parts of boric acid modified silicone resin; 5 parts of modified hydrophobic particles; 1 part of joint agent; 0.5 part of silicon-containing surface energy additive; 6 parts of heat-reflecting pigment; 3 parts of diamine.

[0066] Based on the mass of the hydroxy acrylic resin as 100%, in the hydroxy acrylic resin, the mass percentage of the hydroxyl group is 2%, and the solid content of the resin is 65%; the glass transition temperature of the hydroxy acrylic resin is - 40℃-10℃, flexibility≤1mm. Hydroxy acrylic resin has high weather resistance, and its special molecular structure makes it have very good compatibility with water-based polyurethane-acrylate, which can further im...

Embodiment 2

[0080] Embodiment two coating components are as follows, comprise component one and component two, wherein:

[0081] The component one includes the following components in parts by mass: 47 parts of water-based polyurethane-acrylate composite emulsion; 15 parts of hydroxyl acrylic resin; 5 parts of boric acid modified silicone resin; 8 parts of modified hydrophobic particles; silane coupling 2 parts of additives; 2 parts of silicon-containing surface energy additives; 7 parts of heat-reflecting pigments; 3.5 parts of amine.

[0082] Taking the mass of the hydroxy acrylic resin as 100%, in the hydroxy acrylic resin, the mass percentage of the hydroxyl group is 3%, and the solid content of the resin is 70%; the glass transition temperature of the hydroxy acrylic resin is - 40℃-10℃, flexibility≤1mm. Hydroxy acrylic resin has high weather resistance, and its special molecular structure makes it have very good compatibility with water-based polyurethane-acrylate, which can furthe...

Embodiment 3

[0091] Embodiment three coating components are as follows, comprise component one and component two, wherein:

[0092] The component one includes the following components in the following mass parts: 50 parts of water-based polyurethane-acrylate composite emulsion; 25 parts of hydroxyl acrylic resin; 10 parts of boric acid modified silicone resin; 10 parts of modified hydrophobic particles; silane coupling 3 parts of additives; 4 parts of silicon-containing surface energy additives; 8 parts of heat-reflecting pigments; 5 parts of other additives; 4 parts of amine.

[0093] Based on the mass of the hydroxy acrylic resin as 100%, in the hydroxy acrylic resin, the mass percentage of the hydroxyl group is 5%, and the solid content of the resin is 80%; the glass transition temperature of the hydroxy acrylic resin is - 40℃-10℃, flexibility≤1mm. Hydroxy acrylic resin has high weather resistance, and its special molecular structure makes it have very good compatibility with water-ba...

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Abstract

The present invention aims to provide a building exterior facade coating and a preparation method thereof, the coating comprises a component I and a component II, wherein the component I comprises the following components by mass: 45-50 parts of waterborne polyurethane-acrylate ester composite emulsion; 10-25 parts of hydroxyl acrylic resin; 2-10 parts of boronic acid-modified silicone resin; 5-10 parts of modified hydrophobic particles, 1-3 parts of a silane coupling agent; 0.5-4 parts of a silicon-containing surface energy aid; 6-8 parts of a heat reflective pigment; and 1-5 parts of other additives; the component II comprises the following components by mass: 17-25 parts of an isocyanate curing agent; and 3-4 parts of dimethythiotoluene diamine. The building exterior facade coating also has good corrosion resistance, high temperature resistance, good flame retardance, good coating and substrate adhesion, strong hydrophobicity and good environmental performance and other advantages.

Description

Technical field [0001] The invention relates to the field of architectural coatings, in particular to an architectural facade coating and a preparation method thereof. Background technique [0002] Coating is a material that can be coated on the surface of the object to be coated and can form a continuous film with firm adhesion. This material can be coated on the surface of the object with different construction techniques to form a solid film with firm adhesion, certain strength, and continuity. The film formed in this way is commonly called a coating film, also known as a paint film or a coating. [0003] In recent years, architectural coatings have developed towards environmental protection, wear resistance, heat insulation, safety, and long life. There are many kinds of existing waterproof coatings, some of which have complicated construction operations and poor performance; some have poor waterproof effect and poor weather resistance, and some require on-site ingredie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D133/00C09D133/08C09D183/04C09D7/12C08G18/48C08G18/66C08F220/18C08F220/14C08F220/06
Inventor 吴小钢陈缘徐盼盼付杰王振彬
Owner 杭州蓝筹企业管理有限公司
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