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Anti-sagging thermal-insulation self-cleaning coating for building external wall and preparation method thereof

An anti-sagging technology for building exterior walls, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve the problems of small effective production volume, high requirements for production equipment, troublesome production operations, etc. Achieve the effect of improving structural connection stability, improving mechanical properties and prolonging service life

Inactive Publication Date: 2020-04-10
安徽旭通网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The anti-sagging one-component coatings currently on the market that are suitable for facade construction generally use fumed silica, organic bentonite, polyamide wax powder, etc. as anti-sagging agents. These traditional thixotropic agents are added in large amounts. High shear force is required to disperse evenly during production, which requires high production equipment. At present, the general equipment for producing anti-sagging coatings is a double planetary dispersion kettle, which has high equipment cost, small effective production volume, low production efficiency, and troublesome production operations. , and these anti-sagging additives need to be dehydrated and dried separately before use, which is very troublesome to operate and causes dust pollution problems

Method used

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  • Anti-sagging thermal-insulation self-cleaning coating for building external wall and preparation method thereof
  • Anti-sagging thermal-insulation self-cleaning coating for building external wall and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An anti-sag heat preservation self-cleaning coating for building exterior walls, comprising the following parts by weight: 60 parts of silicone acrylic emulsion, 40 parts of elastic emulsion, 15 parts of polyacrylamide, 6 parts of prefabricated fiber coating material, sodium humate 4 parts, 4 parts of expanded vermiculite, 10 parts of filler, 4 parts of additives, 10 parts of water.

[0027] in:

[0028] The prefabricated fiber covering material includes the following components in mass percentage: 10% of polyamide short fiber, 30% of nano silicon oxide, 4% of nano zinc oxide, 0.8% of hydrogenated polydimethylsiloxane, 0.4% of cocoamide monoethanolamine %, polyethylene glycol solution balance.

[0029] The preparation method of the prefabricated fiber covering material is as follows: add short polyamide fibers into an appropriate amount of polyethylene glycol solution, heat and stir at 45-50°C for 2 hours, then add cocoamide monoethanolamine, and continue stirring for ...

Embodiment 2

[0038] An anti-sagging, thermal insulation and self-cleaning coating for building exterior walls, comprising the following parts by weight: 80 parts of silicone acrylic emulsion, 50 parts of elastic emulsion, 20 parts of polyacrylamide, 10 parts of prefabricated fiber coating material, sodium humate 6 parts, expanded vermiculite 5 parts, filler 15 parts, additives 4 parts, water 20 parts.

[0039] in:

[0040] The prefabricated fiber covering material includes the following components in mass percentage: 15% of polyamide short fiber, 25% of nano silicon oxide, 2% of nano zinc oxide, 1.2% of hydrogenated polydimethylsiloxane, 0.8% of cocoamide monoethanolamine %, polyethylene glycol solution balance.

[0041] The preparation method of the prefabricated fiber covering material is as follows: add short polyamide fibers into an appropriate amount of polyethylene glycol solution, heat and stir at 45-50°C for 1.5 hours, then add cocoamide monoethanolamine into it, and continue stir...

Embodiment 3

[0046] An anti-sag heat preservation self-cleaning coating for building exterior walls, comprising the following parts by weight: 100 parts of silicone acrylic emulsion, 50 parts of elastic emulsion, 15 parts of polyacrylamide, 15 parts of prefabricated fiber coating material, sodium humate 6 parts, 3 parts of expanded vermiculite, 20 parts of filler, 3 parts of auxiliary agent, 30 parts of water.

[0047] in:

[0048] The prefabricated fiber covering material includes the following components in mass percentage: polyamide short fiber 15%, nano silicon oxide 20%, nano zinc oxide 1%, hydrogenated polydimethylsiloxane 0.8%, cocoamide monoethanolamine 0.3 %, polyethylene glycol solution balance.

[0049] The preparation method of the prefabricated fiber covering material is as follows: add short polyamide fibers into an appropriate amount of polyethylene glycol solution, heat and stir at 45-50°C for 1 hour, then add cocoamide monoethanolamine, and continue stirring for 50 minute...

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Abstract

The invention provides an anti-sagging thermal-insulation self-cleaning coating for a building external wall and a preparation method thereof. The coating comprises the following components in parts by weight: 50-100 parts of silicone acrylic emulsion, 40-60 parts of elastic emulsion, 5-20 parts of polyacrylamide, 6-15 parts of prefabricated fiber coating material, 4-10 parts of sodium humate, 3-5parts of expanded vermiculite, 10-22 parts of filler, 1-5 parts of auxiliary agent and 10-30 parts of water. The raw materials are selected and proportioned reasonably and the leveling property and the sagging resistance of the coating are effectively balanced; meanwhile, the coating has excellent waterproof, dustproof, heat preservation, weather resistance, ultraviolet resistance and other properties and the mechanical property is also obviously improved; in addition, the coating has excellent adhesion and film-forming properties, the coating stability is high, stripping resistance and cracking resistance are high, the comprehensive efficiency improvement degree is high the effective service life is prolonged by 3-5 times and the coating is worthy of popularization and application.

Description

technical field [0001] The invention relates to the technical field of exterior wall coatings, in particular to an anti-sag heat preservation self-cleaning coating for building exterior walls and a preparation method thereof. Background technique [0002] Paint is coated on the surface of the object to be protected or decorated, and can form a continuous film firmly attached to the object to be coated, usually based on resin, or oil, or emulsion, with or without adding pigments, fillers, adding The corresponding additives are viscous liquids prepared with organic solvents or water. This material can be coated on the surface of objects by different construction techniques to form a continuous solid film with strong adhesion and certain strength. The film formed in this way is commonly called a coating film, also known as a paint film or a coating. In the early days, most of the paints used vegetable oil as the main raw material, so they were called "paints". Whether it is ...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D201/00C09D5/16C09D7/61C09D7/63C09D7/65C09D7/62
CPCC08K2003/2296C08K2201/011C08L2205/035C08L2205/16C09D5/1668C09D5/1687C09D143/04C08L101/00C08L33/26C08L77/00C08L83/04C08L71/02C08L97/005C08K13/02C08K3/22C08K3/36C08K5/20
Inventor 郑西
Owner 安徽旭通网络科技有限公司
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