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Construction method of composite coating and wall

A composite coating and aggregate technology, applied in the field of composite coating and wall construction, can solve the problems of top paint pollution, labor cost increase, wall hollowing, etc., to improve the degree of gelation and stability, and reduce construction roads Number, cost-saving effect

Active Publication Date: 2022-07-15
ZHEJIANG TRANSFER PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the construction process, there are many construction passes. For example, when using putty powder for leveling and lightening, the number of construction passes is generally 2 to 4 depending on the condition of the mortar layer, plus alkali-resistant sealing primer and colored primer. The number of constructions is between 4 and 6, resulting in a substantial increase in labor costs
[0003] At the same time, putty powder uses cement as a binder, which has strong rigidity and is easy to crack. Once water seeps, it will cause alkali return, resulting in hollowing on the wall, paint pollution and other paint problems.

Method used

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  • Construction method of composite coating and wall
  • Construction method of composite coating and wall
  • Construction method of composite coating and wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] In terms of mass percentage, the composition of the composite coating in this example includes: 10% water, 0.3% hydroxyethyl cellulose (30,000 viscosity) HD-30000; 0.1% co-dispersant APM-95, 0.2% Wetting and dispersing agents PE-100 and 5027, 0.15% defoamer NXZ, 0.5% titanium dioxide R996, 10% acrylate copolymer emulsion (Tg is 25℃, latex particle size is 50μm~120μm), 5% of acrylate elastic emulsion (Tg is -5℃, particle size of latex is 80μm~200μm), 5% of silica sol CH-83, 0.5% of film-forming aid dodecyl alcohol ester, 0.5% of Propylene glycol, 0.15% bactericidal preservatives WL-3 and WL-86, 30% 50-60 mesh round sand, 37% 150-mesh quartz sand, 0.4% thickener DR-72, 0.2% water-based color paste.

[0065] The preparation method of the composite coating is as follows: adding hydroxyethyl cellulose in water, adding co-dispersant dropwise after complete dispersion, then adding wetting and dispersing agent, defoamer, titanium dioxide, acrylate copolymer emulsion and acryla...

Embodiment 2

[0068] In terms of mass percentage, the composition of the composite coating in this embodiment includes: 10% water, 0.3% hydroxyethyl cellulose (30,000 viscosity) HBR-250; 0.1% co-dispersant APM-95, 0.2% Wetting and dispersing agents PE-100 and 5027, 0.15% defoamer MX-68, 0.5% titanium dioxide R996, 10% acrylate copolymer emulsion (Tg is 25 ℃, the particle size of the latex is 50μm ~ 120μm ), 5% acrylate elastic latex (Tg is -5°C, particle size of latex is 80μm~200μm), 5% silica sol BS620, 0.5% film-forming aid dodecyl ester, 0.5% Propylene glycol, 0.15% bactericidal preservatives WL-3 and WL-86, 30% 80-120-mesh round sand, 37% 200-mesh ground calcium carbonate, 0.4% thickener DR-72 and D- 305, 0.2% water-based color paste.

[0069] The preparation method of the composite coating is as follows: adding hydroxyethyl cellulose in water, adding co-dispersant dropwise after complete dispersion, then adding wetting and dispersing agent, defoamer, titanium dioxide, acrylate copolym...

Embodiment 3

[0072] In terms of mass percentage, the composition of the composite coating in this embodiment includes: 10% water, 0.3% hydroxyethyl cellulose (30,000 viscosity) HBR-250; 0.1% co-dispersant APM-95, 0.2% Wetting and dispersing agents PE-100 and 5027, 0.15% antifoaming agent SN-345, 0.5% titanium dioxide R-706, 10% acrylate copolymer emulsion (Tg is 25℃, particle size of latex is 50μm ~120μm), 5% acrylate elastic emulsion (Tg is -5℃, particle size of latex is 80μm~200μm), 5% silica sol CH-83, 0.5% film-forming aid dodecyl ester , 0.5% propylene glycol, 0.15% bactericidal preservatives WL-3 and WL-86, 40% 150 mesh quartz sand, 12% 200 mesh quartz sand, 15% 200 mesh heavy calcium carbonate, 0.4% increase Thickeners DR-72 and D-305, 0.2% aqueous color paste.

[0073] The preparation method of the composite coating is as follows: adding hydroxyethyl cellulose in water, adding co-dispersant dropwise after complete dispersion, then adding wetting and dispersing agent, defoamer, tit...

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Abstract

The invention relates to a composite coating and a construction method for a wall surface. The composite coating comprises 11wt% to 30wt% of mixed emulsion, 40wt% to 70wt% of aggregate, 5wt% to 10wt% of silica sol, and 10wt% to 15wt% of silica sol. % of water and the balance of auxiliary agents; wherein, the mixed emulsion includes acrylate copolymer emulsion and acrylate elastic emulsion, and the difference between the maximum particle size and the minimum particle size of the first latex in the acrylate copolymer emulsion is ≤70 μm, The difference between the maximum particle size and the minimum particle size of the second latex in the acrylic elastic emulsion is less than or equal to 120 μm, and the difference between the minimum particle size of the first latex and the maximum particle size of the second latex is less than or equal to 150 μm. When the composite coating of the invention is applied to the wall surface, the formed composite coating layer has good leveling, light-seeking and sealing functions, and can also be used for coloring, so it can effectively replace the leveling putty and light-seeking in traditional architectural coatings. Putty, alkali-resistant sealing primer and colored intermediate paint reduce the number of construction passes on the wall, shorten the construction period and save costs.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a composite coating and a construction method for wall surfaces. Background technique [0002] The traditional wall construction methods include: using plastering mortar to form a mortar layer on the surface of the wall, then using putty powder on the surface of the mortar layer for leveling, light finding and alkali-resistant sealing primer for sealing, and then according to the requirements of the process system. Lacquer and topcoat construction. During the construction process, there are many construction passes. For example, when using putty powder for leveling and light finding, the number of construction passes is generally 2 to 4 passes depending on the condition of the mortar layer, plus alkali-resistant sealing primer and colored medium paint. The number of construction lanes is 4 to 6 lanes, resulting in a substantial increase in labor costs. [0003] At the same tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/24E04F13/02
CPCC04B28/24E04F13/02C04B2111/00482C04B2201/50C04B24/383C04B2103/408C04B2103/50C04B22/06C04B24/2641C04B24/045C04B24/026C04B2103/67C04B14/06C04B2103/44C04B2103/54
Inventor 周超群吴勇邓必肯陈亚军刘鹏
Owner ZHEJIANG TRANSFER PAINT CO LTD
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