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Primer-topcoat coating and preparation method thereof

A technology of bottom surface and coating, applied in the direction of coating, etc., can solve the problems of weak adsorption capacity of coating and substrate, poor film-forming compactness and wear resistance, and difficulty in taking into account the compactness and wear resistance characteristics, etc., to achieve excellent adsorption capacity, Less painting process, excellent waterproof effect

Inactive Publication Date: 2021-06-25
GUANGZHOU HAOTE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When developing a base-surface-in-one coating, it is often difficult to balance the adsorption characteristics required by the primer and the substrate with the dense wear-resistant characteristics that the topcoat should possess, resulting in weak adsorption capabilities between the coating and the substrate after coating, and poor film-forming effect. Poor, poor film density and wear resistance, prone to shedding, aging, cracking and other problems

Method used

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  • Primer-topcoat coating and preparation method thereof
  • Primer-topcoat coating and preparation method thereof
  • Primer-topcoat coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0024] A bottom-surface all-in-one paint, which is prepared by the following components and mass ratio: water 10-14%; propylene glycol 1.2%-1.5%; dispersant 1.3%-1.5%; anionic surfactant 0.15%-2% ; defoamer 0.4%-0.5%; cellulose 0.2%-0.25%; pH regulator 0.1%-0.2%; titanium dioxide 18%-20%; calcined kaolin 7.5%-8%; ;Functional emulsion 45%-50%; Antifungal agent 0.2%-0.3%; Coating agent 2.5%-3%; Thickener 0.15%-0.2%; Preservative 0.1%-0.2%; Silane coupling agent 0.3%-0.5%.

[0025] A method for preparing a bottom-surface-integrated coating, comprising the following steps in sequence:

[0026](1) Under the condition that the stirring speed is 700-900 rpm, 10-14% water, 1.2%-1.5% propylene glycol, 1.3%-15% dispersant, 0.15%-2% anionic surfactant, Put 0.4%-0.5% defoamer, 0.2%-0.25% cellulose, and 0.1%-0.2% pH regulator into the production tank, and stir for 10-15 minutes;

[0027] (2) Increase the stirring speed to 1500-1800 rpm, add 18%-20% titanium dioxide, 7.5%-8% calcined kao...

specific Embodiment 1

[0033] A kind of base and surface all-in-one coating, which is prepared from the following components and mass ratios:

[0034] Water 10%, propylene glycol 1.2%, dispersant 1.5%, anionic surfactant 0.2%, defoamer 0.5%, cellulose 0.2%, pH adjuster 0.2%

[0035] Titanium dioxide 18%, calcined kaolin 7.5%, barium sulfate 6.5%, functional emulsion 50%, antifungal agent 0.3%, film-forming aid 3%, thickener 0.2%, preservative 0.2%, silicon coupling alkane agent 0.5%.

[0036] A method for preparing a bottom-surface-integrated coating, comprising the following steps in sequence:

[0037] (1) Under the condition that the stirring speed is 800 rpm, 10% water, 1.2% propylene glycol, 1.5% dispersant, 0.2% anionic surfactant, 0.5% defoamer, 0.2% cellulose, 0.2% Put the pH regulator into the production tank and stir for 10 minutes;

[0038] (2) Increase the stirring speed to 1500 rpm, add 18% titanium dioxide, 7.5% calcined kaolin, and 6.5% barium sulfate in sequence, stir for 30 minute...

specific Embodiment 2

[0041] A kind of base and surface all-in-one coating, which is prepared from the following components and mass ratios:

[0042] Water 11.25%, propylene glycol 1.5%, dispersant 1.4%, anionic surfactant 0.1%, defoamer 0.5%, cellulose 0.2%, pH adjuster 0.2%

[0043] Titanium dioxide 19%, calcined kaolin 7.5%, barium sulfate 9.3%, functional emulsion 45%, antifungal agent 0.3%, film-forming aid 3%, thickener 0.15%, preservative 0.2%, silicon coupling alkane agent 0.4%.

[0044] A method for preparing a bottom-surface-integrated coating, comprising the following steps in sequence:

[0045] (1) Under the condition that the stirring speed is 700 rpm, 11.25% water, 1.5% propylene glycol, 1.4% dispersant, 0.1% anionic surfactant, 0.5% defoamer, 0.2% cellulose, 0.2% Put the pH regulator into the production tank and stir for 12 minutes;

[0046] (2) Increase the stirring speed to 1600 rpm, add 19% titanium dioxide, 7.5% calcined kaolin, and 9.3% barium sulfate in sequence, stir for 35...

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Abstract

The invention relates to the technical field of coatings, and discloses a primer-topcoat coating and a preparation method thereof, the primer-topcoat coating comprises the following components by mass: 10-14% of water; 1.2%-1.5% of propylene glycol; 1.3%-1.5% of a dispersing agent; 0.15%-2% of an anionic surfactant; 0.4%-0.5% of a defoaming agent; 0.2%-0.25% of cellulose; 0.1%-0.2% of a pH regulator; 18%-20% of titanium dioxide; 7.5%-8% of calcined kaolin; 6.5%-9.5% of barium sulfate; 45%-50% of a functional emulsion; 0.2%-0.3% of a mildew preventive; 2.5%-3% of a coalescing agent; 0.15%-0.2% of a thickening agent; 0.1%-0.2% of a preservative; and 0.3%-0.5% of a silane coupling agent. The primer-topcoat coating has excellent adsorption characteristic and film forming effect, can be suitable for wall base materials such as coarse porous concrete, cement mortar, red bricks, glass with smooth surfaces, ceramic tiles and the like, reduces coating procedures, and improves coating efficiency.

Description

technical field [0001] The invention belongs to the technical field of coatings for architectural decoration, in particular to a bottom-surface-integrated coating and a preparation method thereof. Background technique [0002] The base material of building wall is mostly cement mortar or concrete surface, which is characterized by many voids, and the porous structure has strong water absorption. Causes cracking of the topcoat. Therefore, the traditional wall painting needs to scrape the putty surface in batches, make primer, middle coat, top coat, etc., and when selecting primer and top coat, necessary matching tests must be carried out. There is good adhesion between the coatings. It is also necessary to ensure that the topcoat coating will not cause problems such as undercutting and air bubbles with the primer. The process is complicated, the maintenance time is long, and labor and material consumption are required. [0003] When the bottom and surface are combined, ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/61C09D7/65C09D7/63
CPCC09D133/04C09D7/61C09D7/65C09D7/63C08K2003/2241C08K2003/3045
Inventor 符思廖位红傅国景梁巧敏
Owner GUANGZHOU HAOTE CHEM CO LTD
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