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Alkali-resistant primer and preparation method thereof

An anti-alkali primer and emulsion technology, which is applied in the field of architectural decoration coatings, can solve the problems of inability to prevent alkali return and no sealing effect, and achieve the effects of penetrating ability, preventing wall return to alkali, and strong adhesion

Active Publication Date: 2017-11-21
SKSHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since most primers are opaque white paints, they have a certain anti-alkali effect, but they have no sealing effect and cannot prevent alkali return

Method used

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  • Alkali-resistant primer and preparation method thereof
  • Alkali-resistant primer and preparation method thereof
  • Alkali-resistant primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0028] An anti-alkali primer, prepared from the following components and ratios in parts by weight:

[0029]

[0030] The emulsion is butadiene-styrene copolymer emulsion.

[0031] A kind of preparation method of anti-alkali primer, it comprises the following steps carried out in sequence:

[0032] (1) Add 29-36 parts of water into the dispersing tank, add 0.5-0.6 parts of hydroxyethyl cellulose and 0.1-0.2 parts of water-based multifunctional additives in turn under the stirring state of 350-550r / min, and stir for 1min-3min ;

[0033] (2) After increasing the rotating speed to 800-1000r / min, add 0.5-0.7 parts of water-based dispersant, 0.1-0.2 parts of water-based wetting agent, 0.35-0.4 parts of water-based defoamer, 1-10 parts of titanium dioxide, 10 -After 15 parts of mica powder, 5-10 parts of talc powder, and 10-15 parts of calcium carbonate, increase the speed again to 1800-2000r / min and disperse at this speed for 15min-20min, then test until the system fineness≤60...

Embodiment 1

[0037] Embodiment 1: a kind of anti-alkali primer, is formulated by following component and weight and number ratio:

[0038]

[0039] A kind of preparation method of anti-alkali primer, it comprises the following steps carried out in sequence:

[0040] (1) Add 32.1 parts of water into the dispersing tank, add 0.5 parts of hydroxyethyl cellulose and 0.1 parts of water-based multifunctional additives in sequence under stirring at 550r / min, and stir for 1 minute;

[0041] (2) After increasing the speed to 1000r / min, add 0.6 parts of water-based dispersant, 0.1 part of water-based wetting agent, 0.35 parts of water-based defoamer, 5 parts of titanium dioxide, 12 parts of mica powder, 8 parts of talc powder, 15 parts After adding calcium carbonate, increase the rotating speed to 2000r / min and disperse at this rotating speed for 15min, then detect until the system fineness≤60;

[0042](3) Add 23 parts of emulsion, 1.5 parts of film-forming aids, 1.5 parts of antifreeze, and 0.2...

Embodiment 2

[0044] Embodiment 2: a kind of anti-alkali primer, is formulated by following component and weight and number ratio:

[0045]

[0046] The preparation method of above-mentioned anti-alkali primer, it comprises the following steps carried out in sequence:

[0047] (1) Add 36 parts of water into the dispersion tank, add 0.5 part of hydroxyethyl cellulose and 0.1 part of water-based multifunctional additive in sequence under stirring at 350r / min, and stir for 3 minutes;

[0048] (2) After increasing the speed to 800r / min, add 0.5 parts of water-based dispersant, 0.1 part of water-based wetting agent, 0.38 parts of water-based defoamer, 1 part of titanium dioxide, 15 parts of mica powder, 10 parts of talc powder, 14 parts After adding calcium carbonate, increase the rotating speed to 1800r / min and disperse at this rotating speed for 20min, then detect until the fineness of the system is ≤60;

[0049] (3) Add 20 parts of emulsion, 1.0 part of film-forming aid, 1.2 part of antif...

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Abstract

The invention relates to an alkali-resistant primer and a preparation method thereof. The alkali-resistant primer is prepared from the following components in parts by weight: water, hydroxyethyl cellulose, water-based multifunctional assistant, water-based dispersing agent, water-based wetting agent, water-based defoaming agent, titanium white, mica powder, talcum powder, calcium carbonate, emulsion, film forming assistant, antifreezing agent and sterilizing preservative. The emulsion is a butadiene-styrene copolymer emulsion. The alkali-resistant primer has alkali-resistant and sealing functions, and can effectively prevent the wall from alkali efflorescence.

Description

technical field [0001] The invention relates to a coating for architectural decoration, in particular to an alkali-resistant primer and a preparation method thereof. Background technique [0002] The number of buildings using exterior wall coatings is increasing day by day, and some walls have problems such as peeling, blistering, bursting, and discoloration, which affect the use effect of exterior wall coatings. The reason, in addition to the quality of the paint, is mostly caused by the lack of understanding of the primer or the incorrect use of it. The base material of building exterior walls is mostly cement mortar or concrete surface, which is characterized by many pores and strong alkalinity. The porous structure makes the water absorption strong, which makes the surface of the coating not smooth enough, which easily causes the coating film to wrinkle, and may cause the coating If the film dries too fast, it will cause the topcoat to crack and waste the topcoat; stron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D109/06C09D5/14C09D7/12
CPCC08K2003/2241
Inventor 洪杰何玲玲张伟覃国生
Owner SKSHU PAINT
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