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Dilution-free alkali-resistant seal primer for external wall and preparation method thereof

A sealing primer and non-dilution technology, which is applied in the direction of coating, etc., can solve the problems of unsatisfactory sealing effect of alkali-resistant sealing primer, cumbersome construction process, uncontrollable adhesion, etc., to achieve excellent water permeability, convenient construction, Guaranteed quality effect

Inactive Publication Date: 2016-03-30
SKSHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a non-dilution alkali-resistant sealing primer for exterior walls and a preparation method thereof, which solves the problems of unsatisfactory sealing effect, cumbersome and uncontrollable construction process and poor adhesion of the existing alkali-resistant sealing primer. The prepared non-diluted alkali-resistant sealing primer for exterior walls has excellent water permeability, alkali resistance, salt-out resistance, adhesion and storage stability. In addition, the viscosity of the product of the present invention is low, which can reach the viscosity for construction. Ready to use, reducing the process, further ensuring the quality of the product, and making the construction controllable

Method used

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  • Dilution-free alkali-resistant seal primer for external wall and preparation method thereof
  • Dilution-free alkali-resistant seal primer for external wall and preparation method thereof
  • Dilution-free alkali-resistant seal primer for external wall and preparation method thereof

Examples

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Effect test

specific Embodiment example 1

[0026] A non-dilution and alkali-resistant sealing primer for exterior walls, which is prepared from the following components and weight / number ratios:

[0027]

[0028] A preparation method for an exterior wall non-diluted alkali-resistant sealing primer, which comprises the following steps in sequence:

[0029] (a), add 35 parts of water into the dispersing tank, add 0.3 part of dispersant, 0.5 part of wetting agent, 0.4 part of defoamer, 0.3 part of fungicide, 0.4 part of bentonite and 0.1 part of hydroxyethyl cellulose, stirred for 1-3 minutes.

[0030] (b) Then, add 0.1 part of water-based multifunctional additive, increase the rotation speed to 600-800r / min, and stir for 1-3 minutes.

[0031] (c), then, add 20 parts of heavy calcium and 5 parts of titanium dioxide, continue to increase the speed to 1000-2000r / min, stir for 10-20 minutes, then add 34 parts of styrene-acrylic emulsion, reduce the speed to 600-1000r / min , stir for 3-5 minutes.

[0032] (d) Finally, at...

specific Embodiment example 2

[0034] A non-dilution and alkali-resistant sealing primer for exterior walls, which is prepared from the following components and weight / number ratios:

[0035]

[0036] A preparation method for an exterior wall non-diluted alkali-resistant sealing primer, which comprises the following steps in sequence:

[0037] (a), add 39 parts of water into the dispersion tank, add 0.5 part of dispersant, 0.1 part of wetting agent, 0.8 part of defoamer, 0.5 part of fungicide, 0.2 part of bentonite and 0.3 parts of hydroxyethylcellulose, stirred for 1-3 minutes.

[0038] (b) Then, add 0.3 part of water-based multifunctional additive, increase the rotation speed to 600-800r / min, and stir for 1-3 minutes.

[0039] (c), then, add 22 parts of heavy calcium and 3 parts of titanium dioxide, continue to increase the speed to 1000-2000r / min, stir for 10-20 minutes, then add 30 parts of styrene-acrylic emulsion, reduce the speed to 600-1000r / min , stir for 3-5 minutes.

[0040] (d) Finally, at...

specific Embodiment example 3

[0042] A non-dilution and alkali-resistant sealing primer for exterior walls, which is prepared from the following components and weight / number ratios:

[0043]

[0044] A preparation method for an exterior wall non-diluted alkali-resistant sealing primer, which comprises the following steps in sequence:

[0045](a), add 37 parts of water into the dispersion tank, add 0.4 parts of dispersant, 0.3 parts of wetting agent, 0.6 parts of defoamer, 0.4 parts of bactericide, 0.3 parts of bentonite and 0.2 parts of hydroxyethylcellulose, stirred for 1-3 minutes.

[0046] (b) Then, add 0.2 part of water-based multifunctional additive, increase the rotation speed to 600-800r / min, and stir for 1-3 minutes.

[0047] (c), then, add 21 parts of heavy calcium and 4 parts of titanium dioxide, continue to increase the speed to 1000-2000r / min, stir for 10-20 minutes, then add 32 parts of styrene-acrylic emulsion, reduce the speed to 600-1000r / min , stir for 3-5 minutes.

[0048] (d) Final...

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Abstract

The invention relates to a dilution-free alkali-resistant seal primer for an external wall. The dilution-free alkali-resistant seal primer for the external wall is prepared from water, a dispersing agent, a wetting agent, an anti-foaming agent, a sterilizing agent, bentonite, hydroxyethyl cellulose, water-based multi-function additives, triple superphosphate, titanium dioxide, styrene-acrylic emulsion, ethylene glycol, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, a water-based enhancer, mildew preventive and thickener. The dilution-free alkali-resistant seal primer for the external wall is excellent in water permeability, alkali resistance, salting-out resistance, adhesive force and storage stability, the water permeable rate can reach 0.1 ml, the adhesive force is level 0, saltpetering can be resisted for 72 h without abnormities, and salting-out can be resisted for 144 h without abnormities. In addition, the dilution-free alkali-resistant seal primer for the external wall is low in viscosity, the viscosity for construction can be achieved, using can be achieved after a tank for containing the seal primer is opened, the processes are reduced, construction is convenient and rapid, the quality of the product is further guaranteed, and construction is controllable.

Description

technical field [0001] The invention relates to the technical field of building exterior wall primers, in particular to a non-dilution and alkali-resistant sealing primer for exterior walls and a preparation method thereof. Background technique [0002] In the construction process of building exterior walls, problems such as peeling, bursting, and foaming on the building walls are often encountered, which easily affect the construction effect of exterior wall coatings. The reason may be that the importance of the primer has been neglected. Since the base material of the building exterior wall is mostly cement mortar or concrete surface, it is characterized by many voids and strong alkalinity. Multi-porosity has the characteristics of strong water absorption, which can easily cause the coating film to dry too quickly and cause cracking of the topcoat; while strong alkalinity can lead to chemical degradation of the resin in the coating, accelerate the aging of the coating fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D7/12
Inventor 洪杰许建明赖李芳李富强
Owner SKSHU PAINT
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