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Acidproof latex paint and preparation method thereof

A latex paint and emulsion technology, applied in the field of building decoration materials, can solve the problem of lack of acid resistance, and achieve the effects of good stain resistance, reduced dosage, and improved adhesion

Inactive Publication Date: 2010-09-29
蒋江峰 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is precisely because the existing water-based latex paints at home and abroad do not have the characteristics of acid resistance. Therefore, the inspection items for acid resistance indicators are not included in the standards of national latex paints, and the same is true for international standards such as the United States.

Method used

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  • Acidproof latex paint and preparation method thereof
  • Acidproof latex paint and preparation method thereof

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preparation example Construction

[0030] A preparation method for acid-resistant latex paint, it comprises the following steps:

[0031] a) using a batching tank, under the state of stirring at a rotating speed of 200 rpm, add an appropriate amount of dispersant, propylene glycol, defoamer and water in the raw materials in turn to reconcile;

[0032] b) After that, increase the speed to 400-500 rpm, and continue to stir for about 20 minutes until the additives are evenly dispersed;

[0033] c) under the state of stirring at a rotating speed of 400 r / min, slowly and appropriately add the quartz powder and titanium dioxide in the raw materials according to the amount;

[0034] d) After that, increase the speed to 1000-1200 rpm, and continue to stir for 30-40 minutes; then pump it into a sand mill and grind it to the required fineness; that is, the white paste for coating is obtained;

[0035] e) In the paint mixing tank, at a stirring speed of 400 rev / min, sequentially add an appropriate amount of the emulsion,...

Embodiment 1

[0039] The weight percentage of acid-resistant latex paint raw material of the present invention is: dispersant 0.5%, propylene glycol 2.5%, defoamer 1%, titanium dioxide 15%, quartz powder (SiO 2 ) 28.5%, emulsion 21%, coalescent 2.5%, thickener 2%, water 27%.

[0040] Production can be done in the following steps:

[0041] a) Using a special paint mixing tank, add 27% of water, 0.5% of dispersant, 2.5% of propylene glycol, and 1% of defoamer in the above raw materials in order to blend under the state of stirring at a rotating speed of 200 rpm;

[0042] b) After that, increase the speed to 400 rpm, and continue to stir for 20 minutes until the additives are evenly dispersed;

[0043] c) under the state of stirring at a rotating speed of 400 rpm, slowly add 28.5% of quartz powder and 15% of titanium dioxide in the above raw materials according to the amount;

[0044] d) Afterwards, increase the speed to 1000 rpm, and continue stirring for 30 minutes; then pump it into a san...

Embodiment 2

[0049] The weight percent of acid-resistant latex paint raw material of the present invention is: dispersant 2%, propylene glycol 1%, defoamer 0.05%, titanium dioxide 8%, quartz powder (SiO 2 ) 44%, emulsion 15%, coalescent 0.5%, thickener 0.5%, water 28.95%.

[0050] Production can be done in the following steps:

[0051]a) Using a batching tank, under the state of stirring at a rotating speed of 200 rpm, add 28.95% of water, 2% of dispersant, 1% of propylene glycol, and 0.05% of defoamer in the above raw materials in order to reconcile;

[0052] b) After that, increase the speed to 500 rpm and continue stirring for 25 minutes until the additives are evenly dispersed;

[0053] c) under the state of stirring at a rotating speed of 400 rpm, slowly add 44% of quartz powder and 8% of titanium dioxide in the above raw materials according to the amount;

[0054] d) Afterwards, increase the speed to 1200 rpm, and continue to stir for 40 minutes; then pump it into a sand mill for g...

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Abstract

The invention discloses an acidproof latex paint and a preparation method thereof. The acidproof latex paint is prepared by blending the following raw materials in percentage by weight: 0.5 to 2 percent of dispersing agent, 1 to 2.5 percent of propylene glycol, 0.05 to 1 percent of defoaming agent, 8 to 15 percent of titanium white, 20 to 44 percent of silica flour, 15 to 27 percent of emulsion, 0.5 to 2.5 percent of film-forming aid, 0.5 to 2 percent of thickening agent and the balance of water. The preparation method comprises the following steps of: adding the water, dispersing agent, propylene glycol and defoaming agent into a material tank at a speed of 200 rpm, improving the speed to 400 rpm, and stirring for 20 minutes until the aid is dispersed; adding the silica flour and the titanium white; improving the speed to 1,000 rpm, and stirring for 30 minutes; grinding to obtain white pulp; adding the emulsion into a paint tank, and adding the film-forming aid and the thickening agent; stirring 20 minutes to obtain a base material; slowly adding the white pulp under the same working condition, stirring for 15 minutes, filtering, canning and warehousing.

Description

technical field [0001] The invention belongs to the technical field of building decoration materials, and relates to a wall paint for interior walls or exterior walls, in particular to an acid-resistant latex paint and a preparation method thereof. Background technique [0002] Most wall paints in the prior art use raw materials such as calcium carbonate as fillers, and calcium carbonate has the characteristic of chemical reaction when it encounters acid. With the continuous deterioration of human living environment and the continuous increase of acid rain, the durability of coatings is getting worse and worse, which has seriously affected the decorative effect of buildings, especially exterior walls. [0003] People in the industry know that the basic composition of latex paint generally includes 1. Base material: emulsion; 2. Pigment: titanium dioxide, color paste; 3. Filler: calcium carbonate, talcum powder, etc.; Wetting and dispersing agent, film-forming aid, thickener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D201/00C09D7/12C09D5/02
Inventor 蒋江峰郭茂祥齐树忠
Owner 蒋江峰
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