Method for producing white dry powder building coating base stock

A technology for architectural coatings and white pigments, applied in the production field of white dry powder architectural coatings base materials, can solve the problems of high color uniformity requirements, poor color management, low production capacity, etc., and achieve the effect of controllable production quality and increased production capacity

Inactive Publication Date: 2013-04-10
SHANGHAI GIANT ENERGY SAVING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Those skilled in the art know that in addition to the basic components of the paint, the paint generally also includes pigments to obtain the desired color, but due to the particularity of the dry powder paint product (such as multi-color varieties, high color uniformity requirements, and many changes in raw material types) , large differences, etc.), different batches of dry powder coatings are prone to poor color chroma
The existing production process of dry powder coatings generally adopts a batch-mixing packaging process, and the differences between different batches are marked separately. This batch packaging method h

Method used

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  • Method for producing white dry powder building coating base stock

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The basic components include cement, powdered calcium carbonate (300 mesh in particle size), water reducing agent, and redispersible latex powder. Weigh the materials according to the weight ratio in Table 1, mix them evenly, and detect the whiteness of the basic components. The degree is 76.35.

[0040] Table 1, the weight ratio of basic components in Example 1 (unit: kg)

[0041] materials Portland cement calcium carbonate Polycarboxylate superplasticizer Redispersible latex powder weight 20 71.5 0.5 8

[0042] According to the B drawn in the above 2 For the relationship curve between W and W, find the ordinate value 20 of the point on the curve corresponding to the abscissa value of 76.35, which is the weight of the white pigment that needs to be added.

[0043] Weigh 20kg of white pigment, add it to the above-mentioned base component mixture, mix evenly, and the whiteness is 80.01, which is no obvious difference compared with the whi...

Embodiment 2

[0045] The basic components include cement, powdered calcium carbonate (300 mesh in particle size), water reducing agent, and redispersible latex powder. The materials are weighed according to the weight ratio in Table 2, mixed evenly, and the whiteness of the basic components is detected. The degree is 76.88.

[0046] Table 2, basic component material weight ratio in embodiment 2 (unit: kg)

[0047] materials Portland cement calcium carbonate Polycarboxylate superplasticizer Redispersible latex powder weight 20 71.5 0.5 8

[0048] According to the B drawn in the above 2 For the relationship curve between W and W, find the ordinate value 17 of the point on the curve corresponding to the abscissa value of 76.88, which is the weight of the white pigment that needs to be added.

[0049] Weigh 17kg of white pigment, add it to the above-mentioned base component mixture, mix evenly, and the whiteness is 80.03, which is no obvious difference compared ...

Embodiment 3

[0051] The basic components include cement, powdered calcium carbonate (300 mesh in particle size), water reducer, and redispersible latex powder. Weigh the materials according to the weight ratio in Table 3, mix them evenly, and detect the whiteness of the basic components. The degree is 77.40.

[0052] Table 3, basic component material weight ratio in embodiment 3 (unit: kg)

[0053] materials Portland cement calcium carbonate Polycarboxylate superplasticizer Redispersible latex powder weight 20 71.5 0.5 8

[0054] According to the B drawn in the above 2 For the relationship curve between W and W, find the ordinate value 10 of the point on the curve corresponding to the abscissa value of 77.40, which is the weight of the white pigment that needs to be added.

[0055] Weigh 10kg of white pigment, add it to the above-mentioned basic component mixture, mix well, and the whiteness is 70.03, which is no obvious difference compared with the whitene...

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Abstract

The invention provides a method for producing a white dry powder building coating base stock. The method comprises the following steps: by using designed whiteness of the white dry powder building coating base stock as B1, measuring whiteness B2 of base stocks formed by different coating basic components under the condition without a white pigment; measuring a weight W of the white pigment which needs to be added into the coating basic components when the B2 is regulated to the B1; making a relational graph or/and a table of the B2 and the W; providing the coating basic components, carrying out metering and mixing and measuring whiteness B3 of a mixture; and according to the relational graph or/and the table of the B2 and the W, which is made in the step 3, searching a weight Wt of the white pigment which needs to be added when the B3 is regulated to the B1, and adding Wt of white pigment to obtain the white dry powder building coating base stock with required whiteness. According to the invention, after the basic components are mixed, the pigment is added; for the prepared white dry powder building coating base stock, whiteness of each batch of products is basically kept consistent; and in addition, production quality can be controlled and yield is improved.

Description

technical field [0001] The invention relates to a production method of dry powder architectural paint, in particular to a production method of white dry powder architectural paint base material. Background technique [0002] Architectural coatings mainly refer to coatings used for building exterior walls, interior walls, ceilings, floors, etc., which have decorative, protective and residential performance improvement functions. Benzene substances, formaldehyde and other organic volatiles, organic solvents, and heavy metals in early paints have caused serious pollution to the environment and humans, and there is a risk of pollution in every link from production to use. With the advancement of technology and people's emphasis on pollution, the paint industry has entered the era of "water-based paint" from the "oil-based paint" era. [0003] At present, architectural coatings are mainly water-based coatings, and water-based coatings are coatings with water as the dispersion me...

Claims

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Application Information

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IPC IPC(8): C04B28/04
Inventor 郭四龙
Owner SHANGHAI GIANT ENERGY SAVING MATERIALS
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