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Natural mixture dry powder paint for external walls and preparation method thereof

A technology for dry powder coatings and mixtures, applied in the field of natural mixture dry powder coatings, can solve the problems of inability to spray, foam and de-powder, pollute the atmospheric environment, etc., and achieve the effect of saving material costs and enhancing adhesion.

Active Publication Date: 2014-09-17
BEIJING SAIDELI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the solvent-based coatings used for building construction and exterior walls have two major disadvantages. One is that the coating has low adhesion to the cement base, and the smoothness is poor. It is necessary to put a primer or primer on the cement base; and the durability is poor. It is easy to crack, foam and depowder, and cannot be directly sprayed on the cement concrete base; the second is the soluble glue used in the coating, which increases the emission of VOC, pollutes the atmospheric environment, and brings harm to human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The coating composition of this implementation is white silicate clinker 35% (weight), barium sulfate 5% (weight), gypsum 5% (weight), cornstarch 5% (weight), calcium lignosulfonate 2% (weight) ), put into a special grinding machine, grind 650 orders and then white stone powder 45% (weight), lime (calcium carbonate) 10% (weight), active dicalcium silicate 5-10% (weight), Pengrun soil 5% ( weight ratio), additionally grind to 400 mesh, and mix and stir the ground components evenly. The effect is good, the whitening is uniform and bright.

Embodiment 2

[0011] Put the components of Example 1 into the grinder at one time, grind to 400 mesh, and mix and stir evenly.

[0012] After use, the effect is whitening and foaming.

Embodiment 3

[0014] The coating of the present embodiment consists of white silicate clinker 45% (weight), gypsum 5% (weight), calcium lignosulfonate 3% (weight), active dicalcium silicate 5-10% (weight), Put into the grinder in proportion, grind to 1200 mesh, then put white stone powder 30% (weight), Pengrun soil 5% (weight), lime 10% (weight), drop into another grinder according to composition, grind to 500 mesh. Put the binomial milled components into the mixer and mix them evenly.

[0015] After use, the whiteness is darker than Example 1. When using it, add 1 / 3 more specific water than Example 1, and the adhesion is the same.

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PUM

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Abstract

The invention relates to a natural mixture dry powder paint for external walls and a preparation method thereof. The natural mixture dry powder paint for external walls is characterized by comprising the following components in percentage by weight: 30-65% of white silicate clinker, 20-50% of white stone powder, 3-5% of plaster, 5-10% of calcium silicate, assistants, 2-5% of calcium lignosulphonate,. The materials are ground to 400-1200 meshes and the dry powder package is carried out to obtain the finished product. Production and use of the paint solves the defect that the solvent-type paint uses massive gelatine powder so that organic pollution gases are discharged to the atmospheric environment, thereby playing an important role in protecting atmospheric environment.

Description

Technical field: [0001] The invention relates to a natural mixture dry powder coating for spraying building exterior walls or concrete bases. Background technique: [0002] At present, the solvent-based coatings used for building construction and exterior walls have two major disadvantages. One is that the coating has low adhesion to the cement base, and the smoothness is poor. It is necessary to put a primer or primer on the cement base; and the durability is poor. It is easy to crack, foam and depowder, and cannot be directly sprayed on the cement concrete base; the second is the soluble glue used in the coating, which increases the emission of VOC, pollutes the atmospheric environment, and brings harm to human health. Aiming at the above-mentioned shortcomings existing in current coatings, a natural mixture exterior wall dry powder coating has been developed and produced. Invention content: [0003] The purpose of the present invention is to provide a cement wall base ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B14/06C04B14/12C04B24/18
Inventor 沈礼群
Owner BEIJING SAIDELI TECH
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