Anti-cracking color retention VOC-free (Volatile Organic Compounds) and zero-alkali-return aqueous dry powder building colored coating

Abstract

The invention relates to an anti-cracking color retention VOC-free (Volatile Organic Compounds) zero-alkali-return aqueous dry powder building colored coating which comprises the following substances in percentage by weight: 20-40% of low-alkali cementing agent, 50-60% of colored sand, 4-9% of sepiolite powder, 0.01-0.015% of plasticizing agent, 0.05% of high-strength adhesive, 3-9% of redispersible latex powder, 0.01% of water repellent, 0-0.1% of antalkaline, 0.01-0.02% of powdered dispersing agent, 0-0.02% of powdered defoaming agent and 0.8-2% of inorganic pigment. The anti-cracking color retention VOC-free zero-alkali-return aqueous dry powder building colored coating is compounded by utilizing the compatibility principle of various powder raw materials and a scientific formula. The anti-cracking color retention VOC-free zero-alkali-return aqueous dry powder building colored coating has the advantages of strong base wall adhesive force, strong weather resistance, zero alkali return and bright color, no cracks or light pollution is generated, and the service life of the coating is as long as that of a building. The anti-cracking color retention VOC-free zero-alkali-return aqueous dry powder building colored coating is mainly applied to the decorative finish of civil building alternative brick surfaces and the latex coating decorative finish and belongs to a novel environment-friendly and energy-saving material.

Description

technical field [0001] The invention relates to a dry powder coating for the construction industry, in particular to a crack-proof, color-preserving, zero-VOC, and zero-return alkali water-based dry powder architectural color coating, which belongs to the field of building materials. Background technique [0002] With the vigorous development of my country's construction industry, various exterior (interior) wall facing materials emerge in endlessly. The early brick facings accounted for nearly 90% of the market share. Later, there were many deficiencies in use, such as: falling off, high points When it falls off, it is easy to hurt people and crack, the construction and maintenance costs are high, and it is even more difficult to replace the finish. The city looks like a day for decades. Later, the national and regional governments took corresponding measures according to the actual conditions of each region, and successively launched emulsion paints (originated in Japan). A...

AI Technical Summary

Problems solved by technology

[0002] With the vigorous development of my country's construction industry, various exterior (interior) wall facing materials emerge in endlessly. The early brick facings accounted for nearly 90% of the market share. Later, there were many deficiencies in use, such as: falling off, high points It is easy to hurt people when it falls off, and it is easy to crack. The construction and maintenance costs are high, and it is even more difficult to replace the finish. The city looks like a day for decades.

Later, the national and regional governments took corresponding measures according to the actual conditions of each region, and successively launched emulsion paints (originated in Japan). Although some of the above-mentioned shortcomings were overcome, there were also many problems in use. Thin, insufficient anti-cracking, easy to stain, especially elastic coatings are more prone to staining, difficult to balance elasticity and stain resistance, easy to fade, poor weather resistance, and a certain amount of light pollution, difficult to meet the requirements of high-end finishes, construction and use There are VOC gases in it, which affect human health