Modified calcium carbonate lake mud construction material and preparing method

Abstract

The invention discloses a modified calcium carbonate lake mud construction material and a preparing method, and belongs to the technical field of construction materials. The modified calcium carbonate lake mud construction material is prepared from distilled water, modified calcium carbonate lake mud powder, hydrophilic nano titanium dioxide, polyacrylamide thickening agent, photocatalyst, heavy calcium carbonate powder, modified acrylate emulsion, palygorskite powder, polyanionic cellulose, pigment and nanometer titania modified chitosan antimicrobial preservative. The construction material is composed of scientific compatibility of green and environmentally friendly materials, and the construction material itself is safe, stable, free of poison, and free of volatile harmful gases. The construction material can not only adsorb and purify harmful gases such as formaldegyde and benzene, but also adjust indoor humidity, strengthen texture of paint covering metope, achieve sound insulation and heat preservation, eliminate peculiar smell, and achieve fire prevention and inflaming retarding; in addition, the construction material has the advantages of being low in cost, free of cracking and duslting, antiseptic and mouldproof, easy to repair and the like.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a modified calcareous lake mud building material and a preparation method thereof. Background technique [0002] With the continuous improvement of living standards, people have higher and higher requirements for the personalization of decoration and the environmental protection of materials. In the past, the combination of putty powder and latex paint used to decorate interior walls can no longer meet people's needs. Diatom mud paint has become popular, but its high price has discouraged many consumers. The release of formaldehyde and other harmful gases after house decoration lasts for weeks or even decades, seriously affecting people's lives and health. At present, there are building materials such as deodorant latex paint, aldehyde-removing latex paint, diatom mud and other building materials in the market. The deodorization and aldehyde removal mainly rely on met...

AI Technical Summary

Problems solved by technology

However, the thickness of the film after construction is relatively thin, the content of diatomite with adsorption function is low, and the actual adsorption and purification functions are limited.

The added high-PVC latex is easy to block the pores of diatomite after forming a film, making it lose or reduce the adsorption capacity, thus losing the ability to remove aldehydes

And latex paint can't form strong sense of texture, can't meet the demand to individualized decoration; CN102633475B discloses " a kind of non-gel diatom mud building material " mentions to select diatomite, kaolin, bentonite, activated clay, wheat rice Stone powder, quartz sand, sepiolite and attapulgite clay, which are porous and absorbent natural materials, can be used as decorative building materials or boards after a reasonable proportion. Bonding and forming can better maintain the porous structure of the above-mentioned natural materials. It has adsorption and moisture absorption properties, can eliminate indoor pollution, adjust indoor humidity, eliminate peculiar smell, isolate noise, have a strong sense of texture on the surface of the coating, and have the effect of fire and flame retardant.

Due to the use of the above-mentioned many ore powders without proper use of binders, after drying and weathering, the coatings that are easy to dehydrate and become hardened tend to lose their bonding effect with the wall, and problems such as cracking, falling off, and powder falling of the coating are prone to occur. Dust and other secondary pollution

However, the above-mentioned patent only uses diatomite and sepiolite with adsorption function, but does not use materials with catalytic and decomposition functions, so after its adsorption is saturated, its coating becomes a potential pollutant

Moreover, its high price has discouraged many consumers, which has ultimately led to its failure to popularize and promote.

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