Formaldehyde and odor-removing interior wall paint based on diatomite ultrafine powder and preparation method thereof

Abstract

The invention provides a diatomite micropowder-based interior wall paint capable of removing formaldehyde and peculiar smell in indoor air and a preparation method thereof, belonging to the field of diatom nano-materials. The diatomite micropowder-based interior wall paint provided by the invention overcomes the problems of low purifying efficiency and short-term purifying effect of toxic gas like formaldehyde in conventional interior wall paints, no release of negative ions, poor antibacterial and mildew-resistant effects and high cost in the prior art. The diatomite micropowder-based interior wall paint comprises, by weight, 30 to 40 parts of diatomite micropowder, 10 to 20 parts of a nanometer titanium dioxide / diatomite composite photocatalysis material, 11 to 21 parts of calcined kaolin, 5 to 15 parts of heavy calcium carbonate, 2 to 8 parts of light calcium carbonate, 0.5 to 2 parts of cellulose ether, 1 to 3 parts of lignocellulose, 1 to 5 parts of redispersible latex powder and 7 to 17 parts of white cement. The interior wall paint has formaldehyde and toluene purifying efficiency of 86.8 to 88.2% and 52.1 to 54.2%, respectively, formaldehyde and toluene purifying effect persistence of 72.8 to 74.0% and 34.8 to 36.0%, respectively, an average negative ion increasing amount of 126 to 131 / s.cm2 and an antibacterial rate of 92 to 94%.

Description

technical field [0001] The invention belongs to the technical field of diatom nanomaterials, and in particular relates to a diatomite ultrafine powder-based interior wall coating for removing formaldehyde and peculiar smell in indoor air and a preparation method thereof. Background technique [0002] With the continuous improvement of people's living standards, decoration will be chosen when purchasing or building a new house. Water-based latex paint for interior walls is an essential material for decoration, and can also be used as ceiling paint to decorate and protect interior walls and ceilings. With the enhancement of people's awareness of environmental protection, the requirements for interior wall water-based latex coatings for decoration are getting higher and higher, and the polyvinyl formal coatings with relatively high formaldehyde emission have been gradually eliminated. More and more environmentally friendly interior wall coatings based on volatile organic compo...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of existing interior wall coatings such as formaldehyde and other toxic gases in the purification efficiency and persistence of the purification effect are low, negative ions will not be released, the antibacterial and antifungal effects are poor, and the cost is high. Fine powder interior wall paint for removing formaldehyde and peculiar smell in indoor air and preparation method thereof

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