Purification formaldehyde inner wall water-resisting putty

Abstract

The invention relates to purification formaldehyde inner wall water-resisting putty. The purification formaldehyde inner wall water-resisting putty is prepared from the following raw materials in parts by weight: 100 to 200 parts of white cement, 800 parts of heavy calcium, 3 to 6 parts of dispersible rubber powder, 3 to 6 parts of cellulose ether, 3 to 6 parts of starch ether, 5 to 10 parts of nano titanium dioxide, and 5 to 10 parts of molecular sieve. The putty powder has good application property, high strength and good water resistance, and has an absorption and degradation effect for formaldehyde. A porous structure of a molecular sieve contained in the putty powder can absorb the formaldehyde in the air, and can rapidly reduce the content of the formaldehyde in the air, and the contact catalytic effect of the bio-enzyme and the photocatalytic effect of nano titanium dioxide can thoroughly decompose harmful substances such as formaldehyde and TVOC; and by virtue of the absorptionand degradation double effects, the formaldehyde in the air can be rapidly reduced, the formaldehyde pollution can be thoroughly solved, and the purification formaldehyde inner wall water-resisting putty is particularly suitable for the indoor decoration.

Description

technical field [0001] The invention relates to the technical field of water-resistant putty production, in particular to a formaldehyde-purifying water-resistant putty for inner walls. Background technique [0002] The decoration of houses is generally closed construction, the formaldehyde to be released in the furniture is enclosed indoors, and the release time of formaldehyde is relatively long. Despite continuous ventilation, the indoor formaldehyde content cannot be effectively and quickly reduced, and the coating on the furniture is broken. It will continue to release formaldehyde and cause harm to human health. Therefore, there is a need for a method that can quickly adsorb formaldehyde and degrade the adsorbed formaldehyde to achieve the function of removing formaldehyde from the source. [0003] Putty is a part of architectural decoration, leveling the wall surface, and has a large air contact area in house decoration. Add some functional materials to the putty to...

AI Technical Summary

Problems solved by technology

Thus, photogenerated holes [Hole+] are formed in the valence band of the material, and photogenerated electrons [e~] are formed in the conduction band. In the bulk titanium dioxide, because the titanium dioxide particles are very large, the photogenerated electrons are very slow in the process of reaching the conduction band and starting to move to the particle surface. It is easy to recombine with photogenerated holes, so we cannot observe the effect of photon excitation macroscopically

However, due to the small size of nano-titanium dioxide particles, electrons are easier to diffuse to the crystal surface, resulting in two micro-regions with opposite polarities in two different parts of the originally uncharged crystal surface-photogenerated electrons and photogenerated holes.

Images