A kind of formaldehyde-removing interior wall putty powder

Abstract

The invention mainly relates to the technical field of building coating and discloses formaldehyde-removing inner-wall putty powder. The formaldehyde-removing inner-wall putty powder is prepared by talcum powder, used sand, pelelith powder, medical stone powder, white carbon black, titanium dioxide, modified silkworm excrement, microcrystalline cellulose, modified chitosan and Arabic gum. The formaldehyde-removing inner-wall putty powder has the advantages that the putty powder is easy in raw material obtaining, wide in raw material source, simple to prepare, capable of saving cost, capable of sufficiently absorbing formaldehyde and then being catalytically decomposed by Pt<4+> under normal temperature, environmentally friendly, healthy, capable of increasing the varieties of the putty powder on the market and capable of increasing economic income by 11.4%; a large amount of the used sand used in casting is added into the raw materials, waste is turned into treasure, environments are protected, cheapness is achieved, the used sand is regenerated through freezing and vacuum grinding to increase the cleanliness and porosity of the used sand, influence on the whiteness of the putty powder is avoided, and the formaldehyde absorbing ability is increased; the regenerated used sand, the pelelith powder and the medical stone powder are mixed and calcined under high temperature, the porosity is increased, the formaldehyde absorbing is accelerated, drying after putty plastering can be accelerated, and the construction period can be shortened by 30%.

Description

technical field [0001] The invention mainly relates to the technical field of architectural coatings, in particular to a formaldehyde-removing interior wall putty powder. Background technique [0002] Putty powder is an indispensable raw material in the process of wall decoration. The interior wall directly contacts people's lives. Therefore, with the gradual improvement of people's living standards, the requirements for interior wall putty powder are getting higher and higher. In order to meet people's needs, Formaldehyde-removing putty powder for interior walls came into being, but there are very few formaldehyde-removing putty powders on the market at present, and the price is high, and the current formaldehyde-removing putty powder can only absorb formaldehyde in a short period of time, decompose and remove it The ability is very weak, and the ability to remove formaldehyde after adsorption saturation is extremely weak, and even emits formaldehyde, causing secondary poll...

AI Technical Summary

Problems solved by technology

[0002] Putty powder is an indispensable raw material in the process of wall decoration. The interior wall directly contacts people's lives. Therefore, with the gradual improvement of people's living standards, the requirements for interior wall putty powder are getting higher and higher. In order to meet people's needs, Formaldehyde-removing putty powder for interior walls came into being, but there are very few formaldehyde-removing putty powders on the market at present, and the price is high, and the current formaldehyde-removing putty powder can only absorb formaldehyde in a short period of time, decompose and remove it The ability is very weak, and the ability to remove formaldehyde after adsorption saturation is extremely weak, and even emits formaldehyde, causing secondary pollution; patent document CN 103525152 A discloses a formaldehyde-resistant putty powder and its preparation method. Adding the anti-formaldehyde agent 2-imidazolidinone or other products of the same type can react with formaldehyde, but 2-imidazolidinone itself is a toxic and carcinogenic organic substance, which will also occur during the preparation and use of putty powder cause harm to the human body