Adsorption absorption reaction type formaldehyde eliminating agent

Abstract

An adsorption-absorption reaction type formaldehyde removing agent is composed of adsorption-absorption agent (activated carbon, alumina, diatomite, polyamide or water) for adsorbing and absorbing the formaldehyde from indoor air, and reactant (sodium sulfite and ammonium salt or hydroxy amine hydrochloride) for reacting on adsorbed and absorbed formaldehyde to become non-toxic, no-odor and non-pollution substance.

Description

[0001] Field [0002] The invention relates to a formaldehyde eliminating agent. Background technique [0003] Along with the raising of people's living standard, it is common phenomenon that people decorate living room and work room. However, most of the decoration materials used (such as wood-based panels, paints, paints, etc.) contain volatile formaldehyde, which can be gradually released from the decoration materials for a long time after decoration, causing the indoor free formaldehyde content to seriously exceed the standard, and the indoor air is affected. heavily polluted. The results of medical experiments show that long-term exposure of mice to air with a formaldehyde concentration of 14.1ppm-5.6ppm can induce nasal cancer. The European Community and the US Environmental Protection Agency (EPA) have also listed formaldehyde as a possible carcinogen. Although the exact relationship between certain carcinogenesis and formaldehyde has not yet been found out, the gover...

AI Technical Summary

Problems solved by technology

Practice has proved that some of these methods will reduce the water resistance of wood-based panels, and some modifiers are more expensive, which will inevitably increase the cost of the product. Too much addition will affect the curing of the resin and reduce the bonding strength of the wood-based panels.