Activated carbon plate material capable of regenerably adsorbing harmful gases and preparation method thereof

Abstract

The invention discloses an activated carbon plate capable of regenerating and adsorbing harmful gases and a preparation method thereof. The method comprises: (1) preparing titanium dioxide-supported activated carbon; (2) adding the wetted titanium dioxide-supported activated carbon into an adhesive , fully mixed to obtain the mixed glue to be coated; (3) use the mixed glue to be coated to double-sided sizing on the base material and then paste the wood veneer, after cold pressing and hot pressing curing, put it for curing to obtain regenerative adsorption Activated carbon sheets for harmful gases. This application loads nano-titanium dioxide on the surface of activated carbon. When the activated carbon absorbs harmful gases, under the action of photocatalysis, titanium dioxide will decompose harmful gases and release the adsorption sites of activated carbon, thereby realizing the regenerative adsorption of activated carbon and greatly extending the service life of activated carbon. , improve the adsorption efficiency of activated carbon. The sufficient wetting of titanium dioxide-supported activated carbon before use can ensure the proper adsorption function of titanium dioxide-supported activated carbon.

Description

technical field [0001] The invention belongs to the technical field of activated carbon sheet manufacturing, and in particular relates to an activated carbon sheet capable of regeneratively adsorbing harmful gases and a preparation method thereof. Background technique [0002] Adhesive is one of the main raw materials needed in the production process of wood-based panels, but more than 90% of the adhesives used in the market are urea-formaldehyde resins made of formaldehyde. Urea-formaldehyde resin will continuously release free formaldehyde in the process of production and use, which will pollute the furniture environment of consumers and cause lasting damage to the human body. In addition, organic volatile gases such as benzene, toluene, and xylene released from the board will also affect human health. [0003] Activated carbon is a porous carbon material that has the functions of adsorbing formaldehyde and organic volatile harmful gases. In the wood-based panel glue dis...

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Problems solved by technology

[0004] The disadvantage of the above wood-based panel glue is that activated carbon itself has a limited amount of adsorption to formaldehyde, organic volatile harmful gases and other substances, and cannot purify the home environment for a long time; and if activated carbon is directly added to the adhesive, The adhesive will occupy and block the surface pores of activated carbon, which not only affects the adsorption efficiency of activated carbon, but also affects the bonding strength of the adhesive to a certain extent.

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