The invention relates to the technical field of environmental protection solid coatings, and in particular, relates to a preparation method of a shell powder solid coating with formaldehyde adsorptionfunction. The shell powder solid coating with the formaldehyde adsorption is prepared from shell powder, titanium dioxide, talc powder, lithopone, gelatin, sodium carboxymethyl cellulose and starch.The prepared solid coating has the formaldehyde adsorption function and can effectively remove harmful gases such as formaldehyde.
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