A formaldehyde-removing decorative board and its preparation method

Abstract

The invention provides a formaldehyde-removing decorative board and a preparation method thereof, which relate to the field of formaldehyde treatment. Include the following components in parts by weight: an adsorption layer is also included in the middle of the base material and the decoration layer, and a functional coating layer is also included on the surface of the decoration layer; the adsorption layer includes the following components: diatomaceous earth, activated carbon, biochar and volcanic stone particles; the functional coating layer includes the following components: activated carbon loaded nano TiO 2 Materials, chitosan, rosin resin, nano-graphene, lignin, plant extracts, light calcium, biological enzymes, silicon acrylic emulsion, film-forming aids, defoamers, dispersants and water; physical adsorption, chemical catalysis , The combination of biological enzymes and plant extracts removes formaldehyde and improves the removal effect. The base material and the adsorption layer, and the adsorption layer and the decoration layer are respectively bonded with soybean protein adhesive. The formaldehyde-removing decorative board adopts the combination of an adsorption layer and a functional coating layer to remove formaldehyde, improves the removal effect, and is safe and non-toxic.

Description

technical field [0001] The invention relates to the technical field of formaldehyde treatment, in particular to a formaldehyde-removing decorative board and a preparation method thereof. Background technique [0002] Formaldehyde is the material of higher toxicity, has been determined as carcinogenic and teratogenic shape material by the World Health Organization, is the allergen of generally acknowledging, also is one of potential strong mutagen. Studies have shown that: formaldehyde has strong carcinogenic and short cancer effects. The lot of documents record, formaldehyde mainly shows aspects such as allotriosmia, stimulation, allergy, abnormal pulmonary function, dysfunction of liver and immunologic dysfunction to health effects. Long-term exposure to low-dose formaldehyde can cause chronic respiratory diseases, nasopharyngeal cancer, colon cancer, brain tumors, menstrual disorders, gene mutations in the nucleus, DNA single-strand cross-linking and DNA-protein cross-lin...

AI Technical Summary

Problems solved by technology

These methods have their own advantages and disadvantages, and the most commonly used method is the adsorption method. At present, the solid adsorbents based on various activated carbons and their products are often a pack or a box of adsorbents. The adsorption surface is small and the adsorption time is long. And the effect is not good, and it is inconvenient to use. The adsorbed substance first contacts the outer surface of the activated carbon, and then enters its macropores, mesopores and micropores. In the pores of activated carbon, and activated carbon only has a relatively strong adsorption effect on non-polar or weakly polar substances, formaldehyde has a low molecular weight and is extremely polar, so it is difficult to physically remove it through activated carbon, and it is difficult to remove it at adsorption saturation and temperature. Higher case is easy to be released by secondary

The application number is CN201810722143.1 (public date 20181130). A new type of formaldehyde-removing decorative material and its preparation method. The decorative board uses alkalized plant fibers, oyster shells and titanium dioxide to absorb and decompose formaldehyde. However, pure titanium dioxide is not suitable for photocatalytic removal of formaldehyde , still did not achieve the desired effect

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