Shell powder indoor air purification wall material and preparation method thereof

Abstract

The invention discloses a shell powder indoor air purification wall material and a preparation method thereof and belongs to the technical field of polymer composite materials. The shell powder indoor air purification wall material is composed of 30% to 60% by mass of a shell powder mixture, 5% to 20% by mass of chitosan, 10% to 40% by mass of ash-calcium, 5% to 20% by mass of microporous calcium metasilicate, 5% to 15% by mass of calcium ferrite, 5% to 20% by mass of washed kaolin and 10% to 25% by mass of a copolymer binder. The material can highly efficiently adsorb and decompose harmful substances and odor and has functions of bacteriostasis, sterilization and electric resistance. The used chitosan can be used for decomposing to remove harmful substances such as formaldehyde in air, has a removal rate of 99% and effectively reduces the formaldehyde content to 0.05%. The amine group (-NH2) having high reaction activity in the chitosan can react with many gaseous harmful substances to be decomposed into water and oxime.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, in particular to an indoor air purification wall material mainly composed of shell powder and chitosan and a preparation method thereof. Background technique [0002] Latex paint, paint, composite board, leather, foam filler and other materials widely used in interior decoration and furniture contain a large amount of volatile toxic compounds, especially benzene, xylene, and formaldehyde, which seriously pollute indoor air and endanger the health of people, especially children. healthy. The interior decoration wall materials currently on the market are mainly latex paint, diatom mud, and wallpaper. None of these materials can purify indoor air, and they themselves contain harmful substances. At home and abroad, more and more attention is paid to the research of green environmental protection decorative wall materials with the ability to purify the air, but so far there is no...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the disadvantages of high cost of interior decoration wall materials, high energy consumption, pollution itself and indoor air purification materials based on shell powder that cannot efficiently decompose harmful gases such as formaldehyde in the prior art, the present invention provides a An indoor air-purifying decorative wall material with the functions of purifying indoor air and efficiently decomposing formaldehyde, which mainly consists of shell powder, chitosan, calcium ferrite and inorganic functional materials, and its preparation method. The material has high-efficiency adsorption, decomposition Harmful gas and odor, antibacterial, sterilizing, antistatic functions