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Photolysis coating capable of efficiently decomposing formaldehyde and preparation method of photolysis coating

A photolysis and formaldehyde technology, applied in powder coatings, antifouling/underwater coatings, coatings, etc., can solve the problems of low efficiency, low photon efficiency, short life and so on

Pending Publication Date: 2021-03-16
山东京博环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the products used in the market to purify formaldehyde are mainly titanium dioxide series and precious metal series, with TiO 2 Take the product as an example, it only responds to ultraviolet light, and ultraviolet light with a wavelength of <380nm only accounts for 3.39% of the energy in the entire spectral wavelength range, and photogenerated electrons-holes are easy to recombine, resulting in low photon quantum efficiency; at the same time, traditional products have a short lifespan , low efficiency and other disadvantages, there are risks such as heavy metal pollution in use

Method used

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  • Photolysis coating capable of efficiently decomposing formaldehyde and preparation method of photolysis coating

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Embodiment 1

[0024] A photolytic paint for efficiently decomposing formaldehyde, comprising the following raw materials in parts by weight: 40 parts of biological calcium carbonate, 10 parts of photolytic agent, 24 parts of calcium carbonate, 0.2 part of scallop powder, 0.3 part of guar gum, 1.5 parts of putty rubber powder 5 parts, 5 parts of ash calcium powder, 10 parts of kaolin, 3.8 parts of cellulose, 1.2 parts of sodium alginate, 2.5 parts of sodium silicate, 2.5 parts of hydrophobic silicon dioxide defoaming powder, 0 parts of inorganic pigment; with conventional preparation methods, The raw materials are added sequentially and mixed mechanically directly to obtain the photolytic coating.

[0025] Among them, biological calcium carbonate (D50=9.55μm, D90=76.3μm) is a powder prepared from marine biological shells, bird / poultry eggshells, deodorizing and deodorizing, high-temperature calcination, grinding and screening; calcium carbonate is heavy calcium carbonate; cellulose is hydrox...

Embodiment 2

[0028] A photolytic coating for efficiently decomposing formaldehyde, comprising the following raw materials in parts by weight: 50 parts of biological calcium carbonate, 5 parts of photolytic agent, 20 parts of calcium carbonate, 0.3 part of scallop powder, 0.5 part of guar gum, and 1.0 part of putty rubber powder 1 part, 4 parts of lime calcium powder, 12 parts of kaolin, 4 parts of cellulose, 1 part of sodium alginate, 2 parts of sodium hexametaphosphate, 2 parts of hydrophobic silica defoaming powder, 1 part of inorganic pigment; , Each raw material is added sequentially and then mechanically mixed directly to obtain a photolytic coating.

[0029] Among them, the photolytic agent is g-C 3 N 4 ;Biological calcium carbonate (D50=20.3μm, D90=216μm) is a powder prepared from marine biological shells, bird / poultry eggshells, deodorizing and deodorizing, high-temperature calcination, grinding and screening; calcium carbonate is heavy carbonic acid Calcium 12 parts, light calci...

Embodiment 3

[0032] A photolytic paint for efficiently decomposing formaldehyde, comprising the following raw materials in parts by weight: 45 parts of biological calcium carbonate, 10 parts of photolytic agent, 20 parts of calcium carbonate, 0.5 part of scallop powder, 0.5 part of guar gum, 1 part of putty rubber powder 5 parts, 5 parts of lime calcium powder, 12 parts of kaolin, 3.8 parts of cellulose, 1.2 parts of sodium alginate, 2 parts of sodium hexametaphosphate, 2 parts of hydrophobic silicon dioxide defoaming powder, 0 parts of inorganic pigment; , Each raw material is added sequentially and then mechanically mixed directly to obtain a photolytic coating.

[0033] Among them, biological calcium carbonate (D50 = 7.75 μm, D90 = 252 μm) is a powder prepared from marine biological shells, deodorized and deodorized, high-temperature calcination, grinding and screening; calcium carbonate is heavy calcium carbonate; cellulose is hydroxyl 1.6 parts of propyl methylcellulose, 2.2 parts of ...

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Abstract

The invention relates to the field of novel environment-friendly materials and coatings, in particular to a photolysis coating capable of efficiently decomposing formaldehyde and a preparation methodof the photolysis coating. An inorganic nonmetal semiconductor material responding to visible light and biological calcium carbonate are combined together, a powdery coating material with good formaldehyde purification performance and formaldehyde purification effect durability is prepared through compounding, and formaldehyde can be reduced to 0.08 mg / m<3> or below within 48 h. The invention hasthe remarkable advantages that the preparation method of the photolysis coating capable of efficiently decomposing formaldehyde is provided, the process is simple, and the cost is low; and the invention provides a material capable of quickly decomposing formaldehyde, and the material is efficient and environment-friendly and has a certain antibacterial effect.

Description

technical field [0001] The invention relates to the field of novel environment-friendly materials and coatings, and specifically provides a photolytic coating for efficiently decomposing formaldehyde and a preparation method thereof. Background technique [0002] Following the "soot type" and "chemical smog type" pollution, modern people have gradually entered the third generation pollution period titled "interior decoration pollution". Formaldehyde is the main pollutant released by interior decoration and furniture decoration. It is the main cause of many diseases, and the release period of formaldehyde is as long as 3-15 years. According to the mandatory requirements of "Hygienic Standards for Formaldehyde in Indoor Air", after closing the doors and windows for 1 hour, the amount of formaldehyde released in each cubic meter of indoor air shall not exceed 0.08 mg, higher than 0.08 mg / m 3 High formaldehyde concentrations can cause red eyes, itchy eyes, throat discomfort or ...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/03C09D5/14C09D7/61C09D7/65
CPCC09D1/00C09D5/033C09D5/14
Inventor 穆广杰李平张学雷崔东波孙晓光张余鑫孙培旺魏国强李佳明陈维英闫敏敏徐继任刘友刚
Owner 山东京博环保材料有限公司