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Shell powder functional coating as well as preparation method and application thereof

A technology of functional coatings and shell powder, applied in fireproof coatings, coatings, etc., can solve the problems of low formaldehyde degradation efficiency and inability to catalyze degradation, achieve excellent visible light catalytic degradation performance, improve photocatalytic degradation efficiency, and efficiently remove formaldehyde Effect

Pending Publication Date: 2022-03-29
安徽中科思沃生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the degradation efficiency of the above-mentioned shell powder-based composite material to formaldehyde is low, and it cannot be catalyzed and degraded under sunlight.

Method used

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  • Shell powder functional coating as well as preparation method and application thereof
  • Shell powder functional coating as well as preparation method and application thereof
  • Shell powder functional coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] S1: adding shell powder to acetic acid solution with a mass concentration of 10% and stirring for 10 minutes, filtering and calcining at 500°C for 6 hours to obtain digested shell powder; the mass ratio of shell powder to acetic acid solution is 1:5;

[0032] S2: Dissolve 10 parts of 4-amino-5-imidazole carboxamide and 5 parts of tetraethylenepentamine in 200 parts of water in parts by mass, then add 100 parts of digested shell powder, stir and disperse, pressurize under 0.4MPa pressure After soaking and absorbing for 0.5h, add 6 parts of gelatin, stir and react in a water bath at 60°C for 1h, then let it settle for 12h, discard the supernatant and dry it in vacuum at 80°C to obtain ammoniated shell powder;

[0033]S3: Dissolve nickel nitrate in deionized water, add sodium thiosulfate and nano-titanium oxide, stir evenly, hydrothermally crystallize at 100°C for 6 hours, centrifuge, wash, and dry to obtain nano-nickel sulfide / titanium oxide Composite; the mass ratio of n...

Embodiment 2

[0037] S1: add the shell powder to the acetic acid solution with a mass concentration of 12.5% ​​and stir for 20 minutes, filter and calcinate at 650°C for 6 hours to obtain the digested shell powder; the mass ratio of the shell powder to the acetic acid solution is 1:5;

[0038] S2: Dissolve 15 parts of 4-amino-5-imidazole formamide and 6.5 parts of tetraethylenepentamine in 200 parts of water in parts by mass, then add 100 parts of digested shell powder, stir and disperse, pressurize under 0.6MPa pressure After impregnation and adsorption for 1 hour, add 8 parts of gelatin, stir and react in a water bath at 70°C for 1.5 hours, then let it settle for 12 hours, discard the supernatant and dry it in vacuum at 80°C to obtain ammoniated shell powder;

[0039] S3: Dissolve nickel nitrate in deionized water, then add sodium thiosulfate and nano-titanium oxide, stir evenly, hydrothermally crystallize at 125°C for 10 hours, centrifuge, wash, and dry to obtain nano-nickel sulfide / titan...

Embodiment 3

[0043] S1: add the shell powder to the acetic acid solution with a mass concentration of 15% and stir for 30 minutes, filter and calcinate at 800°C for 6 hours to obtain the digested shell powder; the mass ratio of the shell powder to the acetic acid solution is 1:5;

[0044] S2: Dissolve 20 parts of 4-amino-5-imidazole carboxamide and 8 parts of tetraethylenepentamine in 200 parts of water in parts by mass, then add 100 parts of digested shell powder, stir and disperse, pressurize under 0.8MPa pressure After impregnation and adsorption for 1 hour, add 10 parts of gelatin, stir and react in a water bath at 80°C for 2 hours, then let it settle for 12 hours, discard the supernatant and dry it in vacuum at 80°C to obtain ammoniated shell powder;

[0045] S3: Dissolve nickel nitrate in deionized water, then add sodium thiosulfate and nano-titanium oxide, stir evenly, hydrothermally crystallize at 150°C for 12 hours, centrifuge, wash, and dry to obtain nano-nickel sulfide / titanium o...

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Abstract

The invention discloses a shell powder functional coating as well as a preparation method and application thereof. The shell powder functional coating comprises the following raw materials in parts by mass: 100 parts of ammoniated shell powder, 10-15 parts of talcum powder, 20-30 parts of sepiolite powder, 0.5-2 parts of a photocatalyst, 10-30 parts of redispersible latex powder, 1-5 parts of a thickening agent and 0.5-5 parts of a defoaming agent. The preparation method of the ammoniated shell powder comprises the following steps: S1, adding shell powder into an acetic acid solution, stirring for 10-30 minutes, filtering, and calcining at 500-800 DEG C for 6 hours to obtain digested shell powder; s2, dissolving 4-amino-5-imidazole formamide and tetraethylenepentamine in water, then adding the digested shell powder, stirring and dispersing, under the pressure of 0.4-0.8 MPa, carrying out pressurized impregnation adsorption for 0.5-1 hour, then adding gelatin, carrying out water bath stirring reaction for 1-2 hours at the temperature of 60-80 DEG C, standing and precipitating, and carrying out vacuum drying at the temperature of 80 DEG C to obtain ammoniated shell powder. The shell powder functional coating has the effects of resisting high temperature, preserving heat and efficiently removing formaldehyde, amino in ammoniated shell powder load and formaldehyde are subjected to a Mannich reaction, the photocatalyst has good visible light catalysis performance on formaldehyde, and formaldehyde is removed through cooperation of the ammoniated shell powder load and the photocatalyst.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to shell powder functional coatings, a preparation method and application thereof. Background technique [0002] Traditional latex paint and polymer wall protection materials are products of the modern petrochemical industry. Their production process consumes a large amount of non-renewable petroleum resources, and at the same time pollutes and destroys the earth's environment, directly leading to the greenhouse effect and climate warming. The interior wall paints widely used in my country are mainly acrylic latex paints and lime paints using polyvinyl alcohol as binders, both of which have the disadvantages of polluting the environment and having a single function. In the process of interior decoration, paint, plywood, leather, foam filler, plastic veneer and other decoration materials used in large quantities contain hundreds of volatile toxic compounds. These toxic a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04C09D123/08C09D7/62C09D7/61
CPCC09D131/04C09D123/0892C09D5/18C09D7/62C09D7/61C08K2003/3009C08K2003/2237C08L2201/08C08K9/12C08K5/17C08K9/04C08K3/26C08K5/3445C08K9/10C08K3/30C08K3/22
Inventor 胡先海葛业君邢兵
Owner 安徽中科思沃生物科技有限公司
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