Check patentability & draft patents in minutes with Patsnap Eureka AI!

Composite material for adsorbing formaldehyde, and preparation method thereof

A technology for adsorbing formaldehyde and composite materials, applied in the field of composite materials for adsorbing formaldehyde and its preparation, can solve the problem of low formaldehyde removal rate and achieve the effect of enriching the porous structure

Active Publication Date: 2019-12-06
JIAOZUO UNIV +1
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for preparing a composite material for adsorbing formaldehyde to solve the problem of low formaldehyde removal rate in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite material for adsorbing formaldehyde, and preparation method thereof
  • Composite material for adsorbing formaldehyde, and preparation method thereof
  • Composite material for adsorbing formaldehyde, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation method of the composite material for removing formaldehyde of the present embodiment comprises the following steps:

[0041] 1) Add 0.5g of polyvinyl alcohol into 75mL of water, slowly raise the temperature to 65°C and stir continuously to dissolve it completely, and obtain an aqueous solution of polyvinyl alcohol, which is then added to the flask for later use;

[0042] Mix 1.8g of N,N'-methylenebisacrylamide, 4.5g of methyl methacrylate, and 10g of liquid paraffin, stir for 10min, add 0.1g of initiator azobisisobutyronitrile to the mixture and mix , to get a mixture;

[0043] 2) Slowly add the above mixed solution to the aqueous solution of polyvinyl alcohol in the flask under stirring condition. After the addition, put the flask in a water bath at 60°C, and continue to stir and react at a speed of 250rpm for 12h; after the reaction, the solid-liquid Separation: Mix the solid with 100 mL of absolute ethanol and stir for 15 minutes, separate the solid ...

Embodiment 2

[0048] The preparation method of the composite material for removing formaldehyde of the present embodiment comprises the following steps:

[0049] 1) Add 0.8g of polyvinyl alcohol into 80mL of water, slowly raise the temperature to 70°C and stir continuously to dissolve it completely, and obtain an aqueous solution of polyvinyl alcohol, which is then added to the flask for later use;

[0050] Mix 2g of N,N'-methylenebisacrylamide, 6g of methyl methacrylate, and 15g of liquid paraffin, stir for 15min, add 0.2g of initiator azobisisobutyronitrile into the mixture and mix to obtain mixed solution;

[0051] 2) Slowly add the above mixed solution into the polyvinyl alcohol aqueous solution in the flask under stirring condition. After the addition, put the flask in a water bath at 60°C, and continue to stir and react at a speed of 200rpm for 10h; after the reaction, the solid-liquid Separation: Mix the solid with 100 mL of absolute ethanol and stir for 20 minutes, separate the sol...

Embodiment 3

[0056] The preparation method of the composite material for removing formaldehyde of the present embodiment comprises the following steps:

[0057] 1) Add 1.5g of polyvinyl alcohol into 100mL of water, slowly raise the temperature to 75°C and stir continuously to dissolve it completely, and obtain an aqueous solution of polyvinyl alcohol, which is then added to the flask for later use;

[0058] Mix 2.5g of N,N'-methylenebisacrylamide, 10g of methyl methacrylate, and 18g of liquid paraffin, stir for 20min, add 0.5g of initiator azobisisobutyronitrile to the mixture, get the mixture;

[0059] 2) Slowly add the above mixed solution to the aqueous solution of polyvinyl alcohol in the flask under stirring conditions. After the addition, put the flask in a water bath at 60°C, and continue to stir and react at a speed of 200rpm for 15h; after the reaction, the solid-liquid Separation: Mix the solid with 150 mL of absolute ethanol and stir for 20 minutes, separate the solid from the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Concentrationaaaaaaaaaa
Concentrationaaaaaaaaaa
Login to View More

Abstract

The invention relates to a composite material for adsorbing formaldehyde, and a preparation method thereof, and belongs to the technical field of formaldehyde removal. The preparation method comprises: 1) mixing N,N'-methylene bisacrylamide, acrylate, an initiator and a pore-forming agent to obtain a mixed solution, adding the mixed solution into a polyvinyl alcohol aqueous solution, carrying outa polymerization reaction, and washing with a solvent to remove the pore-forming agent to obtain a polymerized resin; 2) mixing the polymerized resin and ammonia water, adding an ethanol solution of tetrabutyl titanate, carrying out solid-liquid separation after a reaction, and washing the solid; and 3) adding the washed solid into an HNO3 solution, carrying out constant-temperature reflux for 2-3h, carrying out solid-liquid separation, washing, and drying to obtain the product. According to the present invention, the composite material prepared by the preparation method has a porous structure and can adsorb formaldehyde, wherein titanium dioxide is attached to the particles of the composite material so as to decompose formaldehyde under an illumination condition.

Description

technical field [0001] The invention relates to a composite material for absorbing formaldehyde and a preparation method thereof, belonging to the technical field of formaldehyde removal. Background technique [0002] Formaldehyde is a common pollutant in the indoor atmosphere, and it has high toxicity. Short-term exposure to low concentrations of formaldehyde can irritate the eyes and respiratory tract and cause allergic reactions, and long-term exposure to trace amounts of formaldehyde can increase the possibility of cancer. Formaldehyde has been identified as a teratogenic and carcinogenic substance by the World Health Organization. The "Indoor Air Quality Standard" (GB / T18883-2002), which was implemented in my country in 2003, stipulates that the maximum allowable concentration of formaldehyde in indoor air is 0.10 mg per cubic meter (1 hour average). [0003] Existing methods for eliminating formaldehyde include adsorption, chemical absorption, catalytic conversion, c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J20/26B01J20/30B01D53/86B01D53/72B01D53/02
CPCB01J20/261B01D53/8668B01D53/02B01D2255/20707Y02A50/20
Inventor 胡鹏张本尚苏喜振汤思敏贺龙强
Owner JIAOZUO UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com