Functional material for purifying air and regulating humidity and its preparation method

A technology of air purification and functional materials, applied in disinfection, deodorization, etc., can solve the problems of small humidity control and slow response speed, and achieve the effect of strong humidity control ability and high humidity capacity

Active Publication Date: 2014-03-19
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, solve the defects of small humidity adjustment and slow response speed of traditional humidity control products, and achieve the purpose of adjusting air humidity and purifying the environment at the same time. The polymer composite material is effectively combined with the activated carbon material, so that the material has the dual functions of purifying air and regulating humidity

Method used

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  • Functional material for purifying air and regulating humidity and its preparation method

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Effect test

Embodiment 1

[0022] (1) The purchased diatomite raw material is roasted at 600° C. for 60 minutes; after that, it is put into 70% H by mass percentage in the ratio of solid-liquid mass ratio 1:3. 2 SO 4 Soak in aqueous solution for 3 hours at 100°C. Next, the above-mentioned diatomite was added to a 4% aqueous solution of cetyltrimethylammonium bromide (CTAB) in a ratio of 1:4 by solid-to-liquid ratio, and stirred at 60° C. for 2 h; cooled , washing, vacuum drying at 80°C for 60 minutes, grinding and crushing to obtain organically modified diatomite.

[0023] (2) the preparation mass fraction is the NaOH aqueous solution of 25%, under the condition of ice-water bath, the metered NaOH solution is slowly dropped into the acrylic acid to obtain the acrylic acid-sodium acrylate monomer solution with a neutralization degree of 70%; then the acrylic acid-sodium acrylate Organically modified diatomite with 60% mass of the monomer solution was added into the monomer solution for stirring and mix...

Embodiment 2

[0027] (1) Roasting the purchased diatomite raw material at 700°C for 30min; then put it into a 60% H 2 SO 4 Soak in aqueous solution for 4 hours at 80°C. Next, the above-mentioned diatomite was added to a 10% by mass percent cetyltrimethylammonium bromide (CTAB) aqueous solution at a solid-to-liquid ratio of 1:5, and stirred at 40° C. for 3 h; cooled , washing, vacuum drying at 100°C for 90 minutes, grinding and crushing to obtain organically modified diatomite.

[0028] (2) The KOH aqueous solution with a mass fraction of 25% is prepared, and the metered NaOH solution is slowly dripped into acrylic acid under ice-water bath conditions to obtain an acrylic acid-sodium acrylate monomer solution with a neutralization degree of 50%; then the acrylic acid-sodium acrylate Organically modified diatomite with 70% mass of the monomer solution was added to the monomer solution for stirring and mixing, and ultrasonic vibration was performed for 40 minutes to disperse the solution to ...

Embodiment 3

[0032] (1) Roasting the purchased diatomite raw material at 550°C for 120min; then put it into a mass percentage of 90% H 2 SO 4 Soak in aqueous solution for 2 hours at 100°C. Next, the above-mentioned diatomite was added to a 1% by mass percent cetyltrimethylammonium bromide (CTAB) aqueous solution at a solid-to-liquid ratio of 1:2, and stirred at 80° C. for 4 h; cooled , washing, vacuum drying at 100°C for 80 minutes, grinding and crushing to obtain organically modified diatomite.

[0033] (2) The KOH aqueous solution with a mass fraction of 25% is prepared, and the metered NaOH solution is slowly dripped into acrylic acid under ice-water bath conditions to obtain an 80% neutralization degree of acrylic acid-sodium acrylate monomer solution; then the acrylic acid-sodium acrylate 10% organically modified diatomite by mass of the monomer solution was added into the monomer solution for stirring and mixing, and ultrasonic vibration was performed for 40 minutes to disperse the...

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Abstract

The invention discloses functional material for purifying air and regulating humidity and its preparation method. The method comprises preparing diatomite-polyacrylic acid (sodium polyacrylate) composite material with high humidification performance, then compounding with activated carbon, thereby obtaining an environmentally-friendly material product with both purification and humidity regulation functions. Nontoxic and harmless diatomite with low cost, large porosity and good adsorptivity and chemical stability is used as raw material, and polymerizes with acrylic acid (sodium acrylate) by inverse suspension polymerization to prepare a nanometer humidity-regulation composite material component; and the component mechanically combines with activated carbon, and is subjected to pressure molding or granulation, and drying to obtain the novel environment friendly product. The invention effectively compounds inorganic mineral-organic polymer composite material with humidity regulation function and activated carbon material, to achieve the double functions of air purification and humidity regulation.

Description

technical field [0001] The invention relates to a functional material and a preparation method thereof, more specifically, to a functional material mainly used for air purification and humidity adjustment of indoor building spaces and a preparation method thereof. Background technique [0002] With the rapid development of the economy, the contradiction between the continuous decline of environmental quality and the continuous improvement of people's requirements for environmental quality is becoming more and more serious. People require the environment to be clean and also hope to adjust its humidity to make life more comfortable. [0003] Activated carbon is a kind of porous carbon formed by the random arrangement of microcrystalline carbon in structure, which forms pores between interconnections. After activation, defects are formed. It has a good adsorption function and can adsorb a variety of gases. Formaldehyde, SO 2 , NO 2 etc. It also has a certain removal effect o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/02C08F220/06C08F2/44C08F2/32C08K9/04C08K3/34C08K3/04A61L9/014A61L101/04
Inventor 任曙凭王吉会董飞
Owner TIANJIN UNIV
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