Formaldehyde-removing polymer composite material and preparation method thereof

A composite material and polymer technology, which is applied in the field of formaldehyde-removing polymer composite materials and its preparation, can solve problems such as unsatisfactory formaldehyde-removing effect, and achieve the effect of simple preparation method and fresh air.

Pending Publication Date: 2020-05-19
陕西军来创环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used air purification technology is mainly physical adsorption, such as plant adsorption and activated carbon adsorption, but the effect of removing formaldehyde is not ideal

Method used

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  • Formaldehyde-removing polymer composite material and preparation method thereof

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preparation example Construction

[0035] It should be noted that the modified activated carbon preparation method comprises the following steps;

[0036] 1) Add activated carbon to 0.1mol / L hydrochloric acid and soak for 24 hours, then backwash with water until the pH of the filtered water is 6-7, then separate the activated carbon, dry at 30-40°C for 2-3 hours, and set aside;

[0037] 2) Mix the activated carbon obtained in step 1) with the composite bacteria, culture at 35-40°C for 24-36h, and dry at 35-40°C to obtain modified activated carbon;

[0038] The mass ratio of activated carbon to composite bacteria is 1: (0.1-0.15).

[0039] Among them, the composite bacteria include formaldehyde-degrading bacteria and bacillus with a mass ratio of 1:1.

[0040] Composite bacteria are attached to the modified activated carbon prepared above, the activated carbon absorbs formaldehyde in the air, and the composite bacteria decompose the adsorbed formaldehyde, thereby enabling the modified activated carbon to mainta...

Embodiment 1

[0055] The modified activated carbon is microbial modified activated carbon, and the preparation method comprises the following steps;

[0056] 1) Add activated carbon to 0.1mol / L hydrochloric acid and soak for 24 hours, then backwash with water until the pH of the filtered water is 7, then separate the activated carbon, dry at 40°C for 3 hours, and set aside;

[0057] 2) Mix the activated carbon obtained in step 1) with the composite bacteria, culture at 35°C for 36 hours, and dry at 40°C to obtain modified activated carbon; the composite bacteria include formaldehyde-degrading bacteria with a mass ratio of 1:1 and Bacillus;

[0058] The mass ratio of activated carbon to composite bacteria is 1:0.15.

Embodiment 2

[0060] The modified activated carbon is microbial modified activated carbon, and the preparation method comprises the following steps;

[0061] 1) Add activated carbon to 0.1mol / L hydrochloric acid and soak for 24 hours, then backwash with water until the pH of the filtered water is 6, then separate the activated carbon, dry at 30°C for 2-3 hours, and set aside;

[0062] 2) Mix the activated carbon obtained in step 1) with the composite bacteria, culture at 40°C for 24 hours, and dry at 35°C to obtain modified activated carbon; the composite bacteria include formaldehyde-degrading bacteria with a mass ratio of 1:1 and Bacillus;

[0063] The mass ratio of activated carbon to composite bacteria is 1:0.1.

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Abstract

The invention belongs to the field of formaldehyde purification. The invention relates to a composite material, and particularly discloses a formaldehyde-removing polymer composite material and a preparation method thereof. The formaldehyde-removing polymer composite material is prepared from polyethylene glycol terephthalate, polylactic acid, Arabic gum, chitosan quaternary ammonium salt, 2-imidazolidinone, adipic dihydrazide, attapulgite, porous filler, tourmaline, modified activated carbon, syrup, a defoaming agent, an emulsifying agent, white carbon black and water. The composite materialhas the functions of purifying formaldehyde, protecting the environment and removing odor, so that the harmful substances in the air can be effectively purified. The modified activated carbon has theeffects of absorbing and decomposing formaldehyde. The preparation method is simple, and the prepared formaldehyde-removing polymer composite material can efficiently remove harmful substances such asformaldehyde, ammonia and benzene in indoor air, and can release negative oxygen ions, so that the air is fresh, environment-friendly and safe.

Description

technical field [0001] The invention belongs to the field of formaldehyde purification, in particular to a formaldehyde-removing polymer composite material and a preparation method thereof. Background technique [0002] Formaldehyde is a common air pollutant. Long-term exposure to low-dose formaldehyde can cause chronic respiratory diseases, nasopharyngeal cancer, colon cancer, brain tumors, menstrual disorders, genetic mutations in the nucleus, cross-linking of DNA single strands, and DNA and protein Cross-linking and inhibiting the repair of DNA damage, pregnancy syndrome, causing chromosomal abnormalities in newborns, leukemia, and causing memory and mental decline in adolescents. Among all contacts, children and pregnant women are particularly sensitive to formaldehyde and are more harmful. [0003] At present, the commonly used air purification technology is mainly physical adsorption, such as plant adsorption and activated carbon adsorption, but the effect of removing...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L67/04C08L5/08C08L5/00C08K13/06C08K9/04C08K9/02C08K7/24C08K7/26C08K3/38C08K5/24C08K5/3445
CPCC08K2003/387C08K2201/003C08K2201/014C08L67/02C08L2205/02C08L2205/035C08L67/04C08L5/08C08L5/00C08K13/06C08K9/04C08K9/02C08K7/24C08K7/26C08K3/38C08K5/24C08K5/3445
Inventor 左孟孟
Owner 陕西军来创环保科技有限公司
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