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Formaldehyde absorbing material and preparation method thereof

A formaldehyde absorption and absorption material technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of reducing formaldehyde concentration and low absorption efficiency, and achieve the effect of strong formaldehyde removal ability and environmental protection of materials

Inactive Publication Date: 2015-03-25
DONGCHEN LEADER TESTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Activated carbon is often used as a formaldehyde absorption material, mainly through physical adsorption to reduce the concentration of formaldehyde in the air, and the absorption efficiency is low

Method used

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  • Formaldehyde absorbing material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A formaldehyde absorbing material, comprising the following raw materials in parts by weight: 1 part of glycerin, 0.2 parts of defoamer, 8 parts of ferric ammonium sulfate, 3 parts of silicon dioxide, 15 parts of 200-mesh ceramic powder, and 35 parts of deionized water , 1-4 parts of phenyl o-hydroxybenzoate.

[0027] The preparation method of the above-mentioned absorbent material capable of absorbing formaldehyde comprises the following steps:

[0028] Step 1, weighing raw materials according to parts by weight, mixing ferric ammonium sulfate, silicon dioxide, ceramic powder, deionized water and ultraviolet absorber, and stirring at 10000rpm for 2 minutes to obtain mixture I;

[0029] Step 2, add humectant to mixture I, stir at 200 rpm and heat to 40°C, keep warm for 1 minute, then add defoamer, continue stirring to obtain mixture II;

[0030] In step 3, the mixture II is put into a twin-screw extruder, and the screw speed is 50 rpm to extrude the particle adsorption...

Embodiment 2

[0033] A formaldehyde absorbing material, comprising the following raw materials in parts by weight: 1 part of sodium lactate, 0.2 parts of defoamer, 10 parts of ferric ammonium sulfate, 5 parts of silicon dioxide, 18 parts of 300-mesh ceramic powder, 40 parts of deionized water , 2-3 parts of phenyl o-hydroxybenzoate.

[0034] The preparation method of the above-mentioned absorbent material capable of absorbing formaldehyde comprises the following steps:

[0035] Step 1, weighing raw materials according to parts by weight, mixing ferric ammonium sulfate, silicon dioxide, ceramic powder, deionized water and ultraviolet absorber, and stirring at 11000rpm for 3 minutes to obtain mixture I;

[0036] Step 2, add humectant to mixture I, stir at 250 rpm and heat to 43°C, keep warm for 2 minutes, then add defoamer, continue stirring to obtain mixture II;

[0037] In step 3, the mixture II is put into a twin-screw extruder, and the screw speed is 53 rpm to extrude the particle adsorp...

Embodiment 3

[0040] A formaldehyde absorbing material, comprising the following raw materials in parts by weight: 1-4 parts of sodium lactate, 0.2-0.8 parts of defoamer, 10-12 parts of ferric ammonium sulfate, 5-7 parts of silicon dioxide, and 400-mesh ceramic powder 18-22 parts, 40-42 parts of deionized water, 2-3 parts of phenyl o-hydroxybenzoate.

[0041] The preparation method of the above-mentioned absorbent material capable of absorbing formaldehyde comprises the following steps:

[0042] Step 1, weighing raw materials according to parts by weight, mixing ferric ammonium sulfate, silicon dioxide, ceramic powder, deionized water and ultraviolet absorber, and stirring at 11800 rpm for 5 minutes to obtain mixture I;

[0043] Step 2, add humectant to mixture I, stir at 300 rpm and heat to 48°C, keep warm for 3 minutes, then add defoamer, continue stirring to obtain mixture II;

[0044] In step 3, the mixture II is put into a twin-screw extruder, and the screw speed is 58 rpm to extrude ...

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Abstract

The invention discloses a formaldehyde absorbing material and a preparation method thereof. The formaldehyde absorbing material is prepared from the following raw materials in parts by weight: 1-4 parts of a humectant, 0.2-0.8 part of a defoaming agent, 8-14 parts of ammonium iron sulfate, 3-9 parts of silicon dioxide, 15-25 parts of ceramic powder, 35-45 parts of deionized water and 1-4 parts of an ultraviolet light absorber. The preparation method comprises the following steps: 1. weighing the raw materials in the parts by weight, mixing ammonium iron sulfate, silicon dioxide, the ceramic powder, the deionized water and the ultraviolet light absorber, and stirring for 2-6 minutes at the speed of 10000-12000 revolutions per minute (rpm) to obtain a mixture I; 2. feeding the humectant into the mixture I, stirring and heating up to 40-50 DEG C, carrying out heat preservation for 1-3 minutes, feeding the defoaming agent, and continuously stirring to obtain a mixture II; 3, putting the mixture II into a double-screw extruder to extrude the particle absorbing material. The formaldehyde absorbing material is high in absorption capability and low in cost, and can be recycled.

Description

[0001] technical field [0002] The invention relates to the technical field of chemical industry, in particular to a formaldehyde absorbing material and a preparation method thereof. [0003] Background technique [0004] With the continuous improvement of people's living standards, people's requirements for living environment are getting higher and higher. Since indoor air pollution caused by wooden furniture and other materials is still very common, especially indoor formaldehyde pollution, it is the number one killer of human health, so simply opening windows for ventilation cannot solve the problem of formaldehyde pollution. [0005] Formaldehyde has a strong stimulating effect on the skin, eyes and respiratory tract, and has an anesthetic effect on the central nervous system. Formaldehyde coagulates proteins, is genotoxic to humans, and is also a mutagen. Activated carbon is often used as a formaldehyde absorption material, mainly through physical adsorption to redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02B01J20/22B01J20/30
Inventor 张海防熊开胜谢建庭
Owner DONGCHEN LEADER TESTING
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