CN102101040A - Polyfunctional formaldehyde adsorption material - Google Patents
Polyfunctional formaldehyde adsorption material Download PDFInfo
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- CN102101040A CN102101040A CN 201110031053 CN201110031053A CN102101040A CN 102101040 A CN102101040 A CN 102101040A CN 201110031053 CN201110031053 CN 201110031053 CN 201110031053 A CN201110031053 A CN 201110031053A CN 102101040 A CN102101040 A CN 102101040A
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Abstract
The invention discloses a polyfunctional formaldehyde adsorption material. A polyfunctional nitrogen-containing compound with molecular weight of less than 200 is used as an active ingredient, and a small molecular alcohol substance is used as a synergist; and after the active ingredient and the synergist are mixed in a mass ratio of 1:1-10, the mixture is supported in a porous support. The small molecular polyfunctional nitrogen-containing compound and the small molecular polyalcohol synergist generate a stable three-dimensional netlike structural product by polyfunctional nucleophilic addition reaction, and the three-dimensional netlike structural product is supported on the porous support, so that the adsorption efficiency of the porous support is greatly enhanced, meanwhile, the formaldehyde molecules are locked in the three-dimensional netlike structure, and the defect of secondary release of the porous support is overcome.
Description
Technical field
The present invention relates to material for air purification, specifically a kind of sorbing material that is particularly useful for eliminating formaldehyde.
Background technology
Along with the raising of people's living standard, the finishing in room is more and more luxurious.The glued board of while non-environmental protection of a large amount of uses in finishing, wood-based plate furniture, Lauxite class adhesive, textile material etc., these materials discharge formaldehyde easily and endanger healthy.When particularly summer, the room was airtight relatively, temperature height, formaldehyde discharge to be accelerated, and room air does not circulate, and has assembled a large amount of formaldehyde.And the formaldehyde residence time of glued board inside is very long, common could release more than 5 years totally, and the needs that have could discharge more than 10 years fully, therefore need long-term formaldehyde to administer.At present, the method that formaldehyde in indoor air is removed has multiple, as photocatalysis, normal temperature plasma, ozone, absorption, chemical reaction, catalysis etc.These methods respectively have pluses and minuses, and wherein modal be the charcoal absorption material.But active carbon only has more intense suction-operated to the material of nonpolar or low pole, and very little to the formaldehyde adsorption capacity of strong polarity, and is discharged by secondary easily under the saturated and temperature condition with higher in absorption.
Summary of the invention
The purpose of this invention is to provide a kind of advantages of good adsorption effect, and can eliminate the polyfunctional group methyl aldehyde adsorption material of sorbing material secondary release formaldehyde.
The objective of the invention is to realize in the following manner:
Polyfunctional group methyl aldehyde adsorption material provided by the present invention is to be active component with molecular weight less than 200 polyfunctional group nitrogen-containing compound, is synergist with the small molecule alcohol material, with both mass ratio be 1: 1～10 mix after, load in the porous carrier.
The present invention generates stable tridimensional network product by little molecule polyfunctional group nitrogen-containing compound and little molecular polylol class synergist by multi-functional nucleophilic addition, be carried on the porous carrier again, thereby not only strengthened the adsorption efficiency of porous carrier greatly, also formaldehyde molecule is locked among this tridimensional network simultaneously, has overcome the defective that porous carrier exists secondary to discharge thus.
Little molecule polyfunctional group nitrogen-containing compound of the present invention for can with formaldehyde carry out nucleophilic addition, molecular weight is less than unification compound or mixture 200, that contain functional groups such as one or more primary amine, imines, acid amides, hydrazine, hydrazides, as melamine, hydrazine sulfate, urea, hydrochloric acid diethylenetriamine or two or more mixture wherein.
Little molecular polylol class synergist of the present invention is a molecular weight less than 200 polyalcohols, as ethylene glycol, glycerine, diethylene glycol, pentaerythrite, trimethylolethane etc., it can improve the interfacial characteristics of nitrogen-containing compound and carrier inner surface, the crystal structure of upsetting nitrogen-containing compound simultaneously, form more active site and space, formaldehyde can be reacted with the nitrogen-containing compound of bottom, improve adsorption capacity and reaction speed thus.
Porous carrier of the present invention is one or more the mixture in diatomite, zeolite molecular sieve, activated alumina, the active carbon.
In order further to strengthen the adsorption effect of PARA FORMALDEHYDE PRILLS(91,95) of the present invention and more effectively to avoid porous carrier secondary release formaldehyde, the invention provides following more optimized technical scheme:
The mixture of little molecule polyfunctional group nitrogen-containing compound and small molecule alcohol material and the mass ratio of porous carrier preferred 1～30: 30～100; More preferably 1: 1～2.
Little molecule polyfunctional group nitrogen-containing compound preferred molecular weight is less than 200 the compound that contains one or more primary amine, imines, acid amides, hydrazine, hydrazides functional group.The mixture of one or more any proportionings in melamine, hydrazine sulfate, urea, the hydrochloric acid diethylenetriamine more preferably.
The mixture of one or more any proportionings in the preferred ethylene glycol of small molecule alcohol material, glycerine, diethylene glycol, pentaerythrite, the trimethylolethane.Glycerine more preferably.
Preferred 0.3mm～the 2mm of the particle diameter of porous carrier; The preferred specific area of porous carrier is greater than 500m
2The material of/g; The preferred aperture of porous carrier is the material of 0.7nm～20nm.
The present invention can adopt following method in the preparation:
Little molecule polyfunctional group nitrogen-containing compound and little molecular polylol class synergist are made into maceration extract by formula ratio, while stirring maceration extract are added in the porous carrier then, addition is good a small amount of unnecessary liquid just to occur.Dry 3h～8h down at 50 ℃～90 ℃ then.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment, but embodiment is not construed as limiting the present invention.
Embodiment 1
Little molecule polyfunctional group nitrogen-containing compound is the hydrochloric acid diethylenetriamine, and little molecular polylol is a diethylene glycol, and porous carrier is spherical 13X molecular sieve.
Hydrochloric acid diethylenetriamine 40g is mixed with diethylene glycol 80g, add water-soluble the separating of 400mL and be made into maceration extract.With the spherical 13X molecular sieve of maceration extract adding 1000 gram diameter 0.5mm, dry 5h down in 85 ℃.
Embodiment 2
Little molecule polyfunctional group nitrogen-containing compound is the mixture of melamine and hydrazine sulfate, and little molecular polylol is a glycerine, and porous carrier is that diameter is the spherical activated alumina of 2mm.
Melamine 80g is mixed with hydrazine sulfate 50g, add glycerine 70g and stir, add water-soluble the separating of 400mL again and be made into maceration extract; Maceration extract is added in the spherical activated alumina of 1000 gram diameter 2mm, dry 8h down at 55 ℃.
Embodiment 3
Little molecule polyfunctional group nitrogen-containing compound is the mixture of urea and hydrochloric acid diethylenetriamine, and little molecular polylol is a glycerine, and porous carrier is that diameter is the column coal mass active carbon of 1.5mm.
Urea 30g is mixed with hydrochloric acid diethylenetriamine 50g, add glycerine 40g and stir, add water-soluble the separating of 1000mL and be made into maceration extract.Maceration extract is added in the column coal mass active carbon of 1000 gram diameter 1.5mm, dry 6h down in 75 ℃.
Embodiment 4
(1) be that pollutant carries out dynamic adsorption experiment with formaldehyde.Experiment condition: inlet concentration of formaldehyde 1.6mg/m
3, material usage 10mL, gas flow 2L/min buys bamboo charcoal, improvement coal mass active carbon etc. to embodiment 1, embodiment 2, embodiment 3 and supermarket respectively and organizes into groups, and is organized as group 1, group 2, group 3, group 4 successively and organizes 5, experimental data following (table 1):
Table 1
Annotate: when the outlet concentration of formaldehyde is higher than 0.07mg/m
3The time be inefficacy.
As can be seen from Table 1, the elimination efficient of polyfunctional group methyl aldehyde adsorption material PARA FORMALDEHYDE PRILLS(91,95) provided by the present invention is apparently higher than bamboo charcoal and improvement coal mass active carbon.It is better wherein to prepare material result with the little molecule polyfunctional group of mixed type nitrogen-containing compound especially.
(2) be that pollutant carries out Staticadsorption experiment with formaldehyde.Experiment condition: concentration of formaldehyde 1.4mg/m
3, material usage 10mL, chamber volume 200L, experimental period 100 minutes.
Experimental result: embodiment 1 concentration of formaldehyde elimination factor all reaches 93%, embodiment 2, embodiment 3 concentration of formaldehyde elimination factors all reach 96%, and the bamboo charcoal group is 87%, and improvement coal mass active carbon group is 82%.
(3) absorb the total amount test:
Experimental technique is with dynamically adsorption cleaning efficient experiment, when the outlet concentration of formaldehyde is higher than 0.07mg/m
3The time be inefficacy, before the experiment sorbing material is weighed, and carries out once, when exit concentration reaches 0.05mg/m every measurement in a hour to measuring duration inlet concentration and exit concentration
3Measure once every half an hour when above, when being 5g, example 1 can reach 56 hours, and example 2 can reach 65.5 hours, and example 3 can reach 72 hours, and is higher more than 20 times than bamboo charcoal product, and is higher more than 50 times than the improvement coal mass active carbon.
The preparation method of embodiment 4-8 is same as the previously described embodiments, and just set of dispense shows all have effect of the present invention than different but test.Concrete set of dispense ratio sees table 2. for details
Table 2:
Claims (10)
1. polyfunctional group methyl aldehyde adsorption material is characterized in that it is is active component with little molecule polyfunctional group nitrogen-containing compound, is synergist with the small molecule alcohol material, with both mass ratioes be 1: 1～10 mix after, load in the porous carrier.
2. polyfunctional group methyl aldehyde adsorption material according to claim 1 is characterized in that the mixture of said little molecule polyfunctional group nitrogen-containing compound and small molecule alcohol material and the mass ratio of porous carrier are 1～30: 30～100.
3. polyfunctional group methyl aldehyde adsorption material according to claim 1 and 2 is characterized in that said little molecule polyfunctional group nitrogen-containing compound is a molecular weight less than 200 the compound that contains one or more primary amine, imines, acid amides, hydrazine, hydrazides functional group.
4. polyfunctional group methyl aldehyde adsorption material according to claim 1 and 2 is characterized in that the mixture that said little molecule polyfunctional group nitrogen-containing compound is one or more any proportionings in melamine, hydrazine sulfate, urea, the hydrochloric acid diethylenetriamine.
5. polyfunctional group methyl aldehyde adsorption material according to claim 1 and 2 is characterized in that said small molecule alcohol material is the mixture of one or more any proportionings in ethylene glycol, glycerine, diethylene glycol, pentaerythrite, the trimethylolethane.
6. polyfunctional group methyl aldehyde adsorption material according to claim 1 and 2 is characterized in that said small molecule alcohol material is a glycerine.
7. according to polyfunctional group methyl aldehyde adsorption material according to claim 1 and 2, it is characterized in that said little molecule polyfunctional group nitrogen-containing compound and small molecule alcohol material are that the mass ratio of synergist is 1: 1～2.
8. polyfunctional group methyl aldehyde adsorption material according to claim 1 and 2 is characterized in that said porous carrier particle diameter is 0.3mm～2mm.
9. polyfunctional group methyl aldehyde adsorption material according to claim 1 and 2 is characterized in that its specific area of said porous carrier is greater than greater than 500m
2/ g.
10. polyfunctional group methyl aldehyde adsorption material according to claim 1 and 2 is characterized in that its aperture of said porous carrier is 0.7nm～20nm.
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| CN 201110031053 CN102101040A (en) | 2011-01-28 | 2011-01-28 | Polyfunctional formaldehyde adsorption material |
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| CN 201110031053 CN102101040A (en) | 2011-01-28 | 2011-01-28 | Polyfunctional formaldehyde adsorption material |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827366A (en) * | 2012-07-20 | 2012-12-19 | 上海谊和环保材料有限公司 | Polymeric adsorbent for removing formaldehyde and preparation method thereof |
| CN104437027A (en) * | 2014-11-26 | 2015-03-25 | 成都顺发消洗科技有限公司 | Household formaldehyde elimination agent |
| CN104475032A (en) * | 2014-11-26 | 2015-04-01 | 成都顺发消洗科技有限公司 | Adsorption reaction type formaldehyde scavenger and preparation method thereof |
| CN104475031A (en) * | 2014-11-26 | 2015-04-01 | 成都顺发消洗科技有限公司 | Preparation method of adsorption reaction type formaldehyde remover |
| CN105517702A (en) * | 2013-09-13 | 2016-04-20 | 东丽株式会社 | Gas adsorbent, gas adsorbing sheet, and air filter |
| CN107708855A (en) * | 2015-06-12 | 2018-02-16 | 东亚合成株式会社 | Ketone system adsorbent, adsorbent composition and deodorization processed goods |
| CN108059851A (en) * | 2018-01-17 | 2018-05-22 | 江林（贵州）高科发展股份有限公司 | Modified plant fibers plastic composite that a kind of low aldehyde ketone distributes and application thereof |
| CN108219259A (en) * | 2018-01-17 | 2018-06-29 | 江林（贵州）高科发展股份有限公司 | A kind of polypropylene material for manufacturing automotive upholstery and preparation method thereof and purposes |
| CN108341992A (en) * | 2018-01-17 | 2018-07-31 | 江林（贵州）高科发展股份有限公司 | A kind of modified porous material and application thereof suitable for polypropylene material |
| CN111686699A (en) * | 2019-03-13 | 2020-09-22 | 宁波方太厨具有限公司 | Formaldehyde adsorption material and preparation method thereof |
| CN114345103A (en) * | 2021-12-08 | 2022-04-15 | 菏泽昭华环境检测有限公司 | Efficient formaldehyde removing preparation |
| CN115845591A (en) * | 2022-11-30 | 2023-03-28 | 路建霞 | Absorption liquid with air purification function and preparation method and application thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827366A (en) * | 2012-07-20 | 2012-12-19 | 上海谊和环保材料有限公司 | Polymeric adsorbent for removing formaldehyde and preparation method thereof |
| CN105517702A (en) * | 2013-09-13 | 2016-04-20 | 东丽株式会社 | Gas adsorbent, gas adsorbing sheet, and air filter |
| CN105517702B (en) * | 2013-09-13 | 2017-12-29 | 东丽株式会社 | Adsorbent and gas suction sheet and air cleaner |
| CN104437027A (en) * | 2014-11-26 | 2015-03-25 | 成都顺发消洗科技有限公司 | Household formaldehyde elimination agent |
| CN104475032A (en) * | 2014-11-26 | 2015-04-01 | 成都顺发消洗科技有限公司 | Adsorption reaction type formaldehyde scavenger and preparation method thereof |
| CN104475031A (en) * | 2014-11-26 | 2015-04-01 | 成都顺发消洗科技有限公司 | Preparation method of adsorption reaction type formaldehyde remover |
| CN107708855A (en) * | 2015-06-12 | 2018-02-16 | 东亚合成株式会社 | Ketone system adsorbent, adsorbent composition and deodorization processed goods |
| CN108059851A (en) * | 2018-01-17 | 2018-05-22 | 江林（贵州）高科发展股份有限公司 | Modified plant fibers plastic composite that a kind of low aldehyde ketone distributes and application thereof |
| CN108219259A (en) * | 2018-01-17 | 2018-06-29 | 江林（贵州）高科发展股份有限公司 | A kind of polypropylene material for manufacturing automotive upholstery and preparation method thereof and purposes |
| CN108341992A (en) * | 2018-01-17 | 2018-07-31 | 江林（贵州）高科发展股份有限公司 | A kind of modified porous material and application thereof suitable for polypropylene material |
| CN111686699A (en) * | 2019-03-13 | 2020-09-22 | 宁波方太厨具有限公司 | Formaldehyde adsorption material and preparation method thereof |
| CN111686699B (en) * | 2019-03-13 | 2022-10-14 | 宁波方太厨具有限公司 | Formaldehyde adsorption material and preparation method thereof |
| CN114345103A (en) * | 2021-12-08 | 2022-04-15 | 菏泽昭华环境检测有限公司 | Efficient formaldehyde removing preparation |
| CN115845591A (en) * | 2022-11-30 | 2023-03-28 | 路建霞 | Absorption liquid with air purification function and preparation method and application thereof |
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Application publication date: 20110622 |