CN101658759A - Formaldehyde purifying agent and preparation method thereof - Google Patents
Formaldehyde purifying agent and preparation method thereof Download PDFInfo
- Publication number
- CN101658759A CN101658759A CN200910162558A CN200910162558A CN101658759A CN 101658759 A CN101658759 A CN 101658759A CN 200910162558 A CN200910162558 A CN 200910162558A CN 200910162558 A CN200910162558 A CN 200910162558A CN 101658759 A CN101658759 A CN 101658759A
- Authority
- CN
- China
- Prior art keywords
- flask
- formaldehyde
- add
- gram
- dilutions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a formaldehyde purifying agent and a preparation method thereof. The formaldehyde purifying agent is ammonia derivative which has addition and dehydration reaction together with carbonyl in formaldehyde, so that the molecular structure of the formaldehyde is broken; therefore, the formaldehyde purifying agent can well remove the formaldehyde in man-made boards without rebound, thus improving indoor air quality.
Description
Technical field
The present invention relates to a kind of formaldehyde purifying agent and preparation method thereof.
Background technology
Along with people's living standard improves constantly; require also to improve constantly for inhabitation, office, entertainment environment; people can fit up inhabitation, office, public place of entertainment usually; the negative effect that brings the time attractive in appearance is fitted up building materials (comprising wood furniture) exactly and is discharged into airborne toxic and harmful, and formaldehyde is one of main component.
Formaldehyde is a kind of colourless easily molten irritative gas, can absorb through respiratory tract, and health is had very big influence.Content is 0.5mg/m in room air
3Can stimulate eyes to cause and shed tears 0.6mg/m
3Shi Yinqi throat discomfort or pain, concentration is high again to cause nausea, vomit, cough, uncomfortable in chest, asthma even pulmonary emphysema; In air, reach 30mg/m
3The time can cause death at once.Long-term contact low dosage formaldehyde causes chronic respiratory disease, women's paramenia, pregnancy syndrome, and neonate's physique reduces, chromosome abnormality, even causes nasopharyngeal carcinoma.The formaldehyde of high concentration is all toxic to nervous system, immune system, liver etc.Formaldehyde also has teratogenesis, carcinogenesis, contacts the people of formaldehyde for a long time, may cause nasal cavity, oral cavity, nasopharynx, throat, skin and gastral cancer.Formaldehyde derives from artificial boards such as glued board, core-board, medium density fibre board (MDF) and particieboard, because formaldehyde has stronger cohesive, and have the hardness of strengthening sheet material and insect protected, corrosion-resistant function, produce wood-based plate at present and all use with the urea-formaldehyde resin adhesive of formaldehyde as main component.Formaldehyde residual and that have neither part nor lot in reaction environment release towards periphery gradually in the sheet material, this is to form the main body that formaldehyde in indoor air is polluted; Some producers are for profit-push in addition, use underproof sheet material to make furniture, re-use glue inferior when bonding surface lining, as a result the client buyer tool small-sized toxic emission station of going home to equal to buy back; The ornament such as the wall covering fabric that contain the formaldehyde composition, wallpaper, chemical fibre carpet, foamed plastics, paint and coating etc. also might distribute formaldehyde to environment.Measured data shows that the formaldehyde release period in sheet material and furniture, the ornament is long, and the research of Japanese horizontal guest national university thinks that the release period of indoor formaldehyde is generally 3-15!
Therefore, the removal to formaldehyde in sheet material and the air is very necessary.In the at present commercially available Related product, some product is an activated carbon class adsorbent; Some essence series products is only covered the formaldehyde flavor, and formaldehyde does not a bit have removal in fact; Some oxidized form product can partly be removed formaldehyde in the sheet material, but clearance is not as good as 50%; Removal effect was fine at that time in some organic series products brushing, but the concentration of formaldehyde bounce-back is very fast.The relevant patented technology of retrieval, the result shows that formaldehyde eliminating agent class patent retrieves 94 altogether, and some is to extract from plant, and some is the oxidized form material, from the prescription retrieval, does not have similar patent.
Summary of the invention
The technical problem that the present invention mainly solves is that formaldehyde and the formaldehyde in the composite board free in the air are converted into nontoxic material and irreversible.
The objective of the invention is to be achieved through the following technical solutions:
A kind of formaldehyde purifying agent is the derivative of ammonia, and the carbonyl generation addition-dehydration (condensation reaction) in its amino and the formaldehyde is destroyed the formaldehyde molecule structure, and molecular weight causes this reaction for irreversible greatly.
Described formaldehyde purifying agent is characterized in that: made by polyacrylamide 5 ‰～7 ‰ dilutions (1.0-2.0g/L), ethylene urea (150-250g/L), semicarbazides (50-70g/L) reaction.
In a kind of preferred embodiment, the best proportioning of above-mentioned each component is: polyacrylamide 6 ‰ dilutions (1.5g/L), ethylene urea (200g/L), semicarbazides (60g/L).
Described formaldehyde purifying agent, its synthesis technique is as follows:
(1) taking by weighing 6 gram polyacrylamide ammonia reagents (molecular weight is more than 5,000,000) dissolves in the 200ml beaker, change in the 1000ml volumetric flask, repeatedly wash beaker on a small quantity, flushing liquor is incorporated in the volumetric flask, be settled to 1000ml, this solution is designated as polyacrylamide 6 ‰ dilutions.
(2) distilled water of prepackage about 800ml in the flask of 1000ml is 9.0 ± 0.2 alkaline solution with solid sodium hydroxide powder regulator solution pH.
(3) in above-mentioned alkaline solution, add 1.5 gram polyacrylamides, 6 ‰ dilutions, add 200 gram ethylene urea reagent, add distilled water and make in the flask liquid volume approximately to 900ml.
(4) flask was put into the electric jacket agitating heating 2 hours, heating and temperature control is at 50 ℃-60 ℃.
(5) stop to add thermal agitation, be cooled to room temperature, add 60 gram semicarbazides, flask is settled to 1000ml, continue to stir 30 minutes, pour out the liquid in the flask after the stirring, packing is sealed up for safekeeping stand-by.
The prepared formaldehyde purifying agent of the present invention has following advantage:
1) the formaldehyde clearance can reach more than 90% in the sheet material, and does not rebound.
2) this process raw material are simple, and preparation process does not have complicated technology, and cost is low, and are actual workable.
The specific embodiment
With instantiation technical scheme of the present invention is described below, but protection scope of the present invention is not limited thereto.
Test method: some homotype driers, interior no drier.Some homogeneity homotype composite boards, 20cm * 10cm * 2cm.After drying 30min naturally behind the medicament brushing plate surface, place sealing in the drier, PPM-400 type formaldehyde determination instrument detects concentration of formaldehyde in the drier, value detecting unit: mg/m
3
Embodiment 1
Its synthesis technique is as follows:
(1) taking by weighing 6 gram cation polypropylene acyl ammonia (molecular weight is more than 5,000,000) dissolves in the 200ml beaker, change in the 1000ml volumetric flask, repeatedly wash beaker on a small quantity, flushing liquor is incorporated in the volumetric flask, be settled to 1000ml, this solution is designated as polyacrylamide 6 ‰ dilutions.
(2) distilled water of prepackage about 800ml in the flask of 1000ml is 9.0 ± 0.2 alkaline solution with solid sodium hydroxide powder regulator solution pH.
(3) in above-mentioned alkaline solution, add 1.5 gram polyacrylamides, 6 ‰ dilutions, add 200 gram ethylene urea reagent, add distilled water and make in the flask liquid volume approximately to 900ml.
(4) flask was put into the electric jacket agitating heating 2 hours, heating and temperature control is at 50 ℃-60 ℃.
(5) stop to add thermal agitation, be cooled to room temperature, add 60 gram semicarbazides, flask is settled to 1000ml, continue to stir 30 minutes, pour out the liquid in the flask after the stirring, packing is sealed up for safekeeping stand-by.
Repeat the process of embodiment 1, but replace the high molecular weight cation polyacrylamide, make comparative example 1 product with the low molecular weight cationic polyacrylamide.
To be applied to the removal of formaldehyde in the composite board under the product of embodiment 1, comparative example 1 product, commercially available certain product equal conditions, result of the test sees Table 1.
Table 1 different product is removed the formaldehyde effect
| Formaldehyde detection time | The product of embodiment 1 | Comparative example 1 product | Commercially available certain product |
| Brushing back the 1st day | ??0.21 | ??0.23 | ??1.21 |
| Brushing back the 10th day | ??0.23 | ??0.44 | ??1.35 |
| Brushing back the 20th day | ??0.19 | ??0.59 | ??1.16 |
| Brushing back the 30th day | ??0.22 | ??0.73 | ??1.08 |
| Brushing back the 40th day | ??0.18 | ??0.91 | ??1.47 |
| Brushing back the 50th day | ??0.20 | ??1.36 | ??1.23 |
| Brushing back the 60th day | ??0.20 | ??1.38 | ??1.26 |
The result shows: the product of embodiment 1, comparative example's 1 product to the clearance of formaldehyde in the sheet material than the clearance height of commercially available certain product to formaldehyde in the sheet material, but comparative example 1 product reduces gradually to the clearance of formaldehyde in the sheet material, that is to say that concentration of formaldehyde rebounds gradually.Comparative example 1 product is reversible reaction in the reaction of formaldehyde.
Embodiment 2
Its synthesis technique is as follows:
(1) taking by weighing 6 gram cation polypropylene acyl ammonia (molecular weight is more than 5,000,000) dissolves in the 200ml beaker, change in the 1000ml volumetric flask, repeatedly wash beaker on a small quantity, flushing liquor is incorporated in the volumetric flask, be settled to 1000ml, this solution is designated as polyacrylamide 6 ‰ dilutions.
(2) distilled water about prepackage 800ml in the flask of 1000ml.
(3) in above-mentioned solution, add 1.5 gram polyacrylamides, 6 ‰ dilutions, add 200 gram ethylene urea reagent, add distilled water and make in the flask liquid volume approximately to 900ml.
(4) flask was put into the electric jacket agitating heating 2 hours, heating and temperature control is at 50 ℃-60 ℃.
(5) stop to add thermal agitation, be cooled to room temperature, add 60 gram semicarbazides, flask is settled to 1000ml, continue to stir 30 minutes, pour out the liquid in the flask after the stirring, packing is sealed up for safekeeping stand-by.
Be applied to the removal of formaldehyde in the composite board under the product equal conditions with the product of embodiment 1, embodiment 2, result of the test sees Table 2.
Table 2 different product is removed the formaldehyde effect
| Formaldehyde detection time | The product of embodiment 1 | The product of embodiment 2 |
| Brushing back the 1st day | ??0.23 | ??2.0 |
| Brushing back the 20th day | ??0.20 | ??2.5 |
| Brushing back the 40th day | ??0.19 | ??2.1 |
| Brushing back the 60th day | ??0.18 | ??2.3 |
The result shows: the product of embodiment 2 is very poor to formaldehyde removal effect in the sheet material.The pH value of synthetic system is very big to the properties of product influence.
Embodiment 3
Its synthesis technique is as follows:
(1) taking by weighing 7 gram cation polypropylene acyl ammonia (molecular weight is more than 5,000,000) dissolves in the 200ml beaker, change in the 1000ml volumetric flask, repeatedly wash beaker on a small quantity, flushing liquor is incorporated in the volumetric flask, be settled to 1000ml, this solution is designated as polyacrylamide 7 ‰ dilutions.
(2) distilled water of prepackage about 800ml in the flask of 1000ml is 9.0 ± 0.2 alkaline solution with solid sodium hydroxide powder regulator solution pH.
(3) in above-mentioned alkaline solution, add 1.0 gram polyacrylamides, 7 ‰ dilutions, add 150 gram ethylene urea reagent, add distilled water and make in the flask liquid volume approximately to 900ml.
(4) flask was put into the electric jacket agitating heating 2 hours, heating and temperature control is at 50 ℃-60 ℃.
(5) stop to add thermal agitation, be cooled to room temperature, add 70 gram semicarbazides, flask is settled to 1000ml, continue to stir 30 minutes, pour out the liquid in the flask after the stirring, packing is sealed up for safekeeping stand-by.
Embodiment 4
Its synthesis technique is as follows:
(1) taking by weighing 6 gram cation polypropylene acyl ammonia (molecular weight is more than 5,000,000) dissolves in the 200ml beaker, change in the 1000ml volumetric flask, repeatedly wash beaker on a small quantity, flushing liquor is incorporated in the volumetric flask, be settled to 1000ml, this solution is designated as polyacrylamide 6 ‰ dilutions.
(2) distilled water of prepackage about 800ml in the flask of 1000ml is 9.0 ± 0.2 alkaline solution with solid sodium hydroxide powder regulator solution pH.
(3) in above-mentioned alkaline solution, add 2.0 gram polyacrylamides, 6 ‰ dilutions, add 250 gram ethylene urea reagent, add distilled water and make in the flask liquid volume approximately to 900ml.
(4) flask was put into the electric jacket agitating heating 2 hours, heating and temperature control is at 50 ℃-60 ℃.
(5) stop to add thermal agitation, be cooled to room temperature, add 50 gram semicarbazides, flask is settled to 1000ml, continue to stir 30 minutes, pour out the liquid in the flask after the stirring, packing is sealed up for safekeeping stand-by.
Embodiment 5
Its synthesis technique is as follows:
(1) taking by weighing 6 gram cation polypropylene acyl ammonia (molecular weight is more than 5,000,000) dissolves in the 200ml beaker, change in the 1000ml volumetric flask, repeatedly wash beaker on a small quantity, flushing liquor is incorporated in the volumetric flask, be settled to 1000ml, this solution is designated as polyacrylamide 6 ‰ dilutions.
(2) distilled water of prepackage about 800ml in the flask of 1000ml is 9.0 ± 0.2 alkaline solution with solid sodium hydroxide powder regulator solution pH.
(3) in above-mentioned alkaline solution, add 1.0 gram polyacrylamides, 6 ‰ dilutions, add 250 gram ethylene urea reagent, add distilled water and make in the flask liquid volume approximately to 900ml.
(4) flask was put into the electric jacket agitating heating 2 hours, heating and temperature control is at 50 ℃-60 ℃.
(5) stop to add thermal agitation, be cooled to room temperature, add 70 gram semicarbazides, flask is settled to 1000ml, continue to stir 30 minutes, pour out the liquid in the flask after the stirring, packing is sealed up for safekeeping stand-by.
Embodiment 6
Its synthesis technique is as follows:
(1) taking by weighing 5 gram cation polypropylene acyl ammonia (molecular weight is more than 5,000,000) dissolves in the 200ml beaker, change in the 1000ml volumetric flask, repeatedly wash beaker on a small quantity, flushing liquor is incorporated in the volumetric flask, be settled to 1000ml, this solution is designated as polyacrylamide 5 ‰ dilutions.
(2) distilled water of prepackage about 800ml in the flask of 1000ml is 9.0 ± 0.2 alkaline solution with solid sodium hydroxide powder regulator solution pH.
(3) in above-mentioned alkaline solution, add 2.0 gram polyacrylamides, 5 ‰ dilutions, add 200 gram ethylene urea reagent, add distilled water and make in the flask liquid volume approximately to 900ml.
(4) flask was put into the electric jacket agitating heating 2 hours, heating and temperature control is at 50 ℃-60 ℃.
(5) stop to add thermal agitation, be cooled to room temperature, add 60 gram semicarbazides, flask is settled to 1000ml, continue to stir 30 minutes, pour out the liquid in the flask after the stirring, packing is sealed up for safekeeping stand-by.
Be applied to the removal of formaldehyde in the composite board under the product equal conditions with the product of the product of the product of the product of embodiment 1, embodiment 3, embodiment 4, embodiment 5, embodiment 6, result of the test sees Table 3.
Table 3 different product is removed the formaldehyde effect
| Formaldehyde detection time | The product of embodiment 1 | The product of embodiment 3 | The product of embodiment 4 | The product of embodiment 5 | The product of embodiment 6 |
| Brushing back the 1st day | ??0.23 | ??0.26 | ??0.21 | ??0.22 | ??0.19 |
| Brushing back the 20th day | ??0.20 | ??0.22 | ??0.17 | ??0.16 | ??0.24 |
| Brushing back the 40th day | ??0.19 | ??0.24 | ??0.19 | ??0.20 | ??0.21 |
| Brushing back the 60th day | ??0.18 | ??0.19 | ??0.23 | ??0.22 | ??0.18 |
The result shows: the product of the product of the product of embodiment 1, embodiment 3, the product of embodiment 4, embodiment 5, the product of embodiment 6 are all fine to the formaldehyde removal effect in the sheet material, so be protection scope of the present invention.
Claims (3)
1, a kind of formaldehyde purifying agent is characterized in that: made by polyacrylamide 5 ‰～7 ‰ dilutions (1.0-2.0g/L), ethylene urea (150-250g/L), semicarbazides (50-70g/L) reaction.
2, the formaldehyde purifying agent in the claim 1, wherein polyacrylamide 6 ‰ dilutions (1.5g/L), ethylene urea (200g/L), semicarbazides (60g/L).
3, the reaction in the claim 1 is as follows:
(1) taking by weighing 6 gram polyacrylamide ammonia reagents (molecular weight is more than 5,000,000) dissolves in the 200ml beaker, change in the 1000ml volumetric flask, repeatedly wash beaker on a small quantity, flushing liquor is incorporated in the volumetric flask, be settled to 1000ml, this solution is designated as polyacrylamide 6 ‰ dilutions.
(2) distilled water of prepackage about 800ml in the flask of 1000ml is 9.0 ± 0.2 alkaline solution with solid sodium hydroxide powder regulator solution pH.
(3) in above-mentioned alkaline solution, add 1.5 gram polyacrylamides, 6 ‰ dilutions, add 200 gram ethylene urea reagent, add distilled water and make in the flask liquid volume approximately to 900ml.
(4) flask was put into the electric jacket agitating heating 2 hours, heating and temperature control is at 50 ℃-60 ℃.
(5) stop to add thermal agitation, be cooled to room temperature, add 60 gram semicarbazides, flask is settled to 1000ml, continue to stir 30 minutes, pour out the liquid in the flask after the stirring, packing is sealed up for safekeeping stand-by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910162558A CN101658759A (en) | 2009-08-03 | 2009-08-03 | Formaldehyde purifying agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910162558A CN101658759A (en) | 2009-08-03 | 2009-08-03 | Formaldehyde purifying agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101658759A true CN101658759A (en) | 2010-03-03 |
Family
ID=41787139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910162558A Pending CN101658759A (en) | 2009-08-03 | 2009-08-03 | Formaldehyde purifying agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101658759A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324692A (en) * | 2014-11-28 | 2015-02-04 | 安徽理工大学 | Preparation method of active carbon capable of removing formaldehyde |
| CN104353425A (en) * | 2014-11-28 | 2015-02-18 | 安徽理工大学 | Coal ash capable of adsorbing formaldehyde and preparation method of coal ash |
| CN107126827A (en) * | 2017-05-16 | 2017-09-05 | 成都森态源环保科技有限公司 | A kind of high-efficiency broad spectrum long-acting type formaldehyde VOC cleansers |
| CN114307605A (en) * | 2022-01-06 | 2022-04-12 | 侯庆平 | Air purifying agent and preparation method thereof |
-
2009
- 2009-08-03 CN CN200910162558A patent/CN101658759A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324692A (en) * | 2014-11-28 | 2015-02-04 | 安徽理工大学 | Preparation method of active carbon capable of removing formaldehyde |
| CN104353425A (en) * | 2014-11-28 | 2015-02-18 | 安徽理工大学 | Coal ash capable of adsorbing formaldehyde and preparation method of coal ash |
| CN104353425B (en) * | 2014-11-28 | 2016-10-12 | 安徽理工大学 | A kind of flyash of energy formaldehyde adsorption and preparation method thereof |
| CN104324692B (en) * | 2014-11-28 | 2016-11-30 | 安徽理工大学 | A kind of preparation method of the activated carbon that can eliminate formaldehyde |
| CN107126827A (en) * | 2017-05-16 | 2017-09-05 | 成都森态源环保科技有限公司 | A kind of high-efficiency broad spectrum long-acting type formaldehyde VOC cleansers |
| CN114307605A (en) * | 2022-01-06 | 2022-04-12 | 侯庆平 | Air purifying agent and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9517435B2 (en) | Formaldehyde absorbent and method for using the same | |
| CN104874267A (en) | Formaldehyde cleaning agent | |
| CN104841254A (en) | Indoor formaldehyde scavenger | |
| CN103055465B (en) | A kind of oil-soluble formaldehyde scavenger and preparation method thereof | |
| CN104841259A (en) | Indoor formaldehyde purification method | |
| CN103525152A (en) | Anti-formaldehyde putty powder and preparation method thereof | |
| CN105220579B (en) | A kind of pollution-free anion facing paper of environment-friendly novel | |
| KR101540754B1 (en) | Natural Finishing Composition and Production Method Thereof | |
| CN101658759A (en) | Formaldehyde purifying agent and preparation method thereof | |
| CN104857663A (en) | Formaldehyde scavenging agent for artificial board | |
| KR20180018545A (en) | Ketone-based gas adsorbent, gas adsorbent composition, and deodorant processed goods | |
| CN104403399A (en) | Internal wall putty with humidity-regulating and moistureproof functions | |
| ES2436360T3 (en) | Use of modified nanoparticles in wood-derived materials to reduce the emission of volatile organic compounds (VOCs) | |
| CN101574640A (en) | Mineral micro powder lasting aldehyde and odor removing bag | |
| CN102836519B (en) | Catalyst for removing indoor formaldehyde pollution | |
| CN103421173A (en) | Formaldehyde-purifying alkyd resin and preparation method thereof | |
| CN100410329C (en) | Method and aqueous adhesive composition for the production of panels made from vegetable matter | |
| BRPI0714975A2 (en) | use of wood materials | |
| CN105561767A (en) | Capture type formaldehyde scavenger | |
| CN105964133A (en) | Method for eliminating formaldehyde with biological protease | |
| CN101898076A (en) | Indoor polluted gas scavenger and preparation method and use thereof | |
| CN104742214A (en) | Fiberboard with formaldehyde adsorption performance and manufacturing method of fiberboard | |
| WO2015048918A1 (en) | Biocidal resin composition including one or a plurality of resins selected from mf, uf, pf, muf and phenolic resins; and more than one soluble copper salt | |
| CN100404574C (en) | Low formaldehyde release volume urea formaldehyde resin preparation method | |
| CN101954270B (en) | Formaldehyde absorbent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100303 |