CN1359992A - Blocking absorbent of formaldehyde and its preparing process and application - Google Patents
Blocking absorbent of formaldehyde and its preparing process and application Download PDFInfo
- Publication number
- CN1359992A CN1359992A CN 01138098 CN01138098A CN1359992A CN 1359992 A CN1359992 A CN 1359992A CN 01138098 CN01138098 CN 01138098 CN 01138098 A CN01138098 A CN 01138098A CN 1359992 A CN1359992 A CN 1359992A
- Authority
- CN
- China
- Prior art keywords
- formaldehyde
- absorbent
- blocking absorbent
- blocking
- water
- 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.)
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Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 227
- 239000002250 absorbent Substances 0.000 title claims abstract description 46
- 230000002745 absorbent Effects 0.000 title claims abstract description 46
- 230000000903 blocking effect Effects 0.000 title claims description 45
- 238000000034 method Methods 0.000 title claims description 17
- 230000008569 process Effects 0.000 title claims description 4
- 239000007787 solid Substances 0.000 claims abstract description 20
- 229920001661 Chitosan Polymers 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 235000019256 formaldehyde Nutrition 0.000 description 64
- 239000000463 material Substances 0.000 description 12
- 239000004744 fabric Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 206010002198 Anaphylactic reaction Diseases 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 206010048222 Xerosis Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000036783 anaphylactic response Effects 0.000 description 1
- 208000003455 anaphylaxis Diseases 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 231100000652 hormesis Toxicity 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- -1 polyoxyethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 230000009978 visual deterioration Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
A formaldehyde absorbent in sealed condition is prepared from chitosan, acetic acid and water. It can be used by spraying it on the surface of furniture or floor to absorb the formaldehyde released by them, or by preparing its solid and arranging the solid in furniture. Its advantages are high effect, no toxicity, and high resistance to high temp and rubbing.
Description
Technical field
The present invention relates to a kind of preparation that is used to absorb formaldehyde, particularly a kind of preparation that seals and absorb at the free formaldehyde that house decorative material or fabric discharged and preparation method thereof and using method.
Background technology
Along with improving constantly of people's living standard, indoor decoration is also more and more exquisite.When people enjoyed good life, the pollution of indoor environment also became a problem that presses for solution.At present, the chemical substance that house decorative material discharged is the main source of pollution of indoor environment.And pollute in the indoor chemical substance at these, formaldehyde is to the harm maximum of human body.
Formaldehyde all has strong impulse to the upper respiratory tract, eyes, mucous membrane and the skin of human body.Long-term contact formaldehyde gas, can occur dizziness, headache, weak, perspire is superfluous, xerosis cutis is broken and symptom such as visual deterioration.In addition, according to the report of international cancer research institution, formaldehyde can cause lung cancer and anaphylaxis.Formaldehyde is defined as carcinogenic substance by the World Health Organization.
Formaldehyde mainly shows allotriosmia and hormesis to the healthy effect of human body, when its concentration at 0.06～0.07mg/m
3The time, symptoms such as asthma will take place in children.Show that through statistics in 5 months even 10 months, its indoor concentration of formaldehyde also has 0.08mg/m after finishing is finished at present many families to mass data
3More than, had a strong impact on people's health.
Although national standard " hygienic standard of formaldehyde in the indoor air " regulation: the maximum allowable concentration of formaldehyde is 0.08mg/m in the indoor air
3, but most family does not have condition PARA FORMALDEHYDE PRILLS(91,95) concentration to detect.Even with good conditionsi, also may not recognize or check fee that the price paid of being unwilling is high and not detecting.
Therefore, after house decoration is at present finished, adopt the method that makes window ventilate and wait for a period of time and live usually.This is a kind of passive method, and it brings very big inconvenience for the life of resident family; Simultaneously,,, also have formaldehyde in the finishing material and discharge, indoor environment is polluted even passed through for some time because formaldehyde is contained in the finishing material.
Another kind of situation is that the effect of some fabric in order to obtain exempting to press adds the permanent set agent therein.And also can discharge formaldehyde in the permanent set agent, cause harm to the fabric user.
The product appearance that has some to be used to absorb, eliminate or reduce burst size of methanal at present, but all exist certain weak point, mainly show:
1, some product directly is that matrix infiltrates in the coating with coating, cause with coating in composition generation chemical reaction, reduced service efficiency;
2, some product is water miscible, not scrubbing resistance;
3, some product can only be used for being beneficial to medicament and infiltrating sheet material inside before the paint brushing, but may destroy the dissociation equilibrium of yuban like this, reduces the intensity of sheet material;
4, some product has color, uses the back to influence the color and luster of furniture, finishing material or fabric;
5, generate other organic volatile behind some product and the formaldehyde reaction, cause secondary pollution;
6, the actual absorption effect of some product is bad.
Simultaneously, the relevant patent of also having no talent and applying for absorbing specially formaldehyde.
Summary of the invention
The objective of the invention is to absorb existing the problems referred to above in order to solve in indoor environment and the fabric formaldehyde, provide a kind of practical, absorb effective blocking absorbent of formaldehyde.
Another object of the present invention provides the preparation method of above-mentioned blocking absorbent of formaldehyde.
Another purpose of the present invention provides a kind of using method of above-mentioned blocking absorbent of formaldehyde.
For achieving the above object, the present invention has adopted following technical proposal: this blocking absorbent of formaldehyde mainly is made up of chitosan, acetate and water.
The weight proportion of each composition is in this blocking absorbent of formaldehyde: 5～50 parts of chitosans, 5～50 parts of acetate, 800～1000 parts in water.
The structural formula of chitosan (chitosan) is:
Chitosan has very strong film forming properties.After chitosan is dissolved in acetate, can form water white thickness colloidal sol.This colloidal sol is sprayed or is brushed on solid surface, can form the very thin colourless or slightly coloured transparent film of one deck.This film is nontoxic to human body, and can suppress the growth of bacterium, is not dissolved by neutrality, alkalescence and organic solvent, has certain thermotolerance and physical strength.Therefore, this blocking absorbent of formaldehyde at first is closed the formaldehyde in the source of pollution that sprayed, and it can not be discharged in air.
Simultaneously, free hydroxyl in the chitosan molecular chain of this blocking absorbent of formaldehyde and amino also can with formaldehyde generation crosslinking reaction.When room temperature during 20 ℃ of left and right sides, formaldehyde mainly generates western Buddhist alkali and N-methylol chitosan substituent with the form and the reaction of the amino on the chitosan of hydrate; When room temperature during 40 ℃ of left and right sides, formaldehyde also can react with the hydroxyl in the chitosan molecular linkage.The chemical equation of the hydration reaction of formaldehyde is:
The chemical equation of formaldehyde and chitosan reaction is:
The speed of this reaction is very fast, can take place in the higher mucus of water content, also can on the heterogeneous interface of cured film, take place, and also broad of the pH value scope that reacts.The product of above-mentioned reaction, its chemical property are all very stable, harmless.
The essence that also can contain trace in the above-mentioned blocking absorbent of formaldehyde is to improve its practical effect.
The preparation method of above-mentioned blocking absorbent of formaldehyde follows these steps to carry out:
(1) chitosan is put into container A, add after the entry sealing and place;
(2) with acetate water-soluble after, be positioned in the container B;
(3) after the vibration container A makes it to form suspension liquid, again the liquid in the container B is poured in the container A, after stirring slightly, promptly got blocking absorbent of formaldehyde.
Resulting blocking absorbent of formaldehyde is generally water white transparency or weak yellow liquid.
In the aforesaid method, in the water-soluble process of acetate, can add essence.
Common using method is the blocking absorbent of formaldehyde spraying of will be prepared or brushes in solid surface such as furniture, floors, treats just can form water white film after its seasoning, can seal, absorbs or reduce the release of formaldehyde.
Also the blocking absorbent of formaldehyde prepared can be added in the washing water, pending fabric is placed in the water rinsing press to do or dry getting final product after the dehydration once.At this moment, blocking absorbent of formaldehyde not only can reduce the burst size of free formaldehyde in the fabric, can also increase the well-pressed degree of fabric, makes fabric have certain deodorization mildew-resistant effect.
The another kind of using method of above-mentioned blocking absorbent of formaldehyde is:
(1) above-mentioned blocking absorbent of formaldehyde is poured in the water diluted;
(2) in the solution that is diluted, add cavernous solid carrier;
(3) treat solid carrier drenched back taking-up, press dry;
(4) solid carrier is dried or is placed in the hot blast dry.
The resultant like this blocking absorbent of formaldehyde that has solid carrier can be described as solid type blocking absorbent of formaldehyde.It both can directly have been put into furniture and use, and also can make in the filter material of air purifier or conditioner, to reduce airborne formaldehyde content.
Compared with prior art, blocking absorbent of formaldehyde provided by the present invention has following advantage:
1, can directly be sprayed at the surface of furniture, floor or fabric in use, and have the characteristics of nontoxic, heat-resisting and anti-scouring, be very suitable for using in the average family.
2, no matter this blocking absorbent of formaldehyde still all can use on furniture or finishing material after the paint before paint.
3, this blocking absorbent of formaldehyde is a colourless transparent liquid, does not influence the paint and the finishing effect of furniture or finishing material after the use.
When 4, adopting solid type blocking absorbent of formaldehyde, as long as directly be positioned in the wardrobe, pollution clothes not uses and changes very convenient.
5, this blocking absorbent of formaldehyde can not only absorb formaldehyde, and can form the layer of transparent film, seals, and reduces burst size of methanal.
6, after this blocking absorbent of formaldehyde is used on furniture or the finishing material, also has the effect of antibacterial mildew-resistant.
Show that after tested this blocking absorbent of formaldehyde has significant effect to the burst size and the airborne formaldehyde content of reduction of formaldehyde in the restriction timber.
Embodiment
In the present embodiment, contain 30 gram chitosans, 29.5 gram acetate, 940 gram water and 0.5 gram essence in the 1000 gram blocking absorbent of formaldehyde.During preparation, at first 30 gram chitosans are put into container A, sealing is placed behind the adding 470 gram water; Then, 29.5 gram acetate and 0.5 gram essence are dissolved in the 470 gram water, can is in container B; At last, the vibration container A makes it to form even suspension liquid, again liquid in the container B is poured into container A, promptly obtains blocking absorbent of formaldehyde after stirring a little.
In order to prevent that this blocking absorbent of formaldehyde from decomposition taking place wait chemical transformation after placing the long period, in actual application, can prepare before use.
When producing solid type blocking absorbent of formaldehyde, in the present embodiment, its solid carrier adopts gauze.Gauze has the porous feature, and specific surface area is bigger, and gas sees through easily.This blocking absorbent of formaldehyde at first is poured in the water when using and dilutes, and puts into gauze then.The drenched back of gauze is taken out dries.Resulting solid type blocking absorbent of formaldehyde can directly be put in the wardrobe and use.
Above-mentioned solid carrier also can adopt gac.Its resulting solid type formaldehyde is absorbed agent and is used for air purifier mainly as filter material.
Another using method of above-mentioned blocking absorbent of formaldehyde is that directly joining above-mentioned blocking absorbent of formaldehyde with polyacrylic acid, polyvinyl alcohol, polyoxyethylene glycol, cellulose acetate, oxyethane or carboxymethyl cellulose etc. is in the coating of film-forming components, not only can make coating have the effect that absorbs formaldehyde, also can reduce the burst size of filmogen free monomer in the coating.
After this blocking absorbent of formaldehyde is sprayed at the surface of source of pollution such as furniture or floor, rise the sealing process except forming clear films, can also with formaldehyde generation chemical reaction, absorb formaldehyde.
Claims (8)
1, a kind of blocking absorbent of formaldehyde is characterized in that it mainly is made up of chitosan, acetate and water.
2, blocking absorbent of formaldehyde according to claim 1 is characterized in that the weight proportion of each composition in this blocking absorbent of formaldehyde is: 5～50 parts of chitosans, 5～50 parts of acetate, 800～1000 parts in water.
3, blocking absorbent of formaldehyde according to claim 1 and 2 is characterized in that also containing in this blocking absorbent of formaldehyde micro-essence.
4, a kind of preparation method by the described blocking absorbent of formaldehyde of claim 1 to 3 is characterized in that this preparation method follows these steps to carry out:
(1) chitosan is put into container A, add after the entry sealing and place;
(2) with acetate water-soluble after, be positioned in the container B;
(3) after the vibration container A makes it to form suspension liquid, again the liquid in the container B is poured in the container A, after stirring slightly, promptly got blocking absorbent of formaldehyde.
5, preparation method according to claim 4 is characterized in that among the described preparation method, adds essence in the water-soluble process of acetate.
6, a kind of using method by the described blocking absorbent of formaldehyde of claim 1 to 3 is characterized in that this using method is:
(1) above-mentioned blocking absorbent of formaldehyde is poured in the water diluted;
(2) in the solution that is diluted, add cavernous solid carrier;
(3) treat solid carrier drenched back taking-up, press dry;
(4) solid carrier is dried or is placed in the hot blast dry.
7, using method according to claim 6 is characterized in that described solid carrier adopts gauze.
8, using method according to claim 6 is characterized in that described solid carrier adopts gac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01138098 CN1359992A (en) | 2001-12-31 | 2001-12-31 | Blocking absorbent of formaldehyde and its preparing process and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01138098 CN1359992A (en) | 2001-12-31 | 2001-12-31 | Blocking absorbent of formaldehyde and its preparing process and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1359992A true CN1359992A (en) | 2002-07-24 |
Family
ID=4674385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01138098 Pending CN1359992A (en) | 2001-12-31 | 2001-12-31 | Blocking absorbent of formaldehyde and its preparing process and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1359992A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362045B (en) * | 2008-09-08 | 2012-02-15 | 江南大学 | High-concentration formaldehyde exhaust-gas resource treatment technique |
| CN102921267A (en) * | 2012-10-24 | 2013-02-13 | 袁志强 | Filtering structure of furniture plate drying room |
| CN105111654A (en) * | 2015-09-18 | 2015-12-02 | 佛山市合璟节能环保科技股份有限公司 | Preparation method of biomass film agent for shielding and reducing pollution |
| CN107189653A (en) * | 2017-07-18 | 2017-09-22 | 合肥峰腾节能科技有限公司 | A kind of weather-proof floor paint vehicle of high-performance environment-friendly and preparation method thereof |
| CN107456841A (en) * | 2017-01-12 | 2017-12-12 | 伦慧东 | A kind of formaldehyde catching agent and the purification of air kit comprising the agent for capturing |
| CN107459874A (en) * | 2017-01-12 | 2017-12-12 | 伦慧东 | A kind of sealer and preparation method thereof |
| CN107469270A (en) * | 2017-01-12 | 2017-12-15 | 伦慧东 | It is a kind of to purify and maintain room air construction method up to standard |
| CN107952362A (en) * | 2016-10-17 | 2018-04-24 | 秦素洁 | It is a kind of to be used for rapidly and efficiently solid composite material of purifying formaldehyde and preparation method thereof |
| CN111773605A (en) * | 2019-04-03 | 2020-10-16 | 江门市蓬江区骉牌环保科技有限公司 | Formaldehyde scavenging agent |
| CN114849441A (en) * | 2022-05-25 | 2022-08-05 | 李晓雅 | Formaldehyde scavenging agent and formaldehyde scavenging method thereof |
-
2001
- 2001-12-31 CN CN 01138098 patent/CN1359992A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362045B (en) * | 2008-09-08 | 2012-02-15 | 江南大学 | High-concentration formaldehyde exhaust-gas resource treatment technique |
| CN102921267A (en) * | 2012-10-24 | 2013-02-13 | 袁志强 | Filtering structure of furniture plate drying room |
| CN105111654A (en) * | 2015-09-18 | 2015-12-02 | 佛山市合璟节能环保科技股份有限公司 | Preparation method of biomass film agent for shielding and reducing pollution |
| CN107952362A (en) * | 2016-10-17 | 2018-04-24 | 秦素洁 | It is a kind of to be used for rapidly and efficiently solid composite material of purifying formaldehyde and preparation method thereof |
| CN107456841A (en) * | 2017-01-12 | 2017-12-12 | 伦慧东 | A kind of formaldehyde catching agent and the purification of air kit comprising the agent for capturing |
| CN107459874A (en) * | 2017-01-12 | 2017-12-12 | 伦慧东 | A kind of sealer and preparation method thereof |
| CN107469270A (en) * | 2017-01-12 | 2017-12-15 | 伦慧东 | It is a kind of to purify and maintain room air construction method up to standard |
| CN107189653A (en) * | 2017-07-18 | 2017-09-22 | 合肥峰腾节能科技有限公司 | A kind of weather-proof floor paint vehicle of high-performance environment-friendly and preparation method thereof |
| CN111773605A (en) * | 2019-04-03 | 2020-10-16 | 江门市蓬江区骉牌环保科技有限公司 | Formaldehyde scavenging agent |
| CN114849441A (en) * | 2022-05-25 | 2022-08-05 | 李晓雅 | Formaldehyde scavenging agent and formaldehyde scavenging method thereof |
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