CN100384601C - For maldehyde eliminating agent and prepn. process thereof - Google Patents
For maldehyde eliminating agent and prepn. process thereof Download PDFInfo
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- CN100384601C CN100384601C CNB2006100569357A CN200610056935A CN100384601C CN 100384601 C CN100384601 C CN 100384601C CN B2006100569357 A CNB2006100569357 A CN B2006100569357A CN 200610056935 A CN200610056935 A CN 200610056935A CN 100384601 C CN100384601 C CN 100384601C
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Abstract
The present invention provides a formaldehyde eliminating agent and a preparation method thereof, and the formaldehyde eliminating agent is used for eliminating formaldehyde pollution in indoor air and reducing formaldehyde releasing contents in artificial boards and furniture manufactured products. The formaldehyde eliminating agent is prepared from 500 to 650 parts by weight of inorganic dispersion media, 20 to 160 parts by weight of acid compounds, 100 to 400 parts by weight of multiple amine-group compounds or amido macromolecular compounds, 10 to 80 parts by weight of salt compounds, 0.01 to 0.5 part by weight of high water absorption resin, and 0.1 to 5 parts by weight of acetic acid acetyl ethyl ester through copolymerization and blending. The formaldehyde eliminating agent of the present invention has the advantages of high elimination rate of the formaldehyde, capacity of reaching more than 80% after being used for thirty minutes, enduring effect (a validity period can reach more than thirty days), low cost of raw materials (only one to five yuan per kilogram), simple production process and low preparation cost (the preparation cost is greatly lower than that of the existing sold products in markets).
Description
Technical field
The present invention relates to a kind of preparation of eliminating harmful chemical and preparation method thereof, particularly a kind of formaldehyde eliminating agent and preparation method thereof.
Background technology
Along with improving constantly of living standards of the people, decorations, purchase new furniture and become usual thing in the people life.All kinds of wood-based plates of often a large amount of uses during decorations and furniture are made, as glued board, core-board, medium density fibre board (MDF), particieboard etc., and these wood-based plates mostly are to use formaldehyde to be adhesive, mainly to be that urea-formaldehyde resin adhesive is made, exist formaldehyde and discharge problem, usually become the main source that formaldehyde in indoor air is polluted.And, though the burst size of methanal of these wood-based plates can be gradually in a period of time descended, also can keep a metastable burst size for a long time after dropping to a certain degree.In addition, contain formaldehyde in some interior wall coating and other coating, can when covering with paint, lacquer, colour wash, etc., emit, also can remain in the coating and slowly emit.Some other ornament materials beyond the wood-based plate has also used urea-formaldehyde resin adhesive during fabrication as wall paper, carpet etc., and considerable burst size of methanal is also arranged; Formaldehyde mainly is used as the dyeing assistant of fibre and is used to make resin finishing agent to improve wrinkle resistant, the shrinkproof result of goods in textile industry, and therefore, textiles such as clothes, bed clothes are Diazolidinyl Urea also; Cigarette also can produce formaldehyde when burning.
In a word, the source that the formaldehyde in the room air pollutes is a lot, and the formaldehyde pollution is very serious in China city, the newly-decorated household in rural area especially at present, generally exceeds the national standard several times.
Formaldehyde is the material than high toxicity, preferentially controls on the list formaldehyde at China's toxic chemical and is in second.Formaldehyde has spread effect to eye, mucous membrane and respiratory tract, can cause degradation under chronic respiratory disease, allergic rhinitis, the immunologic function, causes sleep disorder; Formaldehyde is considered to potential carcinogen, may be the inducement of rhinocarcinoma, throat cancer, cutaneum carcinoma.Therefore, eliminate formaldehyde and pollute, purifying the air of a room more and more causes people's attention.At present, people eliminate the main method that formaldehyde in indoor air pollutes and are to use formaldehyde eliminating agent.But, product sold and patented technology product exist the problem of price height, weak effect in the market, and formaldehyde amount of cancellation within a certain period of time is limited, and the persistence of effect is poor, usually the term of validity has only several days time, also has the defective of secondary pollution in addition.For example, publication number is that therefore disclosed formaldehyde eliminating agent costs an arm and a leg owing to used hydrazide kind compound in the patent application document of CN1404891A; Publication number is to disclose a kind of formaldehyde eliminating agent in the application for a patent for invention document of CN1526470A, and its effect neither be very desirable, and the formaldehyde elimination factor has only 76%; Though some formaldehyde eliminating agents of Xiao Shouing are higher at its formaldehyde elimination factor of use initial stage in the market, ubiquity the problem of effect persistence difference.
Summary of the invention
The objective of the invention is problem at the prior art existence, a kind of formaldehyde elimination factor height, effect is lasting and preparation cost is low formaldehyde eliminating agent and preparation method thereof are provided, so as effectively in the decontamination chamber airborne formaldehyde pollute and reduce burst size of methanal in wood-based plate and the article of furniture.
For achieving the above object, the present invention by the following technical solutions.
Formaldehyde eliminating agent of the present invention is made up of following materials of weight proportions:
Inorganic decentralized medium 500-650 part; Acid compounds: 20-160 part; Polyamine compounds or amino macromolecular compound: 100-400 part; Salt compounds: 10-80 part; Super absorbent resin: 0.01-0.5 part; Acetate acetyl triethyl: 0.1-5 part
Be preferably following weight proportion especially:
Inorganic decentralized medium 550-620 part; Acid compounds: 80-120 part; Polyamine compounds or amino macromolecular compound: 200-300 part; Salt compounds: 30-60 part; Super absorbent resin: 0.05-0.3 part; Acetate acetyl triethyl: 0.5-3 part.
Particularly, inorganic decentralized medium is a water, and preferred distilled water or deionized water also can be well water.
Particularly, acid compounds can be inorganic acid or organic acid, is selected from sulfuric acid, hydrochloric acid, phosphoric acid, formic acid, acetate, citric acid and the gallic acid one or more.
Particularly, the polyamine compounds is selected from one or more in urea, melamine, the dicyandiamide; Amino macromolecular compound is selected from one or both in polyacrylamide and the polyacrylic acid-acrylamide.
Particularly, salt compounds is selected from one or more in ammonium chloride, ammonium phosphate, ammonium sulfate, ammonium acetate, sodium chloride, the potassium chloride.
Particularly, super absorbent resin can be the blend of natural polymer super absorbent resin or synthetic high polymer super absorbent resin or natural polymer super absorbent resin and synthetic high polymer super absorbent resin, and the natural polymer super absorbent resin can be selected from starch graft polyacrylate, starch grafted polyacrylamide, starch-acrylic acid-acrylamide graft copolymer, starch carboxymethylation reaction thing, starch-grafted polyacrylonitrile hydrolyzed thing, cellulose graft polyacrylate, cellulose graft polyacrylamide, carboxymethyl cellulose; The synthetic high polymer super absorbent resin can be selected from polyacrylate, polyacrylamide, acrylic acid-acrylamide copolymer, polyvinyl alcohol, polyvinyl alcohol-acrylic acid graft copolymer one or more.
The manufacture method of formaldehyde eliminating agent of the present invention may further comprise the steps:
1, carrying out raw material by following weight proportion gets the raw materials ready:
Inorganic decentralized medium: 500-650 part
Acid compounds 20-160 part
Polyamine compounds or amino macromolecular compound 100-400 part
Salt compounds 10-80 part
Super absorbent resin: 0.01-0.5 part
Acetate acetyl triethyl 0.1-5 part
2, half of the whole and inorganic decentralized medium of the acid compounds in the above-mentioned raw materials, polyamine compounds or amino macromolecular compound added in reactor, start stirring, be heated to 95 ℃, react to pH=6.0-6.5; Add remaining water and salt compounds, super absorbent resin, be incubated 30-40 minute down at 45-55 ℃;
3, be cooled to below 30 ℃, add the acetate acetyl triethyl, stirred 5-10 minute, discharging, filtration, packing promptly become this product.
The advantage of product of the present invention is:
1, the decentralized medium of the present invention's use is inorganic decentralized medium rather than organic solvent, the product that obtains by synthetic reaction and be innocuous substance with product behind the formolite reaction, final products are colourless, clear aqueous liquid, light fragrant is arranged, can not produce secondary pollution after therefore using.
2, product of the present invention has the effect of quick elimination formaldehyde, eliminate effective, after using 30 minutes on core-board and the article of furniture, the formaldehyde elimination factor just can reach more than 98% and 89% respectively, and persistence is good, the term of validity reached more than 30 days, and the formaldehyde elimination factor still can maintain respectively more than 97% and 89% after using 30 days.
3, the cost of material of product of the present invention is low, is 1-5 unit/kg, be the 0.1-1% of commercially available formaldehyde eliminating agent price only, and production technology is simple.
The specific embodiment
Embodiment 1
1) carrying out raw material by following weight portion proportioning gets the raw materials ready:
Water 569kg
Phosphoric acid (85%) 80kg
Citric acid 20kg
Urea 240kg
Melamine 30kg
Ammonium chloride 20kg
Ammonium sulfate 20kg
Sodium chloride 20kg
Starch grafted polyacrylamide 0.4kg
Acetate acetyl triethyl 0.6kg
2) half of the whole and water of the phosphoric acid in the above-mentioned raw materials, citric acid, urea, melamine added in reactor, be heated to 95 ℃, react to pH=6.0-6.5; Add remaining water and ammonium chloride, sulfuric acid amine, sodium chloride and starch grafted polyacrylamide, be incubated 30-40 minute down at 45-55 ℃.
3) be cooled to 30 ℃, add the acetate acetyl triethyl, stirred 5-10 minute, discharging, filter, be packaged as product of the present invention.
The technical indicator of product:
Outward appearance: colourless or light yellow transparent liquid
Solids content (%): 35-45%
PH value: 5.5-7.0
Time limit (year) is arranged: 2
Embodiment 2
1) carrying out raw material by following weight portion proportioning gets the raw materials ready:
Water 500kg
Sulfuric acid (95%) 3kg
Gallic acid (92%) 18kg
Urea 150kg
Dicyandiamide 20kg
Ammonium chloride 5kg
Ammonium phosphate 5kg
Potassium chloride 2kg
Carboxymethyl cellulose 0.1kg
Acetate acetyl triethyl 0.1kg
2) half of the whole and water of the sulfuric acid in the above-mentioned raw materials, gallic acid, urea, dicyandiamide added in reactor, be heated to 95 ℃, react to pH=6.0-6.5; Add remaining water and ammonium chloride, phosphamide, potassium chloride and carboxymethyl cellulose, be incubated 30-40 minute down at 45-55 ℃.
3) be cooled to below 30 ℃, add the acetate acetyl triethyl, stirred 5-10 minute, discharging, filter, be packaged as product of the present invention.
The technical indicator of product:
Outward appearance: colourless or light yellow transparent liquid
Solids content (%): 25-35%
PH value: 6.0-7.0
Time limit (year) is arranged: 2
Embodiment 3
1) carrying out raw material by following weight portion proportioning gets the raw materials ready:
Water 650kg
Acetate (95%) 150kg
Formic acid (85%) 10kg
Urea 350kg
Dicyandiamide 30kg
Ammonium sulfate 40kg
Ammonium phosphate 20kg
Potassium chloride 10kg
Polyacrylamide 0.3kg
Acetate acetyl triethyl 2.2kg
2) half of the whole and water of the acetate in the above-mentioned raw materials, formic acid, urea, dicyandiamide added in reactor, be heated to 95 ℃, react to pH=6.0-6.5; Add remaining water and ammonium sulfate, phosphamide, potassium chloride and polyacrylamide, be incubated 30-40 minute down at 45-55 ℃.
3) be cooled to below 30 ℃, add the acetate acetyl triethyl, stirred 5-10 minute, discharging, filter, be packaged as product of the present invention.
The technical indicator of product:
Outward appearance: colourless or light yellow transparent liquid
Solids content (%): 45-55%
PH value: 6.0-7.0
The term of validity (year): 2
The cost of material price of the formaldehyde eliminating agent of the method preparation of employing embodiment 1,2,3 is respectively: 1-3 unit/kg, 1-2 unit/kg, 3-5 unit/kg.
Comparative example
Select for use commercially available big deer board formaldehyde catching agent to compare, the price of its band packing is 110 yuan/kg.
Experimental example 1
The formaldehyde eliminating agent of the formaldehyde eliminating agent of the embodiment of the invention 1,2,3 and comparative example is coated the surface of core-board respectively, detect with spraying comparative example formaldehyde eliminating agent and the contrast test specimen that do not spray formaldehyde eliminating agent then, adopting detection method is the drier method, detection is finished by Chinese interior decoration association green household environment technical work station environmental analysis test laboratory, and testing result is as shown in table 1.
The formaldehyde of table 1 formaldehyde eliminating agent on core-board is eliminated effect
As can be seen from Table 1, formaldehyde eliminating agent of the present invention is very high to the elimination factor of the formaldehyde that core-board discharges, after using 24 hours, can reach more than 98%, and compare with existing product on the market, it is more lasting that its formaldehyde is eliminated effect, and after using 30 days, formaldehyde elimination factor of the present invention still maintains more than 97%, and the formaldehyde of existing product is eliminated the non-constant of effect, and using after 30 days its formaldehyde elimination factor to drop to only is 11.3%.
Experimental example 2
The formaldehyde eliminating agent of the embodiment of the invention 1,2 and 3 is sprayed at respectively in the cupboard of newly purchaseing state's tool, and quantity for spray is 20g/m
2, with the spraying comparative example formaldehyde eliminating agent and not the contrast test specimen of spray treatment compare experiment.Use Britain F-400 methylene oxide detecting instrument to detect, testing result is as shown in table 2.
The formaldehyde of table 2 formaldehyde eliminating agent on furniture is eliminated effect
As can be seen from Table 2, formaldehyde eliminating agent of the present invention is very high to the elimination factor of the formaldehyde that office furniture discharges, and can reach more than 89% after using 24 hours.And compare with existing product on the market, it is more lasting that its formaldehyde is eliminated effect, and after using 30 days, formaldehyde elimination factor of the present invention still maintains more than 89%, and the formaldehyde of existing product is eliminated the remarkable variation of effect, the formaldehyde elimination factor has only 17%.
Claims (8)
1. formaldehyde eliminating agent is characterized in that being made up of following materials of weight proportions:
Water 500-650 part
Acid compounds 20-160 part
Polyamine compounds or amino macromolecular compound 100-400 part
Salt compounds 10-80 part
Super absorbent resin: 0.01-0.5 part
Acetate acetyl triethyl 0.1-5 part
Super absorbent resin is the blend of natural polymer super absorbent resin or synthetic high polymer super absorbent resin or natural polymer super absorbent resin and synthetic high polymer super absorbent resin, wherein, the natural polymer super absorbent resin is selected from one or more in starch graft polyacrylate, starch grafted polyacrylamide, starch-acrylic acid-acrylamide graft copolymer, starch carboxymethylation reaction thing, starch-grafted polyacrylonitrile hydrolyzed thing, cellulose graft polyacrylate, cellulose graft polyacrylamide, the carboxymethyl cellulose; The synthetic high polymer super absorbent resin is selected from one or more in polyacrylate, polyacrylamide, acrylic acid-acrylamide copolymer, polyvinyl alcohol, the polyvinyl alcohol-acrylic acid graft copolymer.
2. formaldehyde eliminating agent as claimed in claim 1 is characterized in that the weight proportion of described raw material is:
Water 550-620 part
Acid compounds 80-120 part
Polyamine compounds or amino macromolecular compound 200-300 part
Salt compounds 30-60 part
Super absorbent resin: 0.05-0.3 part
Acetate acetyl triethyl 0.5-3 part.
3. formaldehyde eliminating agent as claimed in claim 1 or 2 is characterized in that: a kind of in distilled water, deionized water and well water of described wet concentration.
4. formaldehyde eliminating agent as claimed in claim 1 or 2 is characterized in that: described acid compounds is selected from one or more in sulfuric acid, hydrochloric acid, phosphoric acid, formic acid, acetate, citric acid and the gallic acid.
5. formaldehyde eliminating agent as claimed in claim 1 or 2, it is characterized in that: described polyamine compounds is selected from one or more in urea, melamine, the dicyandiamide, and described amino macromolecular compound is selected from one or both in polyacrylamide and the polyacrylic acid-acrylamide.
6. formaldehyde eliminating agent as claimed in claim 1 or 2 is characterized in that: described salt compounds is selected from one or more in ammonium chloride, ammonium phosphate, ammonium sulfate, ammonium acetate, sodium chloride, the potassium chloride.
7. the manufacture method of a formaldehyde eliminating agent may further comprise the steps:
1) carrying out raw material by following weight proportion gets the raw materials ready:
Water 500-650 part
Acid compounds 20-160 part
Polyamine compounds or amino macromolecular compound 100-400 part
Salt compounds 10-80 part
Super absorbent resin: 0.01-0.5 part
Acetate acetyl triethyl 0.1-5 part;
2) half of the whole and water of the acid compounds in the above-mentioned raw materials and polyamine compounds or amino macromolecular compound added in reactor, start stirring, be heated to 95 ℃, react to pH=6.0-6.5; Add remaining water and salt compounds, super absorbent resin, be incubated 30 minutes down at 45-55 ℃;
3) be cooled to below 30 ℃, add the acetate acetyl triethyl, stirred 5-10 minute, discharging after filtration, is made this formaldehyde eliminating agent.
8. the preparation method of formaldehyde eliminating agent as claimed in claim 7 is characterized in that described raw material weight proportioning is:
Water 550-620 part
Acid compounds 80-120 part
Polyamine compounds or amino macromolecular compound 200-300 part
Salt compounds 30-60 part
Super absorbent resin: 0.05-0.3 part
Acetate acetyl triethyl 0.5-3 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100569357A CN100384601C (en) | 2006-03-07 | 2006-03-07 | For maldehyde eliminating agent and prepn. process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100569357A CN100384601C (en) | 2006-03-07 | 2006-03-07 | For maldehyde eliminating agent and prepn. process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1833837A CN1833837A (en) | 2006-09-20 |
| CN100384601C true CN100384601C (en) | 2008-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100569357A Expired - Fee Related CN100384601C (en) | 2006-03-07 | 2006-03-07 | For maldehyde eliminating agent and prepn. process thereof |
Country Status (1)
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| CN (1) | CN100384601C (en) |
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| CN101538452B (en) * | 2008-03-19 | 2013-01-02 | 王晶 | Formaldehyde reducing agent for finished product urea-formaldehyde glue and application method thereof |
| CN101486887B (en) * | 2008-07-08 | 2013-11-06 | 袁晓东 | Formaldehyde scavenger for urea-formaldehyde glue and technique for producing the same |
| CN101537307B (en) * | 2009-03-26 | 2012-11-28 | 梁宗贵 | Methanol remover and preparation method thereof |
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| MY158695A (en) * | 2011-10-05 | 2016-11-15 | Malaysian Palm Oil Board | Method for producing fibreboards utilizing palm biomass |
| CN103351959A (en) * | 2013-06-28 | 2013-10-16 | 中北大学 | Laundry detergent additive capable of removing formaldehyde |
| CN104645800B (en) * | 2013-11-25 | 2016-08-17 | 北京市理化分析测试中心 | formaldehyde catching agent and preparation method thereof |
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| CN104987846A (en) * | 2015-06-26 | 2015-10-21 | 沈阳化工大学 | Formaldehyde elimination agent and preparation method thereof |
| CN105435412A (en) * | 2015-12-10 | 2016-03-30 | 刘智懿 | Hydrogel for rapidly removing aldehydes and ketones compounds and preparing method of hydrogel |
| CN105727495B (en) * | 2016-01-21 | 2018-10-09 | 东莞市中纺化工有限公司 | A kind of formaldehyde catching agent and preparation method thereof and the application in removing formaldehyde |
| CN105749479A (en) * | 2016-03-02 | 2016-07-13 | 许五妮 | Formaldehyde removing preparation used in new houses |
| CN109928704B (en) * | 2017-12-15 | 2020-07-24 | 北新集团建材股份有限公司 | Formaldehyde-purifying gypsum board and preparation method thereof |
| CN109316939A (en) * | 2018-11-20 | 2019-02-12 | 中国科学院地球环境研究所 | A kind of indoor formaldehyde absorbent and preparation method thereof |
| CN110052144A (en) * | 2019-04-30 | 2019-07-26 | 江苏迅驰新能源科技股份有限公司 | A kind of formaldehyde removing spray and preparation method thereof |
| CN110787624A (en) * | 2019-11-04 | 2020-02-14 | 河北夙菁科技有限公司 | Free formaldehyde catching agent and preparation method thereof |
| CN111729488A (en) * | 2020-06-20 | 2020-10-02 | 苏州赛恩环境科技有限公司 | Micromolecular amino formaldehyde scavenger and preparation method thereof |
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