CN101020794B - Green water-base lacquer without formaldehyde and its preparation method - Google Patents
Green water-base lacquer without formaldehyde and its preparation method Download PDFInfo
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- CN101020794B CN101020794B CN2007100872931A CN200710087293A CN101020794B CN 101020794 B CN101020794 B CN 101020794B CN 2007100872931 A CN2007100872931 A CN 2007100872931A CN 200710087293 A CN200710087293 A CN 200710087293A CN 101020794 B CN101020794 B CN 101020794B
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Abstract
The present invention relates to formaldehyde eliminating green water-base lacquer and its preparation process. The formaldehyde eliminating green water-base lacquer as one kind of chemical paint composition is used for surface treatment of wooden furniture. It consists of polymer emulsion, filming assistant, foam inhibitor, wetting and leveling agent, thickener, preservative, pure water and other ingredients. Owing to its formaldehyde eliminating ingredients, the formaldehyde eliminating green water-base lacquer is one kind of excellent water-base lacquer with excellent formaldehyde eliminating effect.
Description
Technical field
The present invention relates to environment-friendly type aqueous lacquer that removes in formaldehyde and preparation method thereof, is a kind of chemical coating compsn, be a kind ofly be used to fit up, coating that wood product surfaces such as various furniture and office furniture are handled, be a kind of environment-friendly type aqueous wood lacquer that can remove formaldehyde.
Background technology
At present, in house decoration, because the exceeding standard of objectionable impurities in house ornamentation pollution that various finishings cause with objectionable impuritiess such as formaldehyde that material brought, benzene series thing, TVOC and the room air.Seriously disturbed daily life.This gas that contains formaldehyde of the long-time absorption of human body can give rise to diseases, and serious also can crisis arrive people's life security.Therefore to carry out the improvement of room air pollution to room behind the finishing and the new furniture of buying, and eliminate the harmful gas pollution that new furniture brought.In the scope of national regulation, people are lived in the environment of a health with the content that guarantees indoor harmful gas.
There are two sources in room behind the finishing basically with the new room air pollution of buying that furniture produced: one is the topcoating of finishing or furniture; Usually all use the solvent of organic solvent as paint like common paint, these solvents contain deleterious pollution substances such as benzene series thing, TVOC.Another is the tackiness agent of bonding various materials.Adopted non-polluting coatings to solve now for previous source, for example: pollution-free wallcovering, wood product surface is handled water-miscible paint that uses or the like.Wherein some coating has reached pollution-free basically nontoxic degree.Like a application number is 200410075486.1, and the applying date is on December 14th, 2004, and denomination of invention is the Chinese invention patent with aqueous woodware paint of bactericidal air purification function.The furniture that coats with this water-miscible paint has been avoided the pollution of obnoxious flavoures such as benzene series thing that common paint brings and TVOC to room air, has good environmental friendly indoor effect.
For the pollutent in the tackiness agent, particularly formaldehyde, also there is not highly effective method to remove fully with regard to present state of the art.Can only make that formaldehyde etc. is poisonous through control objectionable impurities consumption and good process means, content of harmful and burst size reach minimum limit.Therefore, people are at finishing or when buying more new furniture, even if when selecting top quality product, also will eliminate the work of indoor harmful gas.The usual method of noxious air is to utilize formaldehyde eliminating agent in the decontamination chamber, comes decontamination chamber to contain the obnoxious flavour of formaldehyde material.Like a application number is 01133329, and the applying date is October 23 calendar year 2001, and denomination of invention is the Chinese invention patent of formaldehyde remover; It is by trolamine, Sodium Metabisulfite, EDTA Disodium, 2,3,4; 5, the aqueous solution that 6-penta hydroxy group acetaldehyde and zero(ppm) water are formed.The way of utilizing above-mentioned formaldehyde eliminating agent to eliminate formaldehyde is in indoor spraying, but owing to the release of formaldehyde in the indoor furniture is a process slowly, and spraying is the process of a short period of time, thereby need constantly spray and just can effectively eliminate.The aforesaid way troublesome poeration, effect is unsatisfactory.
Common water-miscible paint spreads upon the effect that there is certain closed methanal on the woodenware surface, but the effect of closed methanal is very limited.Wood-based plate to use a large amount of stickers is example, and it is the E0 level that American-European artificial board formaldehyde burst size to indoor use requires, and the formaldehyde amount that promptly every wood-based plate discharged is below 0.5 mg/litre, and Japan then requires to reach below 0.3 mg/litre.Attention: said here is the formaldehyde that utensil discharged i.e. " burst size of methanal " that contains formaldehyde; Unit is: mg/litre; With airborne formaldehyde content be two notions, airborne formaldehyde is the amount that contains formaldehyde in the unit air, unit is: milligram/cubic meter.It is generally acknowledged when formaldehyde amount 0.3 mg/litre that only reaches every wood-based plate and discharged is following, in the human settlement, could unrestrictedly use artificial board.But the present peak demand of the artificial board formaldehyde burst size of China is the E1 level, formaldehyde amount 1.5 mg/litre that promptly every wood-based plate discharged.Be scaled saying intuitively: 100M
2Wood-based plate such in the finishing in room can only use 12 at most, surpasses this and limits the quantity of, and the burst size of formaldehyde will exceed standard.But according to the statistics of Chinese architecture decoration industry, the average usage quantity of wood-based plate of single decorator is all more than 30 in the house decoration later in 1998.With regard to wood-based plate be to use situation, under situation about having no except that the formaldehyde measure, the release index of formaldehyde exceeds standard greatly.The use of water-miscible paint changes this situation to some extent.According to experiment test, behind the water-miscible paint brushing parcel wood-based plate, can reach the effect of the burst size of methanal of reduction by 20%.Therefore, environment-friendly type aqueous lacquer uses on the wood-based plate of E0 level, can guarantee that basically formaldehyde in indoor air concentration reaches safety standards.As long as the burst size of hazardous and noxious substances such as formaldehyde that finishing material discharged, benzene series thing, TVOC reaches environmental requirement, use behind the finishing of environment-friendly water-based lacquer or after having bought new furniture, environmental friendly indoor is guaranteed.Yet most finishing materials do not reach real environmental requirement, and particularly most artificial boards of market sale do not reach the E0 level; The sealing process of environment-friendly type aqueous lacquer is very limited in this case; Still have a large amount of formaldehyde to be discharged in the air, must look for another way, solve.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can remove environment-friendly type aqueous lacquer of formaldehyde and preparation method thereof, in the environment-friendly type aqueous lacquer of nontoxic pollution-free, add formaldehyde eliminating agent.The described nontoxic pollution-free of environment-friendly type aqueous lacquer that removes formaldehyde own spreads upon the woodenware surface of containing a large amount of stickers, and the woodenware toxic substances is enclosed in wherein.Containing when the formaldehyde material discharges through coating in the woodenware can be absorbed except that the formaldehyde material in the water-miscible paint in a large number, eliminated poisonous, objectionable impurities.Through discharge removing the formaldehyde material slowly, the toxic and harmfuls such as formaldehyde that this coating can also interior other objects of absorption chamber discharges.The described environment-friendly type aqueous lacquer that removes formaldehyde is that a kind of uses is simple to operate, can eliminate the formaldehyde toxic gas and can avoid the pollution of obnoxious flavoures such as benzene series thing that common paint brings and TVOC to room air again, be coat effect good except that the formaldehyde water-miscible paint.
The present invention is achieved in that first scheme of the environment-friendly type aqueous lacquer that removes formaldehyde, comprises following component: polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion, amino-complex, ammonia silver solution, intermediate oxide, pure water.
Said polymer emulsion is aqueous acrylic emulsion or aqueous polyurethane emulsion, and said amino-complex is that urea is plain, and said amphoteric substance is an aluminium sesquioxide, and said ammonia silver solution is Ag (NH
3)
2+ OH
-Solution.
The ratio of weight and number of first each component of scheme is:
Polymer emulsion 57.5～64.5
Film coalescence aid 3.85～7.6
Suds suppressor and skimmer 0.14～0.35
Wetting advection agent 0.14～0.35
Auxiliary rheological agents 0.21～0.35
Thickening material 0.07～0.14
Sanitas 0.07～0.14
Wax emulsion 2.8～8
Amino-complex 0.1～5.5
Ammonia silver solution 0.1～14.5
Intermediate oxide 0.1～3.5
Pure water 6.0～18.0.
Wherein urea element, aluminium sesquioxide, ammonia silver solution weight portion rate are preferably:
Urea plain 2.5～5.5
Aluminium sesquioxide 2.2～3.5
Ammonia silver solution 12.5～14.5.
Remove the environment-friendly type aqueous lacquer alternative plan of formaldehyde, comprise following component: polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion, nano titanium oxide, chitin, pure water.
The ratio of weight and number of its each component is:
Polymer emulsion 57.5～64.5
Film coalescence aid 3.85～7.6
Suds suppressor and skimmer 0.14～0.35
Wetting advection agent 0.14～0.35
Auxiliary rheological agents 0.21～0.35
Thickening material 0.07～0.14
Sanitas 0.07～0.14
Wax emulsion 2.8～8
Nano titanium oxide 0.5～2
Chitin 0.05～0.25
Pure water 6.0～18.0.
Remove the environment-friendly type aqueous lacquer third party case of formaldehyde, comprise following component: polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion, intermediate oxide, nano titanium oxide, chitin, pure water.
The ratio of weight and number of its each component is:
Polymer emulsion 57.5～64.5
Film coalescence aid 3.85～7.6
Suds suppressor and skimmer 0.14～0.35
Wetting advection agent 0.14～0.35
Auxiliary rheological agents 0.21～0.35
Thickening material 0.07～0.14
Sanitas 0.07～0.14
Wax emulsion 2.8～8
Intermediate oxide 0.1～3.5
Nano titanium oxide 0.1～3
Chitin 0.01～0.35
Pure water 6.0～18.0.
Wherein the ratio of weight and number of intermediate oxide, nano titanium oxide, chitin is preferably:
Intermediate oxide 2.2～2.7
Nano titanium oxide 0.5～2
Chitin 0.1～0.18.
Like the said preparation method who removes environment-friendly type aqueous lacquer first scheme of formaldehyde, it is characterized in that described step:
1) accurate each component of weighing;
2) with film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, the premix of wax emulsion, process mixed solution;
3) aqueous acrylic emulsion is added the mixed solution that step 2 prepares under the 600rpm/min agitation condition;
4) amino-complex, ammonia silver solution, intermediate oxide, pure water are mixed, process the aqueous solution;
5) mixed solution with the preparation of the 3rd step drips the aqueous solution that the 4th step prepares under the 2000rpm/30min agitation condition;
6) drip sanitas behind the froth breaking at a slow speed, speed governing was stirred 10 minutes to 600rpm/ minute.
The positively effect that the present invention produced: the present invention becomes a kind of not only nontoxic but also can be except that the coating of formaldehyde with having added the material of removing formaldehyde in the common environment-friendly water-based lacquer.Common relatively water-miscible paint effect of the present invention is significantly, is that example contrast situation is following with the wood-based plate:
The effect analysis of common ring water-retentivity lacquer: E1 level artificial board formaldehyde burst size standard is 1.5 mg/litre; Brushing 3 times common ring water-retentivity lacquer back formaldehyde clearances reaches near 15%; If calculate by 15%; E1 level artificial board formaldehyde burst size is reduced to 1.275 mg/litre, does not reach 0.5 mg/litre of E0 level.Therefore can't guarantee to use back formaldehyde in indoor air concentration to be lower than the level of 0.1 milligram/cubic metre of safety standards.
Effect analysis of the present invention: the present invention spreads upon on the surface of E1 level wood-based plate, and the formaldehyde clearance can reach 75～80% (experimental technique, process and data are seen embodiment).After using product of the present invention to remove the formaldehyde water-miscible paint, E1 level artificial board formaldehyde burst size is reduced to 0.3 mg/litre, is lower than 0.5 mg/litre of E0 level, can guarantee that formaldehyde concentration in room air is lower than the level of 0.1 milligram/cubic metre of safety standards.
Therefore, the present invention is a kind of good environment-friendly water-based lacquer coating, can satisfy the requirement of indoor environment.
Below in conjunction with embodiment the present invention is described further.
Embodiment
Embodiment one:
Present embodiment comprises: polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion, amino-complex, ammonia silver solution, intermediate oxide, pure water.
Removing the formaldehyde water-miscible paint is following component to be formed (weight percent) be prepared from:
1. aqueous acrylic emulsion 60%
2. film coalescence aid 6.0%
3. suds suppressor and skimmer 0.15%
4. wetting advection agent 0.15%
5. auxiliary rheological agents 0.25%
6. thickening material 0.1%
7. sanitas 0.1%
8. the wax emulsion 5.5%
9. amino-complex 3.55%
10. ammonia silver solution 13.5%
11. intermediate oxide 2.7%
12. pure water 8.0%
Said polymer emulsion is aqueous acrylic emulsion or aqueous polyurethane emulsion.Said amino-complex is that urea is plain.Amphoteric substance is an Al 2 O.Ammonia silver solution is Ag (NH3) 2+OH-solution.
Present embodiment provides a kind of use simple to operate, can eliminate the formaldehyde toxic gas and can avoid the pollution of obnoxious flavoures such as benzene series thing that common paint brings and TVOC to room air again, and coat the effective formaldehyde water-miscible paint that removes.
The said prescription of present embodiment is made up of A, B two portions; A part mainly is that the various component with water-miscible paint is constituted, and includes: polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion etc.These preparations all are common chemicals, do not have any particular requirement, all can buy in market.B part mainly is that the various component with formaldehyde scavenger, benzene series thing scavenging agent, TVOC scavenging agent etc. is constituted.The component of formaldehyde scavenger has: amino-complex, ammonia silver solution, intermediate oxide and water etc.Wherein said amino-complex is that urea is plain.Amphoteric substance is an aluminium sesquioxide.Ammonia silver solution is Ag (NH3) 2+OH-solution.The preparation of B part is common chemicals equally, can on market, buy too.
Present embodiment has made full use of the characteristic of this two portions material; The formaldehyde scavenger composition that when coating furniture or finishing, infiltrates on the one hand in the sheet material has been eliminated the free formaldehyde in the sheet material; Solidified Resin adhesive and reduced the separation of formaldehyde, on the other hand because this water-miscible paint is the pollution that therefore can as common paint, not cause benzene series thing and TVOC with pure water as solvent.So just can reach the free formaldehyde that both can eliminate in the artificial board, can avoid the pollution of benzene series thing and TVOC again.Be the present environment-friendly water-based lacquer coating of a kind of comparatively ideal wood-based plate furniture etc.
The effect of ammonia silver solution is to eliminate sheet material and airborne free formaldehyde:
Aldehyde material can with holder human relations reagent react, as:
HCHO+Ag(NH
3)
2 +OH
-→HCOONH
4+Ag
After in soup, having added ammonia silver solution like this, just can effectively suppress and eliminate free formaldehyde, reach the effect that purifies air.
The advantage of present embodiment is:
Removing formaldehyde, brushing paint are once accomplished.Removed first spraying formaldehyde scavenger from, to be dried after the loaded down with trivial details operation of brushing paint again, saved man-hour simultaneously, reduced cost.
The single component lacquer does not need with modulation such as thinners, and this water-miscible paint itself does not have irritating smell, and is pollution-free, and the human consumer can use voluntarily, and method of use is simple.The human consumer just can carry out individual treated with furniture or finishing existing, not environmental protection like this, does not need professional treatment just can enjoy the environment protection health life.
The product that present embodiment is processed can be processed the product of various uses such as priming paint, finish paint, putty, both can reduce the burst size of methanal in the sheet material, but also can avoid benzene series thing and TVOC or the like the atmospheric pollution that obnoxious flavour brought.Can solve multiple indoor environmental protection hidden danger with a kind of product.
Economical rationality, easy to use, the scope of application is extensive, treatment effect is good.Formaldehyde scavenger and environment-friendly water-based lacquer unite two into one, and with the pure water dilution, greatly reduce the cost that the human consumer pursues the health environment-friendly life.Is more than 60%～80% through test to organic clearances such as plate surface benzene, TVOC, formaldehyde.Its testing method is following with the test effect:
Experimental technique: two of the wood-based plates of buying from market (seven lis of plates) of 25cm * 25cm are put into 20 liters encloses container respectively, measure the concentration of formaldehyde value in each encloses container with 4160 type methylene oxide detecting instruments after 24 hours, and write down this numerical value.Take out the wood-based plate finished product of brushing common ring water-retentivity lacquer and the said prescription of present embodiment respectively then, whenever brushed one time, brush altogether three times, put into encloses container again behind 24 hours finish-dryings at a distance from 1 hour.Measure the concentration of formaldehyde value in the encloses container with 4160 type methylene oxide detecting instruments again after airtight 24 hours, and write down this numerical value.
Detecting instrument: detecting instrument is U.S.'s import 4160 type methylene oxide detecting instruments that the national standard metering is assert, display density value numeral in the time of detection.The numerical value that 4160 type methylene oxide detecting instruments are measured and the deviation of laboratory chemical process detected value generally in 5%, the most very much not can surpass 25%.
Measure numerical standard: measured value is international standard value ppm, is suitable for China's standard, need be converted into milligram value (mg/m
3), be formaldehyde in indoor air content here.
The experiment test result:
The highest limit value of (notes) national regulation indoor formaldehyde concentration is 0.10mg/m
3, milligram with the reduction formula of ppm is: 1ppm=1.247mg/m
3
The formaldehyde clearance is after 24 hours: No. 1 experimental box
No. 2 experimental boxs
The comparative test result explanation: No. 1 proofing box is the sheet material and the sheet material comparing result of not smearing any coating that ortho-water property lacquer is smeared on the surface; What test is whether common ring water-retentivity lacquer has the effect except that formaldehyde; Finally, common ring water-retentivity lacquer also has certain formaldehyde effect of removing.This effect is the sealing effect of water-miscible paint, and this effect is directly proportional with the pass (film thickness) of brushing water-miscible paint.In this experiment, brushed 3 times.Its effect reaches 15% the level that connects.No. 2 proofing boxs are the sheet material and the sheet material comparing result of not smearing any coating of the surface finished product of smearing the said prescription of present embodiment.Can find out from the correlation data of 1, No. 2 proofing box; The effect of removing the formaldehyde water-miscible paint is much more obvious than the effect of common water-miscible paint, if deduct the sealing effect of 15% water-miscible paint, its effect of removing formaldehyde reaches 65%; General effect has reached more satisfactory degree near 80%.
The effect analysis of common ring water-retentivity lacquer: E1 level artificial board formaldehyde burst size standard is 1.5 mg/litre; Brushing 3 times common ring water-retentivity lacquer back formaldehyde clearances reaches near 15%; If calculate by 15%; E1 level artificial board formaldehyde burst size is reduced to 1.275 mg/litre, does not reach 0.5 mg/litre of E0 level.Therefore can't guarantee to use the back air formaldehyde concentration to be lower than the level of 0.1 milligram/cubic metre of safety standards.
Remove the effect analysis of formaldehyde water-miscible paint: if calculate by 80% formaldehyde clearance; After using product of the present invention to remove the formaldehyde water-miscible paint; E1 level artificial board formaldehyde burst size reduces by 0.3 mg/litre; Be lower than 0.5 mg/litre of E0 level, can guarantee to use formaldehyde concentration in air behind this wood-based plate to be lower than the level of 0.1 milligram/cubic metre of safety standards.
Therefore, we can say that the formaldehyde water-miscible paint that removes of product of the present invention is a kind of environment-friendly water-based completely wood lacquer coating, can satisfy the environment protecting that the human consumer pursues.
Embodiment two:
The environment-friendly type aqueous lacquer that removes formaldehyde of present embodiment comprises following component: polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion, nano titanium oxide, chitin, pure water.
Removing formaldehyde water-miscible paint solution is that following component (weight percent) is prepared from:
1. aqueous acrylic emulsion 64.5%
2.. film coalescence aid 7.6%
3.. suds suppressor and skimmer 0.35%
4. wetting advection agent 0.35%
5.. auxiliary rheological agents 0.35%
6.. thickening material 0.1%
7.. sanitas 0.1%
8.. wax emulsion 7%
9. nano titanium oxide 1.5%
10. chitin 0.15%
11. pure water 18.0%.
Present embodiment prescription and embodiment one difference are to use nano titanium oxide and chitin as the staple of removing formaldehyde and other oxidation organic pollutants.The photocatalysis mechanism of nano titanium oxide:
As the photon irradiation TiO of wavelength less than 387.5nm
2Behind the surface, the electronics that is in valence band will be excited to conduction band and get on, thereby on valence band and conduction band, produces highly active photohole (h respectively
+) and e
-(4～7):
TIO
2+h
v→h
++e
- (1)
Under high PH condition ,+OH is prone to pass through OH
-Direct Transfer is to photoactive TiO
2The surface, the prisoner gives birth to the hole and produces:
h
++OH
-→OH (2)
Under low PH condition ,+OH is prone to pass through OH
-With the O that is adsorbed
2Series (O
-, O
2 -, O
2 2-, O
3 -) combine, on the basis that forms, further generate:
e+O
2→O
2 - (3)
+O
2 -+H
+→HO
2 - (4)
2HO
2 +→O
2+H
2O
2 (5)
H
2O
2 ++O
2 -→OH+OH
-+O
2 (6)
H
2O
++O
2 -→H
2O
-+O
2 - (7)
H
2O
-+H
+→H
2O
+ (8)
The H that is produced in addition
+Also can directly be attracted to TiO
2The water molecules on surface is oxidized to+OH:
2HO
2+h
+→OH+H
3O
+(9)
Above-mentioned reaction produced process+OH, and ability oxidation and adjacent organic pollutant also can be diffused into oxidation organic pollutant in the liquid phase, and in addition, many organic pollutants also can be directly by the h+ oxidation.Nano titanium oxide can effectively be eliminated other volatile organic compounds, thereby realizes the purification to indoor toxic gas.
Embodiment three
The environment-friendly type aqueous lacquer that removes formaldehyde of present embodiment comprises following component: polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion, intermediate oxide, nano titanium oxide, chitin, pure water.Wherein intermediate oxide is an aluminium sesquioxide.
Removing formaldehyde water-miscible paint solution is that following component (weight percent) is prepared from:
1. aqueous acrylic emulsion 64.5%
2.. film coalescence aid 7.6%
3.. suds suppressor and skimmer 0.35%
4. wetting advection agent 0.35%
5.. auxiliary rheological agents 0.35%
6.. thickening material 0.1%
7.. sanitas 0.1%
8.. wax emulsion 7.0%
9. aluminium sesquioxide 2.50%
10. nano titanium oxide 1.5%
11. chitin 0.15%
12. pure water 15.5%
Present embodiment increases aluminium sesquioxide on the basis of embodiment two, as odor scavenging agents such as TVOC.
Present embodiment is respond well through tentative test, and its testing method is following with the test effect:
1. testing method:
With discharge benzene, TVOC, etc. the solution of objectionable impurities spray into respectively in the climate box of two airtight same volumes; Putting the sheet glass that the finished product that scribble the said prescription of present embodiment are smeared in one of them climate box; Then in the integral point time period, with benzene detector tube, TVOC detector tube, detect.Or detect with the portable benzene organic gas of U.S. home-made TLVFALCON, VOC organic gas PID monitor.
Concrete grammar is (is example with the benzene test) as follows:
Select (about 1 cubic metre of the similar airtight experimental box of two sizes; Inside is provided with ultraviolet source) A, B respectively spray into the benzene liquid of same amount; Control constant temp (23C ± 2), humidity (60%) mix formaldehyde in experimental box, let benzene fully volatilize through 30min and fill the air.Experimental box A is placed with 50 centimetres of sheet glass of 50 cm x of the finished product of the said prescription of surface spraying present embodiment; Control experiment case B does not spray product of the present invention and removes formaldehyde water-miscible paint solution.Each airtight breadboard air is respectively taken a sample 1 time with atmosphere sampling instrument in 8:00～20:00 period, each sampling time is 40min and uses the absorption liquid of on-the-spot unsampled blank absorption tube to carry out blank determination.According to GB/T11737-1989 " benzene,toluene,xylene health test method in the atmosphere of residential district " test benzene in air concentration.Or detect, and carry out record with the portable benzene organic gas of U.S. home-made TLV FALCON detector.
This is identical with phenyl for the detection method of TVOC, different only be that the different instruments with detection usefulness of solution of the obnoxious flavour that sprays into are different.The result is suc as formula shown in (1):
X＝(C1-C2)/C1×100％
Wherein: C2---remove the detection data of formaldehyde water-miscible paint solution Wiper plate with product of the present invention;
C1---product of the present invention of no use removes the detection data of formaldehyde water-miscible paint solution Wiper plate;
X---benzene, TVOC, etc. clearance;
2. test result:
| Test duration | Do not spray benzene content value mg/M in the sheet glass B case of soup 3 | Do not spray TVOC value mg/M in the sheet glass B case of soup 3 | Be placed with benzene content value mg/M in the sheet glass A case that sprays soup 3 | Be placed with TVOC value mg/M in the sheet glass A case that sprays soup 3 |
| Initial value 8 points | ?0.69 | ?2.25 | ?0.66 | ?2.25 |
| 19 points | ?0.60 | ?2.08 | ?0.15 | ?0.6 |
Benzene clearance=0.773 * 100%=77.3%; TVOC clearance=0.71 * 100%=71%.
Test explanation present embodiment also has the effect that absorbs removal to the airborne toxic and harmful in outside, and effect is fairly obvious.
Embodiment four:
The embodiment one said preparation method who removes the environment-friendly type aqueous lacquer of formaldehyde, employed preparation is:
Polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion, amino-complex, ammonia silver solution, intermediate oxide, pure water.
The step of preparation:
1. accurate each component of weighing;
2. with film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, the premix of wax emulsion, process mixed solution;
3. the mixed solution that aqueous acrylic emulsion is added step 2 preparation under the 600rpm/min agitation condition;
4. amino-complex, ammonia silver solution, intermediate oxide, pure water are mixed, dress up the aqueous solution;
5. the mixed solution of the 3rd step preparation is dripped the aqueous solution of the 4th step preparation under the 2000rpm/30min agitation condition;
6. drip sanitas behind the froth breaking at a slow speed, speed governing was stirred 10 minutes to 600rpm/ minute.
Can pack after stirring and process product.Only need during use to get final product with these article paint wood-based plate, furniture.
Claims (3)
1. remove the environment-friendly type aqueous lacquer of formaldehyde, comprise following component: polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion, amino-complex, silver ammino solution, intermediate oxide, pure water;
Said polymer emulsion is an aqueous acrylic emulsion, and said amino-complex is a urea, and said intermediate oxide is an aluminium sesquioxide, and said silver ammino solution is Ag (NH
3)
2 +OH
-Solution;
The described environment-friendly type aqueous lacquer that removes formaldehyde, the ratio of weight and number of its each component is:
Polymer emulsion 57.5～64.5
Film coalescence aid 3.85～7.6
Suds suppressor and skimmer 0.14～0.35
Wetting advection agent 0.14～0.35
Auxiliary rheological agents 0.21～0.35
Thickening material 0.07～0.14
Sanitas 0.07～0.14
Wax emulsion 2.8～8
Amino-complex 2.5～5.5
Silver ammino solution 12.5～14.5
Intermediate oxide 2.2～3.5
Pure water 6.0～18.0.
2. the preparation method who removes the environment-friendly type aqueous lacquer of formaldehyde as claimed in claim 1 is characterized in that described step:
1) accurate each component of weighing;
2) with film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, the premix of wax emulsion, process mixed solution;
3) aqueous acrylic emulsion is added the mixed solution that step 2 prepares under the 600rpm/min agitation condition;
4) amino-complex, silver ammino solution, intermediate oxide, pure water are mixed, process the aqueous solution;
5) mixed solution with the preparation of the 3rd step drips the aqueous solution that the 4th step prepares under the 2000rpm/30min agitation condition;
6) drip sanitas behind the froth breaking at a slow speed, speed governing was stirred 10 minutes to 600rpm/ minute.
3. remove the environment-friendly type aqueous lacquer of formaldehyde, comprise following component: polymer emulsion, film coalescence aid, suds suppressor and skimmer, wetting advection agent, auxiliary rheological agents, thickening material, sanitas, wax emulsion, amino-complex, silver ammino solution, intermediate oxide, pure water;
Said polymer emulsion is an aqueous polyurethane emulsion, and said amino-complex is a urea, and said intermediate oxide is an aluminium sesquioxide, and said silver ammino solution is Ag (NH
3)
2 +OH
-Solution;
The described environment-friendly type aqueous lacquer that removes formaldehyde, the ratio of weight and number of its each component is:
Polymer emulsion 57.5～64.5
Film coalescence aid 3.85～7.6
Suds suppressor and skimmer 0.14～0.35
Wetting advection agent 0.14～0.35
Auxiliary rheological agents 0.21～0.35
Thickening material 0.07～0.14
Sanitas 0.07～0.14
Wax emulsion 2.8～8
Amino-complex 2.5～5.5
Silver ammino solution 12.5～14.5
Intermediate oxide 2.2～3.5
Pure water 6.0～18.0.
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| CN2007100872931A CN101020794B (en) | 2007-03-23 | 2007-03-23 | Green water-base lacquer without formaldehyde and its preparation method |
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| CN2007100872931A CN101020794B (en) | 2007-03-23 | 2007-03-23 | Green water-base lacquer without formaldehyde and its preparation method |
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| CN101020794B true CN101020794B (en) | 2012-05-30 |
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