CN102533092A - Polyurethane coating film-forming material, polyurethane coating and application thereof - Google Patents
Polyurethane coating film-forming material, polyurethane coating and application thereof Download PDFInfo
- Publication number
- CN102533092A CN102533092A CN201110007852XA CN201110007852A CN102533092A CN 102533092 A CN102533092 A CN 102533092A CN 201110007852X A CN201110007852X A CN 201110007852XA CN 201110007852 A CN201110007852 A CN 201110007852A CN 102533092 A CN102533092 A CN 102533092A
- Authority
- CN
- China
- Prior art keywords
- polyurethane coating
- polyurethane
- polymethylene polyphenylisocyanate
- coating film
- dispersions
- 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
- BRALSEDIHYSYLG-CSKARUKUSA-N CCC(C(C1)=C(C)N=C(CI)/C1=C(\C)/O)=O Chemical compound CCC(C(C1)=C(C)N=C(CI)/C1=C(\C)/O)=O BRALSEDIHYSYLG-CSKARUKUSA-N 0.000 description 1
Images
Landscapes
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a polyurethane coating film-forming material, a polyurethane coating and application thereof. The polyurethane coating film-forming material is a product formed by mixing reaction components containing the following components: first polyisocyanates and polyatomic alcohol mixtures or second polyisocyanates and polyatomic alcohol dispersion mixtures or polyurethane dispersion. By adopting the polyurethane coating prepared by the polyurethane coating film-forming material to serve as coating finish paint, release of methanal in acid cured coatings or base materials can be effectively reduced, environment protection is benefited, and health of constructors and users is protected.
Description
Technical field
The present invention relates to paint field, relate in particular to a kind of polyurethane coating film forming matter, polyurethane coating and application thereof.
Background technology
The raising of Along with people's health perception, the room air pollution problem is receiving increasing concern.Formaldehyde is one of major reason that causes room air pollution.Formaldehyde in the room air is mainly derived from two aspects.A kind of source is the formaldehyde that coating discharged that uses in the fitment process or furniture surface comprises.The acid cure coating that for example use in the fitment process or furniture surface comprises.Acid cure coating is because curing speed is fast, and excellent performance, therefore is applied in the wood furniture morely, and still, in use there is the problem of release formaldehyde in acid cure coating, and the coating after solidifying still can continue release formaldehyde during use.The tackiness agent of some Diazolidinyl Urea that uses in the base material (as the wood furniture that is applied) that another kind of source is a coating.
In the prior art, there is certain methods can be used to reduce the burst size of methanal in woodwork coating or the timber.For example, CN101020794A has disclosed a kind of environment-friendly type aqueous lacquer that removes formaldehyde, contain in the component of this water-miscible paint and the ammonia silver solution of formolite reaction and the amphoteric substance of adsorbable formaldehyde, thus the purpose that formaldehyde is removed in realization.Yet non-renewable behind the ammonia silver solution reaction in this water-miscible paint, the effect of removing formaldehyde is limited.In addition, the content of the amphoteric substance in this water-miscible paint is limited, thereby the adsorption effect of PARA FORMALDEHYDE PRILLS(91,95) is not lasting.
The present invention is devoted to provide a kind of coating or the polyurethane coating film forming matter of the burst size of methanal in the base material and polyurethane coating that is made by this polyurethane coating film forming matter that can reduce release formaldehydes such as acid cure coating.
Summary of the invention
One of the object of the invention is to provide a kind of polyurethane coating film forming matter.According to one embodiment of present invention, said polyurethane coating film forming matter is the product that comprises that the reacted constituent of following ingredients mixes:
The mixture of first POLYMETHYLENE POLYPHENYLISOCYANATE and polyvalent alcohol; Said first POLYMETHYLENE POLYPHENYLISOCYANATE can use general formula R (NCO) n to represent; Wherein R representes to contain the aliphatic alkyl of 2-18 carbon atom or contains the aryl of 6-15 carbon atom or contain 8-15 carbon atom aryl aliphatic hydrocarbyl; N=2-6, the free isocyanate monomer content of said first POLYMETHYLENE POLYPHENYLISOCYANATE are smaller or equal to 0.5wt.%, and the molecular weight of said polyvalent alcohol is 500-5000; Amount of solid content is 50-100wt.%, and hydroxy radical content is counted 1-10wt.% by the weight of polyvalent alcohol; Or
The mixture of second POLYMETHYLENE POLYPHENYLISOCYANATE and polyol dispersions; Said second POLYMETHYLENE POLYPHENYLISOCYANATE is the POLYMETHYLENE POLYPHENYLISOCYANATE of internal emulsification method hydrophilic modifying; The molecular weight of said polyol dispersions is more than or equal to 10; 000, amount of solid content is 25-60wt.%, and hydroxy radical content is counted 2-10wt.% by the weight of polyol dispersions; Or
Polyurethane dispersions, said polyurethane dispersions are the polyurethane dispersions of unsaturated fatty acids modification, and its molecular weight is more than or equal to 10,000, and amount of solid content is 20-60wt.%.
Preferably, the NCO content in said first POLYMETHYLENE POLYPHENYLISOCYANATE is counted 4-25wt.% by the weight of first POLYMETHYLENE POLYPHENYLISOCYANATE.
Preferably, said polyvalent alcohol is selected from following one or more: polyester polyol, polyether glycol, polycarbonate polyol, polyolefin polyhydric alcohol.
Preferably, in said first POLYMETHYLENE POLYPHENYLISOCYANATE in NCO group and the polyvalent alcohol mol ratio of OH group be 0.8: 1-1.7: 1.
Preferably, said internal emulsification method hydrophilically modified polyisocyanates is polyethers hydrophilically modified polyisocyanates and/or anionic hydrophilic modified polyisocyanate.
Preferably, the amount of solid content of said second POLYMETHYLENE POLYPHENYLISOCYANATE is 60-100wt.%, and NCO content is counted 10-25wt.% by the weight of second POLYMETHYLENE POLYPHENYLISOCYANATE.
Preferably, the median size of said polyol dispersions is smaller or equal to 300nm.
Preferably, said polyol dispersions can be selected from following one or more: polyacrylate polyol dispersion-s, polyester polyol dispersion-s, polyurethane polyol dispersion-s.
Preferably, in said second POLYMETHYLENE POLYPHENYLISOCYANATE in NCO group and the said polyol dispersions mol ratio of OH group be 1: 1-2: 1.
Two of the object of the invention is to provide a kind of polyurethane coating.According to one embodiment of present invention, said polyurethane coating comprises polyurethane coating film forming matter provided by the invention, auxiliary agent and solvent.
Preferably, said auxiliary agent can be selected from following one or more: skimmer, flow agent, base material wetting agent, film coalescence aid.
Preferably, said solvent can be selected from following one or more: said solvent can be selected from following one or more: benzene kind solvent, esters solvent, ketones solvent, alkane solvents.
Three of the object of the invention is to provide a kind of polyurethane coating.According to one embodiment of present invention, said polyurethane coating is for being coated with the product of polyurethane coating gained provided by the invention.
Four of the object of the invention is to provide a kind of polyurethane film-forming thing provided by the invention in the preparation polyurethane coating, to use.
Five of the object of the invention is to provide the application of a kind of polyurethane coating provided by the invention in polyurethane coating.
With polyurethane coating provided by the invention as finish paint; With the coating of release formaldehydes such as acid cure coating as priming paint; Can effectively reduce the external formaldehyde emission of primer coating, polyurethane coating provided by the present invention directly is coated on the base material, can effectively reduce the burst size of methanal of tackiness agent etc. in the base material; Help protecting environment, protection constructor and user's health.
Description of drawings
Accompanying drawing is exemplary and nonrestrictive.
Fig. 1 is the synoptic diagram of the burst size of methanal in 3,21,49 days according to one embodiment of present invention.
Fig. 2 is the synoptic diagram of the burst size of methanal in 189 days according to one embodiment of present invention.
Embodiment
The polyurethane coating film forming matter
Polyurethane coating film forming matter provided by the invention comprises following three kinds of different systems (following be called " first system ", " second system " and " three-system " respectively).Composition included in arbitrary system is mixed, all can obtain polyurethane coating film forming matter provided by the present invention.
The product that composition that can an arbitrary individual system is included obtains after mixing uses as polyurethane coating film forming matter provided by the present invention.
Said first system is the product that comprises that the reacted constituent of following ingredients mixes:
The mixture of first POLYMETHYLENE POLYPHENYLISOCYANATE and polyvalent alcohol; Said POLYMETHYLENE POLYPHENYLISOCYANATE can use general formula R (NCO) n to represent; Wherein R representes to contain the aliphatic alkyl of 2-18 carbon atom or contains the aryl of 6-15 carbon atom or contain 8-15 carbon atom aryl aliphatic hydrocarbyl; N=2-6, the free isocyanate monomer content of said first POLYMETHYLENE POLYPHENYLISOCYANATE are smaller or equal to 0.5%, and the molecular weight of said polyvalent alcohol is 500-5000; Amount of solid content is 50-100wt.%, and hydroxy radical content is counted 1-10wt.% by the weight of polyvalent alcohol.
Said first POLYMETHYLENE POLYPHENYLISOCYANATE can be selected from following one or more: the tripolymer of the affixture of isocyanate-monomer, the dimer of isocyanate-monomer, isocyanate-monomer, the polymer of isocyanate-monomer.
Said first POLYMETHYLENE POLYPHENYLISOCYANATE can be selected from following one or more: tolylene diisocyanate (TDI) affixture, tolylene diisocyanate (TDI) tripolymer, hexamethylene diisocyanate (HDI) dimer, hexamethylene diisocyanate (HDI) tripolymer, hexamethylene diisocyanate (HDI) biuret, isophorone diisocyanate (IPDI) tripolymer, diphenylmethanediisocyanate (MDI) polymer.
NCO content in said first POLYMETHYLENE POLYPHENYLISOCYANATE is counted 4-25wt.% by the weight of first POLYMETHYLENE POLYPHENYLISOCYANATE.
Said polyvalent alcohol can be selected from following one or more: polyester polyol, polyether glycol, polycarbonate polyol, polyolefin polyhydric alcohol.
The mol ratio of OH group in NCO group and the polyvalent alcohol in said first POLYMETHYLENE POLYPHENYLISOCYANATE, preferred but be not limited to 0.8: 1-1.7: 1.
Said second system is the product that comprises that the reacted constituent of following ingredients mixes:
The mixture of second POLYMETHYLENE POLYPHENYLISOCYANATE and polyol dispersions; Said second POLYMETHYLENE POLYPHENYLISOCYANATE is the POLYMETHYLENE POLYPHENYLISOCYANATE of internal emulsification method hydrophilic modifying; The molecular weight of said polyol dispersions is more than or equal to 10; 000, amount of solid content is 25-60wt.%, and hydroxy radical content is counted 2-10wt.% by the weight of polyol dispersions.
Preferably, said second POLYMETHYLENE POLYPHENYLISOCYANATE is the POLYMETHYLENE POLYPHENYLISOCYANATE of internal emulsification method polyethers or anionic hydrophilic modification, and is preferred but be not limited to phosphoric acid salt, vitriol or sulphonate hydrophilically modified polyisocyanates, preferred especially sulphonate hydrophilically modified polyisocyanates.
Said polyol dispersions can be selected from following one or more: polyacrylate polyol dispersion-s, polyester polyol dispersion-s, polyurethane polyol dispersion-s.
Said polyol dispersions, preferred but be not limited to the polyacrylate polyol dispersion-s, especially preferably by C
1-8(hydroxyl-functional) alkyl acrylate and/or C
2-8(hydroxyl-functional) alkyl methacrylate and the product of vinylbenzene or other olefinic type monomers copolymerization gained.
The mol ratio of OH group in NCO group and the said polyol dispersions in said second POLYMETHYLENE POLYPHENYLISOCYANATE, preferred but be not limited to 1: 1-2: 1.
Said three-system is the product that comprises that the reacted constituent of following ingredients mixes:
Polyurethane dispersions, said polyurethane dispersions are the polyurethane dispersions of unsaturated fatty acids modification, and its molecular weight is more than or equal to 10,000, and amount of solid content is 20-60wt.%.
Said polyurethane dispersions is unsaturated fatty acids modified aliphatic polyurethane dispersions.
Can add the 3rd POLYMETHYLENE POLYPHENYLISOCYANATE in the said polyurethane dispersions, said the 3rd POLYMETHYLENE POLYPHENYLISOCYANATE is the POLYMETHYLENE POLYPHENYLISOCYANATE of internal emulsification method hydrophilic modifying.Preferably, said the 3rd POLYMETHYLENE POLYPHENYLISOCYANATE is the POLYMETHYLENE POLYPHENYLISOCYANATE of internal emulsification method polyethers or anionic hydrophilic modification, preferably phosphate, vitriol or sulphonate hydrophilically modified polyisocyanates, preferred especially sulphonate hydrophilically modified polyisocyanates.
Polyurethane coating
Polyurethane coating provided by the present invention comprises polyurethane coating film forming matter provided by the invention, auxiliary agent and solvent.
Said auxiliary agent can be selected from following one or more: skimmer, flow agent, base material wetting agent, film coalescence aid.
Said skimmer, preferred but be not limited to broken steep polymkeric substance and polysiloxane solution.
Said flow agent, preferred but be not limited to polyether-modified methyl alkyl ZGK 5 interpolymer solution.
Said base material wetting agent, preferred but be not limited to polyether-modified YSR 3286 interpolymer.
Said film coalescence aid, preferred but be not limited to Ucar 35 ethers film coalescence aid or gylcol ether film coalescence aid; Said Ucar 35 ethers film coalescence aid, preferred but be not limited to propylene glycol monomethyl ether, Ucar 35 butyl ether, dipropylene glycol methyl ether, tripropylene glycol methyl ether, propylene glycol propyl ether; Said gylcol ether film coalescence aid, preferred but be not limited to butyl glycol ether, Diethylene Glycol butyl ether.
Said solvent, preferred but be not limited to following one or more: benzene kind solvent, esters solvent, ketones solvent, alkane solvents.Said benzene kind solvent, preferred but be not limited to toluene, YLENE; Said esters solvent, preferred but be not limited to N-BUTYL ACETATE; Said ketones solvent, preferred but be not limited to acetone, butanone; Said alkane solvents, preferred but be not limited to paraffin series alkanes mixture, naphthene series alkanes mixture.
When preparation polyurethane coating provided by the present invention; If select the mixture of first POLYMETHYLENE POLYPHENYLISOCYANATE and polyvalent alcohol for use is the polyurethane coating film forming matter; The consumption of then said first POLYMETHYLENE POLYPHENYLISOCYANATE and polyvalent alcohol is preferred but be not limited to 40-80wt.%; The consumption of said auxiliary agent is preferred but be not limited to 2-10wt.%, and the consumption of solvent is preferred but be not limited to 15-50wt.%, in the weight of said polyurethane coating by 100wt.%.
When preparation polyurethane coating provided by the present invention; If select the mixture of second POLYMETHYLENE POLYPHENYLISOCYANATE and polyol dispersions for use is the polyurethane coating film forming matter; The consumption of then said second POLYMETHYLENE POLYPHENYLISOCYANATE and polyol dispersions is preferred but be not limited to 70-95wt.%; The consumption of said auxiliary agent is preferred but be not limited to 2-20wt.%, and the consumption of solvent is preferred but be not limited to 0-10wt.%, in the weight of said polyurethane coating by 100wt.%.
When preparation polyurethane coating provided by the present invention; If select polyurethane dispersions for use is the polyurethane coating film forming matter; The consumption of then stating polyurethane dispersions is preferred but be not limited to 75-95wt.%; The consumption of said auxiliary agent is preferred but be not limited to 2-20wt.%, and the consumption of solvent is preferred but be not limited to 0-5wt.%, in the weight of said polyurethane coating by 100wt.%; Said the 3rd POLYMETHYLENE POLYPHENYLISOCYANATE that can also further add 0-15wt.% in the said polyurethane dispersions, in the weight of said polyurethane coating by 100wt.%.
Polyurethane coating
Polyurethane coating provided by the present invention is for being coated with the product of polyurethane coating gained provided by the invention.
Can polyurethane coating provided by the present invention be coated priming paint surface or substrate surface through coating methods such as spraying, brushing or roller coating, to make a polyurethane coating that is attached to priming paint surface or substrate surface.Said priming paint is coated on the base material.Said coating can be carried out at normal temperatures.
Said priming paint, preferred but be not limited to acid cure coating.
Said base material, preferred wood substrate.Said wood substrate, preferred but be not limited to pine, oak, medium density fibre board (MDF), kirch.
The preparation method of polyurethane coating
With polyurethane coating film forming matter provided by the invention, auxiliary agent and solvent, can obtain polyurethane coating of the present invention.
Can be in advance said polyvalent alcohol and selected solvent and auxiliary agent be mixed (manually stirring or mechanical stirring all can); Hermetically stored is subsequent use then; Before the preparation polyurethane coating; Said first POLYMETHYLENE POLYPHENYLISOCYANATE is mixed (manually stir or mechanical stirring all can) with the mixture of polyvalent alcohol, make the solvent-type double-component polyurethane coating, this polyurethane coating of coating promptly makes polyurethane coating on the base material that is coated with acid cure priming paint then.
Can in advance said polyol dispersions be placed high speed dispersor (SFJ-400; Shanghai Modern Environmental Engineering Technology Co., Ltd.) on; Add selected auxiliary agent down at high-speed stirring state (1000-3000rpm) and stir 15min; Hermetically stored is subsequent use then, the preparation polyurethane coating before, said second POLYMETHYLENE POLYPHENYLISOCYANATE is mixed with the mixture of polyol dispersions (manually the stirring or mechanical stirring all can); Make aqueous polyurethane coating with bi component, this polyurethane coating of coating promptly makes polyurethane coating on the base material that is coated with acid cure priming paint then.
Can polyurethane dispersions be placed high speed dispersor (SFJ-400; Shanghai Modern Environmental Engineering Technology Co., Ltd.) on; Add selected auxiliary agent down at high-speed stirring state (1000-3000rpm); Dispersed with stirring 15min promptly makes the water-based mono-component polyurethane coating, and this polyurethane coating of coating promptly makes polyurethane coating on the base material that is coated with acid cure priming paint then.
Embodiment
Disclosed specific embodiment of the present invention and method, its description is exemplary and nonrestrictive.
The raw material of mentioning in the context
Bayhydrol UH XP polyurethane dispersions, amount of solid content is 35wt.%, can be by Bayer
2593/1 material science and technology (China) ltd buys.
Bayhydrol UH XP polyurethane dispersions, amount of solid content is 37wt.%, can be by Bayer
2557 materials science and technology (China) ltd buys.
Bayhydrol A XP polyacrylate polyol dispersion-s, amount of solid content is 41
2651 wt.%, hydroxy radical content are 3wt.%, can be by Bayer Material Science
(China) ltd buys.
Bayhydur 305 HDI Quito isocyanic ester, amount of solid content is 100wt.%,
NCO content is 16.2wt.%, can by Bayer Material Science (in
State) ltd buys.
Bayhydur XP 2655HDI Quito isocyanic ester, amount of solid content is 100wt.%,
NCO content is 21.1wt.%, can by Bayer Material Science (in
State) ltd buys.
Desmophen 1300 polyester polyols, amount of solid content are 75wt.%, and hydroxy radical content does
BA 3.2wt.% can be by Bayer Material Science (China) ltd
Buy.
Desmodur IL 1351 TDI Quito isocyanic ester, amount of solid content is 51wt.%, NCO
Content is 8.0wt.%, can be had by Bayer Material Science (China)
Limit company buys.
Desmodur L 75TDI Quito isocyanic ester, amount of solid content is 75wt.%, NCO
Content is 13.3wt.%, can be had by Bayer Material Science (China)
Limit company buys.
MD-0025:V-acid cure coating can be buied by shellfish lattice Rome lacquer industry ltd
39(10∶1)
The selection of base material and pre-treatment
May select different base materials for use in the coating test event that the present invention relates to, for example, can select for use the coating material solidified plank of coated acid to test.
The preparation method of coating test sample
Said coating test sample can adopt the method for brushing, roller coating or spraying to make.According to the needs of actual engineering, the thickness setting of priming paint is 30 ± 5 μ m.When coating one-pass film-forming thickness can reach 30 μ m, once brushing, roller coating or spraying film forming; When coating one-pass film-forming thickness during less than 30 μ m, brushing several times, roller coating or spraying film forming are till priming paint thickness reaches 30 ± 5 μ m.
Embodiment and comparative example's test event explanation
The burst size of formaldehyde is to pass judgment on one of the most important index of the polyurethane coating quality good or not of low burst size of methanal in the certain hour, also is one of the most unapproachable technical indicator.
In an embodiment of the present invention, the test item that the burst size of formaldehyde in the certain hour is compared as embodiment and comparative example.Embodiment and comparative example's testing method and testing standard
Testing method
The present invention adopts the spectrophotometry of methyl ethyl diketone technology to measure the burst size of formaldehyde according to CNS GB 18580-2001.
The present invention comes the drawing standard curve according to the regulation of 4.12.6.3 among the CNS GB/T 17657-1999, and prepares methyl ethyl diketone solution and ammonium acetate solution according to the regulation of 4.12.5 among the CNS GB/T 17657-1999.The relation conefficient of gained typical curve should be guaranteed the accuracy of testing greater than 0.999.The relation conefficient of the typical curve of gained of the present invention is 0.9999, and the corresponding standard curve equation is: Y=2.2792X+0.0027, and X representes that Y representes burst size of methanal by the measured light absorption ratio of spectrophotometer in this equation, unit is mg/L.
The committed step of this method is the chemical reaction of formaldehyde, and reaction equation is following:
The formaldehyde that the present invention selects for use vacuum drier to collect in the plank to be emitted as container; The crystallizing dish that fills zero(ppm) water is placed in bottom at moisture eliminator; On the support of crystallizing dish upper fixed, place the sample plank; Plank discharges formaldehyde and is distilled the water absorption as formaldehyde solution, and the solubleness of formaldehyde in water is very high, can reach 85%.This formaldehyde solution and methyl ethyl diketone react in the presence of ammonium acetate, form formaldehyde derivatives 3,5-diacetyl-1,4-dehydrogenation two picolins.This product has maximum absorption band at 412nm, can read the absorbancy (X) of formaldehyde reaction product at this wave band with the Lico400colormeter spectrophotometer, then with absorbancy X substitution typical curve equation: Y=2.2792 (X-X
b), promptly get burst size of methanal (Y), be accurate to 0.1mg/mL.Measure at set intervals once to follow the tracks of the burst size of formaldehyde in the plank.
Embodiment
At diameter is that to place diameter be 120mm the vacuum drier bottom of 240mm (volume is 9-11L), is the crystallizing dish of 60mm highly, adding 200mL zero(ppm) water in crystallizing dish.On the fixed support above the crystallizing dish, place plank sample to be measured,, at room temperature place 24h the moisture eliminator sealing.Zero(ppm) water absorbs the formaldehyde of emitting from plank, and this solution is formaldehyde solution to be measured.
Get 10mL formaldehyde solution to be measured, 10mL methyl ethyl diketone solution, 10mL ammonium acetate solution are in the 50ml conical flask with stopper, and bottle stopper shakes up beyond the Great Wall, are put in 40 ℃ of tanks again and heat 15min, then this yellowish green solution left standstill about 1h in dark place.412nm place on Lico 400colormeter spectrophotometer, with zero(ppm) water solution as a comparison, zeroing.Use thickness to measure absorbancy X as the cuvette of 0.5cm; Simultaneously, test as blank sample, confirm blank value X with zero(ppm) water
b
Comparative example C1
With the plank is base material, is priming paint with acid cure coating, the uncoated finish paint in priming paint surface.
Embodiment E 1-E6
With the plank is base material, is priming paint with acid cure coating, at priming paint surface coated finish paint.The prescription of said finish paint is as shown in table 1.
Finish paint prescription among the table 1 embodiment E 1-E6
According to aforementioned testing method, calculate the burst size of the formaldehyde of plank sample, result such as table 2, table 3, Fig. 1, shown in Figure 2.Wherein, the data correspondence in the table 2 is shown among Fig. 2; Data correspondence in the table 3 is shown among Fig. 1.
The burst size of the formaldehyde of table 2 plank sample
The burst size of the formaldehyde of table 3 plank sample
Among the comparative example C1, the coating material solidified plank of coated acid only, the burst size of formaldehyde is very high in initial several days or a few week, the peak that it can detect far above testing tool in the burst size of three days initial formaldehyde.
Among the embodiment E 1-E6; The plank that will be coated with as finish paint according to the polyurethane coating of each prescription provided by the present invention; The burst size of formaldehyde not only is starkly lower than the plank of uncoated polyurethane coating provided by the invention in a short time, on long terms, and the very low burst size of methanal of same maintenance.
This shows, polyurethane coating provided by the present invention obviously is less than the burst size of methanal of the plank release of uncoated polyurethane coating provided by the present invention as the burst size of methanal of the plank release of finish paint coating.
Though the present invention discloses preferred embodiment as above; Right its is not in order to limiting the present invention, anyly has the knack of this art, do not breaking away from the spirit and scope of the present invention; When doing various changes and retouching, therefore the protection domain of invention should be as the criterion with the claim scope of applying for a patent.
Claims (10)
1. polyurethane coating film forming matter is the product that comprises that the reacted constituent of following ingredients mixes:
The mixture of first POLYMETHYLENE POLYPHENYLISOCYANATE and polyvalent alcohol; Said first POLYMETHYLENE POLYPHENYLISOCYANATE can use general formula R (NCO) n to represent; Wherein R representes to contain the aliphatic alkyl of 2-18 carbon atom or contains the aryl of 6-15 carbon atom or contain 8-15 carbon atom aryl aliphatic hydrocarbyl; N=2-6, the free isocyanate monomer content of said first POLYMETHYLENE POLYPHENYLISOCYANATE are smaller or equal to 0.5wt.%, and the molecular weight of said polyvalent alcohol is 500-5000; Amount of solid content is 50-100wt.%, and hydroxy radical content is counted 1-10wt.% by the weight of polyvalent alcohol; Or
The mixture of second POLYMETHYLENE POLYPHENYLISOCYANATE and polyol dispersions; Said second POLYMETHYLENE POLYPHENYLISOCYANATE is the POLYMETHYLENE POLYPHENYLISOCYANATE of internal emulsification method hydrophilic modifying; The molecular weight of said polyol dispersions is more than or equal to 10; 000, amount of solid content is 25-60wt.%, and hydroxy radical content is counted 2-10wt.% by the weight of polyol dispersions; Or
Polyurethane dispersions, said polyurethane dispersions are the polyurethane dispersions of unsaturated fatty acids modification, and its molecular weight is more than or equal to 10,000, and amount of solid content is 20-60wt.%.
2. polyurethane coating film forming matter as claimed in claim 1 is characterized in that, said polyvalent alcohol is selected from following one or more: polyester polyol, polyether glycol, polycarbonate polyol, polyolefin polyhydric alcohol.
3. polyurethane coating film forming matter as claimed in claim 1 is characterized in that, in said first POLYMETHYLENE POLYPHENYLISOCYANATE in NCO group and the said polyvalent alcohol mol ratio of OH group be 0.8: 1-1.7: 1.
4. polyurethane coating film forming matter as claimed in claim 1 is characterized in that, said polyol dispersions can be selected from following one or more: polyacrylate polyol dispersion-s, polyester polyol dispersion-s, polyurethane polyol dispersion-s.
5. polyurethane coating film forming matter as claimed in claim 1 is characterized in that, in said second POLYMETHYLENE POLYPHENYLISOCYANATE in NCO group and the said polyol dispersions mol ratio of OH group be 1: 1-2: 1.
6. a polyurethane coating comprises like the described arbitrary polyurethane coating film forming matter of right 1-5, auxiliary agent and solvent.
7. polyurethane coating as claimed in claim 7 is characterized in that, said auxiliary agent can be selected from following one or more: skimmer, flow agent, base material wetting agent, film coalescence aid; Said solvent can be selected from following one or more: benzene kind solvent, esters solvent, ketones solvent, alkane solvents.
8. a polyurethane coating is the product of coating like claim 6 or 7 described arbitrary polyurethane coating gained.
9. use in the polyurethane coating in preparation like the described arbitrary polyurethane coating film forming matter of claim 1-5 for one kind.
10. one kind like the application in the preparation polyurethane coating of claim 6 or 7 described arbitrary polyurethane coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110007852XA CN102533092A (en) | 2010-12-30 | 2010-12-30 | Polyurethane coating film-forming material, polyurethane coating and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110007852XA CN102533092A (en) | 2010-12-30 | 2010-12-30 | Polyurethane coating film-forming material, polyurethane coating and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102533092A true CN102533092A (en) | 2012-07-04 |
Family
ID=46341181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110007852XA Pending CN102533092A (en) | 2010-12-30 | 2010-12-30 | Polyurethane coating film-forming material, polyurethane coating and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102533092A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105764946A (en) * | 2013-12-02 | 2016-07-13 | 巴斯夫欧洲公司 | Polyurethanes having reduced aldehyde emission |
| CN107141865A (en) * | 2017-05-25 | 2017-09-08 | 安徽梅兰园林景观工程有限公司 | A kind of trees insect prevention, antifreezing dope and preparation method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456642A (en) * | 1981-02-03 | 1984-06-26 | Bayer Aktiengesellschaft | Gel pads and a process for their preparation |
| CN1208422A (en) * | 1995-12-07 | 1999-02-17 | 巴斯福涂料股份公司 | Aqueous polyurethane resin and grafted polymer thereon |
| US6017998A (en) * | 1998-06-17 | 2000-01-25 | H.B. Fuller Licensing & Financing,Inc. | Stable aqueous polyurethane dispersions |
| CN1322232A (en) * | 1999-09-21 | 2001-11-14 | 出光兴产株式会社 | Organic electroluminescent device and organic light-emitting medium |
| CN1444613A (en) * | 2000-07-31 | 2003-09-24 | 拜尔公司 | Multi-layered coating systems consisting of thick, gel-type base coat and top coat of polyurethane lacquer, production and use thereof |
| CN1494561A (en) * | 2000-09-04 | 2004-05-05 | Aqueous zk PUR systems | |
| CN1778826A (en) * | 2004-11-25 | 2006-05-31 | 拜尔材料科学股份公司 | Polyisocyanate mixtures, process for their preparation and their use in coating compositions |
| CN101831236A (en) * | 2009-03-12 | 2010-09-15 | 汤汉良 | Aqueous metallic basecoat and preparation method thereof |
-
2010
- 2010-12-30 CN CN201110007852XA patent/CN102533092A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456642A (en) * | 1981-02-03 | 1984-06-26 | Bayer Aktiengesellschaft | Gel pads and a process for their preparation |
| CN1208422A (en) * | 1995-12-07 | 1999-02-17 | 巴斯福涂料股份公司 | Aqueous polyurethane resin and grafted polymer thereon |
| US6017998A (en) * | 1998-06-17 | 2000-01-25 | H.B. Fuller Licensing & Financing,Inc. | Stable aqueous polyurethane dispersions |
| CN1322232A (en) * | 1999-09-21 | 2001-11-14 | 出光兴产株式会社 | Organic electroluminescent device and organic light-emitting medium |
| CN1444613A (en) * | 2000-07-31 | 2003-09-24 | 拜尔公司 | Multi-layered coating systems consisting of thick, gel-type base coat and top coat of polyurethane lacquer, production and use thereof |
| CN1494561A (en) * | 2000-09-04 | 2004-05-05 | Aqueous zk PUR systems | |
| CN1778826A (en) * | 2004-11-25 | 2006-05-31 | 拜尔材料科学股份公司 | Polyisocyanate mixtures, process for their preparation and their use in coating compositions |
| CN101831236A (en) * | 2009-03-12 | 2010-09-15 | 汤汉良 | Aqueous metallic basecoat and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105764946A (en) * | 2013-12-02 | 2016-07-13 | 巴斯夫欧洲公司 | Polyurethanes having reduced aldehyde emission |
| CN105764946B (en) * | 2013-12-02 | 2019-12-27 | 巴斯夫欧洲公司 | Polyurethanes with reduced aldehyde emissions |
| CN107141865A (en) * | 2017-05-25 | 2017-09-08 | 安徽梅兰园林景观工程有限公司 | A kind of trees insect prevention, antifreezing dope and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100471891C (en) | Hydrophobic low viscosity polyols | |
| CA2948881C (en) | Selectively strippable coatings for metallic and plastic substrates | |
| CA2514588C (en) | Solvent borne 2k coating compositions | |
| AU2013213637B2 (en) | Zinc (1-methylimidazole)bis(2-ethylhexanoate) complex catalyzed coating material composition | |
| CN105199511B (en) | A kind of stainless steel ground varnish and its preparation method and application | |
| CA2364598A1 (en) | Polyurethane solutions containing alkoxysilane structural units | |
| CN104927743A (en) | Water-based composite environmentally-friendly foaming adhesive made from vinyl polymer and polyurethane, and preparation method of water-based composite environmentally-friendly foaming adhesive | |
| AU2014349938B2 (en) | Crosslinkable compositions of 2k polyurethanes with low VOC content | |
| CN103339165A (en) | Polyurethane coating material composition, multistage coating methods using these coating material compositions, and also the use of the coating material composition as clearcoat material and pigmented coating material, and application of the coating | |
| WO2014048634A2 (en) | Water-dispersible polyisocyanates | |
| CN101437863A (en) | Oil based aqueous polyurethane dispersions | |
| CN104136474A (en) | Non-aqueous liquid coating composition | |
| CN102504660A (en) | Water-based finishing paint for plastics and preparation method and application thereof | |
| CA2849186A1 (en) | 2-component polyurethane coating on fiber cement | |
| CN109486408A (en) | Exempt from high anti-sag PU priming paint of filling and preparation method thereof of polishing | |
| CN107207695A (en) | Coating agent system based on low acid number polyalcohol | |
| CN104877107A (en) | Aqueous dual-component polyurethane paint system | |
| CN101918470A (en) | Metal coating composition | |
| CN110790896B (en) | Blocked polyisocyanate and aqueous coating composition containing same | |
| CN102533092A (en) | Polyurethane coating film-forming material, polyurethane coating and application thereof | |
| KR20060052058A (en) | Hybrid topcoats | |
| CA2473795A1 (en) | Polyurethane coating compositions | |
| CN109844045A (en) | The polyisocyanate mixtures based on TDI with high solids content | |
| WO2009013576A1 (en) | Reactive diluents for modifying thermosetting paint compositions and paint compositions in which they are used. | |
| JP2003246827A (en) | Water-dispersible polyisocyanate composition, aqueous curable composition, and coating and adhesive comprising aqueous curable composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201507 Shanghai Caojing Chemical Industry Zone of Shanghai Muhua Road No. 82 Applicant after: A polymer (China) cosmos Co. Ltd. Address before: 201507 Shanghai Caojing Chemical Industry Zone of Shanghai Muhua Road No. 82 Applicant before: Bayer Material Science (China) Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |