CN106008895A - Anionic waterborne polyurethane resin for wood lacquer and preparation method of anionic waterborne polyurethane resin - Google Patents
Anionic waterborne polyurethane resin for wood lacquer and preparation method of anionic waterborne polyurethane resin Download PDFInfo
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- CN106008895A CN106008895A CN201610476063.3A CN201610476063A CN106008895A CN 106008895 A CN106008895 A CN 106008895A CN 201610476063 A CN201610476063 A CN 201610476063A CN 106008895 A CN106008895 A CN 106008895A
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- polyurethane resin
- aqueous polyurethane
- anion aqueous
- chain extender
- diisocyanate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6659—Compounds of group C08G18/42 with compounds of group C08G18/34
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3228—Polyamines acyclic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3234—Polyamines cycloaliphatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3893—Low-molecular-weight compounds having heteroatoms other than oxygen containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6648—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6651—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
Abstract
The invention provides anionic waterborne polyurethane resin for wood lacquer and a preparation method of the anionic waterborne polyurethane resin. The anionic waterborne polyurethane resin is prepared from, by weight, 30-40 parts of polyhydric alcohol, 40-60 parts of polyisocyanate, 3-6 parts of a first chain extender, 6-10 parts of a second chain extender, 3-5 parts of a third chain extender, 0.1-1 part of a coupling agent and 2-5 parts of a salt forming agent. The waterborne wood lacquer prepared from the obtained anionic waterborne polyurethane resin has the excellent hardness, alcohol resistance and water resistance, the hardness can reach 3H, the alcohol resistance reaches the level that no abnormality is generated after a 50% ethanol solution is dropped on a lacquer film for 2 hours, the water resistance reaches the level that no abnormality is generated after water is dropped on the lacquer film for 48 hours, and the hardness, the alcohol resistance and the water resistance are far beyond the national standard.
Description
Technical field
The present invention relates to high molecular polymer field, specifically disclose a kind of anion aqueous polyurethane for woodcare paint
Resin and preparation method thereof.
Background technology
Waterborne polyurethane resin is with water as disperse medium, without organic solvent in the course of processing, and product system
In do not contain poisonous NCO group, it is to avoid the pollution to environment and the health hazard to operator.Waterborne polyurethane resin
Being widely applied to woodcare paint field, aqueous woodware paint has without formaldehyde, without hazardous solvents such as free TDI, not containing benezene,
The advantage of asepsis environment-protecting.And owing to aqueous woodware paint primary solvent is water, using water as diluent, belong to tasteless coating, at ring
Injury two aspect of environment pollution and application personnel is below solvent based coating, so water paint is becoming increasingly popular.But single group
It is low to there is hardness in woodcare paint prepared by point aqueous polyurethane, resistance to water and the poor problem of alcohol resistance, the product of aqueous woodware paint
Quality is the best.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, it is provided that a kind of anion aqueous poly-ammonia for woodcare paint
Ester resin and preparation method thereof, this waterborne polyurethane resin the woodcare paint prepared have excellent resistance to water, alcohol resistance and
The advantage that hardness is high.
In order to realize object above and other purposes, the present invention is by including that techniques below scheme realizes: Yi Zhongyin
Ion waterborne polyurethane resin, including following raw material components and weight portion:
Preferably, described polyhydric alcohol is 24～27 parts.
Preferably, described polyisocyanates is 45～50 parts.
Preferably, described first chain extender is 4～5 parts.
Preferably, described second chain extender is 8～9 parts.
Preferably, described coupling agent is 0.5～0.7 part.
Preferably, described salt forming agent is 3～4 parts.
Preferably, described polyhydric alcohol is polynary selected from polycaprolactone polyol, polycarbonate polyol, PTMG
Alcohol, polyethylene oxide polyol, polyoxypropylene polyol and end hydroxy butadiene and polysiloxane polyhydric alcohol and polyester ether
One or more in polyhydric alcohol.
It is highly preferred that described polycarbonate polyol is by the difunctional alcohol of carbonic acid derivative with 1,4-CHDM
Reacting and obtain, the molecular weight of described polycarbonate polyol is 800-1200.
Preferably, described coupling agent is silicone coupling agents.
It is highly preferred that any one or more that described coupling agent is in model KH550, KH560, KH570, KH602,
Wherein, further preferred coupling agent model is KH560.
Preferably, described polyisocyanates selected from toluene di-isocyanate(TDI), isophorone diisocyanate, 4,4-bis-hexamethylene
Dicyclohexylmethane diisocyanate, methyl diphenylene diisocyanate, hexamethylene diisocyanate, XDI,
Naphthalene-1,5-diisocyanate, polymethylene multi-phenenyl isocyanate, tetramethylxylylene diisocyanate, methyl cyclohexane
Any one or more in group diisocyanate and dicyclohexyl methyl hydride diisocyanate.
Preferably, described first chain extender is selected from dihydromethyl propionic acid, dimethylolpropionic acid, dihydroxymethyl valeric acid and dihydroxy
Any one or more in methyloctanoic acid.
Preferably, described second chain extender selected from ethylene glycol, diglycol, BDO, 2,3-butanediol, 1,
Any one in 6-hexanediol, neopentyl glycol, diethylene glycol, glycerol, sorbitol, trimethylolpropane and hydroxymethyl-cyclohexane
Or it is multiple.
Preferably, described 3rd chain extender selected from ethylenediamine, isophorone diamine, 1,6-hexamethylene diamine, 1,3-hexamethylene diformazan
Any one or more in amine and m-xylene diamine.
Preferably, described salt forming agent is triethylamine.
The invention also discloses a kind of method preparing anion aqueous polyurethane resin described above, including following step
Rapid: described polyhydric alcohol and described polyisocyanates react 2～3h at 85～95 DEG C；Add described first chain extender and described
Second chain extender reacts 5～8h at 75～85 DEG C；It is cooled to 0～5 DEG C and adds coupling agent, add salt forming agent and neutralize；Add water
After add described 3rd chain extender, decompression distillation, it is thus achieved that anion aqueous polyurethane resin.
Preferably, acetone is added while adding described first chain extender and described second chain extender.
The viscosity acting as adjustment reaction solution of acetone.The addition of acetone can need to take the circumstances into consideration to add according to reaction.Institute
State acetone and be distilled removing in the decompression distillation stage.
The invention also discloses a kind of such as above-mentioned anion aqueous polyurethane resin purposes in woodcare paint.
Preferably, described purposes by described anion aqueous polyurethane resin after thickening, moistening, defoaming treatment, it is thus achieved that
Woodcare paint.
Thickening described above, moistening, defoaming treatment step all use usual way in prior art to carry out.
In sum, the present invention provides a kind of waterborne polyurethane resin for woodcare paint and preparation method thereof, and it is useful
Effect is: the present invention adds silicone coupling agents and polycarbonate polyol in aqueous polyurethane preparation process, containing epoxy
The silicone coupling agents of group makes the goods of waterborne polyurethane resin have high rigidity, excellent pliability, solvent resistance, silicon
Form silanol after the hydrolysis of oxygen alkane coupling agent, form cross-linked network after silanol condensation, be greatly improved the resistance to water of goods and resistance to
Solvent borne.Polycarbonate polyol is that a kind of intramolecular has multiple carbonate group, molecule two ends with the polymer of hydroxyl, poly-carbon
Acid esters polyhydric alcohol is reacted by the difunctional alcohol of carbonic acid derivative with 1,4-CHDM and obtains, carbonate polyol band
Having annular rigid structure, the present invention obtains aqueous polyurethane and has the pliability of the highest vitrification point, hardness and excellence.
The present invention is obtained the aqueous woodware paint that anion aqueous polyurethane resin is made through thickening, moistening, defoaming treatment
Having excellent hardness, alcohol resistance and resistance to water, hardness is up to 3H, and alcohol resistance reaches the ethanol solution of 50% and drops on paint film 2
Hour without exception, resistance to water reaches without exception for upper 48 hour at paint film with water droplet, surmounts far away national standard.
Detailed description of the invention
The present invention is expanded on further below in conjunction with embodiment.Should be understood that embodiment is merely to illustrate the present invention, and unrestricted
The scope of the present invention.
Embodiment 1
170g PCDL (molecular weight is 900) is added in there-necked flask, is heated to 100 DEG C of dehydrations one little
Time, then it is cooled to 50 DEG C, adds the toluene di-isocyanate(TDI) of 220g, be warming up to 90 DEG C of insulation reaction 2 hours, within two hours, measure
NCO content, is cooled to 50 DEG C after reaching theoretical value, add dihydromethyl propionic acid and the BDO of 45g and a small amount of third of 18g
Ketone adjusts viscosity, is warming up to 80 DEG C and reacts 6 hours, and reaction terminates to measure NCO content, is then cooled to 0 DEG C and adds 12g coupling agent
KH560, the triethylamine adding 13.56g is neutralized, and after neutralizing 1 minute, adds deionized water, disperse 2 points under high speed shear
Clock, is then slowly added into the isophorone diamine of the water-reducible 22g of ice, the acetone that decompression is distilled off in system, i.e. obtains
Sample 1.
Embodiment 2
160g PCDL (molecular weight is 900) is added in there-necked flask, is heated to 105 DEG C of dehydrations one little
Time, then it is cooled to 50 DEG C, adds the isophorone diisocyanate of 242g, be warming up to 90 DEG C of insulation reaction 2 hours, two hours
Measure NCO content, after reaching theoretical value, be cooled to 50 DEG C, add the dihydromethyl propionic acid of 15g and the BDO of 38g with few
Amount acetone adjusts viscosity, is warming up to 80 DEG C of reactions 8 hours, and reaction terminates to measure NCO content, is then cooled to 0 DEG C and adds 11g occasionally
Connection agent KH560, the triethylamine adding 11.3g is neutralized, and after neutralizing 1 minute, adds deionized water, disperse 2 under high speed shear
Minute, it is then slowly added into the isophorone diamine of the water-reducible 18g of ice, the acetone that decompression is distilled off in system, to obtain final product
To sample 2.
Embodiment 3
152g PCDL (molecular weight is 900) is added in there-necked flask, is heated to 100 DEG C of dehydrations one little
Time, then it is cooled to 50 DEG C, adds the toluene di-isocyanate(TDI) of 214g, be warming up to 90 DEG C of insulation reaction 2 hours, within two hours, measure
NCO content, is cooled to 50 DEG C after reaching theoretical value, add the dihydromethyl propionic acid and the 1 of 39g of 22g, 6-hexanediol and a small amount of third
Ketone adjusts viscosity, is warming up to 80 DEG C and reacts 6 hours, and reaction terminates to measure NCO content, is then cooled to 0 DEG C and adds 10g coupling agent
KH560, the triethylamine adding 16.58g is neutralized, and after neutralizing 1 minute, adds deionized water, disperse 2 points under high speed shear
Clock, is then slowly added into the ethylenediamine of the water-reducible 15g of ice, the acetone that decompression is distilled off in system, i.e. obtains sample 3.
Embodiment 4
198g PCDL (molecular weight is 900) is added in there-necked flask, is heated to 110 DEG C of dehydrations one little
Time, then it is cooled to 50 DEG C, the 4 of addition 285g, 4-dicyclohexyl methyl hydride diisocyanate, it is warming up to 90 DEG C of insulation reaction 2 little
Time, within two hours, measure NCO content, after reaching theoretical value, be cooled to 50 DEG C, add the Isosorbide-5-Nitrae of the dihydromethyl propionic acid of 15g and 34g-
Butanediol and a small amount of acetone adjust viscosity, are warming up to 80 DEG C and react 8 hours, and reaction terminates to measure NCO content, is then cooled to 0
DEG C add 15g coupling agent KH560, add 10.8g triethylamine be neutralized, after neutralizing 1 minute, under high speed shear addition go from
Sub-water, disperses 2 minutes, is then slowly added into the 1 of the water-reducible 16g of ice, 3-hexamethylene dimethylamine, and decompression is distilled off in system
Acetone, i.e. obtain sample 4.
Embodiment 5
172g PCDL (molecular weight is 900) is added in there-necked flask, is heated to 110 DEG C of dehydrations one little
Time, then it is cooled to 50 DEG C, adds the isophorone diisocyanate and the 4 of 185g of 100g, 4-dicyclohexyl methyl hydride two isocyanide
Acid esters, is warming up to 90 DEG C of insulation reaction 2 hours, within two hours, measures NCO content, is cooled to 50 DEG C after reaching theoretical value, adds 15g
Dihydromethyl propionic acid and the 1 of 44.5g, 6-hexanediol and a small amount of acetone adjusts viscosity, is warming up to 80 DEG C and reacts 8 hours, reaction
Terminating to measure NCO content, be then cooled to 0 DEG C and add 12g coupling agent KH560, the triethylamine adding 11.3g is neutralized, in
After 1 minute, add deionized water under high speed shear, disperse 2 minutes, be then slowly added into the 1,3-of the water-reducible 19g of ice
Hexamethylene dimethylamine, the acetone that decompression is distilled off in system, i.e. obtain sample 5.
Test result
(1) viscosity being coated with in four glasss of test embodiment of the present invention 1～5 waterborne polyurethane resin obtained at 25 DEG C is used
It is respectively as follows: 64S, 67S, 70S, 75S, 73S.
(2) by wetting agent appropriate for 5 the aqueous polyurethane samples additions obtained in above-described embodiment, defoamer, dispersion
Agent, levelling agent and thickening agent are modulated into aqueous woodware varnish lacquer, then according to " indoor decorating water-borne wood coating " is national
Standard GB/T 23999-2009 carries out hardness, alcohol resistance and water resistance test.
Table 1 embodiment 1 to 5 obtains the performance test results of the woodenware lacquer that aqueous polyurethane is modulated into
Table 1 obtains the performance test results of the woodenware lacquer that aqueous polyurethane is modulated into for embodiment 1-5.From table 1
Going out, mass fraction, all up to 3H, is 50% by the hardness of the woodenware lacquer that embodiment 1 to 5 acquisition aqueous polyurethane is modulated into
It is without exception for upper 2 hour that ethanol solution drops in paint film, tap water drops to paint film without exception for upper 48 hour, soaks at boiling water
30min is without exception, so, embodiment 1 to 5 obtains the aqueous woodware varnish lacquer that is modulated into of aqueous polyurethane in hardness, alcohol resistance, resistance to
The performance of aqueous and boiling water resistance complies fully with national standard, and surmounts national standard.
The above, only presently preferred embodiments of the present invention, not any formal and substantial to present invention restriction,
It should be pointed out that, for those skilled in the art, on the premise of without departing from the inventive method, also can make
Some improvement and supplement, these improve and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, make when available disclosed above technology contents a little more
The equivalent variations moved, modify and develop, is the Equivalent embodiments of the present invention；Meanwhile, all substantial technological pair according to the present invention
The change of any equivalent variations that above-described embodiment is made, modify and develop, all still fall within the scope of technical scheme
In.
Claims (10)
1. an anion aqueous polyurethane resin, it is characterised in that: include following raw material components and weight portion:
2. anion aqueous polyurethane resin as claimed in claim 1, it is characterised in that: described polyhydric alcohol is selected from polycaprolactone
Polyhydric alcohol, polycarbonate polyol, PolyTHF ethoxylated polyhydric alcohol, polyethylene oxide polyol, polyoxypropylene polyol and
Any one or more in end hydroxy butadiene and polysiloxane polyhydric alcohol and polyesterether polyols.
3. anion aqueous polyurethane resin as claimed in claim 2, it is characterised in that: described polycarbonate polyol passes through
Carbonic acid derivative reacts with 1,4 cyclohexane dimethanol and obtains.
4. anion aqueous polyurethane resin as claimed in claim 1, it is characterised in that: described coupling agent is siloxanes coupling
Agent.
5. anion aqueous polyurethane resin as claimed in claim 1, it is characterised in that: described polyisocyanates is selected from toluene
Diisocyanate, isophorone diisocyanate, 4,4-dicyclohexyl methyl hydride diisocyanate, diphenylmethane diisocyanate
Ester, hexamethylene diisocyanate, XDI, naphthalene-1,5-diisocyanate, polymethylene polyphenyl isocyanide
Acid esters, tetramethylxylylene diisocyanate, 1,3-Diisocyanatomethylcyclohexane and dicyclohexyl methyl hydride diisocyanate
In any one or more.
6. anion aqueous polyurethane resin as claimed in claim 1, it is characterised in that: described first chain extender is selected from dihydroxy
Any one or more in methylpropanoic acid, dimethylolpropionic acid, dihydroxymethyl valeric acid and dihydroxymethyl octanoic acid；Described second expands
Chain agent selected from ethylene glycol, diglycol, 1,4-butanediol, 2,3-butanediol, 1,6-HD, neopentyl glycol, diethylene glycol,
Any one or more in glycerol, sorbitol, trimethylolpropane and hydroxymethyl-cyclohexane.
7. anion aqueous polyurethane resin as claimed in claim 1, it is characterised in that: described 3rd chain extender is selected from second two
Any one or more in amine, isophorone diamine, 1,6-hexamethylene diamine, 1,3-hexamethylene dimethylamine and m-xylene diamine.
8. the method for the anion aqueous polyurethane resin that a kind is prepared as described in claim 1 to 7 is arbitrary, it is characterised in that:
Comprise the following steps: described polyhydric alcohol and described polyisocyanates react 2～3h at 85～95 DEG C；Add described first to expand
Chain agent and described second chain extender react 5～8h at 75～85 DEG C；It is cooled to 0～5 DEG C and adds described coupling agent, add institute
State salt forming agent to neutralize；Described 3rd chain extender, decompression distillation, it is thus achieved that anion aqueous polyurethane resin is added after adding water.
9. the preparation method of anion aqueous polyurethane resin as claimed in claim 8, it is characterised in that: add described first
Acetone is added while chain extender and described second chain extender.
10. the purposes in woodcare paint of the anion aqueous polyurethane resin as described in claim 1 to 7 is arbitrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476063.3A CN106008895A (en) | 2016-06-22 | 2016-06-22 | Anionic waterborne polyurethane resin for wood lacquer and preparation method of anionic waterborne polyurethane resin |
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| CN111019075A (en) * | 2019-11-29 | 2020-04-17 | 合肥科天水性科技有限责任公司 | Anionic waterborne polyurethane resin, preparation method thereof and application thereof in coating |
| CN113929853A (en) * | 2021-09-26 | 2022-01-14 | 合肥科天水性科技有限责任公司 | Nano-material modified waterborne polyurethane resin and preparation method thereof |
| CN113956431A (en) * | 2021-12-06 | 2022-01-21 | 南雄西顿化工有限公司 | Waterborne polyurethane for woodware with high alcohol resistance and preparation method thereof |
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| CN114836124A (en) * | 2022-06-06 | 2022-08-02 | 合肥科天水性科技有限责任公司 | High-transmittance high-gloss anionic waterborne polyurethane finishing paint and preparation method thereof |
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| CN106676963A (en) * | 2016-12-20 | 2017-05-17 | 合肥科天水性科技有限责任公司 | Method for enhancing wear resistance of wood floor |
| CN106676963B (en) * | 2016-12-20 | 2019-03-12 | 合肥科天水性科技有限责任公司 | A method of improving timber floor wearability |
| CN110669201A (en) * | 2019-11-15 | 2020-01-10 | 宜兴市华夏化工材料有限公司 | Preparation method and application of waterborne polyurethane emulsion |
| CN111019075A (en) * | 2019-11-29 | 2020-04-17 | 合肥科天水性科技有限责任公司 | Anionic waterborne polyurethane resin, preparation method thereof and application thereof in coating |
| CN114276706A (en) * | 2020-03-30 | 2022-04-05 | 欧朋(深圳)环保涂料有限公司 | Water-based varnish for vehicle |
| CN113929853A (en) * | 2021-09-26 | 2022-01-14 | 合肥科天水性科技有限责任公司 | Nano-material modified waterborne polyurethane resin and preparation method thereof |
| CN113956431A (en) * | 2021-12-06 | 2022-01-21 | 南雄西顿化工有限公司 | Waterborne polyurethane for woodware with high alcohol resistance and preparation method thereof |
| CN114836124A (en) * | 2022-06-06 | 2022-08-02 | 合肥科天水性科技有限责任公司 | High-transmittance high-gloss anionic waterborne polyurethane finishing paint and preparation method thereof |
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