CN105199589A - Weather-resistant anti-abrasion modified polyurethane waterborne paint - Google Patents
Weather-resistant anti-abrasion modified polyurethane waterborne paint Download PDFInfo
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- CN105199589A CN105199589A CN201510613427.3A CN201510613427A CN105199589A CN 105199589 A CN105199589 A CN 105199589A CN 201510613427 A CN201510613427 A CN 201510613427A CN 105199589 A CN105199589 A CN 105199589A
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Abstract
The invention discloses weather-resistant anti-abrasion modified polyurethane waterborne paint. The waterborne paint is prepared from, by weight, 80-120 parts of modified polyurethane, 10-30 parts of polyacrylate emulsion, 5-15 parts of dioctyl phthalate, 2-8 parts of tributyl phosphate, 1-5 parts of glycerin alkyd resin, 3-9 parts of 3-aminopropyltrimethoxysilane, 1-5 parts of ethylene glycol butyl ether, 2-6 parts of hydroxymethyl cellulose, 1-5 parts of titanium dioxide, 2-4 parts of talcum powder, 1-5 parts of silicon dioxide, 2-4 parts of zinc oxide, 4-6 parts of aluminium oleate, 5-9 parts of pigments, 2-5 parts of flexibilizers, 1-6 parts of defoaming agents, 3-5 parts of flatting agents, 4-8 parts of mildew preventives, 3-8 parts of dispersing agents and 15-25 parts of deionized water. The invention further discloses a method for preparing the weather-resistant anti-abrasion modified polyurethane waterborne paint. The obtained waterborne paint has good weather resistance and abrasion resistance, has excellent water resistance, heat stability and adhesion between coated objects on the basis that a raw material is good in softness, chemical resistance and environment-friendly performance, and is excellent in comprehensive performance, good in durability and wide in application prospect.
Description
Technical field
The present invention relates to water-borne coatings, particularly relate to a kind of weather-proof wear-resisting modified polyurethane water-borne coatings.
Background technology
Every coating using water as solvent or make dispersion medium, all can be described as water-borne coatings.Water-borne coatings comprises water soluble paint, water-reducible coatings, water-dispersible paint 3 kinds.Water soluble paint take water soluble resin as film forming matter, with polyvinyl alcohol and various modifier thereof for representative, in addition also has water-soluble Synolac, water-soluble epoxy resin and inorganic polymer water-base resin etc.
Polyurethane water-based paint function singleness of the prior art, weathering resistance and wearing no resistance, bonding force is weak, and waterproof effect is poor, cannot meet the demand of actual use.
Summary of the invention
For solving the technical problem existed in background technology, the present invention proposes a kind of weather-proof wear-resisting modified polyurethane water-borne coatings, and the water-borne coatings of gained has good weathering resistance and wear resistance, strong with basal plane cohesive force, good water-proof effect.
A kind of weather-proof wear-resisting modified polyurethane water-borne coatings that the present invention proposes, its raw material comprises by weight: modified polyurethane 80-120 part, polyacrylate dispersion 10-30 part, dioctyl phthalate (DOP) 5-15 part, tributyl phosphate 2-8 part, glyptal 1-5 part, 3-aminopropyl trimethoxysilane 3-9 part, ethylene glycol monobutyl ether 1-5 part, Walocel MT 20.000PV 2-6 part, titanium dioxide 1-5 part, talcum powder 2-4 part, silica 1-5 parts, zinc oxide 2-4 part, aluminium oleate 4-6 part, pigment 5-9 part, toughner 2-5 part, defoamer 1-6 part, advection agent 3-5 part, mould inhibitor 4-8 part, dispersion agent 3-8 part, deionized water 15-25 part.
Preferably, the weight ratio of modified polyurethane and polyacrylate dispersion is 85-115:15-25.
Preferably, the weight ratio of dioctyl phthalate (DOP), tributyl phosphate, glyptal, 3-aminopropyl trimethoxysilane and ethylene glycol monobutyl ether is 5-15:2-8:1-5:3-9:1-5.
Preferably, the weight ratio of Walocel MT 20.000PV, titanium dioxide, talcum powder and silicon-dioxide is 2-6:1-5:2-4:1-5.
Preferably, its raw material comprises by weight: modified polyurethane 85-115 part, polyacrylate dispersion 15-25 part, dioctyl phthalate (DOP) 8-12 part, tributyl phosphate 3-7 part, glyptal 2-4 part, 3-aminopropyl trimethoxysilane 4-8 part, ethylene glycol monobutyl ether 2-4 part, Walocel MT 20.000PV 3-5 part, titanium dioxide 2-4 part, talcum powder 2.5-3.5 part, silicon-dioxide 2-4 part, zinc oxide 2.5-3.5 part, aluminium oleate 4.5-5.5 part, pigment 6-8 part, toughner 3-4 part, defoamer 2-5 part, advection agent 3.5-4.5 part, mould inhibitor 5-7 part, dispersion agent 4-7 part, deionized water 18-22 part.
Preferably, modified polyurethane is prepared by following technique: be that performed polymer prepared by raw material with 2,6-tolylene diisocyanate, polyether glycol, BDO, dimethylol propionic acid, tricyanic epoxy resin; Add the end-NCO of Hydroxyethyl acrylate to performed polymer and carry out end-blocking, reaction 20-40min; Be cooled to 35-55 DEG C, add triethylamine and carry out neutralization reaction generation salt, reaction 4-8min; Add deionized water and carry out emulsification 40-80min, be cooled to room temperature and obtain modified polyurethane.
Preferably, in the preparation technology of modified polyurethane, 2, the weight ratio of 6-tolylene diisocyanate, polyether glycol, BDO, dimethylol propionic acid, tricyanic epoxy resin, Hydroxyethyl acrylate, triethylamine and deionized water is 8-16:3-8:2-6:3-8:4-9:1-5:2-6:4-8.
Preferably, toughner is one or more compositions in styrene butadiene thermoplasticelastomer, acrylonitrile-butadiene-styrene copolymer, chlorinatedpolyethylene, ethylene-vinyl acetate copolymer, softening agent DEP, softening agent DCHP and softening agent DOM.
Preferably, advection agent is one or more compositions in polydimethylsiloxane, alkyl-modified organo-siloxane, fluorin modified crylic acid flow agent and phosphate modified vinylformic acid flow agent.
Preferably, mould inhibitor is selected from one in quaternary amine, isothiazolinone, Wocosin 50TK, m-tetrachlorophthalodinitrile, the iodo-2-propynyl-butyl carbamate of 3-, benzene thiophene cyanogen or two or more composition.
The raw material of a kind of weather-proof wear-resisting modified polyurethane water-borne coatings of the present invention comprises: modified polyurethane, polyacrylate dispersion, dioctyl phthalate (DOP), tributyl phosphate, glyptal, 3-aminopropyl trimethoxysilane, ethylene glycol monobutyl ether, Walocel MT 20.000PV, titanium dioxide, talcum powder, silicon-dioxide, zinc oxide, aluminium oleate, pigment, toughner, defoamer, advection agent, mould inhibitor, dispersion agent and deionized water, the proportioning of each component of conservative control, take modified polyurethane as major ingredient, because epoxy resin contains active epoxide group, the building-up reactions of aqueous polyurethane can be participated in directly.Common epoxide modified aqueous polyurethane is that epoxy resin and polyurethane reaction rear section are formed reticulated structure, comprehensive with the mechanical property and thermotolerance, water tolerance and solvent resistance etc. that improve aqueous polyurethane film; Auxiliary dioctyl phthalate (DOP), tributyl phosphate and the glyptal of adding is as film forming matter simultaneously, makes weather-proof wear-resisting modified polyurethane water-borne coatings of the present invention have good wear resistance and weathering resistance; The 3-aminopropyl trimethoxysilane of adding and ethylene glycol monobutyl ether use as hydrotropy and thinner; The Walocel MT 20.000PV added, titanium dioxide, talcum powder, silicon-dioxide and zinc oxide, as filler, effectively improve wear resisting property and the weather resistance of water-borne coatings of the present invention; The aluminium oleate added, pigment, toughner, defoamer, advection agent, mould inhibitor and dispersion agent, as auxiliary agent, effectively improve the over-all properties of water-borne coatings of the present invention.Water-borne coatings of the present invention has good weathering resistance and wear resistance, the basis of good soft feeling performance, chemical resistance and the environmental-protecting performance of raw material has again excellent water tolerance, thermostability and and coated thing between cohesiveness, excellent combination property, wearing quality is good, has a extensive future.
Specific embodiment party
Below in conjunction with specific embodiment, the present invention is described in detail; should understand; embodiment is only for illustration of the present invention, instead of for limiting the present invention, any amendment, equivalent replacement etc. made on basis of the present invention is all in protection scope of the present invention.
In embodiment, the weight part of modified polyurethane can be 80 parts, 85 parts, 90 parts, 95 parts, 100 parts, 105 parts, 110 parts, 115 parts, 120 parts; The weight part of polyacrylate dispersion can be 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts; The weight part of dioctyl phthalate (DOP) can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts; The weight part of tributyl phosphate can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts; The weight part of glyptal can be 1 part, 2 parts, 3 parts, 4 parts, 5 parts; The weight part of 3-aminopropyl trimethoxysilane can be 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts ,-9 parts; The weight part of ethylene glycol monobutyl ether can be 1 part, 2 parts, 3 parts, 4 parts, 5 parts; The weight part of Walocel MT 20.000PV can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts; The weight part of titanium dioxide can be 1 part, 2 parts, 3 parts, 4 parts, 5 parts; Talcous weight part can be 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts; The weight part of silicon-dioxide can be 1 part, 2 parts, 3 parts, 4 parts, 5 parts; The weight part of zinc oxide can be 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts; The weight part of aluminium oleate can be 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts; The weight part of pigment can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts; The weight part of toughner can be 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts; The weight part of defoamer can be 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts; The weight part of advection agent can be 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts; The weight part of mould inhibitor can be 4 parts, 5 parts, 6 parts, 7 parts, 8 parts; The weight part of dispersion agent can be 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts; The weight part of deionized water can be 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts.
Embodiment 1
A kind of weather-proof wear-resisting modified polyurethane water-borne coatings that the present invention proposes, its raw material comprises by weight: modified polyurethane 100 parts, polyacrylate dispersion 20 parts, dioctyl phthalate (DOP) 10 parts, tributyl phosphate 5 parts, glyptal 3 parts, 3-aminopropyl trimethoxysilane 6 parts, ethylene glycol monobutyl ether 3 parts, Walocel MT 20.000PV 4 parts, titanium dioxide 3 parts, talcum powder 3 parts, silicon-dioxide 3 parts, 3 parts, zinc oxide, aluminium oleate 5 parts, pigment 7 parts, toughner 3.5 parts, defoamer 3.5 parts, advection agent 4 parts, mould inhibitor 6 parts, dispersion agent 5.5 parts, deionized water 20 parts.
Modified polyurethane is prepared by following technique: be that performed polymer prepared by raw material with 12 part of 2,6-tolylene diisocyanate, 5.5 parts of polyether glycols, 4 parts of BDOs, 5.5 parts of dimethylol propionic acids, 6.5 parts of tricyanic epoxy resins by weight; Add the end-NCO of 3 parts of Hydroxyethyl acrylates to performed polymer and carry out end-blocking, reaction 30min; Be cooled to 45 DEG C, add 4 parts of triethylamines and carry out neutralization reaction generation salt, reaction 6min; Add 6 parts of deionized waters and carry out emulsification 60min, be cooled to room temperature and obtain modified polyurethane.
Embodiment 2
A kind of weather-proof wear-resisting modified polyurethane water-borne coatings that the present invention proposes, its raw material comprises by weight: modified polyurethane 80 parts, polyacrylate dispersion 30 parts, dioctyl phthalate (DOP) 5 parts, tributyl phosphate 8 parts, glyptal 1 part, 3-aminopropyl trimethoxysilane 9 parts, ethylene glycol monobutyl ether 1 part, Walocel MT 20.000PV 6 parts, titanium dioxide 1 part, talcum powder 4 parts, silica 1 part, 4 parts, zinc oxide, aluminium oleate 4 parts, pigment 9 parts, toughner 2 parts, defoamer 6 parts, advection agent 3 parts, mould inhibitor 8 parts, dispersion agent 3 parts, deionized water 25 parts.
Modified polyurethane is prepared by following technique: be that performed polymer prepared by raw material with 8 part of 2,6-tolylene diisocyanate, 8 parts of polyether glycols, 2 parts of BDOs, 8 parts of dimethylol propionic acids, 4 parts of tricyanic epoxy resins by weight; Add the end-NCO of 5 parts of Hydroxyethyl acrylates to performed polymer and carry out end-blocking, reaction 20min; Be cooled to 55 DEG C, add 2 parts of triethylamines and carry out neutralization reaction generation salt, reaction 8min; Add 4 parts of deionized waters and carry out emulsification 80min, be cooled to room temperature and obtain modified polyurethane.
Embodiment 3
A kind of weather-proof wear-resisting modified polyurethane water-borne coatings that the present invention proposes, its raw material comprises by weight: modified polyurethane 120 parts, polyacrylate dispersion 10 parts, dioctyl phthalate (DOP) 15 parts, tributyl phosphate 2 parts, glyptal 5 parts, 3-aminopropyl trimethoxysilane 3 parts, ethylene glycol monobutyl ether 5 parts, Walocel MT 20.000PV 2 parts, titanium dioxide 5 parts, talcum powder 2 parts, silicon-dioxide 5 parts, 2 parts, zinc oxide, aluminium oleate 6 parts, pigment 5 parts, toughner 5 parts, defoamer 1 part, advection agent 5 parts, mould inhibitor 4 parts, dispersion agent 8 parts, deionized water 15 parts.
Modified polyurethane is prepared by following technique: be that performed polymer prepared by raw material with 16 part of 2,6-tolylene diisocyanate, 3 parts of polyether glycols, 6 parts of BDOs, 3 parts of dimethylol propionic acids, 9 parts of tricyanic epoxy resins by weight; Add the end-NCO of 1 part of Hydroxyethyl acrylate to performed polymer and carry out end-blocking, reaction 40min; Be cooled to 35 DEG C, add 6 parts of triethylamines and carry out neutralization reaction generation salt, reaction 4min; Add 8 parts of deionized waters and carry out emulsification 40min, be cooled to room temperature and obtain modified polyurethane.
Embodiment 4
A kind of weather-proof wear-resisting modified polyurethane water-borne coatings that the present invention proposes, its raw material comprises by weight: modified polyurethane 85 parts, polyacrylate dispersion 25 parts, dioctyl phthalate (DOP) 8 parts, tributyl phosphate 7 parts, glyptal 2 parts, 3-aminopropyl trimethoxysilane 8 parts, ethylene glycol monobutyl ether 2 parts, Walocel MT 20.000PV 5 parts, titanium dioxide 2 parts, talcum powder 3.5 parts, silicon-dioxide 2 parts, 3.5 parts, zinc oxide, aluminium oleate 4.5 parts, pigment 8 parts, toughner 3 parts, defoamer 5 parts, advection agent 3.5 parts, mould inhibitor 7 parts, dispersion agent 4 parts, deionized water 22 parts.
Modified polyurethane is prepared by following technique: be that performed polymer prepared by raw material with 9 part of 2,6-tolylene diisocyanate, 7 parts of polyether glycols, 3 parts of BDOs, 7 parts of dimethylol propionic acids, 5 parts of tricyanic epoxy resins by weight; Add the end-NCO of 4 parts of Hydroxyethyl acrylates to performed polymer and carry out end-blocking, reaction 25min; Be cooled to 50 DEG C, add 3 parts of triethylamines and carry out neutralization reaction generation salt, reaction 7min; Add 5 parts of deionized waters and carry out emulsification 75min, be cooled to room temperature and obtain modified polyurethane.
Embodiment 5
A kind of weather-proof wear-resisting modified polyurethane water-borne coatings that the present invention proposes, its raw material comprises by weight: modified polyurethane 115 parts, polyacrylate dispersion 15 parts, dioctyl phthalate (DOP) 12 parts, tributyl phosphate 3 parts, glyptal 4 parts, 3-aminopropyl trimethoxysilane 4 parts, ethylene glycol monobutyl ether 4 parts, Walocel MT 20.000PV 3 parts, titanium dioxide 4 parts, talcum powder 2.5 parts, silicon-dioxide 4 parts, 2.5 parts, zinc oxide, aluminium oleate 5.5 parts, pigment 6 parts, toughner 4 parts, defoamer 2 parts, advection agent 4.5 parts, mould inhibitor 5 parts, dispersion agent 7 parts, deionized water 18 parts.
Modified polyurethane is prepared by following technique: be that performed polymer prepared by raw material with 15 part of 2,6-tolylene diisocyanate, 4 parts of polyether glycols, 5 parts of BDOs, 4 parts of dimethylol propionic acids, 8 parts of tricyanic epoxy resins by weight; Add the end-NCO of 2 parts of Hydroxyethyl acrylates to performed polymer and carry out end-blocking, reaction 35min; Be cooled to 40 DEG C, add 5 parts of triethylamines and carry out neutralization reaction generation salt, reaction 5min; Add 7 parts of deionized waters and carry out emulsification 45min, be cooled to room temperature and obtain modified polyurethane.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a weather-proof wear-resisting modified polyurethane water-borne coatings, it is characterized in that, its raw material comprises by weight: modified polyurethane 80-120 part, polyacrylate dispersion 10-30 part, dioctyl phthalate (DOP) 5-15 part, tributyl phosphate 2-8 part, glyptal 1-5 part, 3-aminopropyl trimethoxysilane 3-9 part, ethylene glycol monobutyl ether 1-5 part, Walocel MT 20.000PV 2-6 part, titanium dioxide 1-5 part, talcum powder 2-4 part, silica 1-5 parts, zinc oxide 2-4 part, aluminium oleate 4-6 part, pigment 5-9 part, toughner 2-5 part, defoamer 1-6 part, advection agent 3-5 part, mould inhibitor 4-8 part, dispersion agent 3-8 part, deionized water 15-25 part.
2. weather-proof wear-resisting modified polyurethane water-borne coatings according to claim 1, is characterized in that, the weight ratio of modified polyurethane and polyacrylate dispersion is 85-115:15-25.
3. weather-proof wear-resisting modified polyurethane water-borne coatings according to claim 1 and 2, it is characterized in that, the weight ratio of dioctyl phthalate (DOP), tributyl phosphate, glyptal, 3-aminopropyl trimethoxysilane and ethylene glycol monobutyl ether is 5-15:2-8:1-5:3-9:1-5.
4. the weather-proof wear-resisting modified polyurethane water-borne coatings according to any one of claim 1-3, is characterized in that, the weight ratio of Walocel MT 20.000PV, titanium dioxide, talcum powder and silicon-dioxide is 2-6:1-5:2-4:1-5.
5. the weather-proof wear-resisting modified polyurethane water-borne coatings according to any one of claim 1-4, it is characterized in that, its raw material comprises by weight: modified polyurethane 85-115 part, polyacrylate dispersion 15-25 part, dioctyl phthalate (DOP) 8-12 part, tributyl phosphate 3-7 part, glyptal 2-4 part, 3-aminopropyl trimethoxysilane 4-8 part, ethylene glycol monobutyl ether 2-4 part, Walocel MT 20.000PV 3-5 part, titanium dioxide 2-4 part, talcum powder 2.5-3.5 part, silicon-dioxide 2-4 part, zinc oxide 2.5-3.5 part, aluminium oleate 4.5-5.5 part, pigment 6-8 part, toughner 3-4 part, defoamer 2-5 part, advection agent 3.5-4.5 part, mould inhibitor 5-7 part, dispersion agent 4-7 part, deionized water 18-22 part.
6. the weather-proof wear-resisting modified polyurethane water-borne coatings according to any one of claim 1-5, it is characterized in that, modified polyurethane is prepared by following technique: with 2,6-tolylene diisocyanate, polyether glycol, BDO, dimethylol propionic acid, tricyanic epoxy resin are that performed polymer prepared by raw material; Add the end-NCO of Hydroxyethyl acrylate to performed polymer and carry out end-blocking, reaction 20-40min; Be cooled to 35-55 DEG C, add triethylamine and carry out neutralization reaction generation salt, reaction 4-8min; Add deionized water and carry out emulsification 40-80min, be cooled to room temperature and obtain modified polyurethane.
7. weather-proof wear-resisting modified polyurethane water-borne coatings according to claim 6, it is characterized in that, in the preparation technology of modified polyurethane, 2, the weight ratio of 6-tolylene diisocyanate, polyether glycol, BDO, dimethylol propionic acid, tricyanic epoxy resin, Hydroxyethyl acrylate, triethylamine and deionized water is 8-16:3-8:2-6:3-8:4-9:1-5:2-6:4-8.
8. the weather-proof wear-resisting modified polyurethane water-borne coatings according to any one of claim 1-7, it is characterized in that, toughner is one or more compositions in styrene butadiene thermoplasticelastomer, acrylonitrile-butadiene-styrene copolymer, chlorinatedpolyethylene, ethylene-vinyl acetate copolymer, softening agent DEP, softening agent DCHP and softening agent DOM.
9. the weather-proof wear-resisting modified polyurethane water-borne coatings according to any one of claim 1-8, it is characterized in that, advection agent is one or more compositions in polydimethylsiloxane, alkyl-modified organo-siloxane, fluorin modified crylic acid flow agent and phosphate modified vinylformic acid flow agent.
10. the weather-proof wear-resisting modified polyurethane water-borne coatings according to any one of claim 1-9, it is characterized in that, mould inhibitor is selected from one in quaternary amine, isothiazolinone, Wocosin 50TK, m-tetrachlorophthalodinitrile, the iodo-2-propynyl-butyl carbamate of 3-, benzene thiophene cyanogen or two or more composition.
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| CN105885594A (en) * | 2016-06-27 | 2016-08-24 | 赵兰 | High-stability self-cleaning coating material and preparation method thereof |
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