CN1278543A - Polyurethane resin paint and its production process - Google Patents
Polyurethane resin paint and its production process Download PDFInfo
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- CN1278543A CN1278543A CN 00116520 CN00116520A CN1278543A CN 1278543 A CN1278543 A CN 1278543A CN 00116520 CN00116520 CN 00116520 CN 00116520 A CN00116520 A CN 00116520A CN 1278543 A CN1278543 A CN 1278543A
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- polyurethane resin
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Abstract
The polyurethane resin coating material comprises two components of A and B, the component A comprises modified polyester resin, pigment filler, adjuvant and solvent, and the component B comprises addition compound produced by polymerization reaction of polymethylene polyphenyl polyisocyanate and polylol polyether. Because the hydroxyl on the polyester molecule and isocyanic acid radical on the addition compound molecule can be formed into space-network structure with high cross-linking density, so that after said coating material is film-formed, the coating film posseses the excellent corrosion resistance, flexibility, abrasive resistance, strong adhesive force, good permeability and low toxin. Said invention is simple in production method, can save energy source and its cost is low.
Description
The present invention relates to a kind of polyurethane resin coating and production method thereof.
General both at home and abroad sewerage concrete inner wall with polyurethane coating mainly be the affixture that contains tolylene diisocyanate (TDI) and polyvalent alcohol, with the prepolymer of Viscotrol C, with the prepolymer of polyethers etc.They have fabulous sticking power, wear resistance and solidity to corrosion, but also have many shortcomings, and as in the manufacturing processed low water content in the starting material being had higher requirements, solvent also has certain selectivity, big, the construction trouble of toxicity, plants big to other lacquers of human body hazard ratio.Therefore the coating that contains the urethane resin of above type is not suitable for use under the relatively poor environment of ventilation condition.
As everyone knows, the free vapour pressure of poly methylene poly phenyl poly isocyanate (PAPI) is low more than TD1, so toxicity is low, and the symmetrical structure of PAPI, make intensity, wear resistance, the elasticity of its paint film all be better than TD1 coating, external a lot of protection against corrosion priming paint and elastic coating of being used for.The PAPI price is lower than TD1 simultaneously, can be made into solventless coatings, films to have excellent mechanicalness and chemical resistant properties.
In order to overcome the shortcoming that above-mentioned general polyurethane resin coating exists, the present invention considers the advantage that the PAPI raw material has, and gets it and carries out the research work that polyurethane resin coating is produced as the isocyanic ester raw material, has obtained satisfied result.
For this reason, the object of the invention provides a kind of urethane resin coating and production method thereof, this coating contains the urethane resin that generates with the affixture of poly methylene poly phenyl poly isocyanate and polyalcohol polyether reaction and modified polyester resin reaction, has excellent corrosion stability, cohesive strength, permeability resistance and wear resistance after this coating film forming.
The urethane resin of active hydroxyl crosslinking reaction generation in the isocyano that polyurethane resin coating provided by the invention contains the affixture that is generated by poly methylene poly phenyl poly isocyanate and polyalcohol polyether polyreaction and the vibrin molecular chain of modification, and be equipped with color stuffing, auxiliary agent and solvent and form together.
The present invention is to provide the dual-component polyurethane cold coating, comprise first, second two components, the first component comprises polyester resin, color stuffing, auxiliary agent and solvent, and component B comprises the affixture of poly methylene poly phenyl poly isocyanate and the generation of polyalcohol polyether polyreaction.The constituent proportioning out of the ordinary of first, second two components is as follows.
The proportioning of constituent in the first component:
| Constituent | Weight % |
| Modified polyester resin | ????30-45 |
| Pigment | ????12-20 |
| Filler | ????25-35 |
| Dispersion agent | ????0．5-1．5 |
| Flow agent | ????1-2 |
| Defoamer | ????0．5-1 |
| Coupling agent | ????0．5-1 |
| Solvent | ????0-20 |
Color stuffing, auxiliary agent and solvent composition thing all are the commercial goods in the above-mentioned first component prescription, and pigment can need to select arbitrarily by painting color.Filler can be mica powder, process white powder, superfine talcum powder etc.Solvent can be 260 solvents, propylene glycol monomethyl ether, butyl glycol ether etc.
Modified polyester resin is made up of with weight % following thing: vibrin 10-20, Resins, epoxy 30-45, propylene oxide benzylic ether 0-15, a condensed ethandiol 3-9, ethylene glycol 3-9, softening agent 8-15, trihydroxy methyl propane 2-5, solvent 0-30.Non-volatile part of content is 70-100 weight % in the modified poly ester resin, and viscosity is 300-500mPas.The propylene oxide benzylic ether is a reactive thinner, is used to reduce Resins, epoxy viscosity.Softening agent is dibutyl phthalate or dioctyl phthalate (DOP).Solvent is 260 solvents, propylene glycol monomethyl ether, butyl glycol ether etc.
The proportioning of constituent in the component B:
| Constituent | Weight % |
| Poly methylene poly phenyl poly isocyanate | ????40-70 |
| The dibasic alcohol polyethers | ????15-25 |
| The trivalent alcohol polyethers | ????4-10 |
| Softening agent | ????5-10 |
| Solvent | ????0-20 |
The dibasic alcohol polyethers can be that commercial goods N220 polyethers, N204 polyethers, trivalent alcohol polyethers can be commercial goods N330 polyethers in the above-mentioned component B prescription, 3050 polyethers.Softening agent can be dibutyl phthalate or dioctyl phthalate (DOP).Solvent is 260 solvents, propylene glycol monomethyl ether, butyl glycol ether etc.
The weight proportion of first component and component B is 1: 1.
The production method of polyurethane resin coating of the present invention comprises the following steps:
The first step with poly methylene poly phenyl poly isocyanate and dibasic alcohol polyethers, trivalent alcohol polyethers, softening agent and solvent by the described proportioning weighing of above-mentioned component B, under 75-80 ℃ of temperature condition polyreaction 6-8 hour, make affixture, be component B.Gained affixture product is brown brown, contains non-volatile part of 70-100 weight %, viscosity 500-600mPas.
Second step: at first press the proportioning weighing of modified polyester resin fat composition, in vibrin, add Resins, epoxy, the propylene oxide benzylic ether, one condensed ethandiol, ethylene glycol, softening agent, trihydroxy methyl propane and solvent composition modified polyester resin, product contain non-volatile part of 70-100 weight %.Again by the described proportioning weighing of above-mentioned first component, in modified poly ester, add color stuffing, dispersion agent, flow agent, defoamer, coupling agent and solvent etc. mixes, methodology is routinely ground after high speed dispersion and is made versicolor mill base and be the first component.In container, stir no caking phenomenon.
The 3rd step respectively packed first component and component B with weight proportion at 1: 1, with two component mixing and stirring, used up in 5 to 6 hours during use.
The production method of polyurethane resin coating of the present invention is owing to first and second go on foot all no coupling product and produce, must aftertreatment, so processing method is simple and convenient, save energy, cost are low.Under normal temperature or low temperature, have good film forming properties, excellent storage stability behind first component and the component B mixing.
The performance of listing polyurethane coating of the present invention (A) and the product P URWW of U.S. Madison chemical industrial company coating (B) below compares
| Performance project | Coating (A) | Coating (B) |
| Solids content | ????70-100％ | ????100％ |
| Snappiness | ????1mm | 2 " plug is 180 ℃ |
| Shock-resistance | ????50cm | 70 in-lbs |
| Cohesive strength | ????≥1．5MPa | |
| Permeability resistance | ????≥1．5MPa | ????0．2MPa |
| Wear resistance | ????≤0．04g | |
| Natural sewage | ????＞3600h | |
| Natural concentration of wastewater medium enlarges 100 times | ????＞2400h | |
| Sulfuric acid | ???20％≥2400h | ????20％2400h |
| Sodium hydroxide | ????5％3600h | Saturated 3600h |
Show that by above-mentioned coating (A) and performance project contrasting data (B) coating that urethane resin of the present invention is made into has excellent corrosion stability, permeability resistance, wear resistance and cohesive strength.
Polyurethane resin coating of the present invention is a kind ofly to have that toxicity is low, the construction application is convenient, it is tough and tensile, wear-resisting to film, cohesive force is strong, permeability resistance good, and the coating of etch resistant properties excellence.Be applicable to the protection against corrosion of sewerage concrete inner wall, also be applicable to the protection and the decoration of industry concrete inside and outside walls such as petrochemical complex, electric power, metallurgy, light industry.
Advantage of the present invention: because the urethane resin that contains is by the affixture that generated by poly methylene poly phenyl poly isocyanate and polyalcohol polyether polyreaction and polyester resin interlinkage reaction generation by modifications such as Resins, epoxy in the coating of the present invention, improved cross-linking density, form tridimensional network, thereby corrosion stability, wear resistance, cohesive strength and the permeability resistance of polyurethane coating have been improved, and low, the construction safety of coating toxicity, can be under normal temperature or cold condition film forming, be applicable to the anticorrosive coating of sewerage concrete inner wall.Polyurethane resin coating of the present invention produces because the first step and second goes on foot all no coupling product in process of production, must aftertreatment, so processing method is easy, and energy conservation, cost is low.
The present invention is further elaborated by following examples, but does not limit the scope of the invention.
The starting material of using in following examples:
800
#Polyester is available from Xinhua Resin Factory, Shanghai
E51 and E44 Resins, epoxy are available from Shanghai Resin Factory
The propylene oxide benzylic ether is available from Shanghai Resin Factory
Poly methylene poly phenyl poly isocyanate is available from Yantai Synthetic Leather General Factory
Dibasic alcohol and trivalent alcohol polyethers N220 polyethers, the N204 polyethers, the N330 polyethers, 3050 polyethers are available from Shanghai Gaoqiao chemical industry three factories
260 solvents are available from the chemical plant of starting an undertaking, Shanghai
Coupling agent 560
#Available from dawn chemical plant, Nanjing
Dispersion agent, flow agent, defoamer are available from China auxiliary agent company limited
The preparation of embodiment 1 modified polyester resin
With 800
#Polyester (containing OH11.8-20%) 10Kg, E51 Resins, epoxy (molecular weight 180-200, oxirane value 0.48-0.54eq/100g) 45Kg, propylene oxide benzylic ether 15Kg, dioctyl phthalate (DOP) 15Kg, a condensed ethandiol 7Kg, ethylene glycol 3Kg, trihydroxy methyl propane 5Kg mixes and forms modified polyester resin, and product contains non-volatile matter 100 weight %, and viscosity is 500mPas.
The preparation of embodiment 2 modified polyester resins
With 800
#Polyester 20Kg, E44 Resins, epoxy (molecular weight 210-240, oxirane value 0.41-0.47eq/100g) 30Kg, propylene oxide benzylic ether 3Kg, dibutyl phthalate 10Kg, one condensed ethandiol 5Kg, ethylene glycol 3Kg, trihydroxy methyl propane 2Kg, 260 solvent 27Kg mix and form modified polyester resin, product contains non-volatile matter weight 70%, and viscosity is 300mPas.
The preparation of embodiment 3 component B affixtures
With poly methylene poly phenyl poly isocyanate (NCO content is 30-32%) 60Kg, add in the reactor, be warming up to 50-60 ℃, begin to drip N220 polyethers (molecular weight 2000 ± 100, hydroxyl value 56 ± 4mgKOH/ gram) 20Kg, 3050 polyethers (molecular weight 3000 ± 200, hydroxyl value 58 ± 4mgKOH/ gram) 10Kg and diphenyl phthalate 10Kg, after dripping off in 2 hours, be warmed up to 75-80 ℃, insulation reaction 6 hours promptly gets affixture after the cooling, product contains non-volatile matter 100 weight %, and viscosity is 600mPas.
The preparation of embodiment 4 component B affixtures
With poly methylene poly phenyl poly isocyanate 45Kg, add in the reactor, be warming up to 50-60 ℃ and begin to drip N204 polyethers (molecular weight 400 ± 40, hydroxyl value 280 ± 20mgKOH/ gram) 15Kg, N330 polyethers (molecular weight 3000 ± 200, hydroxyl value 56 ± 4mgKOH/ gram) 5Kg, dibutyl phthalate 5Kg and 260 solvent 16Kg, propylene glycol monomethyl ether 7Kg, butyl glycol ether 7Kg, 2.5 after hour dripping off, be warmed up to 75-80 ℃, insulation reaction 8 hours promptly gets affixture after the cooling, product contains non-volatile matter 70 weight %, and viscosity is 500mPas.
The preparation of embodiment 5 polyurethane resin coatings
With the modified polyester resin 45Kg that embodiment 1 makes, the green 8Kg of titanium cyanines, ferric oxide bloom 6.5Kg, mica powder 15Kg, process white powder 15Kg, superfine talcum powder 5Kg, dispersion agent 1.5Kg, flow agent 2Kg, defoamer 1Kg, coupling agent 560
#1Kg mixes, and 1200 rev/mins were disperseed 30 minutes, enters three roller runner millings and grinds.Fineness≤70 μ m promptly gets the green slurry of first component.Then the component B affixture that the green slurry of first component and embodiment 3 are made by weight 1: 1 ratio pack respectively, promptly get two canned urethane resin green coatings, solids coatings is 100%, shock-resistance 50cm, cohesive strength 2.0MPa, permeability resistance＞1.5MPa, wear resistance 0.03g.
The preparation of embodiment 6 polyurethane resin coatings
With the modified polyester resin 35Kg that embodiment 2 makes, ferric oxide red powder 15Kg, ferric oxide bloom 3Kg, mica powder 10Kg, process white powder 10Kg, superfine talcum powder 8Kg, dispersion agent 1Kg, flow agent 1Kg, defoamer 0.5Kg, coupling agent 560
#Mix 0.5Kg reach 260 solvent 16Kg, 1200 rev/mins were disperseed 30 minutes, entered three roller runner millings and ground, and fineness≤70 μ m promptly gets first component rust coating.Then the component B affixture that first component rust slurry and embodiment 4 are made by weight 1: 1 ratio pack respectively, promptly get two canned urethane resin rust coating, solids coatings is 80%, shock-resistance 50cm, cohesive strength 1.8MPa, permeability resistance＞1.5 MPa, wear resistance 0.02g.
Claims (7)
1, a kind of polyurethane resin coating is characterized in that the constituent proportioning out of the ordinary of first, second two components that this coating comprises is as follows:
The proportioning of constituent in the first component:
Constituent Weight %
Modified polyester resin paint filler dispersant levelling agent defoamer coupling agent solvent ????30-45 ????12-20 ????25-35 ?0．5-1．5 ????1-2 ????0．5-1 ????0．5-1 ????0-20
The proportioning of constituent in the component B:
Constituent Weight %
Poly methylene poly phenyl poly isocyanate dibasic alcohol polyether-tribasic alcohol polyether plasticizer solvent 40-70 15-25 4-10 5-10 0-20
2,, it is characterized in that modified poly ester resin described in the first component is by descending thing to form with weight %: polyester resin 10-20, Resins, epoxy 30-45 by the described polyurethane resin coating of claim 1, propylene oxide benzylic ether 0-15, one condensed ethandiol 3-9, ethylene glycol 3-9, softening agent 8-15.Trihydroxy methyl propane 2-5, solvent 0-30.
3, by the described polyurethane resin coating of claim 1, it is characterized in that filler is a mica powder described in the first component, process white powder and talcum powder.
4, by the described polyurethane resin coating of claim 1, it is characterized in that the dibasic alcohol polyethers is N220 polyethers or N204 polyethers in the component B, the trivalent alcohol polyethers is N330 polyethers or 3050 polyethers.
5, by claim 1 or 2 described polyurethane resin coatings, it is characterized in that described solvent is 260 solvents, propylene glycol monomethyl ether, one or more in the butyl glycol ether.
6, by claim 1 or 2 described polyurethane resin coatings, it is characterized in that described softening agent is dibutyl phthalate or dioctyl phthalate (DOP).
7, by the production method of the described polyurethane resin coating of claim 1, it is characterized in that the step of this method is as follows:
The first step: by the proportioning weighing of component B constituent described in the claim 1, carry out polyreaction, temperature of reaction 75-80 ℃, reaction times 6-8 hour, get affixture and be component B;
Second step: at first form modified polyester resin, by the proportioning weighing of first component constituent described in the claim 1, mix again by the constituent proportioning weighing of the described modified polyester resin of claim 2, disperse, grind, make versicolor mill base, be the first component;
The 3rd step: first component and component B are respectively packed with weight proportion at 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001165208A CN1137951C (en) | 2000-06-14 | 2000-06-14 | Polyurethane resin paint and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001165208A CN1137951C (en) | 2000-06-14 | 2000-06-14 | Polyurethane resin paint and its production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1278543A true CN1278543A (en) | 2001-01-03 |
| CN1137951C CN1137951C (en) | 2004-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001165208A Expired - Fee Related CN1137951C (en) | 2000-06-14 | 2000-06-14 | Polyurethane resin paint and its production process |
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| Country | Link |
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| CN (1) | CN1137951C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885944A (en) * | 2010-07-19 | 2010-11-17 | 昆山市东亚树脂涂料厂有限公司 | Organic silicon polyester resin coating and production method thereof |
| CN102140305A (en) * | 2011-03-07 | 2011-08-03 | 中国海洋石油总公司 | Polyurethane orange-peel coating |
| CN103360936A (en) * | 2013-06-26 | 2013-10-23 | 南京市荣达树脂有限公司 | Preservative resin coating |
| CN103382379A (en) * | 2012-05-02 | 2013-11-06 | 深圳市明远建材科技有限公司 | Two-component polyurethane adhesive and preparation method thereof |
| CN103897566A (en) * | 2013-11-15 | 2014-07-02 | 东南大学 | High-abrasive resistance coating |
| CN106010098A (en) * | 2016-06-08 | 2016-10-12 | 杭州科能新材料科技有限公司 | Anti-aging paint and film using same |
| CN106833341A (en) * | 2017-01-23 | 2017-06-13 | 南京有志运动场地铺设有限公司 | A kind of court surface layer coating material and preparation method thereof |
| CN109810438A (en) * | 2019-01-16 | 2019-05-28 | 荆晓东 | The preparation method of super hydrophobic polyurethane material |
-
2000
- 2000-06-14 CN CNB001165208A patent/CN1137951C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885944A (en) * | 2010-07-19 | 2010-11-17 | 昆山市东亚树脂涂料厂有限公司 | Organic silicon polyester resin coating and production method thereof |
| CN102140305A (en) * | 2011-03-07 | 2011-08-03 | 中国海洋石油总公司 | Polyurethane orange-peel coating |
| CN102140305B (en) * | 2011-03-07 | 2013-04-24 | 中国海洋石油总公司 | Polyurethane orange-peel coating |
| CN103382379A (en) * | 2012-05-02 | 2013-11-06 | 深圳市明远建材科技有限公司 | Two-component polyurethane adhesive and preparation method thereof |
| CN103382379B (en) * | 2012-05-02 | 2015-06-03 | 深圳市明远建材科技有限公司 | Two-component polyurethane adhesive and preparation method thereof |
| CN103360936A (en) * | 2013-06-26 | 2013-10-23 | 南京市荣达树脂有限公司 | Preservative resin coating |
| CN103897566A (en) * | 2013-11-15 | 2014-07-02 | 东南大学 | High-abrasive resistance coating |
| CN106010098A (en) * | 2016-06-08 | 2016-10-12 | 杭州科能新材料科技有限公司 | Anti-aging paint and film using same |
| CN106010098B (en) * | 2016-06-08 | 2018-07-03 | 杭州科能新材料科技有限公司 | It is coated with the film of anti-aging coating |
| CN106833341A (en) * | 2017-01-23 | 2017-06-13 | 南京有志运动场地铺设有限公司 | A kind of court surface layer coating material and preparation method thereof |
| CN109810438A (en) * | 2019-01-16 | 2019-05-28 | 荆晓东 | The preparation method of super hydrophobic polyurethane material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1137951C (en) | 2004-02-11 |
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