CN104387829A - Polyurethane elastic putty for locomotive repair and preparation method of polyurethane elastic putty - Google Patents
Polyurethane elastic putty for locomotive repair and preparation method of polyurethane elastic putty Download PDFInfo
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- CN104387829A CN104387829A CN201410613927.2A CN201410613927A CN104387829A CN 104387829 A CN104387829 A CN 104387829A CN 201410613927 A CN201410613927 A CN 201410613927A CN 104387829 A CN104387829 A CN 104387829A
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
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Abstract
The invention discloses polyurethane elastic putty for locomotive repair and a preparation method of the polyurethane elastic putty. The polyurethane elastic putty disclosed by the invention consists of a component A, a component B and a component C according to a mass ratio of 4-5 to 1 to 0.03-0.06, wherein the component A refers to a main agent and is a mixture of polyester polyol mixed resin, a defoaming agent, a dispersing agent, a thixotropic agent, a pigment and a filler; the polyester polyol mixed resin is prepared by mixing polyester polyol resin with hydroxyl percentage of 2-6% and polyester polyol resin with hydroxyl percentage of 6-10% according to a mass ratio of 2-4 to 1; the component B is a curing agent and is an aliphatic isocyanate polymer; and the component C is a metal salt drier. The high-elasticity polyurethane putty disclosed by the invention can be used for locomotive repair, and the problems that the coating is cracked and drops when excessively thick putty bears sharp crash, shake and high/low-temperature impact on the surface of a high speed train, and the like are solved. Meanwhile, the putty has excellent weather resistance, so that the service life of a composite coating of the locomotive is prolonged.
Description
Technical field
The present invention relates to technical field of coatings, specifically a kind of locomotive elastic polyurethane putty repairing type and preparation method thereof.
Background technology
Putty is a kind of decoration type material of smooth surface of wall, and it is a kind of thick slurry coating material, is that coating whitewashes front requisite a kind of product.Being coated with by putty to impose on priming paint or be directly coated with imposes on object, can remove coated article rugged defect on the surface.
Polyurethane putty is a kind of widely used putty, and it adopts polyester polyol, vinylformic acid or Synolac as base-material usually, adds mass filler and appropriate tinting pigment is formulated.Due to polyurethane putty, there is good physical and mechanical properties and resistance to chemical corrosion and receive much concern.At home and abroad in coating industry, polyurethane putty consumption accounts for 30% of putty total amount, occupy dominant position.Elastic polyurethane putty is a kind of polyurethane elastomeric materials, it has the feature of good springiness, strong adhesion, solvent-free pollution, ambient cure, easy construction, can be widely used in the dilatation joints such as boats and ships, bridge, road, terrace, its distinctive elasticity all plays certain shock absorption for vibration and deformation.
The routine that current locomotive body surface uses repaiies shaped material for unsaturated polyester alloy putty, has the advantages that type repaiied fast by car load, but large shortcoming of simultaneously enbrittling.Along with popularizing gradually of high-speed railway locomotive, the speed of a motor vehicle reaches more than 300km/h, because foreign matter clashes into vehicle body, high, the along the line temperature Change of car body self vibration frequency is large, coating is easy to produce slight crack or come off, especially at putty thick coating position.
Summary of the invention
Be easy to be hit for the existing conventional putty for express locomotive surface the defect of cracking, the invention provides the surging force of a kind of available buffer foreign matter, vibrations and temperature variation, thus extend the elastic polyurethane putty in coating work-ing life.
The present invention for the technical scheme realizing its object and adopt is:
An elastic polyurethane putty for type repaiied by locomotive, is made up of component A, B component and component C; Component A is host, and B component is solidifying agent, and component C is metal-salt siccative; The mass ratio of component A, B component, component C is 4 ~ 5:1:0.03 ~ 0.06; By mass parts, component A is made up of the polyester polyol hybrid resin of 20 ~ 40 parts, 0.1 ~ 1 part of defoamer, 0.1 ~ 1 part of dispersion agent, 0.2 ~ 5 part of thixotropic agent, 3 ~ 10 parts of pigment, 20 ~ 50 parts of fillers, wherein polyester polyol hybrid resin by hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin be that 2 ~ 4:1 mixes according to mass ratio.
Further, described hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin be all formed by the one in phthalic acid, phthalate anhydride or its ester, hexanodioic acid, halogeno-benzene dioctyl phthalate and polymerization.
Further, described hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin be all be polymerized by lipid acid or di-carboxylic acid (acid anhydrides or ester) and the one in ethylene glycol, propylene glycol, glycol ether, TriMethylolPropane(TMP), tetramethylolmethane.
Further, described hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin be all obtained by hexanodioic acid and ethylene glycol condensation.
Further, described defoamer is the defoamer that this area is commonly used, preferred BYK066, and described dispersion agent is the dispersion agent that this area is commonly used, preferred BYK161, and described thixotropic agent is the thixotropic agent that this area is commonly used, preferred Disparlon 6900-20X.
Further, described pigment is Rutile type Titanium Dioxide.
Further, described filler is process white.
Further, described B component is aliphatic isocyanates polymkeric substance.
Further, described aliphatic isocyanates polymkeric substance is no-solvent type hexamethylene diisocyanate trimer.
Further, described aliphatic isocyanates polymkeric substance is BAYER N3300.
Further, described component C is made up of the polyester polyol hybrid resin of the metal-salt of 5 ~ 10 mass parts, the blue mill base of 0.5 ~ 1 mass parts and 80 ~ 90 mass parts, wherein polyester polyol hybrid resin by hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin be that 2 ~ 4:1 mixes according to mass ratio.
Further, described metal-salt is organotin salt, and described blue mill base is acrylic resin and phthalocyanine blue.
Further, described organic tin salt is the one in di-n-butyltin dilaurate, Bis(lauroyloxy)dioctyltin, toxilic acid di-n-butyl tin, and described acrylic resin is the one in polymethylmethacrylate, polyethyl acrylate, Vinalac 5920.
Prepare the method that the elastic polyurethane putty of type repaiied by above-mentioned locomotive, comprise the following steps:
(1) by hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin mixing, add defoamer, dispersion agent successively, within 5 ~ 10 minutes, obtain resin liquid mixture with the dispersion of the rotating speed of 500 ~ 1000RPM;
(2) under agitation thixotropic agent, pigment, filler are joined in resin liquid mixture successively, raise speed 1000 ~ 1200RPM, maintains mixture temperature at 40 ~ 80 DEG C, activate 0.5 ~ 2 hour;
(3) underspeed to 500 ~ 1000RPM, carry out vacuum outgas, vacuum tightness is-0.1MPa, degassed 5 ~ 10 minutes, obtains putty component A;
(4) by hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin mixing, add metal-salt and blue mill base, be uniformly mixed and obtain component C;
(5) by component A and B component mixing, add component C, blade coating obtains product.
The present invention is with good springiness, the high polyester polyol resin of intensity is as matrix resin, using aliphatic isocyanates polymkeric substance as solidifying agent, add the rapid drying solidification that metal-salt siccative promotes putty, it is good that obtained elastic polyurethane putty has snappiness, sticking power and autohemagglutination power strong, the advantages such as resistance to impact shock is large, confirm by experiment, elastic polyurethane putty of the present invention is when thickness reaches 1mm, impact property can reach 50kgcm, snappiness can reach 5mm, pull open sticking power and can reach more than 5MPa, achieve high thickness, snappiness, the needs of high strength, unsaturated polyester alloy putty can be solved and bear hard hit on bullet train surface, tremble and high/low-temperature impact time the coating cracking that causes and the problem such as to come off, simultaneously, elastic polyurethane putty of the present invention can solidify at normal temperatures, easy construction, with good weathering resistance, thus extend the working life of locomotive compound coating.Production method technique provided by the invention is simple, does not use solvent, energy-conserving and environment-protective.
Embodiment
Embodiment 1
Be that 3:1 is pre-mixed and obtains polyester polyol hybrid resin by ALBODUR901 and SOVERMOL45 according to mass ratio, by mass parts, get 20 parts of polyester polyol hybrid resins, add 0.1 part of BYK066 and 0.1 part BYK161 successively, disperse to obtain resin liquid mixture in 10 minutes with the rotating speed of 500RPM; Under agitation successively 0.2 part of Disparlon6900-20X, 3 parts of Rutile type Titanium Dioxides, 20 parts of process whites are joined in resin liquid mixture, speed-raising is to 1000RPM, rely on stirring heat and condensing works to maintain mixture temperature at 40 DEG C, activate 2 hours; Underspeed to 500RPM, carry out vacuum outgas, vacuum tightness is-0.1MPa, degassed 10 minutes, obtains putty component A; B component is BAYER N3300; By mass parts, 5 parts of organic tin salts, 0.5 part of acrylic resin and phthalocyanine blue, 80 parts of polyester polyol hybrid resins are uniformly mixed and obtain component C; Get 450 kg of component A and the mixing of double centner component, add the component C of 4 kilograms, blade coating obtains product.
Embodiment 2
By the polyester polyol resin of 2% and hydroxyl percentage composition be 6% polyester polyol resin be that 4:1 is pre-mixed and obtains polyester polyol hybrid resin according to mass ratio, by mass parts, get 40 parts of polyester polyol hybrid resins, add 1 part of BYK066 and 1 part BYK161 successively, disperse to obtain resin liquid mixture in 5 minutes with the rotating speed of 1000RPM; Under agitation successively 5 parts of Disparlon 6900-20X, 10 parts of Rutile type Titanium Dioxides, 50 parts of process whites are joined in resin liquid mixture, speed-raising is to 1200RPM, rely on stirring heat and condensing works to maintain mixture temperature at 80 DEG C, activate 0.5 hour; Underspeed to 1000RPM, carry out vacuum outgas, vacuum tightness is-0.1MPa, degassed 5 minutes, obtains putty component A; B component is BAYER N3300; By mass parts, 10 parts of organic tin salts, 1 part of acrylic resin and phthalocyanine blue, 90 parts of polyester polyol hybrid resins are uniformly mixed and obtain component C; Get 500 kg of component A and the mixing of double centner component, add the component C of 6 kilograms, blade coating obtains product.
Embodiment 3
By the polyester polyol resin of 6% and hydroxyl percentage composition be 10% polyester polyol resin be that 2:1 is pre-mixed and obtains polyester polyol hybrid resin according to mass ratio, by mass parts, get 30 parts of polyester polyol hybrid resins, add 0.5 part of BYK066 and 0.5 part BYK161 successively, disperse to obtain resin liquid mixture in 8 minutes with the rotating speed of 800RPM; Under agitation successively 3 parts of Disparlon 6900-20X, 7 parts of Rutile type Titanium Dioxides, 40 parts of process whites are joined in resin liquid mixture, speed-raising is to 1100RPM, rely on stirring heat and condensing works to maintain mixture temperature at 50 DEG C, activate 1 hour; Underspeed to 800RPM, carry out vacuum outgas, vacuum tightness is-0.1MPa, degassed 8 minutes, obtains putty component A; B component is BAYER N3300; By mass parts, 8 parts of organic tin salts, 0.8 part of acrylic resin and phthalocyanine blue, 85 parts of polyester polyol hybrid resins are uniformly mixed and obtain component C; Get 400 kg of component A and the mixing of double centner component, add the component C of 3 kilograms, blade coating obtains product.
Embodiment 4
By the polyester polyol resin of 5% and hydroxyl percentage composition be 7% polyester polyol resin be that 3.5:1 is pre-mixed and obtains polyester polyol hybrid resin according to mass ratio, by mass parts, get 35 parts of polyester polyol hybrid resins, add 0.7 part of BYK066 and 0.6 part BYK161 successively, disperse to obtain resin liquid mixture in 9 minutes with the rotating speed of 700RPM; Under agitation successively 1 part of Disparlon 6900-20X, 5 parts of Rutile type Titanium Dioxides, 30 parts of process whites are joined in resin liquid mixture, speed-raising is to 1100RPM, rely on stirring heat and condensing works to maintain mixture temperature at 60 DEG C, activate 1.5 hours; Underspeed to 900RPM, carry out vacuum outgas, vacuum tightness is-0.1MPa, degassed 6 minutes, obtains putty component A; B component is BAYER N3300; By mass parts, 6 parts of organic tin salts, 0.7 part of acrylic resin and phthalocyanine blue, 85 parts of polyester polyol hybrid resins are uniformly mixed and obtain component C; Get 480 kg of component A and the mixing of double centner component, add the component C of 5 kilograms, blade coating obtains product.
Embodiment 5
By the polyester polyol resin of 4% and hydroxyl percentage composition be 8% polyester polyol resin be that 3.5:1 is pre-mixed and obtains polyester polyol hybrid resin according to mass ratio, by mass parts, get 35 parts of polyester polyol hybrid resins, add 0.7 part of BYK066 and 0.6 part BYK161 successively, disperse to obtain resin liquid mixture in 9 minutes with the rotating speed of 700RPM; Under agitation successively 1 part of Disparlon 6900-20X, 5 parts of Rutile type Titanium Dioxides, 30 parts of process whites are joined in resin liquid mixture, speed-raising is to 1100RPM, rely on stirring heat and condensing works to maintain mixture temperature at 60 DEG C, activate 1.5 hours; Underspeed to 900RPM, carry out vacuum outgas, vacuum tightness is-0.1MPa, degassed 6 minutes, obtains putty component A; B component is BAYER N3300; By mass parts, 6 parts of organic tin salts, 0.7 part of acrylic resin and phthalocyanine blue, 85 parts of polyester polyol hybrid resins are uniformly mixed and obtain component C; Get 430 kg of component A and the mixing of double centner component, add the component C of 5 kilograms, blade coating obtains product.
Embodiment 6
The elastic polyurethane putty embodiment of the present invention 1 prepared and unsaturated polyester alloy putty contrast, and technical indicator is in table 1.
Table 1: the technical indicator contrast of elastic polyurethane putty and unsaturated polyester alloy putty
Note: test thickness 1mm.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly belongs to those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. an elastic polyurethane putty for type repaiied by locomotive, it is characterized in that, is made up of component A, B component and component C; Component A is host, and B component is solidifying agent, and component C is metal-salt siccative; The mass ratio of component A, B component, component C is 4 ~ 5:1:0.03 ~ 0.06; By mass parts, component A is made up of the polyester polyol hybrid resin of 20 ~ 40 parts, 0.1 ~ 1 part of defoamer, 0.1 ~ 1 part of dispersion agent, 0.2 ~ 5 part of thixotropic agent, 3 ~ 10 parts of pigment, 20 ~ 50 parts of fillers, wherein polyester polyol hybrid resin by hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin be that 2 ~ 4:1 mixes according to mass ratio.
2. the elastic polyurethane putty of type repaiied by a kind of locomotive according to claim 1, it is characterized in that, described defoamer is BYK066, and dispersion agent is BYK161, and thixotropic agent is Disparlon 6900-20X.
3. the elastic polyurethane putty of type repaiied by a kind of locomotive according to claim 1, it is characterized in that, described pigment is Rutile type Titanium Dioxide.
4. the elastic polyurethane putty of type repaiied by a kind of locomotive according to claim 1, it is characterized in that, described filler is process white.
5. the elastic polyurethane putty of type repaiied by a kind of locomotive according to claim 1, it is characterized in that, described B component is aliphatic isocyanates polymkeric substance.
6. the elastic polyurethane putty of type repaiied by a kind of locomotive according to claim 5, it is characterized in that, described aliphatic isocyanates polymkeric substance is no-solvent type hexamethylene diisocyanate trimer.
7. the elastic polyurethane putty of type repaiied by a kind of locomotive according to claim 5, it is characterized in that, described aliphatic isocyanates polymkeric substance is BAYER N3300.
8. the elastic polyurethane putty of type repaiied by a kind of locomotive according to claim 1, it is characterized in that, described component C is made up of the polyester polyol hybrid resin of the metal-salt of 5 ~ 10 mass parts, the blue mill base of 0.5 ~ 1 mass parts and 80 ~ 90 mass parts, wherein polyester polyol hybrid resin by hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin be that 2 ~ 4:1 mixes according to mass ratio.
9. the elastic polyurethane putty of type repaiied by a kind of locomotive according to claim 8, it is characterized in that, described metal-salt is organotin salt, and described blue mill base is acrylic resin and phthalocyanine blue.
10. prepare the method that the elastic polyurethane putty of type repaiied by locomotive according to claim 1, it is characterized in that, comprise the following steps:
(1) by hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin mixing, add defoamer, dispersion agent successively, within 5 ~ 10 minutes, obtain resin liquid mixture with the dispersion of the rotating speed of 500 ~ 1000RPM;
(2) under agitation thixotropic agent, pigment, filler are joined in resin liquid mixture successively, raise speed 1000 ~ 1200RPM, maintains mixture temperature at 40 ~ 80 DEG C, activate 0.5 ~ 2 hour;
(3) underspeed to 500 ~ 1000RPM, carry out vacuum outgas, vacuum tightness is-0.1MPa, degassed 5 ~ 10 minutes, obtains putty component A;
(4) by hydroxyl percentage composition be 2 ~ 6% polyester polyol resin and hydroxyl percentage composition be 6 ~ 10% polyester polyol resin mixing, add metal-salt and blue mill base, be uniformly mixed and obtain component C;
(5) by component A and B component mixing, add component C, blade coating obtains product.
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| CN201410613927.2A CN104387829B (en) | 2014-11-03 | 2014-11-03 | A kind of locomotive elastic polyurethane putty repairing type and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105273473A (en) * | 2015-08-17 | 2016-01-27 | 张福辛 | Operating room inner wall putty powder preparation method |
| CN105414496A (en) * | 2015-12-18 | 2016-03-23 | 常州南车汽车零部件有限公司 | Sprue modifying method |
| CN106497018A (en) * | 2016-11-08 | 2017-03-15 | 株洲时代新材料科技股份有限公司 | A kind of Multi-component Polyurethane gap filler and preparation method thereof |
| CN111621185A (en) * | 2020-07-24 | 2020-09-04 | 榕珍新材料科技发展(上海)有限公司 | Sprayable solvent-free two-component polyurethane putty and preparation method and use method thereof |
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| CN102585684A (en) * | 2012-02-24 | 2012-07-18 | 天津德威涂料化工有限公司 | Polyurethane gel coat combination capable of spraying blades of fan conventionally and preparation method of polyurethane gel coat combination |
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| CN102464908A (en) * | 2010-11-16 | 2012-05-23 | 上海麦加涂料有限公司 | Preparation method of weather-resistant elastic polyurethane putty for wind blade |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105273473A (en) * | 2015-08-17 | 2016-01-27 | 张福辛 | Operating room inner wall putty powder preparation method |
| CN105414496A (en) * | 2015-12-18 | 2016-03-23 | 常州南车汽车零部件有限公司 | Sprue modifying method |
| CN106497018A (en) * | 2016-11-08 | 2017-03-15 | 株洲时代新材料科技股份有限公司 | A kind of Multi-component Polyurethane gap filler and preparation method thereof |
| CN106497018B (en) * | 2016-11-08 | 2019-05-03 | 株洲时代新材料科技股份有限公司 | A kind of Multi-component Polyurethane gap filler and preparation method thereof |
| CN111621185A (en) * | 2020-07-24 | 2020-09-04 | 榕珍新材料科技发展(上海)有限公司 | Sprayable solvent-free two-component polyurethane putty and preparation method and use method thereof |
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| CN104387829B (en) | 2016-08-24 |
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