CN108129980B - A kind of city rail vehicle super branched polyurethane finishing coat - Google Patents
A kind of city rail vehicle super branched polyurethane finishing coat Download PDFInfo
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- CN108129980B CN108129980B CN201711427478.2A CN201711427478A CN108129980B CN 108129980 B CN108129980 B CN 108129980B CN 201711427478 A CN201711427478 A CN 201711427478A CN 108129980 B CN108129980 B CN 108129980B
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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
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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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
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The present invention relates to a kind of city rail vehicle super branched polyurethane finishing coats and preparation method thereof.The finishing coat is by acrylated hyperbranched polyester resin, fluorinated silicone modified acrylic resin, pigment, functional filler slurry, auxiliary agent, solvent group into paint vehicle；IPDI isophorone diisocyanate, solvent form curing agent；According to paint vehicle when construction: curing agent=100:40 weight ratio is formulated, for that appropriate diluent can be added and adjust working viscosity convenient for construction；The present invention is a kind of high durable, wear-resistant, scratch-resistant, washability, acid and alkali-resistance, hardness height, the rail traffic vehicles finishing coat that good flame resistance, smog toxicity is low, water resistance and elasticity are all good.The paint adapts to the adverse weather conditions such as various dusts storm, soda acid, humidity, ultraviolet light, adapt to different PH cleaning agent frequent clean, paint film keeps gloss, color difference not to vary widely for a long time, and service life can be up to 10 years or more, much higher than existing 4-6 Qi Yaoqiu.
Description
Technical field
The present invention relates to being related to a kind of polyurethane finish that high durable is wear-resisting, in particular to a kind of city rail vehicle is with hyperbranched
Polyurethane finish and preparation method thereof；
Background technique
In recent years, track transportation industry overall growth dynamic is good, and especially various regions city underground, light rail have obtained greatly
Concern and support, National urban rail traffic vehicles standard runs number from 34415 of 2013, to the end of the year in 2015 on
Risen to 48165, nearly 2 years also with the quantity more than 7000/year in sustainable growth.As rail traffic vehicles are run
The increase of quantity has gradually appeared some problems related to coating in operation, and such as frequently scouring causes coating color difference to become larger, light
Pool reduction etc., various problems also increasingly obtain the attention of client.Owner wishes that topcoat paint is wanted meeting iron mark properties
On the basis of asking, 10-15 can be used and guarantee that apparent condition is good, relative to the requirement for using 4-6 in the past, promoted to two
Times or more.In addition also require finishing coat product according to the testing requirements of GB/T 1768, in the requirement of weight bearing 1kg, 5000 turns of abrasion losses
Lower than 120mg (existing market product presses the condition test, as a result in 180mg or so).
Summary of the invention
That the purpose of the present invention is to overcome the above shortcomings and to provide a kind of wearabilities is good, weather resistance is excellent, convenient for construction,
Hardness of paint film, heat resistance, water resistance etc., other performance reach rail vehicles and are wanted with finishing coat standard (Q/CR 236-2014)
The city rail vehicle asked super branched polyurethane finishing coat and preparation method thereof, it is higher and higher to adapt to urban rail transit vehicles industry
Coating performance requirement.
To achieve the above object, the technical solution that the present invention uses is: a kind of city rail vehicle super branched polyurethane
Finishing coat and preparation method thereof, including paint vehicle and curing agent two parts are characterized in that the described polyurethane paint by following raw material
It is made with step:
(1) each raw material weight proportioning of soup processed of paint vehicle is formed are as follows:
Wherein
Diluent is dimethylbenzene: butyl acetate: the mixed solvent of PMA=1:1:1；
Functional filler slurry is nanocrystalline carbon dust: nano-dispersing agent: acrylated hyperbranched polyester resin: diluent=50:
5:40:5；
(2) weight proportion of each raw material of curing agent is formed are as follows:
45-55 parts of isophorone diisocyanate (IPDI),
20-25 parts of dimethylbenzene,
20-25 parts of butyl acetate；
Each step are as follows:
A, the preparation of functional filler slurry: first acrylated hyperbranched polyester resin is added in a reservoir by weight, and handle
The container tank is placed under dispersion machine, opens dispersion machine, and adjusting revolving speed is 500-800 revs/min, then under stirring successively
Diluent, nanocrystalline carbon dust, nano-dispersing agent is added, after charging, adjusting dispersing speed is 1000-1200 revs/min,
Stirring 10-15 minutes to get pre-dispersed slurry；Then pre-dispersed stock pump is entered in sand mill with diaphragm pump, is ground to fineness≤5 μ
M removes mechanical admixture with the strainer filtering of 120 mesh, functional filler slurry, packed with metal bucket, for use.
B, the preparation of paint vehicle: above-mentioned 12 kinds of raw materials of paint vehicle will be formed by weight ratio, first by hyper-branched polyester propylene
Acid resin and the addition of fluorinated silicone modified acrylic acid polyester resin in a reservoir, and are placed in the container tank under dispersion machine, open dispersion
Machine, adjusting revolving speed is 500-800 revs/min, and diluent, functional filler slurry, pigment are then sequentially added under stirring
After three kinds of raw materials, remaining seven kinds of raw materials are added, after charging, adjusting dispersing speed is 1000-1200 revs/min, is stirred
10-15 minutes are mixed to get pre-dispersed slurry；Then pre-dispersed stock pump is entered in sand mill with diaphragm pump, is ground to fineness≤10 μm,
With the strainer filtering of 120 mesh, remove mechanical admixture, paint vehicle, packed with metal bucket, for use；
C, above-mentioned isophorone diisocyanate (IPDI) curing agent first the preparation of curing agent: is added to container by weight
In cylinder, and the container tank is placed under dispersion machine, opens dispersion machine.Adjusting revolving speed is 500-800 revs/min, is then being stirred
Dimethylbenzene, butyl acetate are added under state, after charging, adjusting dispersing speed is 1000-1200 revs/min, stirs 10-
15 minutes, with the strainer filtering of 120 mesh, curing agent, packed for standby use；
D, the preparation of rail traffic vehicles polyurethane paint: when in use, paint vehicle and curing agent are pressed to the weight of 100:40
Than being mixed, rail traffic vehicles super abrasive weather-proof polyurethane paint, when construction, add appropriate diluent and adjust construction
Viscosity.
The present invention prepares a kind of city rail vehicle super branched polyurethane finishing coat by the above method.
This city rail vehicle is as follows with the mechanism of action of super branched polyurethane finishing coat:
(1), acrylated hyperbranched polyester resin and hydroxyl and isocyanate-reactive in fluorinated silicone modified acrylic resin
Crosslinking curing film forming；
(2), guarantor's color gloss retention that acrylated hyperbranched polyester resin not only has acrylic acid excellent, it is good to have polyester resin
The advantages that flexibility and mechanicalness for getting well, it is provided simultaneously with dissaving polymer bond energy is big, and thermal stability and chemical stability are good etc.
Feature, Hyperbranched Polyester Resin dramatically increase paint film elasticity, and stress when paint film friction is effectively reduced reduces paint film loss, simultaneously
It is with good stability；
(3), fluorinated silicone modified acrylic resin has brilliant weatherability and Bao Se gloss retention, and feel is smooth, stain resistant, resistance to
Scratch resistant is good.After coating film forming is added in fluorinated silicone modified acrylic resin, flexibility, smoothness and the weatherability of paint film have obtained pole
It is big to be promoted, in long-term cleaning friction, is conducive to paint film and further keeps gloss and reduce frictional dissipation.
(4), it is properly added modified Nano crystalline substance carbon dust, using the hardness of its superfine partial size and superelevation, fills paint film hole,
Improve the intensity of itself and rub resistance of paint film；
(5), being properly added fluorine richness levelling agent and organosilicon levelling agent helps have good surface after paint film forms a film
Coefficient of friction can be effectively reduced in smoothness, when paint film stress, and then reduces paint film loss in friction；
(6), the copolymer dispersing agent with acidic-group and the cooperation of high molecular weight wetting dispersing agent are selected, space bit is passed through
Resistance make pigment solution flocculate so make pigment in coating tinting strength, tinting power and form and aspect stablize.
(7), it selects EV-40 UV absorbers 292 light stabilizers of collocation to be used together, it is resistance to for a long time to further increase product
Ageing properties.
(8), it selects the various organic and inorganic pigment of heavy metal free to replace the various pigment of heavy metals exceeding standard, improves coating
Environmental-protecting performance.
(9), curing agent is isophorone diisocyanate (IPDI), and portion of diluent of arranging in pairs or groups improves paint film optical stabilization
Property, in the case where guaranteeing that non yellowing and weatherability are qualified, balanced rigidity and flexibility, and wearability can be improved.
(10), paint solidification forms a film, and resin, auxiliary agent, filler, curing agent interaction and reaction reticulate structure, paint film
Densification, so that coating has good wear-resisting property and ageing properties.
The invention has technical point that have bond energy big after acrylated hyperbranched polyester resin film forming, the good spy of stability
Point, unique branched structure make it have the property of similar tree shaped polymer, compare normal linear polyester, the netted knot of branching
Structure makes paint film finer and close, compare acrylic resin, polyester resin have good flexibility and mechanicalness, paint film by
When scrubbing the external force such as friction influences, its pressure can be effectively reduced.Using the polyester resin after fluorinated silicone modified, then further enhance
The features such as permanent weatherability and Bao Se gloss retention of paint film make paint film have a feel smooth, stain resistant, scratch resistance.Nanometer
The addition of brilliant carbon dust, the hole being further filled between paint film greatly improve the wear-resisting property of paint film.Hyper-branched polyester third
Olefin(e) acid resin molecular weight is small, and dissolubility is good, good with fluorinated silicone modified acrylic resin compatibility, mixture and cured with isocyanates
Agent reacts to form network polymers, and addition auxiliary agent, filler improve paint film weatherability and wear-resisting property together, reduces coefficient of friction,
So that the coating after optimization is able to satisfy rail traffic coating requirement, while crocking resistance and weatherability are also obtained and greatly mention
It rises.
In short, running in adverse circumstances the present invention be directed to urban rail transit vehicles and frequently scrubbing in friction for a long time
Loss of gloss changes colour and a kind of coating for specially researching and developing.New city rail vehicle with super branched polyurethane finishing coat have excellent adhesive force,
The performances such as hardness, gloss, resistance to acid and alkali are even more to have obtained greatly being promoted in terms of rub resistance drain performance and weatherability.
Acrylated hyperbranched polyester resin in the present invention has good flexibility, the paint film after capable of improving coating film forming
Elasticity, stress when reducing paint film friction reduce paint film loss, while it is excellent to assign the good thermal stability of paint film, mechanicalness etc.
Performance.
Silicon-modified polyester resin in the present invention has good flexibility and smoothness, the paint after capable of improving coating film forming
Film elasticity, stress and coefficient of friction when reducing paint film friction, reduces paint film loss, while it is good weather-proof to assign paint film
Property, protect color gloss retention, the excellent properties such as stain resistant.
Fluorinated silicone modified acrylic resin in the present invention can improve hardness of paint film, and promote wearability and ageing-resistant performance,
And improve the workability of coating.
Functional filler in the present invention is mainly made of modified Nano crystalline substance carbon dust, hard with superfine partial size and superelevation
Degree is added in paint film, and strengthening and toughening greatly improves paint film strength, and the wearability of paint film is made to be greatly improved.
Fluorine richness levelling agent and organosilicon levelling agent in the present invention, have good levelling effect, be added coating at
After film, surface of the paint film can be made to have extremely low surface tension and good smoothness, enhance the anti-zoned overstrain of paint film, paint film exists
When scrubbing, coefficient of friction can be effectively reduced, and then reduce paint film loss in friction.
Other auxiliary agents in the present invention have defoaming agent, UV absorbers, light stabilizer etc., and wherein defoaming agent is organosilicon
Class defoaming agent, with strength defoaming effect；Dispersing agent is using high molecular weight wetting dispersing agent and with acidic-group copolymer point
Powder is used cooperatively, and improves the dispersion effect and storage stability of coating system；EV-40 ultraviolet absorber is inhaled than 1130 ultraviolet lights
It receives agent and has more overlength weatherability, being used cooperatively with stabilizer can make paint film improve permanent ageing-resistant performance.
This rail traffic vehicles selects the mixed solvent of dimethylbenzene, butyl acetate, PMA with the diluent in polyurethane paint,
Its polarity is stronger, and solvability is stronger.
This rail traffic vehicles is selected mainly based on white with the pigment in polyurethane paint, can be modulated according to user demand
Color.
Curing agent in the present invention is isophorone diisocyanate (IPDI), is guaranteeing non yellowing and is improving weatherability
In the case of, balanced rigidity and flexibility, and wearability can be improved.
The beneficial effects of the present invention are:
(1), this polyurethane paint (coating) is easily constructed, can a spray mo(u)lding；
(2), coating and other coating matchings are good, rail traffic vehicles paint in general polyurethane inter-coat and
There is good adhesion on epoxy primer (needing to polish), cross cut test is up to 0 grade.
(3), abrasion resistance is excellent.The coating resin containing acrylated hyperbranched polyester, fluorinated silicone modified acrylic resin,
After film forming is dry, toughness elasticity is all good；Two kinds of levelling agents make surface of the paint film smoothness good, and paint film entirety abrasion resistance is excellent
It is different.
(4), good combination property, performance can meet railway parent company Q/CR 236-2014 finishing coat and relevant criterion is wanted
It asks.
(5), simple production process, product excellent storage stability.
This city rail vehicle super branched polyurethane finishing coat high durable, wear-resistant, scratch-resistant, washability, acid and alkali-resistance, hardness
The urban rail transit vehicles finishing coat that height, good flame resistance, smog toxicity are low, water resistance and elasticity are all good.The paint adapts to
Operation under the adverse weather conditions such as various dusts storm, soda acid, humidity, ultraviolet light adapts to frequently clear in different PH cleaning agent
Under the conditions of washing, paint film keeps gloss, color difference not to vary widely for a long time, and service life can be much higher than it up to 10 years or more
The service life of the 4-6 of his product.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
A kind of city rail vehicle super branched polyurethane finishing coat, including paint vehicle and curing agent two parts are characterized in that described
The polyurethane paint is made of following raw material and step:
(1) each raw material weight proportioning of soup processed of paint vehicle is formed are as follows:
Wherein diluent is dimethylbenzene: butyl acetate: the mixed solvent of PMA=1:1:1；
Functional filler slurry is nanocrystalline carbon dust: nano-dispersing agent: acrylated hyperbranched polyester resin: diluent agent=
50:5:40:5；
(2) weight proportion of each raw material of curing agent is formed are as follows:
45-55 parts of isophorone diisocyanate (IPDI),
20-25 parts of dimethylbenzene,
20-25 parts of butyl acetate；
Each step are as follows:
A, the preparation of functional filler slurry: first acrylated hyperbranched polyester resin is added in a reservoir by weight, and handle
The container tank is placed under dispersion machine, opens dispersion machine, and adjusting revolving speed is 500-800 revs/min, then under stirring successively
Diluent, nanocrystalline carbon dust, nano-dispersing agent is added, after charging, adjusting dispersing speed is 1000-1200 revs/min,
Stirring 10-15 minutes to get pre-dispersed slurry；Then pre-dispersed stock pump is entered in sand mill with diaphragm pump, is ground to fineness≤5 μ
M removes mechanical admixture with the strainer filtering of 120 mesh, functional filler slurry, packed with metal bucket, for use.
B, the preparation of paint vehicle: above-mentioned 12 kinds of raw materials of paint vehicle will be formed by weight ratio, first by hyper-branched polyester propylene
Acid resin and the addition of fluorinated silicone modified acrylic acid polyester resin in a reservoir, and are placed in the container tank under dispersion machine, open dispersion
Machine, adjusting revolving speed is 500-800 revs/min, and diluent, functional filler slurry, pigment are then sequentially added under stirring
After three kinds of raw materials, remaining seven kinds of raw materials are added, after charging, adjusting dispersing speed is 1000-1200 revs/min, is stirred
10-15 minutes are mixed to get pre-dispersed slurry；Then pre-dispersed stock pump is entered in sand mill with diaphragm pump, is ground to fineness≤10 μm,
With the strainer filtering of 120 mesh, remove mechanical admixture, paint vehicle, packed with metal bucket, for use；
C, above-mentioned isophorone diisocyanate (IPDI) curing agent first the preparation of curing agent: is added to container by weight
In cylinder, and the container tank is placed under dispersion machine, opens dispersion machine.Adjusting revolving speed is 500-800 revs/min, is then being stirred
Dimethylbenzene, butyl acetate are added under state, after charging, adjusting dispersing speed is 1000-1200 revs/min, stirs 10-
15 minutes, with the strainer filtering of 120 mesh, curing agent, packed for standby use；
D, the preparation of rail traffic vehicles polyurethane paint: when in use, paint vehicle and curing agent are pressed to the weight of 100:40
Than being mixed, rail traffic vehicles super abrasive weather-proof polyurethane paint, when construction, add appropriate diluent and adjust construction
Viscosity.
A kind of city rail vehicle super branched polyurethane finishing coat that the present invention is prepared by the above method.
Note: above-mentioned acrylated hyperbranched polyester resin is BASF AG's production, and fluorinated silicone modified acrylic resin is Wuhan illuminate
Prosperous company produces, and nanocrystalline carbon dust is the production of Foshan Ya Yi Chemical Co., Ltd., dispersing agent, organic silicon defoamer, organosilicon levelling agent
For the production of German BYK company, fluorine richness levelling agent is the production of Taiwan De Qian company, and EV-40 UV absorbers are Taiwan photochemistry forever
Company produces, and 292 light stabilizers are BASF Aktiengesellschaft's production, and IPDI curing agent is that Bayer A.G produces, dimethylbenzene, fourth
Ester, PMA are that the wooden chemical industry in Jiangsu three produces.
This rail traffic vehicles removes the phase for meeting rail vehicles finishing coat standard Q/CR236-2014 with polyurethane paint
It closes outside requiring, main performance testing result is as follows:
Three specific examples of the invention are given below.
Three above example, inspection result reach technical requirements.
Note: above-mentioned acrylated hyperbranched polyester resin is BASF AG's production, and fluorinated silicone modified acrylic resin is Wuhan illuminate
Prosperous company produces, and nanocrystalline carbon dust is the production of Foshan Ya Yi Chemical Co., Ltd., arcylic acid body dispersing agent, macromolecule wetting and dispersing
Agent, organic silicon defoamer, organosilicon levelling agent are the production of BYK company, Germany, and fluorine richness levelling agent is the production of Taiwan De Qian company, EV-
40 UV absorbers are that Optical Chemical Company produces forever in Taiwan, and 292 light stabilizers are BASF Aktiengesellschaft's production, and IPDI curing agent is
For Bayer A.G's production, dimethylbenzene, butyl ester, PMA are that the wooden chemical industry in Jiangsu three produces.
Claims (2)
1. a kind of city rail vehicle preparation method of super branched polyurethane finishing coat, including paint vehicle and curing agent two parts, feature exist
It is made in the polyurethane finish of following raw material and step:
(1) each raw material weight proportioning of soup processed of paint vehicle is formed are as follows:
40-50 parts of fluorinated silicone modified acrylic resins of acrylated hyperbranched polyester resin: 5-15 parts
Functional filler starches 4-6 parts 15-30 parts of pigment
1-2 parts of macromolecule wetting dispersing agent of 0.5-1 parts of organic silicon defoamer
0.8-1.2 parts of EV-40 ultraviolet absorber of 1-2 parts of arcylic acid body dispersing agent
1-3 parts of organosilicon levelling agent of 0.2-0.5 parts of fluorine richness levelling agent
292 10-15 parts of diluents of 1-1.5 parts of light stabilizer
Wherein
Diluent is dimethylbenzene: butyl acetate: the mixed solvent of PMA=1:1:1；
Functional filler slurry is nanocrystalline carbon dust: nano-dispersing agent: acrylated hyperbranched polyester resin: diluent=50:5:40:
5；
(2) weight proportion of each raw material of curing agent is formed are as follows:
45-55 parts of isophorone diisocyanate,
20-25 parts of dimethylbenzene,
20-25 parts of butyl acetate；
The step are as follows:
A, the preparation of functional filler slurry: first acrylated hyperbranched polyester resin is added in a reservoir by weight, and the appearance
Device cylinder is placed under dispersion machine, opens dispersion machine, and adjusting revolving speed is 500-800 revs/min, is then sequentially added under stirring
Diluent, nanocrystalline carbon dust, nano-dispersing agent, after charging, adjusting dispersing speed is 1000-1200 revs/min, stirring
10-15 minutes to get pre-dispersed slurry；Then pre-dispersed stock pump is entered in sand mill with diaphragm pump, is ground to fineness≤5 μm, used
The strainer filtering of 120 mesh, remove mechanical admixture, functional filler slurry, packed with metal bucket, for use；
B, the preparation of paint vehicle: the above-mentioned raw materials of paint vehicle will be formed by weight ratio, first by acrylated hyperbranched polyester resin and fluorine
Fluorine-silicon modified acrylic polyester resin adds in a reservoir, and the container tank is placed under dispersion machine, opens dispersion machine, adjusts revolving speed
It is 500-800 revs/min, after three kinds of diluent, functional filler slurry, pigment raw materials are then sequentially added under stirring,
Remaining seven kinds of raw materials are added, after charging, adjusting dispersing speed is 1000-1200 revs/min, it stirs 10-15 minutes,
Up to pre-dispersed slurry；Then pre-dispersed stock pump is entered in sand mill with diaphragm pump, is ground to fineness≤10 μm, with the filter of 120 mesh
Net filtration, remove mechanical admixture, paint vehicle, packed with metal bucket, for use；
C, the preparation of curing agent: first above-mentioned isophorone diisocyanate curing agent is added in container tank by weight, and handle
The container tank is placed under dispersion machine, opens dispersion machine, and adjusting revolving speed is 500-800 revs/min, is then added under stirring
Dimethylbenzene, butyl acetate, after charging, adjusting dispersing speed is 1000-1200 revs/min, is stirred 10-15 minutes, is used
The strainer filtering of 120 mesh, curing agent, packed for standby use；
D, the preparation of rail traffic vehicles polyurethane paint: when in use, by paint vehicle and curing agent by 100:40 weight ratio into
Row mixing, rail traffic vehicles super abrasive weather-proof polyurethane paint, when construction, adding appropriate diluent, to adjust construction viscous
Degree.
2. a kind of city rail vehicle super branched polyurethane finishing coat of the method as described in claim 1 preparation.
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| CN114854293A (en) * | 2022-06-17 | 2022-08-05 | 中车株洲车辆有限公司 | Polyurea coating and preparation method thereof |
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| CN1454243A (en) * | 2000-07-31 | 2003-11-05 | Ppg工业俄亥俄公司 | Dual cure coating compositions having improved scratch resistance, coated substrates and methods related thereto |
| CN102015935A (en) * | 2008-03-18 | 2011-04-13 | 纳米X有限公司 | Method for the production of a highly abrasion-resistant vehicle paint, vehicle paint, and the use thereof |
| CN102010652A (en) * | 2010-10-28 | 2011-04-13 | 华南理工大学 | Two-component polyurethane coating used for automobile and preparation method thereof |
| CN102559031A (en) * | 2011-12-30 | 2012-07-11 | 江苏创基新材料有限公司 | Organosilicon-modified aqueous polyurethane-acrylate composite coating agent and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454243A (en) * | 2000-07-31 | 2003-11-05 | Ppg工业俄亥俄公司 | Dual cure coating compositions having improved scratch resistance, coated substrates and methods related thereto |
| CN102015935A (en) * | 2008-03-18 | 2011-04-13 | 纳米X有限公司 | Method for the production of a highly abrasion-resistant vehicle paint, vehicle paint, and the use thereof |
| CN102010652A (en) * | 2010-10-28 | 2011-04-13 | 华南理工大学 | Two-component polyurethane coating used for automobile and preparation method thereof |
| CN102559031A (en) * | 2011-12-30 | 2012-07-11 | 江苏创基新材料有限公司 | Organosilicon-modified aqueous polyurethane-acrylate composite coating agent and preparation method thereof |
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