CN103965757A - Solvent-free bicomponent road marking paint - Google Patents
Solvent-free bicomponent road marking paint Download PDFInfo
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- CN103965757A CN103965757A CN201310041922.2A CN201310041922A CN103965757A CN 103965757 A CN103965757 A CN 103965757A CN 201310041922 A CN201310041922 A CN 201310041922A CN 103965757 A CN103965757 A CN 103965757A
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Abstract
The invention discloses a solvent-free bicomponent road marking paint, which comprises 90wt% of main paint and 10wt% of a curing agent. According to a weight ratio, the formula of the main paint involves: 30-35% of polyaspartic ester polyurea resin, 1.5-2.8% of an anti-settling agent, 0.2-0.4% of a dispersant, 0.2-0.3% of a defoaming agent, 0.1-0.2% of a wetting agent, 15-20% of a pigment, 10-15% of filler, 20-25% of 400-mesh spherical quartz sand, and 5-8% of hollow glass microsphere S38HS. The curing agent is an HDI trimer. The invention also discloses a preparation method and a construction method for the solvent-free bicomponent road marking paint. The solvent-free bicomponent road marking paint adopting the technical scheme involved in the invention is free of organic volatile solvent, and has the advantages of environmental protection, safety, high wear resistance, good reflection, strong adhesion, simple construction process, and good weatherability.
Description
Technical field
The present invention relates to technical field of coatings, particularly solvent-free pair of component road mark paint road mark paint of a kind of Polyaspartic Polyurea.
Background technology
Road mark paint also claims traffic paint, is painted on road surface for specification road traffic, and the road mark paint that contains light reflecting material can also guide driver's driving at night.At present road mark paint mainly contains four kinds of water soluble acrylic acid road mark paint, double component solvent-free vinylformic acid road mark paint, solvent-type acrylic road mark paint and heat molten type petroleum resin based road mark paints.
Water-based road guide line paint occurs as the substitute of solvent-borne type road mark paint, and its organic solvent emission amount is lower.Its special benefits is that it is taking water as solvent, thereby can realize " cleaner production ", and environmentally safe, meets the requirement of environmental protection.The bonding base-material of water-based road guide line paint is the acrylic resin of oil-in-water type substantially.This class paint is generally that application emulsion polymerization is synthetic with resin, needs to add a large amount of hydrophilic emulsifying agents in building-up process, causes the ACRYLIC EMULSION water tolerance after synthesizing not good.If resin glass excess Temperature after synthetic, needs to add a large amount of softening agent or film coalescence aid to assist film forming, even if the common construction thickness of water-based road guide line paint can not exceed 200 microns like this; If resin glass temperature is too low after synthetic, have a strong impact on wear resistance and the quick-drying of paint itself.So also there is no the use of water-based road guide line paint at present on urban road, just in the sideline of motorway seldom partly, just partly used owing to being seldom subject to wheel load.
Two-pack road mark paint refers to that adding peroxide initiator by two kinds of different components mixes with certain proportion, is coated in concurrent biochemical reaction on road surface and curing cross-linked film forming.Two-pack road mark paint has increased the compactness of film, has improved physical strength and snappiness, and cement and bituminous pavement are had to good sticking power, and the usage period is long, not yielding under not easy to crack at low temperatures, high temperature.Common two-pack road mark paint is filmogen mainly with vinylformic acid greatly.But two component paints are all generally using unsaturated acrylate monomer (such as methyl methacrylate and butyl acrylate) as reactive thinner.But the solvent-borne type monomer that this class participates in reaction is not only inflammable and explosive and human body is had to certain toxicity.Danger as the superoxide of two component road mark paint initiators is especially large, must serve as the 3rd component and properly preserve separately.
Solvent-borne type road mark paint refers at normal temperatures constructs, and by the signal paint of solvent evaporates film forming, its filmogen adopts thermoplastic synthetic resin more, and as chlorinated rubber, acrylate resin etc., relatively more conventional is solvent type acrylic resin class at present.This general usage period of class paint is short, wears no resistance, and time of drying is long, and has a large amount of organic solvents to evaporate in atmosphere, causes environmental pollution, therefore less use on urban road and motorway.
Hot-melting road mark paint is that solids component is high by 100%, is powder cake mass under its normal temperature taking natural resin or petroleum resin synthetic materials as filmogen, and the liquid that heat fused is flow state is cooled to the solid rete being bonded on road surface after coating.It is short that it has time of drying, and road pavement sticking power is good, the features such as weathering resistance, good endurance, environmentally safe.But hot-melting type paint is because the second-order transition temperature of petroleum resin is lower and film is thicker, the granulated glass sphere that plays reflection action easy paint film inside up to one's neck in after being rolled by wheel, causes evening graticule reflective to weaken even and lose, and particularly reflective does not almost have rainy night.At urban road, the easy softening sticky ash impact in summer of hot-melting road mark paint is attractive in appearance, and the skin friction coefficient of hot melt road marking paint is lower, causes rainy day vehicle slip, and pedestrian easily slips when particularly the elderly crosses zebra stripes.
Except above four kinds of road mark paints, also has Spray Polyurea Elastomer road mark paint.The most basic characteristic of polyurea materials is exactly quick-drying, waterproof, wear-resisting etc.Polyurea coating is pliable and tough has a surplus, rigidity is pure, its densification, continuously, without seam, the infiltration of completely isolated moisture in air and oxygen.Polyureas is made up of isocyanic ester and two components of aminocompound, the chemically reactive of these two components is high, rapid reaction instantaneous solidification after mixing, therefore it needs special spraying equipment effectively to control the fast chemical reaction of two of polyureas components, must will precisely measure, steadily carry, evenly mix, moment atomization and clean immediately that supervisor completed in moment, Collaboration, application polyurea materials out just can reach good physicals and smooth apparent state.
Compared with traditional road mark paint, the technical superiority of polyureas road mark paint is mainly manifested in the following aspects: (1) fast setting.Several minutes can reach walking intensity, after construction, can come into operation immediately.(2) can under low temperature and wet environment, construct.(3) very admittedly contain.(4) once construction can reach thickness requirement, has overcome the disadvantage of the necessary multiple tracks construction of traditional floor paint technique.(5) wear-resistant, shock resistance physicals is high, cracky not under temperature alternating and external impacts effect, the place that is particularly suitable for running fork truck, automobile, heavy walkie fork lift truck.
Although Spray Polyurea Elastomer road mark paint performance is very excellent, also has deficiency, is mainly manifested in: (1) needs specific equipment construction.Construction needs special mixing equipment, needs to be equipped with professional construction personnel, therefore the widespread use of Spray Polyurea Elastomer road mark paint is greatly limited simultaneously.2) adhere to not good.Because the speed of response of polyureas is too fast, poor to the wetting capacity of basal plane, easily the sticking power of impact and basal plane, causes the combination of interlayer undesirable.3) require strict for workmen's safeguard procedures.In spraying application process, due to the existence of isocyanate group (NCO) and liquid amine etc., still belong to poisonous, have taste and the strong material of pungency.For this reason, in the time carrying out the construction of spray polyurea gonosome road mark paint, workmen must wear anti-poison respirator, safety glasses, rubber gloves, wears protective clothing and footwear etc., wraps up in tightly.
Summary of the invention
In order to address the above problem, the invention provides solvent-free pair of component road mark paint of a kind of Polyaspartic Polyurea.The technical problem to be solved in the present invention is: provide one not containing organic solvent flashing; Strong adhesion, resistance to abrasion, reflective are all good; Soak time is long, and construction technology is simple, harmless to workmen; The road mark paint that weathering resistance is outstanding.
In order to reach technical purpose of the present invention, the technical scheme in the present invention is: a kind of solvent-free pair of component road mark paint, it is characterized in that, and comprise the main paint of 90% weight part and the solidifying agent of 10% weight part, described main paint formula is by weight:
Polyaspartic Polyurea resin 30 ~ 35%;
Anti-settling agent 1.5 ~ 2.8%;
Dispersion agent 0.2 ~ 0.4%;
Defoamer 0.2 ~ 0.3%;
Wetting agent 0.1 ~ 0.2%;
Pigment 15 ~ 20%;
Filler 10 ~ 15%;
400 order global quartz powders 20 ~ 25%;
Hollow glass micro-ball S38HS 5 ~ 8%;
Described solidifying agent is: HDI tripolymer.
In such scheme, described anti-settling agent comprises that weight ratio formula is: organobentonite 0.5 ~ 0.8%, polymeric amide cured 1 ~ 2%; Described dispersion agent is poly carboxylic acid ammonium salt; Described defoamer is silicone antifoam agent; Described wetting agent is organosilicon wetting agent; Described pigment is Rutile type Titanium Dioxide; Described filler is 800 order coarse whitings.
The present invention also comprises the preparation method of solvent-free pair of component road mark paint, comprises the following steps:
A. the pre-mixing of Polyaspartic Polyurea resin and anti-settling agent, dispersion agent, wetting agent: Polyaspartic Polyurea resin, anti-settling agent, dispersion agent, wetting agent are added in reactor successively by described formula rate, stirring at low speed is until mix, and mixing speed is 200 ~ 300 revs/min;
B. the dispersion of face, filler: pigment, filler, 400 order spherical quartz are added successively according to described formula rate in the mixture of steps A gained, and high-speed stirring is until mix, and mixing speed is 900 ~ 1100 revs/min; Then stirring velocity is adjusted to middling speed, mixing speed is 400 ~ 600 revs/min, slowly adds the hollow glass micro-ball S38HS of described formula rate, stirs 20 ~ 30 minutes, obtains main paint;
C. the froth breaking of main paint and filling: by the main paint stirring at low speed of step B gained, mixing speed is 200 ~ 300 revs/min, until bulla wherein and microvesicle all disappear, the volume of main paint no longer changes; Then utilize filling machine to pack rapidly sealed vessel rear seal-cover in the main paint after froth breaking;
D. solidifying agent is filling: under the prerequisite of nitrogen protection, HDI tripolymer is utilized to the rapid sealed packaging of filling machine.
In such scheme, in described step C, the froth breaking process of main paint is to carry out under vacuum environment.
The present invention also comprises the constructional method of solvent-free pair of component road mark paint, it is characterized in that, comprises the following steps:
A. main paint and solidifying agent are mixed: the weight proportion of main paint and solidifying agent is 9:1, and solidifying agent is poured in main paint, mixes ten minutes;
B. the construction of solvent-free pair of component road mark paint: use road mark paint preparation of construction, solvent-free pair of component road mark paint coated to ground, the engineering time is no more than 1 hour.
Solidifying agent and main paint can slowly react, and along with the prolongation of time, viscosity of the present invention will increase gradually, so the engineering time should be controlled within an hour, avoid the excessive the present invention of causing of its viscosity no longer can use.
In such scheme, described road mark paint preparation of construction is cylinder or spraying equipment.
The invention provides one using Polyaspartic Polyurea as solvent-free pair of component road mark paint base-material, and use the technical scheme of HDI tripolymer as the solidifying agent of Polyaspartic Polyurea.The chemical equation of polyaspartic ester and isocyanate reaction is as follows:
Polyaspartic Polyurea is a kind of Novel aliphatic, long response time, the high-performance coating material that polyureas industrial circle occurs, is called as third generation polyureas.Polyaspartic ester is actually a kind of secondary aliphatic amine, amino in its molecular structure, in encirclement in Coronal balk ring border, space, by the steric hindrance density of the crown structure in space in its molecule of artificial increase, can synthesize the Novel series polyurea materials of gel time from several minutes by several hours.Therefore, the present invention has following characteristics: (1) technique is simple, and polyurea materials is in the past because reaction is fast, instantaneous solidification, and the construction of essential employing spraying device special, is greatly limited the widespread use of Spray Polyurea Elastomer paint; And the solvent-free pair of component road mark paint of the present invention slowed down speed of response through state-of-the-art technology, can manual Cylinder coating brush or with common spray gun spraying use, simplify widely technique, use more easy; (2) weathering resistance is outstanding, overcome in the past aromatic polyureas elastomerics ageing-resistant performance undesirable, under uviolizing oxidizable generation quinonimine and the shortcoming of xanthochromia, its good weatherability, to UV stable, long-term outdoor use nondiscoloration; (3) sticking power is superior.Spray Polyurea Elastomer is in the past because speed of response is too fast, thereby existence is poor to the wetting capacity of basal plane, easily the sticking power of impact and basal plane.And Polyaspartic Polyurea road mark paint speed of response slows down, therefore there is better sticking power with ground; (4) high resilience.Coating is pliable and tough has a surplus, rigidity is pure, can be made into rigidity, elasticity, the multiple kinds of snappiness; Have than the better cracking resistance of other various road mark paints, impact resistance; (5) superpower wear-resistant.Spray Polyurea Elastomer has the title of " abrasive rubber ", and the present invention has inherited this advantage, and its wear resisting property is 3-5 times of epoxy; (6) solid containing up to 100%, non-volatility organic solvent, safety non-toxic, low-carbon environment-friendly: (7) quick-drying, reduction of erection time greatly; (8) chemical mediator-resitant property is good, coating densification, continuously, without seam, the infiltration that can completely cut off moisture in air and oxygen completely, anticorrosion and barrier propterty excellence.
Meanwhile, the present invention uses organobentonite and polyamide wax to arrange in pairs or groups as anti-settling agent, can make filler have better result of prevention; The present invention uses high strength hollow glass micro-ball and spherical quartz, can increase on the one hand anti-skid and the reflective of paint, can increase on the other hand the anti-settling property of filler systems.
To sum up, advantage of the present invention and beneficial effect are: not containing organic solvent flashing, and environmental protection, safety, wear resistance is high, reflective good, strong adhesion, and construction technology is simple, and weathering resistance is good.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
The raw material using in following examples is on market to be buied, wherein: the supplier of Polyaspartic Polyurea resin is for flying upward Chemical Co., Ltd. in Shenzhen; The cured supplier of organobentonite and polymeric amide is promise reputation chemistry; The supplier of poly carboxylic acid ammonium salt is DOW Chemical; The supplier of silicone antifoam agent is for watt digesting; The supplier of organosilicon wetting agent is for watt digesting; The supplier of Rutile type Titanium Dioxide is BASF; 800 order coarse whitings are commercially available home products; 400 order global quartz powders are commercially available home products; The supplier of hollow glass micro-ball S38HS is 3M company; The trimerical supplier of HDI is Bayer novel material.
Embodiment 1
30kg Polyaspartic Polyurea resin, organobentonite 0.8kg, the cured 1.5kg of polymeric amide, poly carboxylic acid ammonium salt 0.2kg, silicone antifoam agent 0.3kg, organosilicon wetting agent 0.2kg are added in reactor successively, use dispersion machine stirring at low speed, dispersing speed is 200 revs/min, until mix.
Rutile type Titanium Dioxide 20kg, 800 order coarse whiting 10kg, 400 order spherical quartz 22kg are added in aforesaid reaction vessel successively, the rotating speed of dispersion machine is adjusted to 1000 revs/min, stir until mix; Then the stirring velocity of dispersion machine is adjusted to middling speed, rotating speed is 500 revs/min, slowly adds hollow glass micro-ball S38HS5kg, stirs 20 minutes, obtains main paint;
By above-mentioned main paint stirring at low speed, dispersing speed is 200 revs/min, until bulla wherein and microvesicle all disappear, the volume of main paint no longer changes; Then utilize filling machine to pack rapidly sealed vessel rear seal-cover in the main paint after froth breaking;
Under the prerequisite of nitrogen protection, HDI tripolymer 10kg is utilized to the rapid sealed packaging of filling machine;
When construction, the HDI tripolymer of 10kg is poured in main paint, mixed ten minutes;
On road, set the mould that applies road surface paint, use cylinder roller coating construction in mould, the above-mentioned solvent-free pair of component road mark paint mixing coated to ground, cylinder twice repeatedly, the engineering time is 55 minutes.
After testing, approximately 1 hour time of drying, wear resistance is greater than wheel load 10000 times; Detect through xenon lamp aging test, weathering resistance is greater than 2000 hours.
Embodiment 2
33kg Polyaspartic Polyurea resin, organobentonite 0.5kg, the cured 1kg of polymeric amide, poly carboxylic acid ammonium salt 0.2kg, silicone antifoam agent 0.2kg, organosilicon wetting agent 0.1kg are added in reactor successively, use dispersion machine stirring at low speed, dispersing speed is 250 revs/min, until mix.
Rutile type Titanium Dioxide 15kg, 800 order coarse whiting 15kg, 400 order spherical quartz 20kg are added in aforesaid reaction vessel successively, the rotating speed of dispersion machine is adjusted at a high speed, dispersing speed is 900 revs/min, stirs until mix; Then the stirring velocity of dispersion machine is adjusted to middling speed, dispersing speed is 400 revs/min, slowly adds hollow glass micro-ball S38HS5kg, stirs 30 minutes, obtains main paint;
Aforesaid reaction vessel is pumped into negative 0.5 normal atmosphere, uses the main paint of dispersion machine stirring at low speed simultaneously, the rotating speed of dispersion machine is 250 revs/min, until bulla wherein and microvesicle all disappear, the volume of main paint no longer changes; Then utilize filling machine to pack rapidly sealed vessel rear seal-cover in the main paint after froth breaking;
Under the prerequisite of nitrogen protection, HDI tripolymer 10kg is utilized to the rapid sealed packaging of filling machine;
When construction, the HDI tripolymer of 10kg is poured in main paint, mixed ten minutes;
By in above-mentioned solvent-free pair of component road mark paint injection channel marking lines spraying machine, the pressure that spraying machine is set is: 0.5MPa, the width that spraying sector size is rule according to required ground: coating load determines according to the thickness of required film.Use spraying machine that marking paint is sprayed to ground, repeatedly spray 2 times, the engineering time is 45 minutes.
After testing, approximately 50 minutes time of drying, wear resistance is greater than wheel load 10000 times; Detect through xenon lamp aging test, weathering resistance is greater than 2000 hours.
Embodiment 3
30kg Polyaspartic Polyurea resin, organobentonite 0.5kg, the cured 1kg of polymeric amide, poly carboxylic acid ammonium salt 0.2kg, silicone antifoam agent 0.2kg, organosilicon wetting agent 0.1kg are added in reactor successively, use dispersion machine stirring at low speed, dispersing speed is 300 revs/min, until mix.
Rutile type Titanium Dioxide 15kg, 800 order coarse whiting 10kg, 400 order spherical quartz 25kg are added in aforesaid reaction vessel successively, the rotating speed of dispersion machine is adjusted at a high speed, dispersing speed is 1100 revs/min, stirs until mix; Then the stirring velocity of dispersion machine is adjusted to middling speed, dispersing speed is 600 revs/min, slowly adds hollow glass micro-ball S38HS 8kg, stirs 20 minutes, obtains main paint;
By above-mentioned main paint stirring at low speed, dispersing speed is 200 revs/min, until bulla wherein and microvesicle all disappear, the volume of main paint no longer changes; Then utilize filling machine to pack rapidly sealed vessel rear seal-cover in the main paint after froth breaking;
Under the prerequisite of nitrogen protection, HDI tripolymer 10kg is utilized to the rapid sealed packaging of filling machine;
When construction, the HDI tripolymer of 10kg is poured in main paint, mixed ten minutes;
On road, set the mould that applies road surface paint, use cylinder roller coating construction in mould, the above-mentioned solvent-free pair of component road mark paint mixing coated to ground, cylinder three times repeatedly, the engineering time is 1 hour.
After testing, approximately 1.2 hours time of drying, wear resistance is greater than wheel load 10000 times; Detect through xenon lamp aging test, weathering resistance is greater than 2000 hours.
Embodiment 4
35kg Polyaspartic Polyurea resin, organobentonite 0.5kg, the cured 2kg of polymeric amide, poly carboxylic acid ammonium salt 0.4kg, silicone antifoam agent 0.2kg, organosilicon wetting agent 0.1kg are added in reactor successively, use dispersion machine stirring at low speed, dispersing speed is 250 revs/min, until mix.
Rutile type Titanium Dioxide 15kg, 800 order coarse whiting 10kg, 400 order spherical quartz 21.8kg are added in aforesaid reaction vessel successively, the rotating speed of dispersion machine is adjusted at a high speed, dispersing speed is 1000 revs/min, stirs until mix; Then the stirring velocity of dispersion machine is adjusted to middling speed, dispersing speed is 500 revs/min, slowly adds hollow glass micro-ball S38HS 5kg, stirs 25 minutes, obtains main paint;
Aforesaid reaction vessel is pumped into negative 0.5 normal atmosphere, uses the main paint of dispersion machine stirring at low speed simultaneously, dispersing speed is 200 revs/min, until bulla wherein and microvesicle all disappear, the volume of main paint no longer changes; Then utilize filling machine to pack rapidly sealed vessel rear seal-cover in the main paint after froth breaking;
Under the prerequisite of nitrogen protection, HDI tripolymer 10kg is utilized to the rapid sealed packaging of filling machine;
When construction, the HDI tripolymer of 10kg is poured in main paint, mixed ten minutes;
By in above-mentioned solvent-free pair of component road mark paint injection channel marking lines spraying machine, the pressure that spraying machine is set is 0.5MPa, sprays sector size and is determined by required roadmarking width, and coating load is determined by required coating thickness.Use spraying machine that marking paint is sprayed to ground, spray 1 time, the engineering time is 30 minutes.
After testing, approximately 40 minutes time of drying, wear resistance is greater than wheel load 10000 times; Detect through xenon lamp aging test, weathering resistance is greater than 2000 hours.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a solvent-free pair of component road mark paint, is characterized in that, comprises the main paint of 90% weight part and the solidifying agent of 10% weight part, and described main paint formula is by weight:
Polyaspartic Polyurea resin 30 ~ 35%;
Anti-settling agent 1.5 ~ 2.8%;
Dispersion agent 0.2 ~ 0.4%;
Defoamer 0.2 ~ 0.3%;
Wetting agent 0.1 ~ 0.2%;
Pigment 15 ~ 20%;
Filler 10 ~ 15%;
400 order global quartz powders 20 ~ 25%;
Hollow glass micro-ball S38HS5 ~ 8%;
Described solidifying agent is: HDI tripolymer.
2. solvent-free pair of component road mark paint according to claim 1, is characterized in that, described anti-settling agent comprises that weight ratio formula is: organobentonite 0.5 ~ 0.8%, polymeric amide cured 1 ~ 2%; Described dispersion agent is poly carboxylic acid ammonium salt; Described defoamer is silicone antifoam agent; Described wetting agent is organosilicon wetting agent; Described pigment is Rutile type Titanium Dioxide; Described filler is 800 order coarse whitings.
3. the preparation method of solvent-free pair of component road mark paint according to claim 1 and 2, is characterized in that, comprises the following steps:
A. the pre-mixing of Polyaspartic Polyurea resin and anti-settling agent, dispersion agent, wetting agent: Polyaspartic Polyurea resin, anti-settling agent, dispersion agent, wetting agent are added in reactor successively by described formula rate, stirring at low speed is until mix, and mixing speed is 200 ~ 300 revs/min;
B. the dispersion of face, filler: pigment, filler, 400 order spherical quartz are added successively according to described formula rate in the mixture of steps A gained, and high-speed stirring is until mix, and mixing speed is 900 ~ 1100 revs/min; Then stirring velocity is adjusted to middling speed, mixing speed is 400 ~ 600 revs/min, slowly adds the hollow glass micro-ball S38HS of described formula rate, stirs 20 ~ 30 minutes, obtains main paint;
C. the froth breaking of main paint and filling: by the main paint stirring at low speed of step B gained, mixing speed is 200 ~ 300 revs/min, until bulla wherein and microvesicle all disappear, the volume of main paint no longer changes; Then utilize filling machine to pack rapidly sealed vessel rear seal-cover in the main paint after froth breaking;
D. solidifying agent is filling: under the prerequisite of nitrogen protection, HDI tripolymer is utilized to the rapid sealed packaging of filling machine.
4. the preparation method of solvent-free pair of component road mark paint according to claim 3, is characterized in that, in described step C, the froth breaking process of main paint is to carry out under vacuum environment.
5. the constructional method of arbitrary solvent-free pair of component road mark paint according to claim 1 and 2, is characterized in that, comprises the following steps:
A. main paint and solidifying agent are mixed: the weight proportion of main paint and solidifying agent is 9:1, and solidifying agent is poured in main paint, mixes ten minutes;
B. the construction of solvent-free pair of component road mark paint: use road mark paint preparation of construction, solvent-free pair of component road mark paint coated to ground, the engineering time is no more than 1 hour.
6. the constructional method of solvent-free pair of component road mark paint according to claim 5, is characterized in that, described road mark paint preparation of construction is cylinder or spraying equipment.
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| CN111019497A (en) * | 2019-12-23 | 2020-04-17 | 复旦大学 | High-adhesion water-based polyurea colored paint and preparation method thereof |
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