CN105802462B - A kind of MODIFIED PP material polyurethane paint and preparation method thereof - Google Patents

A kind of MODIFIED PP material polyurethane paint and preparation method thereof Download PDF

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CN105802462B
CN105802462B CN201610185780.0A CN201610185780A CN105802462B CN 105802462 B CN105802462 B CN 105802462B CN 201610185780 A CN201610185780 A CN 201610185780A CN 105802462 B CN105802462 B CN 105802462B
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parts
paint
modified
curing agent
preparation
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CN105802462A (en
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邹启强
张丹
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Jiuhua Painting And Fitment Industry Of New Material Co Ltd Zhuzhou City
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Jiuhua Painting And Fitment Industry Of New Material Co Ltd Zhuzhou City
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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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6275—Polymers of halogen containing compounds having carbon-to-carbon double bonds; halogenated polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6279—Polymers of halogen containing compounds having carbon-to-carbon double bonds; halogenated polymers of compounds having carbon-to-carbon double bonds containing fluorine atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
    • C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • 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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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
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  • Engineering & Computer Science (AREA)
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  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
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Abstract

The present invention relates to a kind of MODIFIED PP material polyurethane paints and preparation method thereof.The MODIFIED PP material is to form paint components by low Hydroxylated acrylic resin, fluorocarbon resin, PP adhesion promoter, pigments and fillers, auxiliary agent, solvent with polyurethane paint；Curing agent component is made in HDI dimer, HDI trimer, solvent；By paint vehicle when construction: curing agent is that the weight ratio of 100:25 cooperate, for that suitable diluent can be added and adjust working viscosity convenient for construction；The one kind that is mainly used for obtaining of the invention has the characteristics that adhesive force is good on MODIFIED PP material, hardness of paint film and mechanical performance are good, weather-proof, heat-resisting, water-fast, hydrophobicity is good, adapt to high temperature under high speed rotation, high fever and stand in the case of antifreeze, anti-freeze, anti-condensation the MODIFIED PP material polyurethane paint of low temperature and its technology of preparing, to adapt to the more and more extensive nonmetallic materials Qi Yaoqiu of rail traffic vehicles industry.

Description

A kind of MODIFIED PP material polyurethane paint and preparation method thereof
Technical field
The present invention relates to a kind of MODIFIED PP material polyurethane paints and preparation method thereof；It is a kind of MODIFIED PP material and its The polyurethane paint of similar nonmetallic materials is wanted with adapting to rail traffic vehicles industry more and more extensive nonmetallic materials paint It asks.
Background technique
With the fast development of track transportation industry, existing rail traffic vehicles and its accessory type are more and more, material used Item kind is also more various, now not only there is many kinds of original metal substrates, and there are also more and more non-metal substrates.Novel-section The extensive use of material, nonmetallic materials replace metal material also to become a kind of trend, and the use of MODIFIED PP plastic material is increasingly Extensively, the requirement therefore to paint quality is also higher and higher.The nonmetallic impeller manufactured experimently such as blower company, Lian Cheng group is because its is excellent Different performance is favored by user, will be become it and mainly be produced type, the MODIFIED PP plastic material used, PP plastic basis material from now on Be characterized in that its crystallinity high, surface polarity and surface can it is low, intensity is high, solvent resistant and the advantages that other material corrosions, but There are coating to be difficult to the defects of adhering to, and the requirement to paint is very high, along with the multi items of MODIFIED PP plastics, therefore MODIFIED PP Plastics and its coating are the problem of everybody very pay close attention to, and existing paint has been unable to meet design requirement, to materials such as MODIFIED PPs The adhesive force of matter is poor, rather than metallic impeller use environment is harsh, and frequent high speed rotation has biggish impact force and destruction Power, usually used PP bottom water pretreatment and flame oxidation processing mode can not be up to its requirement, another nonmetallic impeller coating Consider to adapt to antifreeze low temperature, anti-condensation performance and high temperature, high-heat performance.
Summary of the invention
That the purpose of the present invention is to overcome the above shortcomings and to provide a kind of adhesive force is good, convenient for construction, hardness of paint film and machinery Excellent performance, weather-proof, heat-resisting, water-fast, hydrophobicity be good and MODIFIED PP material polyurethane paint and its preparation side of the unification of priming paint finishing coat Method；To adapt to the more and more extensive nonmetallic materials Qi Yaoqiu of rail traffic vehicles industry.
To achieve the above object, the technical solution that the present invention uses is: a kind of MODIFIED PP material polyurethane paint Preparation method, including paint vehicle and curing agent two parts are characterized in that the described polyurethane paint by following raw material and step system At；
(1) each raw material weight proportioning of soup processed of paint vehicle is formed are as follows:
Wherein compounded mix is blanc fixe: micronized talc powder: mica powder: nano zine oxide=4:2:2:2 weight ratio Mixture；Diluent is dimethylbenzene: butyl acetate: the mixed solvent of PMA=5:3:2 weight ratio；
(2) weight proportion of each raw material of curing agent is formed are as follows:
23-27 parts of HDI dimer, 25-35 parts of dimethylbenzene,
23-27 parts of HDI trimer, 15-25 parts of butyl acetate；
Each step are as follows:
A, the preparation of paint vehicle: above-mentioned 12 kinds of raw materials of paint vehicle will be formed by weight ratio, first by low hydroxy acrylic acid tree Rouge and the addition of three fluorine-type FEVE fluorocarbon resins are placed under dispersion machine in container tank, and the container tank, are opened dispersion machine, are adjusted Revolving speed is 500-800 revs/min, and diluent, compounded mix, pigment and PP attachment are then sequentially added under stirring and is made every effort to promote Into after four kinds of raw materials of agent, remaining six kinds of raw material is added, after charging, adjusting dispersing speed is 1000-1200 revs/min Clock stirs 10-15 minutes to get pre-dispersed slurry；Then pre-dispersed stock pump is entered in sand mill with diaphragm pump, be ground to fineness≤ 20 μm discharging, filtered in the strainer of 120 mesh, remove mechanical admixture, paint vehicle, packed with metal bucket, for use；
B, the preparation of curing agent: first by above-mentioned curing agent raw material HDT dimer and HDI trimer add by weight ratio Enter into container tank, and the container tank is placed under dispersion machine, opens dispersion machine.Adjusting revolving speed is 500-800 revs/min, Dimethylbenzene, butyl acetate are added under stirring, after charging, adjusting dispersing speed is 1000-1200 revs/min, is stirred Mix 10-15 minutes, filtered in the strainer of 120 mesh, curing agent, packed for standby use；
C, the preparation of MODIFIED PP material polyurethane paint: when in use, paint vehicle and curing agent are matched by the weight of 100:25 Than being mixed, MODIFIED PP material polyurethane paint.When construction working viscosity can be adjusted with appropriate diluent.
The present invention prepares a kind of MODIFIED PP material polyurethane paint by the above method.
The mechanism of action of this MODIFIED PP material polyurethane paint is as follows:
(1), the hydroxyl in low hydroxy acrylic acid polyurethane resin and aliphatic isocyanates react crosslinking curing film forming.
(2), functional group-OH and-COOH is had on the strand of fluorocarbon resin, and it solidifies with isocyanates cross-linking reaction Film forming.
(3), low Hydroxylated acrylic resin polar group is few, preferable with fluorocarbon resin compatibility, to form stable painting Expect base-material.
(4), PP plastics are equivalent to after part hydrogen atom is substituted by a chlorine atom both in PP with adhesion promoter (CPP), CPP Product, the introducing of chlorine atom make CPP have certain polarity, have good compatibility and interaction force with PP coating；CPP with The mechanism of action between PP ground is that CPP has a molecule weak polar, and molecule is similar to PP molecular structure and the presence of solvent etc. Reason causes two kinds of the high-polymer molecules of CPP and PP mutually to wind, and forms adhesive layer.
(5), the plastic basis materials molecular structure such as fluorocarbon resin and fluorine-containing auxiliary agent and PP is similar, thus according to similar compatibility original Reason, matching performance are improved.
(6), paint solidification forms a film, and resin, auxiliary agent, curing agent interaction and reaction form reticular structure, with substrate knot Structure is similar, to form good mating coating.
The invention has technical point that resin is by low hydroxyl third according to the characteristic of MODIFIED PP material polyurethane paint Olefin(e) acid resin and three two kinds of resin compoundeds of fluorine-type FEVE fluorocarbon resin；The three fluorine-type FEVE fluorocarbon resin and low hydroxy acrylic acid tree Rouge compatibility is good, and mixture reacts to form network polymers with carbimide curing agent, has after solidifying made paint product There is excellent weather resistance, it has excellent adhesive force to MODIFIED PP material, and hardness is high, wear-resisting, antifreeze, self-cleaning is good, dredges It is aqueous excellent.
In short, the present invention be directed to the characteristic of MODIFIED PP plastic basis material with and a kind of MODIFIED PP material for specially researching and developing with poly- Urethane paint, it is well-designed bottom, face unification paint for MODIFIED PP plastic material, i.e., priming paint and finishing coat are combined into a kind of paint；? Without excellent adhesive force, weatherability, hardness and light still can be obtained under the pretreatment of PP bottom water and flame oxidation disposition Pool, paint film is fast light, hot and water erosion, and advanced formula design makes client change traditional construction party with good material Formula becomes easy easily spray, saves artificial, electric power and time.
Compounded mix in the present invention is made of blanc fixe, micronized talc powder, mica powder, nano zine oxide.Precipitating Barium sulfate can increase hardness of paint film, and paint film fillibility can be improved in micronized talc powder, and mica powder is laminated structure, can slow down H2O And O2Infiltration, delay the destruction of paint film, nano zine oxide has catalytic action, while effectively slowing down paint precipitating.
PP adhesion promoter in the present invention, PP plastics are chlorinated polypropylenes with adhesion promoter main component (CPP), with certain polarity, there is preferable compatibility and interaction force with low Hydroxylated acrylic resin, fluorocarbon resin； Since CPP has molecule weak polar, the plastic molecules structures such as molecule and PP are similar, are formed mutually winds under the action of the solvent, Improve substrate adhesive force.
The present invention uses the auxiliary agents such as polyamide wax, dispersing agent, defoaming agent, levelling agent, UV absorbers, light stabilizer, Wherein, after adding polyamide wax, this polyurethane paint has excellent anti-settling property, enhances the anti-zoned overstrain of paint film and reduces paint film Surface tension；Dispersing agent uses high molecular weight block interpolymers, uniform to the dispersion effect and storage stability of coating system Preferably；Levelling agent is fluorine richness levelling agent, and with good levelling effect, and paint film has good handling property, improves and prevent Scribble property and hydrophobicity；Defoaming agent is organic silicon defoaming agent, with strength defoaming effect；UV absorbers and light are stablized Agent can make paint film improve ageing-resistant performance.
Diluent in this MODIFIED PP material polyurethane paint selects the mixed solvent of dimethylbenzene, butyl acetate, PMA, Polarity is stronger, and solvability is stronger.
Pigment in this MODIFIED PP material polyurethane paint is selected mainly based on white, can modulate face according to user demand Color.
Curing agent in the present invention selects HDI dimer, HDI trimer collocation to use, and is guaranteeing xanthochromia and weatherability In the case of, balanced rigidity and flexibility.
The beneficial effects of the present invention are:
(1), this polyurethane paint is easily constructed, the Qi Yici spray formation, be not required to using traditional chemical treatment method and The construction technology of primer spray topcoating again.
(2), coating and ground matching are good, after coating application film forming, paint paint film and MODIFIED PP substrate adhesive force is strong, Cross cut test is up to 0 grade；The coating mating is made using the fluorocarbon resin of good weatherability and the pure acrylic resin of low hydroxy radical content With having excellent weather resistance.
(3), anti-condensation, frost performance are good.The coating uses the materials such as fluorine resin and fluorine richness auxiliary agent, surface Power is low, has hydrophobicity, water and the attachment of impurity difficulty, has certain antigraffiti properties, there is preferable anti-condensation, anti-ice jelly property Energy.
(4), good combination property, performance can meet the related request of iron mark TB/T2393-2001 standard finishing coat.
(5), simple production process, product storage stability are good.
Specific embodiment
A kind of preparation method of MODIFIED PP material polyurethane paint, including paint vehicle and curing agent two parts, are characterized in that institute The polyurethane paint stated 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 compounded mix is blanc fixe: micronized talc powder: mica powder: nano zine oxide=4:2:2:2 weight ratio Mixture；Diluent is dimethylbenzene: butyl acetate: the mixed solvent of PMA=5:3:2 weight ratio；
(2) weight proportion of each raw material of curing agent is formed are as follows:
23-27 parts of HDI dimer, 25-35 parts of dimethylbenzene,
23-27 parts of HDI trimer, 15-25 parts of butyl acetate；
Each step are as follows:
A, the preparation of paint vehicle: above-mentioned 12 kinds of raw materials of paint vehicle will be formed by weight ratio, first by low hydroxy acrylic acid tree Rouge and the addition of three fluorine-type FEVE fluorocarbon resins are placed under dispersion machine in container tank, and the container tank, are opened dispersion machine, are adjusted Revolving speed is 500-800 revs/min, and diluent, compounded mix, pigment and PP attachment are then sequentially added under stirring and is made every effort to promote Into after four kinds of raw materials of agent, remaining six kinds of raw material is added, after charging, adjusting dispersing speed is 1000-1200 revs/min Clock stirs 10-15 minutes to get pre-dispersed slurry；Then pre-dispersed stock pump is entered in sand mill with diaphragm pump, be ground to fineness≤ 20 μm discharging, filtered in the strainer of 120 mesh, remove mechanical admixture, paint vehicle, packed with metal bucket, for use；
B, the preparation of curing agent: first by above-mentioned curing agent raw material HDT dimer and HDI trimer add by weight ratio Enter into container tank, and the container tank is placed under dispersion machine, opens dispersion machine.Adjusting revolving speed is 500-800 revs/min, Dimethylbenzene, butyl acetate are added under stirring, after charging, adjusting dispersing speed is 1000-1200 revs/min, is stirred Mix 10-15 minutes, filtered in the strainer of 120 mesh, curing agent, packed for standby use；
C, the preparation of MODIFIED PP material polyurethane paint: when in use, paint vehicle and curing agent are matched by the weight of 100:25 Than being mixed, MODIFIED PP material polyurethane paint.When construction working viscosity can be adjusted with appropriate diluent.
A kind of MODIFIED PP material polyurethane paint that the present invention is prepared by the above method.
Note: above-mentioned low Hydroxylated acrylic resin is that chemical 's production ESB-1216 hydroxy acrylic acid tree is won in east Rouge, three fluorine-type FEVE fluorocarbon resins are the production of Changshu City Zhong Hao chemical company, and blanc fixe is that millimicro powder body material in Guizhou is limited Company produces, and micronized talc powder is the production of Guangxi Long Guang talcum development corporation, Ltd., and mica powder is that lattice auspicious mining industry in Anhui Province Chuzhou is limited Company produces, and nano zine oxide is the production of Lu Men Chemical Industry Science Co., Ltd, and PP adhesion promoter is that product reputation Optoelectronics Technology in Suzhou has Limit company produces, and polyamide wax is that middle mountain gold rolls into a ball trading company's production, and high molecular weight block interpolymers dispersing agent, organic silicon defoamer are German BYK company produces, and fluorine richness levelling agent is the production of Taiwan De Qian company, and 1130 UV absorbers, 292 light stabilizers are Germany BASF AG produces, and HDT dimer, HDT trimer curing agent are that Bayer A.G produces N75HDT dimer, 3390HDT tri- Aggressiveness, dimethylbenzene, butyl ester, PMA are that is produced from the wooden chemical plant in Jiangsu three.
This MODIFIED PP material removes the correlation for meeting rail vehicles finishing coat standard TB/T2393-2001 with polyurethane paint Outside standard, main performance inspection result is as follows:
Three specific examples of the invention are given below.
Above 3 examples, inspection result reach technical requirements.
Note: above-mentioned low Hydroxylated acrylic resin is that chemical 's production ESB-1216 hydroxy acrylic acid tree is won in east Rouge, three fluorine-type FEVE fluorocarbon resins are the production of Changshu City Zhong Hao chemical company, and blanc fixe is that millimicro powder body material in Guizhou is limited Company produces, and micronized talc powder is the production of Guangxi Long Guang talcum development corporation, Ltd., and mica powder is that lattice auspicious mining industry in Anhui Province Chuzhou is limited Company produces, and nano zine oxide is the production of Lu Men Chemical Industry Science Co., Ltd, and PP adhesion promoter is that product reputation Optoelectronics Technology in Suzhou has Limit company produces, and polyamide wax is that middle mountain gold rolls into a ball trading company's production, and high molecular weight block interpolymers dispersing agent, organic silicon defoamer are German BYK company produces, and fluorine richness levelling agent is the production of Taiwan De Qian company, and 1130 UV absorbers, 292 light stabilizers are Germany BASF AG produces, and HDT dimer, HDT trimer curing agent are that Bayer A.G produces N75HDT dimer, 3390HDT tri- Aggressiveness, dimethylbenzene, butyl ester, PMA are that is produced from the wooden chemical plant in Jiangsu three.

Claims (2)

1. a kind of preparation method of MODIFIED PP material polyurethane paint, including paint vehicle and curing agent two parts are characterized in that described The polyurethane paint be made of following raw material and step:
(1) each raw material weight proportioning of soup processed of paint vehicle is formed are as follows:
13-18 parts of compounded mix, three 21-25 parts of fluorine-type FEVE fluorocarbon resins,
4-6 parts of PP adhesion promoter, 0.4-0.6 parts of polyamide wax,
0.2-0.3 parts of organic silicon defoamer, 0.3-0.5 parts of fluorine richness levelling agent,
1130 0.8-1.2 parts of UV absorbers, 292 1-1.5 parts of light stabilizers,
0.4-0.6 parts of high molecular weight block interpolymers dispersing agent, 15-21 parts of pigment,
Low Hydroxylated acrylic resin 24-25 parts, 10-12 parts of diluent；
Wherein, compounded mix is blanc fixe: micronized talc powder: mica powder: nano zine oxide=4:2:2:2 weight ratio is mixed Close material；Diluent is dimethylbenzene: butyl acetate: the mixed solvent of PMA=5:3:2 weight ratio；
(2) weight proportion of each raw material of curing agent is formed are as follows:
23-27 parts of HDI dimer, 25-35 parts of dimethylbenzene,
23-27 parts of HDI trimer, 15-25 parts of butyl acetate；
Each step are as follows:
A, the preparation of paint vehicle: will form above-mentioned 12 kinds of raw materials of paint vehicle by weight ratio, first by low Hydroxylated acrylic resin and The addition of three fluorine-type FEVE fluorocarbon resins is placed under dispersion machine in container tank, and the container tank, opens dispersion machine, adjusts revolving speed It is 500-800 revs/min, diluent, compounded mix, pigment and PP adhesion promoter is then sequentially added under stirring After four kinds of raw materials, remaining six kinds of raw material is 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≤20 μm Discharging, filtered in the strainer of 120 mesh, remove mechanical admixture, paint vehicle, packed with metal bucket, for use；
B, the preparation of curing agent: first by above-mentioned curing agent raw material HDI dimer and HDI trimer be added to by weight ratio In container tank, and the container tank is placed under dispersion machine, opens dispersion machine, adjusting revolving speed is 500-800 revs/min, is being stirred Dimethylbenzene, butyl acetate are added under state, after charging, adjusting dispersing speed is 1000-1200 revs/min, stirs 10- 15 minutes, filtered in the strainer of 120 mesh, curing agent, packed for standby use；
C, the preparation of MODIFIED PP material polyurethane paint: when in use, by paint vehicle and curing agent by 100:25 weight proportion into Row mixing, MODIFIED PP material polyurethane paint, appropriate diluent adjusting working viscosity can be used when construction.
2. a kind of MODIFIED PP material polyurethane paint of the method as described in claim 1 preparation.
CN201610185780.0A 2016-03-29 2016-03-29 A kind of MODIFIED PP material polyurethane paint and preparation method thereof Active CN105802462B (en)

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CN108165151B (en) * 2017-12-25 2020-04-14 南京长江涂料有限公司 Water-based fluorocarbon modified acrylic polyurethane finish paint and preparation method thereof
CN112143369B (en) * 2020-09-23 2022-09-20 江门市凌云涂料有限公司 High-temperature-resistant UV (ultraviolet) coating and preparation method and application thereof
CN114196311B (en) * 2021-12-28 2022-05-31 株洲市九华新材料涂装实业有限公司 Modified polyurethane thick paint for glass fiber reinforced plastic material for rail transit and preparation method thereof
CN115584195B (en) * 2022-10-11 2023-09-29 浙江省产品质量安全科学研究院 Bicomponent coating for helmet and preparation method thereof
CN116082937A (en) * 2022-12-05 2023-05-09 株洲市九华新材料涂装实业有限公司 Polyurethane frosted finish paint for rail transit vehicle parts and preparation method and application thereof

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