CN105419599B - A kind of high solid aliphatic acrylic polyurethane coating and preparation method - Google Patents
A kind of high solid aliphatic acrylic polyurethane coating and preparation method Download PDFInfo
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- CN105419599B CN105419599B CN201510881871.3A CN201510881871A CN105419599B CN 105419599 B CN105419599 B CN 105419599B CN 201510881871 A CN201510881871 A CN 201510881871A CN 105419599 B CN105419599 B CN 105419599B
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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
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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Abstract
The invention discloses a kind of high solid aliphatic acrylic polyurethane coating and preparation methods, including individually pack component A, B component and C components.Component A：1) preparation of 20% polyamide wax slurry auxiliary agent；2) preparation of master grind：High solid low viscosity Hydroxylated acrylic resin, wetting agent, dispersant, triethoxy ethyl propionate, titanium dioxide, spherical glass beads, carbon black, 154L Huangs, swelling scholar, dimethylbenzene：3) paint：Ultra-violet absorber, 20% polyamide wax slurry auxiliary agent, levelling agent, antifoaming agent, butyl acetate are up to component A.B component：Aliphatic isocyanates tripolymer is up to B component.C components：Butyl acetate, PMA, S-100 are uniformly mixed to get C components.Environmentally friendly, the saving energy of the invention, substantially reduces toxic and harmful gas discharge, energy-saving to realize；The application period is short, efficient.One time application thickness of dry film is high, reduces application road number, improves coating efficiency, reduce labor intensity, the impact resistance of film is strong.
Description
Technical field
The present invention relates to a kind of organic polymer synthetic material technical fields, specially a kind of to be suitable for various atmospheric environments
Lower steel construction and concrete protection high solid aliphatic acrylic polyurethane coating and preparation method thereof.
Background technology
The discharge of organic volatile (VOC) in coating is coating environmental pollution main source, and the whole world is annual according to statistics
There is the solvent of millions of tons to be discharged into air from coating, these organic volatile compounds have not only broken up the mankind and rely life
The air ecological environment deposited, but also the health of mankind itself is damaged.Environmentally friendly coatings are sent out as industry emphasis
One of direction is opened up, includes mainly high solid coating, water paint, powdery paints, UV coating etc., and high solid coating is
Wherein most potential kind.Solvent usage amount substantially reduces in its production process, and is not necessarily to special producing process equipment,
The pollution in coatings enterprises production process is reduced, it is same to also reduce manufacturing cost.High solid aliphatic acrylic is poly-
The energy consumed when urethane paint solidification is very low, can room temperature or low-temperature setting film forming.Integrated environment is protected and film performance, existing
Stage has advantageous advantage using high solid coating.As high solid acroleic acid polyurethane coating, it both had
Excellent coating property, and environmental requirement can be met and develop into a kind of low contamination coating kind, therefore applied with extensive
Expect application market and preferable development prospect.General provision construction solid point is high solid coating in 61-95%.In recent years
There are many development and application patent and document about the poly- ammonia coating of high solid acrylic acid, as CN103396729A disclose it is a kind of low
Viscosity high solids divide acroleic acid polyurethane coating and preparation method thereof, the continents Hui Xue degree Master's thesis《High solid acrylic acid is poly-
The development of urethane coating》, do not refer to VOC emission amount of the coating under working viscosity.On the other hand under working viscosity, film
Sag resistance, dry film only accomplishes 50um not saggings, and this 2 points are exactly high solid acroleic acid polyurethane painting currently on the market
Material there are the problem of：(1) high solid coating is there are system high viscosity, and when use must be added to a large amount of solvents, reduce construction
Solid content virtually increases unit area and coats the discharge of VOC, beyond discharge standard as defined in coating process.(2) application property
Difference, one-pass film-forming is relatively thick, causes sagging serious, and multiple tracks spraying is needed to can be only achieved design film thickness.
Invention content
Present invention aims at the hydroxyl acrylic resins of preferred high-solid lower-viscosity, are helped using solution flocculation dispersant, resist sagging
The raw materials such as agent, high-weatherability pigment, spherical glass beads, solvent and reactive diluent are obtained with advanced Paint preparation technology
High solid aliphatic acrylic polyurethane coating component A cures with the aliphatic isocyanates of low-viscosity, high reaction activity
Agent B component constitutes two-component high solid acroleic acid polyurethane coating.Compared with same kind of products at abroad price it is low, construction
Property is good.The present invention solve high solid aliphatic acrylic polyurethane coating presently, there are viscosity it is high, construction solid point is low,
It constructs the technical problems such as easy sagging, bad mechanical property.
The purpose of the present invention is what is realized by following technical proposals.
A kind of high solid aliphatic acrylic polyurethane coating, coating include tri- component of A, B, C in parts by weight A: B: C
=10: 1.5：The raw material of 1.5~1 ratio mixing：
Component A：
Component B：
100 parts of aliphatic isocyanates tripolymer；
Component C：
50~70 parts of butyl acetate；
30~40 parts of PMA；
10~30 parts of S-100.
Further, the high solid low viscosity Hydroxylated acrylic resin is French Acker agate Co., Ltd
854BA80 or at least one of the 73006D of Taiwan Changxing Chemical Co., Ltd..Resin solid content height (80%), viscosity is low
The molecular weight distribution of (6000-7500mpa.s/25 DEG C), resin is narrow, and hydroxyl value is low, and hydroxyl distribution is regular.
Further, the dispersant is BYK110 or this Co., Ltd of hamming of the U.S. of Bi Ke chemical companies of Germany
At least one of Disponer9250.
Further, the wetting agent is in the BYKP104S or BASF AG EFKA5065 of Bi Ke chemical companies of Germany
At least one.
Further, the ultra-violet absorber is BASF292 light stabilizers or Taiwan photochemistry forever
At least one of Eversorb85 light stabilizers.
Further, the spherical glass beads are the spherical glass beads S38HS or Zhengzhou Sheng Laite of Minnesota Mining and Manufacturing Company
At least one of cenosphere Co., Ltd F200.The low oil factor of spherical glass beads, ductility is good, when by external impacts,
There is good cushioning effect.
Further, the levelling agent is BYK390 or this Co., Ltd of hamming of the U.S. of Bi Ke chemical companies of Germany
At least one of Disponer495.
Further, the antifoaming agent is the BYK054 of Bi Ke chemical companies of Germany or the Tech-431 of Shanghai Tag company
At least one of.
Further, the aliphatic isocyanates tripolymer is HT-100 or the Asahi Chemical Industry of Yantai Wanhua company
At least one of TPA-100.The curing agent is 100% solid content, and viscosity is low.
Correspondingly, the present invention gives a kind of high solid aliphatic acrylic polyurethane coating preparation method, including
Following step：
(1) preparation of component A：
1) preparation of 20% polyamide wax auxiliary agent：Polyamide wax and 50 parts of high solid low viscosities by parts by weight for 20 parts
It is dispersed in 1500r/min after Hydroxylated acrylic resin mixing and is transparent pregel, detection fineness is to 20um hereinafter, under low speed
30 parts of butyl acetates are added, stir evenly, for use；
Wherein, PA3X-20 polyamide wax or Japanese nanmu company of the polyamide wax using Ke Lai Valleylad Inc. of France
At least one of JSP-1068 polyamide waxes.The kind resist sagging is good, does not thicken.
2) preparation of master grind：50-70 parts of Hydroxylated acrylic resin is measured into tank, under 500r/min stirrings
Sequentially add 0.5-1.0 wetting agents, 0.8-1.2 part dispersant, 1-3 parts of triethoxy ethyl propionate, 25-30 parts of golden red
Stone-type titanium dioxide, 10-15 parts of spherical glass beads, 0.2-0.4 parts of carbon blacks, 0.2-1.4 parts of 154L are yellow, 0.3-0.8 parts
Bentonite, 1-4 part dimethylbenzene disperse 10-15min under 2000r/min stirrings；Temperature is less than 60 DEG C of ground control fineness
Reach 20 μm；
3) paint：Master grind enters tank, and 0.2~1 part of ultra-violet absorber, 10 are sequentially added under 1500r/min stirrings
~20 part of 20% polyamide wax auxiliary agent, 0.3~1 part of levelling agent, 0.1~0.6 part of antifoaming agent, 1-3 parts of butyl acetate adjustment are viscous
Degree, stirs 10-15min, and control viscosity is packed in 95-105KU stormer viscosities, filtering to get component A；
(2) preparation of component B：
By HT-100 aliphatic isocyanates tripolymers, filtering dispenses to get B component；
(3) preparation of component C：
By weight ratio by butyl acetate: (50~70) PMA: S-100=：(30~40)：(10~30) it mixes,
300r/min stirs 5min, packs to get component C；
3) mixing of component A, component B and component C：
Used time component A by weight ratio: component B：Component C=10: 1.5：1.5~1, it stirs evenly, curing 15min is
It can.
Coating of the present invention has the following advantages that compared with existing similar product in the market：
(1) low VOC content.High solid coating effectively reduces the use of solvent in coating material production.
(2) solid content is high under working viscosity.Spherical glass beads are used, construction solid point, VOC when reducing construction are improved
Discharge.
(3) environmentally friendly, energy saving.It is molten in production and coating process using 80% solid hydroxy acryl acid resin, product
Agent dosage is few, and construction solid point is high, construction VOC emission is 340g/L or less (being far below country limit standard 420g/L), significantly
Toxic and harmful gas discharge is reduced, it is energy-saving to realize.And the use by reducing solvent, reach energy-saving work
With.
(4) the application period is short, efficient.One time application thickness of dry film reaches 130um, and primary coating thickness of constructing is than general
Coating is higher by 2-3 times, reduces application road number, improves coating efficiency, reduces labor intensity.
(5) spherical glass beads are used, the impact resistance of film is substantially increased, coating thickness is in 80-90um, punching
Hit intensity square impact reaches 50kgcm.
The high solid aliphatic acrylic polyurethane coating category high solid low viscosity product of the present invention, construction solid point height are single
The upper VOC emission of plane product is few, has good workability, and the primary wet film that sprays reaches 200-250um not saggings, and thickness of dry film is in 130-
140um, primary coating film forming greatly shorten the application period, improve working efficiency.When reaching working viscosity, VOC emission is
340g/L (is far below country limit standard 420g/L), has the protrusions such as decorative well, mechanical performance is excellent, weatherability is high
Advantage is widely used on various big machineries, bridge.
Specific implementation mode
As described below is the preferred embodiment of the present invention, and what the present invention was protected is not limited to following preferred implementation side
Formula, the case study on implementation are explanation of the invention rather than limit.It points out simultaneously, for those skilled in the art
On the basis of this innovation and creation is conceived, the several modifications and improvements made belong to protection scope of the present invention.
Embodiment 1
Component A：
1) preparation of 20% polyamide wax auxiliary agent：The PA3X-20 that parts by weight are 20 parts of Ke Lai Valleylad Inc. of France is gathered
Amide waxe and 50 parts of French ArkemaAfter the mixing of 854BA80 high solid low viscosity Hydroxylated acrylic resins,
It is dispersed in 1500r/min and is transparent pregel, detection fineness is to 20um hereinafter, low speed dispersion is lower to be added 30 parts of acetic acid fourths
Ester stirs evenly, for use.
2) by weight ratio, by 70 parts854BA80 high solid low viscosity Hydroxylated acrylic resins measure
Enter tank, 0.8 Fen Bike chemical companies BYK110,0.5 Fen Bike chemical companies are added under the speed of 500r/min
BYKP104S, 1 part of triethoxy ethyl propionate, 25 parts of rutile type titanium whites, 10 parts of spherical glass beads, 0.2 part of carbon black,
Rotating speed after stirring evenly, is transferred to 2000r/min and disperses 10- by 0.2 part of 154L Huang, 0.5 part of bentonite, 2 parts of dimethylbenzene
15min, is transferred to lower road grinding process, and first pass quickly goes over grinder, second time, third time control fineness, control grinding
Temperature is less than 60 DEG C, until fineness reaches 20um.It is transferred to next procedure --- paint.
3) paint：Master grind is measured into tank, and 0.2 part of BASF is sequentially added under 1500r/min stirrings
292 light stabilizers, 10 part of 20% polyamide wax auxiliary agent, the BYK390 levelling agents of 0.3 part of Bi Ke chemical company of Germany, 0.3 part of moral
The BYK054 antifoaming agent of Guo Bike chemical companies, 3 parts of butyl acetates adjust viscosity, stir 15min, control viscosity is in 95-
105KU Stormer viscositys.Filtering, packaging.Up to component A.
Component B：
By aliphatic isocyanates tripolymer HT-100 tripolymers, filtering dispenses to get B component.
(3) component C：
By weight ratio by butyl acetate: PMA: S-100=60：30：10 mixing stir 5min, packet in 300r/min
Dress is to get component C.
Used time component A by weight ratio: component B：Component C=10: 1.5：1, it stirs evenly, curing 15min can make
With.It can airless spraying, roller coating, brushing multimode construction.
A kind of high solid aliphatic acrylic polyurethane coating product mechanical performance workability of the present invention and VOC content
Testing procedure is as follows：
Experimental facilities and material：
Experimental facilities：Salt-fog resistant test machine (upper Hailin frequency experimental instruments and equipment limited)；The forced dry blasting machine of GY-2 types
(Beijing Chang Kong abrasive blast equipment Co., Ltd)；Adherometer (Britain Yi Gao company elcometer)；Sagging instrument (QAG type colors
Paint flow analyzer, Tianjin Yonglida Material Testing Machine Co., Ltd.).
Base material：The steel plate of 150 × 100 × 2mm
Surface treatment：ISO 8501 is evaluated.
Test system
It is prepared by test sample plate：Steel plate applies one layer of epoxy intermediate coat and (paints the limited public affairs of share in Shaanxi The Tower Hill after sandblasting
Department), thickness of dry film 140-150um is spaced 24 hours and sprays product of the present invention, and dry film is supported between 90-100um under room temperature
Shield 7 days, for carrying out resistance to artificial accelerated aging and salt fog resistance test.
High solid aliphatic acrylic polyurethane coating (light gray) main performance index test result is as follows table 1：
Table 1, VOCs, workability and the Corrosion Protection test knot of high solid aliphatic acrylic polyurethane coating
Fruit.
Embodiment 2
Component A：
1) preparation of 20% polyamide wax auxiliary agent：By the JSP-1068 polyamides that parts by weight are 20 parts of Japanese nanmu companies
After amine wax is mixed with 73006D (80%) high solid low viscosity Hydroxylated acrylic resin of 50 parts of Taiwan Changxing Chemical Co., Ltd.
It is dispersed in 1500r/min and is transparent pregel, detected fineness to 20um hereinafter, 30 parts of butyl acetates are added under low speed, stir
It mixes uniformly, for use.
2) by weight ratio, 50 parts of 73006D (80%) high solid low viscosity Hydroxylated acrylic resins are measured into tank,
The Disponer9250 of 1.2 parts of this Co., Ltds of hamming of the U.S. of addition, 0.5 part of BASF AG under the speed of 500r/min
EFKA5065,2 parts of triethoxy ethyl propionate, 28 parts of rutile type titanium whites, 15 parts of spherical glass beads, 0.3 part of carbon black,
Rotating speed after stirring evenly, is transferred to 2000r/min and disperses 10- by 0.8 part of 154L Huang, 0.3 part of bentonite, 4 parts of dimethylbenzene
15min, is transferred to lower road grinding process, and first pass quickly goes over grinder, second time, third time control fineness, control grinding
Temperature is less than 60 DEG C, until fineness reaches 20um.It is transferred to next procedure --- paint.
3) paint：Master grind is measured into tank, and 1 part of Taiwan photochemistry forever is sequentially added under 1500r/min stirrings
Eversorb85 light stabilizers, 20 part of 20% polyamide wax auxiliary agent, 0.6 part of this Co., Ltd of hamming of the U.S. Disponer495
Levelling agent, the Tech-431 antifoaming agent of 0.6 part of Shanghai Tag company, 1 part of butyl acetate adjust viscosity, stir 10min, and control is viscous
Degree is in 95-105KU stormer viscosities.Filtering, packaging.Up to component A.
Component B：
By Asahi Chemical Industry's aliphatic isocyanates tripolymer TPA-100 tripolymers, filtering dispenses to get B component.
(3) component C：
By weight ratio by butyl acetate: PMA: S-100=70：30：20 mixing stir 5min, packet in 300r/min
Dress is to get component C.
Used time component A by weight ratio: component B：Component C=10: 1.5：1.5, it stirs evenly, cures 15min
It uses.It can airless spraying, roller coating, brushing multimode construction.
High solid aliphatic acrylic polyurethane coating product mechanical performance workability and VOC content test of the present invention
Steps are as follows：
Experimental facilities and material：
Experimental facilities：Salt-fog resistant test machine (upper Hailin frequency experimental instruments and equipment limited)；The forced dry blasting machine of GY-2 types
(Beijing Chang Kong abrasive blast equipment Co., Ltd)；Adherometer (Britain Yi Gao company elcometer)；Sagging instrument (QAG type colors
Paint flow analyzer, Tianjin Yonglida Material Testing Machine Co., Ltd.).
Base material：The steel plate of 150 × 100 × 2mm
Surface treatment：ISO 8501 is evaluated.
Test system
It is prepared by test sample plate：Steel plate applies one layer of epoxy intermediate coat and (paints the limited public affairs of share in Shaanxi The Tower Hill after sandblasting
Department), thickness of dry film 140-150um is spaced 24 hours and sprays product of the present invention, and dry film is supported between 90-100um under room temperature
Shield 7 days, for carrying out resistance to artificial accelerated aging and salt fog resistance test.
High solid aliphatic acrylic polyurethane coating (light gray) main performance index test result is as follows table 1：
Table 1, VOCs, workability and the Corrosion Protection test knot of high solid aliphatic acrylic polyurethane coating
Fruit.
Embodiment 3
Component A：
1) preparation of 20% polyamide wax auxiliary agent：By the JSP-1068 polyamides that parts by weight are 20 parts of Japanese nanmu companies
After amine wax is mixed with 73006D (80%) high solid low viscosity Hydroxylated acrylic resin of 50 parts of Taiwan Changxing Chemical Co., Ltd.
It is dispersed in 1500r/min and is transparent pregel, detected fineness to 20um hereinafter, 30 parts of butyl acetates are added under low speed, stir
It mixes uniformly, for use.
2) by weight ratio, 60 parts of 73006D (80%) high solid low viscosity Hydroxylated acrylic resins are measured into tank,
The Disponer9250 of 1.0 parts of this Co., Ltds of hamming of the U.S. of addition, 1.0 parts of BASF AG under the speed of 500r/min
EFKA5065,3 parts of triethoxy ethyl propionate, 30 parts of rutile type titanium whites, 12 parts of spherical glass beads, 0.4 part of carbon black,
Rotating speed after stirring evenly, is transferred to 2000r/min and disperses 10- by 1.4 parts of 154L Huangs, 0.8 part of bentonite, 1 part of dimethylbenzene
15min, is transferred to lower road grinding process, and first pass quickly goes over grinder, second time, third time control fineness, control grinding
Temperature is less than 60 DEG C, until fineness reaches 20um.It is transferred to next procedure --- paint.
3) paint：Master grind is measured into tank, and 0.8 part of Taiwan photochemistry forever is sequentially added under 1500r/min stirrings
Eversorb85 light stabilizers, 15 part of 20% polyamide wax auxiliary agent, 1 part of this Co., Ltd of hamming of the U.S. Disponer495 streams
Flat agent, the Tech-431 antifoaming agent of 0.1 part of Shanghai Tag company, 2 parts of butyl acetates adjust viscosity, stir 15min, control viscosity
In 95-105KU stormer viscosities.Filtering, packaging.Up to component A.
Component B：
By Asahi Chemical Industry's aliphatic isocyanates tripolymer TPA-100 tripolymers, filtering dispenses to get B component.
(3) component C：
By weight ratio by butyl acetate: PMA: S-100=50：40：10 mixing stir 5min, packet in 300r/min
Dress is to get component C.
Used time component A by weight ratio: component B：Component C=10: 1.5：1.5, it stirs evenly, cures 15min
It uses.It can airless spraying, roller coating, brushing multimode construction.
High solid aliphatic acrylic polyurethane coating product mechanical performance workability and VOC content test of the present invention
Steps are as follows：
Experimental facilities and material：
Experimental facilities：Salt-fog resistant test machine (upper Hailin frequency experimental instruments and equipment limited)；The forced dry blasting machine of GY-2 types
(Beijing Chang Kong abrasive blast equipment Co., Ltd)；Adherometer (Britain Yi Gao company elcometer)；Sagging instrument (QAG type colors
Paint flow analyzer, Tianjin Yonglida Material Testing Machine Co., Ltd.).
Base material：The steel plate of 150 × 100 × 2mm
Surface treatment：ISO 8501 is evaluated.
Test system
It is prepared by test sample plate：Steel plate applies one layer of epoxy intermediate coat and (paints the limited public affairs of share in Shaanxi The Tower Hill after sandblasting
Department), thickness of dry film 140-150um is spaced 24 hours and sprays product of the present invention, and dry film is supported between 90-100um under room temperature
Shield 7 days, for carrying out resistance to artificial accelerated aging and salt fog resistance test.
High solid aliphatic acrylic polyurethane coating (light gray) main performance index test result is as follows table 1：
Table 1, VOCs, workability and the Corrosion Protection test result of high solid aliphatic acrylic polyurethane coating.
As a result：
1. product construction solid point of the present invention reaches 64.5%, and similar-type products construction solid point only has 40%, is higher by
24.5%.
2. product application property of the present invention is good, one-pass film-forming thickness of dry film reaches 140um, not sagging.Similar-type products dry film, only
It can accomplish 80um.Application road number is reduced, labor intensity is reduced, shortens the application period.
3. construction VOC is 340g/L, (being far below country limit standard 420g/L) substantially reduces toxic and harmful gas row
It puts, belongs to environment-friendly products in heavy antisepsis product scope.
4. good mechanical property, impact resistance.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation mode of the present invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off
Under the premise of from present inventive concept, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by institute
Claims of submission determine scope of patent protection.
Claims (7)
1. a kind of high solid aliphatic acrylic polyurethane coating, which is characterized in that coating include tri- component of A, B, C by weight
Number A: B: C=10: 1.5：The raw material of 1.5~1 ratio mixing：
Component A：
Component B：
100 parts of aliphatic isocyanates tripolymer；
Component C：
50~70 parts of butyl acetate；
30~40 parts of PMA；
10~30 parts of S-100；
The high solid low viscosity Hydroxylated acrylic resin is French Acker agate Co., Ltd854BA80, platform
At least one of the 73006D of gulf Changxing Chemical Co., Ltd.；For the resin solid content up to 80%, viscosity reaches 6000-
7500mPa.s/25 DEG C, the narrow molecular weight distribution of resin, hydroxyl value is low, and hydroxyl distribution is regular；
The spherical glass beads are the spherical glass beads S38HS of Minnesota Mining and Manufacturing Company, the limited public affairs of Zhengzhou Sheng Laite cenospheres
Take charge of at least one of F200；
The aliphatic isocyanates tripolymer is the HT-100 of Yantai Wanhua company, at least one in the TPA-100 of Asahi Chemical Industry
Kind；
The coating once sprays wet film and reaches 200-250 μm of not sagging, and thickness of dry film is at 130-140 μm, primary coating film forming.
2. a kind of high solid aliphatic acrylic polyurethane coating as described in claim 1, which is characterized in that the dispersion
Agent is the BYK110 of Bi Ke chemical companies of Germany, at least one of the Disponer9250 of this Co., Ltd of hamming of the U.S..
3. a kind of high solid aliphatic acrylic polyurethane coating as described in claim 1, which is characterized in that the wetting
Agent is at least one of BYKP104S, the BASF AG EFKA5065 of Bi Ke chemical companies of Germany.
4. a kind of high solid aliphatic acrylic polyurethane coating as described in claim 1, which is characterized in that described ultraviolet
Light absorbers are BASF292 light stabilizers, Taiwan are forever at least one in photochemistry Eversorb85 light stabilizers
Kind.
5. a kind of high solid aliphatic acrylic polyurethane coating as described in claim 1, which is characterized in that the levelling
Agent is the BYK390 of Bi Ke chemical companies of Germany, at least one of the Disponer495 of this Co., Ltd of hamming of the U.S..
6. a kind of high solid aliphatic acrylic polyurethane coating as described in claim 1, which is characterized in that the defoaming
Agent is the BYK054 of Bi Ke chemical companies of Germany, at least one of the Tech-431 of Shanghai Tag company.
7. a kind of preparation method of high solid aliphatic acrylic polyurethane coating described in claim 1, which is characterized in that
Include the following steps：
(1) preparation of component A：
1) preparation of 20wt% polyamide waxes auxiliary agent：Polyamide wax and 50 parts of high solid low viscosity hydroxyls by parts by weight for 20 parts
It is dispersed in 1500r/min after the mixing of base acrylic resin and is transparent pregel, detection fineness is to 20um hereinafter, adding under low speed
Enter 30 parts of butyl acetates, stirs evenly, for use；
2) preparation of master grind：50-70 parts of high solid low viscosity Hydroxylated acrylic resin is measured into tank, in 500r/
0.5-1.0 wetting agents, 0.8-1.2 part dispersant, 1-3 parts of triethoxy ethyl propionate, 25- are sequentially added under min stirrings
30 parts of rutile type titanium whites, 10-15 parts of spherical glass beads, 0.2-0.4 parts of carbon blacks, 0.2-1.4 parts of 154L are yellow,
0.3-0.8 parts of bentonites, 1-4 parts of dimethylbenzene disperse 10-15min under 2000r/min stirrings；Temperature is less than 60 DEG C through grinding
Mill control fineness reaches 20 μm；
3) paint：Master grind enters tank, and 0.2~1 part of ultra-violet absorber, 10~20 are sequentially added under 1500r/min stirrings
Part 20wt% polyamide waxes auxiliary agent, 0.3~1 part of levelling agent, 0.1~0.6 part of antifoaming agent, 1-3 parts of butyl acetates adjust viscosity,
10-15min is stirred, control viscosity is packed in 95-105KU stormer viscosities, filtering to get component A；
(2) preparation of component B：
By HT-100 aliphatic isocyanates tripolymers, filtering dispenses to get B component；
(3) preparation of component C：
By weight ratio by butyl acetate: (50~70) PMA: S-100=：(30~40)：(10~30) it mixes, in 300r/
Min stirs 5min, packs to get component C；
(4) mixing of component A, component B and component C：
Used time component A by weight ratio: component B：Component C=10: 1.5：1.5~1, it stirs evenly, cures 15min.
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| CN107556897A (en) * | 2017-10-18 | 2018-01-09 | 江苏建中能源科技有限公司 | A kind of polyurethane coating and its production method |
| CN107868603A (en) * | 2017-12-06 | 2018-04-03 | 陕西宝塔山油漆股份有限公司 | A kind of low surface-functional acrylic polyurethane finish paint and preparation method thereof |
| CN109266196A (en) * | 2018-09-17 | 2019-01-25 | 湘江涂料科技有限公司 | A kind of high solid acrylic polyurethane finish paint and preparation method thereof |
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| CN102093810B (en) * | 2010-09-28 | 2012-12-26 | 湖南中汉高分子材料科技有限公司 | Acrylic polyurethane finish paint |
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