CN107629652A - A kind of water-based paint compositions, preparation method and applications - Google Patents
A kind of water-based paint compositions, preparation method and applications Download PDFInfo
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- CN107629652A CN107629652A CN201710831328.1A CN201710831328A CN107629652A CN 107629652 A CN107629652 A CN 107629652A CN 201710831328 A CN201710831328 A CN 201710831328A CN 107629652 A CN107629652 A CN 107629652A
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Abstract
The invention discloses a kind of water-based paint compositions, include the component of following parts by weight：Component A includes the component of following parts by weight：40.0~70.0 parts of high hydroxyl value water-dispersed acrylic ester resin, 10.0~40.0 parts of pigment, acceptable 3.6~22.0 parts of coating additive on polymer science；B component includes the component of following parts by weight：65.0~100.0 parts of modified polyurethane curing agent.The invention provides a kind of gloss height, good weatherability, the water-based paint compositions that pot-life is long, normal temperature solidified and environmentally friendly, when coordinating suitable cosolvent and wetting agent and defoamer, the good water-based paint compositions such as adhesive force, storage characteristics are further obtained.The water-based paint compositions of the present invention have preferable storage stability, and properties can reach the performance required by current solvent based coating, moderate, can adapt to the demand of domestic market.
Description
Technical field
The invention belongs to technical field of paint preparation, and in particular to a kind of water-based paint compositions, preparation method and its should
With.
Background technology
Currently, the application of engineering machinery and rail traffic vehicles vehicle body is, it is necessary to follow the steps below：Pre-treatment, priming paint, in
Apply, finish paint, used each road coating is essentially all solvent based coating.It is big caused by solvent contained by solvent based coating
The solvent discharge of amount can cause serious environmental pollution, in every respect all when VOC emission is paid close attention to, engineering machinery and track
Vehicular traffic body varnish certainly will need Water-borne modification.
The producer for having minority has begun to use aqueous finish paint, but develops slow.Compared with solvent based coating, mesh
Preceding aqueous finish paint common problem is relatively more：
1st, gloss is relatively low.
Because commercially available most water-based acrylic resin gloss itself is difficult to reach solvent-borne type peer-level, and water-based poly- ammonia
The compatibility of ester curing agent and water and water-based acrylic resin is relatively poor, and obtained coating film gloss is relatively low.
2nd, weatherability is poor.
The weatherability of aqueous finish paint is in addition to requiring itself good weatherability of resin, curing agent, pigment, it is also necessary to ultraviolet
Light absorber, hindered amine light stabilizer further improve its weatherability.Traditional UV absorbers, hindered amine light stabilizer
Addition easily causes system unstable in water paint, easily separates out, and coating gel etc. is caused when serious, shortens pot-life, because
This, can not be added in water paint.Lack UV absorbers, the water paint of hindered amine light stabilizer carries out film, weatherability
Difference.
3rd, pot-life is short.
Because polyurethane curing agent can react with water in itself, and by the acrylic resin of coating, PH, auxiliary agent, cosolvent etc.
Influence, less than 2 hours, some were even below 1 hour many aqueous finish paint pot-lifes on the market, were highly detrimental to apply on a large scale
Work.
In view of this, it is necessary to develop a kind of gloss height, good weatherability, the water-based paint compositions of pot-life length.
The content of the invention
For problem of the prior art, it is an object of the present invention to provide a kind of gloss height, good weatherability, pot-life length
Water-based paint compositions.
It is a further object to provide a kind of coating prepared using the water-based paint compositions.
To achieve these goals, the technical solution adopted by the present invention is as follows：
One aspect of the present invention provides a kind of water-based paint compositions, includes the component of following parts by weight：
Component A includes the component of following parts by weight：
40.0~70.0 parts of high hydroxyl value water-dispersed acrylic ester resin,
10.0~40.0 parts of pigment,
Acceptable 3.6~22.0 parts of coating additive on polymer science；
B component includes the component of following parts by weight：
65.0~100.0 parts of modified polyurethane curing agent.
Preferably, the water-based paint compositions include the component of following parts by weight：
Component A includes the component of following parts by weight：
B component includes the component of following parts by weight：
65.0~100.0 parts of modified polyurethane curing agent.
Preferably, the water-based paint compositions include the component of following parts by weight：
Component A includes the component of following parts by weight：
40.0~70.0 parts of high hydroxyl value water-dispersed acrylic ester resin,
10.0~40.0 parts of pigment,
Acceptable 3.6~22.0 parts of coating additive on polymer science；
B component includes the component of following parts by weight：
Second 0.1~35.0 part of cosolvent,
65.0~100.0 parts of modified polyurethane curing agent.
Preferably, the water-based paint compositions include the component of following parts by weight：
Component A includes the component of following parts by weight：
B component includes the component of following parts by weight：
Second 0.1~35.0 part of cosolvent,
65.0~100.0 parts of modified polyurethane curing agent.
The hydroxyl value of the high hydroxyl value water-dispersed acrylic ester resin is between 100~140, and glass transition temperature TG is at 30 DEG C
Hereinafter, particle diameter is 100~180nm, and pH value is between 7.0~7.5；Preferably Bayhydrol A2470 (are purchased from Bayer material supply section
Skill trade (Shanghai) Co., Ltd.), Bayhydrol A2646 (being purchased from Bayer (China) Co., Ltd.), BURNOCK WD-551
(being purchased from Shanghai DIC trade Co., Ltd), Antkote 2042 (being purchased from Yantai Wanhua chemical groups limited company),
Antkote 2033 (being purchased from Wanhua Chemical Group Co., Ltd.), NeoCryl XK-540 (have purchased from DSM (China)
Limit company).
The pigment is at least one of titanium dioxide, carbon black, organic pigment.
First cosolvent refers to alcohol ethers solvent of the boiling point at 180~280 DEG C.
The alcohol ethers solvent is diethylene glycol ether acetic acid esters, butyl acetic acid esters, diethylene glycol hexyl ether, two
Ethylene glycol diethyl ether, propylene-glycol diacetate, dibutyl ethylene glycol ether, dimethyl ether, Dipropylene glycol mono-n-butyl Ether, 3 third
At least one of glycol monobutyl ether.
Preferably, acceptable coating additive includes the component of following parts by weight on the polymer science：
Preferably, acceptable coating additive includes the component of following parts by weight on the polymer science：
Second cosolvent is ether-ether class, preferably dibasic acid esters type organic solvent, propylene glycol methyl ether acetate, propane diols
At least one of diacetate esters, diethylene glycol ether acetic acid esters.
Another aspect of the present invention provides a kind of coating prepared using the water-based paint compositions, by the A
Component is with B component according to parts by weight 100:The ratio mixing of (15~30), NCO group (isocyanate groups) and OH groups
The ratio of (oh group) is (1~1.5)：1, obtain coating after coating crosslinking.
Due to there is advantages below and beneficial effect using above-mentioned technical proposal, the present invention：
The water-based paint compositions of the present invention are a kind of for the outdoor engineering machinery used, the painting of rail traffic vehicles vehicle body
The topcoat paint of dress, institute's film forming have higher gloss, preferable weatherability, longer pot-life, excellent outward appearance, intact
Fall into.
The water-based paint compositions of the present invention are applied to the outdoor engineering machinery used, rail traffic vehicles car body coating
Topcoat, in the market coating obtained from being coated with the water-based paint compositions of the present invention and used water-based engineering
Machinery, the topcoat of rail traffic vehicles car body coating compare, and gloss can improve 5~10 degree (60 degree of angles), weather resistance
Improve 300~500 hours (QUV-B), pot-life can improve 1~2 hour.
Water-based paint compositions provided by the invention have that gloss height, good weatherability, pot-life be long, normal temperature solidified and ring
The characteristic of guarantor, when coordinating suitable cosolvent and wetting agent and defoamer, it is good further to obtain adhesive force, storage characteristics etc.
Water-based paint compositions.The water-based paint compositions of the present invention have preferable storage stability, and properties can reach
Performance required by solvent based coating at present, it is moderate, it can adapt to the demand of domestic market.
Embodiment
In order to illustrate more clearly of the present invention, with reference to preferred embodiment, the present invention is described further.Ability
Field technique personnel should be appreciated that following specifically described content is illustrative and be not restrictive, and this should not be limited with this
The protection domain of invention.
In the case of being clear from, being explained to the purpose of the present invention by following examples, all components are with weight
Part is released bright for the universal standard.In the case of without special instruction, for simplicity, " part " described in the embodiment of the present invention
There is identical meaning with parts by weight.
It is described in detail to various aspects of the present invention below.Unless specific instructions, various raw materials of the invention can lead to
Cross and be commercially available；Or it is prepared according to the conventional method of this area.Unless otherwise defined or described herein, institute used herein
There is specialty identical with meaning known to those skilled in the art with scientific words.In addition it is any similar to described content
Or impartial method and material all can be applied in the inventive method.
The hydroxyl value of high hydroxyl value water-dispersed acrylic ester resin used in the embodiment of the present invention is between 100~140, glass
Change temperature TG below 30 DEG C, particle diameter is 100~180nm, and pH value is between 7.0~7.5；Preferably Bayhydrol A2470
(being purchased from Bayer MaterialScience Tradings (Shanghai) Co., Ltd.), Bayhydrol A2646 (being purchased from Bayer (China) Co., Ltd.),
BURNOCK WD-551 (being purchased from Shanghai DIC trade Co., Ltd), Antkote 2042 (are purchased from Yantai Wanhua chemical groups
Limited company), Antkote 2033 (being purchased from Wanhua Chemical Group Co., Ltd.), NeoCryl XK-540 (be purchased from
DSM (China) Co., Ltd).
The embodiment of the present invention selects specific high hydroxyl value water-dispersed acrylic ester resin, in gloss, weatherability, activation
Performance is preferable in terms of phase, bin stability.In high hydroxyl value water-dispersed acrylic ester resin, hydroxy radical content is of a relatively high,
After being reacted with modified polyurethane curing agent, it is high that of a relatively high crosslink density, good chemical resistance, and gloss can be obtained.
In a preferred embodiment, in the component A, the hydroxyl value of high hydroxyl value water-dispersed acrylic ester resin is 140.
In a preferred embodiment, in the component A, the pH value of high hydroxyl value water-dispersed acrylic ester resin is 7.0
Between~7.5.
In a preferred embodiment, in the component A, the particle diameter of high hydroxyl value water-dispersed acrylic ester resin is 100
~180nm.
In a preferred embodiment, in the component A, the glass transition temperature of high hydroxyl value water-dispersed acrylic ester resin
TG values are below 30 DEG C.
Pigment is not particularly limited in the embodiment of the present invention, only requires itself to be weather resistant pigment, the face
Material be well known to those skilled in the art, for example, can by the DUPON R960 titanium dioxide pigments that commercial sources obtain,
BASF Heliogen Blue L7080 blue organic pigments.
Higher boiling cosolvent is selected in the embodiment of the present invention, is advantageous in the low situation of large-area construction or ambient humidity
Under, obtain the good film of outward appearance；Meanwhile higher boiling cosolvent is advantageous to film during baking and bubbled；Also, higher boiling cosolvent
The pot-life of coating is influenceed smaller.
Alcohol ethers cosolvent in the embodiment of the present invention, even if itself is very low with the compatibility of water, what can also be stablized is scattered
In water paint, and bring obvious defoaming effect.
Acceptable coating additive includes dispersant, ground wetting agent, strong on polymer science in component A of the embodiment of the present invention
Imitate defoamer, easily scattered defoamer, thickener, UV absorbers, hindered amine light stabilizer, deionized water or its combination.This
Invention can also use other coating additives, as long as not producing limitation to the goal of the invention of the present invention.
Potent defoamer used in the embodiment of the present invention is used for the mill base grinding stage, is advantageous to the defoaming of mill base, passes through simultaneously
Strong shear effect during grinding is crossed, the compatibility of potent defoamer substantially improves, it is not easy to the disadvantage of shrinkage cavity occurs；It is described potent
What defoamer was known to those skilled in the art.
Easily scattered defoamer used in the embodiment of the present invention is used for letdown phase, stirs what is brought for eliminating letdown phase
Foam.This type defoamer had both made under relatively low shearing force, can also be mixed into well in coating, was not in the disadvantage of shrinkage cavity
Disease.The easily scattered defoamer is also known for those skilled in the art.
Specific thickener used in the embodiment of the present invention has to improving gloss, improvement bin stability, improving application property
It is obvious to help.
In a preferred embodiment, thickener selection is low cuts the good polyurethanes thickener of thickening effect.The thickening
Agent can be obtained by commercial sources, as RHEOLATE 299 is purchased from this new material Science and Technology Ltd. of Nanjing hamming；RM-8W is purchased
From DOW Chemical.
Specific UV absorbers, hindered amine light stabilizer used in the embodiment of the present invention, contribute to coating system
Bin stability, the pot-life of coating is not influenceed, and can greatly improve weatherability.
In a preferred embodiment, UV absorbers, hindered amine light stabilizer be Tinuvin 99DW (N),
At least one of Tinuvin 123DW (N), Tinuvin 400DW (N), Tinuvin 477DW (N)；The reagent of the above trade mark
It is purchased from BASF joint-stock company.
The second cosolvent selection ether-ether class of B component, dibasic acid esters type organic solvent, are advantageous to B groups in the embodiment of the present invention
Divide the bin stability of itself, and be advantageous to the gloss of film after raising cross-linking reaction.
In a preferred embodiment, second cosolvent is propylene glycol methyl ether acetate, propylene-glycol diacetate, two
At least one of ethyl cellosolve acetate.
Specific modified polyurethane curing agent is selected in the embodiment of the present invention, be advantageous to obtain higher coating film gloss and
Longer pot-life.
In a preferred embodiment, modified polyurethane curing agent is that Bayhydur XP 2655 (are purchased from Bayer material supply section
Skill trade (Shanghai) Co., Ltd.), Bayhydur XP 304 (being purchased from Bayer (China) Co., Ltd.), Bayhydur XP 304
(being purchased from Bayer (China) Co., Ltd.), Desmodur N 3900 (being purchased from Bayer (China) Co., Ltd.), BURNOCK DNW-
5500 (being purchased from Shanghai DIC trade Co., Ltd), Aquolin 268 (are purchased from the limited public affairs of Yantai Wanhua chemical groups share
Department), at least one of Aquolin 161 (being purchased from Wanhua Chemical Group Co., Ltd.).
In a preferred embodiment, the mixed proportion of component A and B component presses NCO:OH=(1~1.5)：1 calculates.
It is listed below obtaining the commercial sources of various reagents：
Bayhydrol A2470 (are purchased from Bayer MaterialScience Tradings (Shanghai) Co., Ltd., Chinese Shanghai)
Antkote 2042 (is purchased from Yantai Wanhua chemical groups limited company)
EFKA4550 (is purchased from BASF China)
Tego wet Twin 4100 (are purchased from Tego Chemie service GmbH companies)
BYK-024 (is purchased from BYK-CHEMIE GmbH companies)
BYK-015 (is purchased from BYK-CHEMIE GmbH companies)
TI-PURE R-960 (are purchased from titanium white science and technology (Shanghai) Co., Ltd. of Du Pont)
RHEOLATE 299 (is purchased from this new material Science and Technology Ltd. of Nanjing hamming)
Tinuvin 99DW (N) (are purchased from BASF China)
Tinuvin 123DW (N) (are purchased from BASF China)
Aquolin 268 (is purchased from Yantai Wanhua chemical groups limited company)
Bayhydur XP 2655 (are purchased from Bayer MaterialScience Tradings (Shanghai) Co., Ltd., Chinese Shanghai)
BURNOCK DNW-5500 (are purchased from DIC synthetic resin (middle mountain) Co., Ltd).
Embodiment 1
(1) following components is uniformly mixed with mixer：(following components is in terms of parts by weight)
(2) and then with sand mill be sanded to fineness in below 10um, add following each component：
Above component high-speed stirred is uniformly used as component A.
(3) following components is uniformly mixed with mixer：
20.0 parts of propylene-glycol diacetate,
80.0 parts of 2655 modified polyurethane curing agents of Bayhydur XP,
Stir and obtain B component.
Component A and B component with packing jar pack standby respectively, the water-based paint compositions is obtained, keeps away
Exempt from it is open in atmosphere.
By component A and B component according to parts by weight 100:24 ratio mixing, coating is obtained after coating crosslinking.
The mixed proportion of the component A and B component A selected by weight:B=100:24, it is computed NCO group and OH bases
The ratio of group is 1.5：1.
Embodiment 2
(1) following components is uniformly mixed with mixer：(following components is in terms of parts by weight)
(2) and then with sand mill be sanded to fineness in below 10um, add following each component：
Above component high-speed stirred is uniformly used as component A.
(3) following components is uniformly mixed with mixer：
20.0 parts of propylene-glycol diacetate,
80.0 parts of 2655 modified polyurethane curing agents of Bayhydur XP,
Stir and obtain B component.
Component A and B component with packing jar pack standby respectively, the water-based paint compositions is obtained, keeps away
Exempt from it is open in atmosphere.
By component A and B component according to parts by weight 100:21 ratio mixing, coating is obtained after coating crosslinking.
The mixed proportion of the component A and B component A selected by weight:B=100:21, it is computed NCO group and OH bases
The ratio of group is 1.32：1.
Embodiment 3
(1) following components is uniformly mixed with mixer：(following components is in terms of parts by weight)
(2) and then with sand mill be sanded to fineness in below 10um, add following each component：
Above component high-speed stirred is uniformly used as component A.
(3) following components is uniformly mixed with mixer：
20.0 parts of propylene-glycol diacetate,
80.0 parts of 2655 modified polyurethane curing agents of Bayhydur XP,
Stir and obtain B component.
Component A and B component with packing jar pack standby respectively, the water-based paint compositions is obtained, keeps away
Exempt from it is open in atmosphere.
By component A and B component according to parts by weight 100:17.5 ratio mixing, coating is obtained after coating crosslinking.
The mixed proportion of the component A and B component A selected by weight:B=100:17.5, it is computed NCO group and OH
The ratio of group is 1.1：1.
Embodiment 4
(1) following components is uniformly mixed with mixer：(following components is in terms of parts by weight)
(2) and then with sand mill be sanded to fineness in below 10um, add following each component：
Above component high-speed stirred is uniformly used as component A.
(3) following components is uniformly mixed with mixer：
100.0 parts of BURNOCK DNW-5500 modified polyurethane curing agents,
Stir and obtain B component.
Component A and B component with packing jar pack standby respectively, the water-based paint compositions is obtained, keeps away
Exempt from it is open in atmosphere.
By component A and B component according to parts by weight 100:30 ratio mixing, coating is obtained after coating crosslinking.
The mixed proportion of the component A and B component A selected by weight:B=100:30, it is computed NCO group and OH bases
The ratio of group is 1.5：1.
Embodiment 5
(1) following components is uniformly mixed with mixer：(following components is in terms of parts by weight)
(2) and then with sand mill be sanded to fineness in below 10um, add following each component
Above component high-speed stirred is uniformly used as component A.
(3) following components is uniformly mixed with mixer：
100.0 parts of BURNOCK DNW-5500 modified polyurethane curing agents,
Stir and obtain B component.
Component A and B component with packing jar pack standby respectively, the water-based paint compositions is obtained, keeps away
Exempt from it is open in atmosphere.
By component A and B component according to parts by weight 100:25 ratio mixing, coating is obtained after coating crosslinking.
The mixed proportion of the component A and B component A selected by weight:B=100:25, it is computed NCO group and OH bases
The ratio of group is 1.25：1.
Water-based paint compositions test plate (panel) preparation method prepared by embodiment 1~5：
The SPCC coating steel plate water-based paint compositions with aqueous dual-component epoxy primer, surface drying 30 are used in the present invention
Minute, 80 DEG C dry 2 hours, test performance after room temperature environment is placed 7 days, and performance is as shown in table 1：
Table 1
As can be known from Table 1, longer pot-life is obtained, is advantageous to respect to the comparative sample of outsourcing, embodiment 1~5
Scale industrial production；Glossiness is higher, therefore outward appearance is more preferable than outsourcing comparative sample；Meanwhile weatherability can reach 1000
Hour, considerably beyond outsourcing comparative sample, it can allow face coat that there is more preferable protective and persistence.
Embodiment 6
(1) following components is uniformly mixed with mixer：(following components is in terms of parts by weight)
(2) and then with sand mill be sanded to fineness in below 10um, add following each component：
Above component high-speed stirred is uniformly used as component A.
(3) following components is uniformly mixed with mixer：
20.0 parts of propylene-glycol diacetate,
80.0 parts of BURNOCK DNW-5500 modified polyurethane curing agents,
Stir and obtain B component.
Component A and B component with packing jar pack standby respectively, the water-based paint compositions is obtained, keeps away
Exempt from it is open in atmosphere.
By component A and B component according to parts by weight 100:19 ratio mixing, coating is obtained after coating crosslinking.
The mixed proportion of the component A and B component A selected by weight:B=100:19, it is computed NCO group and OH bases
The ratio of group is 1.1：1.
Embodiment 7
(1) following components is uniformly mixed with mixer：(following components is in terms of parts by weight)
(2) and then with sand mill be sanded to fineness in below 10um, add following each component：
Above component high-speed stirred is uniformly used as component A.
(3) following components is uniformly mixed with mixer：
35.0 parts of propylene-glycol diacetate,
65.0 parts of 2655 modified polyurethane curing agents of Bayhydur XP,
Stir and obtain B component.
Component A and B component with packing jar pack standby respectively, the water-based paint compositions is obtained, keeps away
Exempt from it is open in atmosphere.
By component A and B component according to parts by weight 100:30 ratio mixing, coating is obtained after coating crosslinking.
The mixed proportion of the component A and B component A selected by weight:B=100:30, it is computed NCO group and OH bases
The ratio of group is 1.25：1.
Embodiment 8
(1) following components is uniformly mixed with mixer：(following components is in terms of parts by weight)
(2) and then with sand mill be sanded to fineness in below 10um, add following each component：
Above component high-speed stirred is uniformly used as component A.
(3) following components is uniformly mixed with mixer：
25 parts of propylene-glycol diacetate,
75 parts of 2655 modified polyurethane curing agents of Bayhydur XP,
Stir and obtain B component.
Component A and B component with packing jar pack standby respectively, the water-based paint compositions is obtained, keeps away
Exempt from it is open in atmosphere.
By component A and B component according to parts by weight 100:24 ratio mixing, coating is obtained after coating crosslinking.
The mixed proportion of the component A and B component A selected by weight:B=100:24, it is computed NCO group and OH bases
The ratio of group is 1.5：1.
Water-based paint compositions provided by the invention have that gloss height, good weatherability, pot-life be long, normal temperature solidified and ring
The characteristic of guarantor, when coordinating suitable cosolvent and wetting agent and defoamer, it is good further to obtain adhesive force, storage characteristics etc.
Water-based paint compositions.The water-based paint compositions of the present invention have preferable storage stability, and properties can reach
Performance required by solvent based coating at present, it is moderate, it can adapt to the demand of domestic market.
The water-based paint compositions of the present invention are a kind of for the outdoor engineering machinery used, the painting of rail traffic vehicles vehicle body
The topcoat paint of dress, institute's film forming have higher gloss, preferable weatherability, longer pot-life, excellent outward appearance, intact
Fall into.
The water-based paint compositions of the present invention are applied to the outdoor engineering machinery used, rail traffic vehicles car body coating
Topcoat, in the market coating obtained from being coated with the water-based paint compositions of the present invention and used water-based engineering
Machinery, the topcoat of rail traffic vehicles car body coating compare, and gloss can improve 5~10 degree (60 degree of angles), weather resistance
Improve 300~500 hours (QUV-B), pot-life can improve 1~2 hour.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, the embodiment that the present invention is enumerated can not give thoroughly all embodiments
To the greatest extent, it is every to belong to obvious changes or variations that technical scheme extends out still in protection model of the invention
The row enclosed.All documents referred in the present invention are all incorporated as referring in this application, independent just as a document
It is cited as with reference to such.
Claims (12)
- A kind of 1. water-based paint compositions, it is characterised in that：Include the component of following parts by weight：Component A includes the component of following parts by weight：40.0~70.0 parts of high hydroxyl value water-dispersed acrylic ester resin,10.0~40.0 parts of pigment,Acceptable 3.6~22.0 parts of coating additive on polymer science；B component includes the component of following parts by weight：65.0~100.0 parts of modified polyurethane curing agent.
- 2. water-based paint compositions according to claim 1, it is characterised in that：The A that the water-based paint compositions include Component also includes the component of following parts by weight：First 1.0~5.0 parts of cosolvent.
- 3. water-based paint compositions according to claim 2, it is characterised in that：The B that the water-based paint compositions include Component also includes the component of following parts by weight：Second 0.1~35.0 part of cosolvent.
- 4. water-based paint compositions according to claim 1, it is characterised in that：The B that the water-based paint compositions include Component also includes the component of following parts by weight：Second 0.1~35.0 part of cosolvent.
- 5. water-based paint compositions according to any one of claims 1 to 4, it is characterised in that：The high hydroxyl value water-dispersion type The hydroxyl value of acrylate is between 100~140, and glass transition temperature TG is below 30 DEG C, and particle diameter is 100~180nm, pH value Between 7.0~7.5；The pigment is at least one of titanium dioxide, carbon black, organic pigment.
- 6. the water-based paint compositions according to Claims 2 or 3, it is characterised in that：First cosolvent refers to boiling point In 180~280 DEG C of alcohol ethers solvent.
- 7. water-based paint compositions according to claim 6, it is characterised in that：The alcohol ethers solvent is diethylene glycol second Ether acetic acid ester, butyl acetic acid esters, diethylene glycol hexyl ether, diethylene glycol diethyl ether, propylene-glycol diacetate, diethyl two At least one of alcohol butyl oxide, dimethyl ether, Dipropylene glycol mono-n-butyl Ether, Tri(propylene glycol)butyl ether,mixture of isomers.
- 8. water-based paint compositions according to any one of claims 1 to 4, it is characterised in that：It can be connect on the polymer science The coating additive received includes the component of following parts by weight：
- 9. water-based paint compositions according to any one of claims 1 to 4, it is characterised in that：It can be connect on the polymer science The coating additive received includes the component of following parts by weight：
- 10. the water-based paint compositions according to claim 3 or 4, it is characterised in that：Second cosolvent is ether-ether At least one of class, dibasic acid esters type organic solvent.
- 11. water-based paint compositions according to claim 10, it is characterised in that：Second cosolvent is propane diols first At least one of ether acetate, propylene-glycol diacetate, diethylene glycol ether acetic acid esters.
- A kind of 12. coating prepared by 1 to 11 any described water-based paint compositions of usage right requirement, it is characterised in that：By A Component is with B component according to parts by weight 100:The ratio mixing of (15~30), the ratio of NCO group and OH groups be (1~ 1.5)：1, obtain the coating after coating crosslinking.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250930A (en) * | 2018-01-30 | 2018-07-06 | 河北晨阳工贸集团有限公司 | A kind of agricultural machinery environment protecting water-based paint and preparation method |
| CN108864918A (en) * | 2018-07-30 | 2018-11-23 | 立邦涂料（中国）有限公司 | A kind of high-performance water-based two-component finish compositions, Preparation method and use |
| CN111019504A (en) * | 2019-12-20 | 2020-04-17 | 立邦工业涂料(上海)有限公司 | Waterborne polyurethane coating composition and application thereof |
| CN113265189A (en) * | 2021-04-19 | 2021-08-17 | 株洲市九华新材料涂装实业有限公司 | Water-based acrylic polyurethane finish paint and preparation method and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250930A (en) * | 2018-01-30 | 2018-07-06 | 河北晨阳工贸集团有限公司 | A kind of agricultural machinery environment protecting water-based paint and preparation method |
| CN108864918A (en) * | 2018-07-30 | 2018-11-23 | 立邦涂料（中国）有限公司 | A kind of high-performance water-based two-component finish compositions, Preparation method and use |
| CN111019504A (en) * | 2019-12-20 | 2020-04-17 | 立邦工业涂料(上海)有限公司 | Waterborne polyurethane coating composition and application thereof |
| CN111019504B (en) * | 2019-12-20 | 2022-02-15 | 立邦工业涂料(上海)有限公司 | Waterborne polyurethane coating composition and application thereof |
| CN113265189A (en) * | 2021-04-19 | 2021-08-17 | 株洲市九华新材料涂装实业有限公司 | Water-based acrylic polyurethane finish paint and preparation method and application thereof |
| CN113265189B (en) * | 2021-04-19 | 2022-06-07 | 株洲市九华新材料涂装实业有限公司 | Water-based acrylic polyurethane finish paint and preparation method and application thereof |
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Application publication date: 20180126 |