CN108624213A - A kind of double-layer environment protection automobile coating and preparation method thereof based on aqueous polyurethane - Google Patents
A kind of double-layer environment protection automobile coating and preparation method thereof based on aqueous polyurethane Download PDFInfo
- Publication number
- CN108624213A CN108624213A CN201810570978.XA CN201810570978A CN108624213A CN 108624213 A CN108624213 A CN 108624213A CN 201810570978 A CN201810570978 A CN 201810570978A CN 108624213 A CN108624213 A CN 108624213A
- Authority
- CN
- China
- Prior art keywords
- parts
- aqueous
- automobile coating
- agent
- polyurethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
Abstract
The present invention relates to a kind of double-layer environment protection automobile coating and preparation method thereof based on aqueous polyurethane, belongs to automobile coating technical field.Solves the technical issues of how a kind of double-layer environment protection automobile coating and preparation method thereof based on aqueous polyurethane is provided.The automobile coating of the present invention, including internal layer paint and cover warnish；Internal layer paint is made of aqueous polyurethane, polyurethane solid-solid phase change material, aqueous levelling agent, aqueous defoamer, aqueous wetting agent, anti-settling agent, dispersant and curing agent；Cover warnish is made of aqueous polyurethane, water-base fluorocarbon emulsion, aqueous levelling agent, aqueous defoamer, anti-settling agent, thickener, aqueous wetting agent, alundum (Al2O3), titanium dioxide, dimethicone, isothiazolinone and curing agent.The automobile coating not only has the advantage that wearability is good, impact resistance is good, strong adhesive force, durability are good, and can realize strong weatherability, and safety and environmental protection.
Description
Technical field
The invention belongs to automobile coating technical fields, and in particular to a kind of double-layer environment protection automobile coating based on aqueous polyurethane and
Preparation method.
Background technology
Automobile coating is a kind of protective film being sprayed on automobile, plays protection and decorative effect.Different automobile coating effects
Difference, there are three types of currently used automobile coatings：Common paint, metallic paint and opalescent lacquers.The main component commonly painted is resin, pigment
And additive, spraying process is fairly simple, at low cost, but is easy to fade, unsightly.Metallic paint is on the basis of common paint
It is added to metallic particles, also to spray last layer varnish above after having sprayed to protect metallic particles not to be damaged, and keep light
Brightness, lacquer spraying technique are complicated.Opalescent lacquers is added to very thin mica grain on the basis of common paint, and color is more bright-colored, still
Emerylite is somewhat expensive, complex procedures.
Automobile during use, is chronically exposed in various rugged environments, and summer temp is high, winter temperature and pole
It is low, not only cause the temperature of environment inside car uncomfortable, and be easy to cause vehicle body aging, discoloration, cracking.Also, existing automobile
Paint is based on solvent type, and a large amount of volatile organic compounds cause serious pollution in coating process to ecological environment, together
When great harm also is brought to human health.As people are to the pursuit of higher quality of the life and carrying for the ecological awareness
Height, automobile coating need more fully to meet the complicated adverse circumstances that automobile uses and have the characteristics of safety and environmental protection, in view of this,
There is an urgent need for develop a kind of automobile coating of the strong safety and environmental protection again of weatherability.
Invention content
In view of this, the object of the present invention is to provide a kind of double-layer environment protection automobile coating of aqueous polyurethane and its preparation sides
Method, the automobile coating can ensure the basic performance demand of automobile coating, and wearability is good, impact resistance is good, strong adhesive force, durability
It is good, and can realize strong weatherability, and safety and environmental protection.
Double-layer environment protection automobile coating based on aqueous polyurethane, including internal layer paint and cover warnish；
The composition and parts by weight of the internal layer paint be：
The phase transition temperature of the polyurethane solid-solid phase change material is 40-55 DEG C；
The composition and parts by weight of the cover warnish be：
Preferably, the pigment in the cover warnish also containing 5-20 parts by weight.
Preferably, the aqueous levelling agent is BYK-333.
Preferably, the aqueous defoamer is BYK-093.
Preferably, the anti-settling agent is BYK-E420.
Preferably, the thickener is association type polyurethane thickener.
Preferably, the aqueous wetting agent is BYK-307 or BYK-377.
Preferably, the dispersant is BYK-190 or BYK-182.
Preferably, the curing agent is Polyisocyanate esters curing agent.
The preparation method of the above-mentioned double-layer environment protection automobile coating based on aqueous polyurethane, steps are as follows：
Step 1: by 60-80 parts of aqueous polyurethanes, 15-30 parts of polyurethane solid-solid phase change materials, 3-5 parts of aqueous levelling agents,
2.5-4 parts of aqueous defoamers, 4-8 parts of aqueous wetting agents, 1-3 portions of anti-settling agents and 2-2.5 parts of dispersants are uniformly mixed, then
20-30 parts of curing agent are added, continues to be uniformly mixed, obtains internal layer paint；
Step 2: by 100 parts of aqueous polyurethanes, 10-20 parts of water-base fluorocarbon emulsions, 4-6 parts of aqueous levelling agents, 5-8 parts of water
Property antifoaming agent, 0.5-1 portions of anti-settling agents, 3-6 parts of thickeners, 3-5 parts of aqueous wetting agents, 7-10 parts of alundum (Al2O3)s, 15-22 parts of titaniums
White powder, 2-5 part dimethicone and 0.1-2 parts of isothiazolinone, are uniformly mixed, and 30-40 parts of curing agent are then added, after
It is continuous to be uniformly mixed, obtain cover warnish.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention the double-layer environment protection automobile coating based on aqueous polyurethane not only have wearability is good, impact resistance is good,
The good advantage of strong adhesive force, durability, and can realize strong weatherability, and safety and environmental protection；Through experimental tests, impact strength exist
57-63kg/cm, ageing-resistant experiment 1000h is not blistering, does not peel off, and gloss retention is in 94-96%, static adhesive force after scraping
≤ 1, -35 DEG C to 80 DEG C without dusting, without fission, loss of gloss≤5%.
The double-layer environment protection automobile coating based on aqueous polyurethane of the present invention adds polyurethane solid-solid phase change material, when automobile exists
When applied at elevated temperature, can reduction bodywork surface temperature appropriate, and then appropriateness reduce vapour vehicle interior temperature.
The preparation method of the double-layer environment protection automobile coating based on aqueous polyurethane of the present invention is simple to operation, and to human body and
Environment fanout free region.
Specific implementation mode
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions are only the feature and advantage further illustrated the present invention, rather than to the claims in the present invention
Limitation.
Double-layer environment protection automobile coating based on aqueous polyurethane, including internal layer paint and cover warnish；
Internal layer paint by 60-80 parts of aqueous polyurethanes, 15-30 parts of polyurethane solid-solid phase change materials, 3-5 parts of aqueous levelling agents,
2.5-4 parts of aqueous defoamers, 4-8 parts of aqueous wetting agents, 1-3 portions of anti-settling agents, 2-2.5 parts of dispersants and 20-30 parts of curing agent groups
At；
Cover warnish by 100 parts of aqueous polyurethanes, 10-20 parts of water-base fluorocarbon emulsions, 4-6 parts of aqueous levelling agents, 5-8 parts it is aqueous
Antifoaming agent, 0.5-1 portion anti-settling agent, 3-6 parts of thickeners, 3-5 parts of aqueous wetting agents, 7-10 parts of alundum (Al2O3)s, 15-22 parts of titanium whites
Powder, 2-5 part dimethicone, 0.1-2 parts of isothiazolinone and 30-40 parts of curing agent compositions.
In the automobile coating of the present invention, the pigment of 5-20 parts by weight can also be contained in cover warnish.
The various raw materials of the present invention are the prior art, can be commercially available, wherein：Waterborne polyurethane resin is without spy
Different limitation, such as aromatic waterborne polyurethane and water-based aliphaic polyurethane, solid content 25%-40%, grain size is that 200-300 is micro-
Rice, such as Bayhydrol.XP2470 resins.Polyurethane solid-solid phase change material is not particularly limited, and meets phase transition temperature in 40-55
DEG C, such as 201210124385.3 a kind of high-strength polyurethane solid-solid phase-change energy-storage material of Chinese patent and preparation method thereof
The phase-change material of preparation.Water-base fluorocarbon emulsion is not particularly limited, and general fluorine content is 8-10wt%, solid content 40-
50wt% commonly uses CF-801.Aqueous levelling agent is organosilicon levelling agent, acrylic type levelling agent etc., commonly uses BYK-333.It is aqueous
Antifoaming agent is organic silicon antifoaming agent, polyacrylic antifoaming agent, phosphoric acid vinegar class antifoaming agent, silylated polyether class antifoaming agent, alkynes two
Alcohol defoaming agent etc. commonly uses BYK-093.Anti-settling agent is commonly used for BYK-E420.Thickener is commonly used for association type polyurethane thickener.
Aqueous wetting agent is commonly used for BYK-307 or BYK-377.Dispersant is commonly used for BYK-19 or BYK-182.Curing agent is polyisocyanate
Esters curing agent, such as Bayhydur3100, bayhydurXP2655, BayhydurXP2547.Alundum (Al2O3) and titanium dioxide
Grain size it is the smaller the better, at least 500 mesh.
The preparation method of the above-mentioned double-layer environment protection automobile coating based on aqueous polyurethane, steps are as follows：
Step 1: by 60-80 parts of aqueous polyurethanes, 15-30 parts of polyurethane solid-solid phase change materials, 3-5 parts of aqueous levelling agents,
2.5-4 parts of aqueous defoamers, 4-8 parts of aqueous wetting agents, 1-3 portions of anti-settling agents and 2-2.5 parts of dispersants are uniformly mixed, then
20-30 parts of curing agent are added, continues to be uniformly mixed, obtains internal layer paint；
Step 2: by 100 parts of aqueous polyurethanes, 10-20 parts of water-base fluorocarbon emulsions, 4-6 parts of aqueous levelling agents, 5-8 parts of water
Property antifoaming agent, 0.5-1 portions of anti-settling agents, 3-6 parts of thickeners, 3-5 parts of aqueous wetting agents, 7-10 parts of alundum (Al2O3)s, 15-22 parts of titaniums
White powder, 2-5 part dimethicone and 0.1-2 parts of isothiazolinone, are uniformly mixed, and 30-40 parts of curing agent are then added, after
It is continuous to be uniformly mixed, obtain cover warnish；
Step 3: when in use, internal layer paint is first sprayed on surface to be sprayed, after solidification, spraying is painted in internal layer
Cover warnish after the completion of spraying, obtains automobile coating.
In the preparation method of the present invention, stirring generally uses homogenizer, speed of agitator 1000-1200rpm, when stirring
Between by concrete condition determine, stir evenly.
It further illustrates the present invention with reference to embodiments.
Embodiment 1
Double-layer environment protection automobile coating based on aqueous polyurethane, including internal layer paint and cover warnish；
Internal layer paint is by 60 parts of aqueous polyurethanes (Bayhydrol.XP2470), 15 parts of polyurethane solid-solid phase change material (phase transformations
Temperature 45 C), 3 parts of aqueous levelling agent BYK-333,2.5 parts of aqueous defoamer BYK-093,4 parts of aqueous wetting agent BYK-307,1
Part anti-settling agent BYK-E420,2 parts of dispersant B YK-190 and 20 parts of curing agent Bayhydur3100 compositions.
Cover warnish is by 100 parts of aqueous polyurethanes (Bayhydrol.XP2470), 10 parts of water-base fluorocarbon emulsions (CF-801), 4
Part aqueous levelling agent BYK-333,5 parts of aqueous defoamer BYK-093,0.5 part of anti-settling agent BYK-E420,3 parts of association type polyurethanes
Thickener, 3 parts of aqueous wetting agent BYK-307,7 parts of alundum (Al2O3)s, 15 parts of titanium dioxides, 2 parts of dimethicones, 0.1 part of different thiophene
Oxazoline ketone and 30 parts of curing agent Bayhydur3100.
The preparation method of the above-mentioned double-layer environment protection automobile coating based on aqueous polyurethane, steps are as follows：
Step 1: according to the formula of internal layer paint, by aqueous polyurethane, polyurethane solid-solid phase change material, aqueous levelling agent, water
Property antifoaming agent, aqueous wetting agent, anti-settling agent and dispersant be uniformly mixed, curing agent is then added, continues to be stirred
It is even, obtain internal layer paint；
Step 2: according to outer layer paint formula, by aqueous polyurethane, water-base fluorocarbon emulsion, aqueous levelling agent, aqueous defoaming
Agent, anti-settling agent, thickener, aqueous wetting agent, alundum (Al2O3), titanium dioxide, dimethicone and isothiazolinone, are stirred
Uniformly, curing agent is then added, continues to be uniformly mixed, obtains cover warnish.
Embodiment 2
Double-layer environment protection automobile coating based on aqueous polyurethane, including internal layer paint and cover warnish；
Internal layer paint is by 80 parts of aqueous polyurethanes (Bayhydrol.XP2470), 30 parts of polyurethane solid-solid phase change material (phase transformations
40 DEG C of temperature), 5 parts of aqueous levelling agent BYK-333,4 parts of aqueous defoamer BYK-093,8 parts of aqueous wetting agent BYK-307,3 parts
Anti-settling agent BYK-E420,2.5 parts of dispersant B YK-190 and 30 parts of curing agent Bayhydur3100 compositions.
Cover warnish is by 100 parts of aqueous polyurethanes (Bayhydrol.XP2470), 20 parts of water-base fluorocarbon emulsions (CF-801), 6
Part aqueous levelling agent BYK-333,8 parts of aqueous defoamer BYK-093,1 part of anti-settling agent BYK-E420,6 parts of association type polyurethanes
Thick dose, 5 parts of aqueous wetting agent BYK-307,10 parts of alundum (Al2O3)s, 22 parts of titanium dioxides, 5 parts of dimethicones, 2 parts of isothiazolines
Ketone and 40 parts of curing agent Bayhydur3100.
The preparation method of the above-mentioned double-layer environment protection automobile coating based on aqueous polyurethane, steps are as follows：
Step 1: according to the formula of internal layer paint, by aqueous polyurethane, polyurethane solid-solid phase change material, aqueous levelling agent, water
Property antifoaming agent, aqueous wetting agent, anti-settling agent and dispersant be uniformly mixed, curing agent is then added, continues to be stirred
It is even, obtain internal layer paint；
Step 2: according to outer layer paint formula, by aqueous polyurethane, water-base fluorocarbon emulsion, aqueous levelling agent, aqueous defoaming
Agent, anti-settling agent, thickener, aqueous wetting agent, alundum (Al2O3), titanium dioxide, dimethicone and isothiazolinone, are stirred
Uniformly, curing agent is then added, continues to be uniformly mixed, obtains cover warnish.
Embodiment 3
Double-layer environment protection automobile coating based on aqueous polyurethane, including internal layer paint and cover warnish；
Internal layer paint is by 70 parts of aqueous polyurethanes (Bayhydrol.XP2470), 20 parts of polyurethane solid-solid phase change material (phase transformations
55 DEG C of temperature), 4 parts of aqueous levelling agent BYK-333,3 parts of aqueous defoamer BYK-093,5 parts of aqueous wetting agent BYK-307,2 parts
Anti-settling agent BYK-E420,2.2 parts of dispersant B YK-190 and 25 parts of curing agent Bayhydur3100 compositions.
Cover warnish is by 100 parts of aqueous polyurethanes (Bayhydrol.XP2470), 15 parts of water-base fluorocarbon emulsions (CF-801), 5
Part aqueous levelling agent BYK-333,6 parts of aqueous defoamer BYK-093,0.8 part of anti-settling agent BYK-E420,4 parts of association type polyurethanes
Thickener, 4 parts of aqueous wetting agent BYK-307,8 parts of alundum (Al2O3)s, 18 parts of titanium dioxides, 4 parts of dimethicones, 1 part of isothiazole
Quinoline ketone and 35 parts of curing agent Bayhydur3100.
The preparation method of the above-mentioned double-layer environment protection automobile coating based on aqueous polyurethane, steps are as follows：
Step 1: according to the formula of internal layer paint, by aqueous polyurethane, polyurethane solid-solid phase change material, aqueous levelling agent, water
Property antifoaming agent, aqueous wetting agent, anti-settling agent and dispersant be uniformly mixed, curing agent is then added, continues to be stirred
It is even, obtain internal layer paint；
Step 2: according to outer layer paint formula, by aqueous polyurethane, water-base fluorocarbon emulsion, aqueous levelling agent, aqueous defoaming
Agent, anti-settling agent, thickener, aqueous wetting agent, alundum (Al2O3), titanium dioxide, dimethicone and isothiazolinone, are stirred
Uniformly, curing agent is then added, continues to be uniformly mixed, obtains cover warnish.
Embodiment 4
Double-layer environment protection automobile coating based on aqueous polyurethane, including internal layer paint and cover warnish；
Internal layer paint is by 75 parts of aqueous polyurethanes (Bayhydrol.XP2470), 25 parts of polyurethane solid-solid phase change material (phase transformations
Temperature 50 C), 4.5 parts of aqueous levelling agent BYK-333,3.5 parts of aqueous defoamer BYK-093,7 parts of aqueous wetting agent BYK-307,
2.5 parts of anti-settling agent BYK-E420,2.2 parts of dispersant B YK-190 and 25 parts of curing agent Bayhydur3100 compositions.
Cover warnish by 100 parts of aqueous polyurethanes (Bayhydrol.XP2470), 15 parts of water-base fluorocarbon emulsions (CF-801),
5.5 parts of aqueous levelling agent BYK-333,7 parts of aqueous defoamer BYK-093,0.8 part of anti-settling agent BYK-E420,5 partsAssociation typePolyurethane
Thickener, 4.5 parts of aqueous wetting agent BYK-307,9 parts of alundum (Al2O3)s, 19 parts of titanium dioxides, 3.5 parts of dimethicones, 1 part it is different
Thiazolinone and 37 parts of curing agent Bayhydur3100.
The preparation method of the above-mentioned double-layer environment protection automobile coating based on aqueous polyurethane, steps are as follows：
Step 1: according to the formula of internal layer paint, by aqueous polyurethane, polyurethane solid-solid phase change material, aqueous levelling agent, water
Property antifoaming agent, aqueous wetting agent, anti-settling agent and dispersant be uniformly mixed, curing agent is then added, continues to be stirred
It is even, obtain internal layer paint；
Step 2: according to outer layer paint formula, by aqueous polyurethane, water-base fluorocarbon emulsion, aqueous levelling agent, aqueous defoaming
Agent, anti-settling agent, thickener, aqueous wetting agent, alundum (Al2O3), titanium dioxide, dimethicone and isothiazolinone, are stirred
Uniformly, curing agent is then added, continues to be uniformly mixed, obtains cover warnish.
Comparative example 1
Double-layer environment protection automobile coating based on aqueous polyurethane, including internal layer paint and cover warnish；
Internal layer paint is by 60 parts of aqueous polyurethanes (Bayhydrol.XP2470), 3 parts of aqueous levelling agent BYK-333,2.5 parts of water
Property antifoaming agent BYK-093,4 parts of aqueous wetting agent BYK-307,1 part of anti-settling agent BYK-E420,2 parts of dispersant B YK-190 and 20 parts
Curing agent Bayhydur3100 compositions.
Cover warnish is by 100 parts of aqueous polyurethanes (Bayhydrol.XP2470), 10 parts of water-base fluorocarbon emulsions (CF-801), 4
Part aqueous levelling agent BYK-333,5 parts of aqueous defoamer BYK-093,0.5 part of anti-settling agent BYK-E420,3 parts of association type polyurethanes
Thickener, 3 parts of aqueous wetting agent BYK-307,7 parts of alundum (Al2O3)s, 15 parts of titanium dioxides, 2 parts of dimethicones, 0.1 part of different thiophene
Oxazoline ketone and 30 parts of curing agent Bayhydur3100.
The preparation method of the above-mentioned double-layer environment protection automobile coating based on aqueous polyurethane, steps are as follows：
Step 1: according to the formula of internal layer paint, by aqueous polyurethane, aqueous levelling agent, aqueous defoamer, aqueous wetting
Agent, anti-settling agent and dispersant are uniformly mixed, and curing agent is then added, and continue to be uniformly mixed, and obtain internal layer paint；
Step 2: according to outer layer paint formula, by aqueous polyurethane, water-base fluorocarbon emulsion, aqueous levelling agent, aqueous defoaming
Agent, anti-settling agent, thickener, aqueous wetting agent, alundum (Al2O3), titanium dioxide, dimethicone and isothiazolinone, are stirred
Uniformly, curing agent is then added, continues to be uniformly mixed, obtains cover warnish.
Comparative example 2
Double-layer environment protection automobile coating based on aqueous polyurethane, including internal layer paint and cover warnish；
Internal layer paint is by 60 parts of aqueous polyurethanes (Bayhydrol.XP2470), 15 parts of polyurethane solid-solid phase change material (phase transformations
Temperature 45 C), 3 parts of aqueous levelling agent BYK-333,2.5 parts of aqueous defoamer BYK-093,4 parts of aqueous wetting agent BYK-307,1
Part anti-settling agent BYK-E420,2 parts of dispersant B YK-190 and 20 parts of curing agent Bayhydur3100 compositions.
Cover warnish is by 100 parts of aqueous polyurethanes (Bayhydrol.XP2470), 4 parts of aqueous levelling agent BYK-333,5 parts of water
Property antifoaming agent BYK-093,0.5 part of anti-settling agent BYK-E420,3 parts of association type polyurethane thickeners, 3 parts of aqueous wetting agent BYK-
307,7 parts of alundum (Al2O3)s, 15 parts of titanium dioxides, 0.1 part of isothiazolinone and 30 parts of curing agent Bayhydur3100.
The preparation method of the above-mentioned double-layer environment protection automobile coating based on aqueous polyurethane, steps are as follows：
Step 1: according to the formula of internal layer paint, by aqueous polyurethane, polyurethane solid-solid phase change material, aqueous levelling agent, water
Property antifoaming agent, aqueous wetting agent, anti-settling agent and dispersant be uniformly mixed, curing agent is then added, continues to be stirred
It is even, obtain internal layer paint；
Step 2: according to outer layer paint formula, by aqueous polyurethane, aqueous levelling agent, aqueous defoamer, anti-settling agent, thickening
Agent, aqueous wetting agent, alundum (Al2O3), titanium dioxide and isothiazolinone, are uniformly mixed, and curing agent is then added, and continue
It is uniformly mixed, obtains cover warnish.
The comprehensive performance of the automobile coating of embodiment 1-4 and comparative example 1-2 is detected, impact resistance uses national standard GB/
T1732-1993 is detected, and resistance to ag(e)ing is detected using GB/T1865-1997, and dry Scratch Resistance uses AS/NZS 1580.403.1-
1999 detections, static adhesive force are detected using GB/T9286-1998.The detection I of weatherability is will to be coated with automobile coating iron plate to be placed in
1000h in subzero 35 DEG C of environment is turned to characterization result with the apparent change of automobile coating, and detection II will be coated with automobile coating iron plate and be placed in
100h in 30 DEG C of environment is warming up to 80 DEG C with 5 DEG C/30min, and characterization result is turned to the apparent change of automobile coating.As a result such as table 1
It is shown.
The performance characterization of the automobile coating of table 1 embodiment 1-4 and comparative example 1-2
As it can be seen from table 1 the present invention the double-layer environment protection automobile coating based on aqueous polyurethane not only have wearability it is good,
The advantage that impact resistance is good, strong adhesive force, durability are good, and can realize strong weatherability, and safety and environmental protection.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. the double-layer environment protection automobile coating based on aqueous polyurethane, which is characterized in that including internal layer paint and cover warnish；
The composition and parts by weight of the internal layer paint be：
The phase transition temperature of the polyurethane solid-solid phase change material is 40-55 DEG C；
The composition and parts by weight of the cover warnish be：
2. the double-layer environment protection automobile coating according to claim 1 based on aqueous polyurethane, which is characterized in that the cover warnish
In pigment also containing 5-20 parts by weight.
3. the double-layer environment protection automobile coating according to claim 1 based on aqueous polyurethane, which is characterized in that the aqueous flow
Flat agent is BYK-333.
4. the double-layer environment protection automobile coating according to claim 1 based on aqueous polyurethane, which is characterized in that described aqueous to disappear
Infusion is BYK-093.
5. the double-layer environment protection automobile coating according to claim 1 based on aqueous polyurethane, which is characterized in that the anti-settling agent
For BYK-E420.
6. the double-layer environment protection automobile coating according to claim 1 based on aqueous polyurethane, which is characterized in that the thickener
For association type polyurethane thickener.
7. the double-layer environment protection automobile coating according to claim 1 based on aqueous polyurethane, which is characterized in that the aqueous profit
Humectant is BYK-307 or BYK-377.
8. the double-layer environment protection automobile coating according to claim 1 based on aqueous polyurethane, which is characterized in that the dispersant
For BYK-190 or BYK-182.
9. the double-layer environment protection automobile coating according to claim 1 based on aqueous polyurethane, which is characterized in that the curing agent
For Polyisocyanate esters curing agent.
10. the preparation method of the double-layer environment protection automobile coating based on aqueous polyurethane described in claim 1-9 any one, special
Sign is that steps are as follows：
Step 1: by 60-80 parts of aqueous polyurethanes, 15-30 parts of polyurethane solid-solid phase change materials, 3-5 parts of aqueous levelling agents, 2.5-
4 parts of aqueous defoamers, 4-8 parts of aqueous wetting agents, 1-3 portions of anti-settling agents and 2-2.5 parts of dispersants are uniformly mixed, and are then added
20-30 parts of curing agent, continue to be uniformly mixed, and obtain internal layer paint；
Step 2: 100 parts of aqueous polyurethanes, 10-20 parts of water-base fluorocarbon emulsions, 4-6 parts of aqueous levelling agents, 5-8 parts aqueous are disappeared
Infusion, 0.5-1 portion anti-settling agent, 3-6 parts of thickeners, 3-5 parts of aqueous wetting agents, 7-10 parts of alundum (Al2O3)s, 15-22 parts of titanium whites
Powder, 2-5 part dimethicone and 0.1-2 parts of isothiazolinone, are uniformly mixed, and 30-40 parts of curing agent are then added, and continue
It is uniformly mixed, obtains cover warnish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810570978.XA CN108624213A (en) | 2018-06-05 | 2018-06-05 | A kind of double-layer environment protection automobile coating and preparation method thereof based on aqueous polyurethane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810570978.XA CN108624213A (en) | 2018-06-05 | 2018-06-05 | A kind of double-layer environment protection automobile coating and preparation method thereof based on aqueous polyurethane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108624213A true CN108624213A (en) | 2018-10-09 |
Family
ID=63691282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810570978.XA Pending CN108624213A (en) | 2018-06-05 | 2018-06-05 | A kind of double-layer environment protection automobile coating and preparation method thereof based on aqueous polyurethane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108624213A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020237440A1 (en) * | 2019-05-24 | 2020-12-03 | 河北比尔尼克新材料科技股份有限公司 | Water-based paint for outdoor equipment, preparation method therefor and application thereof, and water-based paint for transportation vehicles, preparation method therefor and application thereof |
| CN114806373A (en) * | 2022-05-10 | 2022-07-29 | 浙江禾欣新材料有限公司 | Phase change energy storage coating for automobile cab and preparation process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120913A (en) * | 2011-04-12 | 2011-07-13 | 北京虹霞正升涂料有限责任公司 | Water-based polyurethane paint for protecting windmill generator blade |
-
2018
- 2018-06-05 CN CN201810570978.XA patent/CN108624213A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120913A (en) * | 2011-04-12 | 2011-07-13 | 北京虹霞正升涂料有限责任公司 | Water-based polyurethane paint for protecting windmill generator blade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020237440A1 (en) * | 2019-05-24 | 2020-12-03 | 河北比尔尼克新材料科技股份有限公司 | Water-based paint for outdoor equipment, preparation method therefor and application thereof, and water-based paint for transportation vehicles, preparation method therefor and application thereof |
| CN114806373A (en) * | 2022-05-10 | 2022-07-29 | 浙江禾欣新材料有限公司 | Phase change energy storage coating for automobile cab and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1347024B1 (en) | Coating composition drying in the air containing silane | |
| KR101361811B1 (en) | Epoxy silane oligomer and coating composition containing same | |
| CN107022300B (en) | A kind of aqueous chromium-free zinc aluminum anticorrosive paint and preparation method thereof | |
| CN102898929B (en) | Priming/finishing paint applied to galvanized steel sheet | |
| CN107474658B (en) | water-based environment-friendly thermochromic crack paint and preparation method thereof | |
| CN105670457B (en) | It is coated on the water paint of metal surface | |
| CN103725146A (en) | Protective coating of mirror back of water-based aluminum mirror capable of being dried at extremely high speed | |
| CN106349899B (en) | Aqueous automobile vehicle bridge paint and preparation method thereof | |
| CN107141425A (en) | A kind of baking vanish aqueous epoxy resins and preparation method and application | |
| CN109370411A (en) | A kind of acrylic resin modified aqueous industrial coating of fluorine-silicon polyurethane | |
| CN107652729A (en) | A kind of municipal environment-friendly type aqueous protective paint of iron guardrail and preparation method thereof | |
| CN102002288A (en) | Water-based environment friendly metallic paint and preparation method thereof | |
| CN112831265A (en) | PU (polyurethane) coating and application thereof | |
| CN108003770A (en) | A kind of water-based crackle paint | |
| CN108912995B (en) | Environment-friendly water-based two-component polyurethane anticorrosive finish paint and preparation method thereof | |
| CN108624213A (en) | A kind of double-layer environment protection automobile coating and preparation method thereof based on aqueous polyurethane | |
| CN102816507A (en) | Highly weather resistant elastic handfeel paint | |
| CN108329824A (en) | A kind of aqueous light UV solidification aluminium paint, preparation method and its application method | |
| CN111334160A (en) | Water-based anticorrosive primer and preparation method thereof | |
| WO2016045406A1 (en) | Method for preparing two-component waterborne polyurethane modified alkyd wood varnish | |
| CN105778641B (en) | Polyvinyl fluoride paint, double-layer coating and forming method thereof | |
| CN105131763A (en) | Water paint for wood furniture and preparation method thereof | |
| CN104194549A (en) | Water-base paint used for indoor woodware | |
| CN105001766A (en) | Elevator fast-drying paint | |
| KR20100067895A (en) | Water-soluble paint composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181009 |
|
| WD01 | Invention patent application deemed withdrawn after publication |