CN107523203A - A kind of double-component aqueous acroleic acid polyurethane coating and preparation method thereof - Google Patents
A kind of double-component aqueous acroleic acid polyurethane coating and preparation method thereof Download PDFInfo
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- CN107523203A CN107523203A CN201710871441.2A CN201710871441A CN107523203A CN 107523203 A CN107523203 A CN 107523203A CN 201710871441 A CN201710871441 A CN 201710871441A CN 107523203 A CN107523203 A CN 107523203A
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- polyurethane coating
- component aqueous
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of double-component aqueous acroleic acid polyurethane coating and preparation method thereof, belong to technical field of coatings, solve technical problem of the existing double-component aqueous acroleic acid polyurethane coating without higher film performance, double-component aqueous acroleic acid polyurethane coating includes host and curing agent, and host includes 80 100 parts of water-based hydroxyl acrylic acid dispersions, 13 parts of defoamers, 13 parts of dispersants, 13 parts of wetting agents, 30 40 parts of titanium dioxides, 13 parts of carbon blacks, 45 parts of deionized waters, 35 parts of cosolvents, 0.5 1 parts of explosion-proof infusions and 0.5 1 parts of thickeners；Curing agent includes 30 50 parts of aqueous polyisocyanate curing agents, 5 10 parts of PMA and 5 10 part of DMM.
Description
Technical field
The invention belongs to technical field of coatings, more particularly to a kind of double-component aqueous acroleic acid polyurethane coating and its system
Preparation Method.
Background technology
In recent years, China put into effect in succession it is multiple be related to coating and the environmentally friendly law and standard of application, especially at 2015 2
Month 1 day coating consumption tax implemented and the charges for disposing pollutants that will implement, even more promote development and the product of water paint technology
Popularization and application.Bi-component waterborne acroleic acid polyurethane coating has construction VOC emission amount low, meets environmental protection standard, coating machinery
Function admirable, coating film gloss is high, protects the features such as light colour retention is excellent, is accepted extensively by market, but higher film performance
Bi-component waterborne acroleic acid polyurethane coating be not developed always.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of double-component aqueous acroleic acid polyurethane coating and its system
Preparation Method, solve technical problem of the existing double-component aqueous acroleic acid polyurethane coating without higher film performance.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of double-component aqueous acroleic acid polyurethane
Coating, including host and curing agent, the host include 80-100 part water-based hydroxyls acrylic acid dispersion, 1-3 parts defoamer, 1-
3 parts of dispersants, 1-3 parts wetting agent, 30-40 parts titanium dioxide, 1-3 parts carbon black, 4-5 parts deionized water, 3-5 parts cosolvent, 0.5-1
The explosion-proof infusion of part and 0.5-1 part thickeners；The curing agent includes 30-50 parts aqueous polyisocyanate curing agent, 5-10 parts PMA
With 5-10 parts DMM.
Further, a kind of preparation method of double-component aqueous acroleic acid polyurethane coating, comprises the following steps：
First, take host and curing agent to be mixed with 5: 1 mass ratio, 3~5min be sufficiently stirred using mixer,
10min defoamings are stood, 2%~2.5% deionized water is added and stirs, 10min activation is stood, is made double-component aqueous third
Olefin(e) acid polyurethane coating.
Beneficial effects of the present invention are：As most of moisture is evaporated, water-based hydroxyl acrylic acid dispersion and water-based polyisocyanate
Cyanate curing agent contact and it is close to each other form tightly packed body, the further evaporation and condensation of moisture is into hexagonal structure, now
For physical film deposition.Continue to condense, the polyureas temporary protection film outside water-based polyisocyanates has been totally disrupted, now water-based
Hydroxyl acrylic aqueous dispersion-water of OH and residual start in large quantities with aqueous polyisocyanate curing agent-NCO group
Crosslink reaction and form the homogeneous, film of completion of cure.Water-based polyisocyanates particle size dispersion is smaller to divide with water soluble acrylic acid
Granular media-OH contact probability is bigger, and more fully, thoroughly, the coating film gloss of formation, mist shadow, hardness, chemicals-resistant are all for reaction
It is significantly improved.Water-based hydroxyl acrylic acid dispersion is used water-based polyisocyanates to be equipped with, by changing water for main film forming matter
Property polyisocyanates dispersive property improve coating film gloss, clarity.There is good mechanical performance, excellent dress after the coating film forming
Decorations property, permanent guarantor's light colour retention, there is extensive workability, can low-temperature bake or normal temperature self-drying, gather with traditional solvent-borne
Urethane coating compares, and is had clear improvement in terms of environment-friendly, energy-conservation.Dual-component aqueous polyurethane product VOC is low, in construction bar
VOC can be controlled in below 110g/L under part, can substitute traditional solvent-borne polyurethane coating in bus, track traffic, engineering
Machinery, general industry application use.
Embodiment
The embodiment of the present invention is elaborated below.
A kind of double-component aqueous acroleic acid polyurethane coating, including host and curing agent, the host include 80-100 parts
Water-based hydroxyl acrylic acid dispersion, 1-3 parts defoamer, 1-3 parts dispersant, 1-3 parts wetting agent, 30-40 parts titanium dioxide, 1-3 parts
Carbon black, 4-5 parts deionized water, 3-5 parts cosolvent, the explosion-proof infusion of 0.5-1 parts and 0.5-1 part thickeners；The curing agent includes
30-50 parts aqueous polyisocyanate curing agent, 5-10 part PMA and 5-10 parts DMM.
A kind of preparation method of double-component aqueous acroleic acid polyurethane coating, comprises the following steps：
First, take host and curing agent to be mixed with 5: 1 mass ratio, 3~5min is sufficiently stirred using mixer, it is quiet
10min defoamings are put, 2%~2.5% deionized water is added and stirs, 10min activation is stood, double-component aqueous propylene is made
Sour polyurethane coating.
As most of moisture is evaporated, water-based hydroxyl acrylic acid dispersion is contacted with aqueous polyisocyanate curing agent and phase
Mutually close to tightly packed body is formed, the further evaporation and condensation of moisture is now physical film deposition into hexagonal structure.Continue to condense,
Polyureas temporary protection film outside water-based polyisocyanates has been totally disrupted, now water-based hydroxyl acrylic acid dispersion-
OH and the water of residual start in large quantities with aqueous polyisocyanate curing agent-NCO group crosslink reaction formed it is equal
The film of phase, completion of cure.Water-based polyisocyanates particle size dispersion is smaller with water soluble acrylic acid dispersion-OH contact probability
Bigger, more fully, thoroughly, coating film gloss, mist shadow, hardness, the chemicals-resistant of formation are all significantly improved for reaction.Using water-based
Hydroxyl acrylic aqueous dispersion is main film forming matter, is equipped with water-based polyisocyanates, by changing water-based polyisocyanates dispersiveness
Coating film gloss, clarity can be improved.There is good mechanical performance, excellent ornamental, permanent guarantor's light to protect after the coating film forming
Color, there is extensive workability, can low-temperature bake or normal temperature self-drying, compared with traditional solvent-borne polyurethane coating, in ring
Border is friendly, is had clear improvement in terms of energy-conservation.Dual-component aqueous polyurethane product VOC is low, and VOC is can be controlled under execution conditions
Below 110g/L, traditional solvent-borne polyurethane coating can be substituted and applied in bus, track traffic, engineering machinery, general industry
Dress uses.
Preferred embodiments of the present invention are described above, but are not to be construed as limiting the scope of the invention.This hair
Bright to be not only limited to above example, its concrete structure allows to change, and those skilled in the art can make according to the present invention
Various changes and deformation, without departing from the spirit of the present invention, belong to scope defined in appended claims of the present invention.
Claims (2)
1. a kind of double-component aqueous acroleic acid polyurethane coating, it is characterised in that including host and curing agent, the host includes
80-100 part water-based hydroxyls acrylic acid dispersion, 1-3 parts defoamer, 1-3 parts dispersant, 1-3 parts wetting agent, 30-40 part titanium whites
Powder, 1-3 parts carbon black, 4-5 parts deionized water, 3-5 parts cosolvent, the explosion-proof infusion of 0.5-1 parts and 0.5-1 part thickeners；It is described solid
Agent includes 30-50 parts aqueous polyisocyanate curing agent, 5-10 part PMA and 5-10 parts DMM.
A kind of 2. preparation method of double-component aqueous acroleic acid polyurethane coating according to claim 1, it is characterised in that
Comprise the following steps：
First, take host and curing agent to be mixed with 5: 1 mass ratio, 3~5min is sufficiently stirred using mixer, stand
10min is defoamed, and is added 2%~2.5% deionized water and is stirred, and stands 10min activation, double-component aqueous acrylic acid is made
Polyurethane coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710871441.2A CN107523203A (en) | 2017-09-24 | 2017-09-24 | A kind of double-component aqueous acroleic acid polyurethane coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710871441.2A CN107523203A (en) | 2017-09-24 | 2017-09-24 | A kind of double-component aqueous acroleic acid polyurethane coating and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107523203A true CN107523203A (en) | 2017-12-29 |
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| CN201710871441.2A Withdrawn CN107523203A (en) | 2017-09-24 | 2017-09-24 | A kind of double-component aqueous acroleic acid polyurethane coating and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161323A (en) * | 2018-08-23 | 2019-01-08 | 河北晨阳工贸集团有限公司 | A kind of aqueous thick-film type is from poly- paint of dry two-component third and preparation method thereof |
| CN109809706A (en) * | 2019-03-27 | 2019-05-28 | 深圳创维－Rgb电子有限公司 | The preparation method of 3D glass television base, TV and 3D glass television base |
| CN114806364A (en) * | 2022-03-21 | 2022-07-29 | 上海迎轩体育科技有限公司 | WPU (waterborne polyurethane) water-based paint and spraying method thereof |
| CN115851100A (en) * | 2023-03-02 | 2023-03-28 | 山东中胜涂料有限公司 | Water-based two-component acrylic finish paint resistant to high-temperature and high-humidity environment and preparation method thereof |
-
2017
- 2017-09-24 CN CN201710871441.2A patent/CN107523203A/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| 霍春会等: ""新型水性丙烯酸聚氨酯涂料的制备"", 《中国涂料》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161323A (en) * | 2018-08-23 | 2019-01-08 | 河北晨阳工贸集团有限公司 | A kind of aqueous thick-film type is from poly- paint of dry two-component third and preparation method thereof |
| CN109809706A (en) * | 2019-03-27 | 2019-05-28 | 深圳创维－Rgb电子有限公司 | The preparation method of 3D glass television base, TV and 3D glass television base |
| CN114806364A (en) * | 2022-03-21 | 2022-07-29 | 上海迎轩体育科技有限公司 | WPU (waterborne polyurethane) water-based paint and spraying method thereof |
| CN115851100A (en) * | 2023-03-02 | 2023-03-28 | 山东中胜涂料有限公司 | Water-based two-component acrylic finish paint resistant to high-temperature and high-humidity environment and preparation method thereof |
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Application publication date: 20171229 |
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