CN105255339A - Aqueous polyurethane paint for steel structure and preparation method of aqueous polyurethane paint - Google Patents
Aqueous polyurethane paint for steel structure and preparation method of aqueous polyurethane paint Download PDFInfo
- Publication number
- CN105255339A CN105255339A CN201510717785.9A CN201510717785A CN105255339A CN 105255339 A CN105255339 A CN 105255339A CN 201510717785 A CN201510717785 A CN 201510717785A CN 105255339 A CN105255339 A CN 105255339A
- Authority
- CN
- China
- Prior art keywords
- parts
- water dispersion
- agent
- component
- coating
- 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
Abstract
The invention discloses an aqueous polyurethane paint for a steel structure. The aqueous polyurethane paint is prepared from the following ingredients in parts by weight: 10 to 12 parts of polyurethane resin aggregation water dispersing bodies, 20 to 22 parts of hydroxy fluoro-carbon resin aqueous dispersions, 30 to 34 parts of hexamethylene diisocyanate biuret modified aqueous dispersions, 1 to 3 parts of PH regulators, 1 to 3 parts of coloring pigments, 1 to 2 parts of anti-rusting pigments, 0.5 to 1 part of cosolvents, 3 to 6 parts of inorganic fillers, 2 to 3 parts of dispersing agents, 1 to 2 parts of substrate wetting agents, 0.5 to 0.8 parts of thickening agents, 0.3 to 0.6 parts of defoaming agents and 0.2 to 0.4 parts of flatting agents. The invention also correspondingly provides a preparation method of the aqueous polyurethane paint. The paint has the advantages of low volatility and good anti-corrosion performance.
Description
Technical field
The present invention relates to paint field, particularly a kind of steel construction use polyurethane coating and preparation method thereof.
Background technology
Polyurethane coating is a class coating more common at present, can be divided into bicomponent polyurethane coating and one-can urethane coating.Bicomponent polyurethane coating is generally made up of isocyanate prepolymer (being also low molecule urethane polymer) and hydroxy-containing resin two portions, is commonly referred to curing agent component and host component.The kind of this class coating is a lot, and range of application is also very wide, and the difference according to hydroxy-containing component can be divided into the kinds such as acroleic acid polyurethane, alcohol acid and polyurethane, polyester-polyurethane, polyether-polyurethane, epoxy polyurethane.Generally all there is good mechanical property.It is a class coating variety rising at present.Main application direction has woodwork coating, automobile repairing paint, protective system, floor paint, electronic paint, speciality coating, polyurethane water-proof paint etc.Shortcoming is that working procedure is complicated, and require very high to construction environment, paint film easily produces disadvantage.One-can urethane coating mainly contains the kinds such as ammonia ester oil coating, moisture solidification polyurethane coating, blocked polyurethane paint.Application surface is wide not as two-component coating, and be mainly used in Floor paint, protective system, pre-coil coating etc., its overall performance is comprehensive not as two-component coating.
But current polyurethane coating all has the defect that pest volatility is large, erosion resistance is bad, cannot be used for steel structure surface.
In view of this, special proposition the present invention.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the invention provides the steel construction use polyurethane coating of little, the salt spray resistance of a kind of nuisance volatilization.
A kind of steel construction use polyurethane coating provided by the invention, composed of the following components by weight: water dispersion 10-12 part of urethane resin aggregation, hydroxyl fluorocarbon resin water dispersion 20-22 part, hexamethylene diisocyanate biruet modified water dispersion 30-34 part, pH value adjusting agent 1-3 part, tinting pigment 1-3 part, rust-stabilising pigment 1-2 part, solubility promoter 0.5-1 part, mineral filler 3-6 part, dispersion agent 2-3 part, substrate wetting agents 1-2 part, thickening material 0.5-0.8 part, defoamer 0.3-0.6 part and flow agent 0.2-0.4 part.
Preferably, composed of the following components by weight: the water dispersion 11 parts of urethane resin aggregation, hydroxyl fluorocarbon resin water dispersion 21 parts, hexamethylene diisocyanate biruet modified water dispersion 32 parts, pH value adjusting agent 2 parts, tinting pigment 2 parts, rust-stabilising pigment 1 part, solubility promoter 0.5 part, mineral filler 4 parts, dispersion agent 2 parts, substrate wetting agents 1 part, thickening material 0.6 part, defoamer 0.4 part and flow agent 0.3 part.
Preferably, the volatile organic content of coating can control at below 50g/L.
Preferably, the salt fog resistance of described coating was more than 800 hours.
A preparation method for steel construction use polyurethane coating, comprises the steps:
Step one: the water dispersion and the hydroxyl fluorocarbon resin water dispersion that add urethane resin aggregation in reactor, stirs 15min under the rotating speed of 400-600r/min;
Step 2: then add pH value adjusting agent, tinting pigment, rust-stabilising pigment, solubility promoter, mineral filler, dispersion agent, substrate wetting agents, thickening material, defoamer and flow agent, stirs 20min discharging as component A under the rotating speed of 800-1000r/min;
Step 3: get hexamethylene diisocyanate biruet modified water dispersion as B component;
Component A and B component are coating finished product, both are mixed during use.
Steel construction use polyurethane coating provided by the invention, volatile organic content (VOC) can control at below 50g/L, supports the use with epoxy zinc rich primer, and under its supporting build 80 micron thickness, salt spray resistance was more than 800 hours; Resistance to atmospheric aging more than 800 hours, can protect ferrous materials and possess under normal atmospheric environment more than 10 years, the bridge facilities more than 12 years such as protection concrete.This coating can be supporting with various priming paint such as epoxy zinc rich primer, epoxy primer, alcohol acid primer, phenolic primer, chlorinated rubber priming paint, and obtain the supporting coating of respective different performance.
Embodiment
In order to make those skilled in the art person understand technical scheme of the present invention better, below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
Get the raw materials ready: steel construction use polyurethane coating is composed of the following components by weight: the water dispersion 10 parts of urethane resin aggregation, hydroxyl fluorocarbon resin water dispersion 22 parts, hexamethylene diisocyanate biruet modified water dispersion 30 parts, pH value adjusting agent 3 parts, tinting pigment 1 part, rust-stabilising pigment 2 parts, solubility promoter 0.5 part, mineral filler 6 parts, dispersion agent 2 parts, substrate wetting agents 2 parts, thickening material 0.5 part, defoamer 0.6 part and flow agent 0.2 part.
Preparation method is: step one: in reactor, add urethane resin aggregation water dispersion and hydroxyl fluorocarbon resin water dispersion, under the rotating speed of 400-600r/min, stir 15min;
Step 2: then add pH value adjusting agent, tinting pigment, rust-stabilising pigment, solubility promoter, mineral filler, dispersion agent, substrate wetting agents, thickening material, defoamer and flow agent, stirs 20min discharging as component A under the rotating speed of 800-1000r/min;
Step 3: get hexamethylene diisocyanate biruet modified water dispersion as B component;
Component A and B component are coating finished product, both are mixed during use.
After testing, the volatile organic content (VOC) of coating can control at below 50g/L, supports the use with epoxy zinc rich primer, and under its supporting build 80 micron thickness, salt spray resistance was more than 800 hours; Resistance to atmospheric aging more than 800 hours.
Embodiment 2
Get the raw materials ready: steel construction use polyurethane coating is composed of the following components by weight: the water dispersion 12 parts of urethane resin aggregation, hydroxyl fluorocarbon resin water dispersion 20 parts, hexamethylene diisocyanate biruet modified water dispersion 34 parts, pH value adjusting agent 1 part, tinting pigment 3 parts, rust-stabilising pigment 1 part, solubility promoter 1 part, mineral filler 3 parts, dispersion agent 3 parts, substrate wetting agents 1 part, thickening material 0.8 part, defoamer 0.3 part and flow agent 0.4 part.
Preparation method is: step one: in reactor, add urethane resin aggregation water dispersion and hydroxyl fluorocarbon resin water dispersion, under the rotating speed of 400-600r/min, stir 15min;
Step 2: then add pH value adjusting agent, tinting pigment, rust-stabilising pigment, solubility promoter, mineral filler, dispersion agent, substrate wetting agents, thickening material, defoamer and flow agent, stirs 20min discharging as component A under the rotating speed of 800-1000r/min;
Step 3: get hexamethylene diisocyanate biruet modified water dispersion as B component;
Component A and B component are coating finished product, both are mixed during use.
After testing, the volatile organic content (VOC) of coating can control at below 50g/L, supports the use with epoxy zinc rich primer, and under its supporting build 80 micron thickness, salt spray resistance was more than 800 hours; Resistance to atmospheric aging more than 800 hours.
Embodiment 3
Get the raw materials ready: steel construction use polyurethane coating is composed of the following components by weight: the water dispersion 11 parts of urethane resin aggregation, hydroxyl fluorocarbon resin water dispersion 21 parts, hexamethylene diisocyanate biruet modified water dispersion 32 parts, pH value adjusting agent 2 parts, tinting pigment 2 parts, rust-stabilising pigment 1 part, solubility promoter 0.5 part, mineral filler 4 parts, dispersion agent 2 parts, substrate wetting agents 1 part, thickening material 0.6 part, defoamer 0.4 part and flow agent 0.3 part.
Preparation method is: step one: in reactor, add urethane resin aggregation water dispersion and hydroxyl fluorocarbon resin water dispersion, under the rotating speed of 400-600r/min, stir 15min;
Step 2: then add pH value adjusting agent, tinting pigment, rust-stabilising pigment, solubility promoter, mineral filler, dispersion agent, substrate wetting agents, thickening material, defoamer and flow agent, stirs 20min discharging as component A under the rotating speed of 800-1000r/min;
Step 3: get hexamethylene diisocyanate biruet modified water dispersion as B component;
Component A and B component are coating finished product, both are mixed during use.
After testing, the volatile organic content (VOC) of coating can control at below 50g/L, supports the use with epoxy zinc rich primer, and under its supporting build 80 micron thickness, salt spray resistance was more than 800 hours; Resistance to atmospheric aging more than 800 hours.
Above steel construction use polyurethane coating provided by the present invention and preparation method thereof is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands core concept of the present invention for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention.These improve and modify and also should fall in the protection domain of the claims in the present invention.
Claims (5)
1. a steel construction use polyurethane coating, it is characterized in that, composed of the following components by weight: water dispersion 10-12 part of urethane resin aggregation, hydroxyl fluorocarbon resin water dispersion 20-22 part, hexamethylene diisocyanate biruet modified water dispersion 30-34 part, pH value adjusting agent 1-3 part, tinting pigment 1-3 part, rust-stabilising pigment 1-2 part, solubility promoter 0.5-1 part, mineral filler 3-6 part, dispersion agent 2-3 part, substrate wetting agents 1-2 part, thickening material 0.5-0.8 part, defoamer 0.3-0.6 part and flow agent 0.2-0.4 part.
2. steel construction use polyurethane coating according to claim 1, it is characterized in that, composed of the following components by weight: the water dispersion 11 parts of urethane resin aggregation, hydroxyl fluorocarbon resin water dispersion 21 parts, hexamethylene diisocyanate biruet modified water dispersion 32 parts, pH value adjusting agent 2 parts, tinting pigment 2 parts, rust-stabilising pigment 1 part, solubility promoter 0.5 part, mineral filler 4 parts, dispersion agent 2 parts, substrate wetting agents 1 part, thickening material 0.6 part, defoamer 0.4 part and flow agent 0.3 part.
3. steel construction use polyurethane coating according to claim 1 and 2, is characterized in that, the volatile organic content of coating can control at below 50g/L.
4. steel construction use polyurethane coating according to claim 1, is characterized in that, the salt fog resistance of described coating was more than 800 hours.
5. a preparation method for steel construction use polyurethane coating described in claim 1, is characterized in that, comprise the steps:
Step one: the water dispersion and the hydroxyl fluorocarbon resin water dispersion that add urethane resin aggregation in reactor, stirs 15min under the rotating speed of 400-600r/min;
Step 2: then add pH value adjusting agent, tinting pigment, rust-stabilising pigment, solubility promoter, mineral filler, dispersion agent, substrate wetting agents, thickening material, defoamer and flow agent, stirs 20min discharging as component A under the rotating speed of 800-1000r/min;
Step 3: get hexamethylene diisocyanate biruet modified water dispersion as B component;
Component A and B component are coating finished product, both are mixed during use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717785.9A CN105255339A (en) | 2015-10-29 | 2015-10-29 | Aqueous polyurethane paint for steel structure and preparation method of aqueous polyurethane paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717785.9A CN105255339A (en) | 2015-10-29 | 2015-10-29 | Aqueous polyurethane paint for steel structure and preparation method of aqueous polyurethane paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105255339A true CN105255339A (en) | 2016-01-20 |
Family
ID=55095289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510717785.9A Pending CN105255339A (en) | 2015-10-29 | 2015-10-29 | Aqueous polyurethane paint for steel structure and preparation method of aqueous polyurethane paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105255339A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108841216A (en) * | 2018-06-01 | 2018-11-20 | 厦门派探特环保科技有限公司 | A kind of environmental protection graphene high durable automobile water paint and preparation method thereof |
| CN117363112A (en) * | 2023-11-02 | 2024-01-09 | 青岛中氟氟碳材料有限公司 | Preparation method and application of graphene fluorocarbon coating |
-
2015
- 2015-10-29 CN CN201510717785.9A patent/CN105255339A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108841216A (en) * | 2018-06-01 | 2018-11-20 | 厦门派探特环保科技有限公司 | A kind of environmental protection graphene high durable automobile water paint and preparation method thereof |
| CN117363112A (en) * | 2023-11-02 | 2024-01-09 | 青岛中氟氟碳材料有限公司 | Preparation method and application of graphene fluorocarbon coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103080174B (en) | Erosion-resistant coating compositions | |
| CN101712842B (en) | Adhesion and doodling prevention coating | |
| CN104387939A (en) | Strong-acid-alkali-resistant polyurethane finishing coat for locomotives and preparation method of finishing coat | |
| CN111171696A (en) | Water-based double-component matte white finish and preparation method thereof | |
| CN105602432A (en) | Water-based nano flame-retardant polyurethane floating coat paint and preparation method thereof | |
| CN113045972A (en) | Polyurea coating | |
| CN108003748A (en) | A kind of engineering machinery epoxy primer and preparation method thereof | |
| CN103725174A (en) | Water-based paint for wagon and preparation method thereof | |
| CN109722157A (en) | A kind of safety-type aqueous double-component bloom finishing coat and preparation method thereof | |
| CN105017906A (en) | Water-in-water multi-color water paint and preparation method thereof | |
| DE102015223197A1 (en) | Coating system for concrete surfaces | |
| CN105255339A (en) | Aqueous polyurethane paint for steel structure and preparation method of aqueous polyurethane paint | |
| CN112322170B (en) | Two-component waterborne polyurethane coating and preparation method and application thereof | |
| CN103073985A (en) | Backing syncretic single-coating paint and preparation method and construction method of backing syncretic single-coating paint | |
| CN105238171A (en) | Formula of water-based heavy-duty primer and finishing coat integrated coating and preparation method for coating | |
| CN108912960A (en) | A kind of selfreparing anticorrosive paint | |
| US3898190A (en) | Antifouling marine coating composition | |
| CN102051105A (en) | Solvent-free coumarone modified epoxy heavy-duty anticorrosive coating | |
| CN102167798B (en) | Waterborne polyurethane curing agent and waterborne polyurethane dispersoid | |
| CN109836967B (en) | Water-based bi-component epoxy anti-corrosion primer for water-based paint and solvent-based paint | |
| CN108148494B (en) | Double-component water-based acrylic polyurethane self-repairing high-gloss varnish for urban rails and motor train bodies and preparation method thereof | |
| CN106349831A (en) | Water-based-high-hydroxyl-fluorocarbon anti-corrosion coating and preparation method thereof | |
| CN105255340A (en) | High-solid polyurethane paint and preparation method of high-solid polyurethane paint | |
| CN105219211A (en) | A kind of high-performance scumbling type aqueous epoxy floor coating and preparation method thereof | |
| KR102103223B1 (en) | Steel structure anticorrosive paint and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160120 |