CN109749610A - A kind of preparation method of the low VOCs polyurethane protective coating of high-performance - Google Patents
A kind of preparation method of the low VOCs polyurethane protective coating of high-performance Download PDFInfo
- Publication number
- CN109749610A CN109749610A CN201811623135.8A CN201811623135A CN109749610A CN 109749610 A CN109749610 A CN 109749610A CN 201811623135 A CN201811623135 A CN 201811623135A CN 109749610 A CN109749610 A CN 109749610A
- Authority
- CN
- China
- Prior art keywords
- protective coating
- resin
- polyurethane protective
- performance
- preparation
- 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
Landscapes
- Paints Or Removers (AREA)
Abstract
The application provides a kind of preparation method of the low VOCs polyurethane protective coating of high-performance, and the weight for preparing the raw material of the protective coating is as follows: 50-60 parts of resin, 15 parts of water, 2 parts of dispersing agent, 20 parts of pigment, 0.3 part of levelling agent, 0.2 part of defoaming agent；The described method includes: optimizing by the molecular weight and molecualr weight distribution to the resin, the molecular weight of the resin is reduced, the viscosity of the resin is made to reach preset value；By the resin and the water, dispersant stirring predetermined time after the optimization, the first mixture is obtained；The pigment is added in first mixture, is mixed into uniform sizing material；The uniform sizing material is ground to uniform particle sizes' distribution and scheduled fineness, obtains the polyurethane protective coating.Using embodiment each in the application, the lower polyurethane protective coating of available good mechanical performance, VOCs content.
Description
Technical field
This application involves chemical technology field, in particular to the preparation side of the low VOCs polyurethane protective coating of a kind of high-performance
Method.
Background technique
Polyurethane protective coating has been widely used for lathe, lathe, punching machine, hardware as a kind of protected decoration coating
The protected decoration of part, engineering machinery, steel construction, harbour storage tank storage tank, vehicular traffic etc..
But in the prior art, the physical property of polyurethane coating is poor, and contains more VOCs ingredient, exists
Certain safety pollution and the injury to human body.
At least there are the following problems in the prior art: the physical property of polyurethane coating is poor, and containing more
VOCs ingredient, the injury there are certain safety pollution and to human body.
Summary of the invention
The purpose of the embodiment of the present application is to provide a kind of preparation method of the low VOCs polyurethane protective coating of high-performance, with
To good mechanical performance, the lower polyurethane protective coating of VOCs content.
The preparation method that the embodiment of the present application provides a kind of low VOCs polyurethane protective coating of high-performance is achieved in that
A kind of preparation method of the low VOCs polyurethane protective coating of high-performance, prepares the weight of the raw material of the protective coating
Part proportion is as follows: 50-60 parts of resin, 15 parts of water, 2 parts of dispersing agent, 20 parts of pigment, 0.3 part of levelling agent, 0.2 part of defoaming agent；
The described method includes:
It is optimized by the molecular weight and molecualr weight distribution to the resin, reduces the molecular weight of the resin, make institute
The viscosity for stating resin reaches preset value；
By the resin and the water, dispersant stirring predetermined time after the optimization, the first mixture is obtained；
The pigment is added in first mixture, is mixed into uniform sizing material；
The uniform sizing material is ground to uniform particle sizes' distribution and scheduled fineness, obtains the polyurethane protective coating.
In preferred embodiment, the method also includes:
The polyurethane protective coating is made into detection colour table according to industry standard, to the property of the polyurethane protective coating
It can be carried out detection.
In preferred embodiment, mode that the molecular weight and molecualr weight distribution to the resin optimizes, comprising: choosing
Select the matrix resin compatibility of the excellent monomer of patience Yu the resin.
In preferred embodiment, the mode that the uniform sizing material is ground to uniform particle sizes' distribution and scheduled fineness,
The uniform sizing material is ground including the use of accurate sand mill, obtains predetermined fineness, the uniform polyurethane protective coating of particle diameter distribution.
In preferred embodiment, the dispersing agent is BYK-2012 type dispersing agent.
In preferred embodiment, the levelling agent is BYK-346 type levelling agent.
In preferred embodiment, the defoaming agent is BYK type defoaming agent.
Utilize a kind of preparation method of the low VOCs polyurethane protective coating of high-performance provided by the embodiments of the present application, Ke Yitong
The molecular weight and molecular weight distribution of optimization conventional polymer resin are crossed, to make resin with relatively small molecular weight, relatively
Lower viscosity prepares the polyurethane protective coating finished product of high solid, low volatile organic compound content, to make coating
VOCs reduce.The molecular weight distribution of Relatively centralized also assigns the appearance of coating more preferably physical and chemical performance and high-decoration.
Using herein described method, obtained polyurethane protective coating has low VOCs, is less than 420g/L national standard limit, meets
GB/T23985-2009 national standard, and it is smaller to the pollution of environment, have relatively lower nocuity to human body, be opposite
Lower fire risk, separately with the decorative appearance of excellent protection ability and high-quality.
Specific embodiment
The embodiment of the present application provides a kind of preparation method of the low VOCs polyurethane protective coating of high-performance.
In order to make those skilled in the art better understand the technical solutions in the application, will implement below to the application
Technical solution in example is clearly and completely described, it is clear that described embodiment is only that the application a part is implemented
Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, shall fall within the protection scope of the present application under the premise of labour.
It is made in a kind of a kind of embodiment of the preparation method of the low VOCs polyurethane protective coating of high-performance provided by the present application
The weight of the raw material of the standby protective coating is as follows: 50-60 parts of resin, 15 parts of water, 2 parts of dispersing agent, 20 parts of pigment, stream
0.3 part of flat agent, 0.2 part of defoaming agent；
The method may include:
It is optimized by the molecular weight and molecualr weight distribution to the resin, reduces the molecular weight of the resin, make institute
The viscosity for stating resin reaches preset value；
By the resin and the water, dispersant stirring predetermined time after the optimization, the first mixture is obtained；
The pigment is added in first mixture, is mixed into uniform sizing material；
The uniform sizing material is ground to uniform particle sizes' distribution and scheduled fineness, obtains the polyurethane protective coating.
In this example, the method can also include:
The polyurethane protective coating is made into detection colour table according to industry standard, to the property of the polyurethane protective coating
It can be carried out detection.
In this example, the mode that the molecular weight and molecualr weight distribution to the resin optimizes may include: selection
The matrix resin compatibility of the excellent monomer of patience and the resin.
In this example, the mode that the uniform sizing material is ground to uniform particle sizes' distribution and scheduled fineness, including benefit
The uniform sizing material is ground with accurate sand mill, obtains predetermined fineness, the uniform polyurethane protective coating of particle diameter distribution.
In this example, the dispersing agent is BYK-2012 type dispersing agent.
In this example, the levelling agent is BYK-346 type levelling agent.
In this example, the defoaming agent is BYK type defoaming agent.
Utilize a kind of embodiment party of the preparation method of the low VOCs polyurethane protective coating of high-performance provided by the above embodiment
Formula, can be by optimizing the molecular weight and molecular weight distribution of conventional polymer resin, so that resin be made to have relatively small point
Son amount, relatively low viscosity, prepare the polyurethane protective coating finished product of high solid, low volatile organic compound content,
To make the VOCs of coating reduce.The molecular weight distribution of Relatively centralized also assigns coating more preferably physical and chemical performance and high decoration
The appearance of property.Using herein described method, obtained polyurethane protective coating has low VOCs, is less than 420g/L national standard and limits
Value, meet GB/T23985-2009 national standard, and it is smaller to the pollution of environment, have relatively lower injury to human body
Property, relatively low fire risk, separately with excellent protection ability and high-quality decorative appearance.
Specifically, the molecular weight distribution of resin is controlled to the optimization processing of formula, the monomer and main body for selecting patience excellent
Resin compatibility, so that base-material has splendid viscosity dilution property, chemical resistance, corrosion resistance.The addition of functional additive, into one
Step promotes the high-quality performance of coating.Optimal control to macromolecule resin molecular weight and molecular weight distribution can make to prepare
Polyurethane protective coating reach splendid viscosity dilution property, be aided with the partial size grinding control of accurate sand mill, select Gao Pin
The accurate sand mill of matter abrasive media is reached excellent particle diameter distribution to paint slurry partial size and is controlled.Reach solidify coating high polymer
To optimal physical mechanical property.
Each embodiment in this specification is described in a progressive manner, the same or similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and
Variation is without departing from spirit herein, it is desirable to which the attached claims include these deformations and change without departing from the application's
Spirit.
Claims (7)
1. a kind of preparation method of the low VOCs polyurethane protective coating of high-performance, which is characterized in that prepare the protective coating
The weight of raw material is as follows: 50-60 parts of resin, 15 parts of water, 2 parts of dispersing agent, 20 parts of pigment, 0.3 part of levelling agent, defoaming agent
0.2 part；
The described method includes:
It is optimized by the molecular weight and molecualr weight distribution to the resin, reduces the molecular weight of the resin, make the tree
The viscosity of rouge reaches preset value；
By the resin and the water, dispersant stirring predetermined time after the optimization, the first mixture is obtained；
The pigment is added in first mixture, is mixed into uniform sizing material；
The uniform sizing material is ground to uniform particle sizes' distribution and scheduled fineness, obtains the polyurethane protective coating.
2. the preparation method of the low VOCs polyurethane protective coating of a kind of high-performance as described in claim 1, which is characterized in that institute
State method further include:
The polyurethane protective coating is made into detection colour table according to industry standard, to the performance of the polyurethane protective coating into
Row detection.
3. the preparation method of the low VOCs polyurethane protective coating of a kind of high-performance as described in claim 1, which is characterized in that institute
State the mode optimized to the molecular weight and molecualr weight distribution of the resin, comprising: the excellent monomer of selection patience with it is described
The matrix resin compatibility of resin.
4. the preparation method of the low VOCs polyurethane protective coating of a kind of high-performance as described in claim 1, which is characterized in that institute
The mode that the uniform sizing material is ground to uniform particle sizes' distribution and scheduled fineness is stated, grinds institute including the use of accurate sand mill
Uniform sizing material is stated, predetermined fineness, the uniform polyurethane protective coating of particle diameter distribution are obtained.
5. the preparation method of the low VOCs polyurethane protective coating of a kind of high-performance as described in claim 1, which is characterized in that institute
Stating dispersing agent is BYK-2012 type dispersing agent.
6. the preparation method of the low VOCs polyurethane protective coating of a kind of high-performance as described in claim 1, which is characterized in that institute
Stating levelling agent is BYK-346 type levelling agent.
7. the preparation method of the low VOCs polyurethane protective coating of a kind of high-performance as described in claim 1, which is characterized in that institute
Stating defoaming agent is BYK type defoaming agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623135.8A CN109749610A (en) | 2018-12-28 | 2018-12-28 | A kind of preparation method of the low VOCs polyurethane protective coating of high-performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623135.8A CN109749610A (en) | 2018-12-28 | 2018-12-28 | A kind of preparation method of the low VOCs polyurethane protective coating of high-performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109749610A true CN109749610A (en) | 2019-05-14 |
Family
ID=66404281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811623135.8A Pending CN109749610A (en) | 2018-12-28 | 2018-12-28 | A kind of preparation method of the low VOCs polyurethane protective coating of high-performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109749610A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101374920A (en) * | 2006-01-23 | 2009-02-25 | 关西涂料株式会社 | Water-based intermediate coating composition and method for the formation of multilayer coating film |
| CN101802040A (en) * | 2007-07-20 | 2010-08-11 | 因维斯塔技术有限公司 | Aqueous polyurethaneurea compositions including dispersions and film |
| CN102405243A (en) * | 2009-04-22 | 2012-04-04 | 三洋化成工业株式会社 | Aqueous polyurethane resin dispersion |
| CN104231898A (en) * | 2014-09-11 | 2014-12-24 | 常州大学 | Star-shaped acrylate resin high-solid coating and preparation method thereof |
| CN105820742A (en) * | 2015-12-31 | 2016-08-03 | 广东科德环保科技股份有限公司 | High-solid-content low-viscosity cathode electrophoresis paint, and preparation method and application method thereof |
| CN108676480A (en) * | 2018-04-02 | 2018-10-19 | 华南理工大学 | A kind of double-component aqueous acroleic acid polyurethane coating and preparation method thereof |
| KR20190110742A (en) * | 2018-03-21 | 2019-10-01 | (주)노루페인트 | High viscosity primier-surfacer paint composition for reparing automobiles and method of repairing automobile using the same |
-
2018
- 2018-12-28 CN CN201811623135.8A patent/CN109749610A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101374920A (en) * | 2006-01-23 | 2009-02-25 | 关西涂料株式会社 | Water-based intermediate coating composition and method for the formation of multilayer coating film |
| CN101802040A (en) * | 2007-07-20 | 2010-08-11 | 因维斯塔技术有限公司 | Aqueous polyurethaneurea compositions including dispersions and film |
| CN102405243A (en) * | 2009-04-22 | 2012-04-04 | 三洋化成工业株式会社 | Aqueous polyurethane resin dispersion |
| CN104231898A (en) * | 2014-09-11 | 2014-12-24 | 常州大学 | Star-shaped acrylate resin high-solid coating and preparation method thereof |
| CN105820742A (en) * | 2015-12-31 | 2016-08-03 | 广东科德环保科技股份有限公司 | High-solid-content low-viscosity cathode electrophoresis paint, and preparation method and application method thereof |
| KR20190110742A (en) * | 2018-03-21 | 2019-10-01 | (주)노루페인트 | High viscosity primier-surfacer paint composition for reparing automobiles and method of repairing automobile using the same |
| CN108676480A (en) * | 2018-04-02 | 2018-10-19 | 华南理工大学 | A kind of double-component aqueous acroleic acid polyurethane coating and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 邓锡柱等: "高固体份水稀释型聚氨酯丙烯酸酯黏度的影响因素", 《化工学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102002292B (en) | Bi-component water woodware matte whitening paint | |
| CN102127343B (en) | High-fineness aqueous color paste and preparation method thereof | |
| CN101838497B (en) | Waterborne wood paint | |
| CN101215438B (en) | Anti-soiling aging-resisting stainless steel paint and preparation method thereof | |
| CN105820737B (en) | A kind of automobile using aqueous double-component floating coating of excellent performance and preparation method thereof | |
| CN104962173B (en) | A kind of epoxide terrace sealing wax and preparation method thereof | |
| CN109233611A (en) | A kind of aqueous polyurethane dull finishing coat and preparation method thereof | |
| CN108456475B (en) | High-adhesion water-based waterproof primer and preparation method and application thereof | |
| CN105176220B (en) | Synthetic emulsion diatom interiro wall latex paint and preparation method thereof | |
| CN105153830A (en) | Nanometer-anion functional interior-wall latex paint and preparing method thereof | |
| CN101225279A (en) | Plane aluminium powder coating | |
| CN103304185A (en) | Real mineral varnish | |
| CN104087132B (en) | Wear-resisting lacquer as woodenware finish | |
| CN107641445A (en) | A kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene and preparation method thereof | |
| CN102604519B (en) | Polyurethane (PU) crackle paint, and preparation method of corresponding primary paint | |
| CN108529915A (en) | Cement | |
| CN109651938A (en) | A kind of high-environmental powdery paints | |
| CN106675257B (en) | Safe environment-friendly semi-matte varnish for automotive interior parts and preparation method thereof | |
| CN105176230A (en) | Green anticorrosive paint of tap water conveying buried pipeline and preparation method thereof | |
| CN109749610A (en) | A kind of preparation method of the low VOCs polyurethane protective coating of high-performance | |
| EP2942376B1 (en) | Dispersion paint and method of producing | |
| CN102746748A (en) | Aqueous edge-sealing paint and preparation method thereof | |
| CN104726029A (en) | Polishing solution and preparation method thereof | |
| CN104031478A (en) | Organic pigment water-based color paste used for synthetic leather coloring and preparation method thereof | |
| CN104592818A (en) | High-temperature-resistant high-pressure-resistant water-based wood paint and preparation method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190514 |