CN105255340A - High-solid polyurethane paint and preparation method of high-solid polyurethane paint - Google Patents
High-solid polyurethane paint and preparation method of high-solid polyurethane paint Download PDFInfo
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- CN105255340A CN105255340A CN201510718152.XA CN201510718152A CN105255340A CN 105255340 A CN105255340 A CN 105255340A CN 201510718152 A CN201510718152 A CN 201510718152A CN 105255340 A CN105255340 A CN 105255340A
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Abstract
The invention discloses high-solid polyurethane paint, which is prepared from the following ingredients in parts by weight: 20 to 30 parts of low-polymerization-degree hydroxy acrylic resin, 20 to 30 parts of low-viscosity hydroxyl polysiloxane resin, 12 to 14 parts of fluorine modified hydroxyl vinyl resin, 1 to 5 parts of coloring pigments, 1 to 2 parts of anti-rusting pigments, 10 to 15 parts of inorganic fillers, 1 to 3 parts of organic solvents, 0.5 to 3 parts of dispersing agents, 0.5 to 3 parts of thickening agents, 0.5 to 1 part of defoaming agents and 0.2 to 0.6 parts of flatting agents. The invention also correspondingly provides a preparation method of the high-solid polyurethane paint. The paint has higher solid content.
Description
Technical field
The present invention relates to paint field, particularly a kind of high solid 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 all there is the not high defect of solids content in current polyurethane coating.
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 a kind of polyurethane coating of high solid.
A kind of high solid polyurethane coating provided by the invention, composed of the following components by weight: low polymerization degree Hydroxylated acrylic resin 20-30 part, low viscosity hydroxyl polysiloxane resin 20-30 part, fluorine richness hydroxyvinyl resin 12-14 part, tinting pigment 1-5 part, rust-stabilising pigment 1-2 part, mineral filler 10-15 part, organic solvent 1-3 part, dispersion agent 0.5-3 part, thickening material 0.5-3 part, defoamer 0.5-1 part and flow agent 0.2-0.6 part.
Preferably, composed of the following components by weight: low polymerization degree Hydroxylated acrylic resin 25 parts, low viscosity hydroxyl polysiloxane resin 25 parts, fluorine richness hydroxyvinyl resin 13 parts, tinting pigment 3 parts, rust-stabilising pigment 1 part, mineral filler 10 parts, organic solvent 1 part, dispersion agent 1 part, thickening material 1 part, defoamer 0.5 part and flow agent 0.4 part.
Preferably, volume solid part of coating is more than or equal to 80%.
Preferably, the viscosity of described low viscosity hydroxyl polysiloxane resin is less than 1000mPas.
A preparation method for high solid polyurethane coating, comprises the steps:
Step one: add low polymerization degree Hydroxylated acrylic resin, low viscosity hydroxyl polysiloxane resin and fluorine richness hydroxyvinyl resin in reactor, stir 15min under the rotating speed of 400-600r/min;
Step 2: then add tinting pigment, rust-stabilising pigment, mineral filler, organic solvent, dispersion agent, thickening material, defoamer and flow agent, stirs 20min discharging under the rotating speed of 800-1000r/min.
High solid polyurethane coating provided by the invention, solid part can reach more than 80%, and Airless spraying thinner consumption is less than 5%, reduces solvent load more than 70%, greatly reduce the discharge of organic solvent than conventional urethane coating.Other performance is identical with conventional urethane coating.
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: high solid polyurethane coating is composed of the following components by weight: low polymerization degree Hydroxylated acrylic resin 20 parts, low viscosity hydroxyl polysiloxane resin 30 parts, fluorine richness hydroxyvinyl resin 12 parts, tinting pigment 5 parts, rust-stabilising pigment 1 part, mineral filler 15 parts, organic solvent 1 part, dispersion agent 3 parts, thickening material 0.5 part, defoamer 1 part and flow agent 0.2 part.The viscosity of low viscosity hydroxyl polysiloxane resin is less than 1000mPas.
Preparation method is: step one: in reactor, add low polymerization degree Hydroxylated acrylic resin, low viscosity hydroxyl polysiloxane resin and fluorine richness hydroxyvinyl resin, under the rotating speed of 400-600r/min, stir 15min;
Step 2: then add tinting pigment, rust-stabilising pigment, mineral filler, organic solvent, dispersion agent, thickening material, defoamer and flow agent, stirs 20min discharging under the rotating speed of 800-1000r/min.
After testing, solid part of coating is 82%.
Embodiment 2
Get the raw materials ready: high solid polyurethane coating is composed of the following components by weight: low polymerization degree Hydroxylated acrylic resin 30 parts, low viscosity hydroxyl polysiloxane resin 20 parts, fluorine richness hydroxyvinyl resin 14 parts, tinting pigment 1 part, rust-stabilising pigment 2 parts, mineral filler 10 parts, organic solvent 3 parts, dispersion agent 0.5 part, thickening material 3 parts, defoamer 0.5 part and flow agent 0.6 part.The viscosity of low viscosity hydroxyl polysiloxane resin is less than 1000mPas.
Preparation method is: step one: in reactor, add low polymerization degree Hydroxylated acrylic resin, low viscosity hydroxyl polysiloxane resin and fluorine richness hydroxyvinyl resin, under the rotating speed of 400-600r/min, stir 15min;
Step 2: then add tinting pigment, rust-stabilising pigment, mineral filler, organic solvent, dispersion agent, thickening material, defoamer and flow agent, stirs 20min discharging under the rotating speed of 800-1000r/min.
After testing, solid part of coating is 83%.
Embodiment 3
Get the raw materials ready: high solid polyurethane coating is composed of the following components by weight: low polymerization degree Hydroxylated acrylic resin 25 parts, low viscosity hydroxyl polysiloxane resin 25 parts, fluorine richness hydroxyvinyl resin 13 parts, tinting pigment 3 parts, rust-stabilising pigment 1 part, mineral filler 10 parts, organic solvent 1 part, dispersion agent 1 part, thickening material 1 part, defoamer 0.5 part and flow agent 0.4 part.The viscosity of low viscosity hydroxyl polysiloxane resin is less than 1000mPas.
Preparation method is: step one: in reactor, add low polymerization degree Hydroxylated acrylic resin, low viscosity hydroxyl polysiloxane resin and fluorine richness hydroxyvinyl resin, under the rotating speed of 400-600r/min, stir 15min;
Step 2: then add tinting pigment, rust-stabilising pigment, mineral filler, organic solvent, dispersion agent, thickening material, defoamer and flow agent, stirs 20min discharging under the rotating speed of 800-1000r/min.
After testing, solid part of coating is 85%.
Above high solid 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 high solid polyurethane coating, it is characterized in that, composed of the following components by weight: low polymerization degree Hydroxylated acrylic resin 20-30 part, low viscosity hydroxyl polysiloxane resin 20-30 part, fluorine richness hydroxyvinyl resin 12-14 part, tinting pigment 1-5 part, rust-stabilising pigment 1-2 part, mineral filler 10-15 part, organic solvent 1-3 part, dispersion agent 0.5-3 part, thickening material 0.5-3 part, defoamer 0.5-1 part and flow agent 0.2-0.6 part.
2. high solid polyurethane coating according to claim 1, it is characterized in that, composed of the following components by weight: low polymerization degree Hydroxylated acrylic resin 25 parts, low viscosity hydroxyl polysiloxane resin 25 parts, fluorine richness hydroxyvinyl resin 13 parts, tinting pigment 3 parts, rust-stabilising pigment 1 part, mineral filler 10 parts, organic solvent 1 part, dispersion agent 1 part, thickening material 1 part, defoamer 0.5 part and flow agent 0.4 part.
3. high solid polyurethane coating according to claim 1 and 2, is characterized in that, volume solid part of coating is more than or equal to 80%.
4. high solid polyurethane coating according to claim 1, is characterized in that, the viscosity of described low viscosity hydroxyl polysiloxane resin is less than 1000mPas.
5. a preparation method for high solid polyurethane coating described in claim 1, is characterized in that, comprise the steps:
Step one: add low polymerization degree Hydroxylated acrylic resin, low viscosity hydroxyl polysiloxane resin and fluorine richness hydroxyvinyl resin in reactor, stir 15min under the rotating speed of 400-600r/min;
Step 2: then add tinting pigment, rust-stabilising pigment, mineral filler, organic solvent, dispersion agent, thickening material, defoamer and flow agent, stirs 20min discharging under the rotating speed of 800-1000r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510718152.XA CN105255340A (en) | 2015-10-29 | 2015-10-29 | High-solid polyurethane paint and preparation method of high-solid polyurethane paint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510718152.XA CN105255340A (en) | 2015-10-29 | 2015-10-29 | High-solid polyurethane paint and preparation method of high-solid polyurethane paint |
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| CN105255340A true CN105255340A (en) | 2016-01-20 |
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| CN201510718152.XA Pending CN105255340A (en) | 2015-10-29 | 2015-10-29 | High-solid polyurethane paint and preparation method of high-solid polyurethane paint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107556897A (en) * | 2017-10-18 | 2018-01-09 | 江苏建中能源科技有限公司 | A kind of polyurethane coating and its production method |
| CN109609016A (en) * | 2018-12-05 | 2019-04-12 | 福州皇家地坪有限公司 | The superhard weather-proof Lacquer finish material of dumb light |
-
2015
- 2015-10-29 CN CN201510718152.XA patent/CN105255340A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107556897A (en) * | 2017-10-18 | 2018-01-09 | 江苏建中能源科技有限公司 | A kind of polyurethane coating and its production method |
| CN109609016A (en) * | 2018-12-05 | 2019-04-12 | 福州皇家地坪有限公司 | The superhard weather-proof Lacquer finish material of dumb light |
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Application publication date: 20160120 |