CN101333409A - High-light anti-yellowing double-component polyurethane white light top coat and method for preparing same - Google Patents
High-light anti-yellowing double-component polyurethane white light top coat and method for preparing same Download PDFInfo
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- CN101333409A CN101333409A CNA2008101426858A CN200810142685A CN101333409A CN 101333409 A CN101333409 A CN 101333409A CN A2008101426858 A CNA2008101426858 A CN A2008101426858A CN 200810142685 A CN200810142685 A CN 200810142685A CN 101333409 A CN101333409 A CN 101333409A
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- yellowing
- component polyurethane
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- finish
- white light
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Abstract
The invention discloses yellowing-resistant polyurethane white glossy top finish with double compositions, and a preparation method thereof. The yellowing-resistant polyurethane white top finish contains(based on weight percentage) 55-62% of film forming matter, 25-30% of coloring pigment, 6-8% of leveling modifying agent, 0.1-0.3 % of fluorin-containing leveling agent, and 3.5-8% of solvent. Applying chloroethylene-vinyl acetate copolymer, the invention effectively increases leveling of the finish film, improves the surface drying speed of the finish film and restrains the re-emission of air bubbles after surface drying of the finish film. The application of fluorocarbon surfactant greatly improves the wetting of the finish to the substrate and the wetting of the resin in the finish system to titanium(IV) oxide tinting pigment, thus effectively ensuring that air vented during wetting before drying can quickly separate from the finish film, and preventing bubbling of the finish film after drying.
Description
Technical field
The present invention relates to technical field of polymer materials, relate in particular to a kind of woodwork coating with the thick white light top coat top coat of the non-foaming high light dual-component polyurethane of anti-xanthochromia the (PU) and preparation method thereof that is coated with.
Background technology
On the market existing woodwork coating with the white light top coat top coat of the dual-component polyurethane of anti-xanthochromia the (PU) usually because of the glossy requirement, when formulating of recipe, consider to prolong surface drying time increase levelling property and improve gloss, in prescription, add on the other hand than the silicone based flow agent of low surface tension and realize that the increase levelling property improves gloss, and the paint film surface drying very easily causes paint film to produce bubble (painting resin in the wetting and paint systems of ground the wetting air of discharging of Titanium white powder tinting pigment) slowly, use the lower silicone based flow agent of surface tension that bubble is had stabilization, therefore, existing woodwork coating bubbles especially easier foaming when thick being coated with usually easily with the white light top coat top coat of the dual-component polyurethane of anti-xanthochromia the (PU) on the market when constructing.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of woodwork coating with the thick white light top coat top coat of the non-foaming high light dual-component polyurethane of anti-xanthochromia the (PU) and preparation method thereof that is coated with.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions.
A kind of high-light anti-yellowing double-component polyurethane white light finish paint, its composition is (%) by weight ratio:
Filmogen 55～62%;
Tinting pigment 25～30%;
Levelling improving agent 6～8%;
Fluorine-containing flow agent 0.1～0.3%;
Solvent 3.5～8%.
Wherein, described filmogen is the Synolac of synthetic fatty acid modification.
Wherein, described tinting pigment is the Titanium white powder.
Wherein, described levelling improving agent is the vinyl chloride-vinyl acetate interpolymer.
Wherein, described fluorine-containing flow agent is a fluorocarbon surfactant.
A kind of preparation method of the finish paint of high-light anti-yellowing double-component polyurethane white light as mentioned above is characterized in that, comprises step:
A: take by weighing raw material according to weight percent;
B: at first add resin in system lacquer container, add the Titanium white powder then while stirring, high speed 1200-1400rpm disperses 5-10 minute to fineness≤20um;
C: in system lacquer container, add the vinyl chloride-vinyl acetate interpolymer while stirring, fluorocarbon surfactant, middling speed 800-1000rpm stirs, and is uniformly dispersed.
Above technical scheme as can be seen, the present invention has following beneficial effect:
1, owing to used the vinyl chloride-vinyl acetate interpolymer among the present invention, effectively promotes the levelling of paint film, improved the surface drying speed of paint film, suppressed the effusion again of air filled cavity behind the paint film surface drying;
2, using fluorocarbon surfactant to improve greatly paints resin in the wetting and paint systems of ground the wettability of Titanium white powder tinting pigment, thereby guaranteed that effectively paint film makes the air of wetting discharge hightail paint film before drying, bubble occurred after can not making drying varniss.
Embodiment
The invention provides a kind of high-light anti-yellowing double-component polyurethane white light finish paint and preparation method thereof.A: take by weighing raw material according to weight percent; B: at first add resin in system lacquer container, add the Titanium white powder then while stirring, high speed dispersion (1200-1400rpm) 5-10 minute is to fineness≤20um; C: in system lacquer container, add the vinyl chloride-vinyl acetate interpolymer while stirring, fluorocarbon surfactant etc. middling speed (800-1000rpm) stirs, and is uniformly dispersed.
A kind of high-light anti-yellowing double-component polyurethane white light finish paint and preparation method thereof, its composition is (%) by weight ratio: filmogen 55～62%; Tinting pigment 25～30%; Levelling improving agent 6～8%; Fluorine-containing flow agent 0.1～0.3%; Solvent 3.5～8%.Wherein, filmogen is the Synolac of synthetic fatty acid modification, and tinting pigment is the Titanium white powder, and the levelling improving agent is the vinyl chloride-vinyl acetate interpolymer, and fluorine-containing flow agent is a fluorocarbon surfactant.
For ease of the present invention is further understood, now describe the present invention in conjunction with specific embodiments:
Embodiment 1:
With weight percent filmogen 60%, tinting pigment 28%, levelling improving agent 6%, fluorine-containing flow agent 0.1%, solvent 5.9% is made product by above-mentioned manufacture method, and the ratio of setting in prescription adds supporting solidifying agent and diluent composition, mix, be sprayed at (the white background pre-treatment: dry fully back is with 600# sand paper sand milling) on dual-component polyurethane (PU) white primer with the special-purpose spray gun of coating application then.
Embodiment 2:
With weight percent filmogen 55%, tinting pigment 30%, levelling improving agent 7%, fluorine-containing flow agent 0.2%, solvent 7.8% is made product by above-mentioned manufacture method, and the ratio of setting in prescription adds supporting solidifying agent and diluent composition, mix, be sprayed at (the white background pre-treatment: dry fully back is with 600# sand paper sand milling) on dual-component polyurethane (PU) white primer with the special-purpose spray gun of coating application then.
Embodiment 3:
With weight percent filmogen 62%, tinting pigment 26%, levelling improving agent 8%, fluorine-containing flow agent 0.1%, solvent 3.9% is made product by above-mentioned manufacture method, and the ratio of setting in prescription adds supporting solidifying agent and diluent composition, mix, be sprayed at (the white background pre-treatment: dry fully back is with 600# sand paper sand milling) on dual-component polyurethane (PU) white primer with the special-purpose spray gun of coating application then.
Embodiment 4:
With weight percent filmogen 58%, tinting pigment 28%, levelling improving agent 8%, fluorine-containing flow agent 0.2%, solvent 5.8% is made product by above-mentioned manufacture method, and the ratio of setting in prescription adds supporting solidifying agent and diluent composition, mix, be sprayed at (the white background pre-treatment: dry fully back is with 600# sand paper sand milling) on dual-component polyurethane (PU) white primer with the special-purpose spray gun of coating application then.
Embodiment 5:
With weight percent filmogen 60%, tinting pigment 25%, levelling improving agent 8%, fluorine-containing flow agent 0.3%, solvent 6.7% is made product by above-mentioned manufacture method, and the ratio of setting in prescription adds supporting solidifying agent and diluent composition, mix, be sprayed at (the white background pre-treatment: dry fully back is with 600# sand paper sand milling) on dual-component polyurethane (PU) white primer with the special-purpose spray gun of coating application then.
Performance test:
Above-mentioned 5 embodiment are finished carry out levelling property after component mixes, surface drying time is measured, and finishes product application (thick being coated with) back test paint film whipability and glossiness (temperature/25 ℃, humidity/75%, time of drying/48 hour).
Surface drying time is undertaken by the second method of chapter 2 among the GB/T1728-1979 (1989); Levelling property is undertaken by second method (spraying method) among the GB/T1750-1979 (1989); Glossiness is undertaken by GB/T9754 (60 ° of minute surfaces) assay method; Whipability is with 20 times of magnifying glasses/range estimation test.
Prescription and the material property of embodiment 1～5 see Table 1:
Table 1
| Embodiment | 01 | 02 | 03 | 04 | 05 |
| Filmogen | 60 | 55 | 62 | 58 | 60 |
| Tinting pigment | 28 | 30 | 26 | 28 | 25 |
| The levelling improving agent | 6 | 7 | 8 | 8 | 8 |
| Fluorine-containing flow agent | 0.1 | 0.2 | 0.1 | 0.2 | 0.3 |
| Solvent | 5.9 | 7.8 | 3.9 | 5.8 | 6.7 |
| Surface drying time | 30min | 30min | 25min | 25min | 25min |
| Levelling property | Better | Good | Good | Fine | Better |
| Glossiness | 97.0 | 97.3 | 98.5 | 99.0 | 98.5 |
| Whipability | Few bubble is arranged | Few bubble is arranged | Still | Still | Still |
By to learning after the data analysis in the above table, when the amount of levelling improving agent increases, the surface drying time of paint film can be accelerated, can effectively suppress the generation of bubble, paint film levelling effect is for optimum when the amount of fluorine-containing flow agent increases to 0.2%, gloss is for the highest, and increasing to 0.3% o'clock paint film levelling effect from 0.2%, the amount of fluorine-containing flow agent reduced on the contrary, therefore, when the amount of levelling improving agent is 8%, the amount of fluorine-containing flow agent is 0.2% o'clock paint film levelling effect, and glossiness and whipability over-all propertieies such as (still) is best.
More than a kind of high-light anti-yellowing double-component polyurethane white light finish paint provided by the present invention and preparation method thereof is described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1, a kind of high-light anti-yellowing double-component polyurethane white light finish paint is characterized in that, its composition is (%) by weight ratio:
Filmogen 55～62%;
Tinting pigment 25～30%;
Levelling improving agent 6～8%;
Fluorine-containing flow agent 0.1～0.3%;
Solvent 3.5～8%.
2, high-light anti-yellowing double-component polyurethane white light finish paint according to claim 1 is characterized in that, described filmogen is the Synolac of synthetic fatty acid modification.
3, high-light anti-yellowing double-component polyurethane white light finish paint as claimed in claim 1 is characterized in that: described tinting pigment is the Titanium white powder.
4, high-light anti-yellowing double-component polyurethane white light finish paint as claimed in claim 1 is characterized in that: described levelling improving agent is the vinyl chloride-vinyl acetate interpolymer.
5, high-light anti-yellowing double-component polyurethane white light finish paint as claimed in claim 1 is characterized in that: described fluorine-containing flow agent is a fluorocarbon surfactant.
6, a kind of preparation method of the finish paint of high-light anti-yellowing double-component polyurethane white light according to claim 1 is characterized in that, comprises step:
A: take by weighing raw material according to weight percent;
B: at first add resin in system lacquer container, add the Titanium white powder then while stirring, high speed 1200-1400rpm disperses 5-10 minute to fineness≤20um;
C: in system lacquer container, add the vinyl chloride-vinyl acetate interpolymer while stirring, fluorocarbon surfactant, middling speed 800-1000rpm stirs, and is uniformly dispersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101426858A CN101333409A (en) | 2008-07-30 | 2008-07-30 | High-light anti-yellowing double-component polyurethane white light top coat and method for preparing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101426858A CN101333409A (en) | 2008-07-30 | 2008-07-30 | High-light anti-yellowing double-component polyurethane white light top coat and method for preparing same |
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| Publication Number | Publication Date |
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| CN101333409A true CN101333409A (en) | 2008-12-31 |
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| CNA2008101426858A Pending CN101333409A (en) | 2008-07-30 | 2008-07-30 | High-light anti-yellowing double-component polyurethane white light top coat and method for preparing same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304309A (en) * | 2011-07-20 | 2012-01-04 | 苏彬煌 | Dressing agent for wooden furniture and preparation method thereof |
| CN105111857A (en) * | 2015-07-20 | 2015-12-02 | 百仪家具有限公司 | High-grade furniture transparent primer |
| CN104497738B (en) * | 2015-01-04 | 2016-08-31 | 河南科技大学 | A kind of bonded solid lubricant coating, preparation method and self-lubricating knuckle bearing, preparation method |
-
2008
- 2008-07-30 CN CNA2008101426858A patent/CN101333409A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304309A (en) * | 2011-07-20 | 2012-01-04 | 苏彬煌 | Dressing agent for wooden furniture and preparation method thereof |
| CN104497738B (en) * | 2015-01-04 | 2016-08-31 | 河南科技大学 | A kind of bonded solid lubricant coating, preparation method and self-lubricating knuckle bearing, preparation method |
| CN105111857A (en) * | 2015-07-20 | 2015-12-02 | 百仪家具有限公司 | High-grade furniture transparent primer |
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Open date: 20081231 |