CN103333575A - Water-based automobile metallic flashing paint and preparation technology thereof - Google Patents
Water-based automobile metallic flashing paint and preparation technology thereof Download PDFInfo
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- CN103333575A CN103333575A CN201310320812XA CN201310320812A CN103333575A CN 103333575 A CN103333575 A CN 103333575A CN 201310320812X A CN201310320812X A CN 201310320812XA CN 201310320812 A CN201310320812 A CN 201310320812A CN 103333575 A CN103333575 A CN 103333575A
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Abstract
The invention discloses a water-based automobile metallic flashing paint which comprises the following components: 3.6-5.2% of water-based dispersoid, 45-52% of water-based resins, 7-10% of water-based aluminum silver pastes, 1-2% of wetting dispersants, 0.1-0.3% of substrate wetting agents, 0.2-0.5% of pH modifiers, 8-10% of auxiliaries, 0.2-0.5% of thickening agents, 15-25% of cross-linking agents and the balance of water. A preparation technology comprises the following steps: adding the auxiliaries and the wetting dispersants and uniformly stirring; adding aluminum silver powder, uniformly stirring and then adding the dispersoid; stirring while adding the pH modifiers till pH is 7.5-8.5, thereby obtaining the aluminum silver pastes; adding the water-based resins into distilled water; while stirring at a high speed, adding the substrate wetting agents and the thickening agents; while stirring at a low speed, adding the configured aluminum silver pastes and cross-linking agents; and discharging after uniformly stirring. The water-based automobile metallic flashing paint has high safety and environmental protection property; the organic solvent is replaced by water, so that the discharging of organic wastes is improved; the wear-resisting property is excellent; the water-based automobile metallic flashing paint has high hardness, toughness and chemical resistance and is non-toxic and harmless; and the preparation technology is simple in operation and the labor cost is lowered.
Description
Technical field
The present invention relates to a kind of automobile polychromatic finish and preparation thereof, relate in particular to a kind of aqueous automobile metal flash paint and preparation technology thereof.
Background technology
Flash metal luster priming paint and finish paint application are to discharge the maximum operation of volatile organic matter (VOC) in the car paint.Be the production of control painting dressing automobiles to the pollution of environment, in be coated with, finish paint realized Water-borne modification, and developed on the electrocoating paint wet film technology that is coated with in " wet bump wet " spraying water-based.But, in recent years, existing aqueous automobile metal flash paint exists the over-all properties instability, problems such as the aluminium powder location of aqueous automobile metallic paint is bad, simultaneously general water-borne coatings often will be inferior to the solvent-borne type automobile finish on over-all properties, and complicated process of preparation, preparation starting material environment is unfriendly.
Because the defective that above-mentioned existing aqueous automobile metal flash paint and preparation technology thereof exist, the inventor is based on being engaged in practical experience and the expertise that this type of product design manufacturing is enriched for many years, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of novel aqueous automobile metal sparkling lacquer and preparation technology thereof, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcome the defective that existing aqueous automobile metal flash paint and preparation technology thereof exist, and provide a kind of novel aqueous automobile metal sparkling to coat with lacquer and preparation technology, technical problem to be solved is to make existing aqueous automobile metal flash paint aluminium powder positioning stablity, preparation technology is simple, environmental-protecting performance is good, thereby is suitable for practicality more, and has the utility value on the industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of aqueous automobile metal flash paint according to the present invention's proposition, described metal flash paint is made up of following component, aqueous dispersion 3.6～5.2%, water-base resin 45～52%, water aluminum-silver slurry 7～10%, auxiliary agent 9.5～13.3%, linking agent 15～25%, all the other are water.
Aforesaid aqueous automobile metal flash paint, described auxiliary agent comprises following component, wetting dispersing agent 1～2%, ground wetting agent 0.1～0.3%, PH conditioning agent 0.2～0.5%, auxiliary agent 8～10% and thickening material 0.2～0.5%.
Aforesaid aqueous automobile metal flash paint, described aqueous dispersion are the water soluble acrylic acid polyurethane dispersions, and described water-base resin is the modified polybutadiene resin.
Aforesaid aqueous automobile metal flash paint, described wetting dispersing agent are dimethyl sulfoxide (DMSO), and described ground wetting agent is soybean lecithin, and described PH conditioning agent is dimethylethanolamine, and described solubility promoter is the propylene glycol butyl ether, and described thickening material is Natvosol.
Aforesaid aqueous automobile metal flash paint, described linking agent are the water-compatible amino resin linking agent.
Aforesaid aqueous automobile metal flash paint, described water are distilled water.
Aforesaid aqueous automobile metal flash paint preparation technology, described preparation technology comprises the steps, the preparation aluminium-silver slurry, add solubility promoter, wetting dispersing agent successively and stir, then add the aluminium-silver slurry powder, add dispersion after stirring, continuing to stir and add the PH conditioning agent is 7.5～8.5 up to pH value, obtains aluminium-silver slurry; Water-base resin is added in the distilled water, add ground wetting agent and thickening material under the high-speed stirring, stirring at low speed adds the aluminium-silver slurry and the linking agent that configure, and the back discharging that stirs obtains target product.
Aforesaid aqueous automobile metal flash paint preparation technology, described pH value is preferably 8.
By technique scheme, aqueous automobile metal flash paint of the present invention and preparation technology thereof have following advantage at least:
Metal flash paint of the present invention has higher security and the feature of environmental protection, uses water to replace organic solvent, has improved the discharging of painting dressing automobiles streamline VOC greatly, wear resisting property is better than solvent-borne type, have goodish hardness, toughness, the reflection degree of depth and chemical-resistant simultaneously, nontoxic, harmless; Preparation technology is simple to operate, and cost of labor reduces.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technique means of the present invention, and can be implemented according to the content of specification sheets, below with preferred embodiment of the present invention describe in detail as after.
Embodiment
Reach technique means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, to aqueous automobile metal flash paint and its embodiment of preparation technology, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
The present invention adopts water-compatible amino resin as linking agent, with the hydroxyl generation crosslinking reaction in the water-base resin, makes film curing.The consumption of linking agent is determining the film curing degree, is just determining the final performance of paint film.Consumption very little, crosslinking degree is low, paint film is soft, difference of hardness, every patience is all poor; Consumption is too high, and crosslinking degree is very high, and hardness of paint film is fine, patience, but paint film is crisp, and snappiness is poor, and sticking power is undesirable.Must select a best dosage of crosslinking agent, make paint film have best balanced performance.The test result of different dosage of crosslinking agent sees Table 1:
Table 1
| Dosage of crosslinking agent/% | ＜10 | 10～15 | 15～20 | 20～25 | 25～30 | ＞30 |
| Hardness | Soft | Softer | Harder | Firmly | Very hard | Stone |
| Snappiness | Very good | Fine | Good | Better | Poor slightly | Difference |
| Sticking power | Very good | Fine | Fine | Good | Better | Poor slightly |
| Patience | Relatively poor | Better | Better | Good | Good | Fine |
Embodiment 1
Getting the dimethyl sulfoxide (DMSO) of 8% propylene glycol butyl ether and 1% mixes, and stirred 20 minutes, up to stirring, add 20g aluminium-silver slurry powder, back adding 4% water soluble acrylic acid polyurethane dispersions continues to stir, stir the back and regulate pH value till 8 with 0.4% dimethylethanolamine, add 48% modified polybutadiene resin in 10% distilled water, add 0.1% soybean lecithin and 0.5% Natvosol under the high-speed stirring, stir after 30 minutes, stirring at low speed adds 8% aluminium-silver slurry and the 20% water-compatible amino resin linking agent configure, stirs all and discharging afterwards, obtains final product.
Embodiment 2
Getting the dimethyl sulfoxide (DMSO) of 9% propylene glycol butyl ether and 1% mixes, and stirred 20 minutes, up to stirring, add 25g aluminium-silver slurry powder, back adding 3.5% water soluble acrylic acid polyurethane dispersions continues to stir, stir the back and regulate pH value till 8 with 0.3% dimethylethanolamine, add 50% modified polybutadiene resin in 8% distilled water, add 0.2% soybean lecithin and 0.5% Natvosol under the high-speed stirring, stir after 30 minutes, stirring at low speed adds 7.5% aluminium-silver slurry and the 20% water-compatible amino resin linking agent configure, stirs all and discharging afterwards, obtains final product.
The homemade aqueous automobile metal flash paint of the present invention and commercially available polychromatic finish performance comparison result are as shown in table 2:
Table 2
Can find out that from above every performance comparison the water-based metal flashing base coat product performance of grinding certainly are suitable with the performance of commercially available prod, but the unit weight cost is obviously low more than 20%, can drop into construction under the immovable substantially situation of existing coating equipment.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (8)
1. aqueous automobile metal flash paint, it is characterized in that: described metal flash paint is made up of following component, aqueous dispersion 3.6～5.2%, water-base resin 45～52%, water aluminum-silver slurry 7～10 auxiliary agents 9.5 ~ 13.3%, linking agent 15 ~ 25%, all the other are water.
2. aqueous automobile metal flash paint according to claim 1, it is characterized in that: described auxiliary agent comprises following component, wetting dispersing agent 1～2%, ground wetting agent 0.1～0.3%, PH conditioning agent 0.2～0.5%, auxiliary agent 8～10% and thickening material 0.2～0.5%.
3. aqueous automobile metal flash paint according to claim 1, it is characterized in that: described aqueous dispersion is the water soluble acrylic acid polyurethane dispersions, described water-base resin is the modified polybutadiene resin.
4. aqueous automobile metal flash paint according to claim 2, it is characterized in that: described wetting dispersing agent is dimethyl sulfoxide (DMSO), described ground wetting agent is soybean lecithin, described PH conditioning agent is dimethylethanolamine, described solubility promoter is the propylene glycol butyl ether, and described thickening material is Natvosol.
5. aqueous automobile metal flash paint according to claim 1, it is characterized in that: described linking agent is the water-compatible amino resin linking agent.
6. aqueous automobile metal flash paint according to claim 1, it is characterized in that: described water is distilled water.
7. prepare each described aqueous automobile metal flash paint of claim 2 ~ 6, it is characterized in that: described preparation technology comprises the steps, the preparation aluminium-silver slurry, add solubility promoter, wetting dispersing agent successively and stir, then add the aluminium-silver slurry powder, add dispersion after stirring, continuing to stir and add the PH conditioning agent is 7.5 ~ 8.5 up to pH value, obtains aluminium-silver slurry; Water-base resin is added in the distilled water, add ground wetting agent and thickening material under the high-speed stirring, stirring at low speed adds the aluminium-silver slurry and the linking agent that configure, and the back discharging that stirs obtains target product.
8. aqueous automobile metal flash paint preparation technology according to claim 7, it is characterized in that: described pH value is 8.
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| CN201310320812XA CN103333575A (en) | 2013-07-26 | 2013-07-26 | Water-based automobile metallic flashing paint and preparation technology thereof |
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| CN201310320812XA CN103333575A (en) | 2013-07-26 | 2013-07-26 | Water-based automobile metallic flashing paint and preparation technology thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773166A (en) * | 2014-01-27 | 2014-05-07 | 苏州乾雄金属材料有限公司 | Metal paint |
| CN104460189A (en) * | 2014-12-19 | 2015-03-25 | 苏州菲博特智能科技有限公司 | Surveillance camera protection hood |
| CN106433344A (en) * | 2016-07-20 | 2017-02-22 | 江苏足迹涂料有限公司 | Water-based metal flashing paint and preparation method thereof |
| CN116120828A (en) * | 2022-12-29 | 2023-05-16 | 广州亦盛环保科技有限公司 | Water-based aluminum silver powder coating with excellent covering property, and preparation method and application thereof |
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| JPH04339870A (en) * | 1991-05-16 | 1992-11-26 | Mitsui Cyanamid Co | Low-temperature curing electrodeposition coating resin composition |
| CN101029197A (en) * | 2006-02-28 | 2007-09-05 | 上海捷邦精细化工有限公司 | Metal water flashing base coat of automobile |
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| CN102604497A (en) * | 2012-02-15 | 2012-07-25 | 上海天地涂料有限公司 | Water-based metallic flashing paint and preparation method of the flashing paint |
| CN102876167A (en) * | 2012-10-08 | 2013-01-16 | 浙江圣力邦漆业有限公司 | Aqueous silvery aluminum powder flashing paint |
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2013
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773166A (en) * | 2014-01-27 | 2014-05-07 | 苏州乾雄金属材料有限公司 | Metal paint |
| CN104460189A (en) * | 2014-12-19 | 2015-03-25 | 苏州菲博特智能科技有限公司 | Surveillance camera protection hood |
| CN106433344A (en) * | 2016-07-20 | 2017-02-22 | 江苏足迹涂料有限公司 | Water-based metal flashing paint and preparation method thereof |
| CN116120828A (en) * | 2022-12-29 | 2023-05-16 | 广州亦盛环保科技有限公司 | Water-based aluminum silver powder coating with excellent covering property, and preparation method and application thereof |
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