CN101747829A - Stone-hitting resisting automobile middle coating - Google Patents
Stone-hitting resisting automobile middle coating Download PDFInfo
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- CN101747829A CN101747829A CN201010042095A CN201010042095A CN101747829A CN 101747829 A CN101747829 A CN 101747829A CN 201010042095 A CN201010042095 A CN 201010042095A CN 201010042095 A CN201010042095 A CN 201010042095A CN 101747829 A CN101747829 A CN 101747829A
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Abstract
The invention discloses a stone-hitting resisting automobile middle coating which is composed A and B components, A:B is equal to 1:(1.5-8), A component is formed by dissolving polyisocyanate soft resin and high crosslinking polyisocyanate hard resin in solvent, B component is formed by dissolving acrylic resin, titanium pigment, furnace black, talcum powder, dispersing auxiliary, functional resin, anti-sedimentation assistant, leveling agent and drying accelerator in solvent; in the stone-hitting resisting automobile middle coating, by matching more than two different soft and hard polyisocyanate resins which are self-prepared, the automobile middle coating which has good stone-hitting resisting performance and good construction rubbing property is obtained; the two components in the stone-hitting resisting automobile middle coating have good mild water resistance, acid resistance and alkali resistance, the film is flexible and hard and has adhesive force with a bottom layer and good bonding force with a surface layer; the thickness of dry film of the film formed by one step can reach 40-60mum, the leveling property is good, the surface roughness of the middle coating can reach Ra:0.13, DOI (Dorigon) average value of spraying finishing paint rear automobile body is 83-86 and reaches high level.
Description
Technical field
The present invention relates to make the automotive paints of lacquer technical field, be specifically related to a kind of anti-stone and hit in two component automobiles of excellent performance and paint.
Background technology
Automobile all has the possibility that is subjected to all kinds of dusts storm, hard thing attack constantly, particularly easier being damaged of percussion coating of running at high speed and being subjected to hard thing, so the anti-stone of car surface paint film is hit demands for higher performance as the outdoor vehicles.
In the prior art, it has been generally acknowledged that by adding and subtracting all kinds of resin content of various differences and can adjust the anti-stone of automobile finish film and hit performance.Concrete grammar is as follows:
1, add 1%～3% aminoresin in middle japanning, can painted hardness in the raising be seen and this be hit the result to good anti-stone.
2, in middle japanning, add 1%～3% binding resin, painted snappiness and adhesivity in the raising.
3, add resin 5%～10% by existing resin ratio in the prescription, painted resin part in the raising will be because the raising of resin part will improve the various mechanical propertys of paint film certainly.
4, in middle japanning, add urethane resin 1%～2%, tough because the paint film of this resin formation has in hard, but its price is more expensive.
Because bus body painting technology and car coating technology are not quite similar, the painted grinability is good in requiring in the bus body painting, polishing back roughness also will reach certain requirement, the paint film that forms has certain acidproof, alkali resistance and anti-stone hits performance, take into account these several indexs and can not adopt the simple plus-minus resin method of saying above.And, the paint film that adopts above-mentioned plus-minus resin method to obtain, its soft durometer of filming difficulty satisfies the car coating processing requirement; In addition, this paint film promptly enables to reach the requirement of resistance property, also is difficult to satisfy that coating requires is acidproof simultaneously, the polishing performance in alkali resistance and the construction process.
Summary of the invention
The present invention is directed to single paracyanogen acid esters of the prior art or amino resin crosslinked film forming, its soft durometer of filming difficulty satisfies the car coating processing requirement, be difficult to reach the requirement of resistance property, be difficult to also simultaneously to satisfy that coating requires is acidproof, the deficiencies such as polishing performance in alkali resistance and the construction process, a kind of good middle japanning of a kind of anti-hitting property of stone that obtains that cooperated by two or more different soft and hard resins is provided.
The object of the present invention is achieved like this: the anti-stone of two components hits in the automobile paints, and is made up of first, second two components:
The composition of first component and weight percent are:
5
Solvent～10
6
Polymeric polyisocyanate soft resin 5～85
1
High crosslinked polyisocyanate acid esters hardened resin 0～25
Wherein solvent is a butylacetate, ethyl acetate, and methyl iso-butyl ketone (MIBK), a kind of in the pimelinketone, or wherein two or three mix with arbitrary proportion;
The composition of component B and weight percent are:
Acrylic resin 20～40
Titanium dioxide 25～45
Furnace treated black 0.1～0.9
Talcum powder 5～25
Dispersing auxiliary 0.5～1.0
Functional resin 5～10
Anti-precipitation aid 0.5～1.5
Leveling auxiliary agent 0.1～0.5
Dry promotor 0.1～0.5
Solvent 15～35
Wherein functional resin is: any in bisphenol F epoxy resin, bisphenol A epoxide resin, the aldehyde ketone resin; Or wherein two or three mix with arbitrary proportion;
Wherein dispersing auxiliary is: any in a new generation anti-coacervation polyether polyols with reduced unsaturation dispersion agent, unsaturated polyester acid amides and the acid esters salt wetting dispersing agent or wherein two kinds mix with arbitrary proportion;
Wherein anti-precipitation aid: be in aerosil, acid amides modified waxes liquid, the hydrogenated castor oil any; Or wherein two or three mix with arbitrary proportion;
Wherein leveling auxiliary agent is: any in acrylic copolymer flow agent, the fluorine-carbon modified polyacrylate flow agent or wherein two kinds mix with arbitrary proportion;
Solvent is a dimethylbenzene, butylacetate, and methyl iso-butyl ketone (MIBK), the S-100A solvent, a kind of in the DBE solvent, or wherein two or three mix with arbitrary proportion;
First, component B mixing quality ratio is: first: second=1: (1.5～8)
With respect to prior art, the present invention has following characteristics:
1, cooperates by homemade two or more different soft and hard polyisocyanate resins and obtain a kind ofly not only having had the good but also tool of anti-hitting property of stone and well constructing and paint in the automobile of grinability.
2, the anti-stone of this two component hits to paint in the automobile and has excellent heatproof water, acidproof, alkali resistance; Paint film is pliable and tough and hard, with bottom sticking power and surface layer bonding force excellence.
3, to hit in the automobile japanning construction solid part higher for the anti-stone of this two component, the one-pass film-forming build can reach 40～60 μ m, good leveling property, and the floating coat surfaceness reaches about Ra:0.13, the DOI of vehicle body (Dorigon) mean value 83～86 reaches higher level behind the spray paint.
But 4 drying at room temperature, low-temperature bake solidifies, and helps energy-conservation.
Embodiment
Anti-stone of the present invention hits in the automobile paints, and is made up of first, second two components:
Wherein the composition of first component and weight percent are:
Solvent 5～10
Polymeric polyisocyanate soft resin 65～85
High crosslinked polyisocyanate acid esters hardened resin 10～25
Wherein solvent is a butylacetate, ethyl acetate, and methyl iso-butyl ketone (MIBK), a kind of in the pimelinketone, or wherein two or three mix with arbitrary proportion;
Wherein the composition of component B and weight percent are:
Acrylic resin 20～40
Titanium dioxide 25～45
Furnace treated black 0.1～0.9
Talcum powder 5～25
Dispersing auxiliary 0.5～1.0
Functional resin 5～10
Anti-precipitation aid 0.5～1.5
Leveling auxiliary agent 0.1～0.5
Dry promotor 0.1～0.5
Solvent 15～35
Wherein functional resin is: any in bisphenol F epoxy resin, bisphenol A epoxide resin, the aldehyde ketone resin; Or wherein two or three mix with arbitrary proportion;
Wherein dispersing auxiliary is: any in a new generation anti-coacervation polyether polyols with reduced unsaturation dispersion agent, unsaturated polyester acid amides and the acid esters salt wetting dispersing agent or wherein two kinds mix with arbitrary proportion;
Wherein anti-precipitation aid: be in aerosil, acid amides modified waxes liquid, the hydrogenated castor oil any; Or wherein two or three mix with arbitrary proportion;
Wherein leveling auxiliary agent is: any in acrylic copolymer flow agent, the fluorine-carbon modified polyacrylate flow agent or wherein two kinds mix with arbitrary proportion;
Solvent is a dimethylbenzene, butylacetate, and methyl iso-butyl ketone (MIBK), the S-100A solvent, a kind of in the DBE solvent, or wherein two or three mix with arbitrary proportion;
First, component B mixing quality ratio is: first: second=1: (1.5～8).
Dry promotor is wherein selected the siccative of prior art for use, as dibutyl tin etc.
Embodiment 1:
1, takes by weighing the polymeric polyisocyanate soft resin 850Kg of first component, polymeric polyisocyanate hardened resin 100Kg, butylacetate 50Kg as solvent adds in cleaning, the exsiccant stainless steel cylinder, (500～800rmp) stir with middling speed, the after-filtration that is up to the standards is with packing behind the air in the nitrogen replacement pail pack.
2, take by weighing the acrylic resin 220Kg of component B, hydrogenated castor oil 5Kg as anti-precipitation aid (anti-precipitating action), titanium dioxide 350Kg as tinting pigment, furnace treated black 2Kg as tinting pigment, superfine talcum powder 120Kg as stopping composition, BYK-163 3Kg as dispersing auxiliary, mix and stir as the butylacetate of solvent and DBE solvent 300Kg (gross weight 1000Kg), change in the paint cylinder below being dispersed to fineness 20 μ m with sand mill, add merit performance resin bisphenol F epoxy resin 50Kg, adding is as the dibutyl tin 5Kg of dry promotor (dry promoter action), as the BYK-361 2Kg of leveling auxiliary agent (levelling effect), as the butylacetate 10Kg (gross weight 1000Kg) of solvent.
3, above-mentioned first, component B is mixed in proportion, get first component 2Kg in the reality and mix the first component with component B 8Kg: second=1: 4, adjust the laggard line space gas blowout of working viscosity 17～30S (determining) filtration and be coated with construction according to working-yard temperature.
Proportioning of the present invention, the first component: the concrete numerical value that second can be selected is, 1: 1.5,1: 2,1: 2.5,1: 2.8,1: 3,1: 3.2,1: 3.5,1: 3.8,1: 4,1: 4.2,1: 4.5,1: 4.8,1: 5,1: 5.2,1: 5.5,1: 5.8,1: 6,1: 6.5,1: 6.8,1: 7,1: 7.5,1: 8 etc., can both satisfy actual needs, realize the object of the invention.
The anti-stone of two components of the present invention hits in the automobile paints, and quotes GB/T 1724-1979, GB/T 1725-1979 detects paint vehicle, and its fineness is 20 μ m, and solids content is 66%, accord with Q/CYQ 226-2009 standard; Quote GB/T 1728-1979, GB/T 1731-1993, GB/T 1732-1993, GB/T1770-1979, GB/T 5209-1985, GB/T 6739-1996, GB/T 9274-1988 detects paint film, its surface drying time is 30min., do solid work and be 6h., snappiness is 1mm, shock-resistance is 50cm, pencil hardness is H, sticking power is 1 grade, 240h. is non-foaming for heatproof hot water, wrinkle resistant, do not come off, non-corrosive, the sulfuric acid of anti-0.05mol/L 24h. and the sodium hydroxide of anti-0.1mol/L 24h. are not clamminess, non-foaming, do not come off, anti-hitting property of stone is not more than 9 grades, accord with Q/CYQ 226-2009 standard-required.
Claims (1)
1. anti-stone hits in the automobile paints, and it is characterized in that: be made up of first, second two components:
Wherein the composition of first component and weight percent are:
Solvent 5～10
Polymeric polyisocyanate soft resin 65～85
High crosslinked polyisocyanate acid esters hardened resin 10～25
Wherein solvent is a butylacetate, ethyl acetate, and methyl iso-butyl ketone (MIBK), a kind of in the pimelinketone, or wherein two or three mix with arbitrary proportion;
Wherein the composition of component B and weight percent are:
Acrylic resin 20～40
Titanium dioxide 25～45
Furnace treated black 0.1～0.9
Talcum powder 5～25
Dispersing auxiliary 0.5～1.0
Functional resin 5～10
Anti-precipitation aid 0.5～1.5
Leveling auxiliary agent 0.1～0.5
Dry promotor 0.1～0.5
Solvent 15～35
Wherein functional resin is: any in bisphenol F epoxy resin, bisphenol A epoxide resin, the aldehyde ketone resin; Or wherein two or three mix with arbitrary proportion;
Wherein dispersing auxiliary is: any in anti-coacervation polyether polyols with reduced unsaturation dispersion agent, unsaturated polyester acid amides and the acid esters salt wetting dispersing agent or wherein two kinds mix with arbitrary proportion;
Wherein anti-precipitation aid: be in aerosil, acid amides modified waxes liquid, the hydrogenated castor oil any; Or wherein two or three mix with arbitrary proportion;
Wherein leveling auxiliary agent is: any in acrylic copolymer flow agent, the fluorine-carbon modified polyacrylate flow agent or wherein two kinds mix with arbitrary proportion;
Solvent is a dimethylbenzene, butylacetate, and methyl iso-butyl ketone (MIBK), the S-100A solvent, a kind of in the DBE solvent, or wherein two or three mix with arbitrary proportion;
First, component B mixing quality ratio is: first: second=1: (1.5～8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010042095A CN101747829A (en) | 2010-01-19 | 2010-01-19 | Stone-hitting resisting automobile middle coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010042095A CN101747829A (en) | 2010-01-19 | 2010-01-19 | Stone-hitting resisting automobile middle coating |
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| Publication Number | Publication Date |
|---|---|
| CN101747829A true CN101747829A (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010042095A Pending CN101747829A (en) | 2010-01-19 | 2010-01-19 | Stone-hitting resisting automobile middle coating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504680A (en) * | 2011-10-27 | 2012-06-20 | 重庆三峡油漆股份有限公司 | Automobile bi-component intermediate paint resistant to rock impact |
| CN106085056A (en) * | 2016-07-28 | 2016-11-09 | 中华制漆（深圳）有限公司 | Electric iron coating and preparation, using method |
| CN107151501A (en) * | 2017-05-26 | 2017-09-12 | 吴永芬 | A kind of automobile anti-stoning floating coat paint and preparation method thereof |
| CN107189612A (en) * | 2017-07-13 | 2017-09-22 | 郑州精益达汽车零部件有限公司 | A kind of environmentally friendly automobile-used two-component floating coating |
-
2010
- 2010-01-19 CN CN201010042095A patent/CN101747829A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504680A (en) * | 2011-10-27 | 2012-06-20 | 重庆三峡油漆股份有限公司 | Automobile bi-component intermediate paint resistant to rock impact |
| CN102504680B (en) * | 2011-10-27 | 2013-12-04 | 重庆三峡油漆股份有限公司 | Automobile bi-component intermediate paint resistant to rock impact |
| CN106085056A (en) * | 2016-07-28 | 2016-11-09 | 中华制漆（深圳）有限公司 | Electric iron coating and preparation, using method |
| CN107151501A (en) * | 2017-05-26 | 2017-09-12 | 吴永芬 | A kind of automobile anti-stoning floating coat paint and preparation method thereof |
| CN107151501B (en) * | 2017-05-26 | 2020-02-04 | 广东嘉盛环保高新材料股份有限公司 | Stone-impact-resistant middle coating paint for automobiles and preparation method thereof |
| CN107189612A (en) * | 2017-07-13 | 2017-09-22 | 郑州精益达汽车零部件有限公司 | A kind of environmentally friendly automobile-used two-component floating coating |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Open date: 20100623 |