CN102146245B - Lanxiang ultra black automobile refinishing coating and preparation method thereof - Google Patents
Lanxiang ultra black automobile refinishing coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses Lanxiang ultra black automobile refinishing coating, which is prepared from the following raw materials in part by weight: 74.29 to 78.29 parts of acrylic resin, 2.40 to 2.60 parts of high-pigment carbon black powder, 1.90 to 2.10 parts of super dispersant, 0.95 to 1.05 percent of synergist, 0.07 to 0.09 part of high-pigment dye, 0.45 to 0.55 part of nano titanium dioxide and 16.63 to 18.63 parts of mixed solvent. Through formula design, the blackness of the Lanxiang ultra black automobile refinishing coating disclosed by the invention is deep enough, the performance and hue effect of the Lanxiang ultra black automobile refinishing coating completely meet the requirements of high-quality product markets. Through formula design, the Lanxiang ultra black automobile refinishing coating disclosed by the invention is manufactured by using a material with a high performance to price ratio as a raw material, so Lanxiang ultra black automobile refinishing coating has an absolute advantage in manufacturing cost compared with imported products; therefore, the Lanxiang ultra black automobile refinishing coating can bring a greater benefit space for users and improves market competitive power of the users. The invention also discloses a preparation method of the Lanxiang ultra black automobile refinishing coating.
Description
Technical field
The present invention relates to automobile retouching paint technical field, be specifically related to mutually goth black car refinishing paint of a kind of indigo plant and preparation method thereof.
Background technology
At present, along with improving constantly of socioeconomic high speed development and living standards of the people, automobile industry has had significant progress, the recoverable amount of automobile and volume of production and marketing all have growth at full speed, this so that the car paint consumption significantly increase, now, in the full car application of black car, the sectional repair, need to use the mutually goth black colored paint of indigo plant, the black that presents of blue mutually goth black colored paint is more dark more welcome, and the blackness of blue mutually goth black colored paint and blue meet have influence on automobile black whether enough deeply.In the mutually goth black colored paint formulation design of existing indigo plant, great majority all only adopt single high-carbon black pigment powder, add that then dispersion agent, resin just begin to mill, like this, the blackness that the mill base of milling out just can only be general, and its form and aspect are with the reddish yellow phase.
Summary of the invention
The object of the invention is to, mutually goth black car refinishing paint of a kind of indigo plant and preparation method thereof is provided, by the improvement of prescription, the blackness of improving product.
The objective of the invention is to be achieved through the following technical solutions: the mutually goth black car refinishing paint of a kind of indigo plant, made by the raw material of following weight part: 74.29 parts～78.29 parts of acrylic resins, 2.40 parts～2.60 parts in high-carbon black pigment powder, 1.90 parts～2.10 parts of super dispersion agents, 0.95 part～1.05 parts of multiplying agent, 0.07 part～0.09 part of high colouring substance, 0.45 part～0.55 part of nano titanium oxide, 16.63 parts～18.63 parts of mixed solvents.
Preferably, described multiplying agent is a kind of phthalocyanine blue derivative.
Preferably, described mixed solvent comprises that weight ratio is 1: 1: 2: 1 N-BUTYL ACETATE, vinyl acetic monomer, dimethylbenzene, glycol methyl ether acetate.
Preferably, described high colouring substance is that a kind of metallized dye is black.
Preferably, described super dispersion agent is a kind of polymer wetting dispersing agent.
Preferably, described acrylic resin is a kind of hydroxy acryl acid resin.
The preparation method of the mutually goth black car refinishing paint of a kind of indigo plant disclosed by the invention comprises the steps:
1) raw material of the following weight part of preparation: 74.29 parts～78.29 parts of acrylic resins, 2.40 parts～2.60 parts in high-carbon black pigment powder, 1.90 parts～2.10 parts of super dispersion agents, 0.95 part～1.05 parts of multiplying agent, 0.07 part～0.09 part of high colouring substance, 0.45 part～0.55 part of nano titanium oxide, 16.63 parts～18.63 parts of mixed solvents;
2) above-mentioned raw materials is stirred;
3) raw material after will stirring grinds;
4) raw material after will grinding carries out secondary stirring.
Preferably, step 2) in, raw material drops into and disperses to stir under 1100～1300 rev/mins rotating speed 25 minutes～40 minutes with high speed dispersor in the cylinder.
Preferably, step 4) in, raw material drops into and disperses to stir under 600-800 rev/min rotating speed 25 minutes～40 minutes with high speed dispersor in the cylinder.
Preferably, step 3) in, raw material is ground with sand mill, until fineness≤5um.
Compared with prior art, adopt method of the present invention, have the following advantages:
1, the mutually goth black car refinishing paint of indigo plant of the present invention, by formulating of recipe, blackness is enough dark, and its performance and form and aspect effect can reach the requirement in expensive goods market fully;
2, the mutually goth black car refinishing paint of indigo plant of the present invention by formulating of recipe, adopts the higher material of cost performance as raw material, aspect manufacturing cost, compares with imported product, has overwhelming superiority, and brings larger profit margin to the client, has improved the market competitiveness.
Embodiment
For making goal of the invention of the present invention, technology contents, effect clearer, below be elaborated by specific embodiment:
Embodiment one
1, prepares following raw material: 74.29 parts of acrylic resins, 2.4 parts in high-carbon black pigment powder, 1.9 parts of super dispersion agents, 0.95 part of multiplying agent, 0.075 part of high colouring substance, 0.45 part of nano titanium oxide, 16.630 parts of mixed solvents;
Wherein, mixed solvent is the mixture of N-BUTYL ACETATE, vinyl acetic monomer, dimethylbenzene, glycol methyl ether acetate;
2, will disperse cylinder to keep flat to weighbridge, 70% the acrylic resin that adds formula ratio enters to disperse in the cylinder, and the super dispersion agent that metering adds formula ratio enters to disperse in the cylinder, metering adds the carbon powder of formula ratio under manual the stirring, multiplying agent, dyestuff powder, nano titanium oxide; Add the acrylic resin of residue formula ratio, will disperse cylinder to move under the high speed dispersor, disperse axle to move to the central position that disperses cylinder, firmly disperse well cylinder, the good static ground wire of clamping connection.Mixed solvent after throwing acrylic resin, is thrown powder and dropped into before;
3, open high speed dispersor, high speed dispersor is slowly transferred to 1200 turn/stir 30min about min;
4, stop to stir, rise high speed dispersor, will disperse axle and dispersion impeller to clean up with remaining a small amount of mixed solvent;
5, the mill base that stirs is moved to the sand mill special place, open the circulation temperature lowering water valve of sand mill, discharge nozzle is put to the clean sky that is used for connecting material disperseed cylinder, the good static ground wire of the cylinder clamping connection that connects material, open pneumavalve, when discharge nozzle has when expecting out, can open main motor;
6, will disperse cylinder to clean one time with remaining mixed solvent during twice before disperseing, scrape fineness when grinding the 5th time, when being ground to fineness≤5um, after form and aspect are confirmed, stop grinding;
7, will disperse cylinder to move under the paint high speed dispersor, rise high speed dispersor, dispersion impeller is drop in the dispersion cylinder, disperse axle to move to the central position that disperses cylinder, fix and disperse cylinder and the good static ground wire of clamping connection, open high speed dispersor, turn 600/min stirs 40min, with the mixed solvent adjusting viscosity of remainder to acceptability limit, by the standard detection of taking a sample.Detecting qualified rear usefulness 300 order filter cloths filters and packages.
Embodiment two
1, prepares following raw material: 76 parts of acrylic resins, 2.5 parts in high-carbon black pigment powder, 2.00 parts of super dispersion agents, 1 part of multiplying agent, 0.08 part of high colouring substance, 0.5 part of nano titanium oxide, 17.63 parts of mixed solvents;
Wherein, mixed solvent is the mixture of N-BUTYL ACETATE, vinyl acetic monomer, dimethylbenzene, glycol methyl ether acetate;
2, will disperse cylinder to keep flat to weighbridge, 70% the acrylic resin that adds formula ratio enters to disperse in the cylinder, and the dispersion agent that metering adds formula ratio enters to disperse in the cylinder, and metering adds the carbon powder of formula ratio, multiplying agent, dyestuff powder, nano titanium oxide under manual the stirring; Add the acrylic resin of residue formula ratio, will disperse cylinder to move under the high speed dispersor, disperse axle to move to the central position that disperses cylinder, firmly disperse well cylinder, the good static ground wire of clamping connection; Mixed solvent after throwing acrylic resin, is thrown powder and dropped into before;
3, open high speed dispersor, high speed dispersor is slowly transferred to 1100 turn/stir 30min about min;
4, stop to stir, rise high speed dispersor, will disperse axle and dispersion impeller to clean up with remaining a small amount of mixed solvent;
5, the mill base that stirs is moved to the sand mill special place, open the circulation temperature lowering water valve of sand mill, discharge nozzle is put to the clean sky that is used for connecting material disperseed cylinder, the good static ground wire of the cylinder clamping connection that connects material, open pneumavalve, when discharge nozzle has when expecting out, can open main motor;
6, will disperse cylinder to clean one time with remaining mixed solvent during twice before disperseing, scrape fineness when grinding the 5th time, when being ground to fineness≤5um, after form and aspect are confirmed, stop grinding;
7, will disperse cylinder to move under the paint high speed dispersor, rise high speed dispersor, dispersion impeller is drop in the dispersion cylinder, disperse axle to move to the central position that disperses cylinder, fix and disperse cylinder and the good static ground wire of clamping connection, open high speed dispersor, turn 700/min stirs 38min, with the mixed solvent adjusting viscosity of remainder to acceptability limit, by the standard detection of taking a sample.Detecting qualified rear usefulness 300 order filter cloths filters and packages.
Embodiment three
1, prepares following raw material: 78.29 parts of acrylic resins, 2.6 parts in high-carbon black pigment powder, 2.1 parts of super dispersion agents, 1.05 parts of multiplying agent, 0.09 part of high colouring substance, 0.55 part of nano titanium oxide, 18.63 parts of mixed solvents;
2, will disperse cylinder to keep flat to weighbridge, 70% the acrylic resin that adds formula ratio enters to disperse in the cylinder, and the dispersion agent that metering adds formula ratio enters to disperse in the cylinder, and metering adds the carbon powder of formula ratio, multiplying agent, dyestuff powder, nano titanium oxide under manual the stirring; Add the acrylic resin of residue formula ratio, will disperse cylinder to move under the high speed dispersor, disperse axle to move to the central position that disperses cylinder, firmly disperse well cylinder, the good static ground wire of clamping connection; Mixed solvent after throwing acrylic resin, is thrown powder and dropped into before;
3, open high speed dispersor, high speed dispersor is slowly transferred to 1200 turn/stir 30min about min;
4, stop to stir, rise high speed dispersor, will disperse axle and dispersion impeller to clean up with remaining a small amount of mixed solvent;
5, the mill base that stirs is moved to the sand mill special place, open the circulation temperature lowering water valve of sand mill, discharge nozzle is put to the clean sky that is used for connecting material disperseed cylinder, the good static ground wire of the cylinder clamping connection that connects material, open pneumavalve, when discharge nozzle has when expecting out, can open main motor;
6, will disperse cylinder to clean one time with remaining mixed solvent during twice before disperseing, scrape fineness when grinding the 5th time, when being ground to fineness≤5um, after form and aspect are confirmed, stop grinding;
7, will disperse cylinder to move under the paint high speed dispersor, rise high speed dispersor, dispersion impeller is drop in the dispersion cylinder, disperse axle to move to the central position that disperses cylinder, fix and disperse cylinder and the good static ground wire of clamping connection, open high speed dispersor, turn 800/min stirs 39min, with the mixed solvent adjusting viscosity of remainder to acceptability limit, by the standard detection of taking a sample.Detecting qualified rear usefulness 300 order filter cloths filters and packages.
Acrylic resin is a kind of Hydroxylated acrylic resin among the above embodiment, selects Guangdong Synchronous Chemical Industry Co., Ltd's product, and model is TB65029P.This acrylic resin molecular weight is moderate, and pigment is had extraordinary wetting flowability, and index of correlation sees the following form 1:.
Table 1
| Outward appearance | As clear as crystal liquid |
| Acid number mgKOH/g | 4～9 |
| Solids content % | 65±2 |
| 25 ℃ of rotary viscosity/Pa.S | 5.0～10.0 |
High-carbon black pigment powder among the above embodiment is selected U.S. Columbia Co., Ltd, product type is 5000, and this kind high-carbon black pigment powder can be rated as the best high-carbon black pigment powder of global blackness, compared with similar products, it has the dispersing property of well milling, and the product index of correlation sees the following form 2:
Table 2
| Outward appearance | Black powder |
| Oil number ml/100g | 97 |
| Fugitive constituent % | 11 |
Multiplying agent among the above embodiment is a kind of phthalocyanine blue derivative, select German LUBRIZOL company product, model is Solsperse5000, the pigment that this multiplying agent is milled and disperseed for difficulty, for example high-specific surface area is goth black and pigment dyestuff, can improve the dispersing property of milling, strengthen the color developing of pigment, have simultaneously the viscosity of reduction, adjust form and aspect, good flowability and stability in storage are arranged behind the system lacquer.The product index of correlation sees the following form 3:
Table 3
| Outward appearance | Blue powder |
| Proportion | 1.14g/cm3 |
| Fusing point | ＞300℃ |
| Moisture content | ＜2.0％ |
High colouring substance among the above embodiment is that a kind of metallized dye is black, select German BASF AG product, model is Neozapon Black X51, it has good thermotolerance and light fastness, add in the coating, have the effect that there is very high blackness positive side, the product index of correlation sees the following form 4:
Table 4
| Outward appearance | Black powder |
| Fugitive constituent % | 2.5 |
| Screenings | Nothing |
| Photostabilization | 7-8 |
Nano titanium oxide among the above embodiment is selected Japanese Shi Yuan company product, and model is TTO-55D.This product has good dispersiveness, the ultramicron of unique shape, and excellent band indigo plant is the transparency and light fastness mutually, and the product index of correlation sees the following form:
Table 5
| Outward appearance | White powder |
| Oil number g/100g | 40 |
| PH value | 7.5 |
| TIO2％ | 78.5 |
| Fugitive constituent % | 2.45 |
Super dispersion agent among the above embodiment is a kind of polymer wetting dispersing agent, selects German LUBRIZOL company product, and model is Solsperse32500.It is key starting material.Whether coating disperses color developing and stable system, sum up a bit be this dispersion system flocculating degree how.As not adding dispersion agent, resin again can not be when surface of pigments forms the adsorption layer of adequate thickness in solvent based coating, and pigment just easily produces and flocculates, and severe patient can form the precipitation caking.The bad fundamental cause of brushing-on color dispersions system stability that Here it is, this can cause the difference in the qualitative fluctuation and form and aspect between the product batches, in order to reduce this shortcoming, the present inventor finds, can when pigment is made, carry out surface modification treatment, attach suitable wetting dispersing agent when perhaps system is coated with lacquer and improved.Add suitable wetting dispersing agent so namely adopt in the present embodiment when the system lacquer, the main effect of wetting dispersing agent is: increase the improving gloss levelling property of filming; The viscosity that reduces mill base improves liquidity; Improve the stability that coating is stored; Improve pigmenting power and opacifying power; Obtain the wetting dispersing agent that prevents loose colour, sagging, effect of settling use control flocculation and can prevent the loose colour of secondary color lacquer, grow dim, increase the stability of storage; Improve the physical and chemical performance of filming; Change the rheological of coating; Save time and the energy.This dispersion agent can promote the moistening of pigment, shortens dispersion process, effectively prevents pigment flocculation by space steric effect.Because the small granularity of the pigment that disperses, system can obtain excellent colourity and glossiness.This dispersion agent prevents flocculation and the sedimentation of coating and pigment slurry in can be long time stored.This dispersion agent is that nearly all pigment is had good wetting dissemination, particularly to acid carbon black and followingly severally obtain in coating industry widely that pigment dyestuff has extraordinary dispersion and wetting action.Because the singularity of composition, this dispersion agent can use in very large polarity scope and not have problems.And this dispersion agent is 100% activeconstituents, good fluidity.When being applied to the preparation of mill base, this dispersion agent has good effect, but also can accelerate cross-linking process its rheology, mobile improvement.When arriving concrete operation, this dispersion agent can help distribution and the arrangement of pigment, makes paint film be rich in metalluster.No matter what solvent is, when being applied to acid carbon black color slurry, this dispersion agent can both make its viscosity be low to moderate under the 200mPa.Sc.And mill base shows the good preservation performance.
This dispersion agent is a kind of polymer wetting dispersing agent of VOC free.Its overall characteristic, 100% activeconstituents for example, high molecular structure in the consistency of water-based, oiliness, solventless coatings system, application etc. in the opposed polarity solvent, is the incomparable advantage of other auxiliary agent.Specific targets such as following table 6:
Table 6
| Outward appearance | Light yellow liquid |
| Viscosity (23 ℃) | About 70Pa.S |
| Non-volatile matter | 100％ |
| Density (20 ℃) | 1.13g/cm3 |
Formulation analysis:
Multiplying agent: it was a kind of dispersion agent with blue phase originally, and it should dissemination to pigment in prescription the inside, can make again the overall color of prescription mutually close toward indigo plant.
Nano titanium oxide: although it is white pigment, but its permeability is very strong, almost near transparent pigment, its maximum characteristics are that the ethereal blue phase all is with in positive side, side particularly, can make black more be with blue phase although it adds prescription the inside to because have the colour killing effect in secondary color prescription the inside, it disappeared former carbon black the inside with the reddish yellow form and aspect.
High colouring substance: add nano titanium oxide original black is shoaled, so, in order to make black become more black, so add high colouring substance in the prescription the inside, because the positive side of high colouring substance all is very pitch black, side particularly, it just plays the regulating effect of pitch black effect so add the prescription the inside to.
By this formulating of recipe, so the mutually goth black colored paint of indigo plant of the present embodiment has an enough dark blackness.Effect comparison:
Four kinds of typical products in the mutually goth black colored paint of indigo plant of the present invention and the prior art are adopted identical spraying method, spray on the spray plate, estimate its blackness, spray plate ready visual contrast is the result see table:
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with the determined scope of claim.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. mutually goth black car refinishing paint of indigo plant, it is characterized in that, raw material by following weight part is made: 74.29 parts～78.29 parts of acrylic resins, 2.40 parts～2.60 parts in high-carbon black pigment powder, 1.90 parts～2.10 parts of super dispersion agents, 0.95 part～1.05 parts of multiplying agent, 0.07 part～0.09 part of high colouring substance, 0.45 part～0.55 part of nano titanium oxide, 16.63 parts～18.63 parts of mixed solvents, described high colouring substance are that German BASF AG model is the product of Neozapon Black X51.
2. the mutually goth black car refinishing paint of indigo plant as claimed in claim 1 is characterized in that, described multiplying agent is a kind of phthalocyanine blue derivative.
3. the mutually goth black car refinishing paint of indigo plant as claimed in claim 1 is characterized in that, described mixed solvent comprises that weight ratio is N-BUTYL ACETATE, vinyl acetic monomer, dimethylbenzene, the glycol methyl ether acetate of 1:1:2:1.
4. the mutually goth black car refinishing paint of indigo plant as claimed in claim 1 is characterized in that, described high colouring substance is that a kind of metallized dye is black.
5. the mutually goth black car refinishing paint of indigo plant as claimed in claim 1 is characterized in that, described super dispersion agent is a kind of polymer wetting dispersing agent.
6. the mutually goth black car refinishing paint of indigo plant as claimed in claim 1 is characterized in that, described acrylic resin is a kind of hydroxy acryl acid resin.
7. the preparation method of the mutually goth black car refinishing paint of indigo plant is characterized in that, comprises the steps:
1) raw material of the following weight part of preparation: 74.29 parts～78.29 parts of acrylic resins, 2.40 parts～2.60 parts in high-carbon black pigment powder, 1.90 parts～2.10 parts of super dispersion agents, 0.95 part～1.05 parts of multiplying agent, 0.07 part～0.09 part of high colouring substance, 0.45 part～0.55 part of nano titanium oxide, 16.63 parts～18.63 parts of mixed solvents, described high colouring substance are that German BASF AG model is the product of Neozapon Black X51;
2) above-mentioned raw materials is stirred;
3) raw material after will stirring grinds;
4) raw material after will grinding carries out secondary stirring.
8. the preparation method of the mutually goth black car refinishing paint of indigo plant as claimed in claim 7 is characterized in that step 2) in, raw material drops into and disperses to stir under 1100～1300 rev/mins rotating speed 25 minutes～40 minutes with high speed dispersor in the cylinder.
9. the preparation method of the mutually goth black car refinishing paint of indigo plant as claimed in claim 7 is characterized in that, in the step 4), raw material drops into and disperses to stir under 600～800 rev/mins rotating speed 25 minutes～40 minutes with high speed dispersor in the cylinder.
10. the preparation method of the mutually goth black car refinishing paint of indigo plant as claimed in claim 7 is characterized in that, in the step 3), raw material is ground with sand mill, until fineness≤5 μ m.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103497606B (en) * | 2013-10-14 | 2015-03-04 | 湖南湘江关西涂料有限公司 | Mark eliminating agent for repairing automobile body and bumper and preparation method of mark eliminating agent |
| CN104327699B (en) * | 2014-07-02 | 2016-09-28 | 郑州精益达汽车零部件有限公司 | One is exempted to grind car refinishing paint and preparation method thereof |
| CN104293046B (en) * | 2014-10-20 | 2016-08-31 | 河南三元科技化工有限公司 | A kind of goth black automobile coating of one-component blue phase and preparation method thereof |
| CN106675218A (en) * | 2016-12-20 | 2017-05-17 | 东来涂料技术（上海）有限公司 | Car refinishing paint in blue-phase ultra-black color and preparation method thereof |
| CN110079247A (en) * | 2019-04-19 | 2019-08-02 | 中山市旭森涂层材料有限公司 | A kind of pressure sensitive adhesive preparation method for Sticky Note |
| CN110845950B (en) * | 2019-11-29 | 2022-07-15 | 东来涂料技术（上海）股份有限公司 | High-shading black laser etching color-invariant coating and preparation method thereof |
| CN114921142A (en) * | 2022-05-19 | 2022-08-19 | 英德市邦士化工实业有限公司 | Low-cost black automobile coating and preparation method thereof |
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| CN1401715A (en) * | 2002-09-18 | 2003-03-12 | 中国重型汽车集团有限公司 | Acrylic resin paint for priming paint and top lacquer |
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