CN102372933A - Preparation method of environmentally friendly non-floating aluminum paste pigment - Google Patents
Preparation method of environmentally friendly non-floating aluminum paste pigment Download PDFInfo
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- CN102372933A CN102372933A CN2010102502729A CN201010250272A CN102372933A CN 102372933 A CN102372933 A CN 102372933A CN 2010102502729 A CN2010102502729 A CN 2010102502729A CN 201010250272 A CN201010250272 A CN 201010250272A CN 102372933 A CN102372933 A CN 102372933A
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Abstract
The invention which belongs to the field of aluminum paste pigments discloses a preparation method of an environmentally friendly non-floating aluminum paste pigment. Non-floating aluminum paste pigments prepared with the prior art have a defect that the pigments which contain heavy metal substances and polycyclic aromatic hydrocarbons are harmful to human bodies. The preparation method of the invention comprises the following steps: 1, mixing spherical aluminum powder in a solvent according to a weigh ratio of 1:1, placing them in a bowl mill, grinding to prepare platy grains with the rotating speed of the bowl mill of 37rpm and the temperature in the bowl mill of 50-55DEG C; 2, screening: placing the platy grains in a screener to obtain pigment flakes with different grain sizes; 3, press-filtering: placing the pigment flakes in a press filter, and separating out the solvent to obtain a solid filter cake; and 4, adding a solvent and a cosolvent to the solid filter cake, placing them in a kneader, and kneading to prepare the aluminum paste pigment containing 65 wt% of the solid and 35wt% of the solvent. The environmentally friendly non-floating aluminum paste pigment has the advantages of no harm to the human bodies because of the safe use, wide application because the aluminum paste pigment can be used by cooperating with various base materials, durability and good protection effect of a film of the aluminum paste pigment, simple production technology, and low cost.
Description
Technical field
The invention belongs to aluminium-silver slurry pigment, the preparation method of the non-floating type aluminium-silver slurry of specifically a kind of environmental protection pigment.
Background technology
Aluminium-silver slurry pigment is important in the Modern Industry Products, indispensable metallic pigment, and staple is snowflake shape aluminum particulate and solvent, is paste.Be characterized in that the aluminium flake smooth surface is smooth, size-grade distribution is concentrated, and regular shape has excellent luminous reflectanc and metalluster, both can singlely in coating, printing ink, plastics, use, and produces the metal effect of silver color; Also can cooperate other pigment to use, produce the metal effect of different colours such as gold.Aluminium-silver slurry pigment can evenly be arranged in parallel to reach between 12 layers, sheet and the sheet in general protective coating and sealed by base-material again, and coating structure maskable ambient atmos, moisture content, light etc. are to the erosion of ground, thereby has competent provide protection.Paint film has tangible effect, and decorative effect is magnificent attractive in appearance.Be mainly used in car paint, light current plastic paint, metallic paint, marine finish, heat resisting coating, roof with coating etc.
Aluminium-silver slurry pigment is divided into two kinds on floating type and non-floating type.Float in the type aluminium-silver slurry, aluminium flake aligns and forms the opaque silver color film of one deck at nearly coating surface, and this opaque character is to make floating type aluminium-silver slurry become the raw-material principal element of important function property.
Non-floating type aluminium-silver slurry is that aluminium flake evenly distributes in whole paint film abreast, can mix with multiple pigment and is applicable to multiple system, industrial coating is had the effect of uniqueness.The pigment or the dyestuff that use with non-floating type aluminium-silver slurry all must be transparent, only in this way just can reach the effect of metallic surface true to nature.Non-floating type aluminium-silver slurry is of a great variety, tinting strength from low to high, particle diameter from coarse to fine, outward appearance also has acidproof series product from white, glittering to ash, fine and smooth, can reduce the influence of poor environments such as industrial fume, acid rain to coating.Non-floating type aluminium-silver slurry can extensively adopt polarity and non-polar solvent, like aliphatics or aromatic hydrocarbons, ester class, ketone, alcoholic solvent.
The shortcoming of the non-floating type aluminium-silver slurry of prior art pigment is: the heavy metal substance that contains in the pigment, polycyclic aromatic hydrocarbons material produce injury effect to people's health; Because the aluminium-silver slurry pigment applications is extensive, so people's physical effects is extensively existed, this is a long-term insoluble technical problem.
A kind of working method is simple, cost is low so invent, and is very significant to the preparation method of human body safety, the harmless non-floating type aluminium-silver slurry of environmental protection pigment.
Summary of the invention
The purpose of this invention is to provide that a kind of working method is simple, cost is low, to the preparation method of human body safety, the harmless non-floating type aluminium-silver slurry of environmental protection pigment.
The objective of the invention is to realize like this:
The preparation method of the non-floating type aluminium-silver slurry of environmental protection pigment, step is following:
(1) ball milling: the ball-type aluminium powder is mixed in weight ratio at 1: 1 solvent is mid-goes into ball mill and grind, drum's speed of rotation PM 37 changes, and built-in temperature 50-55 °, processes platy shaped particle; Pigment sheet particle suspension is precipitated through pipe-line transportation to storage tank with vacuum pressure;
(2) screening: step (1) product is inserted sieve apparatus, obtain the different-grain diameter lamellar pigment; Pigment suspension body and function vacuum pressure after the screening is precipitated through pipe-line transportation to storage tank;
(3) press filtration: step (2) product is inserted the pressure filter press filtration, separate solvent, get solid filter cake;
(4) with step (3) product, adding solvent and auxiliary agent are inserted kneader and are mediated, and make to contain solid weight part 65%, the aluminium-silver slurry pigment product of weight of solvent part 35%.
The weight ratio ingredient of step (1) and the said solvent of step (4) is:
30 parts of N-BUTYL ACETATEs; 20 parts of methylethylketones; 20 parts of MIBKs; 30 parts of ethanol.
Oblique 45 ° of diversion trenchs are arranged on the described ball mill inwall of step (1).
The described sieve apparatus of step (2), sieve number are 100 orders, 200 orders, 325 orders, 400 orders, 500 orders.
The described auxiliary agent weight ratio ingredient of step (4) is:
20 parts of CALCIUM ACRYLATEs; 20 parts of alkyd; 20 parts of urethane.
Main points of the present invention are; The employed solvent of each step, auxiliary agent are human body safety, harmless material; Effectively reduced heavy metal substance, polycyclic aromatic hydrocarbons material, the REACH of European Union rules first, the content of second batch of high attention rate material; Avoided aluminium-silver slurry to be applied in behind the finished product surface, reached requirements of green environmental protection the injury of human body.
Each step in the inventive method is all adopted an effective measure simultaneously, has guaranteed that the aluminium-silver slurry product reaches the safety requirements to human body.These measures comprise:
1. aluminium powder, solvent, ball-milling additive, steel ball before adding ball mill, must detect through environmental protection project, strict control harmful substance contents.
2. environmental protection project is carried out in the sampling of the mixture behind the ball milling and detect the follow-up control harmful substance contents.
3. the finished product mixture sampling after will mediating is carried out environmental protection project and is detected, and accurately measures the product harmful substance contents.
In the practical implementation of the present invention, note following item:
Ball milling: the HALL ball-milling technology, be mixed in the solvent ball-type aluminium powder and the relevant auxiliary agent grinding of interpolation, be formed into platy shaped particle.Steel ball in the ball mill must satisfy certain condition: a certain size ratio, unlike material, Different Weight are arranged.Oblique 45 ° of diversion trenchs should be arranged on the ball mill inwall, and the steel ball whereabouts space enough owing to the diversion trench lifting produces produces enough overdraft when guaranteeing the ball mill rotation.When ball mill rotated, room temps should be controlled between 50-55 ° in the machine, and the outside wall temperature observed value should be between 40-50 °.The debugging drum's speed of rotation carries out real-time monitoring to 37 commentaries on classics/PM according to factors such as voltages.Ball mill work should precipitate pigment suspension body and function vacuum pressure after accomplishing through pipe-line transportation to storage tank.
Screening: the pigment suspension body after will grinding through screening, obtains different-grain diameter pigment platy shaped particle again.Sieve apparatus uses the screen cloth of different meshes, like 100 orders, 200 orders, 325 orders, 400 orders, 500 orders.In the sieve apparatus working process, answer accurate recording screening beginning and ending time and screening number of times.After sieve apparatus work is accomplished, should the pigment suspension body and function vacuum pressure after the screening be precipitated through pipe-line transportation to storage tank.
Press filtration: with the press filtration of pigment suspension body and function pressure filter, its solvent is separated with aluminium flake, obtain the filter cake of higher-solid.In the pressure filter working process, should observe and detect the characteristic such as color and aluminium flake content of solvent oil after the press filtration.
Sieve apparatus and pressure filter work should be cleaned screen cloth and filter screen after accomplishing, and avoid aluminium flake residual.
Mediate: in the aluminium cake, add specific solvent and special auxiliary agent, finally forming solid is 65%, and solvent is 35% final finished.In the kneader working process, answer accurate recording to mediate time, amount of solvent, additive dosage.
Aluminium powder, solvent, ball-milling additive, steel ball before adding ball mill, must detect through environmental protection project, strict control harmful substance contents.
Environmental protection project is carried out in the sampling of mixture behind the ball milling detect the follow-up control harmful substance contents.
Environmental protection project is carried out in finished product mixture sampling after mediating detect, confirm the finished product harmful substance contents.
The preparation method of the non-floating type aluminium-silver slurry of environmental protection of the present invention, technical process is: ball milling-screening-press filtration-spinning-kneading.
Advantage of the present invention is:
1, safe in utilization, to human non-toxic evil, injury effect.
2, can be used with multiple base-material, be widely used.
3, film durablely, protect effective.
4, production technique is simple, and cost is cheap.
Embodiment
Through embodiment the present invention is further specified below.
Embodiment 1:
The preparation method of the non-floating type aluminium-silver slurry of environmental protection pigment, step is following:
1, preparation solvent: get 3 kilograms of N-BUTYL ACETATEs; 2 kilograms of methylethylketones; 2 kilograms of MIBKs; 3 kilograms of ethanol mix.
2, ball milling: get 10 kilograms of ball-type aluminium powders, be mixed in 10 kilograms of solvent, slowly stir 20min, to uniform mixing.Insert ball mill grinding, drum's speed of rotation PM 37 changes, and built-in temperature 50-55 °, 40-45 ° of casing temperature processed platy shaped particle; Pigment sheet particle suspension is precipitated through pipe-line transportation to storage tank with vacuum pressure.
3, screening: the ball milling after product is inserted sieve apparatus, and sieve number is 100 orders, gets the particle diameter lamellar pigment; Pigment suspension body and function vacuum pressure after the screening is precipitated through pipe-line transportation to storage tank.
4, press filtration: above-mentioned product is inserted the pressure filter press filtration, separate solvent, get solid filter cake;
5, formulation aid: get N-BUTYL ACETATE 30 grams; Methylethylketone 20 grams; MIBK 20 grams; Ethanol 30 grams mix.
6, with solid filter cake, adding solvent and auxiliary agent are inserted kneader and are mediated, and make to contain solid weight part 65%, the aluminium-silver slurry pigment product of weight of solvent part 35%.
Get 4 kilograms of the above-mentioned aluminium-silver slurry pigment product that makes, add in 96 kilograms in the red priming paint, mix, be used for car paint.
Embodiment 2:
The preparation method of the non-floating type aluminium-silver slurry of environmental protection pigment, step is following:
1, preparation solvent: get 3 kilograms of N-BUTYL ACETATEs; 2 kilograms of methylethylketones; 2 kilograms of MIBKs; 3 kilograms of ethanol mix.
2, ball milling: get 8 kilograms of ball-type aluminium powders, be mixed in 10 kilograms of solvent, slowly stir 15min, to uniform mixing.Insert ball mill grinding, drum's speed of rotation PM 37 changes, and built-in temperature 50-55 °, 40-45 ° of casing temperature processed platy shaped particle; Pigment sheet particle suspension is precipitated through pipe-line transportation to storage tank with vacuum pressure.
3, screening: the ball milling after product is inserted sieve apparatus, and sieve number is 400 orders, gets the particle diameter lamellar pigment; Pigment suspension body and function vacuum pressure after the screening is precipitated through pipe-line transportation to storage tank.
4, press filtration: above-mentioned product is inserted the pressure filter press filtration, separate solvent, get solid filter cake;
5, formulation aid: get N-BUTYL ACETATE 30 grams; Methylethylketone 20 grams; MIBK 20 grams; Ethanol 30 grams mix.
6, with solid filter cake, adding solvent and auxiliary agent are inserted kneader and are mediated, and make to contain solid weight part 65%, the aluminium-silver slurry pigment product of weight of solvent part 35%.
Get 8 kilograms of the above-mentioned aluminium-silver slurry pigment product that makes, add in 92 kilograms of the fine silver color bottom paints, mix, be used for metallic substance coating.
Embodiment 3:
The preparation method of the non-floating type aluminium-silver slurry of environmental protection pigment, step is following:
1, preparation solvent: get 3 kilograms of N-BUTYL ACETATEs; 2 kilograms of methylethylketones; 2 kilograms of MIBKs; 3 kilograms of ethanol mix.
2, ball milling: get 6 kilograms of ball-type aluminium powders, be mixed in 10 kilograms of solvent, slowly stir 10min, to uniform mixing.Insert ball mill grinding, drum's speed of rotation PM 37 changes, and built-in temperature 50-55 °, 40-45 ° of casing temperature processed platy shaped particle; Pigment sheet particle suspension is precipitated through pipe-line transportation to storage tank with vacuum pressure.
3, screening: the ball milling after product is inserted sieve apparatus, and sieve number is 500 orders, gets the particle diameter lamellar pigment; Pigment suspension body and function vacuum pressure after the screening is precipitated through pipe-line transportation to storage tank.
4, press filtration: above-mentioned product is inserted the pressure filter press filtration, separate solvent, get solid filter cake;
5, formulation aid: get N-BUTYL ACETATE 30 grams; Methylethylketone 20 grams; MIBK 20 grams; Ethanol 30 grams mix.
6, with solid filter cake, adding solvent and auxiliary agent are inserted kneader and are mediated, and make to contain solid weight part 65%, the aluminium-silver slurry pigment product of weight of solvent part 35%.
Get 10 kilograms of the above-mentioned aluminium-silver slurry pigment product that makes, add in 90 kilograms of the grey color bottom paints, mix, be used for the oil tank protective system.
Embodiment 4:
The aluminium-silver slurry pigment product that embodiment 1 makes, measured result is following:
Measured value improved the back measured value before ROHS method European Union standard was improved
Plumbous 100ppm 300ppm＜2ppm
Mercury 1000ppm 5000ppm＜2ppm
Cadmium 1000ppm 2800ppm＜2ppm
Sexavalent chrome 1000ppm 4600ppm＜2ppm
PBBs 1000ppm 4200ppm＜5ppm
Polybromodiphenyl ether 1000ppm 6200ppm＜5ppm
Embodiment 5:
Embodiment 2 product measured results are following;
Measured value improved the back measured value before PAHS rules European Union standard was improved
Naphthalene 1ppm 300ppm＜1ppm
16 summations of benzo (a) anthracene＜10ppm 1600ppm＜10ppm
Cobalt chloride concentration＜0.01% concentration＞0.1% concentration＜0.005%
Embodiment 6:
Embodiment 3 product measured results are following;
Measured value improved the back measured value before SVHC material European Union standard was improved
Red chrome (chrome yellow) concentration＜0.01% concentration＞0.1% concentration＜0.005%
The foregoing description is a preference of the present invention, is not used for limiting the present invention, and all within principle of the present invention, any modification and the variation made are all within protection scope of the present invention.
Claims (5)
1. the preparation method of the non-floating type aluminium-silver slurry of an environmental protection pigment, step is following:
(1) ball milling: the ball-type aluminium powder is mixed in weight ratio at 1: 1 solvent is mid-goes into ball mill and grind, drum's speed of rotation PM 37 changes, and built-in temperature 50-55 °, processes platy shaped particle; Pigment sheet particle suspension is precipitated through pipe-line transportation to storage tank with vacuum pressure;
(2) screening: step (1) product is inserted sieve apparatus, obtain the different-grain diameter lamellar pigment; Pigment suspension body and function vacuum pressure after the screening is precipitated through pipe-line transportation to storage tank;
(3) press filtration: step (2) product is inserted the pressure filter press filtration, separate solvent, get solid filter cake;
(4) with step (3) product, adding solvent and auxiliary agent are inserted kneader and are mediated, and make to contain solid weight part 65%, the aluminium-silver slurry pigment product of weight of solvent part 35%.
2. the preparation method of the non-floating type aluminium-silver slurry of environmental protection according to claim 1 pigment is characterized in that: the weight ratio ingredient of step (1) and the said solvent of step (4) is:
30 parts of N-BUTYL ACETATEs; 20 parts of methylethylketones; 20 parts of MIBKs; 30 parts of ethanol.
3. the preparation method of the non-floating type aluminium-silver slurry of environmental protection according to claim 1 pigment is characterized in that: oblique 45 ° of diversion trenchs are arranged on the described ball mill inwall of step (1).
4. the preparation method of the non-floating type aluminium-silver slurry of environmental protection according to claim 1 pigment is characterized in that: the described sieve apparatus of step (2), sieve number are 100 orders, 200 orders, 325 orders, 400 orders, 500 orders.
5. the preparation method of the non-floating type aluminium-silver slurry of environmental protection according to claim 1 pigment is characterized in that: the described auxiliary agent weight ratio ingredient of step (4) is:
20 parts of CALCIUM ACRYLATEs; 20 parts of alkyd; 20 parts of urethane.
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| CN201010250272.9A CN102372933B (en) | 2010-08-11 | 2010-08-11 | Preparation method of environmentally friendly non-floating aluminum paste pigment |
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| CN201010250272.9A CN102372933B (en) | 2010-08-11 | 2010-08-11 | Preparation method of environmentally friendly non-floating aluminum paste pigment |
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| CN102372933B CN102372933B (en) | 2014-01-15 |
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| CN102766360A (en) * | 2012-08-07 | 2012-11-07 | 江苏伊特复合新材料有限公司 | Preparation method of silica coated aqueous aluminum paste |
| CN103627220A (en) * | 2013-12-12 | 2014-03-12 | 重庆诺泰颜料有限公司 | Preparation method of environment-friendly aluminium pigment |
| CN111454593A (en) * | 2020-04-17 | 2020-07-28 | 安徽赛尔新材料科技有限公司 | Preparation method of mercerizing electroplating-grade aluminum paste |
| CN112480720A (en) * | 2020-11-26 | 2021-03-12 | 上海颜钛实业有限公司 | Preparation method of aluminum paste pigment and product prepared by preparation method |
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| CN103740143B (en) * | 2012-08-07 | 2015-08-05 | 江苏伊特复合新材料有限公司 | The preparation method of water aluminum-silver slurry |
| CN103756373B (en) * | 2012-08-07 | 2015-08-05 | 江苏伊特复合新材料有限公司 | The preparation method of easy to operate silicon dioxide coating type water aluminum-silver slurry |
| CN102766360B (en) * | 2012-08-07 | 2014-04-02 | 江苏伊特复合新材料有限公司 | Preparation method of silica coated aqueous aluminum paste |
| CN103740142A (en) * | 2012-08-07 | 2014-04-23 | 江苏伊特复合新材料有限公司 | Preparation method of high-temperature resistance silicon dioxide coated waterborne type aluminum paste |
| CN103740141A (en) * | 2012-08-07 | 2014-04-23 | 江苏伊特复合新材料有限公司 | Silicon dioxide coating waterborne aluminum paste preparation method with simple technology |
| CN103740143A (en) * | 2012-08-07 | 2014-04-23 | 江苏伊特复合新材料有限公司 | Preparation method of waterborne type aluminum paste |
| CN103740144A (en) * | 2012-08-07 | 2014-04-23 | 江苏伊特复合新材料有限公司 | Preparation method of waterborne type aluminum paste with good coating effect |
| CN102766360A (en) * | 2012-08-07 | 2012-11-07 | 江苏伊特复合新材料有限公司 | Preparation method of silica coated aqueous aluminum paste |
| CN103819948A (en) * | 2012-08-07 | 2014-05-28 | 江苏伊特复合新材料有限公司 | Hydrogen-precipitation-free aqueous aluminum paste preparation method |
| CN103819947A (en) * | 2012-08-07 | 2014-05-28 | 江苏伊特复合新材料有限公司 | Preparation method of high-insulation aqueous aluminum paste |
| CN103756373A (en) * | 2012-08-07 | 2014-04-30 | 江苏伊特复合新材料有限公司 | Conveniently operated preparation method for silicon dioxide coated waterborne type aluminum paste |
| CN103740141B (en) * | 2012-08-07 | 2015-08-05 | 江苏伊特复合新材料有限公司 | The preparation method of the simple silicon dioxide coating type water aluminum-silver slurry of technique |
| CN103740142B (en) * | 2012-08-07 | 2015-08-05 | 江苏伊特复合新材料有限公司 | The preparation method of high thermal resistance silicon dioxide coating type water aluminum-silver slurry |
| CN103740144B (en) * | 2012-08-07 | 2015-11-11 | 江苏伊特复合新材料有限公司 | The preparation method of the water aluminum-silver slurry that covered effect is good |
| CN103819947B (en) * | 2012-08-07 | 2015-08-05 | 江苏伊特复合新材料有限公司 | The preparation method of high-insulativity water aluminum-silver slurry |
| CN103819948B (en) * | 2012-08-07 | 2015-09-02 | 江苏伊特复合新材料有限公司 | The preparation method of the water aluminum-silver slurry that no hydrogen is separated out |
| CN103627220A (en) * | 2013-12-12 | 2014-03-12 | 重庆诺泰颜料有限公司 | Preparation method of environment-friendly aluminium pigment |
| CN103627220B (en) * | 2013-12-12 | 2016-02-17 | 重庆诺泰颜料有限公司 | The preparation method of environment-friendlyaluminium aluminium pigment |
| CN111454593A (en) * | 2020-04-17 | 2020-07-28 | 安徽赛尔新材料科技有限公司 | Preparation method of mercerizing electroplating-grade aluminum paste |
| CN112480720A (en) * | 2020-11-26 | 2021-03-12 | 上海颜钛实业有限公司 | Preparation method of aluminum paste pigment and product prepared by preparation method |
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| CN102372933B (en) | 2014-01-15 |
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