CN102329530B - Method for preparing aluminum paste for printing ink and aluminum paste prepared by using method - Google Patents
Method for preparing aluminum paste for printing ink and aluminum paste prepared by using method Download PDFInfo
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- CN102329530B CN102329530B CN201110227501.XA CN201110227501A CN102329530B CN 102329530 B CN102329530 B CN 102329530B CN 201110227501 A CN201110227501 A CN 201110227501A CN 102329530 B CN102329530 B CN 102329530B
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 161
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007639 printing Methods 0.000 title abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000000498 ball milling Methods 0.000 claims abstract description 42
- 239000003960 organic solvent Substances 0.000 claims abstract description 32
- 239000000314 lubricant Substances 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 238000012216 screening Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000004411 aluminium Substances 0.000 claims description 99
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 38
- 239000000843 powder Substances 0.000 claims description 31
- 238000007599 discharging Methods 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 12
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 9
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 9
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 9
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000005642 Oleic acid Substances 0.000 claims description 9
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 9
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 9
- 235000021355 Stearic acid Nutrition 0.000 claims description 8
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 8
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 8
- 239000008117 stearic acid Substances 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 6
- 238000003701 mechanical milling Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 abstract description 3
- 238000007865 diluting Methods 0.000 abstract description 2
- 229910021485 fumed silica Inorganic materials 0.000 abstract 2
- 239000002245 particle Substances 0.000 description 27
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 21
- 239000007787 solid Substances 0.000 description 8
- 238000000889 atomisation Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 230000001680 brushing effect Effects 0.000 description 4
- 238000013467 fragmentation Methods 0.000 description 4
- 238000006062 fragmentation reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005282 brightening Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical compound CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 240000000591 Strychnos spinosa Species 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229960004232 linoleic acid Drugs 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000010077 mastication Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- -1 through ball milling Substances 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention provides a method for preparing an aluminum paste for printing ink and an aluminum paste prepared by using the method, wherein the method comprises the following steps of: adding an organic solvent, a lubricant and powdered aluminum, then carrying out first-stage ball-milling on the obtained mixture; adding fumed silica into the mixture subjected to first-stage ball-milling, then, carrying out second-stage ball-milling on the obtained object; and sequentially carrying out screening, filtering and diluting on the obtained product subjected to second-stage ball-milling so as to obtain an aluminum paste, wherein a mill medium for ball-milling is an agate ball with a diameter of 2-3 mm, the addition amount of the powdered aluminum is 15-25 parts by weight, the addition amount of the organic solvent is 25-35 parts by weight, and the addition amount of the fumed silica is 0.05-0.2 part by weight. The method provided by the invention can effectively enhance the whiteness of a prepared aluminum paste, and a surface printed by using printing ink made of the aluminum paste is bright, fine and smooth, and rapid and thorough in solvent volatilization.
Description
Technical field
The special-purpose aluminium paste technical field of manufacture ink the present invention relates to, the preparation method in particular to a kind of ink with aluminium paste, special, also relate to a kind of aluminium paste according to said method making.
Background technology
Ink often be take atomization ball aluminum powder with aluminium paste and as raw material, through ball milling, ball aluminum powder is made to flake aluminum and obtain, to improve the whiteness of obtained aluminium paste.In prior art, for disperseing aluminium powder to grind and evenly often aluminium powder be dissolved in organic solvent, if the too high not volatile film forming properties that can affect ink of selected organic solvent flash-point.Yet aluminium powder is insoluble in again the organic solvent that flash-point is lower, bad dispersibility, reduces planarization and the exquisiteness on ink printing surface therein.
For improving conventional ball milling in the whiteness of aluminium paste and brightness prior art, obtain the aluminium paste of aluminium flake thinner thickness.For reducing aluminium flake thickness, common method is for extending Ball-milling Time.Although this method can reduce the thickness of aluminium flake to a certain extent, but still cannot make aluminium flake thickness reach the requirement in application, and this method also can make aluminium flake because of unbalance stress fragmentation.Aluminium flake after fragmentation, because area is too small, is dissolved in gap, and ball-milling medium cannot be to its application of force, thereby in gained aluminium paste, the thickness of aluminium flake, compared with thick and particle diameter is less, makes the whiteness of aluminium paste and brightness lower.
Summary of the invention
The present invention aims to provide preparation method and the aluminium paste thereof of aluminium paste for a kind of ink, and to solve, the obtained aluminium paste whiteness of prior art is low, print surface film forming properties is poor, planarization and the poor problem of exquisiteness.
To achieve these goals, according to an aspect of the present invention, provide the preparation method of a kind of ink with aluminium paste, method comprises the following steps: add organic solvent, lubricant and D
50be the aluminium powder of 3～11 μ m, carry out first stage ball milling and obtain mixture; In mixture, add aerosil, carry out subordinate phase ball milling, discharging; Through screening with after filtering, dilute, make aluminium paste; Wherein, in first stage and subordinate phase ball milling, grinding medium used is the agate ball of diameter 2～3mm, and the add-on of aluminium powder is 15～25 weight parts, and the add-on of organic solvent is 25～35 weight parts, and the add-on of aerosil is 0.05～0.2 weight part.
Further, aerosil adds for 1～2 hour before described discharging.
Further, the flash-point of organic solvent is 15～30 ℃.
Further, aerosil add-on is 0.09～0.12 weight part.
Further, lubricant add-on is 0.6～1.2 weight part.
Further, lubricant is comprised of the oleic acid of 0.2～0.4 weight part and the stearic acid of 0.4～0.8 weight part.
Further, in mechanical milling process, control ball mill outside wall temperature lower than 50 ℃.
According to another aspect of the present invention, provide a kind of ink aluminium paste, aluminium paste is made as stated above by aluminium powder and aerosil.
Technique effect of the present invention is:
The manufacture ink aluminium paste method that provides of invention, can effectively improve prepared aluminium paste whiteness high, and printed surface-brightening, the exquisiteness of the ink that adopts this aluminium paste to make, smooth, solvent evaporates fast and thorough.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below the present invention is further detailed explanation.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Below with reference to also describe the present invention in detail in conjunction with the embodiments.
In the present invention, aerosil had both been protected and had been ground unlikely the breaking of aluminium flake that obtain early stage, therefore can extend the time of ball milling, to reduce its thickness, can also improve the dispersiveness of aluminium flake in gained aluminium paste.Method provided by the invention has improved the whiteness of prepared aluminium paste, obtained ink printing surface-brightening, exquisiteness, smooth.
Method provided by the invention comprises the following steps:
(1) add organic solvent, lubricant and aluminium powder, ball milling;
(2) add aerosil ball milling, discharging;
(3) after screening, filtration and dilution, make aluminium paste.
Indication aluminium powder is D herein
50it is the atomization ball aluminum powder of 3～11 μ m.Ball aluminum powder is being ground to form in the process of flake aluminum, aluminium powder temperature raises, and the specific surface area of single aluminum particle is large, and the chemical property of aluminium element is active, now exposed surface, very easily generates with airborne oxygen reaction the aluminum oxide that whiteness is lower again.Thereby aluminium powder need be dissolved in to organic solvent and make aluminium powder and air completely isolated, avoid the generation of aluminum oxide.The mechanical milling process of this method is 30～40 hours.Due to friction, ball mill shell temperature also increases, and for preventing the generation of aluminum oxide, preferably, also needs to control the temperature of ball mill body surface during ball milling, makes it lower than 50 ℃, and can also prevent that solvent from volatilizing in a large number affects Working environment.
Aerosil herein refers to that particle diameter is nano level, fluffy SiO 2 powder, and this Specific Surface Area Measurement is 200m
2/ g also has wetting ability.Because nanometer grade silica particle diameter is little, specific surface area large, surface adsorption ability is strong, surface can be large, thereby in ink manufacturing processed, be often used as dispersion agent.The wetting ability that nano silicon has makes its one end also can get close to the aluminium powder as inorganics, thereby adhere to the surface that is wrapped in aluminium flake, make can tightly not stick together between aluminium flake, improved the dispersiveness of aluminium flake in aluminium paste, improve the smooth sophistication of print surface.After the silicon-dioxide that is attached to aluminium flake surface is separated aluminium flake, each aluminium flake is dispersed in organic solvent with independent individuality, prevents aluminium flake bonding and the mutual accumulation pressure that produces crushes aluminium flake.Protected the integrity of aluminium flake, the area that improves aluminium flake in obtained aluminium paste has reduced the thickness of flake aluminum, thereby has improved the whiteness of aluminium paste.
For convenience of describing, now mechanical milling process be take and added aerosil as dividing point, be divided into artificially early stage and later stage.By the ball milling in early stage; though ball aluminum powder particle has had sheet structure; but the thickness of this sheet structure is thicker; the whiteness of aluminium paste does not also reach requirement; if just extend simply Ball-milling Time; not only can not be by the thickness reduction of flake aluminum particle, and established flake aluminum particle also can be because over-mastication is broken into the flake aluminum that area is less.In addition, early stage, selected ball-milling medium played a role mainly for ball aluminum powder, and flake aluminum particle diameter after fragmentation is too small, and ball-milling medium cannot be with platy shaped particle Surface Contact further to have reduced grain thickness.If thereby do not add aerosil, the whiteness of obtained aluminium paste also cannot improve further.
Preferably, before ball milling discharging, in 1～2 hour, add aerosil.Now add after aerosil, aerosil is coated to established flake aluminum surface, because aerosil used is nano level, has wetting ability, thereby can get involved between organic solvent, lubricant and aluminium powder, directly contacts with flake aluminum.And if aerosil adds too early, first aerosil is coated on aluminium powder surface, after ball milling, the spherical of aerosil worn down gradually, and after aluminium flake is shaped, the aerosil being worn down declines to the coated ability of aluminium flake, thereby 1～2h adds aerosil effect optimum before discharging.
The aluminum particle particle diameter being coated by aerosil increases, and forms subsphaeroidally, continues afterwards ball milling, and the abrasive power of ball-milling medium acts on this subsphaeroidal particle, by surperficial silica dioxide granule, aluminum particle is further ground.Because aluminium powder has been sheet, the area of two end surfaces of flake aluminum is larger, the silica dioxide granule quantity of adhering on it is more, and its both sides area is less, the silica dioxide granule comparatively small amt adhering to, during ball milling, stressed less be polished less in flake aluminum both sides, both ends of the surface are stressed larger, thereby can, in the situation that guaranteeing that aluminium powder area is constant, reduce aluminium powder thickness.
The aerosil that the ball milling later stage adds by after the ball milling of 1～2 hour can fully sneak in aluminium paste, performance dissemination.Aluminium powder in aluminium paste is uniformly dispersed, makes the smooth exquisiteness of obtained ink printing surface-brightening.
In an embodiment provided by the invention, aluminium powder add-on is 15～25 weight parts, and organic solvent add-on is 25～35 weight parts, and lubricant add-on is 0.6～1.2 weight part, and aerosil add-on is 0.05～0.2 weight part.Preferably, aerosil add-on is 0.09～0.12 weight part.Now aerosil is optimum to the dispersion of aluminium paste, protection effect.
Especially, it should be noted that, in aluminium paste provided by the invention, add aerosil amount according to added organic solvent, determine, and that institute adds the amount of organic solvent is definite according to the addition of aluminium powder.The weight ratio relation that the weight part of organic solvent, aerosil and the aluminium powder that only need satisfied mention herein reflects, can realize object of the present invention.As aluminium powder: organic solvent: aerosil weight ratio is 15～25: 25～35: 0.05～0.2.In this ratio mixing energy, guarantee that aerosil is complete to coated aluminum powder.In this proportional range, add organic solvent can prevent too much organic solvent diluting aerosil, and affect it to coated aluminum powder and grinding; When very few, organic solvent cannot fully dissolve aluminium powder, causes caking, grinds insufficient.The weight part that needs only add three meets this ratio and all can realize object of the present invention.The parts by weight of concrete each material adding are not limited to listed herein.
Preferably, in the present invention, the flash-point of organic solvent used is 15～30 ℃, and within the scope of this, organic solvent is more volatile, the amount remaining in ink is less, even if having residually, after ink brushing, also can at room temperature volatilize fast complete, make ink institute film forming smooth, tasteless, strong adhesion, meanwhile, the organic solvent within the scope of this flash-point is also safer.
Further, organic solvent can be dimethylbenzene, o-Xylol, m-xylene, p-Xylol, ethylbenzene etc., is preferably dimethylbenzene.Dimethylbenzene flash-point is low to moderate 27.2 ℃～46 ℃, makes it just volatilizable complete at normal temperatures, makes the print surface of obtained ink dry very fast.Reduce the detrimentally affect of residual organic solvent to ink film forming properties.After the surface film oxide of aluminium is polished and removes, organic solvent can be rapidly by the aluminium surface coverage of just exposing, and prevents air and has highly chemically active aluminium Surface Contact and react.The dissolving aluminium powder ability of dimethylbenzene is strong, uses safety.
Lubricant can be to be prepared in aluminium paste conventionally as oleic acid, stearic acid, linolic acid etc., and wherein lubricant add-on is 0.6～1.2 weight part.Preferably, lubricant is comprised of 0.2～0.4 weight part oleic acid and 0.4～0.8 weight part stearic acid.
Institute adds lubricant together with organic solvent, aluminum particle to be wrapped, wherein oleic acid and the stearic acid as lubricant can reduce the friction between ball-milling medium and aluminum particle, in ball milling, play lubrication ball grinding media and single aluminum particle, the power of avoiding ball-milling medium to produce single aluminum particle directly acts on particle, make particle unbalance stress and fragmentation, and aluminium flake surface is ground not only smooth but also smoothly.In the present invention, oleic acid and stearic add-on phase p-Xylol are low, thereby can not produce detrimentally affect to finally making the rate of drying of ink.
Ball milling grinding medium used is the agate ball of diameter 2～3mm.During ball milling, frictional force produces by the deadweight of ball-milling medium, agate ball light weight used and appearance is solid, the power that grinding medium applies aluminium powder individual particle during ball milling is like this less, carrying out with this understanding ball milling can not grind to form spheroidal particle sheet structure and the alumina layer of particle surface can be removed again, expose the silvery white of aluminium itself, thereby increased the whiteness of aluminium paste.If it is only the aluminum particle of 1～3um that agate ball particle diameter used not within the scope of this, cannot guarantee to be ground to particle diameter.
Further, the invention provides in method, by adding organic solvent, adjust the solid content of obtained aluminium paste, so that while as required gained aluminium paste being mediated to moulding, aluminium paste has plasticity-.
Another aspect of the present invention also provides a kind of ink aluminium paste, makes as stated above.
Further, by massfraction, by 58%～62% aluminium powder, 28%～32% organic solvent, 4%～6% aerosil and 1.5%～4% lubricant, formed.
Adopt aforesaid method, ratio according to the method described above adds each material, can guarantee that each material component of obtained aluminium paste is aforementioned.
Embodiment
In following examples, each material used is commercially available and instrument and is commercially available.In following examples, aluminium powder used is atomization ball aluminum powder, D
50(50% grain diameter in aluminium powder) is that 1～3um measures the size distribution of aluminium paste by particle size analyzer.
Thickness with aluminium flake in determination of electron microscopy aluminium paste.
In following examples, obtained aluminium pigment is made to ink according to a conventional method, and on arm-tie paper brushing gained ink contrasting.Arm-tie paper is the surperficial paper that paraffin layer is set.Arm-tie after brushing is placed in respectively under microscope, observes the pattern of aluminium flake in aluminium pigment.Adopt commercially available five angle color difference meters under 15 °, 45 °, to measure the L value of aluminium pigment arm-tie.L value is for contrasting the aberration on surface to be measured.L
45 °the whiteness of reflection ink, L
15 °the brightness of reflection ink.During test, by the L of standard jig
45 °value is made as 100, L
15 °it is larger that value is made as 200, L value, illustrates that the whiteness of aluminium pigment and brightness are better.
Dry ink test is carried out in baking box, the arm-tie from brushing put into baking box to arm-tie surface film absolutely dry up to, recording this period is time of drying.
Embodiment 1
(1) get atomization ball aluminum powder 20 weight parts, dimethylbenzene 30 weight parts, oleic acid 0.3 weight part, stearic acid 0.5 weight part, adds and is equipped with in the horizontal ball mill of agate ball that diameter is 3mm, under 35 revs/min, ball milling 35 hours, and the temperature of controlling ball mill outer wall is lower than 50 ℃.
(2) 1h adds aerosil 0.1 weight part before discharging, obtains afterwards solid content and be 72% aluminium paste after discharging, screening, press filtration.
(3) solid content that adds the dimethylbenzene of 4.8 weight parts to mix aluminium paste reduces to 62%, mediates and obtains aluminium paste 1.
Embodiment 2
(1) get atomization ball aluminum powder 25 weight parts, dimethylbenzene 36 weight parts, oleic acid 0.3 weight part, stearic acid 0.6 weight part, add and be equipped with in the horizontal ball mill of agate ball that diameter is 2mm, 35 revs/min of lower ball millings 34 hours, and the temperature of controlling ball mill outer wall was lower than 50 ℃.
(2) 1h adds aerosil 0.19 weight part before discharging, obtains afterwards solid content and be 70% aluminium paste after discharging, screening, press filtration.
(3) solid content that adds the dimethylbenzene of 6 weight parts to mix aluminium paste reduces to 59%, mediates and obtains aluminium paste 2.
Embodiment 3
(1) get atomization ball aluminum powder 15 weight parts, dimethylbenzene 25 weight parts, oleic acid 0.3 weight part, stearic acid 0.6 weight part, add and be equipped with in the horizontal ball mill of agate ball that diameter is 2mm, 35 revs/min of lower ball millings 34 hours, and the temperature of controlling ball mill outer wall was lower than 50 ℃.
(2) grind 1 hour after adding aerosil 0.07 weight part, after discharging, screening, press filtration, obtain afterwards solid content and be 70% aluminium paste.
(3) solid content that adds the dimethylbenzene of 6 weight parts to mix aluminium paste reduces to 59%, mediates and obtains aluminium paste 3.
Comparative example
In this comparative example, preparation condition is identical with embodiment 1, and difference is only not add that aerosil, ball-milling medium are that diameter is the agate ball of 2mm, obtains aluminium paste 4.
Embodiment 1～3 and comparative example gained slightly dodge aluminium pigment to carry out every detected result and lists in table 1.
Table 1 embodiment 1～3 and comparative example detected result table
From table 1, the aluminium paste particle diameter of preparing by method provided by the invention is little and thin, and thickness is only 0.5～1.0 μ m, and its whiteness, brightness are all high compared with comparative example, shows smoothly, makes it have preferably color travel.And at 80 ℃ time of drying can be as short as 155s.The L of embodiment 3 obtained films wherein
15value is that 102 its glossiness of the highest explanation are the highest, the L of the aluminium pigment making in embodiment 1
45be up to 66, illustrate that its whiteness is best.And the L of the obtained aluminium paste of comparative example
15and L
45compared with embodiment, be all low, and profile pattern is poor, thickness is 0.8～2.0 μ m, and over-all properties is lower than the aluminium paste making by the method for the invention provides.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a preparation method for aluminium paste for ink, is characterized in that, said method comprising the steps of:
Add organic solvent, lubricant and D
50be the aluminium powder of 3～11 μ m, carry out first stage ball milling and obtain mixture;
In described mixture, add aerosil, carry out subordinate phase ball milling, discharging, described aerosil adds for 1～2 hour before described discharging;
Through screening with after filtering, dilute, make aluminium paste;
Wherein, in described first stage and subordinate phase ball milling, grinding medium used is the agate ball of diameter 2～3mm, mechanical milling process is 30～40 hours, the add-on of described aluminium powder is 15～25 weight parts, the add-on of described organic solvent is 25～35 weight parts, and the add-on of described aerosil is 0.05～0.2 weight part.
2. preparation method according to claim 1, is characterized in that, the flash-point of described organic solvent is 15～30 ℃.
3. preparation method according to claim 2, is characterized in that, described aerosil add-on is 0.09～0.12 weight part.
4. preparation method according to claim 3, is characterized in that, described lubricant add-on is 0.6～1.2 weight part.
5. preparation method according to claim 4, is characterized in that, described lubricant is comprised of the oleic acid of 0.2～0.4 weight part and the stearic acid of 0.4～0.8 weight part.
6. preparation method according to claim 5, is characterized in that, controls ball mill outside wall temperature lower than 50 ℃ in described mechanical milling process.
7. an ink aluminium paste, is characterized in that, by preparation method described in any one in claim 1～6, makes.
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| CN102634253B (en) * | 2012-04-12 | 2013-10-09 | 中山市天键金属材料有限公司 | Method for preparing laser aluminum paste |
| CN103773088B (en) * | 2012-08-07 | 2016-01-13 | 江苏伊特复合新材料有限公司 | The preparation method of the silicon dioxide coating type water aluminum-silver slurry of safety |
| CN102838888A (en) * | 2012-08-27 | 2012-12-26 | 淮北五星铝业有限公司 | Super mercerization argentalium silver paste preparation method |
| CN103613960B (en) * | 2013-11-28 | 2015-04-29 | 嘉兴市华源铝制品有限公司 | Preparation method of leafing aluminum paste |
| CN109694591A (en) * | 2019-01-03 | 2019-04-30 | 长沙族兴新材料股份有限公司 | It is modified aluminium pigment and preparation method thereof and the coating comprising it |
| CN110396307A (en) * | 2019-06-20 | 2019-11-01 | 山东盈科新型材料科技有限公司 | A kind of aluminum paste pigment preparation method |
| CN112961469B (en) * | 2021-04-08 | 2023-03-31 | 厦门稀土材料研究所 | Epoxy resin-based high-thermal-conductivity insulating material and preparation method thereof |
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| CN101948639A (en) * | 2010-08-31 | 2011-01-19 | 长沙族兴金属颜料有限公司 | Method for preparing high floating value floating aluminum silver paste |
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| CN101735671A (en) * | 2009-12-28 | 2010-06-16 | 长沙族兴金属颜料有限公司 | Manufacturing method of strong twinkling aluminium pastes |
| CN101948639A (en) * | 2010-08-31 | 2011-01-19 | 长沙族兴金属颜料有限公司 | Method for preparing high floating value floating aluminum silver paste |
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Denomination of invention: Preparation method of aluminum paste for ink and aluminum paste prepared from it Effective date of registration: 20210918 Granted publication date: 20140409 Pledgee: Ningxiang sub branch of Bank of Changsha Co.,Ltd. Pledgor: ZUXING NEW MATERIAL Co.,Ltd. Registration number: Y2021980009561 |
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Denomination of invention: Preparation method of aluminum slurry for ink and aluminum slurry produced from it Granted publication date: 20140409 Pledgee: Ningxiang sub branch of Bank of Changsha Co.,Ltd. Pledgor: ZUXING NEW MATERIAL CO.,LTD. Registration number: Y2024980013898 |