CN109676821A - The preparation method and strip aluminium pigment as made from it of strip aluminium pigment - Google Patents
The preparation method and strip aluminium pigment as made from it of strip aluminium pigment Download PDFInfo
- Publication number
- CN109676821A CN109676821A CN201811606357.9A CN201811606357A CN109676821A CN 109676821 A CN109676821 A CN 109676821A CN 201811606357 A CN201811606357 A CN 201811606357A CN 109676821 A CN109676821 A CN 109676821A
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- aluminium
- aluminium pigment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses a kind of preparation methods of strip aluminium pigment, include the following steps: 1) to add auxiliary agent in aluminium paste, be mediated；2) step 1) resulting material is subjected to press strip, obtains the strip-shaped product that diameter is 2~5mm；3) it will be cut off after strip-shaped product drying, obtain the strip aluminium pigment.The preparation method of strip aluminium pigment of the invention, material is formed by the way of press strip, not by shearing force when material forming, the pilot process time is short, and containing more organic solvent and auxiliary agent in material, greasy property is good, and material extrusion molding is easier, and structural damage is small, and form and aspect do not change substantially before and after product press strip.
Description
Technical field
The present invention relates to aluminium pigment technical fields, particularly, are related to a kind of preparation method of strip aluminium pigment, in addition, also
It is related to the strip aluminium pigment as made from the preparation method.
Background technique
Aluminium pigment is most widely used one of metallic effect pigments.Sheet aluminium pigment is distributed in coating, with solvent
Volatilization, aluminium pigment are laid in surface of bottom material, and numerous aluminium powder particles interlinks, and mutually fill up to be formed continuously between sized particles
Metal film, covered ground, there is protection ground effect well, aluminium pigment used is with good antiseptic property；Aluminium face
Material can reflect visible light, have argenteous metallic luster, while with the difference of angle, the intensity of the light of reflection is also different,
So aluminium pigment has good decorative effect；Aluminium pigment can also reflect infrared light and ultraviolet light, thus also have thermal insulation property
With the effect for delaying coating and rubber and ageing of plastics.Therefore, aluminium pigment is widely used in the row such as coating, ink, plastic cement
Industry.
Plasthetics is wide because having the good characteristics such as light, specific strength is high, chemical corrosion resistance is good, easy processing molding
It is general to be applied to the fields such as aerospace, automobile, household electrical appliances, building.However, plasthetics is by ultraviolet light and radiation of heat,
It is easy aging, while plasthetics does not have metallic luster.As people are higher and higher to plasthetics appearance requirement, and extend
The service life of plasthetics, aluminium pigment are applied in plastic cement industry and are increasingly praised highly.
Currently, the aluminium pigment in plastic cement industrial application mainly has powdery and two kinds of pulpous state, the aluminium powder of powdery aluminium pigment is most
In bar shaped, therefore it is called strip aluminium pigment, the molding of strip aluminium pigment is that aluminium pigment is mediated by addition auxiliary agent, powder after drying
Broken, extrusion molding, the equipment of extrusion molding is screw extruder, and screw extruder is easy in extrusion molding because of lubricity
Not enough, cause to squeeze out difficulty, and rear form and aspect difference is larger before extrusion for product, so that product form and aspect are very unstable.
Summary of the invention
The present invention provides a kind of preparation methods of strip aluminium pigment, difficult, crowded to solve existing strip aluminium pigment extrusion
The unstable technical problem of product form and aspect after out.
According to an aspect of the present invention, a kind of preparation method of strip aluminium pigment is provided, is included the following steps:
1) auxiliary agent is added in aluminium paste, is mediated；
2) step 1) resulting material is subjected to press strip, obtains the strip-shaped product that diameter is 2~5mm；
3) it will be cut off after strip-shaped product drying, obtain the strip aluminium pigment.
Further, the content of aluminium is 62~66% in the aluminium paste, and the content of organic solvent is 34~38%, aluminium paste
Partial size D50It is 5~15 μm, is above mass content.
Further, in step 1), aluminium paste: the quality proportioning of auxiliary agent is 1:0.1~0.3.
Further, the auxiliary agent is one of polyethylene wax, polypropylene wax, White Mineral Oil and dioctyl adipate.
Further, in step 1), kneading temperature is room temperature, and kneading time is 1~3 hour.
Further, in step 2), material press strip uses material pressing device, and the material pressing device includes bucket end template and hydraulic
Device, the bucket end template include the hole location of multiple 2~5mm of diameter to distribute alternately, the bucket end template with a thickness of 4~
10mm, the hydraulic device are arranged above the bucket end template, under providing uniformly for the material on the bucket end template
Pressure.
Further, in step 3), the drying carries out in drying box, and drying temperature is 120~160 DEG C, vacuum degree
< 0.094MPa, drying time are 6~8 hours.
Further, in step 3), the cutting uses and waves pelletizer or roll squeezer.
Further, the diameter of the strip aluminium pigment is 2~5mm, and length is 7~14mm, and aluminium content is 70~80%,
The above are mass contents.
According to another aspect of the present invention, a kind of strip aluminium pigment is additionally provided, above-mentioned preparation method is used to be prepared into
It arrives.
The invention has the following advantages:
The preparation method of strip aluminium pigment of the invention after mediating aluminium paste and auxiliary agent, is obtained straight by the way of press strip
Diameter is the strip-shaped product of 2~5mm, compared with screw extrusion molding, screw extruder be in the state of heating, by screw rod,
Constantly material, rotation is promoted forward, and the interval between screw rod and screw rod shell is smaller, less than 2mm, and screw rod and screw rod shell
Length is larger, about 2350mm, the thickness 200mm of die head, the thickness 15mm of discharge hole, material during forward impelling,
It is constantly sheared, from extrusion molding is fed to, the pilot process time is long, the material thrust and shearing powerful by screw rod
Power, aluminium pigment squeezes out difficulty, and the structure of aluminium pigment is easy to be damaged, and obtained product squeezes out front and back form and aspect variation greatly,
And formed by the way of press strip, not by shearing force when material forming, the pilot process time is short, and contains in material
More organic solvent and auxiliary agent, greasy property is good, and material extrusion molding is easier, and structural damage is small, before product press strip
Form and aspect do not change substantially afterwards.After aluminium paste is pressed into strip-shaped product, then it is dried and cutting obtains final products, the form and aspect of product
Highly stable, front and back has almost no change.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow diagram of the preparation method of the strip aluminium pigment of the preferred embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the material pressing device of the preferred embodiment of the present invention.
Fig. 3 is the structural schematic diagram of the bucket end template of binder bucket in Fig. 2.
Marginal data:
1, charging ladle；2, bucket end template；3, hydraulic device；4, hole location.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited by following and
The multitude of different ways of covering is implemented.
Fig. 1 is the flow diagram of the preparation method of the strip aluminium pigment of the preferred embodiment of the present invention.
As shown in Figure 1, the preparation method of the strip aluminium pigment of the present embodiment, includes the following steps:
1) auxiliary agent is added in aluminium paste, is mediated；
2) step 1) resulting material is subjected to press strip, obtains the strip-shaped product that diameter is 2~5mm；
3) it will be cut off after strip-shaped product drying, obtain strip aluminium pigment.
In the present embodiment, after aluminium paste and auxiliary agent are mediated, uses the mode of press strip to obtain diameter and produced for the strip of 2~5mm
Product, compared with screw extrusion molding, screw extruder is, by screw rod, constantly material to be rotated forward in the state of heating
It promotes, the interval between screw rod and screw rod shell is smaller, and less than 2mm, and screw rod and screw rod shell length are larger, about
2350mm, the thickness 200mm of die head, the thickness 15mm of discharge hole, material are constantly sheared during forward impelling,
From extrusion molding is fed to, the pilot process time is long, the material thrust and shearing force powerful by screw rod, and aluminium pigment squeezes out tired
Difficulty, and the structure of aluminium pigment is easy to be damaged, and obtained product squeezes out front and back form and aspect variation greatly, and by the way of press strip
It is formed, the shearing force that material is subject to is small, and the pilot process time is short, and contains more organic solvent and auxiliary agent in material, profit
Slip can be good, and material extrusion molding is easier, and structural damage is small, and form and aspect do not change substantially before and after product press strip.Aluminium
After slurry is pressed into strip-shaped product, then be dried and cutting obtains final products, the form and aspect of product are highly stable, front and back almost without
Variation.
In the present embodiment, the content of aluminium is 62~66% in aluminium paste, and the content of organic solvent is 34~38%, is above
Mass content, the partial size D of aluminium paste50It is 5~15 μm.Preferably, organic solvent is 150# solvent naphtha, D40 solvent naphtha, D70 solvent
One or more of oil, D80 solvent naphtha.Using the aluminium paste of such ratio, solid content is appropriate, when subsequent material pressing device press strip very
It is easy just to be pressed into strip-shaped product, and when solid content is too small, it is difficult to glazing beads molding is carried out, when solid content is too big, frictional force increases, and holds
The structure and form and aspect of easy damaged aluminium pigment.
In the present embodiment, in step 1), aluminium paste: the quality proportioning of auxiliary agent is 1:0.1~0.3.The main function of auxiliary agent is
It is fully dispersed to make aluminium pigment in the case where being completely dried between small aluminium flake, it is still well dispersed.If auxiliary agent is added
Amount be lower than the numerical value, aluminium pigment after being completely dried, dispersibility it is poor, if be higher than the numerical value, will affect user's
Cost, and will affect the form and aspect of aluminium pigment finished product.
In the present embodiment, auxiliary agent is preferably one of polyethylene wax, polypropylene wax, White Mineral Oil and dioctyl adipate.
Above-mentioned auxiliary agent can promote aluminium pigment to form, and increase the greasy property of aluminium paste, make to be easier when glazing beads molding, reduction is layering into
Damage of the type to material structure, and make the aluminium pigment favorable dispersibility being prepared.
In the present embodiment, in step 1), kneading temperature is room temperature, and kneading time is 1~3 hour.Kneading is in order to advantageous
In subsequent glazing beads molding, mediates so that aluminium paste is sufficiently mixed with auxiliary agent, have adjusted the plasticity of aluminium paste material.Using this condition
It carries out aluminium paste and auxiliary agent is mediated, be the result for comprehensively considering efficiency and product quality.
In the present embodiment, in step 2), material press strip uses material pressing device, and as shown in Figures 2 and 3, material pressing device includes
Bucket end template 2 and hydraulic device 3, bucket end template 2 include the hole location 4 of multiple 2~5mm of diameter to distribute alternately, bucket end template 2
With a thickness of 4~10mm, hydraulic device 3 is arranged above bucket end template 2, provides extruding force for the material on bucket end template.
Material after kneading pours into material pressing device, and under the squeezing action of hydraulic device, material is extruded by the hole location of bucket end template
Type, due to bucket end template thickness just 4~10mm, from be fed to discharging, pilot process less than 10 seconds, material easily just by
It extrudes, does not pass through any shearing, material structure, which extrudes front and back almost without the form and aspect by any damage, aluminium pigment, almost not to be had
It changes, form and aspect stability is very good.
In the present embodiment, in step 3), drying carries out in drying box, and drying temperature is 120~160 DEG C, vacuum degree <
0.094MPa, drying time are 6~8 hours.The strip-shaped product that step 2) obtains is dried at this temperature, a part of solvent
It is volatilized with auxiliary agent, obtains that solid content is suitable, strip-shaped product of form stable.
In the present embodiment, in step 3), cutting uses and waves pelletizer or roll squeezer.It waves pelletizer or roll squeezer uses
Conventional equipment obtains the strip aluminium pigment length for meeting application requirement after waving pelletizer or roll squeezer cutting granulation.
The shearing force that pelletizer or roll squeezer are waved similarly for strip aluminium pigment is smaller, smaller to the structural damage of aluminium pigment.
In the present embodiment, the diameter of strip aluminium pigment is 2~5 μm, and length is 7~14mm, and aluminium content is 70~80%, with
Upper is mass content.
According to another aspect of the present invention, a kind of strip aluminium pigment is additionally provided, the system of above-mentioned strip aluminium pigment is used
Preparation Method is prepared.
Embodiment 1
100kg aluminium paste, 26.57kg polyethylene wax are added in kneader, wherein the mass content of aluminium is in aluminium paste
The mass content of 62%, 150# solvent naphtha is 38%, the middle partial size D of aluminium paste50It is 5~15 μm, mediates two hours at normal temperature,
Obtained material will be mediated to be poured into material pressing device, the material pressing device of the present embodiment is binder bucket (shown in Fig. 2),
Binder bucket includes charging ladle 1, bucket end template 2 and hydraulic device 3, charging ladle high 400mm, internal diameter 680mm, outer diameter 700mm, binder
2 diameter of bucket end template of bucket is 675mm, and with a thickness of 4mm, more than 4000 diameters are evenly distributed on the bucket end template 2 of binder bucket
For the hole location 4 of 2mm, apply extruding force using material of the hydraulic device 3 on bucket end template 2, it is 2mm's that material, which is pressed into diameter,
Strip-shaped product,
The strip-shaped product that press strip is obtained is put into drying box, under conditions of 120 DEG C of temperature, vacuum degree < 0.094MPa
It is 8 hours dry,
It after drying, dried material is added to wave carries out cutting granulation in pelletizer, obtain that diameter is 2mm, length is
The strip aluminium pigment of 7mm or so.The aluminium content of obtained strip aluminium pigment is about 70%.
Embodiment 2
100kg aluminium paste, 16.5kg polypropylene wax are added in kneader, wherein the mass content of aluminium is in aluminium paste
The mass content of 66%, 150# solvent naphtha is 34%, the middle partial size D of aluminium paste50It is 5~15 μm, mediates 1 hour at normal temperature,
Obtained material will be mediated to be poured into material pressing device, the material pressing device of the present embodiment is binder bucket (shown in Fig. 2),
Binder bucket includes charging ladle 1, bucket end template 2 and hydraulic device 3, and charging ladle 1 is 400mm high, internal diameter 680mm, outer diameter 700mm, pressure
2 diameter of bucket end template of charging basket is 675mm, and with a thickness of 5mm, more than 4000 are evenly distributed on the bucket end template 2 of binder bucket directly
Diameter is the hole location 4 of 3mm, applies extruding force using material of the hydraulic device 3 on bucket end template 2, and it is 3mm that material, which is pressed into diameter,
Strip-shaped product,
The strip-shaped product that press strip is obtained is put into drying box, under conditions of 160 DEG C of temperature, vacuum degree < 0.094MPa
It is 6 hours dry,
It after drying, dried material is added to wave carries out cutting granulation in pelletizer, obtain that diameter is 3mm, length is
The strip aluminium pigment of 10mm or so.The aluminium content of obtained strip aluminium pigment is about 80%.
Embodiment 3
100kg aluminium paste, 18.33kg dioctyl adipate are added in kneader, wherein in aluminium paste aluminium mass content
Mass content for 65%, 150# solvent naphtha is 35%, the middle partial size D of aluminium paste50It is 5~15 μm, mediates 3 hours at normal temperature,
Obtained material will be mediated to be poured into material pressing device, the material pressing device of the present embodiment is binder bucket (shown in Fig. 2),
Binder bucket includes charging ladle 1, bucket end template 2 and hydraulic device 3, and charging ladle 1 is 400mm high, internal diameter 680mm, outer diameter 700mm, pressure
2 diameter of bucket end template of charging basket is 675mm, and with a thickness of 10mm, more than 4000 are evenly distributed on the bucket end template 2 of binder bucket directly
Diameter is the hole location 4 of 5mm, applies extruding force using material of the hydraulic device 3 on bucket end template 2, and it is 5mm that material, which is pressed into diameter,
Strip-shaped product,
The strip-shaped product that press strip is obtained is put into drying box, under conditions of 140 DEG C of temperature, vacuum degree < 0.094MPa
It is 7 hours dry,
It after drying, dried material is added to wave carries out cutting granulation in pelletizer, obtain that diameter is 5mm, length is
The strip aluminium pigment of 14mm or so.The aluminium content of obtained strip aluminium pigment is about 78%.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of strip aluminium pigment, which comprises the steps of:
1) auxiliary agent is added in aluminium paste, is mediated；
2) step 1) resulting material is subjected to press strip, obtains the strip-shaped product that diameter is 2~5mm；
3) it will be cut off after strip-shaped product drying, obtain the strip aluminium pigment.
2. the preparation method of strip aluminium pigment according to claim 1, which is characterized in that
In step 2), material press strip uses material pressing device,
The material pressing device includes bucket end template and hydraulic device, and the bucket end template includes the hole location of multiple 2~5mm of diameter,
The bucket end template with a thickness of 4~10mm, the hydraulic device is arranged above the bucket end template, for the bucket bottom
Material in template provides uniformly lower pressure.
3. the preparation method of strip aluminium pigment according to claim 1, which is characterized in that
The content of aluminium is 62~66% in the aluminium paste, and it is mass content that the content of organic solvent is 34~38% above,
The partial size D of aluminium paste50It is 5~15 μm.
4. the preparation method of strip aluminium pigment according to claim 1, which is characterized in that
In step 1), aluminium paste: the quality proportioning of auxiliary agent is 1:0.1~0.3.
5. the preparation method of strip aluminium pigment according to claim 4, which is characterized in that
The auxiliary agent is one of polyethylene wax, polypropylene wax, White Mineral Oil and dioctyl adipate.
6. the preparation method of strip aluminium pigment according to claim 1-5, which is characterized in that
In step 1), kneading temperature is room temperature, and kneading time is 1~3 hour.
7. the preparation method of strip aluminium pigment according to claim 1-5, which is characterized in that
In step 3), the cutting uses and waves pelletizer or roll squeezer.
8. the preparation method of strip aluminium pigment according to claim 1-5, which is characterized in that
In step 3), the drying carries out in drying box, and drying temperature is 120~160 DEG C, vacuum degree < 0.094MPa, does
The dry time is 6~8 hours.
9. the preparation method of strip aluminium pigment according to claim 1-5, which is characterized in that
The diameter of the strip aluminium pigment is 2~5mm, and length is 7~14mm,
Aluminium content is 70~80%, and the above are mass contents.
10. a kind of strip aluminium pigment, which is characterized in that
It is prepared using the preparation method of the described in any item strip aluminium pigments of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606357.9A CN109676821A (en) | 2018-12-27 | 2018-12-27 | The preparation method and strip aluminium pigment as made from it of strip aluminium pigment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606357.9A CN109676821A (en) | 2018-12-27 | 2018-12-27 | The preparation method and strip aluminium pigment as made from it of strip aluminium pigment |
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| CN109676821A true CN109676821A (en) | 2019-04-26 |
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ID=66189861
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| CN201811606357.9A Pending CN109676821A (en) | 2018-12-27 | 2018-12-27 | The preparation method and strip aluminium pigment as made from it of strip aluminium pigment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114907726A (en) * | 2022-06-29 | 2022-08-16 | 长沙族兴新材料股份有限公司 | Water-soluble strip aluminum pigment and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114907726A (en) * | 2022-06-29 | 2022-08-16 | 长沙族兴新材料股份有限公司 | Water-soluble strip aluminum pigment and preparation method thereof |
| CN114907726B (en) * | 2022-06-29 | 2023-01-31 | 长沙族兴新材料股份有限公司 | Water-soluble strip aluminum pigment and preparation method thereof |
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