CN102516830A - Method for preparing core-shell flaky aluminum powder-polyacrylic acid composite particles - Google Patents
Method for preparing core-shell flaky aluminum powder-polyacrylic acid composite particles Download PDFInfo
- Publication number
- CN102516830A CN102516830A CN2011103809160A CN201110380916A CN102516830A CN 102516830 A CN102516830 A CN 102516830A CN 2011103809160 A CN2011103809160 A CN 2011103809160A CN 201110380916 A CN201110380916 A CN 201110380916A CN 102516830 A CN102516830 A CN 102516830A
- Authority
- CN
- China
- Prior art keywords
- composite particles
- flake aluminum
- rohm
- preparation
- hud typed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 46
- 239000011246 composite particle Substances 0.000 title claims abstract description 28
- 239000011258 core-shell material Substances 0.000 title abstract description 5
- 238000000034 method Methods 0.000 title abstract description 5
- 229920002125 Sokalan® Polymers 0.000 title abstract 4
- 239000004584 polyacrylic acid Substances 0.000 title abstract 4
- 239000000049 pigment Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003999 initiator Substances 0.000 claims abstract description 5
- 239000002270 dispersing agent Substances 0.000 claims abstract description 3
- 239000004411 aluminium Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 15
- 238000009987 spinning Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 8
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 7
- 239000004160 Ammonium persulphate Substances 0.000 claims description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical group [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 4
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical group CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000002000 scavenging effect Effects 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 12
- 239000002253 acid Substances 0.000 abstract description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001257 hydrogen Substances 0.000 abstract description 4
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 4
- 239000002932 luster Substances 0.000 abstract description 4
- 239000003960 organic solvent Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 1
- 229930195729 fatty acid Natural products 0.000 abstract 1
- 239000000194 fatty acid Substances 0.000 abstract 1
- 150000004665 fatty acids Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 4
- 150000002632 lipids Chemical class 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 125000005909 ethyl alcohol group Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses a method for preparing core-shell flaky aluminum powder/ polyacrylic acid composite particles. The method comprises the following steps of: eluting fatty acid coated on the surface of an aluminum powder pigment by adopting an organic solvent at normal temperature, and performing centrifugal separation to obtain flaky aluminum powder; mixing the flaky aluminum powder, acrylic acid, initiator and dispersant, then transferring the mixture to a preheated reactor, and dripping water step by step in the reaction process; and performing centrifugal separation on the reaction product, and thus obtaining the core-shell flaky aluminum powder-polyacrylic acid composite particles. The core-shell flaky aluminum powder-polyacrylic acid composite particles have excellent acid corrosion resistance based on high metallic luster, are extremely low in hydrogen evolution, and are particularly suitable for water-based coatings.
Description
Technical field
The present invention relates to the technical field of surface of metallic pigment, be specifically related to the preparation method of a kind of hud typed flake aluminum-ROHM composite particles.
Background technology
Flake aluminum is the metallic effect pigments of using always, has that good dispersivity, strong adhesion, color and luster true to naturely exactly like silver, luminous reflectance is effective and bright characteristics such as lasting.As wealth and rank, power and lucky symbol, extensively become the indispensable even irreplaceable colors in field such as high-grade color printing packing, high-grade decoration, automobile and topcoat for motorbike, artwork modification with its silver color that modulates.
Aluminum chemistry character is active, and especially for micron-sized flake aluminum, its particle diameter is little, specific surface area is big; Aluminium powder surface atom number is a lot, activity is very big; These be exposed to outer surfaces of aluminum atom as easy as rolling off a log with environment in reactions such as acid, alkali, water, oxygen, and make flake aluminum pigment rotten, lose characteristics such as original metallic gloss; Its color can become pearl by bright metallic color gradually, and this has had a strong impact on performance of products.In addition; Receive the restriction of environmental factors, coating and paint industry just use the direction of volatile organic solvent to develop towards reducing, and water-borne coatings is to address this problem preferably to select; Yet; Traditional flake aluminum is corroded in the water-borne coatings environment easily, and its consequence not only can make flake aluminum lose metalluster, even possibly cause burning or blast.Therefore, be necessary flake aluminum is carried out surface treatment.
ROHM is usually used in the coating modification of flake aluminum because light transmission is good, with low cost, makes it be applicable to water-based system.But problems such as the flake aluminum of existing ROHM coating modification exists, and metalluster is low, acid resistance difference and liberation of hydrogen are big.
Summary of the invention
The objective of the invention is provides the preparation method of a kind of hud typed flake aluminum-ROHM composite particles in order to solve the deficiency that prior art exists.The composite particles metal luster of this method preparation is high, acid-alkali-corrosive-resisting, and liberation of hydrogen is few, is applicable to water-borne coatings.
The present invention achieves the above object through following method:
The preparation method of a kind of hud typed flake aluminum-ROHM composite particles may further comprise the steps:
(1) at normal temperatures pigment aluminium powder (the pigment aluminium powder is coated with lipid acid usually) is added in the cleaning solvent, stirring and washing makes the surface coated lipid acid dissolving of pigment aluminium powder at a slow speed, removes liquid through spinning, obtains flake aluminum;
(2) in mass fraction; 1 part of flake aluminum, 0.1 part of vinylformic acid, 0.15 part of initiator and 50 parts of dispersant are evenly added in the stirring reactor back; Drip 2 parts of zero(ppm) water in the reaction process, stop heating after 1 hour, continue again to stir 0.5 hour;
(3) the composite particles suspension-s with gained carries out spinning, obtains hud typed flake aluminum-ROHM composite particles.
Preferably, the cleaning solvent of step (1) is butanone or cyclohexanone, in order to remove the lipid acid on pigment aluminium powder surface; The mass ratio of pigment aluminium powder and cleaning solvent is preferably 1:5; Scavenging period is 0.5 hour, cleaning, spinning repeatable operation three times.
Preferably, the initiator of step (2) is an ammonium persulphate, and dispersion agent is Virahol or absolute ethyl alcohol; The mode that drips zero(ppm) water is preferably at the uniform velocity and drips; Reactor drum is preheated to 95 ℃ earlier before reinforced.
The flake aluminum of gained is the slurry attitude in the step (1), is made up of flake aluminum and a small amount of organic solvent.
The hud typed flake aluminum of gained in the step (3)-ROHM composite particles is the slurry attitude, by flake aluminum-ROHM composite particles, dispersion agent and on a small quantity other component constitute.
Described the finished product are to be nuclear with the flake aluminum, and vinylformic acid forms coating layer at its surface aggregate, and this core-shell type complex particle not only has high metalluster, and acid resistance is high, and liberation of hydrogen is extremely low.
The present invention compared with prior art has following advantage:
1. the present invention is in the preparation process, and acrylic acid carboxyl combines to form the C-O-Al key with the hydroxyl on flake aluminum surface, and this layer coating layer and flake aluminum surface have stronger bonding force.
2. the present invention is in the preparation process; There is the solvent protection on the flake aluminum surface; Adopt organic solvent to make dispersion agent in the coating reaction process, the zero(ppm) water addition is few and adopt and at the uniform velocity drip mode, and the flake aluminum surface is reduced with contacting significantly of empty G&W; Basically avoided oxidative phenomena, the metal luster of the hud typed flake aluminum-ROHM composite particles of preparation is high.
3. the ROHM layer combines fine and closely with flake aluminum, has effectively completely cut off contacting of flake aluminum and other corrosive mediums, so the acid resistance of hud typed flake aluminum-ROHM composite particles of preparing of the present invention is good.
Embodiment
Embodiment 1
(1) presses mass ratio 1:5 (pigment aluminium powder: butanone) commercially available pigment aluminium powder (13 microns of mean particle sizes) was added in the butanone at a slow speed stirring and washing 0.5 hour, clean, spinning operation triplicate.Flake aluminum hydrogen-separating quantity after the cleaning be 183.0 milliliters/(0.5 gram aluminium powder), coating gloss is 90.1 glossiness units.
The reactor drum that (2) whisking appliance, reflux condensing tube and TM will be housed places thermostat water bath to be heated to 95 ℃.
(3), 1 part of flake aluminum, 0.1 part of vinylformic acid, 0.15 part of ammonium persulphate and 50 parts of Virahols are mixed in mass fraction.
(4) mixing solutions is transferred in the reactor drum of constant temperature to 95 ℃, at the uniform velocity drips 2 parts of zero(ppm) water in the reaction process, stop heating after 1 hour, continue again to stir 0.5 hour;
(5) with the composite particles suspension-s spinning of gained, obtain the finished product, the composite particles hydrogen-separating quantity for preparing under this condition be 0.2 milliliter/(0.5 gram aluminium powder), coating gloss is 89.3 glossiness units.
Embodiment 2
(1) presses mass ratio 1:5 (pigment aluminium powder: cyclohexanone) commercially available pigment aluminium powder (10 microns of mean particle sizes) was added in the cyclohexanone at a slow speed stirring and washing 0.5 hour, clean, spinning operation triplicate.Flake aluminum hydrogen-separating quantity after the cleaning be 182.0 milliliters/(0.5 gram aluminium powder), coating gloss is 90 glossiness units.
The reactor drum that (2) whisking appliance, reflux condensing tube and TM will be housed places thermostat water bath to be heated to 95 ℃.
(3), 1 part of flake aluminum, 0.1 part of vinylformic acid, 0.15 part of ammonium persulphate and 50 parts of absolute ethyl alcohols are mixed in mass fraction.
(4) mixing solutions is transferred in the reactor drum of constant temperature to 95 ℃, at the uniform velocity drips 2 parts of zero(ppm) water in the reaction process, stop heating after 1 hour, continue again to stir 0.5 hour;
(5) with the composite particles suspension-s spinning of gained, obtain the finished product, the composite particles hydrogen-separating quantity for preparing under this condition be 0.5 milliliter/(0.5 gram aluminium powder), coating gloss is 89.3 glossiness units.
Claims (7)
1. the preparation method of hud typed flake aluminum-ROHM composite particles is characterized in that may further comprise the steps:
(1) the pigment aluminium powder is added stirring and washing in the cleaning solvent, remove liquid, obtain flake aluminum through spinning;
(2) in mass fraction; 1 part of flake aluminum, 0.1 part of vinylformic acid, 0.15 part of initiator and 50 parts of dispersant are evenly added in the stirring reactor in 95 ℃ of reactions the back; Drip 2 parts of zero(ppm) water in the reaction process, stop heating after 1 hour, continue again to stir 0.5 hour;
(3) the composite particles suspension-s with gained carries out spinning, obtains hud typed flake aluminum-ROHM composite particles.
2. according to the preparation method of the hud typed flake aluminum-ROHM composite particles of claim 1, it is characterized in that the described cleaning solvent of step (1) is butanone or cyclohexanone.
3. according to the preparation method of the hud typed flake aluminum-ROHM composite particles of claim 1, it is characterized in that the mass ratio of described pigment aluminium powder of step (1) and cleaning solvent is 1:5.
4. according to the preparation method of the hud typed flake aluminum-ROHM composite particles of claim 1, it is characterized in that in the step (1), scavenging period is 0.5 hour, clean, spinning repeatable operation three times.
5. according to the preparation method of the hud typed flake aluminum-ROHM composite particles of claim 1, it is characterized in that in the step (2) that the dropping mode of zero(ppm) water is at the uniform velocity to drip in reaction process.
6. according to the preparation method of the hud typed flake aluminum-ROHM composite particles of claim 1, it is characterized in that in the step (2), said initiator is an ammonium persulphate, dispersion agent is Virahol or absolute ethyl alcohol.
7. according to the preparation method of the hud typed flake aluminum-ROHM composite particles of claim 1, it is characterized in that in the step (2) that reactor drum is preheated to 95 ℃ earlier before reinforced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110380916.0A CN102516830B (en) | 2011-11-25 | 2011-11-25 | Method for preparing core-shell flaky aluminum powder-polyacrylic acid composite particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110380916.0A CN102516830B (en) | 2011-11-25 | 2011-11-25 | Method for preparing core-shell flaky aluminum powder-polyacrylic acid composite particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102516830A true CN102516830A (en) | 2012-06-27 |
| CN102516830B CN102516830B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110380916.0A Expired - Fee Related CN102516830B (en) | 2011-11-25 | 2011-11-25 | Method for preparing core-shell flaky aluminum powder-polyacrylic acid composite particles |
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| Country | Link |
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| CN (1) | CN102516830B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108912592A (en) * | 2018-08-03 | 2018-11-30 | 安徽江淮汽车集团股份有限公司 | A kind of polyformaldehyde composite material and preparation method thereof |
| CN108976891A (en) * | 2018-08-09 | 2018-12-11 | 阜阳市诗雅涤新材料科技有限公司 | A kind of hard monomer cladding aluminium silver powder and its production method and application |
| CN110683518A (en) * | 2019-10-29 | 2020-01-14 | 中国科学院深圳先进技术研究院 | Process for producing metal oxide |
| CN111675986A (en) * | 2020-07-30 | 2020-09-18 | 常州华日升反光材料有限公司 | Preparation method of special heat conduction pressure-sensitive adhesive for microprism film |
| CN113265163A (en) * | 2021-05-15 | 2021-08-17 | 深圳华城新材料科技有限公司 | Surface coating method for metal and non-metal pigment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580653A (en) * | 2009-06-10 | 2009-11-18 | 华南理工大学 | Organic-inorganic hybrid nanometer film coating aluminum powder pigment and preparation method and application thereof |
-
2011
- 2011-11-25 CN CN201110380916.0A patent/CN102516830B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580653A (en) * | 2009-06-10 | 2009-11-18 | 华南理工大学 | Organic-inorganic hybrid nanometer film coating aluminum powder pigment and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 瞿晓岳 等: "丙烯酸原位聚合制备水性铝颜料", 《中国有色金属学报》, vol. 20, no. 9, 30 September 2010 (2010-09-30) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108912592A (en) * | 2018-08-03 | 2018-11-30 | 安徽江淮汽车集团股份有限公司 | A kind of polyformaldehyde composite material and preparation method thereof |
| CN108976891A (en) * | 2018-08-09 | 2018-12-11 | 阜阳市诗雅涤新材料科技有限公司 | A kind of hard monomer cladding aluminium silver powder and its production method and application |
| CN110683518A (en) * | 2019-10-29 | 2020-01-14 | 中国科学院深圳先进技术研究院 | Process for producing metal oxide |
| CN111675986A (en) * | 2020-07-30 | 2020-09-18 | 常州华日升反光材料有限公司 | Preparation method of special heat conduction pressure-sensitive adhesive for microprism film |
| CN113265163A (en) * | 2021-05-15 | 2021-08-17 | 深圳华城新材料科技有限公司 | Surface coating method for metal and non-metal pigment |
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| Publication number | Publication date |
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| CN102516830B (en) | 2014-04-02 |
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