CN106280583A - A kind of benzimidazole modified manometer silicon dioxide coating modification thin slice aluminium powder pigment and preparation method thereof - Google Patents
A kind of benzimidazole modified manometer silicon dioxide coating modification thin slice aluminium powder pigment and preparation method thereof Download PDFInfo
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- CN106280583A CN106280583A CN201610595041.9A CN201610595041A CN106280583A CN 106280583 A CN106280583 A CN 106280583A CN 201610595041 A CN201610595041 A CN 201610595041A CN 106280583 A CN106280583 A CN 106280583A
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- aluminium powder
- benzimidazole
- thin slice
- silicon dioxide
- dehydrated alcohol
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/62—Metallic pigments or fillers
- C09C1/64—Aluminium
- C09C1/648—Aluminium treated with inorganic and organic, e.g. polymeric, compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/90—Other properties not specified above
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- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses a kind of benzimidazole modified manometer silicon dioxide coating modification thin slice aluminium powder pigment, be prepared by the raw materials in: aluminum pigment 2 2.3, TEOS 3 3.5, ammonia 4.5 5, dehydrated alcohol are appropriate, distilled water 5 5.5, sodium molybdate 0.3 0.4, benzimidazole 0.2 0.3, glucose 0.2 0.3, nanometer Zn WO40.3 0.4, acrylic acid trifluoro ethyl ester 0.4 0.5, dicumyl peroxide 0.03 0.04.By the present invention in that and carry out mixed and modified with sodium molybdate, benzimidazole, glucose, improve the dispersibility of sodium molybdate, benzimidazole, can be dispersed in aluminium powder surface, improve the compactness of coating film, glucose improves the non-oxidizability of aluminium powder, resistance to corrosion.
Description
Technical field
The present invention relates to aluminium powder pigment technical field, particularly relate to a kind of benzimidazole modified manometer silicon dioxide cladding and change
Property thin slice aluminium powder pigment and preparation method thereof.
Background technology
Thin slice (0.1~1 μ m-thick, 5~50 μm length or width) metallic aluminium pigment is owing to having special changeable colors along with angle optics effect
Should and metallic luster, be widely used in car paint, industrial coating, printing-ink and plastics and add
In industry.But aluminum is amphiprotic activity metal, the O in contact acid aqueous slkali or air2As easy as rolling off a log generation aoxidizes and becomes
Black, affect its metallic luster, also can produce substantial amounts of H2, affect its bin stability.
Improving the bin stability of aluminium powder, prevent aluminium powder surface oxidized, effective method is to enter at aluminium powder microparticle surfaces
Row modification, one layer of corrosion inhibitor of surface adsorption or one layer of inert layer of microcapsule coated, isolation aluminum and oxygen, directly the connecing of water
Touch.Compared to absorption organic corrosion inhibitor, form one layer of thin and compact passivation layers of chrome or SiO on aluminium powder surface2Layer
Deng inorganic layer, there is extraordinary oxidation and corrosion performance .Y .Iriyama with tetraethyl orthosilicate (TEOS) as forerunner
Body, using plasma polymerization has been coated with one layer of SiO at aluminium powder particle surface2 Layer.Sol-gal process because reaction temperature is low,
Processes and apparatus is simple, has wider industrial application value.Ralf Supplit and Ul rich Schubert uses phosphorus
Acid catalysis teos hydrolysis carries out ground floor cladding to aluminium powder, then with hexadecyl trimethoxy silane or dimethyl two
Methoxy silane hydrolysis carries out second layer cladding, and cladding aluminium powder has preferable stability in the alkali liquor of hot water and pH=9.
Liu Hui etc. use methyl allyl acyloxypropyl trimethoxysilane that aluminium powder carries out pretreatment, then use emulsion in situ to gather
The method cladding polymethyl methacrylate closed.Li Lijuns etc. use TEOS that thin slice aluminium powder has been carried out Nano-meter SiO_22Cladding,
TEOS and VTES is used to hydrolyze simultaneously and aluminium powder has carried out the Nano-meter SiO_2 of hydridization2 Cladding, and at this base
Using polymer to carry out second layer cladding on plinth, cladding aluminium powder can stable existence 30 d in the alkali liquor of pH=11.Jo
Stein Mardalen etc. find that the impact of the chemical stability of cladding aluminium powder is compared coated Si by the form of coated Si and coverage degree
The impact of thickness more important.
" Nano-meter SiO_22Coating modification thin slice aluminium powder pigment and acid resistance research thereof " literary composition with TEOS as presoma, adopt
SiO is prepared by sol-gel process2Aluminium powder pigment (the Al/SiO of cladding2), detailed examination reaction temperature, response time, aluminum silicon
Than process conditions such as (S=nAl/nTEOS), water silicon ratio (R=nH2O/nTEOS) and catalyst amounts to clad form and product
The acid proof impact of product.
But use Nano-meter SiO_22The thin slice aluminium powder pigment brightness of coating modification declines, and needs to improve.And aluminium powder pigment
Corrosion resistance, thermostability, anti-radiation, ultra-violet resistance, resistance to water, resistance to ag(e)ing, antibiotic property, corrosion resistance, scratch,
The performance such as stability, thermal diffusivity is also required to further promote.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of benzimidazole modified manometer silicon dioxide
Coating modification thin slice aluminium powder pigment and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of benzimidazole modified manometer silicon dioxide coating modification thin slice aluminium powder pigment, is prepared by the raw materials in:
Aluminum pigment 2-2.3, TEOS 3-3.5, ammonia 4.5-5, dehydrated alcohol are appropriate, distilled water 5-5.5, sodium molybdate 0.3-0.4, benzene a pair of horses going side by side
Imidazoles 0.2-0.3, glucose 0.2-0.3, nanometer Zn WO40.3-0.4, acrylic acid trifluoro ethyl ester 0.4-0.5, dicumyl peroxide
0.03-0.04。
The preparation method of described benzimidazole modified manometer silicon dioxide coating modification thin slice aluminium powder pigment, including following
Step:
(1) by sodium molybdate, benzimidazole, glucose mixing, grind uniformly, with nanometer Zn WO after cooling4With 30-35 weight portion
Dehydrated alcohol mixes, and ultrasonic disperse 5-10 minute adds acrylic acid trifluoro ethyl ester, dicumyl peroxide is heated to 40-45 DEG C,
Stirring reaction 30-40 minute, adds TEOS, stirs, obtain mixture;
(2) dehydrated alcohol of aluminum pigment and 50-55 weight portion is mixed, stir 1-1.2h under nitrogen protection, then heat to
40-45 DEG C, obtain slurry;
(3) by ammonia and the dehydrated alcohol of 30 weight portions and distilled water mix homogeneously, the mixture obtained with (1st) step drips simultaneously
Being added in (2nd) slurry obtained, controlling rate of addition is 1 drop/sec, after dropping, reacts 6-6.5h at 40-43 DEG C,
Stopped reaction, vacuum filtration, with absolute ethanol washing product 3 times, it is drying to obtain.
The invention have the advantage that the present invention uses nanometer Zn WO4, acrylic acid trifluoro ethyl ester aluminum pigment is modified,
ZnWO4Being coated on aluminium powder surface and improve bright property and the rotproofness of aluminium powder, acrylic acid trifluoro ethyl ester improves the water-fast of aluminium powder
Property and compactness, reduce air oxidation, improve the floatability of aluminium powder;By using sodium molybdate, benzimidazole, glucose to carry out
Mixed and modified, improve the dispersibility of sodium molybdate, benzimidazole, it is possible to be dispersed in aluminium powder surface, improve coating film
Compactness, glucose improves the non-oxidizability of aluminium powder, resistance to corrosion.
Detailed description of the invention
A kind of benzimidazole modified manometer silicon dioxide coating modification thin slice aluminium powder pigment, by following weight portion (kilogram)
Raw material is made: aluminum pigment 2, TEOS 3, ammonia 4.5, dehydrated alcohol are appropriate, distilled water 5, sodium molybdate 0.3, benzimidazole 0.2, Portugal
Grape sugar 0.2, nanometer Zn WO40.3, acrylic acid trifluoro ethyl ester 0.4, dicumyl peroxide 0.03.
The preparation method of described benzimidazole modified manometer silicon dioxide coating modification thin slice aluminium powder pigment, including following
Step:
(1) by sodium molybdate, benzimidazole, glucose mixing, grind uniformly, with nanometer Zn WO after cooling4Nothing with 30 weight portions
Water-ethanol mixes, and ultrasonic disperse 5 minutes adds acrylic acid trifluoro ethyl ester, dicumyl peroxide is heated to 40 DEG C, stirring reaction
30 minutes, add TEOS, stir, obtain mixture;
(2) dehydrated alcohol of aluminum pigment and 50 weight portions is mixed, stir 1h under nitrogen protection, then heat to 40 DEG C,
To slurry;
(3) by ammonia and the dehydrated alcohol of 30 weight portions and distilled water mix homogeneously, the mixture obtained with (1st) step drips simultaneously
Being added in (2nd) slurry obtained, controlling rate of addition is 1 drop/sec, after dropping, reacts 6h at 40 DEG C, stops anti-
Should, vacuum filtration, with absolute ethanol washing product 3 times, it is drying to obtain.
Under microscopic visualization, aluminium powder surface has the coating film of densification to the present embodiment aluminium powder pigment, and has fluorescence
Bright spot, specific surface area is 10.26cm2/ g. aluminium powder in the acid solution of pH=1 can stable existence 30 d and do not produce H2。
Claims (2)
1. a benzimidazole modified manometer silicon dioxide coating modification thin slice aluminium powder pigment, it is characterised in that by following weight portion
Raw material make: aluminum pigment 2-2.3, TEOS 3-3.5, ammonia 4.5-5, dehydrated alcohol are appropriate, distilled water 5-5.5, sodium molybdate
0.3-0.4, benzimidazole 0.2-0.3, glucose 0.2-0.3, nanometer Zn WO40.3-0.4, acrylic acid trifluoro ethyl ester 0.4-0.5,
Dicumyl peroxide 0.03-0.04.
The preparation side of benzimidazole modified manometer silicon dioxide coating modification thin slice aluminium powder pigment the most according to claim 1
Method, it is characterised in that comprise the following steps:
(1) by sodium molybdate, benzimidazole, glucose mixing, grind uniformly, with nanometer Zn WO after cooling4With 30-35 weight portion
Dehydrated alcohol mixes, and ultrasonic disperse 5-10 minute adds acrylic acid trifluoro ethyl ester, dicumyl peroxide is heated to 40-45 DEG C,
Stirring reaction 30-40 minute, adds TEOS, stirs, obtain mixture;
(2) dehydrated alcohol of aluminum pigment and 50-55 weight portion is mixed, stir 1-1.2h under nitrogen protection, then heat to
40-45 DEG C, obtain slurry;
(3) by ammonia and the dehydrated alcohol of 30 weight portions and distilled water mix homogeneously, the mixture obtained with (1st) step drips simultaneously
Being added in (2nd) slurry obtained, controlling rate of addition is 1 drop/sec, after dropping, reacts 6-6.5h at 40-43 DEG C,
Stopped reaction, vacuum filtration, with absolute ethanol washing product 3 times, it is drying to obtain.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018159012A (en) * | 2017-03-23 | 2018-10-11 | 東洋アルミニウム株式会社 | Heat-radiating filler and heat-radiating resin composition containing the same |
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CN1774482A (en) * | 2003-07-18 | 2006-05-17 | 东洋铝株式会社 | Flake pigment, coating material and powder coating composition each containing the same, and surface-treating agent for flaky particle for use therein |
CN104479425A (en) * | 2014-12-18 | 2015-04-01 | 常熟市环虹化工颜料厂 | Preparation method of water-based aluminum pigment |
CN105239130A (en) * | 2015-09-24 | 2016-01-13 | 马鞍山杰创塑胶科技有限公司 | High-antiseptic aluminum alloy anode oxide film non-nickel sealant and preparation method thereof |
-
2016
- 2016-07-27 CN CN201610595041.9A patent/CN106280583A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1774482A (en) * | 2003-07-18 | 2006-05-17 | 东洋铝株式会社 | Flake pigment, coating material and powder coating composition each containing the same, and surface-treating agent for flaky particle for use therein |
CN104479425A (en) * | 2014-12-18 | 2015-04-01 | 常熟市环虹化工颜料厂 | Preparation method of water-based aluminum pigment |
CN105239130A (en) * | 2015-09-24 | 2016-01-13 | 马鞍山杰创塑胶科技有限公司 | High-antiseptic aluminum alloy anode oxide film non-nickel sealant and preparation method thereof |
Non-Patent Citations (2)
Title |
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刘国杰 等: "《现代涂料与涂装技术》", 31 May 2002, 中国轻工业出版社 * |
皮丕辉 等: "纳米SiO2包覆改性薄片铝粉颜料及其耐酸性研究", 《湖南大学学报》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018159012A (en) * | 2017-03-23 | 2018-10-11 | 東洋アルミニウム株式会社 | Heat-radiating filler and heat-radiating resin composition containing the same |
JP7123525B2 (en) | 2017-03-23 | 2022-08-23 | 東洋アルミニウム株式会社 | Heat-dissipating filler, heat-dissipating resin composition containing the same, and method for producing heat-dissipating filler |
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