CN104893367A - Fluorescent brightener-added micro/nano powder material and preparation method thereof - Google Patents
Fluorescent brightener-added micro/nano powder material and preparation method thereof Download PDFInfo
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- CN104893367A CN104893367A CN201510380886.1A CN201510380886A CN104893367A CN 104893367 A CN104893367 A CN 104893367A CN 201510380886 A CN201510380886 A CN 201510380886A CN 104893367 A CN104893367 A CN 104893367A
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Abstract
The invention relates to a fluorescent brightener-containing micro/nano powder material and a preparation method thereof. A fluorescent brightener is guided on polyhedron pigment particles, and is uniformly dispersed in a polyhedron micro/nano powder material by a special preparation method. Original metal luster of the polyhedron pigment particles is ensured, and furthermore the polyhedron pigment particles are enabled to have whitening and brightening effects; the color darkening problem of the polyhedron micro/nano powder material is effectively solved.
Description
Technical field
The present invention relates to a kind of micro-nano powder material and preparation method thereof, particularly relate to a kind of micro-nano powder material containing white dyes and preparation method thereof.
Background technology
Polyhedral pigment particles refers to the substrate surface at micro-nano powder, utilizes the uniform coated one deck nano level metal of physical method or metal compound film, utilizes the reflex of light and presents a kind of novel High-tech Material of metalluster.Polyhedral pigment particles possesses a series of optical property, has certain weathering resistance, and by coating, printing, sprays, the modes such as injection moulding, for paper, cloth, wood, metal, leatherware, plastic cement, pottery waits on multiple material, forms decoration or the special or eye-catching effect such as reflective.But in actual applications, find that polyhedral pigment particles is in the processes such as injection moulding, there will be the phenomenon that color is partially dark, how to improve this phenomenon, the practical application for polyhedron micro-nano powder material is significant.
White dyes is a kind of with the colourless of fluorescence or light colored dyes, and they are applied in matrix can absorb sightless short wave ultraviolet light, and then is discharged by luminous energy with the form of visible ray, thus substrate is reached brighten the effect of blast.Nineteen twenty-nine, the artificial silk of yellowing look is immersed in the solution of Esculetin glycoside and produces whitening effect by fritz Krais, and from then on white dyes starts the visual field entering people.It is reported, white dyes in the world about has 15 kinds of basic structure types at present, and nearly 400 kinds of structures, are widely used in multiple fields such as papermaking, weaving, washing composition.
In order to solve the colour-darkening problem of polyhedron micro-nano powder material, white dyes is introduced on polyhedral pigment particles by the present invention, and by special preparation method, make white dyes dispersed in polyhedron micro-nano powder material, outside guarantee polyhedral pigment particles original metalluster, make it have brighten, the effect of blast.
Summary of the invention
The present invention uses white dyes to brighten micro-nano powder, main purpose allows white dyes be evenly distributed on micro-nano powder with the form of molecule, uniform lifting is had to the whiteness of whole powder, avoid skewness and occur the situation of hickie, the obfuscation of micro-nano powder material surface being had simultaneously and improve effect.
The invention provides a kind of micro-nano powder material, comprise substrate material, be coated on the outer field coating of substrate material and white dyes.
Substrate material comprises all materials that can exist with 1 micron ~ 1 centimetre particles form such as man-made glass, quartz sand, enamel, aluminium sesquioxide, aluminium nitride, cubic boron nitride, silicon carbide, calcite, molecular sieve.
Be coated on the outer field plated film of substrate material and comprise metal species coating, alloy type coating and the metal oxide-type coating such as gold and silver, copper, iron, aluminium, titanium, zirconium;
Micro-nano powder is through modes such as organic solvent cleaning, aqueous cleaning agent cleaning, matting, electrochemical cleaning, steam flushing, high pressure jet cleaning, ultrasonic cleaning, remove greasy dirt and other impurity substances on surface, guarantee powder surface foreign, for subsequent use after drying;
The white dyes used needs to have certain high-temperature stability, prevents polyhedral pigment particles from volatilizing or thermolysis because of high temperature in injection moulding process.The content of white dyes is different and different with the kind of micro-nano powder according to the kind of white dyes, can be the 0.08%-0.12% of powder quality.The dibenzoxazine class for plastic applications can be selected, distyryl benzene type and distyryl biphenyl class, specifically comprise: 1, two (5-methyl-2-benzoxazolyl) ethene (the white dyes PF of 2-, CAS No.1041-00-5), 2, two-(benzoxazole-the 2-of 5-) thiophene (white dyes PB, CAS No.2866-43-5), 2, two (the 5-tertiary butyl-2-benzoxazolyl) thiophene (fluorescent whitening agent OB of 5-, CASNo.7128-64-5), 1, 4-bis-(benzoxazole-2-base) naphthalene (white dyes KCB, CAS No.5089-22-5), 2, 2-(4, 4-diphenylethyllene) dibenzoxazine (fluorescent whitening agent OB-1, CAS No.1533-45-5), 1, two (5 methyl-benzoxazolyl) ethene (the white dyes PF of 2-, CAS No.1041-00-5), 1, two (the 2-cyano-styrene base) benzene (fluorescent whitening agent ER-I of 4-, CAS No.13001-39-3), 4, two (2-methoxyl-styrene) biphenyl (fluoresent whitener CBS-127 of 4-, CAS No.40470-68-6) etc.,
White dyes adds in micro-nano powder material and easily causes skewness, this project adopts liquid phase method evenly white dyes to be published on micro-nano powder material surface, and concrete steps are: white dyes and organic solvent or water are configured to the solution that concentration is 0.8 ~ 2.5%; Adopt the mode of spraying or liquid phase attachment that solution is attached to micro-nano powder surface, solution and micro-nano powder mass ratio are 0.5 ~ 1.2: 10; Mixture is placed on the baking oven inner drying 1 ~ 2h of 80 ~ 95 DEG C, makes solvent evaporates, finally obtain the micro-nano powder material mixed containing white dyes.
In addition, this project can also adopt other modes to be made an addition in micro-nano powder material by white dyes.Such as: solid phase method and vapor phase process.Solid phase method white dyes powder and micro-nano powder is utilized ball milled or powder mixing equipment to mix; Vapor phase process is by white dyes high-temperature gasification, by Vacuum sublimation or high-temperature high-pressure reaction kettle, makes gas molecule be attached on micro-nano powder;
Mixing equipment comprises at present Horizontal type helical ribbon mixer, Agravicmixer, coulter type mixer, Conicaldoublewormmixer, taper ribbon mixer, fluid mixer etc. on the market, and all can be used for the equipment of multiple solid phase or liquid-phase mixing.
Accompanying drawing explanation
Fig. 1 is the micro-nano powder injection forming mold not adding white dyes.
Fig. 2 is the micro-nano powder injection forming mold prepared by embodiment 1.
Embodiment
Embodiment 1
In surface attachment aluminium film polyhedral pigment particles, directly add white dyes PF solid, the content of white dyes is 0.08% of polyhedral pigment particles.Add a small amount of titanate coupling agent, adopt high-energy ball milling method by powder mixture ball milling 2h, white dyes Homogeneous phase mixing is mixed in polyhedral pigment particles.
Embodiment 2
Adopt double-spiral conical mixer, it is that the powder of the white dyes KCB of 0.1% carries out mixing 1h that effects on surface attachment silverskin polyhedral pigment particles is made into slurry and content, after Homogeneous phase mixing under the condition of 105 DEG C dry 2h, finally obtain uniform mix products.
Embodiment 3
Fluoresent whitener CBS-127 and alcohol solvent are made into the solution that concentration is 1%, and adopt spray method to be sprayed on the surface of surface attachment copper film polyhedral pigment particles, control solution and polyhedral pigment particles mass ratio are 1: 10.Use vibrating motor to vibrate particle in spraying process, ensure the homogeneity of spraying.After spraying, dry 2h under mixture being placed on the condition of 85 DEG C, makes ethanol volatilize, and finally obtains uniform mix products.
Embodiment 4:
Use liquid-phase impregnation process, micro-nano quartz sand powder being immersed in concentration is in fluorescent whitening agent OB-1 ethanolic soln of 1%, filters, and in the baking oven of 85 DEG C, solvent is volatilized fast after 1h.The method can make white dyes be evenly distributed at particle surface, and the adhesion amount of white dyes is relevant with soak time, but cannot accomplish accurate control.
Embodiment 5:
In reactor, pass into nitrogen as shielding gas, add the polyhedral pigment particles of surface attachment TiN, and content is fluorescent whitening agent OB-1 powder of 0.12%.Be warming up to 450 DEG C in a kettle., fully contact with polyhedral pigment particles after white dyes is gasified, be attached to particle surface.
Embodiment 6:
To drop into by a certain percentage in synthesis reactor ω-chloromethyl phenyl benzoxazole and DMF, add micro-nano silicon carbide powder, sodium tert-butoxide is added when temperature drops to below 0 DEG C, after reaction 1.5h, adding a small amount of Glacial acetic acid makes pH value be about 7, after silicon carbide powder suction filtration, adopt distillation under vacuum to remove DMF solvent, the silicon carbide powder that attached to fluorescent whitening agent OB-1 can be obtained.Reaction process is as follows:
Embodiment 7
On the polyhedral pigment particles surface of surface attachment copper zinc alloy film, by vacuum thermal evaporation, by white dyes PB evaporation to polyhedron pigment particle surface.In evaporate process, the vacuum tightness maintaining vacuum chamber is 2 × 10
-3pa, puts into quartz crucible by white dyes, and slowly increase electric current to 10A, the evaporation time is 30s, is 5nm by the thickness of the known white dyes of thickness tester.Obtain the polyhedral pigment particles that attached to white dyes PB.
Claims (6)
1. a micro-nano powder material, is characterized in that: comprise substrate material, be coated on the outer field coating of substrate material and white dyes.
2. micro-nano powder material according to claim 1, is characterized in that: described fluorescent brightener levels is 0.08%-0.12%.
3. micro-nano powder material according to claim 1, is characterized in that: described white dyes is dibenzoxazine class, distyryl benzene type and distyryl biphenyl class whitening agent.
4. micro-nano powder material according to claim 1, is characterized in that: described substrate material is man-made glass, quartz sand, enamel, aluminium sesquioxide, aluminium nitride, calcite.
5. micro-nano powder material according to claim 1, is characterized in that: described in be coated on the outer field coating of substrate material be gold and silver, copper, iron, aluminium, titanium, zirconium.
6. prepare a method for micro-nano powder material, comprise the following steps:
(1) white dyes and organic solvent or water are configured to the solution that concentration is 0.8 ~ 2.5%;
(2) adopt the mode of spraying or liquid phase attachment that solution is attached to micro-nano powder surface, solution and micro-nano powder mass ratio are 0.5 ~ 1.2: 10;
(3) mixture is placed on the baking oven inner drying 1 ~ 2h of 80 ~ 95 DEG C, makes solvent evaporates, finally obtain the micro-nano powder material mixed containing white dyes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510380886.1A CN104893367A (en) | 2015-06-24 | 2015-06-24 | Fluorescent brightener-added micro/nano powder material and preparation method thereof |
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| CN201510380886.1A CN104893367A (en) | 2015-06-24 | 2015-06-24 | Fluorescent brightener-added micro/nano powder material and preparation method thereof |
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| CN104893367A true CN104893367A (en) | 2015-09-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108112A (en) * | 2020-12-30 | 2022-03-01 | 浙江青昀新材料科技有限公司 | Polyethylene sheet |
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2015
- 2015-06-24 CN CN201510380886.1A patent/CN104893367A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108112A (en) * | 2020-12-30 | 2022-03-01 | 浙江青昀新材料科技有限公司 | Polyethylene sheet |
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Application publication date: 20150909 |