CN108715695A - A kind of preparation method of the special pearl powder of aqueous automobile grade coating of high durable - Google Patents
A kind of preparation method of the special pearl powder of aqueous automobile grade coating of high durable Download PDFInfo
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- CN108715695A CN108715695A CN201810349052.8A CN201810349052A CN108715695A CN 108715695 A CN108715695 A CN 108715695A CN 201810349052 A CN201810349052 A CN 201810349052A CN 108715695 A CN108715695 A CN 108715695A
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- 239000000843 powder Substances 0.000 title claims abstract description 63
- 239000011248 coating agent Substances 0.000 title claims abstract description 27
- 238000000576 coating method Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000010445 mica Substances 0.000 claims abstract description 24
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000007822 coupling agent Substances 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 8
- 239000010931 gold Substances 0.000 claims description 7
- 229910052737 gold Inorganic materials 0.000 claims description 7
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000049 pigment Substances 0.000 abstract description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000967 suction filtration Methods 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052681 coesite Inorganic materials 0.000 abstract description 3
- 229910052593 corundum Inorganic materials 0.000 abstract description 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 229910052682 stishovite Inorganic materials 0.000 abstract description 3
- 229910052905 tridymite Inorganic materials 0.000 abstract description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract description 3
- 238000001354 calcination Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 2
- 150000004706 metal oxides Chemical class 0.000 abstract 2
- 238000005034 decoration Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 238000005253 cladding Methods 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Classifications
-
- 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
- C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
-
- 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
-
- 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
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/043—Drying, calcination
-
- 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
- C09C3/06—Treatment with inorganic compounds
- C09C3/063—Coating
-
- 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
- C09C3/12—Treatment with organosilicon compounds
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
-
- 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
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
-
- 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
- C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
- C09C2200/10—Interference pigments characterized by the core material
- C09C2200/102—Interference pigments characterized by the core material the core consisting of glass or silicate material like mica or clays, e.g. kaolin
-
- 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
- C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
- C09C2200/40—Interference pigments comprising an outermost surface coating
- C09C2200/402—Organic protective coating
- C09C2200/407—Organosilicon materials, e.g. silanes, silicones
-
- 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
- C09C2220/00—Methods of preparing the interference pigments
- C09C2220/10—Wet methods, e.g. co-precipitation
- C09C2220/106—Wet methods, e.g. co-precipitation comprising only a drying or calcination step of the finally coated pigment
Abstract
The present invention relates to a kind of preparation methods of the special pearl powder of aqueous automobile grade coating of high durable, it coats SnO with the mica surface with certain grain size distribution2、TiO2、Fe2O3A series of common pearlescent pigments are made in equal metal oxides, using Al2O3/SiO2/ZnO2Pearlescent pigment surface is coated Deng stable metal oxide, the pearl powder base material of high durable is obtained using suction filtration, washing, drying, calcining, surface modification is carried out to pigment with organo-silicon coupling agent again, obtains that there is the high weather resistant water-thinned special pearl powder of automotive grade coating using suction filtration, Xian Di, drying.Reasonable design of the present invention, easy to operate, low energy consumption, function admirable, environmental protection, is suitable for mass producing, be suitable for automobile, exterior decoration etc. weatherability is required, the higher occasion of environmental requirement.
Description
Technical field
The invention belongs to pigment technology fields, and in particular to a kind of special pearl powder of aqueous automobile grade coating of high durable
Preparation method.
Background technology
Currently, superior automobile application is mainly oleaginous system with pearl powder, and it has the following disadvantages and is：
Production cost is higher：Traditional automotive grade Weather-resistant pearlescent powder is produced, mica is coated by hydrolysis first, filter, is forged
It burns, sieve obtained common pearl powder after powder, mixing, then common pearl powder is put into reaction kettle and coats property stabilization, can inhale
Metal, the nonmetal oxide of ultraviolet light are received, after filtering drying, then coats the organic matter helped to disperse；In this process,
It is wanted in 2 input reaction kettles after common pearl powder is made, 2 claddings, 2 suction filtration drying, process is complicated, and cost is higher；
Weather-proof effect is not outstanding enough：Metal, the nonmetal oxide that property is stable, can absorb ultraviolet light are coated to pearly-lustre
Behind powder surface, not by calcining, clad is not fine and close enough, and and TiO2/Fe2O3Interlayer structure also defective tightness, easily formed
Gap influences weatherability and continuous stability；
Not environmentally：Traditional automotive grade pearl powder is used to oleaginous system, in order to enhance dispersion of the pearl powder in oil systems
Property, it will usually there is the organo-silicon coupling agent of oleophilic drainage in pearl powder external sheath, after coating such coupling agent, pearly-lustre
Powder mobility is too strong, easily airborne dust, pollutes environment.
Increasingly attention with country to environmental protection, car paint Water-borne modification is with through being a kind of trend；
Invention content
In view of the deficiencies of the prior art, the present invention is intended to provide a kind of special pearl powder of aqueous automobile grade coating of high durable
Preparation method.
The technical scheme is that a kind of preparation method of the special pearl powder of aqueous automobile grade coating of high durable, it
Include the following steps：
A) it takes mica powder to put into beaker, pure water is added, is placed in thermostat water bath and heats, stir simultaneously, mica is made
Slurry；
B) HCl is added into mica slurry made from step a) to adjust pH value to 1.5-1.7, waits for that pH value, temperature, rotating speed are steady
After fixed, SnCl is at the uniform velocity added dropwise4Solution continues to stir after being added dropwise；
C) TiOCl is added to 2.0, then with certain charging rate in the pH value that solution is adjusted with diluted alkaline2Solution feeds to light
Gold interference form and aspect, add and continue to stir；
D) it adjusts pH value to 3.3 slowly with diluted alkaline, then FeCl is added dropwise with certain speed3Solution is added to RK300 gold form and aspect
After continue to stir；
E) it adjusts pH value to 5.5 slowly with diluted alkaline, AlCl is added dropwise3, it is 5.5 that diluted alkaline, which is added, and keeps pH value, continues to stir after adding；
F) it adjusts pH value to 7.5 slowly with diluted alkaline, ZnCl is then added2Solution, it is 7.5 to keep pH value with diluted alkaline, is added subsequent
Continuous stirring；
G) NaSiO is added3Dope continues to stir after adding；
H) solution is filtered, after drying, 800 DEG C are calcined 30 minutes, and high durable gold pearl powder is obtained；
I) it takes high durable pearl powder made from step g) to put into beaker, pure water is added, stir, heating is added organic
Silicone couplet, stir about 2 hours, filter, after drying up to the special pearl powder of aqueous automobile grade coating of high durable.
Further, temperature of each step in above-mentioned steps a) to step f) at 70 DEG C~75 DEG C, rotating speed 250
It is carried out under~400 revs/min of mixing speed, and adds that continue the time of stirring after material be 5-15 minutes in each step.
Further, the granularity of mica powder is 10-40 mesh in above-mentioned steps a)；The mass ratio that mica powder and water is added is 1:
8 to 1: 12.
Further, a concentration of the 10% of the HCl being added in above-mentioned steps b)；SnCl is added dropwise4Amount be step a) medium clouds
The 0.2%-1.0% of female powder quality；SnCl is added dropwise4Time used is 1-2 hours.
Further, the NaOH that PH is 5%-15% with diluted alkaline is adjusted in above-mentioned steps c) to step f).
Further, the TiOCl being added in above-mentioned steps c)2A concentration of 420g/L of solution, addition speed are 45ml/h.
Further, FeCl is added during above-mentioned step is poly- d)3A concentration of 130g/L of solution, addition speed are 45ml/h.
Further, in above-mentioned steps e)：AlCl is added dropwise3Amount be mica powder quality in step a) 2%-8.0%.
Further, ZnCl is added in above-mentioned steps f)2Amount be mica powder quality in step a) 2%-8.0%.
Further, NaSiO is added in above-mentioned steps g)3Amount be the 2%-8.0% for being mica powder quality in step a)；
NaSiO is added3The about 1h of time used in solution.
Further, the mass ratio of high durable gold pearl powder and pure water is 1: 8 to 1: 12 in above-mentioned steps i)；Stirring
Rotating speed is 250 turns -400 revs/min；The temperature of heating is 70 DEG C~75 DEG C；The amount of the organo-silicon coupling agent of addition is in step a)
The 1%-2.0% of mica powder quality.
The advance of the method for the present invention is：
1) production cost reduces, and production efficiency improves：Using the technique of primary cladding Weather-resistant pearlescent powder, mica cladding
SnO2/Fe2O3/TiO2, weather-proof auxiliary agent is directly coated, to prepare the hydrolysis cladding that feeds intake again after pearl powder weather-proof compared to traditional
Substance can reduce process, improve production efficiency, reduce energy consumption and water consumption, substantially reduce pilot process, effectively reduce at
This；
2) weather resistance is improved：The method of cladding provided by the invention, the weather-proof auxiliary agent of cladding, have passed through high-temperature calcination,
The crystallization water can be effectively removed, obtains fine and close oxide coating, and the common weather-proof pearl of traditional weather-proof substance of secondary cladding
The method for coating of light powder, because being dried by 120 DEG C or so temperature, the weather-proof substance in surface layer, which contains, largely to be born water, in conjunction with
It is not fine and close enough, the weatherability of pearlescent pigment can be effectively promoted compared to traditional method to which the present invention mentions method for coating
Energy；The method of the present invention is related to ZnO2/SiO2/Al2O3Mixture enveloping, SnO is continuously coated by mica2/Fe2O3/TiO2
Afterwards, then ZnO is coated2/Al2O3/SiO2Mixture, using high-temperature calcination, in Fe2O3/TiO2Outer layer is split into fine and close protection
Layer improves the weather resistance of pearlescent pigment to greatest extent；Compared to traditional a kind or 2 kinds of mixture envelopings, pearlescent pigment
Weather resistance enhancing is more obvious；
3) dispersibility and stability of the pigment in water-based system are improved：By coating hydrophilic dredge to pearlescent pigment surface
The organo-silicon coupling agent of oil, is surface-treated pearl powder so that pearl powder has excellent hydrophilic and oleophobic performance, Neng Gouyou
The hydrophilicity of effect enhancing face pigment so that for pearlescent pigment in water-base resin system, dispersion is more uniform, and sedimentation is more slow
Slowly, formation is precipitated as soft precipitation, and jog can be re-dispersed into system, facilitate construction, furthermore contribute to be formed more
Add uniform coating, enhances the water resistance of paint film；For aqueous automobile grade coating.
Specific implementation mode
In order to make those skilled in the art more fully understand the present invention, With reference to embodiment to the present invention make into
One step is described in detail.
Embodiment 1
It takes 100g 10-40 mesh mica powders to put into 2000L beakers, 1000ml pure water is added, is placed in water-bath,
72 DEG C are warming up to, adjustment rotating speed is to 300 revs/min, after temperature stabilization, adjusts pH value to 1.5 with 10% hydrochloric acid, waits for that pH value is steady
After fixed, 2 hours SnCl for being added dropwise to 100ml 5g/L4Solution, while dropping liquid aqueous slkali keeps pH value 1.5, SnCl4It is added dropwise
After, it stirs 10 minutes, then the TiOCl of 420g/L is at the uniform velocity added2Solution speed is 45ml/h, charging to light golden interference colours
Phase is stirred 10 minutes, slow to adjust pH value to 3.3, then the FeCl3 solution RK300 gold form and aspect of 150g/L are instilled with the average rate of 45ml/h,
It after adding, stirs 10 minutes, adjusts pH value to 5.5, the AlCl of 150g/L is added dropwise within an hour3Solution 40ml solution, is kept with lye
PH value is constant 5.5, adds and stirs 10 minutes, slow to adjust pH value to 7.5, and the ZnCl of 146g/L is added within an hour2Solution 40ml,
It adds and stirs 10 minutes, the sodium silicate solution 50ml of 0.5mol/L is added within an hour, adds and stirs 10 minutes, filter, after drying,
800 degree are burnt 30 minutes to get high durable gold pearl powder, are taken 100 grams of high durable pearl powders, are put into 2000ml beakers, add
Enter pure water 1000ml, adjustment rotating speed is warming up to 72 DEG C to 300 revs/min, after temperature stabilization, is added at one time organosilicon coupling
Agent 2ml, after stirring 2 hours, up to the special pearl powder of high durable hydrophily car paint after suction filtration, drying.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes will be apparent from for the those of ordinary skill in art field.Therefore, protection scope of the present invention is answered
This is subject to the protection scope in claims.
Claims (11)
1. a kind of preparation method of the special pearl powder of aqueous automobile grade coating of high durable, which is characterized in that it includes following step
Suddenly：
A) it takes mica powder to put into beaker, pure water is added, is placed in thermostat water bath and heats, stir simultaneously, mica slurry is made；
B) HCl is added into mica slurry made from step a) to adjust pH value to 1.5-1.7, waits for pH value, temperature, stabilization of speed
Afterwards, SnCl is at the uniform velocity added dropwise4Solution continues to stir after being added dropwise；
C) TiOCl is added to 2.0, then with certain charging rate in the pH value that solution is adjusted with diluted alkaline2Solution, charging are dry to light gold
Form and aspect are related to, adds and continues to stir；
D) it adjusts pH value to 3.3 slowly with diluted alkaline, then FeCl is added dropwise with certain speed3Solution adds subsequent to RK300 gold form and aspect
Continuous stirring；
E) it adjusts pH value to 5.5 slowly with diluted alkaline, AlCl is added dropwise3, while it is 5.5 that diluted alkaline, which is added, to keep pH value, continues to stir after adding；
F) it adjusts pH value to 7.5 slowly with diluted alkaline, ZnCl is then added2Solution, while it is 7.5 to keep pH value with diluted alkaline, is continued after adding
Stirring；
G) NaSiO is added3Dope continues to stir after adding；
H) solution is filtered, after drying, 800 DEG C are calcined 30 minutes, and high durable gold pearl powder is obtained；
I) it takes high durable gold pearl powder made from step h) to put into beaker, pure water is added, stir, heating is added organic
Silicone couplet, stir about 2 hours, filter, after drying up to the special pearl powder of aqueous automobile grade coating of high durable.
2. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, which is characterized in that
Temperature at 70 DEG C~75 DEG C of each step in the step a) to step g), the stirring that rotating speed is 250~400 revs/min
It is carried out under speed, and adds that continue the time of stirring after material be 5-15 minutes in each step.
3. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, which is characterized in that
The granularity of mica powder is 10-40 mesh in the step a)；The mass ratio of mica powder and water is 1: 8 to 1: 12.
4. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, which is characterized in that
A concentration of the 10% of the HCl being added in the step b)；SnCl is added dropwise4Amount be mica powder quality in step a) 0.2%-
1.0%；SnCl is added dropwise4Time used is 1-2 hours.
5. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, which is characterized in that
The NaOH that PH is 5%-15% with diluted alkaline is adjusted in the step c) to step f).
6. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, which is characterized in that
The TiOCl being added in the step c)2A concentration of 380-440g/L of solution, addition speed are 35-48ml/h.
7. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, which is characterized in that
The FeCl being added in the step d)3A concentration of 100-160g/L of solution, addition speed are 35-48ml/h.
8. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, which is characterized in that
In the step e)：AlCl is added dropwise3Amount be mica powder quality in step a) 2%-8.0%.
9. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, which is characterized in that
ZnCl is added in the step f)2Amount be mica powder quality in step a) 2%-80%.
10. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, feature exist
In addition NaSiO in the step g)3Amount be the 2%-8.0% for being mica powder quality in step a)；NaSiO is added3Solution
Time used about 1h.
11. the preparation method of the special pearl powder of aqueous automobile grade coating of high durable as described in claim 1, feature exist
In the mass ratio of high durable gold pearl powder and pure water is 1: 8 to 1: 12 in the step i)；The rotating speed of stirring be 250 turns-
400 revs/min；The temperature of heating is 70 DEG C -75 DEG C；The amount of the organo-silicon coupling agent of addition is mica powder quality in step a)
1%-2.0%.
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| CN109776964A (en) * | 2019-01-29 | 2019-05-21 | 杭州纳尔森精细化工有限公司 | A kind of metallized thread, its production method and purposes |
| CN111995884A (en) * | 2020-08-27 | 2020-11-27 | 河北欧克新型材料股份有限公司 | Production process of color-changing pearlescent pigment |
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| US20100270510A1 (en) * | 2007-12-19 | 2010-10-28 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Intensely coloured and/or optically variable pigments having an electrically conductive core |
| CN102741359A (en) * | 2010-02-04 | 2012-10-17 | 默克专利股份有限公司 | Effect pigments |
| CN107325589A (en) * | 2017-07-05 | 2017-11-07 | 江苏贝丽得新材料有限公司 | A kind of glittering Gold production effect pearlescent pigment of high-purity titanium ferroalloy and preparation method thereof |
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| US20100270510A1 (en) * | 2007-12-19 | 2010-10-28 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Intensely coloured and/or optically variable pigments having an electrically conductive core |
| CN102741359A (en) * | 2010-02-04 | 2012-10-17 | 默克专利股份有限公司 | Effect pigments |
| CN107325589A (en) * | 2017-07-05 | 2017-11-07 | 江苏贝丽得新材料有限公司 | A kind of glittering Gold production effect pearlescent pigment of high-purity titanium ferroalloy and preparation method thereof |
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| CN109776964A (en) * | 2019-01-29 | 2019-05-21 | 杭州纳尔森精细化工有限公司 | A kind of metallized thread, its production method and purposes |
| CN111995884A (en) * | 2020-08-27 | 2020-11-27 | 河北欧克新型材料股份有限公司 | Production process of color-changing pearlescent pigment |
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