CN109762368A - A kind of preparation method of purplish red pearly-lustre aluminium powder pigment - Google Patents
A kind of preparation method of purplish red pearly-lustre aluminium powder pigment Download PDFInfo
- Publication number
- CN109762368A CN109762368A CN201910137518.2A CN201910137518A CN109762368A CN 109762368 A CN109762368 A CN 109762368A CN 201910137518 A CN201910137518 A CN 201910137518A CN 109762368 A CN109762368 A CN 109762368A
- Authority
- CN
- China
- Prior art keywords
- reaction kettle
- filter cake
- flake aluminum
- aluminium powder
- added
- 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.)
- Pending
Links
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
A kind of preparation method of purplish red pearly-lustre aluminium powder pigment, its feature is the following steps are included: carry out cleaning to flake aluminum first and with coated with silica, then surface cladding is carried out with other materials, the sodium hydroxide solution that liquor ferri trichloridi and concentration are 20~25% is added in system simultaneously, surface cladding is carried out to flake matrix material；It is filtered, washs, filter cake is dried at 125~140 DEG C, calcining 1 hour is then carried out at 480~580 DEG C, obtains purplish red pearly-lustre aluminium powder pigment.
Description
Technical field
The present invention relates to a kind of preparation methods of purplish red pearly-lustre aluminium powder pigment.
Background technique
Flake aluminum is also known as Aluminum Pigment or coating aluminium powder, is important one of metal-powder.Flake aluminum be purposes most
The most a kind of metallic pigments of wide kind.It is mainly used in coating, plastics and printing ink area.It is coatings industry, especially
It is that car paint application field greatly pushes flake aluminum to advance.Flake aluminum passes through at special surface modification
Reason, the referred to as colored aluminium powder of the flake aluminum of available colour, colored aluminium powder not only have the optical property of common aluminium powder, also have
Colored is bright-coloured, the characteristic that the common aluminium powder such as corrosion resistance, resistance to optical activity, good weatherability does not have.Colored aluminium powder is applied to coating
Industry can generate the characteristic that the common aluminium powder such as special changeable colors along with angle effect does not have, meet the esthetic requirement of people and to more
The pursuit of coloured silkization.
Aluminium pigment with special sclay texture causes unique aesthetic effect and anti-corrosive properties and good gold because of it
Belong to effect, be well received by consumers, is widely used in building coating, printing ink, automobile finish and Plastics Processing Industry etc.
Field is to develop very fast, most widely used one kind in numerous metallic pigments.As the improvement of people's living standards, market is to height
The demand of quality, high-grade pigment gradually increases, but aluminium powder pigment color is single, makes its answering in some high-grade finishing coat fields
With being restricted.Since 20 beginnings of the century, the research about colored aluminium powder just has begun in foreign countries, in recent years, colorful aluminium
The development and exploitation of powder pigment gradually start active at home.Colorful aluminium powder pigment is a kind of sheet by surface modification treatment
Aluminium powder pigment not only with the metallic luster of aluminium powder, but also has chromatic colour.
A kind of preparation method of purplish red pearly-lustre aluminium powder pigment, feature is the following steps are included: first carry out flake aluminum
Cleaning and with coated with silica, then carries out surface cladding with other materials；Flake aluminum is cleaned and is used silica
Cladding: being put into the acetone of 900 parts by weight in the reaction kettle with reflux condensate device, opens stirring, is added into reaction kettle
180 parts by weight of flake aluminum of 20 μm of partial size, radius-thickness ratio 80, start to warm up, and acetone carries out reflux condensation mode after coming to life, and keep
It boiling reflux condensing state 2 hours, is filtered, deionized water washing, obtains the clean flake aluminum filter cake of surface clean；Instead
It answers kettle to be put into the deionized water of 2400 parts by weight, opens stirring, be added into reaction kettle and above-mentioned obtain the clean piece of surface clean
Shape aluminium powder filter cake, starts to warm up, and when temperature reaches 85 DEG C, starts to keep the temperature, and is first adjusted to the pH value of system with sodium silicate solution
9.0~9.5, the sulfuric acid solution that sodium silicate solution and concentration are 15% is added in reaction kettle simultaneously then, is begun in adition process
The pH value for keeping system eventually is to 9.0~9.5, and the addition total amount of sodium silicate solution is 400~450 parts by volume, sodium silicate solution
Concentration be 1.0 mol/Ls, control sodium silicate solution and 15% sulfuric acid solution the addition time be 2~3 hours, addition finishes
Heat preservation 30 minutes, opens cooling water and cools down to reaction kettle, when temperature is down to 50 DEG C hereinafter, be filtered, wash, obtains surface
The flake aluminum filter cake of coated silica；
Flake aluminum surface other materials method for coating: reaction kettle is put into the deionized water of 2200 parts by weight, opens stirring, to anti-
It answers and the above-mentioned flake aluminum filter cake for obtaining surface coated silica is added in kettle, start to warm up, when temperature reaches 83~87 DEG C
When, start to keep the temperature, the pH value of system is first adjusted to 4.5~5.5 with liquor ferri trichloridi, then by liquor ferri trichloridi and concentration
It is added in reaction kettle simultaneously for 20~25% sodium hydroxide solution, remains that the pH value of system is to 4.5 in adition process
~5.5, the addition total amount of liquor ferri trichloridi is 1100~1200 parts by volume, controls the hydrogen of liquor ferri trichloridi and 20~25%
The addition time of sodium hydroxide solution is 10~15 hours, and addition finishes heat preservation 30 minutes, opens cooling water and cools down to reaction kettle,
When temperature is down to 50 DEG C hereinafter, be filtered, wash, purplish red pearly-lustre aluminium powder pigment filter cake is obtained；By filter cake at 125~140 DEG C
Under be dried, then carried out at 480~580 DEG C calcining 1 hour, obtain purplish red pearly-lustre aluminium powder pigment；The tri-chlorination
The concentration of ferrous solution is 1.5 mol/Ls.
Innovative point of the present invention: first cleaning flake aluminum, because can be in aluminium powder table in production of aluminum powder process
Hydrophobic surfactant is added in face, so having to the surfactant of removal aluminium powder surface hydrophobicity before cladding；Then
It is in order to make aluminium surface cover a upper protective layer, because coating with the purpose of coated with silica with coated with silica
Journey is carried out in certain pH value, and aluminium is more sensitive to soda acid, and flake aluminum can make it under the action of soda acid
Surface staining；Finally surface cladding is carried out with other materials.
Summary of the invention
A kind of preparation method of purplish red pearly-lustre aluminium powder pigment, feature is the following steps are included: first carry out flake aluminum
Cleaning and with coated with silica, then carries out surface cladding with other materials；Flake aluminum is cleaned and is used silica
Cladding: being put into the acetone of 900 parts by weight in the reaction kettle with reflux condensate device, opens stirring, is added into reaction kettle
180 parts by weight of flake aluminum of 20 μm of partial size, radius-thickness ratio 80, start to warm up, and acetone carries out reflux condensation mode after coming to life, and keep
It boiling reflux condensing state 2 hours, is filtered, deionized water washing, obtains the clean flake aluminum filter cake of surface clean；Instead
It answers kettle to be put into the deionized water of 2400 parts by weight, opens stirring, be added into reaction kettle and above-mentioned obtain the clean piece of surface clean
Shape aluminium powder filter cake, starts to warm up, and when temperature reaches 85 DEG C, starts to keep the temperature, and is first adjusted to the pH value of system with sodium silicate solution
9.0~9.5, the sulfuric acid solution that sodium silicate solution and concentration are 15% is added in reaction kettle simultaneously then, is begun in adition process
The pH value for keeping system eventually is to 9.0~9.5, and the addition total amount of sodium silicate solution is 400~450 parts by volume, sodium silicate solution
Concentration be 1.0 mol/Ls, control sodium silicate solution and 15% sulfuric acid solution the addition time be 2~3 hours, addition finishes
Heat preservation 30 minutes, opens cooling water and cools down to reaction kettle, when temperature is down to 50 DEG C hereinafter, be filtered, wash, obtains surface
The flake aluminum filter cake of coated silica；
Flake aluminum surface other materials method for coating: reaction kettle is put into the deionized water of 2200 parts by weight, opens stirring, to anti-
It answers and the above-mentioned flake aluminum filter cake for obtaining surface coated silica is added in kettle, start to warm up, when temperature reaches 83~87 DEG C
When, start to keep the temperature, the pH value of system is first adjusted to 4.5~5.5 with liquor ferri trichloridi, then by liquor ferri trichloridi and concentration
It is added in reaction kettle simultaneously for 20~25% sodium hydroxide solution, remains that the pH value of system is to 4.5 in adition process
~5.5, the addition total amount of liquor ferri trichloridi is 1100~1200 parts by volume, controls the hydrogen of liquor ferri trichloridi and 20~25%
The addition time of sodium hydroxide solution is 10~15 hours, and addition finishes heat preservation 30 minutes, opens cooling water and cools down to reaction kettle,
When temperature is down to 50 DEG C hereinafter, be filtered, wash, purplish red pearly-lustre aluminium powder pigment filter cake is obtained；
Filter cake is dried at 125~140 DEG C, calcining 1 hour is then carried out at 480~580 DEG C, obtains purplish red pearly-lustre
Aluminium powder pigment；
The concentration of the liquor ferri trichloridi is 1.5 mol/Ls.
Specific embodiment
Embodiment 1
It is put into the acetone of 900kg in the reaction kettle with reflux condensate device, opens stirring, partial size 20 is added into reaction kettle
μm, the flake aluminum 180kg of radius-thickness ratio 80, start to warm up, acetone carries out reflux condensation mode after coming to life, keep boiling reflux cold
It solidifying state 2 hours, is filtered, deionized water washing, obtains the clean flake aluminum filter cake of surface clean；Reaction kettle is put into
The deionized water of 2400kg, open stirring, be added into reaction kettle it is above-mentioned obtain the clean flake aluminum filter cake of surface clean, open
Begin to heat up, when temperature reaches 85 DEG C, starts to keep the temperature, the pH value of system is first adjusted to 9.0 with sodium silicate solution, then by silicic acid
The sulfuric acid solution that sodium solution and concentration are 15% is added in reaction kettle simultaneously, remains that the pH value of system is in adition process
To 9.0, the addition total amount of sodium silicate solution is 400 liters, and the concentration of sodium silicate solution is 1.0 mol/Ls, controls sodium silicate solution
The addition time with 15% sulfuric acid solution is 2 hours, and addition finishes heat preservation 30 minutes, opens cooling water and cools down to reaction kettle,
When temperature is down to 50 DEG C hereinafter, be filtered, wash, the flake aluminum filter cake of surface coated silica is obtained；
It discharges water the deionized water of 2200kg toward reaction kettle, opens stirring, be added into reaction kettle and above-mentioned obtain surface cladding dioxy
The flake aluminum filter cake of SiClx, starts to warm up, and when temperature reaches 83 DEG C, starts to keep the temperature, first with liquor ferri trichloridi by system
PH value be adjusted to 4.5, then the sodium hydroxide solution that liquor ferri trichloridi and concentration are 20% is added in reaction kettle simultaneously,
The pH value that system is remained in adition process is to 4.5, and the addition total amount of liquor ferri trichloridi is 1100 liters, and ferric trichloride is molten
The concentration of liquid be 1.5 mol/Ls, control liquor ferri trichloridi and 20% sodium hydroxide solution the addition time be 10 hours, add
Enter to finish heat preservation 30 minutes, open cooling water and reaction kettle is cooled down, when temperature is down to 50 DEG C hereinafter, be filtered, wash, obtains
To purplish red pearly-lustre aluminium powder pigment filter cake；
Filter cake is dried at 125 DEG C, calcining 1 hour is then carried out at 480 DEG C, obtains purplish red pearly-lustre aluminium powder pigment.
Embodiment 2
It is put into the acetone of 900kg in the reaction kettle with reflux condensate device, opens stirring, partial size 20 is added into reaction kettle
μm, the flake aluminum 180kg of radius-thickness ratio 80, start to warm up, acetone carries out reflux condensation mode after coming to life, keep boiling reflux cold
It solidifying state 2 hours, is filtered, deionized water washing, obtains the clean flake aluminum filter cake of surface clean；Reaction kettle is put into
The deionized water of 2400kg, open stirring, be added into reaction kettle it is above-mentioned obtain the clean flake aluminum filter cake of surface clean, open
Begin to heat up, when temperature reaches 85 DEG C, starts to keep the temperature, the pH value of system is first adjusted to 9.5 with sodium silicate solution, then by silicic acid
The sulfuric acid solution that sodium solution and concentration are 15% is added in reaction kettle simultaneously, remains that the pH value of system is in adition process
To 9.5, the addition total amount of sodium silicate solution is 450 liters, and the concentration of sodium silicate solution is 1.0 mol/Ls, controls sodium silicate solution
The addition time with 15% sulfuric acid solution is 3 hours, and addition finishes heat preservation 30 minutes, opens cooling water and cools down to reaction kettle,
When temperature is down to 50 DEG C hereinafter, be filtered, wash, the flake aluminum filter cake of surface coated silica is obtained；
It discharges water the deionized water of 2200kg toward reaction kettle, opens stirring, be added into reaction kettle and above-mentioned obtain surface cladding dioxy
The flake aluminum filter cake of SiClx, starts to warm up, and when temperature reaches 87 DEG C, starts to keep the temperature, first with liquor ferri trichloridi by system
PH value be adjusted to 5.5, then the sodium hydroxide solution that liquor ferri trichloridi and concentration are 20% is added in reaction kettle simultaneously,
The pH value that system is remained in adition process is to 5.5, and the addition total amount of liquor ferri trichloridi is 1200 liters, and ferric trichloride is molten
The concentration of liquid be 1.5 mol/Ls, control liquor ferri trichloridi and 20% sodium hydroxide solution the addition time be 15 hours, add
Enter to finish heat preservation 30 minutes, open cooling water and reaction kettle is cooled down, when temperature is down to 50 DEG C hereinafter, be filtered, wash, obtains
To purplish red pearly-lustre aluminium powder pigment filter cake；
Filter cake is dried at 140 DEG C, calcining 1 hour is then carried out at 480~580 DEG C, obtains purplish red pearly-lustre aluminium powder
Pigment.
Embodiment 3
It is put into the acetone of 900kg in the reaction kettle with reflux condensate device, opens stirring, partial size 20 is added into reaction kettle
μm, the flake aluminum 180kg of radius-thickness ratio 80, start to warm up, acetone carries out reflux condensation mode after coming to life, keep boiling reflux cold
It solidifying state 2 hours, is filtered, deionized water washing, obtains the clean flake aluminum filter cake of surface clean；Reaction kettle is put into
The deionized water of 2400kg, open stirring, be added into reaction kettle it is above-mentioned obtain the clean flake aluminum filter cake of surface clean, open
Begin to heat up, when temperature reaches 85 DEG C, starts to keep the temperature, the pH value of system is first adjusted to 9.2 with sodium silicate solution, then by silicic acid
The sulfuric acid solution that sodium solution and concentration are 15% is added in reaction kettle simultaneously, remains that the pH value of system is in adition process
To 9.2, the addition total amount of sodium silicate solution is 425 liters, and the concentration of sodium silicate solution is 1.0 mol/Ls, controls sodium silicate solution
The addition time with 15% sulfuric acid solution is 2.5 hours, and addition finishes heat preservation 30 minutes, and it is cold to reaction kettle progress to open cooling water
But, when temperature is down to 50 DEG C hereinafter, be filtered, wash, the flake aluminum filter cake of surface coated silica is obtained；
It discharges water the deionized water of 2200kg toward reaction kettle, opens stirring, be added into reaction kettle and above-mentioned obtain surface cladding dioxy
The flake aluminum filter cake of SiClx, starts to warm up, and when temperature reaches 85 DEG C, starts to keep the temperature, first with liquor ferri trichloridi by system
PH value be adjusted to 4.3, then the sodium hydroxide solution that liquor ferri trichloridi and concentration are 20% is added in reaction kettle simultaneously,
The pH value that system is remained in adition process is to 4.3, and the addition total amount of liquor ferri trichloridi is 1150 liters, and ferric trichloride is molten
The concentration of liquid be 1.5 mol/Ls, control liquor ferri trichloridi and 20% sodium hydroxide solution the addition time be 13 hours, add
Enter to finish heat preservation 30 minutes, open cooling water and reaction kettle is cooled down, when temperature is down to 50 DEG C hereinafter, be filtered, wash, obtains
To purplish red pearly-lustre aluminium powder pigment filter cake；
Filter cake is dried at 130 DEG C, calcining 1 hour is then carried out at 520 DEG C, obtains purplish red pearly-lustre aluminium powder pigment.
Embodiment 4
It is put into the acetone of 900kg in the reaction kettle with reflux condensate device, opens stirring, partial size 20 is added into reaction kettle
μm, the flake aluminum 180kg of radius-thickness ratio 80, start to warm up, acetone carries out reflux condensation mode after coming to life, keep boiling reflux cold
It solidifying state 2 hours, is filtered, deionized water washing, obtains the clean flake aluminum filter cake of surface clean；Reaction kettle is put into
The deionized water of 2400kg, open stirring, be added into reaction kettle it is above-mentioned obtain the clean flake aluminum filter cake of surface clean, open
Begin to heat up, when temperature reaches 85 DEG C, starts to keep the temperature, the pH value of system is first adjusted to 9.1 with sodium silicate solution, then by silicic acid
The sulfuric acid solution that sodium solution and concentration are 15% is added in reaction kettle simultaneously, remains that the pH value of system is in adition process
To 9.1, the addition total amount of sodium silicate solution is 410 liters, and the concentration of sodium silicate solution is 1.0 mol/Ls, controls sodium silicate solution
The addition time with 15% sulfuric acid solution is 3 hours, and addition finishes heat preservation 30 minutes, opens cooling water and cools down to reaction kettle,
When temperature is down to 50 DEG C hereinafter, be filtered, wash, the flake aluminum filter cake of surface coated silica is obtained；
It discharges water the deionized water of 2200kg toward reaction kettle, opens stirring, be added into reaction kettle and above-mentioned obtain surface cladding dioxy
The flake aluminum filter cake of SiClx, starts to warm up, and when temperature reaches 84 DEG C, starts to keep the temperature, first with liquor ferri trichloridi by system
PH value be adjusted to 4.4, then the sodium hydroxide solution that liquor ferri trichloridi and concentration are 20% is added in reaction kettle simultaneously,
The pH value that system is remained in adition process is to 4.4, and the addition total amount of liquor ferri trichloridi is 1160 liters, and ferric trichloride is molten
The concentration of liquid be 1.5 mol/Ls, control liquor ferri trichloridi and 20% sodium hydroxide solution the addition time be 14 hours, add
Enter to finish heat preservation 30 minutes, open cooling water and reaction kettle is cooled down, when temperature is down to 50 DEG C hereinafter, be filtered, wash, obtains
To purplish red pearly-lustre aluminium powder pigment filter cake；
Filter cake is dried at 138 DEG C, calcining 1 hour is then carried out at 510 DEG C, obtains purplish red pearly-lustre aluminium powder pigment.
Embodiment 5
It is put into the acetone of 900kg in the reaction kettle with reflux condensate device, opens stirring, partial size 20 is added into reaction kettle
μm, the flake aluminum 180kg of radius-thickness ratio 80, start to warm up, acetone carries out reflux condensation mode after coming to life, keep boiling reflux cold
It solidifying state 2 hours, is filtered, deionized water washing, obtains the clean flake aluminum filter cake of surface clean；Reaction kettle is put into
The deionized water of 2400kg, open stirring, be added into reaction kettle it is above-mentioned obtain the clean flake aluminum filter cake of surface clean, open
Begin to heat up, when temperature reaches 85 DEG C, starts to keep the temperature, the pH value of system is first adjusted to 9.4 with sodium silicate solution, then by silicic acid
The sulfuric acid solution that sodium solution and concentration are 15% is added in reaction kettle simultaneously, remains that the pH value of system is in adition process
To 9.4, the addition total amount of sodium silicate solution is 430 liters, and the concentration of sodium silicate solution is 1.0 mol/Ls, controls sodium silicate solution
The addition time with 15% sulfuric acid solution is 2 hours, and addition finishes heat preservation 30 minutes, opens cooling water and cools down to reaction kettle,
When temperature is down to 50 DEG C hereinafter, be filtered, wash, the flake aluminum filter cake of surface coated silica is obtained；
It discharges water the deionized water of 2200kg toward reaction kettle, opens stirring, be added into reaction kettle and above-mentioned obtain surface cladding dioxy
The flake aluminum filter cake of SiClx, starts to warm up, and when temperature reaches 86 DEG C, starts to keep the temperature, first with liquor ferri trichloridi by system
PH value be adjusted to 4.5, then the sodium hydroxide solution that liquor ferri trichloridi and concentration are 20% is added in reaction kettle simultaneously,
The pH value that system is remained in adition process is to 4.5, and the addition total amount of liquor ferri trichloridi is 1180 liters, and ferric trichloride is molten
The concentration of liquid be 1.5 mol/Ls, control liquor ferri trichloridi and 20% sodium hydroxide solution the addition time be 13 hours, add
Enter to finish heat preservation 30 minutes, open cooling water and reaction kettle is cooled down, when temperature is down to 50 DEG C hereinafter, be filtered, wash, obtains
To purplish red pearly-lustre aluminium powder pigment filter cake；
Filter cake is dried at 133 DEG C, calcining 1 hour is then carried out at 500 DEG C, obtains purplish red pearly-lustre aluminium powder pigment.
Embodiment 6
It is put into the acetone of 900kg in the reaction kettle with reflux condensate device, opens stirring, partial size 20 is added into reaction kettle
μm, the flake aluminum 180kg of radius-thickness ratio 80, start to warm up, acetone carries out reflux condensation mode after coming to life, keep boiling reflux cold
It solidifying state 2 hours, is filtered, deionized water washing, obtains the clean flake aluminum filter cake of surface clean；Reaction kettle is put into
The deionized water of 2400kg, open stirring, be added into reaction kettle it is above-mentioned obtain the clean flake aluminum filter cake of surface clean, open
Begin to heat up, when temperature reaches 85 DEG C, starts to keep the temperature, the pH value of system is first adjusted to 9.5 with sodium silicate solution, then by silicic acid
The sulfuric acid solution that sodium solution and concentration are 15% is added in reaction kettle simultaneously, remains that the pH value of system is in adition process
To 9.5, the addition total amount of sodium silicate solution is 430 liters, and the concentration of sodium silicate solution is 1.0 mol/Ls, controls sodium silicate solution
The addition time with 15% sulfuric acid solution is 3 hours, and addition finishes heat preservation 30 minutes, opens cooling water and cools down to reaction kettle,
When temperature is down to 50 DEG C hereinafter, be filtered, wash, the flake aluminum filter cake of surface coated silica is obtained；
It discharges water the deionized water of 2200kg toward reaction kettle, opens stirring, be added into reaction kettle and above-mentioned obtain surface cladding dioxy
The flake aluminum filter cake of SiClx, starts to warm up, and when temperature reaches 87 DEG C, starts to keep the temperature, first with liquor ferri trichloridi by system
PH value be adjusted to 5.2, then the sodium hydroxide solution that liquor ferri trichloridi and concentration are 20% is added in reaction kettle simultaneously,
The pH value that system is remained in adition process is to 5.2, and the addition total amount of liquor ferri trichloridi is 1160 liters, and ferric trichloride is molten
The concentration of liquid be 1.5 mol/Ls, control liquor ferri trichloridi and 20% sodium hydroxide solution the addition time be 15 hours, add
Enter to finish heat preservation 30 minutes, open cooling water and reaction kettle is cooled down, when temperature is down to 50 DEG C hereinafter, be filtered, wash, obtains
To purplish red pearly-lustre aluminium powder pigment filter cake；
Filter cake is dried at 128 DEG C, calcining 1 hour is then carried out at 490 DEG C, obtains purplish red pearly-lustre aluminium powder pigment.
Claims (1)
1. a kind of preparation method of purplish red pearly-lustre aluminium powder pigment, feature is the following steps are included: first carry out flake aluminum clear
Coated with silica is washed and used, then carries out surface cladding with other materials；Flake aluminum carries out cleaning and with silica packet
It covers: being put into the acetone of 900 parts by weight in the reaction kettle with reflux condensate device, open stirring, grain is added into reaction kettle
180 parts by weight of flake aluminum of 20 μm of diameter, radius-thickness ratio 80, start to warm up, and acetone carries out reflux condensation mode after coming to life, and keep boiling
It rises reflux condensation mode state 2 hours, is filtered, deionized water washing, obtains the clean flake aluminum filter cake of surface clean；Reaction
Kettle is put into the deionized water of 2400 parts by weight, opens stirring, is added into reaction kettle and above-mentioned obtains the clean sheet of surface clean
Aluminium powder filter cake, starts to warm up, and when temperature reaches 85 DEG C, starts to keep the temperature, and the pH value of system is first adjusted to 9.0 with sodium silicate solution
~9.5, then the sulfuric acid solution that sodium silicate solution and concentration are 15% is added in reaction kettle simultaneously, in adition process always
The pH value of holding system is to 9.0~9.5, and the addition total amount of sodium silicate solution is 400~450 parts by volume, sodium silicate solution
Concentration be 1.0 mol/Ls, control sodium silicate solution and 15% sulfuric acid solution the addition time be 2~3 hours, addition finish guarantor
Temperature 30 minutes, opens cooling water and cools down to reaction kettle, when temperature is down to 50 DEG C hereinafter, be filtered, wash, obtains surface packet
Cover the flake aluminum filter cake of silica；
Flake aluminum surface other materials method for coating: reaction kettle is put into the deionized water of 2200 parts by weight, opens stirring, to anti-
It answers and the above-mentioned flake aluminum filter cake for obtaining surface coated silica is added in kettle, start to warm up, when temperature reaches 83~87 DEG C
When, start to keep the temperature, the pH value of system is first adjusted to 4.5~5.5 with liquor ferri trichloridi, then by liquor ferri trichloridi and concentration
It is added in reaction kettle simultaneously for 20~25% sodium hydroxide solution, remains that the pH value of system is to 4.5 in adition process
~5.5, the addition total amount of liquor ferri trichloridi is 1100~1200 parts by volume, controls the hydrogen of liquor ferri trichloridi and 20~25%
The addition time of sodium hydroxide solution is 10~15 hours, and addition finishes heat preservation 30 minutes, opens cooling water and cools down to reaction kettle,
When temperature is down to 50 DEG C hereinafter, be filtered, wash, purplish red pearly-lustre aluminium powder pigment filter cake is obtained；
Filter cake is dried at 125~140 DEG C, calcining 1 hour is then carried out at 480~580 DEG C, obtains purplish red pearly-lustre
Aluminium powder pigment；
The concentration of the liquor ferri trichloridi is 1.5 mol/Ls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137518.2A CN109762368A (en) | 2019-02-25 | 2019-02-25 | A kind of preparation method of purplish red pearly-lustre aluminium powder pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137518.2A CN109762368A (en) | 2019-02-25 | 2019-02-25 | A kind of preparation method of purplish red pearly-lustre aluminium powder pigment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109762368A true CN109762368A (en) | 2019-05-17 |
Family
ID=66457203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910137518.2A Pending CN109762368A (en) | 2019-02-25 | 2019-02-25 | A kind of preparation method of purplish red pearly-lustre aluminium powder pigment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109762368A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538995A (en) * | 2001-08-02 | 2004-10-20 | Ĭ��ר���ɷ�����˾ | Highly anti-corrosive metal pigments |
| CN101445675A (en) * | 2008-12-12 | 2009-06-03 | 温州亦柏化工有限公司 | Colored aluminum pigment with high color depth and preparation method thereof |
| CN105153762A (en) * | 2015-09-10 | 2015-12-16 | 江南大学 | Preparation method of multicolor aluminum composite pigment |
-
2019
- 2019-02-25 CN CN201910137518.2A patent/CN109762368A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538995A (en) * | 2001-08-02 | 2004-10-20 | Ĭ��ר���ɷ�����˾ | Highly anti-corrosive metal pigments |
| CN101445675A (en) * | 2008-12-12 | 2009-06-03 | 温州亦柏化工有限公司 | Colored aluminum pigment with high color depth and preparation method thereof |
| CN105153762A (en) * | 2015-09-10 | 2015-12-16 | 江南大学 | Preparation method of multicolor aluminum composite pigment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101541009B1 (en) | Colored glazed pigments using natural dye and method of manufacturing the same | |
| CN105755800B (en) | A kind of heat-reflective coating cloth | |
| CN102391695B (en) | Stone protective film nanometer material and preparation method thereof | |
| CN109692797A (en) | A kind of preparation method of aluminum veneer | |
| CN105297105A (en) | Ceramic anodizing process for frosted glaze of aluminum alloy | |
| CN104194406A (en) | Preparation method of nanometer oxide composite pigment | |
| CN102127321A (en) | Method for preparing gold pearlescent pigment with high hue and high brightness | |
| CN102732068B (en) | Method for carrying out SiO2/Fe2O3 composite cladding on surface of aluminum powder | |
| CN109679380A (en) | A kind of preparation method of green pearly-lustre aluminium powder pigment | |
| CN109666313A (en) | A kind of preparation method of corrosion resistant hydrate colour aluminium pigment | |
| CN105256355A (en) | Aluminum alloy mirror surface glazed ceramic anodic oxidation process | |
| CN109762368A (en) | A kind of preparation method of purplish red pearly-lustre aluminium powder pigment | |
| CN107117872B (en) | Super-hydrophobic colorful lacquer coating of one kind and preparation method thereof | |
| CN1324077C (en) | Fluoro phlogopite pearlescent pigment and method for making same | |
| CN101479214A (en) | Composition for coloring ceramic articles | |
| CN112063296A (en) | High-hardness fireproof hydrophobic stone-like ceramic coating, and preparation process and application thereof | |
| AU2012275785B2 (en) | Treated inorganic pigments having reduced photoactivity and improved anti-microbial properties and their use in coating compositions | |
| CN100420721C (en) | Pearl light pigment for external use | |
| CN103992668B (en) | Aluminum alloy umbrella skeleton surface coating as well as preparation and application method thereof | |
| CN109054457A (en) | Black pearlescent pigment and its preparation method and application | |
| CN106867280A (en) | Iron system pearlescent pigment of high chroma high brightness based on synthetic mica and its production and use | |
| CN103849179A (en) | High-temperature-resistant colorful aluminium pigment | |
| CN1133351A (en) | Aluminium and aluminium alloy decoration plate and making method | |
| CN100462407C (en) | Production of cobalt-titanium series random chromo pigment | |
| CN108752978A (en) | A kind of green phase gold pearlescent pigment and its preparation method and application based on synthetic mica |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190517 |
|
| RJ01 | Rejection of invention patent application after publication |