CN109868054A - A kind of efficient nano coating and preparation method thereof for aluminum alloy mould plate - Google Patents
A kind of efficient nano coating and preparation method thereof for aluminum alloy mould plate Download PDFInfo
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- CN109868054A CN109868054A CN201910035103.4A CN201910035103A CN109868054A CN 109868054 A CN109868054 A CN 109868054A CN 201910035103 A CN201910035103 A CN 201910035103A CN 109868054 A CN109868054 A CN 109868054A
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Abstract
The invention belongs to aluminum alloy mould plate field of material technology, a kind of efficient nano coating and preparation method thereof for aluminum alloy mould plate are disclosed, by mass fraction, including 6-8 parts of modified Nano carbon fiber, nanometer Al2O38-10 parts, 15-20 parts of organic siliconresin, 20-25 parts of polyamide, 8-12 parts of soap oil, 0.2-0.6 parts of thickener, 10-30 parts of diesel oil.The present invention can be sprayed on the surface of aluminum alloy mould plate in aluminum alloy mould plate production plant, directly repeatedly use in construction site, greatly improve the construction efficiency of aluminum alloy mould plate.
Description
Technical field
The present invention relates to aluminum alloy mould plate field of material technology more particularly to a kind of efficient nanos for aluminum alloy mould plate
Coating and preparation method thereof.
Background technique
In building engineering construction, because of the green construction that country advocates, low-carbon construction facilitates aluminum alloy mould plate enterprise and answers
It transports and gives birth to, instead of the use of traditional plank sheathing, realize the demand of architectural industrialization.In aluminum alloy mould plate construction, aluminium is closed
Golden template is fixed concrete before concrete formation, and concrete again must form removal after forming some strength.Coagulation
Soil release agent is also known as template release agent or interleaving agent, be it is a kind of coating or be sprayed on template inner wall, in template and concrete table
Isolation and lubricating action are played between face, overcoming the cohesive force of template and concrete surface, make concrete can be in demoulding
It is successfully detached from the additive of template, not only kept concrete shape intactly but also protects template that will not damage.
Release agent classification is divided into solid-state, solution, lotion and paste by appearance；It is divided by function and effect disposable and long-acting
Property；According to chemical composition be divided into soaps, pure oils, water quality class, emulsification oils, solvent, polymerization species, chemical activity release agent,
Paint class and organic polymer class etc..Application No. is the patents of CN201510617176.6 to disclose a kind of nano-titanium dioxide increasing
Strong type concrete parting agent is made of the raw material of following parts by weight: 5-8 parts of nano-titanium dioxide, rosin glycerides 80-90
Part, 50-60 parts of polyether modified silicon oil, 15-20 parts of zeolite powder, 15-20 parts of volcanic soil, 12-18 parts of stearic amide, polyamide resin
10-15 parts of rouge, 10-15 parts of spaonin powder, 10-15 parts of soap oil, 8-12 parts of sapn, 6-10 parts of lubricating grease, 6-10 parts of rice bran wax, wine
4-7 parts of stone acid, 30-40 parts of mandarin oil, 300-350 parts of water.The made release agent of this patent has good demolding performace, can make mould
Plate is smoothly demoulded with concrete, and keeps concrete surface smooth, and corner angle are neatly lossless.
Although above-mentioned patent formula has reached good stripping result, it is being used in aluminum alloy mould plate construction
When, the every construction of aluminum alloy mould plate is primary, it is necessary to a release agent is brushed on aluminum alloy mould plate, can not multiple repetition make
With thus producing larger impact to the working efficiency of construction.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of for the efficient nano coating of aluminum alloy mould plate and its preparation side
Method, which can be sprayed on the surface of aluminum alloy mould plate in aluminum alloy mould plate production plant, directly in construction
Scene repeats, and greatly improves the construction efficiency of aluminum alloy mould plate.
The present invention solves above-mentioned technical problem by following technological means:
A kind of efficient nano coating for aluminum alloy mould plate, by mass fraction, including 6-8 parts of modified Nano carbon fiber,
Nanometer Al2O38-10 parts, 15-20 parts of organic siliconresin, 20-25 parts of polyamide, 8-12 parts of soap oil, thickener 0.2-0.6
Part, 10-30 parts of diesel oil.
Further, the coating further includes 3-5 parts of ultraviolet light screener, and the ultraviolet light screener is filled with nanometer
ZnO and nano-TiO2SiO2Porous microsphere.
Further, the coating includes 7 part, nanometer Al of modified Nano carbon fiber2O39 parts, 18 parts of organic siliconresin, polyamides
22 parts of polyimide resin, soap oily 10 parts, 0.4 part of thickener, 20 parts of diesel oil, 4 parts of ultraviolet light screener.
Further, the modified Nano carbon fiber is the modified Nano carbon fiber after the grafting of nanometer tetrafluoroethene, described to change
Property carbon nano-fiber length be 50-70 μm, the diameter of modified Nano carbon fiber is 100-150nm.
Further, the preparation method of the coating, comprising the following steps:
A1, to take 10-15 parts of length be 40-60 μm, diameter is that the dry carbon fiber of 80-130nm and 30-40 part of nitric acid mix
It closes, is handled 3-5 hours under the ultrasonic wave of 50-100kHz, be then heated to 100-150 DEG C, react 3-5 hours, make in stirring
It is washed with deionized, filters, be dried in vacuo 12-16 hours at a temperature of 100-120 DEG C, the carbon fiber being acidified；
A2, the acidification carbon fiber for obtaining step A1 are added in organic solvent and add 0.2-0.3 parts of condensing agents progress
Mixing, ultrasonication surpass with frequency 80kHz ultrasonic wave 20min, with frequency 100kHz ultrasonic wave 20min, with frequency 120kHz
Sound wave 20min is a cycle circular treatment 5-8 hours, after being reacted 12-24 hours at being 100-150 DEG C in temperature, addition two
First amine 1-2 parts and condensing agent 0.2-0.4 parts, then react 12-24 hours, obtain the carbon fiber solution for being grafted with amino；
10-15 parts of nanometer tetrafluoroethene powder and 2-3 parts of catalysis is added in A3, the carbon fiber solution for obtaining step A2
Agent is heated to 100-150 DEG C, and uses 120-150kHz ultrasonication 5-8 hours, and filter paper filters, in 100-120 DEG C of temperature
Lower vacuum drying 12-16 hours, obtains modified Nano carbon fiber；
A4, the modified Nano carbon fiber for obtaining step A3, are added in diesel oil, and organic siliconresin, polyamide is added
Resin, nanometer Al2O3, soap oil, thickener, be heated to 80-100 DEG C and stir evenly, obtain coating.
The principle of the invention: carbon fiber has high-intensitive, corrosion resistant performance, after being acidified grafted amino group, then with nanometer
Tetrafluoroethene carries out condensation reaction, obtains the modified carbon fiber of engrafted nanometer tetrafluoroethene, and nanometer tetrafluoroethene has antiacid alkali
With the performance of high-lubricity, nanometer tetrafluoroethene is grafted on carbon fiber, obtained modified Nano carbon fiber is provided with excellent
High intensity, corrosion resistance, alkali resistance and greasy property, and if desired the release agent of aluminum alloy mould plate can be reused,
Need the performance with high-intensitive, corrosion-resistant, alkali resistant and lubrication；Polyamide and organic siliconresin have excellent hot oxygen
Change stability and is widely used in the release agent industry of aluminum alloy mould plate also as the adhesive with aluminum alloy mould plate substrate；Nanometer
Al2O3With porosity, carbon nano-fiber molecule can be filled into a nanometer Al2O3In hole in, reduce carbon nano-fiber make
With loss in the process, so that aluminum alloy mould plate is longer using the time；Soap oil, can as a kind of hydrophobic type grease lubricant
So that lubricated with coating performance is more preferable；Diesel oil as a kind of organic solvent, you can be carried out to each ingredient of entire coating that
Dissolution；The addition of thickener can make coating have suitable viscosity.
In construction place, aluminum alloy mould plate is generally placed in the exposed environment of solar exposure for a long time, and contains in coating
There are the greasing substances such as resin, soap oil, the greasing substances such as resin and soap oil are influenced to hold very much in the environment being exposed to the sun by ultraviolet light
It easily decomposes, leads to reducing using the time for aluminum alloy mould plate coating, be added in coating and be filled with nano-ZnO and nano-TiO2's
SiO2Compound, wherein TiO2Have the function of stronger shielding ultraviolet rays with ZnO, can largely absorb ultraviolet in sunlight
Line reduces ultraviolet light to the catalytic decomposition of aluminum alloy mould plate coating, and silica has preferable wearability and weatherability, will
TiO2Rodlike porous structure SiO is filled in ZnO2, the access times for coating the aluminum alloy mould plate of this paint coatings can be extended.
Further, the preparation method of the ultraviolet light screener, comprising the following steps:
B1, the tetraethyl orthosilicate for taking 10-16 parts, are dissolved in diethyl ether solution, add 3-5 parts of polyethylene glycol and 4-
6 parts of polyoxyethylene-poly-oxypropylene polyoxyethylene stands 12-24 hours after mixing evenly, is then heated to 100-120 DEG C instead
After answering 12-16 hours, product is filtered into drying, 600-700 DEG C calcining 2-3 hours, the mesoporous SiO of corynebacterium is prepared2；
B2, the mesoporous SiO of the corynebacterium for taking 4-6 parts of step B2 to obtain2It is placed in container, is added water 20-30 parts, stirs evenly
Afterwards, 2-3 parts of nano-TiO is added2With 3-4 parts of ZnO, 10-20min is stirred in the same direction under the revolving speed of 80-100r/min, take out
Filter, is dried in vacuo at a temperature of 80-100 DEG C, obtains ultraviolet light screener.
Further, in the step B1, SiO mesoporous to corynebacterium2Carry out zinc grafting, comprising the following steps:
C1, the mesoporous SiO of corynebacterium obtained in step B1 is taken2, hydrochloric acid is added, is activated 10-15min under stiring；
C2, the SiO after activation is taken out2After clear water is rinsed well, the HF of 30-40 parts of 0.1-0.2mol/L is added in powder,
It is heated to 60-70 DEG C under the stirring of 30-80r/min, keeps 15min, obtains mixed liquor A；
C3, into mixed liquor A, the ZnCl of 0.1-0.2mol/L is added210-16 parts and 0.1-0.2mol/L of TBDPS is molten
15-20 parts of liquid, it is heated to 60-70 DEG C of temperature, obtains mixed liquid B；
C4, mixed liquid B is filtered dry, is dried in the environment of 40-50 DEG C, obtain zinc grafting SiO2。
In the mesoporous SiO of corynebacterium2Upper grafted metal Zn, this coating need to carry out 400 after spraying on aluminum alloy mould plate
DEG C high temperature baking, under high-temperature baking, metal Zn and aluminum alloy mould plate adherency it is tighter, can further increase ultraviolet light
The adhesion strength of screener and aluminum alloy mould plate, in demoulding, coating is not easy to fall off, further increases the aluminum alloy mould plate of coating
Access times.
Beneficial effects of the present invention:
It (1) include modified Nano carbon fiber, nanometer Al in coating of the invention2O3, organic siliconresin, polyamide, fertilizer
Soap oil, thickener, diesel fuel composition, the performance with high-intensitive, corrosion-resistant, alkali resistant and lubrication, and coating also has nanometer
ZnO and nano-TiO2SiO2Compound can resist catalysis point of the ultraviolet light to aluminum alloy mould plate coating as ultraviolet light screener
Solution extends the access times for coating the aluminum alloy mould plate of this paint coatings；
(2) ultraviolet light screener of the invention, the mesoporous SiO of corynebacterium being grafted using zinc2Load has ultraviolet screener
The TiO of function2And ZnO, it can further increase the adhesion strength of ultraviolet light screener and aluminum alloy mould plate, in demoulding, apply
Expect it is not easy to fall off, further increase coating coating aluminum alloy mould plate access times.
Specific embodiment
Embodiment 1,
The preparation of ultraviolet light screener carries out following steps:
B1, the tetraethyl orthosilicate for taking 13kg, are dissolved in diethyl ether solution, add the polyethylene glycol of 4kg and gathering for 5kg
Ethylene oxide-polyoxypropylene polyoxyethylene stands 16 hours after mixing evenly, is then heated to 100-120 DEG C and reacts 14 hours
Afterwards, product is filtered into drying, 600-700 DEG C calcine 2.5 hours, be prepared a length of 1.2-1.6 μm, width 300-400nm,
Aperture is the mesoporous SiO of corynebacterium of 3-8nm2；
B2, the mesoporous SiO of corynebacterium obtained in step B1 is taken2, the hydrochloric acid 25kg of 0.4mol/L is added, activates under stiring
Handle 10-15min；SiO after taking out activation2After clear water is rinsed well, the HF35kg of 0.1-0.2mol/L is added in powder,
It is heated to 60-70 DEG C under the stirring of 30-80r/min, keeps 15min, obtains mixed liquor A；Into mixed liquor A, 0.1- is added
The ZnCl of 0.2mol/L2The TBDPS solution 17.5kg of 13kg and 0.1-0.2mol/L, is heated to 60-70 DEG C of temperature, is mixed
Liquid B；Mixed liquid B is filtered dry, is dried in the environment of 40-50 DEG C, zinc grafting SiO is obtained2。
B3, the zinc for taking step B2 to obtain are grafted SiO25kg is placed in container, and water 20-30kg is added and adds after mixing evenly
Enter the nano-TiO of 2.5kg2With the ZnO of 3.5kg, 10-20min is stirred in the same direction under the revolving speed of 80-100r/min, filter paper filters,
It is dried in vacuo at a temperature of 80-100 DEG C, obtains ultraviolet light screener.
The preparation of modified Nano carbon fiber, carries out following steps:
A1, to take 12.5kg length be 40-60 μm, diameter is the dry carbon fiber of 80-130nm and the nitric acid mixing of 35kg,
It is handled 4 hours under the ultrasonic wave of 75kHz, is then heated to 100-150 DEG C, is reacted 4 hours in stirring, make to be washed with deionized water
It washs, filter paper filters, and is dried in vacuo 12-16 hours at a temperature of 100-120 DEG C, the carbon fiber being acidified；
A2, the acidification carbon fiber for obtaining step A1 are added in organic solvent and add condensing agent 0.25kg and mixed
It closes, with 120-150kHz ultrasonication 7 hours, after reacting 16 hours at being 100-150 DEG C in temperature, adds diamine
1.5kg and condensing agent 0.3kg, then react 12-24 hours, obtain the carbon fiber solution for being grafted with amino；
The catalysis of the nanometer tetrafluoroethene powder and 2.5kg of 12.5kg is added in A3, the carbon fiber solution for obtaining step A2
Agent, is heated to 100-150 DEG C, and uses 120-150kHz ultrasonication 7 hours, when ultrasonication, ultrasonic wave 80kHz,
100kHz and 120kHz cross processing, each frequency ultrasonic wave handle 20min, and filter paper filters, vacuum at a temperature of 100-120 DEG C
It is 14 hours dry, modified Nano carbon fiber is obtained, the length of the modified Nano carbon fiber so prepared is 50-70 μm, and modification is received
The diameter of rice carbon fiber is 100-150nm；
Embodiment 2 and embodiment 3
Embodiment 2 and embodiment 3 and embodiment 1 compare, and difference is only in that moieties have carried out following content
Variation；
| Substance | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tetraethyl orthosilicate | 13.0 | 10.0 | 16.0 |
| Polyethylene glycol | 4.0 | 3.0 | 5.0 |
| Polyoxyethylene-poly-oxypropylene polyoxyethylene | 5.0 | 4.0 | 6.0 |
| ZnCl2 | 13.0 | 10.0 | 16.0 |
| TBDPS | 17.5 | 15.0 | 20.0 |
| Zinc is grafted SiO2 | 5.0 | 4.0 | 6.0 |
| Nano-TiO2 | 2.5 | 2.0 | 3.0 |
| TiO2 | 3.5 | 3.0 | 4.0 |
| Carbon fiber | 12.5 | 10.0 | 15.0 |
| Diamine | 1.5 | 1.0 | 2.0 |
| Nanometer tetrafluoroethene | 12.5 | 10.0 | 15.0 |
Embodiment 4,
The preparation method of coating:
The modified Nano carbon fiber 6kg that step A3 in embodiment 1 is obtained, is added in the diesel oil of 10kg, and addition has
Machine silicone resin 15kg, polyamide 20kg, nanometer Al2O38kg, soap oil 8kg, thickener 0.2kg are heated to 90 DEG C of stirrings
Uniformly, coating is obtained.
Embodiment 5,
The preparation method of coating:
The modified Nano carbon fiber 7kg that step A3 in embodiment 1 is obtained, is added in the diesel oil of 20kg, and addition has
Machine silicone resin 17.5kg, polyamide 22.5kg, nanometer Al2O39kg, soap oil 10kg, thickener 0.4kg, are heated to 90 DEG C
It stirs evenly, obtains coating.
Embodiment 6,
Preparation method for coating:
The modified Nano carbon fiber 8kg that step A3 in embodiment 1 is obtained, is added in the diesel oil of 30kg, and addition has
Machine silicone resin 20kg, polyamide 25kg, nanometer Al2O310kg, soap oil 12kg, thickener 0.6kg, are heated to 90 DEG C and stir
It mixes uniformly, obtains coating.
Embodiment 7,
The modified Nano carbon fiber that step A3 in embodiment 1 is obtained takes modified Nano carbon fiber 7kg, is added to 20kg
Diesel oil in, and organic siliconresin 17.5kg, polyamide 22.5kg, nanometer Al is added2O39kg, soap oil 10kg, thickening
Ultraviolet light screener 4kg obtained in agent 0.4kg, embodiment 1 is heated to 90 DEG C and stirs evenly, obtains coating.
Embodiment 8,
The modified Nano carbon fiber that step A3 in embodiment 2 is obtained takes modified Nano carbon fiber 7kg, is added to 20kg
Diesel oil in, and organic siliconresin 17.5kg, polyamide 22.5kg, nanometer Al is added2O39kg, soap oil 10kg, thickening
Ultraviolet light screener 4kg obtained in agent 0.4kg, embodiment 2 is heated to 90 DEG C and stirs evenly, obtains coating.
Embodiment 9,
The modified Nano carbon fiber that step A3 in embodiment 3 is obtained takes modified Nano carbon fiber 7kg, is added to 20kg
Diesel oil in, and organic siliconresin 17.5kg, polyamide 22.5kg, nanometer Al is added2O39kg, soap oil 10kg, thickening
Ultraviolet light screener 4kg obtained in agent 0.4kg, embodiment 3 is heated to 90 DEG C and stirs evenly, obtains coating.
The coating that above-described embodiment 4- embodiment 9 is prepared by being coated on aluminum alloy mould plate, and carries out 400
After DEG C baking 10min, concrete demoulding test is carried out to obtained aluminum alloy mould plate, obtains following test data:
| Embodiment | Average aluminum alloy mould plate access times |
| Embodiment 4 | 176 |
| Embodiment 5 | 203 |
| Embodiment 6 | 168 |
| Embodiment 7 | 298 |
| Embodiment 8 | 254 |
| Embodiment 9 | 238 |
From above-mentioned test data it can be seen that
1, it can be seen that the ultraviolet light for adding this method in coating and preparing from the correlation data of embodiment 4- embodiment 7
Screener can greatly increase the access times of aluminum alloy mould plate.
2, it can be seen that from the correlation data of embodiment 7- embodiment 9 when formulation for coating material is in embodiment 7, aluminium alloy
The access times of template are most.
It therefore, include modified Nano carbon fiber, nanometer Al in coating of the invention2O3, organic siliconresin, polyamide,
Soap oil, thickener, diesel fuel composition, the performance with high-intensitive, corrosion-resistant, alkali resistant and lubrication, and coating, which also have, to be received
Rice ZnO and nano-TiO2SiO2Compound can resist catalysis of the ultraviolet light to aluminum alloy mould plate coating as ultraviolet light screener
It decomposes, extends the access times for coating the aluminum alloy mould plate of this paint coatings；And ultraviolet light screener of the invention, utilizes zinc
The mesoporous SiO of the corynebacterium of grafting2Load the TiO with function of shielding ultraviolet radiation2And ZnO, it can further increase ultraviolet screen
The adhesion strength for covering agent and aluminum alloy mould plate, in demoulding, coating is not easy to fall off, further increases the use time of aluminum alloy mould plate
Number.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, it can modify to technical solution of the present invention
Or equivalent replacement should all cover without departing from the objective and range of technical solution of the present invention in claim of the invention
In range.Technology not described in detail in the present invention, shape, construction portion are well-known technique.
Claims (7)
1. a kind of efficient nano coating for aluminum alloy mould plate, it is characterised in that: press mass fraction, including modified Nano carbon fiber
Tie up 6-8 parts, nanometer Al2O38-10 parts, 15-20 parts of organic siliconresin, 20-25 parts of polyamide, 8-12 parts of soap oil, thickening
0.2-0.6 parts of agent, 10-30 parts of diesel oil.
2. a kind of efficient nano coating for aluminum alloy mould plate according to claim 1, it is characterised in that: the coating
It further include 3-5 parts of ultraviolet light screener, the ultraviolet light screener is filled with nano-ZnO and nano-TiO2SiO2It is porous micro-
Ball.
3. a kind of efficient nano coating for aluminum alloy mould plate according to claim 2, it is characterised in that: the coating
Including 7 part, nanometer Al of modified Nano carbon fiber2O39 parts, 18 parts of organic siliconresin, 22 parts of polyamide, 10 parts of soap oil, increasing
Thick dose 0.4 part, 20 parts of diesel oil, 4 parts of ultraviolet light screener.
4. a kind of efficient nano coating for aluminum alloy mould plate according to claim 3, it is characterised in that: the modification
Carbon nano-fiber is the carbon fiber after the graft modification of nanometer tetrafluoroethene, and the length of the modified Nano carbon fiber is 50-70 μm,
The diameter of modified Nano carbon fiber is 100-150nm.
5. a kind of preparation method of efficient nano coating for aluminum alloy mould plate according to claim 4, feature exist
In: include the following steps,
A1, to take 10-15 parts of length be 40-60 μm, diameter is that the dry carbon fiber of 80-130nm and 30-40 part of nitric acid mix,
It is handled 3-5 hours under the ultrasonic wave of 50-100kHz, is then heated to 100-150 DEG C, is reacted 3-5 hours in stirring, using going
Ion water washing is filtered, is dried in vacuo 12-16 hours at a temperature of 100-120 DEG C, the carbon fiber being acidified；
A2, the acidification carbon fiber for obtaining step A1 are added in organic solvent and add 0.2-0.3 parts of condensing agents and mixed
Close, ultrasonication, with frequency 80kHz ultrasonic wave 20min, with frequency 100kHz ultrasonic wave 20min, with frequency 120kHz ultrasound
Wave 20min is a cycle circular treatment 5-8 hours, after reacting 12-24 hours at being 100-150 DEG C in temperature, adds binary
1-2 parts and condensing agent 0.2-0.4 parts of amine, then react 12-24 hours, obtain the carbon fiber solution for being grafted with amino；
10-15 parts of nanometer tetrafluoroethene powder and 2-3 parts of catalyst is added in A3, the carbon fiber solution for obtaining step A2,
It is heated to 100-150 DEG C, and is used 120-150kHz ultrasonication 5-8 hours, filter paper filters, at a temperature of 100-120 DEG C
Vacuum drying 12-16 hours, obtains modified Nano carbon fiber；
A4, the modified Nano carbon fiber for obtaining step A3, are added in diesel oil, and be added organic siliconresin, polyamide,
Nanometer Al2O3, soap oil, thickener, be heated to 80-100 DEG C and stir evenly, obtain coating.
6. a kind of efficient nano coating and preparation method thereof for aluminum alloy mould plate according to claim 5, feature
It is: the preparation method of the ultraviolet light screener, comprising the following steps:
B1, the tetraethyl orthosilicate for taking 10-16 parts, are dissolved in diethyl ether solution, add 3-5 parts polyethylene glycol and 4-6 parts
Polyoxyethylene-poly-oxypropylene polyoxyethylene, after mixing evenly stand 12-24 hours, be then heated to 100-120 DEG C of reaction
After 12-16 hours, product is filtered into drying, 600-700 DEG C calcining 2-3 hours, the mesoporous SiO of corynebacterium is prepared2；
B2, the mesoporous SiO of the corynebacterium for taking 4-6 parts of step B2 to obtain2It is placed in container, is added water 20-30 parts, after mixing evenly, adds
Enter 2-3 parts of nano-TiO2With 3-4 parts of ZnO, 10-20min is stirred in the same direction under the revolving speed of 80-100r/min, filter,
It is dried in vacuo at a temperature of 80-100 DEG C, obtains ultraviolet light screener.
7. a kind of efficient nano coating and preparation method thereof for aluminum alloy mould plate according to claim 6, feature
It is: in the step B1, SiO mesoporous to corynebacterium2Carry out zinc grafting, comprising the following steps:
C1, the mesoporous SiO of corynebacterium obtained in step B1 is taken2, hydrochloric acid is added, is activated 10-15min under stiring；
C2, the SiO after activation is taken out2After clear water is rinsed well, the HF of 30-40 parts of 0.1-0.2mol/L is added, in 30- in powder
It is heated to 60-70 DEG C under the stirring of 80r/min, keeps 15min, obtains mixed liquor A；
C3, into mixed liquor A, the ZnCl of 0.1-0.2mol/L is added210-16 parts and 0.1-0.2mol/L of TBDPS solution 15-
20 parts, it is heated to 60-70 DEG C of temperature, obtains mixed liquid B；
C4, mixed liquid B is filtered dry, is dried in the environment of 40-50 DEG C, obtain zinc grafting SiO2。
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| CN111549247A (en) * | 2020-06-09 | 2020-08-18 | 西安融烯科技新材料有限公司 | Method for preparing high-toughness aluminum alloy composite material and application thereof |
| CN111676395A (en) * | 2020-06-09 | 2020-09-18 | 西安融烯科技新材料有限公司 | Method for preparing low-thermal-expansion-rate aluminum alloy composite material and application thereof |
| CN112796506A (en) * | 2020-12-30 | 2021-05-14 | 重庆新久融科技有限公司 | Preparation method of high-strength easy-demoulding aluminum alloy template |
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| CN111549247B (en) * | 2020-06-09 | 2021-07-13 | 西安融烯科技新材料有限公司 | Method for preparing high-toughness aluminum alloy composite material |
| CN112796506A (en) * | 2020-12-30 | 2021-05-14 | 重庆新久融科技有限公司 | Preparation method of high-strength easy-demoulding aluminum alloy template |
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