CN108192486A - A kind of graphene molecules sieve coated aluminum foil and preparation method thereof - Google Patents
A kind of graphene molecules sieve coated aluminum foil and preparation method thereof Download PDFInfo
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- 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
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- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
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- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
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- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
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Abstract
The present invention provides a kind of graphene molecules sieve coated aluminum foil, including aluminium base and graphite ene coatings, the at least side of the aluminium base is equipped with graphite ene coatings, graphite ene coatings are made of 3 10 parts of 50 70 parts of graphene mother liquor, 20 35 parts of molecular sieve, 5 15 parts of filler and adhesive, it counts in parts by weight, the aluminium foil service life length, good corrosion resistance, strong adhesive force, ductility are good, cycling processability is good and improves the conductivity of aluminium, and preferably heat dissipation, antiseptic property still can be kept after also having the advantages that processing.
Description
Technical field
The present invention relates to coated aluminum foil Material Field more particularly to a kind of graphene molecules sieve coated aluminum foil and its preparation sides
Method.
Background technology
With the development of science and technology, heat dissipation, anti-corrosion suffer from great demand in every field.Aluminum material, which has, to be dissipated
The features such as thermogravimetric amount is light, perfect heat-dissipating, good energy-conserving effect reproducible utilization.In fields such as heat dissipation, heat preservation, external decorations because its is excellent
Performance more is widely used in：Machinery, automobile, wind-power electricity generation, engineering machinery, air compressor machine, railway locomotive, household electrical appliance etc.
Industry field.
But it since aluminium foil has higher chemism, easily corrodes in air, in general occasion service life
It is very short, the defects of in order to overcome aluminium foil itself, while also retain original performance of aluminium foil, by aluminium foil coating function apply
Material, and the purposes for further expanding aluminium foil is the direction that everybody makes great efforts at present.
It is to coat a coating in aluminium foil surface to take most methods at present.Graphene is as novel two-dimensional material, tool
There is the features such as good electric conductivity, thermal conductivity, mechanical performance, low-resistivity, become research hotspot at present, be widely used.
Graphene is dissolved in after solvent and is prepared into slurry coated on aluminium base surface, can play the role of protecting aluminium base, and improve electricity
Conductance.But graphite ene coatings are after hardening due to having a higher specific surface area, and aluminium foil is smooth metal surface, common
Binding agent is difficult that the two is carried out good bond, coating is made easily to come off, and antiseptic property is poor, furthermore since coating and aluminium base connect
Connect it is insecure, cause section contact defective tightness, influenced electric conductivity indirectly.
Invention content
The technical problem to be solved by the present invention is to overcome the defects of the prior art, provide a kind of graphene molecules sieve coating aluminium
Foil, while propose the preparation method of graphene molecules sieve coated aluminum foil；Aluminium foil service life length, good corrosion resistance, the attachment
Power is strong, ductility is good, and cycling processability is good and improves the conductivity of aluminium, still can keep preferably dissipating after also having processing
The advantages of heat, antiseptic property.
In order to solve the above technical problems, a kind of graphene molecules sieve coated aluminum foil of the present invention, applies including aluminium base and graphene
Layer, at least side of the aluminium base are equipped with graphite ene coatings, wherein, graphite ene coatings are made of following composition, in parts by weight
Meter：
50-70 parts of graphene mother liquor
20-35 parts of molecular sieve
5-15 parts of filler
3-10 parts of adhesive.
A kind of above-mentioned graphene molecules sieve coated aluminum foil, wherein, the graphene mother liquor is by nanoscale graphite alkene and dispersant
Composition, nanoscale graphite alkene：Dispersant is 0.5：2, by weight；The dispersant is by polyacrylamide, three nitrogen of benzo
Azoles, acrylic acid, ethyl alcohol, diethanol amine and water composition, polyacrylamide：Benzotriazole：Acrylic acid：Ethyl alcohol：Diethanol amine：Water
It is 1：0.8：1.5：2：1, by weight.
A kind of above-mentioned graphene molecules sieve coated aluminum foil, wherein, the filler by silica, bentonite, aluminium oxide,
Diatomite and miberal powder composition；Silica：Bentonite：Aluminium oxide：Miberal powder is 1：1.5：0.8：1.2：0.6, by weight.
A kind of above-mentioned graphene molecules sieve coated aluminum foil, wherein, the molecular sieve selects the long cosmos chemicals in Shanghai limited
The activated molecular sieve of company's production.
A kind of above-mentioned graphene molecules sieve coated aluminum foil, wherein, described adhesive is by polymethacrylates, polyethylene
Alcohol, methyl diphenylene diisocyanate, water and ethyl acetate composition, polymethacrylates：Polyvinyl alcohol：Diphenyl methane
Diisocyanate：Water：Ethyl acetate is 1：0.8：0.8：1.5：1, by weight.
A kind of preparation method of above-mentioned graphene molecules sieve coated aluminum foil, includes the following steps：
Step 1 prepares graphene mother liquor, and dispersant is added in nanoscale graphite alkene, carries out ultrasonic oscillation and forms mother liquor, surpasses
Frequency of sound wave is 10~30kHZ, shakes time 0.5-3 hour；Nanoscale graphite alkene：Dispersant is 0.5：2, by weight
Than meter；The dispersant is made of polyacrylamide, benzotriazole, acrylic acid, ethyl alcohol, diethanol amine and water, polyacrylamide
Amine：Benzotriazole：Acrylic acid：Ethyl alcohol：Diethanol amine：Water is 1：0.8：1.5：2：1, by weight.
Step 2 mixes polymethacrylates, polyvinyl alcohol, methyl diphenylene diisocyanate, water and ethyl acetate
Conjunction stirs evenly, and forms adhesive；Polymethacrylates：Polyvinyl alcohol：Methyl diphenylene diisocyanate：Water：Acetic acid second
Ester is 1：0.8：0.8：1.5：1, by weight；
Silica, bentonite, aluminium oxide, diatomite and miberal powder are mixed evenly step 3, are then heated to 500 DEG C
Heat preservation 1h makes its activation afterwards, after being cooled to room temperature, then is freezed, and cryogenic temperature is -50 DEG C, and cooling time is this hour,
Place into grinding equipment carry out ultra-fine grinding to particle in 100nm hereinafter, be passed through nitrogen when milling, be stirred for uniformly, being formed
Filler；
Step 4: graphene mother liquor, molecular sieve, filler and adhesive are mixed evenly to form mixed liquor；
Step 5: coating curing, step 4 acquisition mixed liquor is uniformly coated in aluminium base, then carries out baking and curing；Institute
Hardening time is stated as 30~75s, solidification temperature is：It 220~260 DEG C, is dried in tunnel machine.
Beneficial effects of the present invention：The present invention by carrying out special process reprocessing respectively to aluminium base and graphite ene coatings,
In the compound oiliness of aluminium foil surface so that this composite material service life length, good corrosion resistance, strong adhesive force, ductility are good, then
Processing performance is good, improves the conductivity of aluminium, and preferably heat dissipation, antiseptic property still can be kept after also having the advantages that processing.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Specific embodiment
The specific embodiment of the present invention is furtherd elucidate below in conjunction with the accompanying drawings.
With reference to Fig. 1, a kind of graphene molecules of the invention sieve coated aluminum foil, including aluminium base 1 and graphite ene coatings 2,
At least side of the aluminium base 1 is equipped with graphite ene coatings 2, wherein 1 thickness of the aluminium base is 0.02~0.5mm, institute
It is 1~20 μm to state 2 thickness of graphite ene coatings.The present embodiment preferably, is designed in the both sides up and down of the aluminium base 1
Graphite ene coatings 2.Aluminium base preferred thickness be 0.1-0.3mm, 5-10 μm of 2 preferred thickness of graphite ene coatings.
Embodiment 1
A kind of graphene molecules sieve coated aluminum foil, and step 1 prepares graphene mother liquor, and dispersant is added in nanoscale graphite alkene,
It carries out ultrasonic oscillation and forms mother liquor, ultrasonic frequency is 10 HZ, shakes 0.5 hour time；Nanoscale graphite alkene：Dispersion
Agent is 0.5：2, by weight；The dispersant by polyacrylamide, benzotriazole, acrylic acid, ethyl alcohol, diethanol amine and
Water forms, polyacrylamide：Benzotriazole：Acrylic acid：Ethyl alcohol：Diethanol amine：Water is 1：0.8：1.5：2：1, by weight
Meter；Polymethacrylates, polyvinyl alcohol, methyl diphenylene diisocyanate, water and ethyl acetate are mixed step 2
Uniformly, adhesive is formed；Polymethacrylates：Polyvinyl alcohol：Methyl diphenylene diisocyanate：Water：Ethyl acetate is 1：
0.8：0.8：1.5：1, by weight；Silica, bentonite, aluminium oxide, diatomite and miberal powder are mixed step 3
Uniformly, 1h is kept the temperature after being then heated to 500 DEG C makes its activation, after being cooled to room temperature, then is freezed, and cryogenic temperature is -50
DEG C, cooling time be this hour, place into grinding equipment carry out ultra-fine grinding to particle in 100nm hereinafter, being passed through when milling
Nitrogen is stirred for uniformly, forming filler；Step 4: by 50 parts of graphene mother liquor, 20 parts of molecular sieve, 5 parts of filler and adhesive 3
Part is mixed evenly to form mixed liquor；
Step 5: coating curing, step 4 acquisition mixed liquor is uniformly coated in aluminium base, then carries out baking and curing；Institute
Hardening time is stated as 30s, solidification temperature is：It 220 DEG C, is dried in tunnel machine.
Embodiment 2
A kind of graphene molecules sieve coated aluminum foil, and step 1 prepares graphene mother liquor, and dispersant is added in nanoscale graphite alkene,
It carries out ultrasonic oscillation and forms mother liquor, ultrasonic frequency 15kHZ shakes 3 hours time；Nanoscale graphite alkene：Dispersant
It is 0.5：2, by weight；The dispersant is by polyacrylamide, benzotriazole, acrylic acid, ethyl alcohol, diethanol amine and water
Composition, polyacrylamide：Benzotriazole：Acrylic acid：Ethyl alcohol：Diethanol amine：Water is 1：0.8：1.5：2：1, by weight；
Step 2 polymethacrylates, polyvinyl alcohol, methyl diphenylene diisocyanate, water and ethyl acetate is mixed equal
It is even, form adhesive；Polymethacrylates：Polyvinyl alcohol：Methyl diphenylene diisocyanate：Water：Ethyl acetate is 1：
0.8：0.8：1.5：1, by weight；Silica, bentonite, aluminium oxide, diatomite and miberal powder are mixed step 3
Uniformly, 1h is kept the temperature after being then heated to 500 DEG C makes its activation, after being cooled to room temperature, then is freezed, and cryogenic temperature is -50
DEG C, cooling time be this hour, place into grinding equipment carry out ultra-fine grinding to particle in 100nm hereinafter, being passed through when milling
Nitrogen is stirred for uniformly, forming filler；Step 4: by 55 parts of graphene mother liquor, 25 parts of molecular sieve, 8 parts of filler and adhesive 6
Part is mixed evenly to form mixed liquor；
Step 5: coating curing, step 4 acquisition mixed liquor is uniformly coated in aluminium base, then carries out baking and curing；Institute
Hardening time is stated as 50s, solidification temperature is：It 240 DEG C, is dried in tunnel machine.
Embodiment 3
A kind of graphene molecules sieve coated aluminum foil, and step 1 prepares graphene mother liquor, and dispersant is added in nanoscale graphite alkene,
It carries out ultrasonic oscillation and forms mother liquor, ultrasonic frequency 20kHZ shakes 2.5 hours time；Nanoscale graphite alkene：Dispersion
Agent is 0.5：2, by weight；The dispersant by polyacrylamide, benzotriazole, acrylic acid, ethyl alcohol, diethanol amine and
Water forms, polyacrylamide：Benzotriazole：Acrylic acid：Ethyl alcohol：Diethanol amine：Water is 1：0.8：1.5：2：1, by weight
Meter；Polymethacrylates, polyvinyl alcohol, methyl diphenylene diisocyanate, water and ethyl acetate are mixed step 2
Uniformly, adhesive is formed；Polymethacrylates：Polyvinyl alcohol：Methyl diphenylene diisocyanate：Water：Ethyl acetate is 1：
0.8：0.8：1.5：1, by weight；Silica, bentonite, aluminium oxide, diatomite and miberal powder are mixed step 3
Uniformly, 1h is kept the temperature after being then heated to 500 DEG C makes its activation, after being cooled to room temperature, then is freezed, and cryogenic temperature is -50
DEG C, cooling time be this hour, place into grinding equipment carry out ultra-fine grinding to particle in 100nm hereinafter, being passed through when milling
Nitrogen is stirred for uniformly, forming filler；Step 4: by 60 parts of graphene mother liquor, 25 parts of molecular sieve, 10 parts of filler and adhesive 8
Part is mixed evenly to form mixed liquor；
Step 5: coating curing, step 4 acquisition mixed liquor is uniformly coated in aluminium base, then carries out baking and curing；Institute
Hardening time is stated as 60s, solidification temperature is：It 240 DEG C, is dried in tunnel machine.
Embodiment 4
A kind of graphene molecules sieve coated aluminum foil, and step 1 prepares graphene mother liquor, and dispersant is added in nanoscale graphite alkene,
It carries out ultrasonic oscillation and forms mother liquor, ultrasonic frequency 30kHZ shakes 3 hours time；Nanoscale graphite alkene：Dispersant is
0.5：2, by weight；The dispersant is by polyacrylamide, benzotriazole, acrylic acid, ethyl alcohol, diethanol amine and water group
Into polyacrylamide：Benzotriazole：Acrylic acid：Ethyl alcohol：Diethanol amine：Water is 1：0.8：1.5：2：1, by weight；Step
Rapid two, polymethacrylates, polyvinyl alcohol, methyl diphenylene diisocyanate, water and ethyl acetate are mixed evenly,
Form adhesive；Polymethacrylates：Polyvinyl alcohol：Methyl diphenylene diisocyanate：Water：Ethyl acetate is 1：0.8：
0.8：1.5：1, by weight；Step 3 silica, bentonite, aluminium oxide, diatomite and miberal powder is mixed equal
Even, 1h is kept the temperature after being then heated to 500 DEG C makes its activation, after being cooled to room temperature, then is freezed, and cryogenic temperature is -50
DEG C, cooling time be this hour, place into grinding equipment carry out ultra-fine grinding to particle in 100nm hereinafter, being passed through when milling
Nitrogen is stirred for uniformly, forming filler；Step 4: by 70 parts of graphene mother liquor, 35 parts of molecular sieve, 15 parts of filler and adhesive
10 parts are mixed evenly to form mixed liquor；Step 5: coating curing, aluminium base is uniformly coated on by step 4 acquisition mixed liquor
On, then carry out baking and curing；The hardening time is 75s, and solidification temperature is：It 260 DEG C, is dried in tunnel machine.
Graphite ene coatings conductivity produced by the present invention is 3 .4 × 104, and the electric conductivity of aluminium foil can promote 45%, attached
Put forth effort >=three-level, resistance to 75% ethyl alcohol >=48 hour, resistance to 5%NaOH >=55 hour, resistance to 5%H2SO4 >=50 hour,
Resistance to 15% saline solution >=65 hour, hardness 3.5H, abrasion resistance index is at 4500 turns or more.
The present invention by carrying out special process reprocessing respectively to aluminium base and graphene coating material so that adhesive force of the present invention
By force, ductility is good, and cycling processability is good, and preferably heat dissipation, antiseptic property still can be kept after also having the advantages that processing.
It can be that professional and technical personnel in the field realize or use that the above embodiment, which is intended to illustrate the present invention, to above-mentioned
Embodiment is modified and be will be apparent for those skilled in the art, therefore the present invention includes but not limited to
The above embodiment, it is any to meet the claims or specification description, meet with principles disclosed herein and novelty,
The method of inventive features, technique, product, each fall within protection scope of the present invention.
Claims (7)
1. a kind of graphene molecules sieve coated aluminum foil, including aluminium base and graphite ene coatings, at least side of the aluminium base is equipped with stone
Black ene coatings, which is characterized in that graphite ene coatings are made of following composition, are counted in parts by weight：
50-70 parts of graphene mother liquor
20-35 parts of molecular sieve
5-15 parts of filler
3-10 parts of adhesive.
2. a kind of graphene molecules sieve coated aluminum foil as described in claim 1, which is characterized in that the graphene mother liquor is by receiving
Meter level graphene and dispersant composition, nanoscale graphite alkene：Dispersant is 0.5：2, by weight；The dispersant is by gathering
Acrylamide, benzotriazole, acrylic acid, ethyl alcohol, diethanol amine and water composition, polyacrylamide：Benzotriazole：Propylene
Acid：Ethyl alcohol：Diethanol amine：Water is 1：0.8：1.5：2：1, by weight.
3. a kind of graphene molecules sieve coated aluminum foil as described in claim 1, which is characterized in that the filler is by titanium dioxide
Silicon, bentonite, aluminium oxide, diatomite and miberal powder composition；Silica：Bentonite：Aluminium oxide：Miberal powder is 1：1.5：0.8：1.2：
0.6, by weight.
4. a kind of graphene molecules sieve coated aluminum foil as described in claim 1, which is characterized in that the molecular sieve selects Shanghai
The activated molecular sieve of Jiu Zhou Chemical Companies production.
5. a kind of graphene molecules sieve coated aluminum foil as described in claim 1, which is characterized in that described adhesive is by poly- methyl
Acrylate, polyvinyl alcohol, methyl diphenylene diisocyanate, water and ethyl acetate composition, polymethacrylates：Poly- second
Enol：Methyl diphenylene diisocyanate：Water：Ethyl acetate is 1：0.8：0.8：1.5：1, by weight.
6. the preparation method of a kind of graphene molecules sieve coated aluminum foil as described in claim 1, which is characterized in that including as follows
Step：
Step 1 prepares graphene mother liquor, and dispersant is added in nanoscale graphite alkene, carries out ultrasonic oscillation and forms mother liquor, surpasses
Frequency of sound wave is 10~30kHZ, shakes time 0.5-3 hour；Nanoscale graphite alkene：Dispersant is 0.5：2, by weight
Than meter；The dispersant is made of polyacrylamide, benzotriazole, acrylic acid, ethyl alcohol, diethanol amine and water, polyacrylamide
Amine：Benzotriazole：Acrylic acid：Ethyl alcohol：Diethanol amine：Water is 1：0.8：1.5：2：1, by weight.
7. step 2 mixes polymethacrylates, polyvinyl alcohol, methyl diphenylene diisocyanate, water and ethyl acetate
It stirs evenly, forms adhesive；Polymethacrylates：Polyvinyl alcohol：Methyl diphenylene diisocyanate：Water：Ethyl acetate
It is 1：0.8：0.8：1.5：1, by weight；
Silica, bentonite, aluminium oxide, diatomite and miberal powder are mixed evenly step 3, are then heated to 500 DEG C
Heat preservation 1h makes its activation afterwards, after being cooled to room temperature, then is freezed, and cryogenic temperature is -50 DEG C, and cooling time is this hour,
Place into grinding equipment carry out ultra-fine grinding to particle in 100nm hereinafter, be passed through nitrogen when milling, be stirred for uniformly, being formed
Filler；
Step 4: graphene mother liquor, molecular sieve, filler and adhesive are mixed evenly to form mixed liquor；
Step 5: coating curing, step 4 acquisition mixed liquor is uniformly coated in aluminium base, then carries out baking and curing；Institute
Hardening time is stated as 30~75s, solidification temperature is：It 220~260 DEG C, is dried in tunnel machine.
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| CN110066596A (en) * | 2019-03-28 | 2019-07-30 | 英鸿纳米科技股份有限公司 | A kind of aluminium non-stick pan special-purpose nanometer protective coating, preparation method and its coating processes |
| CN112259372A (en) * | 2020-09-25 | 2021-01-22 | 东莞市普隆电子有限公司 | Novel graphene coating aluminum foil capacitor |
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| CN110066596A (en) * | 2019-03-28 | 2019-07-30 | 英鸿纳米科技股份有限公司 | A kind of aluminium non-stick pan special-purpose nanometer protective coating, preparation method and its coating processes |
| CN112259372A (en) * | 2020-09-25 | 2021-01-22 | 东莞市普隆电子有限公司 | Novel graphene coating aluminum foil capacitor |
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