CN105885563A - Composite coating and preparation method thereof - Google Patents
Composite coating and preparation method thereof Download PDFInfo
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- CN105885563A CN105885563A CN201610491551.1A CN201610491551A CN105885563A CN 105885563 A CN105885563 A CN 105885563A CN 201610491551 A CN201610491551 A CN 201610491551A CN 105885563 A CN105885563 A CN 105885563A
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- 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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- 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
- C09D5/08—Anti-corrosive paints
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a composite coating. The composite coating comprises the following components in parts by weight: 40-50 parts of fluorocarbon resin, 0.5-2 parts of graphene, 0.5-1 part of polyamide rheological agent, 5-15 parts of modified phosphate, 0.5-2 parts of dispersing agent, 0.5-2 parts of coupling agent, 5-10 parts of modified resin and 10-20 parts of solvent. The following two technical problems are mainly solved: I. the functions of the primer and the top coat are unified and the aim of convenience in construction is achieved; and II. graphene is used as a functional filler to achieve the function of high barrier, so corrosive media are difficult to permeate substrates, thus improving the salt spray, chemicals, weather and damp heat resistance of the coating.
Description
Technical field
The invention belongs to paint field, particularly relate to a kind of composite coating and preparation method thereof.
Background technology
Aluminium alloy is the class important meals material that RECENT DEVELOPMENTS is got up, and aluminium alloy has intensity is high, density is little, electrical and thermal conductivity is strong, excellent in mechanical performance, machinability are good advantage and is widely used in the fields such as chemical industry, aerospace industry, auto manufacturing, food industry, electronics, instrument and meter and marine ship be industrial.But aluminium alloy is as other metals, also it is faced with serious etching problem, although under field conditions (factors), aluminum alloy surface easily forms the natural oxide film of a layer thickness about 4nm, but this tunic porous, uneven, and corrosion stability is poor, it is difficult to opposing adverse circumstances corrosion.
In prior art, generally by carrying out anticorrosion at metal surface coating coating, existing coating mainly has three layers, respectively transition layer, prime coat and top coat layer, wherein, the effect of transition layer is metal surface to be changed into more corrosion resistant superficial layer or increases the adhesive force of priming paint；Prime coat acts primarily as corrosion-resisting function, it is common that the chromate and the non-chromate pigment that are coated with by epoxy resin form, and chromate plays the effect of corrosion inhibiter.Top coat layer acts primarily as beautiful decoration, and media-resistant corrosion and environmental corrosion resisting (weather-proof, ultraviolet) act on.Such coating processes, by chromate, the oxide-film obtained and has good corrosion resistance; but the superior performance of this film is relevant with the Cr VI in membrane structure; owing to Cr VI has carcinogenicity; human body and environment there is serious harm; from nineteen eighty-two, world environments protective tissue just proposes to limit the regulation using chromate and other chromate-containing compounds.
In order to solve above-mentioned technical problem, prior art proposes a kind of preferable technology of Corrosion Protection: the prior art if China Patent No. is " 201310158505.6 " discloses a kind of novel anticorrosion on August 21st, 2013, UV resistance, fungi-proofing and wear-resistant paint and preparation method thereof, it is made up of A agent and B agent, described A agent is made up of following weight percent composition: fluorocarbon resin 60%-70%, graphene nanosheet 1%-8%, ultra-violet absorber 0%-2%, dispersant 0.5%-1%, levelling agent 0.5%-1%, defoamer 0.5%-1%, bentonite 1%-3%, titanium dioxide 20%-25%, adhesion promoter 0.5%-1% and solvent 2%-5%, described B agent for A agent associated with curing agent.The operation preparation technology of this patent is simple, and prepared Graphene corrosion resistant coating has excellent wear-resisting, ageing-resistant, fungi-proofing and Corrosion Protection, and Graphene nonhazardous side effect, high-efficiency environment friendly.
But this patent is in actual use, however it remains following defect: one, the coating in this patent uses mainly as finish paint, and can not the unification of priming paint finish paint use, there is the defect that working procedure of coating is complicated.Two, this patent is in preparation process, needs twice ultrasonic disperse and at least triple mixing mixing, and its production technology is complex.Further, the time of each ultrasonic disperse and stirring mixing is longer, if in preparation process, if each step is carried out successively, needs just can complete for about 13 hours the preparation of coating, and it is extremely inefficient.It addition, Graphene ultrasonic wave dispersion operability is the strongest in reality produces greatly.
Summary of the invention
It is an object of the invention to solve the above-mentioned problems in the prior art, it is provided that a kind of composite coating and preparation method thereof, present invention mainly solves following two technical problem: one is so that priming paint finish paint functional unification, reaches the purpose of easy construction；Two is using Graphene as functional filler, it is achieved high-barrier function, makes corrosive medium be difficult to penetrate into base material, improves the salt spray resistance of coating, chemical resistance, weather resistance and wet-hot aging performance.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of composite coating, it is characterised in that include following components by weight:
Fluorocarbon resin 40 50 parts, Graphene 0.5 2 parts, polyamide rheological agent 0.5 1 parts, modified phosphate 5 15 parts, dispersant 0.5 2 parts, coupling agent 0.5 2 parts, modified resin 5 10 parts, solvent 10 20 parts.
Described composite coating also includes coloring pigment 5 20 parts, levelling agent 0.5 1 parts and defoamer 0.5 1 parts.
Described solvent is one or both the mixing in dimethylbenzene, butyl acetate.
The preparation method of a kind of composite coating, it is characterised in that comprise the following steps:
(1) get the raw materials ready by said ratio, and solvent is divided into three parts；
(2) in container, add dispersant, Graphene, first part of solvent and part fluorocarbon resin, uniformly obtain Graphene premixing slurry after mixing；
(3) Graphene premixing slurry is mixed with coloring pigment, polyamide rheological agent, modified phosphate, defoamer, second part of solvent and remaining fluorocarbon resin, be ground to fineness and be less than 30um, obtain Graphene resin slurry；
(4) in Graphene resin slurry, add modified resin, levelling agent, coupling agent and the 3rd part of solvent, uniformly obtain finished product composite coating after mixing.
First part of described solvent accounts for the 50% of solvent total amount, and second part of solvent accounts for the 40% of solvent total amount, and the 3rd part of solvent accounts for the 10% of solvent total amount.
Fluorocarbon resin in described step (2) accounts for the 60% of fluorocarbon resin total amount.
In described step (2), after adding dispersant, first part of solvent and part fluorocarbon resin in container, under dispersity, add Graphene, after having added, more than 30min, the Graphene premixing slurry being i.e. uniformly mixed is disperseed with the rotating speed of 1000 2000r/min again by high speed dispersor.
Employing it is an advantage of the current invention that:
One, the composite coating in the present invention includes fluorocarbon resin, Graphene, polyamide rheological agent, modified phosphate, dispersant, coupling agent, modified resin, solvent, coloring pigment, levelling agent and defoamer, wherein, the weatherability of fluorocarbon coating itself is superpower, the key Han F-C in molecule, bond energy is big, Stability Analysis of Structures；Therefore, make base-material with fluorocarbon resin, be aided with modified resin, while realizing film densification, improve salt spray resistance and the wet-hot aging performance of coating；And the Graphene added in coating, it is possible to as functional filler, it is achieved high-barrier function, make corrosive medium be difficult to penetrate into base material, not only increase the salt spray resistance of coating, also improve chemical resistance and the weather resistance of coating simultaneously.Modified phosphate achieves coating and the phosphatization of metal base is passivated anticorrosion, and the corrosion to iron and steel and light metal etc. has extremely strong inhibitory action, strengthens the adhesive force of coating and base material simultaneously；Coupling agent can not only strengthen the coating adhesive force to base material, additionally it is possible to realizes the cladding to graphene sheet layer, strengthens the associated of Graphene and coating system, graphene sheet layer can also be made to sprawl as far as possible simultaneously；Polyamide rheological agent, result of prevention is good, does not increase coating system viscosity, overcomes to cause because using organobentonite etc. in prior art and easily returns the problem that composition that is thick, false thick and that dissolve migrates to coating surface.It addition, in above-mentioned formula, fluorocarbon resin consumption is 40 50 parts, paint film mechanical performance and resistance to sex expression are good；Graphene consumption is 0.5 2 parts, it is possible to realizes Graphene sheet and sprawls, paint film good mechanical property, if consumption is less than 0.5 part, graphene sheet layer fails to be paved with in paint film, it is impossible to embody the performance of Graphene, if consumption is higher than 2 parts, will affect again paint film mechanical performance；Polyamide rheological agent consumption is 0.5 1 parts, shows excellent anti-settling performance, does not interferes with paint film property；Modified phosphate consumption is 5 15 parts, shows good decay resistance, the most then corrosion resistance is poor, the most then affect paint film appearance and weather resistance；Modified resin demand is 5 10 parts, makes to realize intermolecular net IPN in paint film, does not the most then reach requirement and the paint film corrosion resisting property of network interpenetrating, the most then affect the weather resistance of paint film.
Two, one or both the mixing during the solvent in the present invention is dimethylbenzene, butyl acetate, use one or both the mixing in dimethylbenzene, butyl acetate as solvent, it is prevented from solvent quickly to volatilize, and makes its solubility property optimal, thus reach to improve the purpose of coating drying property.
Three, the present invention is during preparing composite coating, in advance Graphene is processed, with account for fluorocarbon resin total amount 60% amount of resin, account for solvent total amount 50% solvent and dispersant Graphene is fully soaked with pre-dispersed, allow graphene sheet layer sprawl as far as possible；Coloring pigment, modified phosphate are soaked as decentralized medium by next step using fluorocarbon resin and solvent；Finally add solvent, mainly adjusting coating overall performance and coating system viscosity at letdown phase.During whole manufacture coating, because the characteristic of Graphene self, it is difficult to dispersion, the pretreatment of Graphene is an emphasis, so preferentially Graphene being carried out abundant wetting and dispersing；Second, it is important that the grinding of coating, strictly controls the fineness of Graphene resin slurry.By above-mentioned preparation method, it becomes possible to prepare the coating with excellent salt spray resistance, chemical resistance, weather resistance and wet-hot aging performance.
Detailed description of the invention
Embodiment 1
A kind of composite coating, including following components by weight:
Fluorocarbon resin 40 parts, Graphene 2 parts, polyamide rheological agent 0.5 part, modified phosphate 15 parts, dispersant 1 part, coupling agent 0.5 part, modified resin 10 parts, solvent 10 parts, coloring pigment 20 parts, levelling agent 0.5 part, defoamer 0.5 part.Wherein, solvent is the mixing of dimethylbenzene and butyl acetate, and the mass fraction of dimethylbenzene is 8 parts, and the mass fraction of butyl acetate is 2 parts；Polyamide rheological agent is micronizing polyamide rheological agent.
The preparation method of a kind of composite coating, comprises the following steps:
(1) get the raw materials ready by said ratio, and solvent is divided into three parts；First part of described solvent accounts for the 50% of solvent total amount, and second part of solvent accounts for the 40% of solvent total amount, and the 3rd part of solvent accounts for the 10% of solvent total amount.
(2) adding dispersant, Graphene, first part of solvent and part fluorocarbon resin in container, fluorocarbon resin accounts for the 60% of fluorocarbon resin total amount, uniformly obtains Graphene premixing slurry after mixing.
In this step, after adding dispersant, first part of solvent and part fluorocarbon resin in container, Graphene is added (under the rotating speed of 200 300r/min) under dispersity, after Graphene has added, more than 30min is disperseed with the rotating speed of 1500r/min again by high speed dispersor, after having disperseed, the Graphene premixing slurry being i.e. uniformly mixed.
(3) Graphene premixing slurry is mixed with coloring pigment, polyamide rheological agent, modified phosphate, defoamer, second part of solvent and remaining fluorocarbon resin, horizontal sand mill is ground to fineness and is less than 30um, obtain Graphene resin slurry.
(4) in Graphene resin slurry, add modified resin, levelling agent, coupling agent and the 3rd part of solvent, after uniformly mixing by the way of stirring, obtain finished product composite coating.
Through experimental results demonstrate, after the present embodiment uses above-mentioned specific component, specific parameter and specific preparation technology, the performance of the composite coating prepared is: salt fog resistance: more than 1000h；Artificial ageing resistance is tested: more than 1000h；Wet-heat resisting: more than 1000h；Adhesive force: 1 grade (method of drawing a circle), hardness: 2H (pencil hardness)；Impact resistance: 50cm；Pliability: 3mm.
Embodiment 2
A kind of composite coating, including following components by weight:
Fluorocarbon resin 50 parts, Graphene 1 part, micronizing polyamide rheological agent 1 part, modified phosphate 5 parts, dispersant 2 parts, coupling agent 2 parts, modified resin 5 parts, solvent 13 parts, coloring pigment 5 parts, levelling agent 1 part, defoamer 1 part.Wherein, solvent is dimethylbenzene.
The preparation method of a kind of composite coating, comprises the following steps:
(1) get the raw materials ready by said ratio, and solvent is divided into three parts；First part of described solvent accounts for the 50% of solvent total amount, and second part of solvent accounts for the 40% of solvent total amount, and the 3rd part of solvent accounts for the 10% of solvent total amount.
(2) adding dispersant, Graphene, first part of solvent and part fluorocarbon resin in container, fluorocarbon resin accounts for the 60% of fluorocarbon resin total amount, uniformly obtains Graphene premixing slurry after mixing.
In this step, after adding dispersant, first part of solvent and part fluorocarbon resin in container, Graphene is added (under the rotating speed of 200 300r/min) under dispersity, after Graphene has added, more than 30min is disperseed with the rotating speed of 1000r/min again by high speed dispersor, after having disperseed, the Graphene premixing slurry being i.e. uniformly mixed.
(3) Graphene premixing slurry is mixed with coloring pigment, polyamide rheological agent, modified phosphate, defoamer, second part of solvent and remaining fluorocarbon resin, horizontal sand mill is ground to fineness 28um, obtains Graphene resin slurry.
(4) in Graphene resin slurry, add modified resin, levelling agent, coupling agent and the 3rd part of solvent, after uniformly mixing by the way of stirring, obtain finished product composite coating.
Through experimental results demonstrate, after the present embodiment uses above-mentioned specific component, specific parameter and specific preparation technology, the performance of the composite coating prepared is: salt fog resistance: more than 1000h；Artificial ageing resistance is tested: more than 1000h；Wet-heat resisting: more than 1000h；Adhesive force: 1 grade (method of drawing a circle), hardness: 3H (pencil hardness)；Impact resistance: 50cm；Pliability: 2mm.
Embodiment 3
A kind of composite coating, including following components by weight:
Fluorocarbon resin 45 parts, Graphene 0.5 part, micronizing polyamide rheological agent 0.8 part, modified phosphate 10 parts, dispersant 0.5 part, coupling agent 1.3 parts, modified resin 8 parts, solvent 20 parts, coloring pigment 12 parts, levelling agent 0.7 part, defoamer 08. part.Wherein, solvent is butyl acetate.
The preparation method of a kind of composite coating, comprises the following steps:
(1) get the raw materials ready by said ratio, and solvent is divided into three parts；First part of described solvent accounts for the 50% of solvent total amount, and second part of solvent accounts for the 40% of solvent total amount, and the 3rd part of solvent accounts for the 10% of solvent total amount.
(2) adding dispersant, Graphene, first part of solvent and part fluorocarbon resin in container, fluorocarbon resin accounts for the 60% of fluorocarbon resin total amount, uniformly obtains Graphene premixing slurry after mixing.
In this step, after adding dispersant, first part of solvent and part fluorocarbon resin in container, Graphene is added (under the rotating speed of 200 300r/min) under dispersity, after Graphene has added, more than 30min is disperseed with the rotating speed of 2000r/min again by high speed dispersor, after having disperseed, the Graphene premixing slurry being i.e. uniformly mixed.
(3) Graphene premixing slurry is mixed with coloring pigment, polyamide rheological agent, modified phosphate, defoamer, second part of solvent and remaining fluorocarbon resin, horizontal sand mill is ground to fineness 26um, obtains Graphene resin slurry.
(4) in Graphene resin slurry, add modified resin, levelling agent, coupling agent and the 3rd part of solvent, after uniformly mixing by the way of stirring, obtain finished product composite coating.
Through experimental results demonstrate, after the present embodiment uses above-mentioned specific component, specific parameter and specific preparation technology, the performance of the composite coating prepared is: salt fog resistance: more than 1000h；Artificial ageing resistance is tested: more than 1000h；Wet-heat resisting: more than 1000h；Adhesive force: 1 grade (method of drawing a circle), hardness: 3H (pencil hardness)；Impact resistance: 50cm；Pliability: 2mm.
Claims (7)
1. a composite coating, it is characterised in that include following components by weight:
Fluorocarbon resin 40 50 parts, Graphene 0.5 2 parts, polyamide rheological agent 0.5 1 parts, modified phosphate 5 15 parts, dispersant 0.5 2 parts, coupling agent 0.5 2 parts, modified resin 5 10 parts, solvent 10 20 parts.
2. a kind of composite coating as claimed in claim 1, it is characterised in that: described composite coating also includes coloring pigment 5 20 parts, levelling agent 0.5 1 parts and defoamer 0.5 1 parts.
3. a kind of composite coating as claimed in claim 1, it is characterised in that: described solvent is one or both the mixing in dimethylbenzene, butyl acetate.
The preparation method of a kind of composite coating the most as claimed in claim 2 or claim 3, it is characterised in that comprise the following steps:
(1) get the raw materials ready by said ratio, and solvent is divided into three parts；
(2) in container, add dispersant, Graphene, first part of solvent and part fluorocarbon resin, uniformly obtain Graphene premixing slurry after mixing；
(3) Graphene premixing slurry is mixed with coloring pigment, polyamide rheological agent, modified phosphate, defoamer, second part of solvent and remaining fluorocarbon resin, be ground to fineness and be less than 30um, obtain Graphene resin slurry；
(4) in Graphene resin slurry, add modified resin, levelling agent, coupling agent and the 3rd part of solvent, uniformly obtain finished product composite coating after mixing.
The preparation method of a kind of composite coating the most as claimed in claim 4, it is characterised in that: first part of described solvent accounts for the 50% of solvent total amount, and second part of solvent accounts for the 40% of solvent total amount, and the 3rd part of solvent accounts for the 10% of solvent total amount.
The preparation method of a kind of composite coating the most as claimed in claim 4, it is characterised in that: the fluorocarbon resin in described step (2) accounts for the 60% of fluorocarbon resin total amount.
The preparation method of a kind of composite coating the most as claimed in claim 4, it is characterized in that: in described step (2), after adding dispersant, first part of solvent and part fluorocarbon resin in container, Graphene is added under dispersity, after having added, more than 30min, the Graphene premixing slurry being i.e. uniformly mixed is disperseed with the rotating speed of 1000 2000r/min again by high speed dispersor.
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| CN110229571A (en) * | 2019-06-20 | 2019-09-13 | 中国铁路广州局集团有限公司 | Novel bottom surface unification zinc alkene anticorrosive paint, preparation method and finishing system |
| CN110541325A (en) * | 2018-05-28 | 2019-12-06 | 宁波亚洲浆纸业有限公司 | papermaking coating, preparation method thereof and paperboard |
| CN111607296A (en) * | 2020-06-02 | 2020-09-01 | 上海金狮化工有限公司 | Functional graphene modified water-based leather color paste and preparation method thereof |
| CN112423984A (en) * | 2018-07-18 | 2021-02-26 | Ａｇｃ株式会社 | Substrate with coating film and method for producing substrate with coating film |
| CN114956065A (en) * | 2022-05-30 | 2022-08-30 | 广东墨睿科技有限公司 | Amino modified graphene, preparation method thereof, amino modified graphene coating and application thereof |
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| CN112423984A (en) * | 2018-07-18 | 2021-02-26 | Ａｇｃ株式会社 | Substrate with coating film and method for producing substrate with coating film |
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| CN111607296A (en) * | 2020-06-02 | 2020-09-01 | 上海金狮化工有限公司 | Functional graphene modified water-based leather color paste and preparation method thereof |
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Application publication date: 20160824 |