CN107674551A - A kind of graphene reflective insulation coating and preparation method thereof - Google Patents
A kind of graphene reflective insulation coating and preparation method thereof Download PDFInfo
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- CN107674551A CN107674551A CN201711079167.1A CN201711079167A CN107674551A CN 107674551 A CN107674551 A CN 107674551A CN 201711079167 A CN201711079167 A CN 201711079167A CN 107674551 A CN107674551 A CN 107674551A
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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
- C09D5/004—Reflecting paints; Signal paints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
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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
- 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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- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2503/00—Polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2506/00—Halogenated polymers
- B05D2506/10—Fluorinated polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
- B05D2601/24—Titanium dioxide, e.g. rutile
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K7/18—Solid spheres inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K7/00—Use of ingredients characterised by shape
- C08K7/16—Solid spheres
- C08K7/18—Solid spheres inorganic
- C08K7/20—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The invention belongs to technical field of coatings, is related to the application of graphene technology, more particularly to a kind of graphene reflective insulation coating and preparation method thereof, and comprising non-solvent epoxy bottom, the heat-insulated floating coat of polyurethane and graphene are modified reflecting finish；And the preparation method for giving above-mentioned three layers.The present invention using the pattern of face combination in bottom, and adds the graphene composition of the high infrared reflection rate of polymer modification, can effectively reduce the coefficient of heat conduction of coating, reach higher reflective insulation effect compared with conventional reflector insulating moulding coating.
Description
Technical field
The invention belongs to technical field of coatings, be related to the application of graphene technology, more particularly to a kind of reflection of graphene every
Hot coating and preparation method thereof.
Background technology
The nucleus radius of the sun is the 1/4 of solar radius, about whole solar mass more than half.Sun core
Extreme temperatures, reach 15,000,000 DEG C, pressure is also very big so that occurred by fusion of hydrogen for the thermonuclear reaction of helium, so as to release
Release great energy.These energy by the transmission of material in radiating layer and troposphere, are just able to be sent to up to sunshine again
The bottom of ball, and outwards radiate by photosphere.Solar radiant energy has particularly significant to the thermal environment and energy consumption of building
Effect.Insulating moulding coating be it is a kind of by obstructing, reflecting, the mechanism such as radiating to reduce the accumulation of coated article internal heat, so as to
Reach energy-conservation and improve working environment or it is safe the purpose of functional coating, mainly include isolation-type insulating moulding coating, reflection-type every
Hot coating and Radiation Heat-insulated Paint.Wherein, it is most with practical value with reflective insulation coating.But at present for reflection-type
The research of insulating moulding coating remains problems:Surface is built with reflective insulation coating substantially or solvent-applied type
System, pollution problem are severe, it is therefore desirable to develop the water-based system for building surface or solvent-free system reflection type thermal insulation applies
Material；Meanwhile reflective heat-insulation paint superficial reflex rate bottom, heat-proof quality need further to be improved.
The content of the invention
The present invention is directed to the problem of above-mentioned, there is provided a kind of graphene reflective insulation coating and preparation method thereof.
In order to achieve the above object, the technical solution adopted by the present invention is,
A kind of graphene reflective insulation coating, the graphene reflective insulation coating include solvent-free ring successively from bottom to up
The heat-insulated floating coat of oxygen bottom, polyurethane and graphene are modified reflecting finish；
The non-solvent epoxy bottom specifically includes following components：
The heat-insulated floating coat of polyurethane includes component A and B component；
The component A specifically includes following components：
The B component is 100 parts of polyisocyanates；
The graphene is modified reflecting finish and specifically includes following components：
Described modified graphene oxide dispersion liquid is that polymer modification graphene oxide adds wetting and dispersing auxiliary agent with going
Ionized water disperses the mixture that agitation grinding forms.
Preferably, each component in the non-solvent epoxy bottom：
The epoxy resin is the one or more in bisphenol A type epoxy resin E-20, E-44, E-51；The activity is dilute
Agent is released as one kind in phenyl glycidyl ether, allyl glycidyl ether, glycerin triglycidyl ether, diglycidyl ether
It is or several；The defoamer is organic silicon defoamer；The dispersant is fatty acyl amide dispersant or fatty acid without molten
Formulation dispersant；Described curing agent is phenol aldehyde modified fatty amines curing agent.
Preferably, each component in the heat-insulated floating coat of polyurethane：
The PEPA is the oligomer that Dicarboxylic Acids are polymerized with polyalcohol, polyamine；The water removal
Agent is oxazolidine deicer；The dispersant is calgon and lauryl sodium sulfate according to mass ratio 1：2 compositions
Mixture；The defoamer is mineral hydrocarbon defoamer and/or nonionic alkyl copolymer defoamer；The profit
Humectant is non-ionic wetting agent；The anti-settling agent is organic modified bentonite；Described levelling agent is that polyethers modifies poly- silica
Alkanes levelling agent；The polyisocyanates includes '-diphenylmethane diisocyanate, hexamethylene diisocyanate and isophorone
One or more in diisocyanate.
Preferably, the graphene is modified each component in reflecting finish：
The fluorocarbon resin is four fluorine-type fluorocarbon resins；The color stuffing slurry is titanium dioxide, powdered whiting slurry, kaolinite
At least one of soil, talcum powder, ultra-fine calcite in powder, diatomite, barium sulfate, mica powder material add wetting and dispersing auxiliary agent with
Deionized water disperses the slurry like material that agitation grinding forms；The modified graphene oxide dispersion liquid is that polymer modification aoxidizes stone
Black alkene adds the mixture that wetting and dispersing auxiliary agent forms with the scattered agitation grinding of deionized water；The dispersant is fatty acyl amide
Dispersant or fatty acid no-solvent type dispersant；Described levelling agent is that polyethers modifies polysiloxane-based levelling agent；Described
Defoamer is organic silicon defoamer；Described auxiliary rheological agents are polyamide modified hydrogenated castor
Oily derivative species rheological agent；The automatically cleaning auxiliary agent is the hydrophiling that can be migrated and hydrolyze to film coated surface
Auxiliary agent；The curing agent is hexamethylene diisocyanate.
A kind of method for the graphene reflective insulation coating for preparing any one in claim 1-4, is specifically included following
Step：
The preparation of non-solvent epoxy bottom,
In the charging basket of stainless steel, it is blended to add epoxy resin, reactive diluent, defoamer, dispersant
Uniformly, scattered at a high speed, temperature reaches 50-60 DEG C, keeps this temperature range to continue scattered 0.5-1h, after
Curing agent is added, stirs obtained non-solvent epoxy prime paint；
The preparation of the heat-insulated floating coat of polyurethane, specifically includes following steps,
1) by titanium dioxide, silica flour, glass bead, ceramic fine bead heating water removal, wherein heating-up temperature is 120-1800 DEG C,
The water removal time is 10-15h,
2) regulation turns after mixing PEPA, deicer, dispersant, defoamer, wetting agent, anti-settling agent and levelling agent
Fast 1000-1500r/min is stirred,
3) titanium dioxide and silica flour are gradually added in whipping process, rotating speed is heightened to 1500-2000r/min, carries out high
Shearing is scattered, each component is uniformly dispersed,
4) reduce rotating speed to 300-500r/min, be gradually added glass bead and ceramic fine bead, obtain the polyurethane every
Hanker coating component A,
5) by obtained component A and B component polyisocyanates by weight A:B=100:35-40, which is thoroughly mixed, to be made
With producing the heat-insulated floating coat paint of polyurethane；
Graphene is modified the preparation of reflecting finish,
In the charging basket of stainless steel, fluorocarbon resin, color stuffing slurry, modified graphene oxide dispersion liquid, dispersant, stream are added
Flat agent, defoamer, auxiliary rheological agents, automatically cleaning auxiliary agent by evenly mixing, add curing agent after disperseing at a high speed, stir system
Obtain graphene and be modified reflecting finish paint.
It can be mixed colours preferably, the graphene is modified reflecting finish according to three primary color theory, respectively obtain difference
The long-acting type graphene of other colors such as the grey of tone, orange, green, purple is modified solar heat reflection investment precoat.
Compared with prior art, the advantages and positive effects of the present invention are,
1st, bottom is closed using non-solvent epoxy prime paint, using the construction technologies such as brushing, spraying, thickness of dry film
120-160μm.Floating coat selects the no-solvent polyurethane insulating moulding coating containing glass microballoon and ceramic fine bead filler, using roller coating,
Spraying application, 80-100 μm of thickness of dry film.Finish paint uses graphene modified water-soluble fluorocarbon layer, and construction technology, which can use, brushes, rolls
Apply, spraying, 60-80 μm of thickness of dry film.Because the hemispherical emissivity of graphene is higher, infrared reflective is strong, reflecting finish addition
Graphene composite material composition, not only reduces the coefficient of heat conduction, additionally it is possible to effectively reduces the absorption index and folding of coating
Coefficient is penetrated, improves the hemispherical emissivity of coating.Meanwhile the thermal insulating filling of floating coat is that system has obstructed larger heat so that
The system coating has preferable reflective insulation performance.The self-cleaning function of surface layer make it that water contact angle is minimum, the infiltration with water
Property is splendid, and the appearance of film totally cleaned can be kept under rainwash, is not produced " rainprint ", effectively improves coated article
Aesthetic property.
Embodiment
In order to be more clearly understood that the above objects, features and advantages of the present invention, with reference to embodiment to this hair
It is bright to be described further.It should be noted that in the case where not conflicting, the feature in embodiments herein and embodiment can
To be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other modes described here are different from, therefore, the present invention is not limited to the specific of specification described below
The limitation of embodiment.
Embodiment 1
(1) non-solvent epoxy bottom
In the charging basket of stainless steel, 60 parts of epoxy resin E-44,31.7 parts of allyl glycidyl ether, defoamer are added
0.5 part, 0.8 part of dispersant by evenly mixing, scattered at a high speed, temperature reaches 55 DEG C, keeps this temperature range to continue to disperse
50min, phenol aldehyde modified 7 parts of fatty amines curing agent is added afterwards, stirs obtained non-solvent epoxy priming paint.
(2) the heat-insulated floating coat of polyurethane
1) 16 parts of 8 parts of titanium dioxide, 12 parts of silica flour, 10 parts of glass bead, ceramic fine bead heating are removed water, wherein heating temperature
Spend for 200 DEG C, the water removal time is 10h；
2) by 45 parts of PEPA, 3 parts of deicer, 1 part of dispersant, 0.5 part of defoamer, 1 part of wetting agent, anti-settling agent 2
Regulation rotating speed 1200r/min is stirred after the 1.5 parts of mixing of part and levelling agent；
3) titanium dioxide and silica flour are gradually added in whipping process, rotating speed is heightened to 1800r/min, carries out high shear point
Dissipate, each component is uniformly dispersed；
4) reduce rotating speed to 500r/min, be gradually added glass bead and ceramic fine bead, obtain the polyurethane it is heat-insulated in
Coating component A；
5) by obtained component A and B component polyisocyanates by weight A:B=100:35 are thoroughly mixed use,
Produce the heat-insulated floating coating of polyurethane.
(3) graphene is modified reflecting finish.
In the charging basket of stainless steel, 40 parts of fluorocarbon resin is added, color stuffing starches 38 parts, modified graphene oxide dispersion liquid 5
Part, 1.5 parts of dispersant, 1 part of levelling agent, 1 part of defoamer, 2 parts of auxiliary rheological agents, 1.5 parts of automatically cleaning auxiliary agent by evenly mixing, at a high speed
10 parts of curing agent is added after scattered, obtained graphene is stirred and is modified reflecting finish paint.
Finish paint in the bottom of preparation is brushed on standard testing part in order, produces graphene reflective insulation coating sample 1.
Embodiment 2
(1) non-solvent epoxy bottom
In the charging basket of stainless steel, epoxy resin E-2070 parts, 17.7 parts of phenyl glycidyl ether, defoamer 0.8 are added
By evenly mixing, scattered at a high speed, temperature reaches 60 DEG C for part, 1.5 parts of dispersant, keeps this temperature range to continue scattered 1h, rear to add
Enter phenol aldehyde modified 10 parts of fatty amines curing agent, stir obtained non-solvent epoxy priming paint.
(2) the heat-insulated floating coat of polyurethane
1) 13 parts of 5 parts of titanium dioxide, 10 parts of silica flour, 10 parts of glass bead, ceramic fine bead heating are removed water, wherein heating temperature
Spend for 180 DEG C, the water removal time is 12h；
2) by 50 parts of PEPA, 5 parts of deicer, 1.5 parts of dispersant, 1 part of defoamer, 1 part of wetting agent, anti-settling agent
Regulation rotating speed 1000r/min is stirred after 1.5 parts and the mixing of 2 parts of levelling agent；
3) titanium dioxide and silica flour are gradually added in whipping process, rotating speed is heightened to 1500r/min, carries out high shear point
Dissipate, each component is uniformly dispersed；
4) reduce rotating speed to 400r/min, be gradually added glass bead and ceramic fine bead, obtain the polyurethane it is heat-insulated in
Coating component A；
5) by obtained component A and B component polyisocyanates by weight A:B=100:38 are thoroughly mixed use,
Produce the heat-insulated floating coating of polyurethane.
(3) graphene is modified reflecting finish.
In the charging basket of stainless steel, 50 parts of fluorocarbon resin is added, color stuffing starches 28 parts, modified graphene oxide dispersion liquid 3
Part, 1.5 parts of dispersant, 1 part of levelling agent, 1.5 parts of defoamer, 1 part of auxiliary rheological agents, 2 parts of automatically cleaning auxiliary agent by evenly mixing, at a high speed
12 parts of curing agent is added after scattered, obtained graphene is stirred and is modified reflecting finish paint.
Finish paint in the bottom of preparation is brushed on standard testing part in order, produces graphene reflective insulation coating sample 2.
The effect of the graphene reflective insulation coating provided embodiment enters detection, as a result as follows：
Following table：A kind of testing result for graphene reflective insulation coating that embodiment provides
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Effect embodiment is applied to other fields, but every without departing from technical solution of the present invention content, the technical spirit according to the present invention
Any simple modification, equivalent variations and the remodeling made to above example, still fall within the protection domain of technical solution of the present invention.
Claims (5)
1. a kind of graphene reflective insulation coating, it is characterised in that the graphene reflective insulation coating is wrapped successively from bottom to up
Include the heat-insulated floating coat of non-solvent epoxy bottom, polyurethane and graphene is modified reflecting finish；
The non-solvent epoxy bottom specifically includes following components：
The heat-insulated floating coat of polyurethane includes component A and B component；
The component A specifically includes following components：
The B component is 100 parts of polyisocyanates；
The graphene is modified reflecting finish and specifically includes following components：
Described modified graphene oxide dispersion liquid is that polymer modification graphene oxide adds wetting and dispersing auxiliary agent and deionization
Moisture dissipates the mixture that agitation grinding forms.
A kind of 2. graphene reflective insulation coating according to claim 1, it is characterised in that the non-solvent epoxy bottom
Middle each component：
The epoxy resin is the one or more in bisphenol A type epoxy resin E-20, E-44, E-51；The reactive diluent
For one kind in phenyl glycidyl ether, allyl glycidyl ether, glycerin triglycidyl ether, diglycidyl ether or several
Kind；The defoamer is organic silicon defoamer；The dispersant is fatty acyl amide dispersant or fatty acid no-solvent type
Dispersant；Described curing agent is phenol aldehyde modified fatty amines curing agent.
A kind of 3. graphene reflective insulation coating according to claim 1, it is characterised in that the heat-insulated middle painting of polyurethane
Each component in layer：
The PEPA is the oligomer that Dicarboxylic Acids are polymerized with polyalcohol, polyamine；The deicer is
Oxazolidine deicer；The dispersant is calgon and lauryl sodium sulfate according to mass ratio 1：The mixing of 2 compositions
Thing；The defoamer is mineral hydrocarbon defoamer and/or nonionic alkyl copolymer defoamer；The wetting agent
For non-ionic wetting agent；The anti-settling agent is organic modified bentonite；Described levelling agent is that polyethers modification is polysiloxane-based
Levelling agent；It is different that the polyisocyanates includes '-diphenylmethane diisocyanate, hexamethylene diisocyanate and isophorone two
One or more in cyanate.
4. a kind of graphene reflective insulation coating according to claim 1, it is characterised in that the graphene is modified reflection
Each component in surface layer：
The fluorocarbon resin is four fluorine-type fluorocarbon resins；Color stuffing slurry be titanium dioxide, powdered whiting slurry, kaolin,
At least one of talcum powder, ultra-fine calcite in powder, diatomite, barium sulfate, mica powder material adds wetting and dispersing auxiliary agent with going
Ionized water disperses the slurry like material that agitation grinding forms；The modified graphene oxide dispersion liquid is polymer modification graphite oxide
Alkene adds the mixture that wetting and dispersing auxiliary agent forms with the scattered agitation grinding of deionized water；The dispersant is fatty acyl amide point
Powder or fatty acid no-solvent type dispersant；Described levelling agent is that polyethers modifies polysiloxane-based levelling agent；Described disappears
Infusion is organic silicon defoamer；Described auxiliary rheological agents are polyamide modified rilanit special derivative species rheological agent；Institute
It is the hydrophiling auxiliary agent that can be migrated and hydrolyze to film coated surface to state automatically cleaning auxiliary agent；The curing agent is the isocyanic acid of hexa-methylene two
Ester.
A kind of 5. method for the graphene reflective insulation coating for preparing any one in claim 1-4, it is characterised in that specific
Comprise the following steps：
The preparation of non-solvent epoxy bottom,
In the charging basket of stainless steel, epoxy resin, reactive diluent, defoamer, dispersant are added by evenly mixing, divide at a high speed
Dissipate, temperature reaches 50-60 DEG C, keeps this temperature range to continue scattered 0.5-1h, adds curing agent afterwards, stir obtained
Non-solvent epoxy prime paint；
The preparation of the heat-insulated floating coat of polyurethane, specifically includes following steps,
1) by titanium dioxide, silica flour, glass bead, ceramic fine bead heating water removal, wherein heating-up temperature is 120-1800 DEG C, water removal
Time is 10-15h,
2) rotating speed is adjusted after mixing PEPA, deicer, dispersant, defoamer, wetting agent, anti-settling agent and levelling agent
1000-1500r/min is stirred,
3) titanium dioxide and silica flour are gradually added in whipping process, rotating speed is heightened to 1500-2000r/min, carries out high shear
It is scattered, each component is uniformly dispersed,
4) reduce rotating speed to 300-500r/min, be gradually added glass bead and ceramic fine bead, obtain the polyurethane it is heat-insulated in
Coating component A,
5) by obtained component A and B component polyisocyanates by weight A:B= 100:35-40 is thoroughly mixed use, i.e.,
Obtain the heat-insulated floating coat paint of polyurethane；
Graphene is modified the preparation of reflecting finish,
In the charging basket of stainless steel, fluorocarbon resin, color stuffing slurry, modified graphene oxide dispersion liquid, dispersant, levelling are added
Agent, defoamer, auxiliary rheological agents, automatically cleaning auxiliary agent by evenly mixing, add curing agent after disperseing at a high speed, stirred obtained
Graphene is modified reflecting finish paint;
6) simultaneously, surface layer can be mixed colours according to three primary color theory, respectively obtain the grey of different tones, orange, green, purple
Long-acting type graphene Deng other colors is modified solar heat reflection investment precoat.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575225A (en) * | 2018-12-21 | 2019-04-05 | 广东好邦石墨烯新材料科技有限公司 | A kind of graphene oxide modified firming agent, polyurethane coating and its preparation method and application |
| CN109593436A (en) * | 2018-12-01 | 2019-04-09 | 河南工业大学 | A kind of screening hot coating and preparation method thereof |
| CN110408251A (en) * | 2019-09-06 | 2019-11-05 | 中国铁路设计集团有限公司 | A kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system |
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| CN109593436A (en) * | 2018-12-01 | 2019-04-09 | 河南工业大学 | A kind of screening hot coating and preparation method thereof |
| CN109575225A (en) * | 2018-12-21 | 2019-04-05 | 广东好邦石墨烯新材料科技有限公司 | A kind of graphene oxide modified firming agent, polyurethane coating and its preparation method and application |
| CN109575225B (en) * | 2018-12-21 | 2021-11-16 | 广东好邦石墨烯新材料科技有限公司 | Graphene oxide modified curing agent, polyurethane coating, and preparation method and application thereof |
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| CN112054849A (en) * | 2020-08-19 | 2020-12-08 | 浙江工业大学 | Infrared encryption communication device |
| CN114775296A (en) * | 2022-03-01 | 2022-07-22 | 东华大学 | Highlight reflection phase change heat storage coating for textile and preparation method thereof |
| CN115322658A (en) * | 2022-09-19 | 2022-11-11 | 福州创先工程材料有限公司 | Nano heat-insulating and cooling coating |
| CN116396663A (en) * | 2023-04-18 | 2023-07-07 | 哈尔滨工程大学船舶装备科技有限公司 | Aerogel combined coating and preparation method thereof |
| CN116426179A (en) * | 2023-04-27 | 2023-07-14 | 武汉理工大学 | Thermal insulation composite coating and preparation method and application thereof |
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