CN109233398A - A kind of heavy antisepsis dry powder paint special graphite alkene masterbatch and preparation method - Google Patents
A kind of heavy antisepsis dry powder paint special graphite alkene masterbatch and preparation method Download PDFInfo
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- CN109233398A CN109233398A CN201810921407.6A CN201810921407A CN109233398A CN 109233398 A CN109233398 A CN 109233398A CN 201810921407 A CN201810921407 A CN 201810921407A CN 109233398 A CN109233398 A CN 109233398A
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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
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
- C09D5/038—Anticorrosion agents
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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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- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
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Abstract
The present invention provides a kind of heavy antisepsis dry powder paint special graphite alkene masterbatch and preparation methods.The flaky inorganic carrier for loading graphene microchip and dispersing agent, catalyst, initiator, photocurable polyurethane acrylate prepolymer are successively added in deionized water, ultrasonic disperse is uniform, and the chip carrier of photocurable polyurethane acrylate prepolymer cladding is made；Then it carries out spraying atomization granulation under uv illumination, collects, heavy antisepsis dry powder paint special graphite alkene masterbatch is made.Graphene microchip is fixed in flaky inorganic object carrier by the photocuring reaction of the photo curable polyurethane acrylate prepolymer of this method; graphene masterbatch obtained directly adds the mixing in heavy antisepsis dry powder paint and carries out hot melting spraying; graphene microchip is evenly dispersed in coating; form uniform barrier layer; it assigns coating excellent antiseptic property, the service life of the protected metallic matrix of anticorrosive paint is substantially improved.
Description
Technical field
The present invention relates to anticorrosive paint fields, and in particular to anticorrosive paint enhances masterbatch, more particularly to a kind of heavy antisepsis
Dry powder paint special graphite alkene masterbatch and preparation method.
Background technique
The phenomenon that metal erosion is chemistry or the electrochemical action due to metal surface by surrounding medium and is destroyed, anti-corrosion
Losing the most frequently used and effective method is to coat erosion shield in metal surface, and the corrosive mediums such as matrix and water, oxygen are completely cut off.Cause
This, the barrier property of coating makes one of the principal element for evaluating anticorrosive paint performance.Existing anticorrosive paint is usually with polymerization
Object is main film forming substance, such as: epoxy resin, alkyd resin, acrylic resin.The knot that polymer is formed in film forming procedure
The inducing action of brilliant defect, micro-crack, pinhole arrangement and polymer molecule segment polar groups, can all cause water, oxygen with
And the infiltration of corrosive ion in the coating, and appearing in for these structures is inevitable in film forming procedure, traditional side
Method is to add modified filler in the polymer.
The filler of some high insulating can be added into traditional insulating corrosion protective coating, such as: glass flake, mica
The laminal filters such as piece.Wherein, graphene nano material has two-dimensional slice structure, in metal material, high molecular material and inorganic
Field of non-metallic materials has good application prospect.Graphene is considered being expected to become the revolutionary material of a new generation after silicon
Material, both at home and abroad constantly heats up to the research of graphene and its downstream product, excellent mechanical property and chemical inertness make its
Anticorrosive paint, Material Field attract wide attention.Graphene can play the role of physical isolation as critical material in the coating,
It hinders seawater, corrosive ion etc. to permeate to metal base, forms large area protective layer, combine closely largely with resin
The upper mechanical performance for improving coating, special physical structure and surface characteristic can greatly promote the antiseptic property of coating.
Chinese invention patent application number 201711042386.2 discloses a kind of preparation method of graphene anticorrosive paint,
Specific steps include: to mix 1 ~ 10 part of graphene microchip, 20 ~ 25 parts of dimethyl sulfoxides, are heated heat preservation 60 minutes, phase
Between remained a constant speed stirring using mixing arrangement, take 2 ~ 5 parts of hexamethylphosphoramide to be put into the mixture of previous step and stir
20 minutes, 5 ~ 10 parts of polyvinylpyrrolidone is taken, is stirred in the mixture for the acquisition being mixed into after being heated in previous step
It mixes, 50 ~ 80 parts of oil paint is taken to be heated to 50 degrees Celsius, by mixed 60 points of the stirring of the mixture obtained in previous step
Clock, slowly cool to room temperature is sufficient.
Chinese invention patent application number 201711118780.X discloses a kind of graphene modified water-soluble anticorrosive paint, by weight
Measuring part includes: 10 ~ 20 parts of graphene modified acrylic acid emulsion, 20 ~ 40 parts of aqueous epoxy resins, 1 ~ 10 part of emulsifier, aqueous ring
10 ~ 20 parts of oxygen curing agent, 0.1 ~ 30 part of the first neutralizer, 0.1 ~ 10 part of wetting agent, 0.1 ~ 10 part of dispersing agent and 5 ~ 50 parts of filler.
Graphene is added in acrylic emulsion by way of being connected chemically, improves dispersibility of the graphene in coating system
And the compatibility with other base-materials.
Chinese invention patent application number 201711230115.X discloses a kind of graphene anticorrosive paint and its preparation side
Method.Graphene anticorrosive paint includes component A and B component, wherein the component A is by including that the raw material of following parts by weight is prepared into
It arrives: 100 parts of matrix resin, 10 ~ 20 parts of graphene, 5 ~ 15 parts of nanometer yttrium aluminum garnet, 20 ~ 40 parts of filler, dispersing agent 0.5 ~ 2
Part, 1 ~ 3 part of sagging inhibitor, 0.5 ~ 1 part of promotor, 0.3 ~ 1.5 part of defoaming agent；The B component is curing agent, parts by weight 10
~ 40 parts.
Chinese invention patent application number 201610368435.0 discloses a kind of polymolecularity single-layer graphene heat dissipation anti-corrosion
Coating, preparation method and its application, each component mass parts are as follows: molten 20 ~ 30 parts of type Hydroxylated acrylic resin of oil, curing agent 2 ~ 4
Part, 6.5 ~ 7 parts and 55 ~ 65 parts of solvent of high dispersive type single-layer graphene slurry, the number is number；Wherein, solvent be isopropanol,
At least one of dimethylbenzene, butyl acetate, toluene or N-Methyl pyrrolidone；Curing agent be aliphatic polyurethane curing agent or
Aromatic urethane curing agent.
According to above-mentioned, the graphene filler of anticorrosive paint is used in existing scheme, since graphene has high-specific surface area
And the characteristics of nanoscale, so that it is easily reunited when carrying out direct combination with fluoropolymer resin, i.e. graphene film strata
It gathers together, the little particle that formation does not disperse, rather than the structure of sheet.This distributional pattern does not simply fail to improve the resistance of coating
Separating performance can form a large amount of pore structure in coat inside instead, so that corrosive medium is easier to penetrate coating and causes metal
The corrosion of matrix.In consideration of it, can have the invention proposes a kind of heavy antisepsis dry powder paint special graphite alkene masterbatch and preparation method
Effect solves above-mentioned technical problem.
Summary of the invention
When being used for anticorrosive paint insulating filler for the wider graphene of current application, because graphene is easily rolled into a ball
It is poly-, so that the barrier property of coating not rationality, and then antiseptic property is affected, the present invention proposes that a kind of heavy antisepsis dry powder paint is special
Barrier property and anti-corrosion are improved with graphene masterbatch and preparation method so as to improve dispersibility of the graphene in coating
Effect.
Specific technical solution of the present invention is as follows:
A kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch, comprising the following steps:
(1) graphene microchip, flaky inorganic carrier being added in deionized water, ultrasonic disperse is uniform, and ageing 24 is filtered, and it is dry,
The flaky inorganic carrier of load graphene microchip is made；
(2) the flaky inorganic carrier of step (1) load graphene microchip obtained is uniformly mixed with dispersing agent, catalyst, is connect
Be added to containing initiator, photocurable polyurethane acrylate prepolymer deionized water in, ultrasonic disperse is uniform, be made can
The chip carrier of curable urethane acrylate performed polymer cladding；
(3) compound sheet carrier made from step (2) is carried out spraying atomization granulation under uv illumination, utilizes UV in atomization process
Irradiation, so that carrier surface solidifies prepolymer reaction, the thermoplastic polyurethane acrylate films of generation fix graphene, receive
Heavy antisepsis dry powder paint special graphite alkene masterbatch is made in collection.
A kind of cured oligomer of the UV of high comprehensive performance, has when photo curable polyurethane acrylate prepolymer
Curing rate is fast, and easily with other resin miscibles, toughness, adhesive force, heat resistance, wearability and the chemical-resistant of film be good etc. special
Point.Graphene microchip is fixed on sheet using the photocuring reaction of photo curable polyurethane acrylate prepolymer by the present invention
In inorganic matter carrier, atomization is granulated and obtains the graphene masterbatch of high concentration, and directly addition is in heavy antisepsis dry powder paint when use
Mixing carries out hot melting spraying, can effectively solve the problems, such as that graphene dispersion is uneven easy to reunite.
Preferably, step (1) the flaky inorganic carrier is the sheet sericite that radius-thickness ratio is greater than 50.
Preferably, step (2) dispersing agent is tannic acid, linoleic acid sodium, sodium pyrophosphate, at least one in sodium orthophosphate
Kind.
Preferably, step (2) catalyst be titanium tetrachloride, titanium trichloride, vanadium oxytrichloride, in triiodo vanadyl at least
It is a kind of.
Preferably, step (2) initiator be 1173,819, at least one of TPO.
Preferably, the degree of polymerization of step (2) the photocurable polyurethane acrylate prepolymer is 200 ~ 400.
Preferably, in the raw material, 13 ~ 16 parts by weight of graphene microchip, 25 ~ 30 parts by weight of flaky inorganic carrier, dispersion
1 ~ 2 parts by weight of agent, 1 ~ 2 parts by weight of catalyst, 1 ~ 3 parts by weight of initiator, photocurable polyurethane acrylate prepolymer 22 ~ 25
Parts by weight, 22 ~ 37 parts by weight of deionized water.
Preferably, step (3) UV irradiation uses UV cure lamp, and ultraviolet wavelength is 300 ~ 600nm, and power is 50 ~
150W, time are 10 ~ 15min.
Preferably, the atomised form that step (3) atomization is granulated is one of centrifugal, pressure type, air-flowing type, spray
Pressure is 2 ~ 5MPa out, and temperature is 150 ~ 200 DEG C.
The present invention also provides a kind of heavy antisepsis dry powder paint special graphite alkene masterbatch that above-mentioned preparation method is prepared.In advance
It first is aged preload graphene microchip in flaky inorganic carrier, then mixes it with auxiliary agents such as dispersing agents, is added to containing initiation
It is uniformly mixed in the photocurable polyurethane acrylate prepolymer of agent, keeps one layer of chip carrier surface package photo curable pre-
Then aggressiveness sprays atomization and is granulated, solidify prepolymer reaction using UV irradiation carrier surface in atomization process, the thermoplastic of generation
Property urethane acrylate film graphene is fixed, collection obtain heavy antisepsis dry powder paint special graphite alkene masterbatch.
Well known, simple graphene microchip is difficult to disperse, for this purpose, the present invention is by graphene microchip preload in big sheet
Sericite, then further solidified using curable urethane acrylate performed polymer and graphene be firmly fixed to thin,tough silk cloud
Mother, to realize good dispersion.
The present invention provides a kind of heavy antisepsis dry powder paint special graphite alkene masterbatch and preparation methods, with prior art phase
Than the feature and excellent effect protruded is:
1, propose graphene microchip is fixed on flaky inorganic object carrier using photocuring reaction that prepare heavy antisepsis dry powder paint special
With the method for graphene masterbatch.
2, graphene masterbatch produced by the present invention, directly addition is mixed in heavy antisepsis dry powder paint and is heated when use
It sprays, urethane acrylate and coating matrix have good compatibility after heating melting, it is ensured that graphene microchip can be uniform
It is dispersed in coating.
3, when graphene masterbatch produced by the present invention is used for high anticorrosive paint, the carrier loaded graphene of the sheet of high dispersive
Be conducive to form uniform barrier layer in coating, assign coating excellent antiseptic property, anticorrosive paint is substantially improved and is protected
Protect the service life of metallic matrix.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
Preparation process are as follows:
(1) sericite of graphene microchip, flaky inorganic carrier radius-thickness ratio greater than 50 is added in deionized water, ultrasonic disperse is equal
Even, ageing for 24 hours, is filtered, dry, and the flaky inorganic carrier of load graphene microchip is made；
(2) the flaky inorganic carrier of step (1) load graphene microchip obtained is uniformly mixed with dispersing agent, catalyst, is connect
Be added to containing initiator, photocurable polyurethane acrylate prepolymer deionized water in, ultrasonic disperse is uniform, be made can
The chip carrier of curable urethane acrylate performed polymer cladding；Dispersing agent is tannic acid；Catalyst is titanium tetrachloride；Cause
Agent is TPO；
In raw material, 15 parts by weight of graphene microchip, 27 parts by weight of flaky inorganic carrier, 1 parts by weight of dispersing agent, 2 weight of catalyst
Part, 2 parts by weight of initiator, 23 parts by weight of photocurable polyurethane acrylate prepolymer, 30 parts by weight of deionized water；
(3) compound sheet carrier made from step (2) is carried out spraying atomization granulation under uv illumination, utilizes UV in atomization process
Irradiation, so that carrier surface solidifies prepolymer reaction, the thermoplastic polyurethane acrylate films of generation fix graphene, receive
Heavy antisepsis dry powder paint special graphite alkene masterbatch is made in collection；UV irradiation uses UV cure lamp, ultraviolet wavelength 500nm, power
For 70W, time 13min；Atomization be granulated atomised form be it is centrifugal, ejections pressure be 3MPa, temperature be 170 DEG C.
Embodiment 2
Preparation process are as follows:
(1) sericite of graphene microchip, flaky inorganic carrier radius-thickness ratio greater than 50 is added in deionized water, ultrasonic disperse is equal
Even, ageing for 24 hours, is filtered, dry, and the flaky inorganic carrier of load graphene microchip is made；
(2) the flaky inorganic carrier of step (1) load graphene microchip obtained is uniformly mixed with dispersing agent, catalyst, is connect
Be added to containing initiator, photocurable polyurethane acrylate prepolymer deionized water in, ultrasonic disperse is uniform, be made can
The chip carrier of curable urethane acrylate performed polymer cladding；Dispersing agent is linoleic acid sodium；Catalyst is titanium trichloride；Draw
Sending out agent is 1173；
In raw material, 14 parts by weight of graphene microchip, 26 parts by weight of flaky inorganic carrier, 1 parts by weight of dispersing agent, 1 weight of catalyst
Part, 2 parts by weight of initiator, 23 parts by weight of photocurable polyurethane acrylate prepolymer, 233 parts by weight of deionized water；
(3) compound sheet carrier made from step (2) is carried out spraying atomization granulation under uv illumination, utilizes UV in atomization process
Irradiation, so that carrier surface solidifies prepolymer reaction, the thermoplastic polyurethane acrylate films of generation fix graphene, receive
Heavy antisepsis dry powder paint special graphite alkene masterbatch is made in collection；UV irradiation uses UV cure lamp, ultraviolet wavelength 400nm, power
For 70W, time 14min；The atomised form that atomization is granulated is pressure type, and ejection pressure is 3MPa, and temperature is 160 DEG C.
Embodiment 3
Preparation process are as follows:
(1) sericite of graphene microchip, flaky inorganic carrier radius-thickness ratio greater than 50 is added in deionized water, ultrasonic disperse is equal
Even, ageing for 24 hours, is filtered, dry, and the flaky inorganic carrier of load graphene microchip is made；
(2) the flaky inorganic carrier of step (1) load graphene microchip obtained is uniformly mixed with dispersing agent, catalyst, is connect
Be added to containing initiator, photocurable polyurethane acrylate prepolymer deionized water in, ultrasonic disperse is uniform, be made can
The chip carrier of curable urethane acrylate performed polymer cladding；Dispersing agent is linoleic acid sodium；Catalyst is triiodo vanadyl；Draw
Sending out agent is 819；
In raw material, 15 parts by weight of graphene microchip, 29 parts by weight of flaky inorganic carrier, 2 parts by weight of dispersing agent, 2 weight of catalyst
Part, 2 parts by weight of initiator, 24 parts by weight of photocurable polyurethane acrylate prepolymer, 26 parts by weight of deionized water；
(3) compound sheet carrier made from step (2) is carried out spraying atomization granulation under uv illumination, utilizes UV in atomization process
Irradiation, so that carrier surface solidifies prepolymer reaction, the thermoplastic polyurethane acrylate films of generation fix graphene, receive
Heavy antisepsis dry powder paint special graphite alkene masterbatch is made in collection；UV irradiation uses UV cure lamp, ultraviolet wavelength 500nm, power
For 120W, time 11min；The atomised form that atomization is granulated is air-flowing type, and ejection pressure is 4MPa, and temperature is 190 DEG C.
Embodiment 4
Preparation process are as follows:
(1) sericite of graphene microchip, flaky inorganic carrier radius-thickness ratio greater than 50 is added in deionized water, ultrasonic disperse is equal
Even, ageing for 24 hours, is filtered, dry, and the flaky inorganic carrier of load graphene microchip is made；
(2) the flaky inorganic carrier of step (1) load graphene microchip obtained is uniformly mixed with dispersing agent, catalyst, is connect
Be added to containing initiator, photocurable polyurethane acrylate prepolymer deionized water in, ultrasonic disperse is uniform, be made can
The chip carrier of curable urethane acrylate performed polymer cladding；Dispersing agent is sodium orthophosphate；Catalyst is triiodo vanadyl；Draw
Sending out agent is 1173；
In raw material, 13 parts by weight of graphene microchip, 25 parts by weight of flaky inorganic carrier, 1 parts by weight of dispersing agent, 1 weight of catalyst
Part, 1 parts by weight of initiator, 22 parts by weight of photocurable polyurethane acrylate prepolymer, 37 parts by weight of deionized water；
(3) compound sheet carrier made from step (2) is carried out spraying atomization granulation under uv illumination, utilizes UV in atomization process
Irradiation, so that carrier surface solidifies prepolymer reaction, the thermoplastic polyurethane acrylate films of generation fix graphene, receive
Heavy antisepsis dry powder paint special graphite alkene masterbatch is made in collection；UV irradiation uses UV cure lamp, ultraviolet wavelength 300nm, power
For 50W, time 15min；Atomization be granulated atomised form be it is centrifugal, ejections pressure be 2MPa, temperature be 150 DEG C.
Embodiment 5
Preparation process are as follows:
(1) sericite of graphene microchip, flaky inorganic carrier radius-thickness ratio greater than 50 is added in deionized water, ultrasonic disperse is equal
Even, ageing for 24 hours, is filtered, dry, and the flaky inorganic carrier of load graphene microchip is made；
(2) the flaky inorganic carrier of step (1) load graphene microchip obtained is uniformly mixed with dispersing agent, catalyst, is connect
Be added to containing initiator, photocurable polyurethane acrylate prepolymer deionized water in, ultrasonic disperse is uniform, be made can
The chip carrier of curable urethane acrylate performed polymer cladding；Dispersing agent is tannic acid；Catalyst is titanium tetrachloride；Cause
Agent is TPO；
In raw material, 13 parts by weight of graphene microchip, 25 parts by weight of flaky inorganic carrier, 2 parts by weight of dispersing agent, 2 weight of catalyst
Part, 3 parts by weight of initiator, 25 parts by weight of photocurable polyurethane acrylate prepolymer, 35 parts by weight of deionized water；
(3) compound sheet carrier made from step (2) is carried out spraying atomization granulation under uv illumination, utilizes UV in atomization process
Irradiation, so that carrier surface solidifies prepolymer reaction, the thermoplastic polyurethane acrylate films of generation fix graphene, receive
Heavy antisepsis dry powder paint special graphite alkene masterbatch is made in collection；UV irradiation uses UV cure lamp, ultraviolet wavelength 600nm, power
For 150W, time 10min；The atomised form that atomization is granulated is pressure type, and ejection pressure is 5MPa, and temperature is 200 DEG C.
Comparative example 1
Preparation process are as follows:
(1) graphene microchip, blanc fixe are added in deionized water, ultrasonic disperse is uniform, and ageing for 24 hours, is filtered, dry, system
The barium sulfate of graphene microchip must be loaded；
(2) barium sulfate of step (1) load graphene microchip obtained is uniformly mixed with dispersing agent, catalyst, is subsequently added into
Into the deionized water containing initiator, photocurable polyurethane acrylate prepolymer, ultrasonic disperse is uniform, and photocurable is made
The carrier of polyurethane acrylate prepolymer cladding；Dispersing agent is tannic acid；Catalyst is titanium tetrachloride；Initiator is TPO；
In raw material, 13 parts by weight of graphene microchip, 2 parts by weight of dispersing agent, 2 parts by weight of catalyst, cause 25 parts by weight of barium sulfate
3 parts by weight of agent, 25 parts by weight of photocurable polyurethane acrylate prepolymer, 35 parts by weight of deionized water；
(3) compound sheet carrier made from step (2) is carried out spraying atomization granulation under uv illumination, utilizes UV in atomization process
Irradiation, so that carrier surface solidifies prepolymer reaction, the thermoplastic polyurethane acrylate films of generation fix graphene, receive
Heavy antisepsis dry powder paint special graphite alkene masterbatch is made in collection；UV irradiation uses UV cure lamp, ultraviolet wavelength 600nm, power
For 150W, time 10min；The atomised form that atomization is granulated is pressure type, and ejection pressure is 5MPa, and temperature is 200 DEG C.
Comparative example 1 does not make carrier using the sericite of high radius-thickness ratio, but does carrier, stone to be similar to spherical barium sulfate
Black alkene microplate forms ball shape, although well dispersed, two-dimensional effects are poor, and the laminated insulations effect formed in coating is
It reduces.
The masterbatch that embodiment 1-5, comparative example 1 obtain is used for dry powder paint, test method are as follows:
Powdered graphite alkene masterbatch is mixed with polyureas with mass ratio 1:30, hot melting spraying forms 0.3mm thickness anti-corrosion in metal surface
Coating, be soaked in concentration be 3.5% sodium chloride solution in, temperature be 80 DEG C, continuous dipping 5000h, respectively 1000h,
Coating surface situation is observed when 3000h and 5000h.Testing coating surface condition is as shown in table 1.
Table 1:
Claims (10)
1. a kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch, which comprises the following steps:
(1) graphene microchip, flaky inorganic carrier are added in deionized water, ultrasonic disperse is uniform, and ageing for 24 hours, is filtered, and does
It is dry, the flaky inorganic carrier of load graphene microchip is made；
(2) the flaky inorganic carrier of step (1) load graphene microchip obtained is uniformly mixed with dispersing agent, catalyst, is connect
Be added to containing initiator, photocurable polyurethane acrylate prepolymer deionized water in, ultrasonic disperse is uniform, be made can
The chip carrier of curable urethane acrylate performed polymer cladding；
(3) compound sheet carrier made from step (2) is carried out spraying atomization granulation under uv illumination, utilizes UV in atomization process
Irradiation, so that carrier surface solidifies prepolymer reaction, the thermoplastic polyurethane acrylate films of generation fix graphene, receive
Heavy antisepsis dry powder paint special graphite alkene masterbatch is made in collection.
2. a kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch according to claim 1, it is characterised in that:
Step (1) the flaky inorganic carrier is the sheet sericite that radius-thickness ratio is greater than 50.
3. a kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch according to claim 1, it is characterised in that:
Step (2) dispersing agent is at least one of tannic acid, linoleic acid sodium, sodium pyrophosphate, sodium orthophosphate.
4. a kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch according to claim 1, it is characterised in that:
Step (2) catalyst is at least one of titanium tetrachloride, titanium trichloride, vanadium oxytrichloride, triiodo vanadyl.
5. a kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch according to claim 1, it is characterised in that:
Step (2) initiator is 1173,819, at least one of TPO.
6. a kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch according to claim 1, it is characterised in that:
The degree of polymerization of step (2) the photocurable polyurethane acrylate prepolymer is 200 ~ 400.
7. a kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch according to claim 1, it is characterised in that:
In the raw material, 13 ~ 16 parts by weight of graphene microchip, 25 ~ 30 parts by weight of flaky inorganic carrier, 1 ~ 2 parts by weight of dispersing agent, catalysis
1 ~ 2 parts by weight of agent, 1 ~ 3 parts by weight of initiator, 22 ~ 25 parts by weight of photocurable polyurethane acrylate prepolymer, deionized water
22 ~ 37 parts by weight.
8. a kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch according to claim 1, it is characterised in that:
Step (3) UV irradiation uses UV cure lamp, and ultraviolet wavelength is 300 ~ 600nm, and power is 50 ~ 150W, and the time is 10 ~
15min。
9. a kind of preparation method of heavy antisepsis dry powder paint special graphite alkene masterbatch according to claim 1, it is characterised in that:
The atomised form that step (3) atomization is granulated is one of centrifugal, pressure type, air-flowing type, and ejection pressure is 2 ~ 5MPa,
Temperature is 150 ~ 200 DEG C.
10. a kind of heavy antisepsis dry powder paint special graphite alkene that any one of claim 1 ~ 9 preparation method is prepared is female
Material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564183A (en) * | 2019-08-22 | 2019-12-13 | 魏军刚 | graphene-coated mica material and preparation method and application thereof |
| CN113024934A (en) * | 2021-04-27 | 2021-06-25 | 康泰塑胶科技集团有限公司 | High-performance gas pipe and preparation method thereof |
| CN113150348A (en) * | 2021-04-28 | 2021-07-23 | 安徽杰蓝特新材料有限公司 | Corrosion-resistant PE water supply pipe and preparation method thereof |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564183A (en) * | 2019-08-22 | 2019-12-13 | 魏军刚 | graphene-coated mica material and preparation method and application thereof |
| CN113024934A (en) * | 2021-04-27 | 2021-06-25 | 康泰塑胶科技集团有限公司 | High-performance gas pipe and preparation method thereof |
| CN113150348A (en) * | 2021-04-28 | 2021-07-23 | 安徽杰蓝特新材料有限公司 | Corrosion-resistant PE water supply pipe and preparation method thereof |
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Application publication date: 20190118 |