CN108003756A - A kind of storage tank liner graphene photocureable coating and its application method and preparation method - Google Patents

A kind of storage tank liner graphene photocureable coating and its application method and preparation method Download PDF

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Publication number
CN108003756A
CN108003756A CN201711333019.8A CN201711333019A CN108003756A CN 108003756 A CN108003756 A CN 108003756A CN 201711333019 A CN201711333019 A CN 201711333019A CN 108003756 A CN108003756 A CN 108003756A
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graphene
storage tank
photocureable coating
tank liner
parts
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林瑞荣
庄焱
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Xiamen Zhongkai New Material Graphene Technology Co Ltd
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Xiamen Zhongkai New Material Graphene Technology Co Ltd
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C09D163/10Epoxy resins modified by unsaturated compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065After-treatment
    • B05D3/067Curing or cross-linking the coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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    • B05D5/00Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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    • B05D5/00Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/12Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/22Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
    • B05D7/227Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of containers, cans or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
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    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24Electrically-conducting paints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2504/00Epoxy polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2518/00Other type of polymers
    • B05D2518/10Silicon-containing polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2601/00Inorganic fillers
    • B05D2601/20Inorganic fillers used for non-pigmentation effect
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Abstract

The present invention, which provides a kind of storage tank liner graphene photocureable coating and its application method and preparation method, the photocureable coating, includes the component of following weight proportion:30~50 parts of acrylic acid epoxy resin;10~23 parts of silicone oligomer;5~8 parts of modified light-sensitive graphene;0.5~1 part of photoinitiator;5~15 parts of reactive diluent;3~6 parts of pigment;4~8 parts of filler;1~5 part of other auxiliary agents;40~60 parts of solvent.A kind of storage tank liner graphene photocureable coating provided by the invention and its application method and preparation method, using epoxy acrylic resin and silicone oligomer as resin matrix, graphene is passed through into modified obtained modified light-sensitive graphene, solve the agglomeration traits of graphene, impart its light-cured performance, the electric conductivity of modified light-sensitive graphene is improved at the same time, the needs of making the photocureable coating that there is outstanding anti-corrosion capability and static conductive ability, can meet oil gas storage tank in actual use.

Description

A kind of storage tank liner graphene photocureable coating and its application method and preparation method
Technical field
The present invention relates to photocureable coating technical field, more particularly to a kind of storage tank liner graphene photocureable coating and its Application method and preparation method.
Background technology
Oil gas storage tank is the important equipment in the places such as oil depot, gas station, in order to ensure that the long-time of oil gas storage tank makes safely With, it is necessary to coat corresponding anticorrosive coating inside and outside storage tank, wherein, storage tank internal layer coating also needs to ensure with enough strong Degree and static conductive ability.Liquid petroleum product is stored in oil gas storage tank, can be because of friction under the situations such as flowing, mixing, stirring And electrostatic charge is produced, when the electrostatic charge speed of generation is more than electrostatic charge export speed, the accumulation of electrostatic charge is may result in, is made quiet Voltage constantly raises, and ultimately causes point discharge.When the electrostatic charge discharge energy of accumulation is in flammable oil product steam and air When in the range of explosive limits of mixture, the harm of electrostatic fire and explosion may occur at any time.In recent years, as petrochemical industry is produced The fast development of industry, the understanding that people endanger electrostatic caused by possibility in terms of petrochemical industry is also constantly deepened, to oil gas storage tank Awareness of safety is greatly improved, oil gas storage tank with electrostatic anticorrosive coating product also constantly undergo technological innovation with into Step, and it is increasingly becoming the design requirement of protection oil gas storage tank safety.
Graphene is the tightly packed single layer of carbon atom into two-dimentional six side's honeycomb crystal lattice structures, between each carbon atom with sp2Hybrid form is connected.On microcosmic, single-layer graphene film is not the flat structure of two dimension, but with " on nanoscale " The single layer structure of stable wavy, is presently found unique existing Two Dimensional Free state atomic crystal;Macroscopically, graphene The fullerene of zero dimension can be warped into, one-dimensional carbon nanotubes is rolled into or is stacked to the graphite of three-dimensional.The two of graphene uniqueness The presence for the carbon hexatomic ring stablized in cycle honeycomb lattice structure is tieed up, imparts its excellent performance:The thickness of single-layer graphene Degree is only 0.35nm, is to be currently known most light most thin material;Its electron mobility at room temperature is 2 × 105cm2·V-1· s-1, it is the 1/300 of the light velocity, theoretical specific surface area can reach 2630m2·g-1, all band light absorbs only have 2.3%, thermal conductivity Up to 5000Wm-1·K-1, Young's modulus is more than 1100GPa, and tensile strength is more than 130GPa, and toughness is very good, works as application During external mechanical force, carbon atom can be bent and deformed to adapt to external force, without rearranging carbon atom, be so maintained for The stabilization of structure.Therefore, graphene is a kind of very extensive carbon material of application potential, novel reaction separation, new material, There is huge application prospect in numerous industries such as energy conservation and environmental protection.
At present, the places such as gas station oil gas storage tank after long-time use, difference can occur for its lining coating The peeling of degree, electrostatic conductive performance, Corrosion Protection to oil gas storage tank impact, and increase the danger of oil gas storage tank, because This needs to carry out special transformation to the liner layer of oil gas storage tank, again storage tank liner coating of the coating with excellent properties.Mesh Before, the oil gas storage tank static conductive coating of in the market has traditional Corrosion Protection and special anti-static function concurrently, the type Static conductive coating is usually the static conductive coating of addition type, conductive material is added in non-conductive resin, conductive filler grain Contact with each other to form continuous network chain between son, electric charge can be in online free movement, so that coated conductive.And currently used lead Electrostatic coatings, for filler, when its additive amount is excessive, can cause static conductive coating to prevent generally with metal, graphite, conductive mica powder etc. Corrosive nature declines, if additive amount is too small, static conductive ability declines, therefore the more difficult control of its balance, while is filled out more than The Corrosion Protection and electrostatic conductive performance of coating made from material are poor, it is difficult to which the anticorrosion and static conductive for meeting oil gas storage tank will Ask.
The content of the invention
For solve the Corrosion Protection of oil gas storage tank anticorrosion static conductive coating of the prior art mentioned above, lead it is quiet Electrical property can not meet demand the problem of, the present invention provide a kind of storage tank liner graphene photocureable coating and its application method and Preparation method, storage tank liner graphene photocureable coating provided by the invention have excellent static conductive and anti-corrosion capability, can To meet the anticorrosion and static conductive requirement of oil gas storage tank in actual use, oil gas storage tank is avoided to cause because of electrostatic accumulation Contingency.
The present invention adopts the following technical scheme that:
A kind of storage tank liner graphene photocureable coating, includes the component of following weight proportion:
Further, the photocureable coating includes the component of following weight proportion:
Further, the modified light-sensitive graphene is prepared by the following method:
Step 1: carrying out oxidation processes to graphene using Hummers methods, graphene oxide is made;
Step 2: aniline is dispersed in hydrochloric acid solution, adds ammonium persulfate acid and be stirred continuously, it is molten that polyaniline is made Liquid;
Step 3: add graphene oxide into polyaniline solutions, ultrasonic vibration is carried out after stirring, add concentrated nitric acid and after Continuous stirring, 130 DEG C~160 DEG C constant temperature reflux 1.5h~2h;
Step 4: hexamethylene diisocyanate, vinyl carbazole are added in water removal n,N-Dimethylformamide, it is passed through Nitrogen is simultaneously warming up to 70 DEG C~90 DEG C, adds tetraethyl amine bromide and resorcinol, stirs and seals reaction 5h~8h;
It is made Step 5: step 4 is made product and adds step 3 in product, adds hydrazine hydrate, be warming up to 50 DEG C~80 DEG C, stirring reaction 6h~8h, uses membrane filtration, washing is dried to obtain modified light-sensitive graphene after cooling.
Further, the epoxy acrylic resin is made by epoxy resin and acrylic acid through esterification by ring opening, the epoxy Resin is one kind or more in bisphenol A type epoxy resin, novolac epoxy resin, aliphatic epoxy resin or cycloaliphatic epoxy resin Kind mixing.
Further, the reactive diluent is polyfunctional acrylic ester, selected from tri (propylene glycol) diacrylate, One or more in trimethylolpropane trimethacrylate, tripropylene glycol diacrylate, pentaerythritol triacrylate Mixing.
Further, the photoinitiator is 2- methyl isophthalic acids-(4- methyl mercaptos phenyl) -2- morpholine -1- acetone, 2,4,6- tri- Methylformyl diphenyl phosphine oxide, isopropyl thioxanthone, Phenylsulfanylphenyl diphenyl sulfosalt, double (4,4 '-thioether triphens Base sulphur) one or more mixing in salt.
Further, the pigment is zinc oxide, the mixture of titanium dioxide;The filler is calcium carbonate, talcum powder, sulphur The mixture of sour barium;Other described auxiliary agents include levelling agent, wetting dispersing agent, defoamer, polymerization inhibitor;The levelling agent is fluorine table One or both of face activating agent or silicone acrylate mix;The wetting dispersing agent is silane coupling agent, multivalence carboxylic One or both of hydrochlorate mixes;The defoamer is tributyl phosphate, a kind of latter two mixing in polydimethyl siloxane fluid; The polymerization inhibitor is the mixing of one or both of p-hydroxyanisole, 2,6- toluene di-tert-butyl phenols.
Further, the solvent is that the one or more in n,N-Dimethylformamide, ethyl acetate, butyl acetate are mixed Close.
The present invention also provides a kind of preparation method of storage tank liner graphene photocureable coating as described above, including with Lower step:
Step 1:Acrylic acid epoxy resin, silicone oligomer are dissolved in solvent in a reservoir, 200 turns/min~300 Turn/min speed under stir 30min~50min;
Step 2:Under dark conditions, modified light-sensitive graphene is added into container, 300 turns/min~400 turn/min's 20min~30min is stirred under speed;
Step 3:Photoinitiator, reactive diluent, pigment, filler and other auxiliary agents are added into container, 300 turns/ 40min~60min is stirred under min~350 turn/min speed, you can obtain the storage tank liner graphene photocureable coating.
The present invention also provides a kind of application method of storage tank liner graphene photocureable coating:Comprise the following steps that:
Step 1: carrying out processing of rust removing to oil gas storage tank inner wall, reservoir walls surface corrosion, oxide skin, greasy dirt are removed, is protected Demonstrate,prove the substantially smooth no projection of reservoir walls;
Step 2: repaired to reservoir walls defect, repairing using graphene photocureable coating provided by the invention with Chopped mat mixed material, and with ultra violet lamp and it is fully cured;
Step 3: carrying out primary coat construction, graphene photocureable coating provided by the invention is subjected to even application, applies thickness Spend for 2.3mm~2.5mm, and with ultra violet lamp and it is fully cured;
Step 4: after priming coat curing, glass fibre is laid on priming coat, is provided using the present invention after dilution Graphene photocureable coating wet-out fiberglass, when graphene photocureable coating is not completely dried, be laid with second layer glass Fiber, soaks second layer glass fibre using the graphene photocureable coating provided by the invention after dilution;It is repeated above-mentioned Process, until the glass fibre and photocureable coating composite bed thickness are 3.5mm~4mm;After last layer soaks, use Ultra violet lamp simultaneously makes the glass fibre be fully cured with photocureable coating composite coating;
Step 5: after glass fiber composite curing, graphene light-cured resin provided by the invention, the thickness are sprayed Spend for 1mm~1.3mm, it is fully cured with ultra violet lamp afterwards.
By above construction procedure, storage tank liner graphene photocureable coating provided by the invention is in actual application In, high mechanical properties coating can be provided for oil gas storage tank, comprehensive performance is extremely outstanding.
The present invention is modified by graphene, new modified light-sensitive graphene has been synthesized, in the modified light-sensitive graphite The surface of alkene has the polyaniline of modified, and when being doped with Bronsted acid, Hydrogen Proton is transferred on strand polyaniline, raw Into charged first excitation state polaron, the quinone ring of intramolecular disappears, electronics member redistribution, and the positive charge delocalization on N courtyards is to greatly In conjugatedπbond, polyaniline is set to show high conductivity, while the carbazole group and oxygen reduction contained in the modified light-sensitive graphene Between graphite alkene there is strong pi-pi accumulation to act on, further change the distribution of the electron cloud on polyaniline, enhance poly- The electric conductivity of aniline, while the compatibility of graphene and epoxy acrylic resin and silicone oligomer is also improved, avoid Agglomeration traits of the graphene in dispersed phase, on the other hand impart graphene light sensitivity, can with epoxy acrylic Photocured cross-linked reaction occurs for resin and silicone oligomer.
Graphene equally has outstanding electric conductivity, the dispersed rear formation conductive path in resin matrix, and with Resin matrix firmly connects to form entirety, rapidly discharges the electrostatic produced in storage tank, and due to the lamellar structure of graphene, Resin matrix can form stepped construction after curing, and effectively block, extend the process that corrosive medium penetrates into coating, so as to greatly carry The high Corrosion Protection of coating.Graphene also has stronger heat conductivility in itself, can be rapid by the heat in oil gas storage tank Discharge, prevents from overheating.
Using epoxy acrylic resin as main film forming substance, appropriate silicone oligomer is added, can be provided for film well Pliability, lower temperature resistance, moisture-proof, weatherability, improve the comprehensive performance of coating.
Photoinitiator preferably using cationic initiator, as Phenylsulfanylphenyl diphenyl sulfosalt, it is double (4,4 '-thioether three Phenyl sulphur) mixing of one or both of salt, cured film volume contraction can be solved the problems, such as using cationic initiator, improved Adhesive force of the light solidifying coating to metal.
A kind of storage tank liner graphene photocureable coating provided by the invention and its application method and preparation method, with epoxy Acrylic resin and silicone oligomer are resin matrix, and graphene is passed through modified obtained modified light-sensitive graphene, are solved The agglomeration traits of graphene, while the electric conductivity of modified light-sensitive graphene is improved, its light-cured performance is imparted, make this Photocureable coating has outstanding static conductive ability and anti-corrosion capability, can meet the need of oil gas storage tank in actual use Ask.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer Technical solution be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Lower all other embodiments obtained, belong to the scope of protection of the invention.
Embodiment provided by the invention is shown in Table 1:
Table 1
Specific preparation method is as follows:
Embodiment 1:
Step 1:40 parts of acrylic acid epoxy resins, 16 parts of silicone oligomers are dissolved in 50 parts of solvents in a reservoir, 35min is stirred under 250 turns/min speed;
Step 2:Under dark conditions, 6 parts of modified light-sensitive graphenes are added into container, are stirred under the speed of 300 turns/min Mix 25min;
Step 3:0.8 part of photoinitiator of addition, 10 portions of reactive diluents, 4 parts of pigment, 5 parts of fillers and 1 part into container Other auxiliary agents, 45min is stirred under 300 turns/min speed, you can obtains the storage tank liner graphene photocureable coating.
Embodiment 2:
Step 1:42 parts of acrylic acid epoxy resins, 16 parts of silicone oligomers are dissolved in 51 parts of solvents in a reservoir, 35min is stirred under 250 turns/min speed;
Step 2:Under dark conditions, 7 parts of modified light-sensitive graphenes are added into container, are stirred under the speed of 300 turns/min Mix 25min;
Step 3:0.8 part of photoinitiator of addition, 11 portions of reactive diluents, 4 parts of pigment, 5 parts of fillers and 1 part into container Other auxiliary agents, 45min is stirred under 300 turns/min speed, you can obtains the storage tank liner graphene photocureable coating.
Embodiment 3:
Step 1:42 parts of acrylic acid epoxy resins, 18 parts of silicone oligomers are dissolved in 53 parts of solvents in a reservoir, 35min is stirred under 250 turns/min speed;
Step 2:Under dark conditions, 8 parts of modified light-sensitive graphenes are added into container, are stirred under the speed of 300 turns/min Mix 25min;
Step 3:0.9 part of photoinitiator, 11 portions of reactive diluents, 5 parts of pigment, 6 parts of fillers and 1.2 are added into container Other auxiliary agents of part, stir 45min, you can obtain the storage tank liner graphene photocureable coating under 300 turns/min speed.
Wherein, in the preparation method of modified light-sensitive graphene, using the molfraction of graphene used as 1, remaining raw material Calculated compared with the molfraction of graphene used, raw materials used molfraction proportioning is as shown in table 2:
Table 2
It is the embodiment of the specific preparation method of modified light-sensitive graphene below:
Step 1:Oxidation processes are carried out to graphene using Hummers methods, 1 part of graphene oxide is made;
Step 2:3.6 parts of aniline are dispersed in appropriate hydrochloric acid solution, controlled at 0 DEG C, with 300 turns/min speed 8 parts of ammonium persulfates are added while stirring, polyaniline solutions are made after reacting 2h;
Step 3:1 part of graphene oxide is added in polyaniline solutions, with ultrasound after the speed stirring 2h of 400 turns/min 4h is shaken, after adding 0.08 part of 96% concentrated nitric acid, is stirred with the speed of 400 turns/min, the constant temperature reflux 1.8h at 150 DEG C;
Step 4:1.3 parts of hexamethylene diisocyanates, 1.2 parts of vinyl carbazoles are added into 5 parts of water removal N, N- dimethyl In formamide, be passed through nitrogen and be warming up to 80 DEG C, add 0.02 part of tetraethyl amine bromide and 0.01 part of resorcinol, with 300 turns/ The speed of min stirs and seals reaction 6h;
Step 5:Step 4 is made product addition step 3 to be made in product, 2 parts of hydrazine hydrates is added, is warming up to 60 DEG C, With the speed stirring reaction 6h of 300 turns/min, modified light-sensitive graphene is obtained after using membrane filtration, washing dry after cooling.
The present invention also provides the embodiment of the application method of storage tank liner graphene photocureable coating, in practice of construction process In, comprise the following steps:
Step 1: processing of rust removing is carried out to oil gas storage tank inner wall, it is preferred to use dry ice derusting mode, removes reservoir walls table Face corrosion, oxide skin, greasy dirt, ensure the substantially smooth no projection of reservoir walls;
Step 2: repaired to reservoir walls defect, repairing using graphene photocureable coating provided by the invention with Chopped mat mixed material, and with ultra violet lamp and it is fully cured;
Step 3: carrying out primary coat construction, graphene photocureable coating provided by the invention is subjected to even application, applies thickness Spend for 2.5mm, and with ultra violet lamp and it is fully cured;
Step 4: after priming coat curing, glass fibre is laid on priming coat, uses the present invention diluted after 1 times The graphene photocureable coating wet-out fiberglass of offer, makes its natural drying, treats that graphene photocureable coating is not completely dried When, second layer glass fibre is laid with, soaks second layer glass using the graphene photocureable coating provided by the invention diluted after 1 times Glass fiber, makes its natural drying;The above process is repeated, until the glass fibre is with photocureable coating composite bed thickness 3.6mm;After last layer soaks, with ultra violet lamp and make the glass fibre and photocureable coating composite coating complete Cure;
Step 5: after glass fiber composite curing, graphene light-cured resin provided by the invention, the thickness are sprayed Spend for 1.2mm, it is fully cured with ultra violet lamp afterwards.
Since doping is equipped with glass fibre between in the coating, while using the graphene light solidifying coating structure of multilayer, Its shock resistance, electrostatic conductive performance, flexility etc. are all extremely outstanding, possess very excellent comprehensive performance.
To detect a kind of performance of the practical application of storage tank liner graphene photocureable coating provided by the invention, with common city It is comparative example to sell storage tank liner coating, and inventor carries out embodiment 1, embodiment 2, embodiment 3, comparative example under the same conditions Quality test, test result are as shown in table 3:
Table 3
From above testing performance index result, storage tank liner graphene photocureable coating provided by the invention, uses The method of general repetition spraying, its Corrosion Protection, electrostatic conductive performance are all very outstanding, can meet the application of oil gas storage tank Need.Further, after with reference to application method provided by the invention, inventor is to embodiment 1, embodiment 2, embodiment 3 and right The coating products of ratio, have carried out further test, test result is as shown in table 4 for its property indices:
Table 4
It can be obtained by table 3 and table 4, the double-layer storage tank liner graphene photocureable coating combination present invention provided by the invention carries After the application method of confession, its properties has all obtained larger lifting, under harsh rugged environment also can normal use, protect The application safety of oil gas storage tank is demonstrate,proved.And common commercially available storage tank liner coating, using application method provided by the invention Afterwards, its mechanical strength, Corrosion Protection etc. there has also been certain raising.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that:Its according to Can so modify to the technical solution described in foregoing embodiments, either to which part or all technical characteristic into Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (10)

1. a kind of storage tank liner graphene photocureable coating, it is characterised in that the photocureable coating includes following weight proportion Component:
2. a kind of storage tank liner graphene photocureable coating according to claim 1, it is characterised in that the photocuring applies Material includes the component of following weight proportion:
A kind of 3. storage tank liner graphene photocureable coating according to claim 1 or 2, it is characterised in that the modification Photosensitive graphene is prepared by the following method:
Step 1: carrying out oxidation processes to graphene using Hummers methods, graphene oxide is made;
Step 2: aniline is dispersed in hydrochloric acid solution, ammonium persulfate acid is added at 0~5 DEG C and is stirred continuously, polyphenyl is made Amine aqueous solution;
Step 3: adding graphene oxide into polyaniline solutions, ultrasonic vibration is carried out after stirring, concentrated nitric acid is added and continues to stir Mix, 130 DEG C~160 DEG C constant temperature reflux 1.5h~2h;
Step 4: hexamethylene diisocyanate, vinyl carbazole are added in water removal n,N-Dimethylformamide, nitrogen is passed through And 70 DEG C~90 DEG C are warming up to, tetraethyl amine bromide and resorcinol are added, stirs and seals reaction 5h~8h;
It is made Step 5: step 4 is made product and adds step 3 in product, adds hydrazine hydrate, be warming up to 50 DEG C~80 DEG C, Stirring reaction 6h~8h, uses membrane filtration after cooling, washing is dried to obtain modified light-sensitive graphene.
A kind of 4. storage tank liner graphene photocureable coating according to claim 1 or 2, it is characterised in that:The epoxy Acrylic resin is made by epoxy resin and acrylic acid through esterification by ring opening, and the epoxy resin is bisphenol A type epoxy resin, phenolic aldehyde One or more mixing in epoxy resin, aliphatic epoxy resin or cycloaliphatic epoxy resin.
A kind of 5. storage tank liner graphene photocureable coating according to claim 1 or 2, it is characterised in that:The activity Diluent is polyfunctional acrylic ester, selected from tri (propylene glycol) diacrylate, trimethylolpropane trimethacrylate, three One or more mixing in diacrylates of Poly-propylene glycol, pentaerythritol triacrylate.
A kind of 6. storage tank liner graphene photocureable coating according to claim 1 or 2, it is characterised in that:The light draws Hair agent is 2- methyl isophthalic acids-(4- methyl mercaptos phenyl) -2- morpholine -1- acetone, 2,4,6- trimethyl formoxyls diphenyl phosphine oxide, different One or more in propyl group thioxanthone, Phenylsulfanylphenyl diphenyl sulfosalt, double (4,4 '-thioether triphenyl sulphur) salt are mixed Close.
A kind of 7. storage tank liner graphene photocureable coating according to claim 1 or 2, it is characterised in that:The pigment For zinc oxide, the mixture of titanium dioxide;The filler is calcium carbonate, talcum powder, the mixture of barium sulfate;Other described auxiliary agents Including levelling agent, wetting dispersing agent, defoamer, polymerization inhibitor;The levelling agent is fluorine surfactant or silicone acrylate One or both of mixing;The wetting dispersing agent is the mixing of one or both of silane coupling agent, polyvalent carboxylic acid's salt;Institute Defoamer is stated as a kind of latter two mixing in tributyl phosphate, polydimethyl siloxane fluid;The polymerization inhibitor for p-hydroxyanisole, One or both of 2,6- toluene di-tert-butyl phenols mix.
A kind of 8. storage tank liner graphene photocureable coating according to claim 1 or 2, it is characterised in that:The solvent For the one or more mixing in n,N-Dimethylformamide, ethyl acetate, butyl acetate.
A kind of 9. preparation method of storage tank liner graphene photocureable coating as claimed in claim 1 or 2, it is characterised in that Comprise the following steps:
Step 1:Acrylic acid epoxy resin, silicone oligomer are dissolved in solvent in a reservoir, 200 turns/min~300 turn/ 30min~50min is stirred under min speed;
Step 2:Under dark conditions, modified light-sensitive graphene is added into container, in the speed of 300 turns/min~400 turn/min Lower stirring 20min~30min;
Step 3:Photoinitiator, reactive diluent, pigment, filler and other auxiliary agents are added into container, 300 turns/min~ 40min~60min is stirred under 350 turns/min speed, you can obtain the storage tank liner graphene photocureable coating.
A kind of 10. application method of storage tank liner graphene photocureable coating as claimed in claim 1 or 2, it is characterised in that Include the following steps:
Step 1: carrying out processing of rust removing to oil gas storage tank inner wall, reservoir walls surface corrosion, oxide skin, greasy dirt are removed, ensures storage The substantially smooth no projection of top tank structure;
Step 2: being repaired to reservoir walls defect, repairing is using graphene photocureable coating provided by the invention with being chopped Felt mixed material, and with ultra violet lamp and it is fully cured;
Step 3: carrying out primary coat construction, graphene photocureable coating provided by the invention is subjected to even application, coating layer thickness is 2.3mm~2.5mm, and it is fully cured with ultra violet lamp;
Step 4: after priming coat curing, glass fibre is laid on priming coat, uses the stone provided by the invention after dilution Black alkene photocureable coating wet-out fiberglass, when graphene photocureable coating is not completely dried, is laid with second layer glass fibre, Second layer glass fibre is soaked using the graphene photocureable coating provided by the invention after dilution;The above process is repeated, Until the glass fibre and photocureable coating composite bed thickness are 3.5mm~4mm;After last layer soaks, use is ultraviolet Light irradiation simultaneously makes the glass fibre be fully cured with photocureable coating composite coating;
Step 5: after glass fiber composite curing, graphene light-cured resin provided by the invention is sprayed, which is 1mm~1.3mm, is fully cured it with ultra violet lamp afterwards.
CN201711333019.8A 2017-12-13 2017-12-13 A kind of storage tank liner graphene photocureable coating and its application method and preparation method Pending CN108003756A (en)

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