CN106634435A - Eigenstate polyaniline coating special for corrosion prevention of oil field pipeline and preparation method of eigenstate polyaniline coating - Google Patents
Eigenstate polyaniline coating special for corrosion prevention of oil field pipeline and preparation method of eigenstate polyaniline coating Download PDFInfo
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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
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- 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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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention discloses an eigenstate polyaniline coating special for corrosion prevention of an oil field pipeline. The eigenstate polyaniline coating is characterized by consisting of a component A coating body and a component B coating body, wherein the component A coating body is prepared from eigenstate polyaniline, epoxy resin, a thixotropic agent, a pigment, a functional filler, a composite solvent and an adjuvant; the component B coating body is prepared from a curing agent and xylene. The preparation method comprises the following steps: respectively weighing the raw materials of the component A coating body and the component B coating body for later use; simultaneously mixing and activating a proper amount of the composite solvent with the eigenstate polyaniline and the thixotropic agent; feeding the rest of the raw materials and a prepared activated solution, carrying out stirring, adding glass beads for sanding, and filtering to obtain the component A coating body; uniformly mixing the raw materials of the component B coating body to obtain the component B coating body; respectively packaging, storing and transporting the component A coating body and the component B coating body, and before use, fully mixing and uniformly stirring the component A coating body and the component B coating body according to a mass ratio to obtain the product disclosed by the invention, and applying the product after the product is stewed and cured.
Description
Technical field
The present invention relates to anti-corrosion material, is a kind of special of oil field pipe anti-corrosion more particularly, to the pipeline corrosion protection in oil field
Levy state polyaniline paint and preparation method thereof.
Background technology
At present each main oilfield of China adopts water flood recovery technology as the Main Means for improving oil recovery factor, but
Each oil field is greatly all in the middle and later periods of exploitation exploitation, the condition of water quality very severe of water filling, to pipe string of oil field downhole and oil transportation
Pipeline brings extremely serious corrosion and scale problems.Gradually rise and waterflooding extraction scale as oilfield produced fluid is aqueous
The etching problem of increasing and the increase of injection pipe network service life, oil field pipe and injection pipe network system is interior in recent years to be presented
Sharp deterioration trend, it is very urgent that the corrosion of oil field pipe prevents and treats problem.In the various means of defences of oil field pipe, anti-corrosion
Coating is most effective, most economical, using most common anti-corrosion method, there is no chemical reaction with the material in pumped (conveying) medium in it,
Mainly as isolation pipeline and the physical barriers of corrosive medium, play a part of to slow down corrosion.The conventional painting of oil field pipe anti-corrosion
Coating has epoxy resin corrosion resistant coating, phenolic resin modified epoxy resin coating, polyurethane ester anticorrosion paint, epoxy polyurethane
Paint etc., these corrosion resistant coatings also often add some particular fillers, such as glass flake, magnetic iron oxide powder, zinc powder, active flake asbestos
Deng to improve anticorrosion ability.
Polyaniline as a kind of conducting polymer, because raw material is cheap and easy to get, it is simple and convenient to prepare, with excellent electrification
Learn performance and good chemical stability and there is no problem of environmental pollution during preparation and use and be increasingly subject to people
Pay close attention to.Polyaniline anti-corrosive paint has the incomparable anodic protection of conventional coating and shielding action to metal material, and its is steady
It is special anti-that nitrogen-atoms in thermally and chemically stability that fixed chain structure is produced and chain is produced to the strong absorption of metal
Rotten performance, can greatly improve the resistance to corrosion of metal, also with unique scratch resistance, anti-spot corrosion and selfreparing antiseptic power,
It is a kind of metal protection coating being particularly suitable under the rigor conditions such as ocean and oil field.
The content of the invention
The technical problem to be solved is：Overcome the shortcoming of prior art, there is provided a kind of oil field pipe anti-corrosion is special
With polyaniline in eigenstate coating and preparation method thereof, for the anti-corrosion of oil field pipe, extend the service life of oil field pipe.
The present invention solves the scheme of technical problem：A kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion, it is special
Levying is：It is made up of component A coating body and B component coating body, the component A coating body by polyaniline in eigenstate, epoxy resin,
Thixotropic agent, pigment, functional stuffing, double solvents and auxiliary agent composition；The B component coating body is made up of curing agent and dimethylbenzene.
The component A coating body is 2.8～3.6 with the mass ratio of B component coating body：1.
In the component A coating body, polyaniline in eigenstate, epoxy resin, thixotropic agent, pigment, functional stuffing, double solvents
It is 2～5 with the mass ratio of auxiliary agent：30～50：0.5～2：4～15：0～30：30～50：1～5.
The polyaniline in eigenstate is the polyaniline in eigenstate that molecular weight is 10,000-100,000.
The epoxy resin includes E-51, E-44, E-20.
The thixotropic agent includes organobentonite or polyamide wax.
The pigment includes titanium dioxide, iron oxide red, barba hispanica, cobalt green, carbon black.
The functional stuffing is zinc oxide or blanc fixe.
The double solvents is made up of true solvent and cosolvent；The mass ratio of the true solvent and cosolvent is 3.4：1；Institute
It is toluene or dimethylbenzene to state true solvent；The cosolvent is any one in n-butanol, butanone, ethyl acetate, acetone.
The auxiliary agent is levelling agent, sagging inhibitor, defoamer；The levelling agent is that polyether-modified dimethyl siloxane is molten
Liquid, the sagging inhibitor is modified urea solution, and the defoamer is brokenly bubble polymer or polysiloxane solution.
The B component coating body is curing agent and dimethylbenzene, and the curing agent is polyamide-based curing agent, phenolic aldehyde amine is consolidated
Any one of agent and cashew nut oil modified curing agent, curing agent is 2～3.3 with the mass ratio of dimethylbenzene：1.
A kind of preparation method of the special polyaniline in eigenstate coating of oil field pipe anti-corrosion, is characterized in that：Comprise the following steps：
1）By polyaniline in eigenstate, epoxy resin, thixotropic agent, pigment, functional stuffing, the double solvents of composition component A coating body
With auxiliary agent according to mass ratio 2～5：30～50：0.5～2：4～15：0～30：30～50：1～5 weigh respectively it is standby；
2）By the curing agent of composition B component coating body with dimethylbenzene according to mass ratio 2～3.3：1 weigh respectively it is standby；
3）By the true solvent of appropriate double solvents and step 1）The polyaniline in eigenstate of weighing, thixotropic agent are mixed and stirred for simultaneously
Uniformly, place and activated for 24 hours；
4）By cosolvent, step 1）Remaining true solvent stirs as double solvents, then puts into step 1）The ring of weighing
Oxygen tree fat, pigment, functional stuffing, auxiliary agent and step 3）Obtained activated solution, 30～60 points are stirred after mixing with 1000r/min
Clock, is subsequently adding abrasive media bead, with 2000r/min～3000r/min sand millings 240～360 minutes, leaches bead,
Obtain component A coating body；
5）By step 2）The curing agent of weighing obtains B component coating body after mixing and stir with dimethylbenzene；
6）Component A coating body and B component coating body are packed respectively and accumulating, using front, component A coating body and B component coating
Body is according to mass ratio 2.8～3.6：1 ratio is sufficiently mixed, stir after obtain the product of the present invention, place 30～60 points
Clock is used by being cured.
The invention has the beneficial effects as follows：
1st, technological process is simple to operate；
2nd, the coating of the invention being coated on iron plate, the adhesive force of its coating is tested according to GB/T 9286-1998, is applied
Layer adhesive force is 1 grade；
3rd, coating of the invention, its coating chemically-resistant erosion excellent performance, the tinplate for being coated with coating of the present invention is put respectively
Corrosion test is carried out in different media：1) saturation NaCl solution；2) sulfuric acid solution of 30% mass fraction；3) 20% mass
The sodium hydroxide solution of fraction；4）The hydrochloric acid solution of 10% mass fraction, sample soaks respectively after 360h in these media, mesh
Test sample product are without foaming, peeling, the phenomenon such as come off；
4th, the polyaniline in coating of the present invention has reversible redox property, has incomparable anode to metal material
The special antiseptic property that nitrogen-atoms on protection, shielding action and chain is produced to the strong absorption of metal, thus with excellent
Different antiseptic property；
5th, the preparation method of the special polyaniline in eigenstate coating of oil field pipe anti-corrosion that the present invention is provided is simple, and production technology is easily grasped
Control, production equipment is easily realized.Oil field pipe service life of equipment can be improved, reduction occurs the probability of accident because of device damage,
So as to reduce cost for oil production purpose.
Specific embodiment
With reference to embodiment, the present invention is further described.
Embodiment 1, a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion of the present embodiment, it is by component A coating body
With B component coating body composition, the component A coating body is by polyaniline in eigenstate, epoxy resin E-51, as the organic of thixotropic agent
Bentonite, the titanium dioxide and carbon black as pigment, the dimethylbenzene and n-butanol as double solvents, as the levelling agent of auxiliary agent
BYK306 and defoamer BYK066N and sagging inhibitor BYK410 is constituted, and the B component coating body is by polyamide-based curing agent
650 and dimethylbenzene composition.
In the component A coating body, comprising polyaniline in eigenstate 8g, the common 180g of epoxy resin E-51, organobentonite 4g,
Titanium dioxide 24g, carbon black 5g, dimethylbenzene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g anti-settling
Agent BYK410.
The B component coating body is the 30～40g of totally 80～100g and dimethylbenzene of polyamide-based curing agent 650.
The preparation method of the present embodiment is comprised the following steps：
1）Polyaniline in eigenstate 8g, the common 180g of epoxy resin E-51, the organobentonite of composition component A coating body are weighed respectively
4g, titanium dioxide 24g, carbon black 5g, dimethylbenzene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g prevent
Sedimentation agent BYK410 is standby；
2）Respectively totally 80～100g and 30～40g of dimethylbenzene are standby for the polyamide-based curing agent 650 of weighing composition B component coating body
With；
3）By step 1）The dimethylbenzene 20g of weighing, polyaniline in eigenstate 8g, organobentonite 4g are mixed and stirred for uniformly simultaneously,
Placement is activated for 24 hours, obtains polyaniline/organobentonite activated solution；
4）Dimethylbenzene 135g, n-butanol 45g are stirred as double solvents, step 1 is then put into）The epoxy resin of weighing
The common 180g of E-51, titanium dioxide 24g, carbon black 5g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g sagging inhibitor BYK410 and
Step 3）Obtained polyaniline/organobentonite activated solution, is stirred 60 minutes after mixing with 1000r/min, adds grinding
Medium glass pearl after leaching bead, obtained the A groups of about 400g with 2000r/min～3000r/min sand millings 240～360 minutes
Divide coating body；
5）By step 2）Totally 80～100g and 30～40g of dimethylbenzene mix and stir the polyamide-based curing agent 650 for weighing
After obtain B component coating body；
6）Component A coating body and B component coating body are packed respectively and accumulating, using front, component A coating body and B component coating
Body is according to mass ratio 2.8～3.6：1 ratio is sufficiently mixed, stir after obtain the product of the present invention, place 30～60 points
Clock is used by being cured.
Embodiment 2, a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion of the present embodiment, it is by component A coating body
With B component coating body composition, the component A coating body is by polyaniline in eigenstate, epoxy resin E-51, as the organic of thixotropic agent
Bentonite, titanium dioxide and carbon black as pigment, the barium sulfate as functional stuffing, the dimethylbenzene as double solvents and positive fourth
Alcohol, levelling agent BYK306 and defoamer BYK066N as auxiliary agent and sagging inhibitor BYK410 compositions；The B component coating
Body is made up of polyamide-based curing agent 650 and dimethylbenzene.
In the component A coating body, comprising polyaniline in eigenstate 12g, the common 180g of epoxy resin E-51, organobentonite
4g, titanium dioxide 18g, carbon black 5g, barium sulfate 12g, dimethylbenzene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer
BYK066N, 4g sagging inhibitor BYK410.
The B component coating body is the 30～40g of totally 80～100g and dimethylbenzene of polyamide-based curing agent 650.
The preparation method of the present embodiment is comprised the following steps：
1）Polyaniline in eigenstate 12g, the common 180g of epoxy resin E-51, the organobentonite of composition component A coating body are weighed respectively
4g, titanium dioxide 18g, carbon black 5g, barium sulfate 12g, dimethylbenzene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer
BYK066N, 4g sagging inhibitor BYK410 is standby；
2）Respectively totally 80～100g and 30～40g of dimethylbenzene are standby for the amide-type curing agent 650 of weighing composition B component coating body；
3）By step 1）The dimethylbenzene 20g of weighing, polyaniline in eigenstate 12g, organobentonite 4g are mixed and stirred for uniformly simultaneously,
Placement is activated for 24 hours, obtains polyaniline/organobentonite activated solution；
4）Dimethylbenzene 135g, n-butanol 45g are stirred as double solvents, step 1 is then put into）The epoxy resin of weighing
The common 180g of E-51, titanium dioxide 18g, carbon black 5g, barium sulfate 12g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g anti-settling
Agent BYK410 and step 3）Obtained polyaniline/organobentonite activated solution, is stirred 60 minutes after mixing with 1000r/min,
Abrasive media bead is added with 2000r/min～3000r/min sand millings 240～360 minutes, after leaching bead, is obtained
The component A coating body of about 400g；
5）By step 2）Totally 80～100g and 30～40g of dimethylbenzene mix and stir the polyamide-based curing agent 650 for weighing
After obtain B component coating body；
6）Component A coating body and B component coating body are packed respectively and accumulating, using front, component A coating body and B component coating
Body is according to mass ratio 2.8～3.6：1 ratio is sufficiently mixed, stir after obtain the product of the present invention, place 30～60 points
Clock is used by being cured.
Embodiment 3, a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion of the present embodiment, it is by component A coating body
With B component coating body composition, the component A coating body is by polyaniline in eigenstate, epoxy resin E-51, as the organic of thixotropic agent
Bentonite, iron oxide red and carbon black as pigment, the zinc oxide as functional stuffing, the dimethylbenzene as double solvents and positive fourth
Alcohol, levelling agent BYK306 and defoamer BYK066N as auxiliary agent and sagging inhibitor BYK410 compositions；The B component coating
Body is made up of cashew nut oil modified curing agent NX-2015 and dimethylbenzene.
In the component A coating body, comprising polyaniline in eigenstate 8g, the common 180g of epoxy resin E-51, organobentonite 4g,
Iron oxide red 18g, carbon black 5g, zinc oxide 12g, dimethylbenzene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer BYK066N,
4g sagging inhibitor BYK410.
The B component coating body is 80～100g cashew nut oil modified curing agent NX-2015 and 25～50g of dimethylbenzene.
The preparation method of the present embodiment is comprised the following steps：
1）Polyaniline in eigenstate 8g, the common 180g of epoxy resin E-51, the organobentonite of composition component A coating body are weighed respectively
4g, iron oxide red 18g, carbon black 5g, zinc oxide 12g, dimethylbenzene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer
BYK066N, 4g sagging inhibitor BYK410 is standby；
2）80～100g cashew nut oil modified curing agent NX-2015 and 30～40g of dimethylbenzene of composition B component coating body are weighed respectively
It is standby；
3）By step 1）The dimethylbenzene 20g of weighing, polyaniline in eigenstate 8g, organobentonite 4g are mixed and stirred for uniformly simultaneously,
Placement is activated for 24 hours, obtains polyaniline/organobentonite activated solution；
4）Dimethylbenzene 135g, n-butanol 45g are stirred as double solvents, step 1 is then put into）The epoxy resin of weighing
The common 180g of E-51, iron oxide red 18g, carbon black 5g, zinc oxide 12g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g anti-settlings
Agent BYK410 and step 3）Obtained polyaniline/organobentonite activated solution, is stirred 60 minutes after mixing with 1000r/min,
Abrasive media bead is added with 2000r/min～3000r/min sand millings 240～360 minutes, after leaching bead, is obtained
The component A coating body of about 400g；
5）By step 2）80～100g cashew nut oil modified curing agent the NX-2015 and 30～40g of dimethylbenzene for weighing mix and stir
B component coating body is obtained after uniform；
6）Component A coating body and B component coating body are packed respectively and accumulating, using front, component A coating body and B component coating
Body is according to mass ratio 2.8～3.6：1 ratio is sufficiently mixed, stir after obtain the product of the present invention, place 30～60 points
Clock is used by being cured.
Embodiment 4, a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion of the present embodiment, it is by component A coating body
With B component coating body composition, the component A coating body is by polyaniline in eigenstate, epoxy resin E-44, as the organic of thixotropic agent
Bentonite, the iron oxide red as pigment, the zinc oxide as functional stuffing, toluene and n-butanol as double solvents, conduct are helped
The levelling agent BYK306 and defoamer BYK066N of agent and sagging inhibitor BYK410 are constituted；The B component coating body is by cashew nut oil
Modified firming agent NX-2015 and dimethylbenzene are constituted.
In the component A coating body, comprising polyaniline in eigenstate 8g, the common 180g of epoxy resin E44, organobentonite 4g,
Iron oxide red 18g, zinc oxide 12g, toluene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g anti-settling
Agent BYK410.
The B component coating body is 80～100g cashew nut oil modified curing agent NX-2015 and 30～40g of dimethylbenzene.
The preparation method of the present embodiment is comprised the following steps：
1）Weigh respectively the composition polyaniline in eigenstate 8g of component A coating body, the common 180g of epoxy resin E44, organobentonite 4g,
Iron oxide red 18g, zinc oxide 12g, toluene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g anti-settling
Agent BYK410 is standby；
2）80～100g cashew nut oil modified curing agent NX-2015 and 30～40g of dimethylbenzene of composition B component coating body are weighed respectively
It is standby；
3）By step 1）Weigh toluene 20g, polyaniline in eigenstate 8g, organobentonite 4g and be mixed and stirred for uniform, placement simultaneously
Activated within 24 hours, obtained polyaniline/organobentonite activated solution；
4）Toluene 135g, n-butanol 45g are stirred as double solvents, step 1 is then put into）The epoxy resin E- of weighing
44 common 180g, iron oxide red 18g, zinc oxide 12g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g sagging inhibitor BYK410 and
Step 3）Obtained polyaniline/organobentonite activated solution, is stirred 60 minutes after mixing with 1000r/min, adds grinding
Medium glass pearl after leaching bead, obtained the A groups of about 400g with 2000r/min～3000r/min sand millings 240～360 minutes
Divide coating body；
5）By step 2）80～100g cashew nut oil modified curing agent the NX-2015 and 30～40g of dimethylbenzene for weighing mix and stir
B component coating body is obtained after uniform；
6）Component A coating body and B component coating body are packed respectively and accumulating, using front, component A coating body and B component coating
Body is according to mass ratio 2.8～3.6：1 ratio is sufficiently mixed, stir after obtain the product of the present invention, place 30～60 points
Clock is used by being cured.
Embodiment 5, a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion of the present embodiment, it is by component A coating body
With B component coating body composition, the component A coating body is by polyaniline in eigenstate, epoxy resin E-44, as the polyamides of thixotropic agent
Amine wax, the cobalt green as pigment, the barium sulfate as functional stuffing, toluene and n-butanol as double solvents, as auxiliary agent
Levelling agent BYK306 and defoamer BYK066N and sagging inhibitor BYK410 composition；The B component coating body is by phenolic aldehyde amine
Curing agent T-31 and dimethylbenzene are constituted.
In the component A coating body, comprising polyaniline in eigenstate 8g, the common 180g of epoxy resin E-44, polyamide wax 4g, cobalt
Green 18g, barium sulfate 12g, toluene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g sagging inhibitor
BYK410。
The B component coating body is 80～100g phenolic aldehyde amine curing agent T-31 and 30～40g dimethylbenzene.
The preparation method of the present embodiment is comprised the following steps：
1）Weigh respectively the composition polyaniline in eigenstate 8g of component A coating body, the common 180g of epoxy resin E-44, polyamide wax 4g,
Cobalt green 18g, barium sulfate 12g, toluene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g anti-settling
Agent BYK410 is standby；
2）80～100g phenolic aldehyde amine curing agent T-31 and 25～50g the dimethylbenzene for weighing composition B component coating body respectively is standby；
3）By step 1）The toluene 20g of weighing, polyaniline in eigenstate 8g, polyamide wax 4g are mixed and stirred for uniform, placement simultaneously
Activated within 24 hours, obtained polyaniline/polyamide activated solution；
4）Toluene 135g, n-butanol 45g are stirred as double solvents, step 1 is then put into）The epoxy resin E- of weighing
44 common 180g, cobalt green 18g, barium sulfate 12g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g sagging inhibitor BYK410 and
Step 3）Obtained polyaniline/polyamide wax activated solution, is stirred 60 minutes after mixing with 1000r/min, adds grinding medium
Matter bead after leaching bead, obtained the component A of about 400g with 2000r/min～3000r/min sand millings 240～360 minutes
Coating body；
5）By step 2）80～100g phenolic aldehyde amine curing agent T-31 and 30～40g the dimethylbenzene for weighing mixes and stirs
After obtain B component coating body；
6）Component A coating body and B component coating body are packed respectively and accumulating, using front, component A coating body and B component coating
Body is according to mass ratio 2.8～3.6：1 ratio is sufficiently mixed, stir after obtain the product of the present invention, place 30～60 points
Clock is used by being cured.
Embodiment 6, a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion of the present embodiment, it is by component A coating body
With B component coating body composition, the component A coating body is by polyaniline in eigenstate, epoxy resin E-51, as the polyamides of thixotropic agent
Amine wax, the titanium dioxide as pigment, carbon black, the zinc oxide as functional stuffing, the dimethylbenzene as double solvents and n-butanol,
Levelling agent BYK306 and defoamer BYK066N and sagging inhibitor BYK410 composition as auxiliary agent；The B component coating body by
Phenolic aldehyde amine curing agent T-31 and dimethylbenzene are constituted.
In the component A coating body, comprising polyaniline in eigenstate 8g, the common 180g of epoxy resin E-51, polyamide wax 4g,
18g titanium dioxides, 5g carbon blacks, zinc oxide 12g, dimethylbenzene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer
BYK066N, 4g sagging inhibitor BYK410.
The B component coating body is 80～100g phenolic aldehyde amine curing agent T-31 and 30～40g dimethylbenzene.
The preparation method of the present embodiment is comprised the following steps：
1）Weigh respectively the composition polyaniline in eigenstate 8g of component A coating body, the common 180g of epoxy resin E-51, polyamide wax 4g,
18g titanium dioxides, 5g carbon blacks, zinc oxide 12g, dimethylbenzene 155g, n-butanol 45g, 2g levelling agent BYK306,2g defoamer
BYK066N, 4g sagging inhibitor BYK410 is standby；
2）80～100g phenolic aldehyde amine curing agent T-31 and 30～40g the dimethylbenzene for weighing composition B component coating body respectively is standby；
3）By step 1）The dimethylbenzene 20g of weighing, polyaniline in eigenstate 8g, polyamide wax 4g are mixed and stirred for uniformly, putting simultaneously
Put 24 hours and activated, obtain polyaniline/polyamide wax activated solution；
4）Dimethylbenzene 135g, n-butanol 45g are stirred as double solvents, step 1 is then put into）The epoxy resin of weighing
12g, 2g levelling agent BYK306,2g defoamer BYK066N, 4g are anti-settling for common 180g, 18g titanium dioxides of E-51,5g carbon blacks, zinc oxide
Depressant prescription BYK410 and step 3）Obtained polyaniline/polyamide wax activated solution, is stirred 60 minutes after mixing with 1000r/min,
Abrasive media bead is added with 2000r/min～3000r/min sand millings 240～360 minutes, after leaching bead, is obtained
The component A coating body of about 400g；
5）By step 2）80～100g phenolic aldehyde amine curing agent T-31 and 30～40g the dimethylbenzene for weighing mixes and stirs
After obtain B component coating body；
6）Component A coating body and B component coating body are packed respectively and accumulating, using front, component A coating body and B component coating
Body is according to mass ratio 2.8～3.6：1 ratio is sufficiently mixed, stir after obtain the product of the present invention, place 30～60 points
Clock is used by being cured.
Claims (10)
1. a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion, is characterized in that：It is applied by component A coating body and B component
Material body composition, the component A coating body is by polyaniline in eigenstate, epoxy resin, thixotropic agent, pigment, functional stuffing, double solvents
With auxiliary agent composition；The B component coating body is made up of curing agent and dimethylbenzene；
The component A coating body is 2.8～3.6 with the mass ratio of B component coating body：1；
In the component A coating body, polyaniline in eigenstate, epoxy resin, thixotropic agent, pigment, functional stuffing, double solvents and help
The mass ratio of agent is 2～5：30～50：0.5～2：4～15：0～30：30～50：1～5；
In the B component coating body, curing agent is 2～3.3 with the mass ratio of dimethylbenzene：1.
2. a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion as claimed in claim 1, is characterized in that：It is described intrinsic
State polyaniline is the polyaniline in eigenstate that molecular weight is 10,000-100,000.
3. a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion as claimed in claim 1, is characterized in that：The epoxy
Resin includes E-51, E-44, E-20.
4. a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion as claimed in claim 1, is characterized in that：The thixotroping
Agent includes organobentonite or polyamide wax.
5. a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion as claimed in claim 1, is characterized in that：The pigment
Including titanium dioxide, iron oxide red, barba hispanica, cobalt green, carbon black.
6. a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion as claimed in claim 1, is characterized in that：The function
Filler is zinc oxide or blanc fixe.
7. a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion as claimed in claim 1, is characterized in that：It is described compound
Solvent is made up of true solvent and cosolvent；The mass ratio of the true solvent and cosolvent is 3.4：1；The true solvent be toluene or
Dimethylbenzene；The cosolvent is any one in n-butanol, butanone, ethyl acetate, acetone.
8. a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion as claimed in claim 1, is characterized in that：The auxiliary agent
For levelling agent, sagging inhibitor, defoamer；The levelling agent is polyether-modified dimethyl siloxane solution, and the sagging inhibitor is
Modified urea solution, the defoamer is brokenly bubble polymer or polysiloxane solution.
9. a kind of special polyaniline in eigenstate coating of oil field pipe anti-corrosion as claimed in claim 1, is characterized in that：The B groups
The curing agent divided in coating body is any one of polyamide-based curing agent, phenolic aldehyde amine curing agent and cashew nut oil modified curing agent
Kind.
10. a kind of preparation method of the special polyaniline in eigenstate coating of oil field pipe anti-corrosion, is characterized in that：Comprise the following steps：
1）By polyaniline in eigenstate, epoxy resin, thixotropic agent, pigment, functional stuffing, the double solvents of composition component A coating body
With auxiliary agent according to mass ratio 2～5：30～50：0.5～2：4～15：0～30：30～50：1～5 weigh respectively it is standby；
2）By the curing agent of composition B component coating body with dimethylbenzene according to mass ratio 2～3.3：1 weigh respectively it is standby；
3）By the true solvent of appropriate double solvents and step 1）The polyaniline in eigenstate of weighing, thixotropic agent are mixed and stirred for simultaneously
Uniformly, place and activated for 24 hours；
4）By cosolvent, step 1）Remaining true solvent stirs as double solvents, then puts into step 1）The ring of weighing
Oxygen tree fat, pigment, functional stuffing, auxiliary agent and step 3）Obtained activated solution, 30～60 points are stirred after mixing with 1000r/min
Clock, is subsequently adding abrasive media bead, with 2000r/min～3000r/min sand millings 240～360 minutes, leaches bead,
Obtain component A coating body；
5）By step 2）The curing agent of weighing obtains B component coating body after mixing and stir with dimethylbenzene；
6）Component A coating body and B component coating body are packed respectively and accumulating, using front, component A coating body and B component coating
Body is according to mass ratio 2.8～3.6：1 ratio is sufficiently mixed, stir after obtain the product of the present invention, place 30～60 points
Clock is used by being cured.
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Cited By (5)
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| CN108384400A (en) * | 2018-04-12 | 2018-08-10 | 北华大学 | Epoxy glass flake anticorrosive paint and preparation method thereof containing polyaniline |
| CN108485459A (en) * | 2018-03-20 | 2018-09-04 | 北华大学 | A kind of environment-friendly type high solid polyaniline epoxy anti-corrosive paint and preparation method thereof |
| CN108559375A (en) * | 2018-04-12 | 2018-09-21 | 北华大学 | Polyaspartic Polyurea anticorrosive paint containing polyaniline and preparation method thereof |
| CN108753116A (en) * | 2018-04-16 | 2018-11-06 | 北华大学 | A kind of Waterborne Polyaniline Corrosion Protection Coatings and preparation method thereof |
| CN110746844A (en) * | 2018-07-24 | 2020-02-04 | 滨州学院 | Preparation method of anticorrosive paint containing modified polyaniline |
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| CN108485459A (en) * | 2018-03-20 | 2018-09-04 | 北华大学 | A kind of environment-friendly type high solid polyaniline epoxy anti-corrosive paint and preparation method thereof |
| CN108384400A (en) * | 2018-04-12 | 2018-08-10 | 北华大学 | Epoxy glass flake anticorrosive paint and preparation method thereof containing polyaniline |
| CN108559375A (en) * | 2018-04-12 | 2018-09-21 | 北华大学 | Polyaspartic Polyurea anticorrosive paint containing polyaniline and preparation method thereof |
| CN108753116A (en) * | 2018-04-16 | 2018-11-06 | 北华大学 | A kind of Waterborne Polyaniline Corrosion Protection Coatings and preparation method thereof |
| CN110746844A (en) * | 2018-07-24 | 2020-02-04 | 滨州学院 | Preparation method of anticorrosive paint containing modified polyaniline |
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