CN107722830A - A kind of preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint - Google Patents
A kind of preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint Download PDFInfo
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- CN107722830A CN107722830A CN201710998889.0A CN201710998889A CN107722830A CN 107722830 A CN107722830 A CN 107722830A CN 201710998889 A CN201710998889 A CN 201710998889A CN 107722830 A CN107722830 A CN 107722830A
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- 239000003973 paint Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 48
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 25
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 22
- 239000003822 epoxy resin Substances 0.000 claims abstract description 20
- 239000000839 emulsion Substances 0.000 claims abstract description 18
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 41
- -1 polytetrafluoroethylene Polymers 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000005576 amination reaction Methods 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 13
- 238000005253 cladding Methods 0.000 claims description 11
- 239000004593 Epoxy Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 238000013019 agitation Methods 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000012452 mother liquor Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine hydrate Chemical class O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000004108 freeze drying Methods 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims 1
- MZSDGDXXBZSFTG-UHFFFAOYSA-M sodium;benzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=CC=C1 MZSDGDXXBZSFTG-UHFFFAOYSA-M 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 59
- 239000011248 coating agent Substances 0.000 abstract description 52
- 239000011159 matrix material Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 abstract description 4
- 238000004132 cross linking Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 13
- 238000007792 addition Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical group CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
Classifications
-
- 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
- C09D187/00—Coating compositions based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
- C09D187/005—Block or graft polymers not provided for in groups C09D101/00 - C09D185/04
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/001—Macromolecular compounds containing organic and inorganic sequences, e.g. organic polymers grafted onto silica
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of coating preparation, more particularly to a kind of preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint.Combined the ptfe emulsion after polyethylenimine solution is handled in a manner of Electrostatic Absorption with graphene oxide, then aqueous epoxy resins are grafted after redox graphene and amino functional, so as to which three be integrated into a whole in a manner of chemical bond, effectively increase dispersivenesses and compatibility of the AGP in aqueous epoxy resins matrix, and add the degree of cross linking of resin matrix, the barrier of water-based matrix coating is effectively improved, substantially improves the weatherability and anti-corrosive properties of coating.
Description
Technical field
The invention belongs to the technical field of coating preparation, more particularly to a kind of preparation side of weatherability Environment-friendlyanti-corrosive anti-corrosive paint
Method.
Background technology
Metal material turns into most widely used material because of its excellent mechanical property, but metal erosion serious shadow
Its service life has been rung, and has caused huge economic loss.Recently as the increasing of steel building, steel building
Protection it is of great interest.In various aseptic technics, water paint anticorrosion technique has many unique superiority, is
Most economical environmental protection, most widely used method for effective protecting.However, outdoor steel structure is under the influence of natural environment, coating
Weatherability is greatly weakened.Weatherability is to determine one vital factor of coating life, and coating is because long-time is by day
Shine, wind and rain, the cold and hot influence for waiting natural climatic factor, service life substantially reduces.The weatherability of water paint is poor（Outdoor coating
Service life be generally 3-5 years）Its service life is greatly affected, so the weatherability for improving coating is coating research
One emphasis in direction.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint, should
The preparation method of coating can effectively improve the barrier of water-based matrix coating, improve the antiseptic property and weather resistance of coating, should
Method amount of filler is small, and preparation process is gentle, environmentally friendly, energy consumption is low, is adapted to production application.
To achieve these goals, the preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint provided by the invention, including following step
Suddenly.
Step 1, take 1.2-1.6g polytetrafluoroethylene (PTFE)（PTFE）Emulsion（Solid content 20%-40%）It is distributed to 80-150mL 12
Sodium alkyl benzene sulfonate（SDBS）The aqueous solution of surfactant（0.01 - 0.05g/ml）In, it is ultrasonically treated 45min（50 -
80KHz）；Then 30-50ml polycation polyethyleneimines are added（PEI）The aqueous solution（0.01g/ml）, magnetic agitation 15min
（200 - 350r/min）, it is standby.
Step 2, the PTFE emulsion for handling 2-3.2g graphene oxides and 0.5-0.8g steps 1 pass through mechanical agitation 5
- 8min（200-280r/min）After mixing, 100-160ml hydrazine hydrates are added, reduces 8 hours, is reduced under the conditions of 80 DEG C
The PTFE hybrid materials of graphene coated（RGOP）.
Step 3,1- 1.8gRGOP are distributed in the ml ethanol of 300- 400, after being ultrasonically treated 30min（50 -
80KHz）, add it in 500ml single-necked flask, 1. 79 g 3- aminopropyl trimethoxy silica be then slowly added dropwise
Alkane (APTMS), mixture are heated to reflux 6 h under the conditions of 600-800 r/min, are cooled to room temperature afterwards, remove upper strata
Clear liquid, substrate are washed 3 times respectively with ethanol and water, freeze-drying（- 15 DEG C to -20 DEG C）12h, obtain amination graphene cladding
Ptfe composite（AGP）.
Step 4,10-40gAGP is taken, be added in the mixed liquor of 100-200g water and 100-200g aqueous epoxy resins, magnetic
Power stirs 5-10min（200-350r/min）, produce the mother that amination graphene coats polytetrafluoroethylene (PTFE)/water-based anticorrosive paint
Liquid.
Step 5, after taking 25-50g waterborne curing agents to be well mixed with 50-100g water, it is then poly- with amination graphene cladding
The mother liquor of tetrafluoroethene/water-based anticorrosive paint presses 1：3-4 mass ratio mixing.
The aqueous epoxy resins are Ar555 epoxy resin, H228A epoxy resin, E44 epoxy emulsions, E51 epoxies
The aqueous epoxy resins commonly used in the art such as emulsion or E20 epoxy emulsions.
Described waterborne curing agent is the waterborne curing agents commonly used in the art such as Aq419, H228B, W651 or W650.
Beneficial effects of the present invention.
The preparation method of a kind of weatherability Environment-friendlyanti-corrosive anti-corrosive paint proposed by the present invention, by the way that polyethylenimine solution is handled
Ptfe emulsion afterwards is combined in a manner of Electrostatic Absorption with graphene oxide, then redox graphene and amino work(
Aqueous epoxy resins are grafted after energyization, so as to which three be integrated into a whole in a manner of chemical bond, AGP is effectively increased and exists
Dispersiveness and compatibility in aqueous epoxy resins matrix, and the degree of cross linking of resin matrix is added, it is effectively improved water-based matrix
The barrier of coating, substantially improve the weatherability and anti-corrosive properties of coating.
The polytetrafluoroethylene (PTFE) that the present invention uses（PTFE）, it is by the aggregated high-molecular compound formed of tetrafluoroethene, tool
There are excellent chemical stability, corrosion resistance, sealing, high lubrication non-stick, electrical insulating property and good anti-aging endurance, gather
Tetrafluoroethene keeps excellent mechanical property in -196-260 DEG C of wider temperature range, non-ignitable also with nonhygroscopic, right
The characteristics of oxygen, ultraviolet equal stabilizer pole, there is excellent weatherability；Graphene is emerging nano-carbon material, by carbon atom group
Into only one layer of atomic thickness two dimensional crystal, have lamellar structure, have good stability to water, oxygen and ion
And barrier, during filler as coating, good physical shielding effect can be played, so as to improve the corrosion-resistant of organic coating
Performance；It is grafted using amination graphene cladding polytetrafluoroethylene (PTFE) with aqueous epoxy resins, three is combined in a manner of chemical bond
For an entirety, the dispersiveness and compatibility of polytetrafluoroethylene (PTFE) in the coating are not only solved, and add the crosslinking of coating
Degree；The coating cracking caused because the mixing of filler is uneven is eliminated, makes brushing technique simpler.The present invention will have excellent
The polytetrafluoroethylene (PTFE) of weatherability is incorporated into aqueous epoxy resins, is drastically increased the weatherability of coating, is added coating
Service life.
Brief description of the drawings
Fig. 1 is polytetrafluoroethylene (PTFE)/amination graphene/epoxy resin interaction mechanism figure.
The relation of Fig. 2 different proportions AGP composite coatings aberration and ageing time.
The relation of Fig. 3 different proportions AGP composite coatings gloss loss and ageing time.
Fig. 4 AGP coatings are Qwest, wherein scheming（a）Varnish, figure（b）AGP fillers account for the quality hundred of overall composite coating
Divide than being 1%, scheming（c）The mass percent that AGP fillers account for overall composite coating is 2%, figure（d）AGP fillers account for overall compound painting
The mass percent of material is 3%.
Fig. 5 AGP coating adhesion, wherein scheming（a）Varnish, figure（b）AGP fillers account for the quality percentage of overall composite coating
Than for 1%, figure（c）The mass percent that AGP fillers account for overall composite coating is 2%, figure（d）AGP fillers account for overall composite coating
Mass percent be 3%.
Embodiment
With reference to embodiment, the present invention is described in detail.
Embodiment 1.
Polytetrafluoroethylene (PTFE)/amination graphene/epoxy resin interaction mechanism figure, is shown in Fig. 1.
The preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint, comprises the following steps.
Step 1. takes 1.3g ptfe emulsions（Solid content 30%）It is dispersed in 100 ml neopelex
（SDBS）The aqueous solution of surfactant（In 0.02g/ml), ultrasonic 45min（70 KHz）, then by the poly- second of 40ml polycations
Alkene imines（PEI）The aqueous solution（0.01g/ml）It is added in PTFE emulsion, magnetic agitation 15min（260r/min）.
The PTFE emulsion that step 2. handles 2.4g graphite oxides aqueous dispersions and 0.6g steps 1 is by stirring 5 min
（220 r/min）After mixing, add 150 ml hydrazine hydrates and reduced 8 hours under the conditions of 80 DEG C, obtain reduced graphene cladding
PTFE hybrid materials（RGOP）.
1 .5 g RGOP are distributed in 350 ml ethanol by step 3, ultrasonic 30min（70 KHz）, then add it to
In 500ml single-necked flask, 1. 79 g 3- aminopropyls trimethoxy siloxanes (APTMS) are then slowly added dropwise, mix
Thing is heated to reflux 6 h under 650r/min, is cooled to room temperature afterwards, removes supernatant liquor, and substrate is washed respectively with ethanol and water
3 times, 12h is freeze-dried under the conditions of -18 DEG C, obtains amination graphene cladding ptfe composite（AGP）.
Step 4. takes 30gAGP, is added in the mixed liquor of 150g water and 150gAr555 epoxy resin, magnetic agitation
10min（300r/min）, produce the mother liquor of polytetrafluoroethylene (PTFE)/amination graphene/water-based anticorrosive paint.
After step 5. takes 30g waterborne curing agents H228B to be well mixed with 60 g water, then with polytetrafluoroethylene (PTFE)/amination
The mother liquor of graphene/water-based anticorrosive paint presses 1：4 ratio mixing.
Using the fluorescent tube of standard UV A-340nm wavelength to the AGP composite coatings of different proportion（AGP fillers account for overall compound
The mass percent of coating）Carry out artificial accelerated aging test, ageing-resistant performance index obtained by prepares coating, be shown in Table 1, Fig. 2 and
Fig. 3.
The chalk rating of the different adding proportion AGP composite coatings of table 1.
From table 1, Fig. 2 and Fig. 3 results, with increasing for AGP additions, the anti-powdering of coating, anti-tarnishing ability and
Light-protection rate all gradually steps up.
The electrochemical workstation testing coating electricity of decay resistance index AUTOLAB 84362 obtained by the prepares coating of embodiment 1
Chemical AC impedance, is shown in Fig. 4；From Fig. 4 Electrochemical results, with the increase of coating soak time, coating impedance value
Decline；When soak time reaches 720h, there is induction reactance arc in figure a, shows that corrosive medium has reached coating and metal
Interface, start attack metal, coating has no longer been a complete protection system, and coating has failed；Now,（b）、（c）、
（d）Single capacitive reactance arc is then also kept in 720h, is illustrated now（b）、（c）、（d）Coating remains to play protective benefitses well,
But the impedance value for wherein scheming c is maximum, illustrate that coating antiseptic performance is best when AGP additions are 2%.
Using PosiTest AT drawing type adhesion-force tester testing coating mechanical properties, coating institute prepared by embodiment 1
Obtain mechanical performance index and see Fig. 5；The addition of AGP fillers can be effectively increased epoxy it can be seen from Fig. 5 adhesive force test results
Active force between coating and metal, its main cause be epoxy coating during solidification due to the volatilization of solvent, can produce
Some raw microscopic voids；And these microscopic voids are easy to develop into macroscopic cracking when coating is by active force, turn into preferential
The breakaway poing of selection；But AGP can react with epoxy resin, the degree of cross linking of coating is not only increased, improves coating
Resistance to stress ability, and AGP fillers can be filled among these holes, and when coating is stressed, these fillers can be certain
Stress is absorbed in degree and caused micro-crack after these coatings are stressed notably is terminated by the transmission effects reduction of power, from
And effectively improve the adhesive force between coating and metal；But nor addition is The more the better, add as can be seen from the table
The adhesive force of 2% AGP epoxy resin is maximum.
As can be seen here, the AGP properties of coating that addition is 2% is optimal.
The performance comparision of coating and domestic like product, is shown in Table 2 prepared by the embodiment of the present invention 1.
The domestic like product performance comparision of table 2.
As a result show, AGP water-base epoxies coating is better than other in everyways such as weatherability, corrosion resistance, mechanical properties
Coating, the more most coatings of combination property are higher by 30% -50%.
Claims (4)
1. a kind of preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint, it is characterised in that comprise the following steps：
Step 1, take 1.2-1.6g polytetrafluoroethylene (PTFE)（PTFE）Emulsion（Solid content 20%-40%）It is distributed to 80-150mL dodecyls
Benzene sulfonic acid sodium salt（SDBS）The aqueous solution of surfactant（0.01 - 0.05g/ml）In, it is ultrasonically treated 45min（50 -
80KHz）；Then 30-50ml polycation polyethyleneimines are added（PEI）The aqueous solution（0.01g/ml）, magnetic agitation 15min
（200 - 350r/min）, it is standby；
Step 2, by the PTFE emulsion that 2-3.2g graphene oxides and 0.5-0.8g steps 1 are handled by mechanical agitation 5-
8min（200-280r/min）After mixing, 100-160ml hydrazine hydrates are added, are reduced 8 hours under the conditions of 80 DEG C, obtain reducing stone
The PTFE hybrid materials of black alkene cladding（RGOP）；
Step 3,1- 1.8gRGOP are distributed in the ml ethanol of 300- 400, after being ultrasonically treated 30min（50 - 80KHz）, will
It is added in 500ml single-necked flask, be then slowly added dropwise 1. 79 g 3- aminopropyls trimethoxy siloxanes (
APTMS), mixture is heated to reflux 6 h under the conditions of 600-800 r/min, is cooled to room temperature afterwards, and it is clear to remove upper strata
Liquid, substrate are washed 3 times respectively with ethanol and water, freeze-drying（- 15 DEG C to -20 DEG C）12h, it is poly- to obtain amination graphene cladding
Tetrafluoroethene composite（AGP）；
Step 4,10-40gAGP is taken, be added in the mixed liquor of 100-200g water and 100-200g aqueous epoxy resins, magnetic
Power stirs 5-10min（200 - 350r/min）, produce amination graphene cladding polytetrafluoroethylene (PTFE)/water-based anticorrosive paint
Mother liquor；
Step 5, after taking 25-50g waterborne curing agents to be well mixed with 50- 100g water, then with amination graphene cladding poly- four
The mother liquor of PVF/water-based anticorrosive paint presses 1：3-4 ratio mixing.
2. the preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint as claimed in claim 1, it is characterised in that the water-base epoxy tree
Fat is Ar555 epoxy resin, H228A epoxy resin, E44 epoxy emulsions, E51 epoxy emulsions or E20 epoxy emulsions.
3. the preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint as claimed in claim 1, it is characterised in that described is aqueous solidified
Agent is Aq419, H228B, W651 and W650.
4. the preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint as claimed in claim 1, it is characterised in that specifically include following step
Suddenly：
Step 1. takes 1.3g ptfe emulsions（Solid content 30%）It is dispersed in 100 ml neopelex
（SDBS）The aqueous solution of surfactant（In 0.02g/ml), ultrasonic 45min（70 KHz）, then by the poly- second of 40ml polycations
Alkene imines（PEI）The aqueous solution（0.01g/ml）It is added in PTFE emulsion, magnetic agitation 15min（260r/min）；
The PTFE emulsion that step 2. handles 2.4g graphite oxides aqueous dispersions and 0.6g steps 1 is by stirring 5 min（220 r/
min）After mixing, add 150 ml hydrazine hydrates and reduced 8 hours under the conditions of 80 DEG C, obtain the PTFE hydridization of reduced graphene cladding
Material（RGOP）；
1 .5 g RGOP are distributed in 350 ml ethanol by step 3, ultrasonic 30min（70 KHz）, then add it to
In 500ml single-necked flask, 1. 79 g 3- aminopropyls trimethoxy siloxanes (APTMS) are then slowly added dropwise, mix
Thing is heated to reflux 6 h under 650r/min, is cooled to room temperature afterwards, removes supernatant liquor, and substrate is washed respectively with ethanol and water
3 times, 12h is freeze-dried under the conditions of -18 DEG C, obtains amination graphene cladding ptfe composite（AGP）；
Step 4. takes 30gAGP, is added in the mixed liquor of 150g water and 150gAr555 epoxy resin, magnetic agitation 10min
（300r/min）, produce the mother liquor of polytetrafluoroethylene (PTFE)/amination graphene/water-based anticorrosive paint；Step 5. takes 30g
After H228B is well mixed with 60 g water, then press with the mother liquor of polytetrafluoroethylene (PTFE)/amination graphene/water-based anticorrosive paint
1：4 ratio mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710998889.0A CN107722830B (en) | 2017-10-24 | 2017-10-24 | A kind of preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710998889.0A CN107722830B (en) | 2017-10-24 | 2017-10-24 | A kind of preparation method of weatherability Environment-friendlyanti-corrosive anti-corrosive paint |
Publications (2)
| Publication Number | Publication Date |
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| CN107722830A true CN107722830A (en) | 2018-02-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109370366A (en) * | 2018-08-17 | 2019-02-22 | 菏泽学院 | A kind of anti-corrosion heat radiation coating and preparation method thereof based on the doping of functionalized graphite's alkene |
| CN109929141A (en) * | 2019-02-22 | 2019-06-25 | 四川大学 | A kind of graphene oxide and its epoxy nano composite material of polyethyleneimine-modified |
| CN112375459A (en) * | 2020-11-20 | 2021-02-19 | 广东豪之盛新材料有限公司 | Graphene/water-based epoxy zinc-rich coating with high corrosion resistance and strong adhesive force and preparation method thereof |
| CN112409862A (en) * | 2020-11-18 | 2021-02-26 | 清远市贝客音涂料有限公司 | Copper door gloss oil capable of controlling color change according to baking temperature and preparation method thereof |
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| CN109370366A (en) * | 2018-08-17 | 2019-02-22 | 菏泽学院 | A kind of anti-corrosion heat radiation coating and preparation method thereof based on the doping of functionalized graphite's alkene |
| CN109929141A (en) * | 2019-02-22 | 2019-06-25 | 四川大学 | A kind of graphene oxide and its epoxy nano composite material of polyethyleneimine-modified |
| CN112409862A (en) * | 2020-11-18 | 2021-02-26 | 清远市贝客音涂料有限公司 | Copper door gloss oil capable of controlling color change according to baking temperature and preparation method thereof |
| CN112409862B (en) * | 2020-11-18 | 2021-11-02 | 清远市贝客音涂料有限公司 | Copper door gloss oil capable of controlling color change according to baking temperature and preparation method thereof |
| CN112375459A (en) * | 2020-11-20 | 2021-02-19 | 广东豪之盛新材料有限公司 | Graphene/water-based epoxy zinc-rich coating with high corrosion resistance and strong adhesive force and preparation method thereof |
| CN112375459B (en) * | 2020-11-20 | 2022-03-29 | 广东豪之盛新材料有限公司 | Graphene/water-based epoxy zinc-rich coating with high corrosion resistance and strong adhesive force and preparation method thereof |
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