CN116515369A - Wear-resistant paint and preparation method thereof - Google Patents
Wear-resistant paint and preparation method thereof Download PDFInfo
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- CN116515369A CN116515369A CN202310629011.5A CN202310629011A CN116515369A CN 116515369 A CN116515369 A CN 116515369A CN 202310629011 A CN202310629011 A CN 202310629011A CN 116515369 A CN116515369 A CN 116515369A
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- 239000003973 paint Substances 0.000 title abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000000576 coating method Methods 0.000 claims abstract description 31
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000010456 wollastonite Substances 0.000 claims abstract description 25
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 25
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 239000003822 epoxy resin Substances 0.000 claims abstract description 21
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 20
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 18
- IBLKWZIFZMJLFL-UHFFFAOYSA-N 1-phenoxypropan-2-ol Chemical compound CC(O)COC1=CC=CC=C1 IBLKWZIFZMJLFL-UHFFFAOYSA-N 0.000 claims abstract description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 16
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 66
- 238000002156 mixing Methods 0.000 claims description 39
- 238000003756 stirring Methods 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 19
- 239000007864 aqueous solution Substances 0.000 claims description 16
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 claims description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 5
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical group CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 238000000527 sonication Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 5
- 238000005054 agglomeration Methods 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 3
- 238000009210 therapy by ultrasound Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000012360 testing method 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of paint preparation. The invention provides a wear-resistant paint and a preparation method thereof, wherein the wear-resistant paint comprises the following raw materials: graphene oxide, silicon micropowder, wollastonite, epoxy resin, curing agent, solvent, propylene glycol phenyl ether and alumina. According to the invention, the epoxy resin is used as a main component, and the graphene oxide has good mechanical property and lubricating property, so that the wear resistance of the coating is improved. The silica powder, wollastonite and alumina are matched with different particle sizes, so that the inside of the paint is more compact by effective meshing, and the mechanical property of the paint can be improved while falling off in the use process is avoided. And the silicon micropowder is used for modifying the graphene oxide, and the carboxyl of the graphene oxide is combined with the silicon hydroxyl in the silicon micropowder, so that the agglomeration and caking of the graphene oxide in the paint can be effectively prevented, and the silicon micropowder can also improve the wear resistance of the paint. The preparation method provided by the invention is simple, has low process requirements, and is suitable for large-scale preparation.
Description
Technical Field
The invention relates to the technical field of paint preparation, in particular to a wear-resistant paint and a preparation method thereof.
Background
As technology advances, the importance of coatings is also widely known. When the paint is just started to be developed, the paint is used for surface decoration of various articles to achieve the adaptation of the whole environment. In the course of the subsequent development, numerous researchers have recognized that if great efforts are required to impart new properties to an article, if coatings are modified to cover the target article, the cost is greatly reduced and the effect is immediate, so that various functional coatings are coming out.
Among these functional coatings, abrasion resistant coatings have been the leading edge of research, owing to the extremely large annual losses due to abrasion, requiring a large amount of abrasion resistant coatings to reduce the losses. In the research process, if the surface hardness of the paint is too high after the paint is formed into a film, the paint is easy to crack under the action of sudden impact or huge pressure, and the service life is short; if the surface of the paint after film formation is softer, the protection effect cannot be achieved. Therefore, it is an urgent need to solve the problem to provide a wear-resistant coating with excellent performance.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a wear-resistant coating and a preparation method thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a wear-resistant coating which comprises the following raw materials in parts by mass: 10-15 parts of graphene oxide, 15-20 parts of silica micropowder, 5-10 parts of wollastonite, 55-65 parts of epoxy resin, 10-15 parts of curing agent, 15-25 parts of solvent, 5-8 parts of propylene glycol phenyl ether and 10-13 parts of alumina.
Preferably, the mass ratio of the components with the particle size of 0.1-0.2 μm and the components with the particle size of 0.3-0.45 μm in the silicon micro powder is 2-2.5: 0.5 to 1.5.
Preferably, the wollastonite has a particle size of 3 to 5. Mu.m.
Preferably, the epoxy resin is bisphenol A type epoxy resin, and the curing agent is phthalic anhydride or m-xylylenediamine; the solvent is benzene, toluene or acetone.
Preferably, the alumina has a particle size of 100 to 200nm.
The invention also provides a preparation method of the wear-resistant paint, which comprises the following steps:
(1) Mixing graphene oxide, silica micropowder and acetic acid aqueous solution to obtain modified graphene oxide;
(2) Mixing modified graphene oxide, wollastonite, epoxy resin and a solvent to obtain a component A;
(3) Mixing a curing agent, propylene glycol phenyl ether and alumina to obtain a component B;
(4) And mixing the component A and the component B to obtain the wear-resistant coating.
Preferably, in the step (1), the mass-volume ratio of the graphene oxide to the acetic acid aqueous solution is 1g: 40-50 mL;
the volume fraction of acetic acid in the acetic acid aqueous solution is 4-6%.
Preferably, the mixing in step (1) is sequentially performed by sonication, standing and drying;
the ultrasonic frequency is 25-30 KHz, and the time is 1.5-2.5 h;
the standing temperature is 20-30 ℃ and the time is 1-1.5 h;
the drying temperature is 50-70 ℃.
Preferably, the stirring speed of the mixing in the step (2) is 2000-3000 rpm, and the stirring time is 20-30 min;
the stirring speed of the mixing in the step (3) is 1000-1500 rpm, and the stirring time is 20-30 min.
Preferably, the stirring speed of the mixing in the step (4) is 3000 to 4000rpm, and the stirring time is 15 to 25 minutes.
The invention provides a wear-resistant paint, which comprises the following raw materials: graphene oxide, silicon micropowder, wollastonite, epoxy resin, curing agent, solvent, propylene glycol phenyl ether and alumina. The invention uses the epoxy resin as the main component to prevent the stress damage caused by the excessively hard surface of the paint after film formation. The graphene oxide has good mechanical property and lubricating property, and can improve the wear resistance of the coating. The silica powder, wollastonite and alumina are matched with different particle sizes, so that the silica powder, wollastonite and alumina can be effectively meshed together to enable the interior of the paint to be more compact, and the mechanical property of the paint can be improved while falling off in the use process is avoided. And the silicon micropowder is used for modifying the graphene oxide, and the carboxyl of the graphene oxide is combined with the silicon hydroxyl in the silicon micropowder, so that the agglomeration and caking of the graphene oxide in the paint can be effectively prevented, and the silicon micropowder can also improve the wear resistance of the paint. The invention also provides a preparation method of the wear-resistant coating, which comprises the steps of mixing graphene oxide, silicon micropowder and acetic acid aqueous solution to obtain modified graphene oxide; mixing modified graphene oxide, wollastonite, epoxy resin and a solvent to obtain a component A; mixing a curing agent, propylene glycol phenyl ether and alumina to obtain a component B; and mixing the component A and the component B to obtain the wear-resistant coating. The preparation method provided by the invention is simple, has low process requirements, and is suitable for large-scale preparation.
Detailed Description
The invention provides a wear-resistant coating which comprises the following raw materials in parts by mass: 10-15 parts of graphene oxide, 15-20 parts of silica micropowder, 5-10 parts of wollastonite, 55-65 parts of epoxy resin, 10-15 parts of curing agent, 15-25 parts of solvent, 5-8 parts of propylene glycol phenyl ether and 10-13 parts of alumina.
In the present invention, the graphene oxide is preferably 11 to 14 parts, more preferably 12 to 13 parts, and even more preferably 12.4 to 12.6 parts.
In the invention, the graphene oxide is prepared by adopting a Hummers method.
In the present invention, the fine silica powder is preferably 15.5 to 19.5 parts, more preferably 16 to 19 parts, and even more preferably 17 to 18 parts.
In the invention, the mass ratio of the components with the particle size of 0.1-0.2 μm to the components with the particle size of 0.3-0.45 μm in the silicon micro powder is preferably 2-2.5: 0.5 to 1.5, more preferably 2.1 to 2.4:0.6 to 1.4, more preferably 2.2 to 2.3:0.8 to 1.2.
In the present invention, the wollastonite is preferably 5.5 to 9.5 parts, more preferably 6 to 9 parts, and even more preferably 7 to 8 parts.
In the present invention, the wollastonite preferably has a particle diameter of 3 to 5. Mu.m, more preferably 3.5 to 4.5. Mu.m, still more preferably 3.8 to 4.2. Mu.m.
In the present invention, the epoxy resin is preferably 56 to 64 parts, more preferably 57 to 63 parts, and even more preferably 58 to 62 parts.
In the present invention, the curing agent is preferably 10.5 to 14.5, more preferably 11 to 14, and still more preferably 12 to 13.
In the present invention, the solvent is preferably 16 to 24 parts, more preferably 17 to 23 parts, and still more preferably 18 to 22 parts.
In the present invention, the epoxy resin is preferably bisphenol a type epoxy resin, and the curing agent is preferably phthalic anhydride or m-xylylenediamine; the solvent is preferably benzene, toluene or acetone.
In the present invention, the propylene glycol phenyl ether is preferably 5.5 to 7.5 parts, more preferably 5.8 to 7.2 parts, and still more preferably 6.2 to 6.8 parts.
In the present invention, the alumina is preferably 10.5 to 12.5 parts, more preferably 11 to 12 parts, and still more preferably 11.4 to 11.6 parts.
In the present invention, the particle diameter of the alumina is preferably 100 to 200nm, more preferably 120 to 180nm, and still more preferably 140 to 160nm.
The invention also provides a preparation method of the wear-resistant paint, which comprises the following steps:
(1) Mixing graphene oxide, silica micropowder and acetic acid aqueous solution to obtain modified graphene oxide;
(2) Mixing modified graphene oxide, wollastonite, epoxy resin and a solvent to obtain a component A;
(3) Mixing a curing agent, propylene glycol phenyl ether and alumina to obtain a component B;
(4) And mixing the component A and the component B to obtain the wear-resistant coating.
In the present invention, the mass-to-volume ratio of the graphene oxide to the aqueous acetic acid solution in the step (1) is preferably 1g:40 to 50mL, more preferably 1g:42 to 48mL, more preferably 1g: 44-46 mL.
In the present invention, the volume fraction of acetic acid in the aqueous acetic acid solution is preferably 4 to 6%, more preferably 4.5 to 5.5%, and still more preferably 4.8 to 5.2%.
In the present invention, the mixing in step (1) is preferably ultrasonic, standing and drying which are sequentially performed.
In the present invention, the frequency of the ultrasonic wave is preferably 25 to 30KHz, more preferably 26 to 29KHz, and even more preferably 27 to 28KHz; the time is preferably 1.5 to 2.5 hours, more preferably 1.6 to 2.4 hours, and still more preferably 1.8 to 2.2 hours.
In the present invention, the temperature of the standing is preferably 20 to 30 ℃, more preferably 22 to 28 ℃, still more preferably 24 to 26 ℃; the time is preferably 1 to 1.5 hours, more preferably 1.1 to 1.4 hours, and still more preferably 1.2 to 1.3 hours.
In the present invention, the drying temperature is preferably 50 to 70 ℃, more preferably 55 to 65 ℃, still more preferably 58 to 62 ℃, and the cake is obtained by drying to a constant weight.
In the present invention, the washing and re-drying are performed after the drying is completed, the reagent used for the washing is ethanol, and the block is completely immersed in the ethanol and stirred, wherein the stirring speed is preferably 200 to 300rpm, more preferably 220 to 280rpm, more preferably 240 to 260rpm, and the time is preferably 4 to 5min, more preferably 4.2 to 4.8min, more preferably 4.4 to 4.6min; and after the washing is finished, filtering and drying again, wherein the temperature for drying again is preferably 50-70 ℃, more preferably 55-65 ℃, still more preferably 58-62 ℃, and drying to constant weight, thus obtaining the modified graphene oxide.
In the present invention, the stirring speed of the mixing in the step (2) is preferably 2000 to 3000rpm, more preferably 2200 to 2800rpm, still more preferably 2400 to 2600rpm; the stirring time is preferably 20 to 30 minutes, more preferably 22 to 28 minutes, and still more preferably 24 to 26 minutes.
In the present invention, the stirring speed of the mixing in the step (3) is preferably 1000 to 1500rpm, more preferably 1100 to 1400rpm, still more preferably 1200 to 1300rpm; the stirring time is preferably 20 to 30 minutes, more preferably 22 to 28 minutes, and still more preferably 24 to 26 minutes.
In the present invention, the stirring speed of the mixing in the step (4) is preferably 3000 to 4000rpm, more preferably 3200 to 3800rpm, still more preferably 3400 to 3600rpm; the stirring time is preferably 15 to 25 minutes, more preferably 16 to 24 minutes, and still more preferably 18 to 22 minutes.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
Taking 13 parts of graphene oxide, 18 parts of silica powder, 8 parts of wollastonite, 60 parts of bisphenol A epoxy resin, 13 parts of m-xylylenediamine, 20 parts of toluene, 7 parts of propylene glycol phenyl ether and 12 parts of alumina;
wherein the mass ratio of the components with the diameters of 0.1-0.2 mu m and 0.3-0.45 mu m in the silicon micro powder is 2.3:1, wollastonite has a particle size of 4. Mu.m, and alumina has a particle size of 150nm.
Preparing 5% acetic acid aqueous solution, wherein the mass volume ratio of graphene oxide to acetic acid aqueous solution is 1g:50mL, mixing graphene oxide, silica micropowder and acetic acid aqueous solution, performing ultrasonic treatment at 28KHz for 2h, standing at 25 ℃ for 1.5h, and drying at 60 ℃ to constant weight to obtain a block; placing the block into ethanol, stirring for 5min at 250rpm, and drying at 60deg.C to constant weight to obtain modified graphene oxide; mixing the modified graphene oxide, wollastonite, epoxy resin and solvent, and stirring at 2500rpm for 25min to obtain a component A; mixing the curing agent, propylene glycol phenyl ether and alumina, and stirring at 1200rpm for 25min to obtain a component B; and mixing the component A and the component B, and stirring for 20min at a rotating speed of 3000rpm to obtain the wear-resistant coating.
The abrasion resistant coatings prepared in this example were tested for adhesion rating according to GB/T9286-1998, hardness according to GB/T6739-2006, abrasion resistance according to ASTMF2357-04, and the results are recorded in Table 1.
Example 2
10 parts of graphene oxide, 15 parts of silica micropowder, 6 parts of wollastonite, 58 parts of bisphenol A epoxy resin, 12 parts of phthalic anhydride, 23 parts of acetone, 5 parts of propylene glycol phenyl ether and 11 parts of alumina;
wherein the mass ratio of the components with the diameters of 0.1-0.2 mu m and 0.3-0.45 mu m in the silicon micro powder is 2.5:0.6, wollastonite having a particle size of 3.5 μm and alumina having a particle size of 180nm.
Preparing 4% acetic acid aqueous solution, wherein the mass volume ratio of graphene oxide to the acetic acid aqueous solution is 1g:45mL, mixing graphene oxide, silica micropowder and acetic acid aqueous solution, performing ultrasonic treatment at 30KHz for 1.8h, standing at 30 ℃ for 1.4h, and drying at 55 ℃ to constant weight to obtain a block; placing the block into ethanol, stirring for 5min at 300rpm, and drying at 60 ℃ until the weight is constant to obtain modified graphene oxide; mixing the modified graphene oxide, wollastonite, epoxy resin and solvent, and stirring at a rotating speed of 3000rpm for 20min to obtain a component A; mixing the curing agent, propylene glycol phenyl ether and alumina, and stirring at 1300rpm for 30min to obtain a component B; and mixing the component A and the component B, and stirring at 3600rpm for 15min to obtain the wear-resistant coating.
The abrasion resistant coating prepared in this example was tested as in example 1 and the results are reported in table 1.
Example 3
14 parts of graphene oxide, 18.5 parts of silicon micropowder, 9 parts of wollastonite, 64 parts of bisphenol A epoxy resin, 11 parts of phthalic anhydride, 16.5 parts of benzene, 7 parts of propylene glycol phenyl ether and 12 parts of aluminum oxide are taken;
wherein the mass ratio of the components with the diameters of 0.1-0.2 mu m and 0.3-0.45 mu m in the silicon micro powder is 2:1.2, wollastonite had a particle size of 4.5. Mu.m, and alumina had a particle size of 120nm.
Preparing 5.5% acetic acid aqueous solution, wherein the mass volume ratio of graphene oxide to the acetic acid aqueous solution is 1g:48mL, mixing graphene oxide, silica micropowder and acetic acid aqueous solution, performing ultrasonic treatment at 28KHz for 2.4h, standing at 23 ℃ for 1h, and drying at 65 ℃ to constant weight to obtain a block; placing the block into ethanol, stirring for 5min at 220rpm, and drying at 50deg.C to constant weight to obtain modified graphene oxide; mixing the modified graphene oxide, wollastonite, epoxy resin and solvent, and stirring for 30min at a rotation speed of 2500rpm to obtain a component A; mixing the curing agent, propylene glycol phenyl ether and alumina, and stirring at 1300rpm for 30min to obtain a component B; the component A and the component B are mixed and stirred at 4000rpm for 25min, so that the wear-resistant coating is obtained.
The abrasion resistant coating prepared in this example was tested as in example 1 and the results are reported in table 1.
Table 1 test results
From the above examples, the present invention provides a wear-resistant paint which is excellent in initial drying crack resistance after performance test, free from caking in a container and free from sedimentation; the adhesive force grade reaches 1 grade, the hardness can reach 4H at the highest, and the wear resistance reaches 1743 times. The coating provided by the invention has excellent wear resistance and other properties without reduction, and is a wear-resistant coating with excellent comprehensive properties.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The wear-resistant coating is characterized by comprising the following raw materials in parts by mass: 10-15 parts of graphene oxide, 15-20 parts of silica micropowder, 5-10 parts of wollastonite, 55-65 parts of epoxy resin, 10-15 parts of curing agent, 15-25 parts of solvent, 5-8 parts of propylene glycol phenyl ether and 10-13 parts of alumina.
2. The wear-resistant coating according to claim 1, wherein the mass ratio of the component with the particle size of 0.1-0.2 μm to the component with the particle size of 0.3-0.45 μm in the silicon micropowder is 2-2.5: 0.5 to 1.5.
3. The abrasion-resistant coating according to claim 1 or 2, wherein the wollastonite has a particle size of 3 to 5 μm.
4. A wear resistant coating according to claim 3 wherein said epoxy resin is bisphenol a type epoxy resin and said curing agent is phthalic anhydride or m-xylylenediamine; the solvent is benzene, toluene or acetone.
5. The abrasion-resistant coating according to claim 1 or 4, wherein the particle size of the alumina is 100 to 200nm.
6. The method for producing a wear-resistant coating material according to any one of claims 1 to 5, comprising the steps of:
(1) Mixing graphene oxide, silica micropowder and acetic acid aqueous solution to obtain modified graphene oxide;
(2) Mixing modified graphene oxide, wollastonite, epoxy resin and a solvent to obtain a component A;
(3) Mixing a curing agent, propylene glycol phenyl ether and alumina to obtain a component B;
(4) And mixing the component A and the component B to obtain the wear-resistant coating.
7. The method according to claim 6, wherein the mass-to-volume ratio of the graphene oxide to the aqueous acetic acid solution in the step (1) is 1g: 40-50 mL;
the volume fraction of acetic acid in the acetic acid aqueous solution is 4-6%.
8. The method of claim 6 or 7, wherein the mixing in step (1) is sequentially performed by sonication, standing and drying;
the ultrasonic frequency is 25-30 KHz, and the time is 1.5-2.5 h;
the standing temperature is 20-30 ℃ and the time is 1-1.5 h;
the drying temperature is 50-70 ℃.
9. The method according to claim 8, wherein the stirring speed of the mixing in the step (2) is 2000 to 3000rpm, and the stirring time is 20 to 30 minutes;
the stirring speed of the mixing in the step (3) is 1000-1500 rpm, and the stirring time is 20-30 min.
10. The method according to claim 8 or 9, wherein the stirring speed of the mixing in the step (4) is 3000 to 4000rpm and the stirring time is 15 to 25 minutes.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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