CN109593454A - A kind of polyurethane coating and its preparation method and application - Google Patents
A kind of polyurethane coating and its preparation method and application Download PDFInfo
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- CN109593454A CN109593454A CN201811572619.4A CN201811572619A CN109593454A CN 109593454 A CN109593454 A CN 109593454A CN 201811572619 A CN201811572619 A CN 201811572619A CN 109593454 A CN109593454 A CN 109593454A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- 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
- C09D7/20—Diluents or solvents
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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
- 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
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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
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Life Sciences & Earth Sciences (AREA)
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- Inorganic Chemistry (AREA)
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Abstract
The present invention provides a kind of polyurethane coating and its preparation method and application, the polyurethane coating includes component A and B component, and the component A includes the following component of weight percent: solvent 10-30%, dicarboxylic acid esters 2-8%, polyalcohol 45-75%, modified graphene oxide 0.5-4%, titanium dioxide 15-35%, polyamide wax 0.1-1%, bentonite 0.1-1% and 0.5-2% auxiliary agent；The B component is isocyanate curing agent.The present invention is by being added modified graphene oxide into component A, and cooperate the other compositions of component A, to be combined with B component, prepare polyurethane coating, so that the paint adhesion being prepared is high, acid resistance, alkali resistance, salt spray resistance are very excellent, for outdoor anticorrosion of steel structure, with excellent Corrosion Protection, and safety and environmental protection.
Description
Technical field
The invention belongs to technical field of coatings, it is related to a kind of polyurethane coating and its preparation method and application.
Background technique
Metal is easy to be corroded under various complex environments, in order to prevent the corrosion of metal structure, and on its surface, coating is anti-
Rotten coating can efficiently solve this problem, should guarantee anticorrosive paint adhesive force, weatherability, in terms of have
There is excellent performance, guarantees coating safety and environmental protection again.
108384429 A of CN discloses a kind of polyurethane coating, and the polyurethane coating prepares raw material and group subpackage
It includes: equal three nitrogen of azoformic acid dibenzyl ester 0.25g, polytetrahydrofuran ether glycol 72g, hexamethylene diisocyanate 18g, hexahydro
Borine 0.68g, methyl ethyl ketone 8.8g, modified manganese hypophosphite 1g, 4- Carboxybenzeneboronic acid 3.2g, N- hydroxy thiosuccinimide
3.5g, triethylamine 7.8g and water 70g obtain the polyurethane coating of fire-retardant, waterproof Yu low VOC, however the invention does not make
Polyurethane coating adhesive force, weatherability, in terms of have larger improvement.
Therefore, in this field, it is expected that developing, a kind of adhesive force is high, and acid resistance, alkali resistance, salt spray resistance are very excellent
Polyurethane coating.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of polyurethane coating and preparation method thereof and answer
With polyurethane coating adhesive force of the invention is high, has excellent acid resistance, alkali resistance and salt spray resistance, has good
Corrosion-resisting function, and safety and environmental protection.
To achieve this purpose, the present invention adopts the following technical scheme:
On the one hand, the present invention provides a kind of polyurethane coating, and the polyurethane coating includes component A and B component；
The component A includes the following component of weight percent:
The B component is isocyanate curing agent.
In the present invention, by being added modified graphene oxide into component A, and cooperate the other compositions of component A, with
It is combined with B component, prepares polyurethane coating, so that the paint adhesion being prepared is high, acid resistance, alkali resistance, salt fog resistance
It can be very excellent.
In the present invention, in the component A, solvent is preferably the mixed solvent of butyl ester and dimethylbenzene.
Preferably, in the component A, solvent be mass ratio be 2:1-5:1 (such as 2:1,2.3:1,2.5:1,2.8:1,3:
1,3.3:1,3.5:1,3.8:1,4:1,4.3:1,4.5:1,4.8:1 or 5:1) butyl ester and dimethylbenzene mixed solution, preferably
The mass ratio of butyl ester and dimethylbenzene is 3:1.
In the present invention, in the component A, the dosage of solvent can for 10%, 13%, 15%, 18%, 20%, 23%,
25%, 28% or 30%.
In the present invention, the dosage of the dicarboxylic acid esters can for 2%, 2.5%, 2.8%, 3%, 3.3%, 3.5%,
3.8%, 4%, 4.5%, 4.8%, 5%, 5.5%, 5.8%, 6%, 6.3%, 6.5%, 6.8%, 7%, 7.3%, 7.5%,
7.8% or 8%.
In the present invention, the polyalcohol is acrylic acid modified polyol resin.
In the present invention, the dosage of the polyalcohol can for 45%, 48%, 50%, 53%, 55%, 58%, 60%,
63%, 65%, 68%, 70%, 73% or 75%.
In the present invention, the modified graphene oxide is silane coupler modified graphene oxide.
Preferably, the silane coupling agent is the silane coupling agent with active amino, preferably gamma-aminopropyl-triethoxy silicon
Alkane or silane coupling agent Z-6011.
Preferably, the modified graphene oxide is prepared by the following method: graphene oxide being dispersed to organic molten
In agent, and silane coupling agent is added in the graphene oxide dispersion obtained backward, reacts, obtain the modified graphite oxide
Alkene.
Preferably, the organic solvent is the mixed solution or n,N-Dimethylformamide of dimethylbenzene and n-butanol.
Preferably, the mode of the dispersion is ultrasonic disperse.
Preferably, the time of the ultrasonic disperse be 10-40min, such as 10min, 13min, 15min, 18min,
20min, 25min, 28min, 30min, 35min, 38min or 40min.
In the present invention, in graphene oxide dispersion, relative to 1g graphene oxide, the dosage of the organic solvent is
10-100mL, for example, 10mL, 15mL, 20mL, 25mL, 30mL, 35mL, 40mL, 45mL, 50mL, 55mL, 60mL, 65mL,
70mL, 75mL, 80mL, 85mL, 90mL, 95mL or 100mL.
Preferably, the temperature of the reaction is 70-90 DEG C, such as 70 DEG C, 73 DEG C, 75 DEG C, 78 DEG C, 80 DEG C, 83 DEG C, 85
DEG C, 88 DEG C or 90 DEG C.
Preferably, the reaction carries out under stiring.
Preferably, the time of the reaction be 5-24 hours, such as 5 hours, 7 hours, 9 hours, 10 hours, 12 hours,
14 hours, 16 hours, 18 hours, 20 hours, 22 hours or 24 hours.
In the present invention, the dosage of the modified graphene oxide be 0.5%, 0.8%, 1%, 1.3%, 1.5%,
1.8%, 2%, 2.3%, 2.5%, 2.8%, 3%, 3.2%, 3.5%, 3.8% or 4%.
In the present invention, the dosage of the titanium dioxide can for 15%, 18%, 20%, 23%, 25%, 28%, 30%,
33% or 35%.
In the present invention, the dosage of the polyamide wax can for 0.1%, 0.2%, 0.3%, 0.4%, 0.5%,
0.6%, 0.7%, 0.8%, 0.9% or 1%.
In the present invention, the bentonitic dosage can for 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%,
0.7%, 0.8%, 0.9% or 1%.
In the present invention, the auxiliary dosage can be 0.5%, 0.8%, 1%, 1.3%, 1.5%, 1.8% or 2%.
Preferably, the auxiliary agent includes levelling agent, dispersing agent and defoaming agent.
Preferably, the isocyanate curing agent is toluene di-isocyanate(TDI) (TDI), '-diphenylmethane diisocyanate
(MDI) or in isophorone diisocyanate (IPDI) any one or at least two combination.
Preferably, the mass ratio of component A and B component is 3:1-9:1, such as 3:1,3.5:1,4:1,4.5:1,5:1,5.5:
1,6:1,6.5:1,7:1,7.5:1,8:1,8.3:1,8.5:1,8.8:1 or 9:1, preferably 4:1.
In the present invention, the preparation method of the polyurethane coating will form the ingredient mixing of component A, then by component A
It is mixed with B component, normal temperature cure, 25 DEG C curing time 7 days or more (such as 7 days, 8 days, 9 days, 10 days etc.), obtains the poly- ammonia
Ester paint.
On the other hand, the present invention provides the applications in polyurethane coating as described above outdoors anticorrosion of steel structure.
Preferably, the polyurethane coating is used for outdoor anticorrosion of steel structure as finishing coat.
Polyurethane coating of the invention can be used in outdoor anticorrosion of steel structure, have good acid resistance, alkali resistance, salt tolerant
Mist performance, adhesive force is high, and corrosion resistance is good.It can be applied anti-to enhance together with the modified anti-corrosion primer of graphene
Corrosive nature.
Compared with the existing technology, the invention has the following advantages:
The present invention cooperates the other compositions of component A by being added modified graphene oxide into component A, with B group
Divide and combine, prepare polyurethane coating, so that the paint adhesion being prepared is high, acid resistance, alkali resistance, salt spray resistance are non-
Chang Youyi, adhesive force can reach 13MPa or more, and acid resistance and alkali resistance can reach 2000h or more, and humidity resistance reaches
2200h or more, water resistance reach 5000h or more, have qualified temperature-change resistance energy and UV resistance, for outdoor steel knot
Structure anti-corrosion has excellent Corrosion Protection, and safety and environmental protection.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation.Those skilled in the art should be bright
, the described embodiments are merely helpful in understanding the present invention, should not be regarded as a specific limitation of the invention.
Embodiment 1
In the present embodiment, a kind of polyurethane coating is provided, the polyurethane coating includes the component A that mass ratio is 4:1
And B component；
The component A includes the following component of weight percent:
The B component is isocyanate curing agent, that is, toluene di-isocyanate(TDI).
Wherein the modified graphene oxide is silane coupler modified graphene oxide, and preparation method is as follows:
500mL is dispersed by the 6g graphene oxide after drying, in DMF (n,N-Dimethylformamide) solvent, ultrasound point
30min is dissipated, graphene oxide dispersion is made, then, is added 100g KH550 (gamma-aminopropyl-triethoxy-silane), heating
It to 80 DEG C, stirs 12 hours, after the reaction was completed, cleans 3 times with deionized water and be centrifugated, product is carried out at vacuum drying
Reason, obtains the modified graphene oxide.
The polyurethane coating the preparation method comprises the following steps: will form component A ingredient mix, then component A and B component are mixed
Close, normal temperature cure, 25 DEG C curing time 7 days, obtain the polyurethane coating.
Embodiment 2
In the present embodiment, a kind of polyurethane coating is provided, the polyurethane coating includes the component A that mass ratio is 4:1
And B component；
The component A includes the following component of weight percent:
The B component is isocyanate curing agent, that is, toluene di-isocyanate(TDI).
Wherein the modified graphene oxide is silane coupler modified graphene oxide, and preparation method is as follows:
180mL is dispersed by the 6g graphene oxide after drying, in DMF (n,N-Dimethylformamide) solvent, ultrasound point
25min is dissipated, graphene oxide dispersion is made, then, is added 100g KH550 (gamma-aminopropyl-triethoxy-silane), heating
It to 70 DEG C, stirs 20 hours, after the reaction was completed, cleans 3 times with deionized water and be centrifugated, product is carried out at vacuum drying
Reason, obtains the modified graphene oxide.
The polyurethane coating the preparation method comprises the following steps: will form component A ingredient mix, then component A and B component are mixed
Close, normal temperature cure, 25 DEG C curing time 7 days, obtain the polyurethane coating.
Embodiment 3
In the present embodiment, a kind of polyurethane coating is provided, the polyurethane coating includes the component A that mass ratio is 9:1
And B component；
The component A includes the following component of weight percent:
The B component is isocyanate curing agent, that is, toluene di-isocyanate(TDI).
Wherein the modified graphene oxide is silane coupler modified graphene oxide, and preparation method is as follows:
300mL is dispersed by the 6g graphene oxide after drying, in DMF (n,N-Dimethylformamide) solvent, ultrasound point
40min is dissipated, graphene oxide dispersion is made, then, is added 100g KH550 (gamma-aminopropyl-triethoxy-silane), heating
It to 900 DEG C, stirs 5 hours, after the reaction was completed, cleans 3 times with deionized water and be centrifugated, product is carried out at vacuum drying
Reason, obtains the modified graphene oxide.
The polyurethane coating the preparation method comprises the following steps: will form component A ingredient mix, then component A and B component are mixed
Close, normal temperature cure, 25 DEG C curing time 9 days, obtain the polyurethane coating.
Embodiment 4
In the present embodiment, a kind of polyurethane coating is provided, the polyurethane coating includes the component A that mass ratio is 5:1
And B component；
The component A includes the following component of weight percent:
The B component is isocyanate curing agent, that is, isophorone diisocyanate.
Wherein the modified graphene oxide is silane coupler modified graphene oxide, and preparation method is as follows:
600mL is dispersed by the 6g graphene oxide after drying, in DMF (n,N-Dimethylformamide) solvent, ultrasound point
10min is dissipated, graphene oxide dispersion is made, then, is added 100g KH550 (gamma-aminopropyl-triethoxy-silane), heating
It to 85 DEG C, stirs 18 hours, after the reaction was completed, cleans 3 times with deionized water and be centrifugated, product is carried out at vacuum drying
Reason, obtains the modified graphene oxide.
The polyurethane coating the preparation method comprises the following steps: will form component A ingredient mix, then component A and B component are mixed
Close, normal temperature cure, 25 DEG C curing time 7 days, obtain the polyurethane coating.
Embodiment 5
In the present embodiment, a kind of polyurethane coating is provided, the polyurethane coating includes the component A that mass ratio is 6:1
And B component；
The component A includes the following component of weight percent:
The B component is isocyanate curing agent, that is, '-diphenylmethane diisocyanate.
Wherein the modified graphene oxide is silane coupler modified graphene oxide, and preparation method is as follows:
400mL is dispersed by the 6g graphene oxide after drying, in DMF (n,N-Dimethylformamide) solvent, ultrasound point
20min is dissipated, graphene oxide dispersion is made, then, is added 100g KH550 (gamma-aminopropyl-triethoxy-silane), heating
It to 75 DEG C, stirs 24 hours, after the reaction was completed, cleans 3 times with deionized water and be centrifugated, product is carried out at vacuum drying
Reason, obtains the modified graphene oxide.
The polyurethane coating the preparation method comprises the following steps: will form component A ingredient mix, then component A and B component are mixed
Close, normal temperature cure, 25 DEG C curing time 8 days, obtain the polyurethane coating.
Comparative example 1
Difference from Example 1 is only that the mass ratio of component A and B component is 2:1.
Comparative example 2
Difference from Example 1 is only that the mass ratio of component A and B component is 10:1.
Comparative example 3
Difference from Example 1 is only that in component A that, without containing modified graphene oxide, titanium dioxide dosage is 23%.
Polyurethane coating prepared by embodiment and comparative example is coated on steel structure surface as finishing coat and is used for anti-corrosion, it is right
Its salt spray resistance, resistance to acid and alkali, resistance to salt water, water resistance and adhesion performance are measured, and testing standard and index are wanted
Ask as shown in table 1.
Table 1
It is as shown in table 2 to the actual performance test data of the coating of embodiment 1-5 and comparative example 1-3.
Table 2
The Applicant declares that the present invention is explained by the above embodiments polyurethane coating of the invention and preparation method thereof and
Using, but the present invention is not limited to the above embodiments, that is, does not mean that the present invention must rely on above-described embodiment and could implement.
It should be clear to those skilled in the art, any improvement in the present invention, equivalent the replacing to each raw material of product of the present invention
It changes and the addition of auxiliary element, the selection of concrete mode etc., all of which fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. a kind of polyurethane coating, which is characterized in that the polyurethane coating includes component A and B component；
The component A includes the following component of weight percent:
The B component is isocyanate curing agent.
2. polyurethane coating according to claim 1, which is characterized in that in the component A, solvent is preferably butyl ester and two
The mixed solvent of toluene；
Preferably, in the component A, solvent is the mixed solution of the butyl ester that mass ratio is 2:1-5:1 and dimethylbenzene, preferably butyl ester
Mass ratio with dimethylbenzene is 3:1.
3. polyurethane coating according to claim 1 or 2, which is characterized in that the polyalcohol is acrylic acid modified more
First alcohol resin.
4. polyurethane coating according to any one of claim 1-3, which is characterized in that the modified graphene oxide is
Silane coupler modified graphene oxide；
Preferably, the silane coupling agent be the silane coupling agent with active amino, preferably gamma-aminopropyl-triethoxy-silane or
Silane coupling agent Z-6011.
5. polyurethane coating described in any one of -4 according to claim 1, which is characterized in that the modified graphene oxide by
Following method is prepared: in the graphene oxide dispersion that graphene oxide is dispersed in organic solvent, and is obtained backward
Silane coupling agent is added, reaction obtains the modified graphene oxide；
Preferably, the organic solvent is the mixed solution or n,N-Dimethylformamide of dimethylbenzene and n-butanol；
Preferably, the mode of the dispersion is ultrasonic disperse；
Preferably, the time of the ultrasonic disperse is 10-40min.
6. polyurethane coating according to claim 5, which is characterized in that in graphene oxide dispersion, relative to 1g oxygen
Graphite alkene, the dosage of the organic solvent are 10-100mL；
Preferably, the temperature of the reaction is 70-90 DEG C；
Preferably, the reaction carries out under stiring；
Preferably, the time of the reaction is 5-24 hours.
7. polyurethane coating according to claim 1 to 6, which is characterized in that the auxiliary agent include levelling agent,
Dispersing agent and defoaming agent；
Preferably, the isocyanate curing agent is toluene di-isocyanate(TDI), '-diphenylmethane diisocyanate or isophorone two
In isocyanates any one or at least two combination.
8. polyurethane coating described in any one of -7 according to claim 1, which is characterized in that the mass ratio of component A and B component
For 3:1-9:1.
9. the preparation method of polyurethane coating according to claim 1 to 8, which is characterized in that the preparation side
Method are as follows: the ingredient for forming component A is mixed, then component A is mixed, normal temperature cure with B component, is conserved 7 days or more at 25 DEG C,
Obtain the polyurethane coating.
10. polyurethane coating according to claim 1 to 8 application in anticorrosion of steel structure outdoors；
Preferably, the polyurethane coating is used for outdoor anticorrosion of steel structure as finishing coat.
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Cited By (5)
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| CN110804328A (en) * | 2019-11-05 | 2020-02-18 | 徐州汉通电子科技有限公司 | Polyurethane coating for electronic element |
| CN113087679A (en) * | 2020-01-08 | 2021-07-09 | 万华化学集团股份有限公司 | Polyisocyanate curing agent with low free monomer, preparation method, coating composition and application |
| CN114163916A (en) * | 2021-12-23 | 2022-03-11 | 重庆品涂新材料科技有限公司 | Waterproof paint and production method thereof |
| CN114736597A (en) * | 2022-03-31 | 2022-07-12 | 吉林大学 | Bionic porous cavitation-resistant coating and coating |
| CN116904103A (en) * | 2023-06-16 | 2023-10-20 | 龙蟒大地农业有限公司 | Low-carbon environment-friendly functionalized graphene oxide polyurethane coating and preparation method thereof |
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| CN113087679A (en) * | 2020-01-08 | 2021-07-09 | 万华化学集团股份有限公司 | Polyisocyanate curing agent with low free monomer, preparation method, coating composition and application |
| CN114163916A (en) * | 2021-12-23 | 2022-03-11 | 重庆品涂新材料科技有限公司 | Waterproof paint and production method thereof |
| CN114736597A (en) * | 2022-03-31 | 2022-07-12 | 吉林大学 | Bionic porous cavitation-resistant coating and coating |
| CN114736597B (en) * | 2022-03-31 | 2022-08-30 | 吉林大学 | Bionic porous cavitation-resistant coating and coating |
| CN116904103A (en) * | 2023-06-16 | 2023-10-20 | 龙蟒大地农业有限公司 | Low-carbon environment-friendly functionalized graphene oxide polyurethane coating and preparation method thereof |
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