CN113881321A - High-solid-content graphene zinc powder heavy-duty anticorrosive coating and preparation method thereof - Google Patents
High-solid-content graphene zinc powder heavy-duty anticorrosive coating and preparation method thereof Download PDFInfo
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- CN113881321A CN113881321A CN202111319409.6A CN202111319409A CN113881321A CN 113881321 A CN113881321 A CN 113881321A CN 202111319409 A CN202111319409 A CN 202111319409A CN 113881321 A CN113881321 A CN 113881321A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
Abstract
The invention relates to a high-solid-content graphene zinc powder heavy-duty anticorrosive coating which is composed of the following components in parts by weight: 4.1-8.2% of modified graphene, 4.1-9.3% of zinc powder, 2.6-4.5% of polyolefin, 8.1-11.4% of epoxy resin, 0.3-2.4% of polypropylene, 0.5-1.1% of reactive diluent, 0-2.1% of pigment, 1.1-3.1% of metal oxide powder, 0.1-2.8% of curing agent, 0.5-2.1% of adhesion promoter, 1.4-3.8% of film-forming assistant, 0.5-2.15% of copolymerization catalyst and the balance of organic solvent. The preparation method comprises three steps of preparing a dissolving solution, mixing solid materials, mixing materials and the like. The invention effectively simplifies the production process and the production cost, improves the production efficiency, can effectively improve the production operation efficiency, effectively improves the protection quality, and simultaneously overcomes the defects that the traditional like anticorrosive coatings usually need two components to be produced and mixed for use simultaneously, thereby greatly improving the use flexibility and convenience and effectively reducing the use difficulty and cost.
Description
Technical Field
The invention relates to a high-solid-content graphene zinc powder heavy-duty anticorrosive coating and a preparation method thereof, belonging to the technical field of protection.
Background
The graphene zinc powder heavy anti-corrosion coating is one of important anti-corrosion coatings at present, the amount of the coating is huge, the coating is prepared by mixing a plurality of material components in production and use of the current graphene zinc powder heavy anti-corrosion coating, two or three product components are required and stored respectively in the production of the anti-corrosion coating, and then the components are mixed and sprayed in use, so that the aim of spraying protection is fulfilled, for example, the product of ' graphene modified zinc powder, preparation method and application thereof in water-based anti-corrosion coating ' with the patent application number of ' 2018108260984 ', the high solid content heavy anti-corrosion coating and preparation method thereof ' with the patent application number of ' 201911175521X ' and the like can meet the use requirement to a certain degree, but the product has great production and use difficulty and use flexibility, so that the cost, difficulty and labor intensity of protection operation are great, the protective effect of the anticorrosive paint is poor due to mixing errors of workers; although a graphene zinc powder heavy-duty anticorrosive coating product with the components is also developed at present, such as '2018103243605' patent application number 'a preparation method of graphene epoxy zinc powder composite anticorrosive coating', although the production and use difficulty of the graphene zinc powder heavy-duty anticorrosive coating is simplified, the protection performance is relatively poor, the weather resistance and the corrosion resistance are poorer than those of the traditional multi-component graphene zinc powder heavy-duty anticorrosive coating, and the requirement of practical use is still difficult to effectively meet.
Therefore, in order to solve the problem, the development of a high-solid-content graphene zinc powder heavy-duty anticorrosive coating and a preparation method thereof are urgently needed so as to meet the actual use requirement.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a high-solid-content graphene zinc powder heavy-duty anticorrosive coating and a preparation method thereof.
The heavy anti-corrosion coating with the high solid content of the graphene zinc powder comprises the following components in parts by weight: 4.1-8.2% of modified graphene, 4.1-9.3% of zinc powder, 2.6-4.5% of polyolefin, 8.1-11.4% of epoxy resin, 0.3-2.4% of polypropylene, 0.5-1.1% of reactive diluent, 0-2.1% of pigment, 1.1-3.1% of metal oxide powder, 0.1-2.8% of curing agent, 0.5-2.1% of adhesion promoter, 1.4-3.8% of film-forming assistant, 0.5-2.15% of copolymerization catalyst and the balance of organic solvent.
Furthermore, the particle diameters of the zinc powder and the metal oxide powder are not more than 500 meshes.
Further, the curing agent is an aqueous curing agent H228B; the epoxy resin is any one of low molecular weight bisphenol A type epoxy resin, medium molecular weight bisphenol A type epoxy resin and high molecular weight bisphenol A type epoxy resin; the metal oxide powder is any one or more of aluminum oxide, magnesium oxide and copper oxide; the adhesion promoter is a silane adhesion promoter; the film-forming assistant is any one of propylene glycol propyl ether, diethyl diacid and ethylene glycol butyl ether alcohol acid ester.
Further, the organic solvent is any one of xylene, ethanol, n-butanol, toluene, propylene glycol methyl ether and cyclohexanone.
A preparation method of a high-solid-content graphene zinc powder heavy-duty anticorrosive coating comprises the following steps:
s1, preparing a dissolved solution, namely adding an organic solvent and deionized water into a mixing kettle of a preparation device, uniformly stirring the organic solvent and the deionized water by ultrasonic oscillation, and adjusting the mixed solution after mixing to 30-60 ℃ along with the temperature in the reaction kettle; then carrying out ultrasonic homogenization treatment on the polypropylene, the active diluent and the copolymerization catalyst, and preserving the mixed solution at constant temperature;
s2, mixing solid-content materials, stirring and mixing zinc powder, polyolefin, metal oxide powder and modified graphene in a solid state after the step S1 is completed, adding the mixed solid mixture into epoxy resin together, and performing ultrasonic mixing and homogenization to obtain a solid-content mixture;
and S3, mixing the materials, adding the mixture prepared in the step S2, the pigment, the curing agent, the adhesion promoter and the film-forming aid into the mixed solution prepared in the step S1, and continuously carrying out ultrasonic homogenization operation at the constant temperature of 60-80 ℃ until the water content in the mixture is not more than 1%.
Furthermore, the preparation equipment comprises a bearing frame, a reaction kettle, a feeding pipe, a flow guide branch pipe, multi-way valves, a booster pump and a driving circuit, wherein the bearing frame is of a frame structure with the axis vertical to the horizontal plane, the axial section of the bearing frame is of a U-shaped groove-shaped structure, at least two reaction kettles are embedded in the bearing frame and uniformly distributed around the axis of the bearing frame and are in sliding connection with the inner surface of the side wall of the bearing frame, the reaction kettle is provided with two feeding ports, the lower end surface of the reaction kettle is provided with a discharge port, one feeding port of the reaction kettle is communicated with the feeding pipe through the flow guide branch pipe, the discharge port of the reaction kettle is communicated with the multi-way valves through the flow guide pipe, the multi-way valves are communicated with the booster pump through the flow guide pipe, the booster pump is communicated with the lower end surface of the feeding pipe through the flow guide pipe, the feeding pipe is embedded in the bearing frame and coaxially distributed with the bearing frame, the outer side surface of the feeding pipe is connected with the inner side surface of the bearing frame, the driving circuit is connected with the outer side face of the bearing frame and is respectively electrically connected with the reaction kettle, the multi-way valve and the booster pump.
Further, reation kettle be blending tank, sealed lid, ultrasonic oscillation mechanism, temperature sensor, electrode tip and negative-pressure air fan, wherein the blending tank is "U" font structure for axial cross-section, and its up end is connected with sealed lid and constitutes airtight cavity structures, the charge door inlays in sealed lid, and the bin outlet inlays in blending tank bottom, ultrasonic oscillation mechanism is at least two, encircles blending tank axis equipartition and with blending tank lateral wall internal surface connection, temperature sensor inlays in the blending tank and is connected with sealed lid lower extreme facial features, negative-pressure air fan is connected with the blending tank outer surface to communicate through air duct and one of them charge door, communicate through the three-way valve between air duct and the charge door, at least two of electrode tip encircle the blending tank axis and inlay in blending tank bottom, ultrasonic oscillation mechanism, temperature sensor, negative-pressure air fan, The electrode tip and the three-way valve are electrically connected with the driving circuit.
Furthermore, the ultrasonic oscillation mechanism is in sliding connection with the inner surface of the side wall of the mixing tank through a lifting driving mechanism.
Further, the feeding pipe comprises a guide pipe body, a sealing head, a negative pressure pump, a conveying pipe, a tray and a lifting driving mechanism, wherein the guide pipe body is a hollow tubular structure with a rectangular axial section, the side surface of the upper half part of the guide pipe body is provided with a drainage hole and is communicated with a guide branch pipe through the drainage hole, the upper end surface and the lower end surface of the guide pipe body are both connected with one sealing head to form a closed cavity structure, the sealing heads of the lower end surface and the upper end surface of the guide pipe body are both provided with a guide hole which is coaxially distributed with the guide pipe body, the sealing head of the lower end surface of the guide pipe body is communicated with the guide pipe through the guide hole, the guide hole of the sealing head of the upper end surface of the guide pipe body is communicated with the negative pressure pump through the guide pipe, the negative pressure pump is connected with the outer surface of the guide pipe body, the conveying pipe is embedded in the guide pipe body and is coaxially distributed with the guide pipe body and is communicated with the guide hole of the lower end surface of the guide pipe body, the upper end face of the conveying pipe is at least 10 cm higher than the upper end face of the flow guide pipe body, the tray is embedded in the flow guide pipe body, is coaxially distributed with the flow guide pipe body and is wrapped outside the conveying pipe, is respectively in sliding connection with the inner side face of the flow guide pipe body and the outer side face of the conveying pipe, is in sliding connection with the flow guide pipe body through at least two lifting driving mechanisms, is of an H-shaped groove-shaped structure in the axial section, is not more than 50% of the height of the conveying pipe, is located below the drainage holes and is 0-95% of the distance between the drainage holes and the bottom of the flow guide pipe body, and is located at the lowest position, the lower end face of the tray is distributed in parallel and level with the bottom of the flow guide pipe body, and the lifting driving mechanisms and the negative pressure pump are electrically connected with the driving circuit.
Furthermore, the driving circuit is a circuit system based on any one of an FPGA chip and a programmable controller.
Compared with the traditional process, the invention effectively simplifies the production process and the production cost, improves the production efficiency, can effectively improve the production operation efficiency, effectively improves the protection quality, and simultaneously overcomes the defects that the traditional similar anticorrosive coating needs two components to be produced and mixed for use, thereby greatly improving the use flexibility and convenience and effectively reducing the use difficulty and cost.
Drawings
The invention is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a schematic view of a manufacturing apparatus;
fig. 3 is a schematic view of the feeding pipe structure.
Detailed Description
In order to facilitate the implementation of the technical means, creation features, achievement of the purpose and the efficacy of the invention, the invention is further described below with reference to specific embodiments.
Example 1
As shown in fig. 1, the modified graphene is 4.1%, the zinc powder is 4.1%, the polyolefin is 2.6%, the epoxy resin is 8.1%, the polypropylene is 0.3%, the reactive diluent is 0.5%, the metal oxide powder is 1.1%, the curing agent is 0.1%, the adhesion promoter is 0.5%, the film-forming assistant is 1.4%, the copolymerization catalyst is 0.5%, and the balance is an organic solvent.
In this embodiment, the particle sizes of the zinc powder, the polyolefin powder and the metal oxide powder are not greater than 500 meshes.
In the embodiment, the curing agent is a water-based curing agent H228B; the epoxy resin is low molecular weight bisphenol A epoxy resin; the metal oxide powder is aluminum oxide; the adhesion promoter is a silane adhesion promoter; the film-forming assistant is propylene glycol propyl ether; the initiator is benzoyl oxide.
In this embodiment, the organic solvent is xylene.
A preparation method of a high-solid-content graphene zinc powder heavy-duty anticorrosive coating comprises the following steps:
s1, preparing a dissolving solution, namely adding an organic solvent and deionized water into a mixing kettle of a preparation device, uniformly stirring the organic solvent and the deionized water by ultrasonic oscillation, and adjusting the mixed solution after mixing to 30 ℃ along with the temperature in the reaction kettle; then carrying out ultrasonic homogenization treatment on the polypropylene, the active diluent and the copolymerization catalyst, and preserving the mixed solution at constant temperature;
s2, mixing solid-content materials, stirring and mixing zinc powder, polyolefin, metal oxide powder and modified graphene in a solid state after the step S1 is completed, adding the mixed solid mixture into epoxy resin together, and performing ultrasonic mixing and homogenization to obtain a solid-content mixture;
and S3, mixing the materials, adding the mixture prepared in the step S2, a curing agent, an adhesion promoter and a film-forming aid into the mixed solution prepared in the step S1, and continuously carrying out ultrasonic homogenization operation in a constant temperature environment of 60 ℃ until the water content in the mixture is not more than 1%.
Example 2
As shown in figure 1, the high-solid-content graphene zinc powder heavy-duty anticorrosive coating is composed of the following components in parts by weight: 8.2% of modified graphene, 9.3% of zinc powder, 4.5% of polyolefin, 11.4% of epoxy resin, 2.4% of polypropylene, 1.1% of active diluent, 2.1% of pigment, 3.1% of metal oxide powder, 2.8% of curing agent, 2.1% of adhesion promoter, 3.8% of film-forming assistant, 2.15% of copolymerization catalyst and the balance of organic solvent.
In this embodiment, the particle sizes of the zinc powder and the metal oxide powder are not larger than 500 meshes.
In the embodiment, the curing agent is a water-based curing agent H228B; the epoxy resin is bisphenol A epoxy resin with medium molecular weight; the metal oxide powder is magnesium oxide; the adhesion promoter is a silane adhesion promoter; the film-forming assistant is diethyl diacid.
In this embodiment, the organic solvent is ethanol.
A preparation method of a high-solid-content graphene zinc powder heavy-duty anticorrosive coating comprises the following steps:
s1, preparing a dissolving solution, namely adding an organic solvent and deionized water into a mixing kettle of a preparation device, uniformly stirring the organic solvent and the deionized water by ultrasonic oscillation, and adjusting the mixed solution after mixing to 60 ℃ along with the temperature in the reaction kettle; then carrying out ultrasonic homogenization treatment on the polypropylene, the active diluent and the copolymerization catalyst, and preserving the mixed solution at constant temperature;
s2, mixing solid-content materials, stirring and mixing zinc powder, polyolefin, metal oxide powder and modified graphene in a solid state after the step S1 is completed, adding the mixed solid mixture into epoxy resin together, and performing ultrasonic mixing and homogenization to obtain a solid-content mixture;
and S3, mixing the materials, adding the mixture prepared in the step S2, the pigment, the curing agent, the adhesion promoter and the film-forming aid into the mixed solution prepared in the step S1, and continuously performing ultrasonic homogenization operation in a constant temperature environment of 80 ℃ until the water content in the mixture is not more than 1%.
Example 3
As shown in figure 1, the high-solid-content graphene zinc powder heavy-duty anticorrosive coating is composed of the following components in parts by weight: 5.5 percent of modified graphene, 6.3 percent of zinc powder, 3.1 percent of polyolefin, 10.5 percent of epoxy resin, 1.4 percent of polypropylene, 0.8 percent of active diluent, 1.1 percent of pigment, 1.5 percent of metal oxide powder, 1.1 percent of curing agent, 1.3 percent of adhesion promoter, 2.4 percent of film-forming assistant, 1.3 percent of copolymerization catalyst and the balance of organic solvent.
In this embodiment, the particle sizes of the zinc powder and the metal oxide powder are not larger than 500 meshes.
In the embodiment, the curing agent is a water-based curing agent H228B; the epoxy resin is any one of high molecular weight bisphenol A type epoxy resins; the metal oxide powder is copper oxide; the adhesion promoter is a silane adhesion promoter; the film-forming assistant is any one of ethylene glycol butyl ether alcohol acid ester.
In this embodiment, the organic solvent is n-butanol.
A preparation method of a high-solid-content graphene zinc powder heavy-duty anticorrosive coating comprises the following steps:
s1, preparing a dissolving solution, namely adding an organic solvent and deionized water into a mixing kettle of a preparation device, uniformly stirring the organic solvent and the deionized water by ultrasonic oscillation, and adjusting the mixed solution after mixing to 50 ℃ along with the temperature in the reaction kettle; then carrying out ultrasonic homogenization treatment on the polypropylene, the active diluent and the copolymerization catalyst, and preserving the mixed solution at constant temperature;
s2, mixing solid-content materials, stirring and mixing zinc powder, polyolefin, metal oxide powder and modified graphene in a solid state after the step S1 is completed, adding the mixed solid mixture into epoxy resin together, and performing ultrasonic mixing and homogenization to obtain a solid-content mixture;
and S3, mixing the materials, adding the mixture prepared in the step S2, the pigment, the curing agent, the adhesion promoter and the film-forming aid into the mixed solution prepared in the step S1, and continuously performing ultrasonic homogenization operation in a constant temperature environment of 70 ℃ until the water content in the mixture is not more than 1%.
Example 4
As shown in figure 1, the high-solid-content graphene zinc powder heavy-duty anticorrosive coating is composed of the following components in parts by weight: 7.5% of modified graphene, 8.1% of zinc powder, 3.1% of polyolefin, 9.5% of epoxy resin, 1.1% of polypropylene, 0.9% of active diluent, 2% of pigment, 2.3% of metal oxide powder, 1.2% of curing agent, 1.6% of adhesion promoter, 3.2% of film-forming assistant, 1.3% of copolymerization catalyst and the balance of organic solvent.
In this embodiment, the particle sizes of the zinc powder and the metal oxide powder are not larger than 500 meshes.
In the embodiment, the curing agent is a water-based curing agent H228B; the epoxy resin is low molecular weight bisphenol A epoxy resin; the metal oxide powder is prepared by mixing aluminum oxide, magnesium oxide and copper oxide at a ratio of 1: 1; the adhesion promoter is a silane adhesion promoter; the film-forming assistant is diethyl diacid.
In this embodiment, the organic solvent is cyclohexanone.
A preparation method of a high-solid-content graphene zinc powder heavy-duty anticorrosive coating comprises the following steps:
s1, preparing a dissolving solution, namely adding an organic solvent and deionized water into a mixing kettle of a preparation device, uniformly stirring the organic solvent and the deionized water by ultrasonic oscillation, and adjusting the mixed solution after mixing to 45 ℃ along with the temperature in the reaction kettle; then carrying out ultrasonic homogenization treatment on the polypropylene, the active diluent and the copolymerization catalyst, and preserving the mixed solution at constant temperature;
s2, mixing solid-content materials, stirring and mixing zinc powder, polyolefin, metal oxide powder and modified graphene in a solid state after the step S1 is completed, adding the mixed solid mixture into epoxy resin together, and performing ultrasonic mixing and homogenization to obtain a solid-content mixture;
and S3, mixing the materials, adding the mixture prepared in the step S2, the pigment, the curing agent, the adhesion promoter and the film-forming aid into the mixed solution prepared in the step S1, and continuously performing ultrasonic homogenization operation in a constant temperature environment of 75 ℃ until the water content in the mixture is not more than 1%.
In the concrete implementation of the invention, as shown in fig. 2 and 3, the preparation equipment for mixing materials comprises a bearing frame 1, a reaction kettle 2, a feeding pipe 3, a diversion branch pipe 4, a multi-way valve 5, a booster pump 6 and a driving circuit 7, wherein the bearing frame 1 is a frame structure with the axis vertical to the horizontal plane, the axial section of the bearing frame is in a U-shaped groove-shaped structure, at least two reaction kettles 2 are embedded in the bearing frame 1 and uniformly distributed around the axis of the bearing frame 1 and are in sliding connection with the inner surface of the side wall of the bearing frame 1, the reaction kettle 2 is provided with two feeding ports 201, the lower end surface is provided with a discharge port 202, one feeding port 201 of the reaction kettle 2 is communicated with the feeding pipe 3 through the diversion branch pipe 4, the diversion branch pipe 4 is provided with a control valve 8, the discharge port 202 of the reaction kettle 2 is communicated with the multi-way valve 5 through a diversion pipe, the multi-way valve 5 is communicated with the booster pump 6 through a diversion pipe, booster pump 6 passes through honeycomb duct and feed pipe 3 lower terminal surface intercommunication, feed pipe 3 inlays in bearing frame 1 and with bear frame 1 coaxial distribution, 3 lateral surfaces of feed pipe are connected with bearing frame 1 medial surface, drive circuit 7 is connected with bearing frame 1 lateral surface to respectively with reation kettle 2, multi-ported valve 5, booster pump 6 electrical connection.
Wherein, the reaction kettle 2 comprises a mixing tank 21, a sealing cover 22, an ultrasonic oscillation mechanism 23, temperature sensors 24, electrode tips 25 and a negative pressure fan 26, wherein the mixing tank 21 has a U-shaped cross section, the upper end surface of the mixing tank is connected with the sealing cover 22 to form a closed cavity structure, the feed inlet 201 is embedded in the sealing cover 22, the discharge outlet 202 is embedded in the bottom of the mixing tank 21, at least two ultrasonic oscillation mechanisms 23 are uniformly distributed around the axis of the mixing tank 21 and are connected with the inner surface of the side wall of the mixing tank 21, the temperature sensors 24 are embedded in the mixing tank 24 and are connected with the lower end surface of the sealing cover 22, the negative pressure fan 26 is connected with the outer surface of the mixing tank 21 and is communicated with one of the feed inlets 201 through an air duct 27, the air duct 27 is communicated with the feed inlet 201 through a three-way valve 28, at least two electrode tips 25 are embedded in the bottom of the mixing tank 21 around the axis of the mixing tank 21, the ultrasonic oscillation mechanism 23, the temperature sensor 24, the electrode tip 25, and the three-way valve 28 are electrically connected to the drive circuit 7.
It should be noted that the ultrasonic oscillation mechanism 23 is slidably connected to the inner surface of the sidewall of the mixing tank 21 via a lifting driving mechanism 29.
In addition, the feeding pipe 3 comprises a guide pipe body 31, a sealing head 32, a negative pressure pump 33, a conveying pipe 34, a tray 35 and a lifting driving mechanism 29, wherein the guide pipe body 21 is a hollow tubular structure with a rectangular axial section, a drainage hole 36 is arranged on the side surface of the upper half part of the guide pipe body and is communicated with the guide branch pipe 4 through the drainage hole 36, the upper end surface and the lower end surface of the guide pipe body 1 are both connected with the sealing head 32 to form a closed cavity structure, a guide hole 37 coaxially distributed with the guide pipe body 31 is arranged on the sealing head 32 on the lower end surface and the upper end surface of the guide pipe body 31, the sealing head 32 on the lower end surface of the guide pipe body 31 is communicated with the guide pipe through the guide hole 37, the guide hole 37 on the sealing head 32 on the upper end surface of the guide pipe body 31 is communicated with the negative pressure pump 33 through the guide pipe, the negative pressure pump 33 is connected with the outer surface of the guide pipe body 31, the conveying pipe 34 is embedded in the guide pipe body 31, the tray 35 is embedded in the guide pipe body 31, coaxially distributed with the guide pipe body 31 and coated outside the delivery pipe 34, the tray 35 is respectively connected with the inner side surface of the guide pipe body 31 and the outer side surface of the delivery pipe 34 in a sliding manner, the lower end surface of the tray 35 is connected with the guide pipe body 31 in a sliding manner through at least two lifting driving mechanisms 29, the tray 35 is of an H-shaped groove-shaped structure with the axial section being not more than 50% of the height of the delivery pipe 34, the upper end surface of the tray 35 is positioned below the drainage hole 36, the distance between the upper end surface of the tray 35 and the drainage hole 36 is 0-95% of the distance between the drainage hole 36 and the bottom of the guide pipe body 31, and when the tray 35 is positioned at the lowest position, the lower end surface of the tray 35 is distributed in parallel and level with the bottom of the guide pipe body 31, the elevation drive mechanism 29 and the negative pressure pump 33 are electrically connected to a drive circuit.
During feeding operation, on one hand, the air pressure in the feeding pipe can be reduced through the negative pressure pump, and the purpose of improving the feeding operation efficiency is achieved by utilizing the pressure difference; on the other hand is in operation, after the material loading operation is completed, the supporting plate can be driven to move upwards by the lifting driving mechanism, the material loading is cleaned by the supporting plate in the material loading pipe body in the upward moving process, and the waste and the loss caused by material residue are reduced.
In this embodiment, the driving circuit 7 is a circuit system based on any one of an FPGA chip and a programmable controller.
Meanwhile, when the materials are stirred and mixed by the reaction kettle, an electric field can be applied to the materials in the reaction kettle through the electrode head to carry out corona treatment on the materials, so that the activity of each material component and the molecular acting force among the material components are improved, and the aims of improving the product quality and the mixing efficiency are fulfilled.
Compared with the traditional process, the invention effectively simplifies the production process and the production cost, improves the production efficiency, can effectively improve the production operation efficiency, effectively improves the protection quality, and simultaneously overcomes the defects that the traditional similar anticorrosive coating needs two components to be produced and mixed for use, thereby greatly improving the use flexibility and convenience and effectively reducing the use difficulty and cost.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The heavy anti-corrosion coating with high solid content of graphene zinc powder is characterized by comprising the following components in parts by weight: the high-solid-content graphene zinc powder heavy-duty anticorrosive coating comprises the following components in parts by weight: 4.1-8.2% of modified graphene, 4.1-9.3% of zinc powder, 2.6-4.5% of polyolefin, 8.1-11.4% of epoxy resin, 0.3-2.4% of polypropylene, 0.5-1.1% of reactive diluent, 0-2.1% of pigment, 1.1-3.1% of metal oxide powder, 0.1-2.8% of curing agent, 0.5-2.1% of adhesion promoter, 1.4-3.8% of film-forming assistant, 0.5-2.15% of copolymerization catalyst and the balance of organic solvent.
2. The heavy anti-corrosion coating with high solid content of graphene zinc powder as claimed in claim 1, which is characterized in that: the grain diameters of the zinc powder and the metal oxide powder are not more than 500 meshes.
3. The heavy anti-corrosion coating with high solid content of graphene zinc powder as claimed in claim 1, which is characterized in that: the curing agent is a water-based curing agent H228B; the epoxy resin is any one of low molecular weight bisphenol A type epoxy resin, medium molecular weight bisphenol A type epoxy resin and high molecular weight bisphenol A type epoxy resin; the metal oxide powder is any one or more of aluminum oxide, magnesium oxide and copper oxide; the adhesion promoter is a silane adhesion promoter; the film-forming assistant is any one of propylene glycol propyl ether, diethyl diacid and ethylene glycol butyl ether alcohol acid ester.
4. The heavy anti-corrosion coating with high solid content of graphene zinc powder as claimed in claim 1, which is characterized in that: the organic solvent is any one of dimethylbenzene, ethanol, n-butanol, toluene, propylene glycol monomethyl ether and cyclohexanone.
5. A preparation method of a high-solid-content graphene zinc powder heavy-duty anticorrosive coating is characterized by comprising the following steps: the preparation method of the high-solid-content graphene zinc powder heavy anti-corrosion coating comprises the following steps:
s1, preparing a dissolved solution, namely adding an organic solvent and deionized water into a mixing kettle of a preparation device, uniformly stirring the organic solvent and the deionized water by ultrasonic oscillation, and adjusting the mixed solution after mixing to 30-60 ℃ along with the temperature in the reaction kettle; then carrying out ultrasonic homogenization treatment on the polypropylene, the active diluent and the copolymerization catalyst, and preserving the mixed solution at constant temperature;
s2, mixing solid-content materials, stirring and mixing zinc powder, polyolefin, metal oxide powder and modified graphene in a solid state after the step S1 is completed, adding the mixed solid mixture into epoxy resin together, and performing ultrasonic mixing and homogenization to obtain a solid-content mixture;
and S3, mixing the materials, adding the mixture prepared in the step S2, the pigment, the curing agent, the adhesion promoter and the film-forming aid into the mixed solution prepared in the step S1, and continuously carrying out ultrasonic homogenization operation at the constant temperature of 60-80 ℃ until the water content in the mixture is not more than 1%.
6. The preparation equipment of the preparation method of the high-solid-content graphene zinc powder heavy anti-corrosion coating according to claim 5 is characterized in that: the preparation equipment comprises a bearing frame, a reaction kettle, a feeding pipe, a flow guide branch pipe, a multi-way valve, a booster pump and a driving circuit, wherein the bearing frame is of a frame structure with the axis vertical to the horizontal plane, the axial section of the bearing frame is of a U-shaped groove-shaped structure, at least two reaction kettles are embedded in the bearing frame and uniformly distributed around the axis of the bearing frame and are in sliding connection with the inner surface of the side wall of the bearing frame, the reaction kettle is provided with two feeding ports, the lower end surface of the reaction kettle is provided with a discharging port, one feeding port of the reaction kettle is communicated with the feeding pipe through the flow guide branch pipe, the discharging port of the reaction kettle is communicated with the multi-way valve through a flow guide pipe, the multi-way valve is communicated with the booster pump through the flow guide pipe, the booster pump is communicated with the lower end surface of the feeding pipe through the flow guide pipe, the feeding pipe is embedded in the bearing frame and coaxially distributed with the bearing frame, the outer side surface of the feeding pipe is connected with the inner side surface of the bearing frame, the driving circuit is connected with the outer side face of the bearing frame and is respectively electrically connected with the reaction kettle, the multi-way valve and the booster pump.
7. A production apparatus according to claim 6, characterized in that: reation kettle be blending tank, sealed lid, ultrasonic oscillation mechanism, temperature sensor, negative-pressure air fan, wherein the blending tank is "U" font structure for axial cross-section, and its up end is connected with sealed lid and constitutes airtight cavity structures, the charge door inlays in sealed lid, and the bin outlet inlays in blending tank bottom, ultrasonic oscillation mechanism is two at least, encircle blending tank axis equipartition and with blending tank lateral wall internal surface connection, temperature sensor inlays in the blending tank and is connected with sealed lid lower terminal surface, negative-pressure air fan is connected with the blending tank outer surface to through air duct and one of them charge door intercommunication, through the three-way valve intercommunication between air duct and charge door, ultrasonic oscillation mechanism, temperature sensor, electrode tip and three-way valve all with drive circuit electrical connection.
8. The manufacturing apparatus according to claim 7, wherein: the ultrasonic oscillation mechanism is connected with the inner surface of the side wall of the mixing tank in a sliding way through a lifting driving mechanism.
9. The manufacturing apparatus according to claim 6, wherein: the feeding pipe comprises a guide pipe body, a sealing head, a negative pressure pump, a conveying pipe, a tray and a lifting driving mechanism, wherein the guide pipe body is of a hollow tubular structure with a rectangular axial section, the side surface of the upper half part of the guide pipe body is provided with a drainage hole and is communicated with a guide branch pipe through the drainage hole, the upper end surface and the lower end surface of the guide pipe body are both connected with the sealing head to form a closed cavity structure, the sealing heads of the lower end surface and the upper end surface of the guide pipe body are both provided with a guide hole which is coaxially distributed with the guide pipe body, the sealing head of the lower end surface of the guide pipe body is communicated with the guide pipe through the guide hole, the guide hole of the sealing head of the upper end surface of the guide pipe body is communicated with the negative pressure pump through the guide pipe, the negative pressure pump is connected with the outer surface of the guide pipe body, the conveying pipe is embedded in the guide pipe body and is coaxially distributed with the guide pipe body and is communicated with the guide hole of the lower end surface of the guide pipe body, the upper end face of the conveying pipe is at least 10 cm higher than the upper end face of the flow guide pipe body, the tray is embedded in the flow guide pipe body, is coaxially distributed with the flow guide pipe body and is wrapped outside the conveying pipe, is respectively in sliding connection with the inner side face of the flow guide pipe body and the outer side face of the conveying pipe, is in sliding connection with the flow guide pipe body through at least two lifting driving mechanisms, is of an H-shaped groove-shaped structure in the axial section, is not more than 50% of the height of the conveying pipe, is located below the drainage holes and is 0-95% of the distance between the drainage holes and the bottom of the flow guide pipe body, and is located at the lowest position, the lower end face of the tray is distributed in parallel and level with the bottom of the flow guide pipe body, and the lifting driving mechanisms and the negative pressure pump are electrically connected with the driving circuit.
10. A production apparatus according to claim 6, characterized in that: the driving circuit is a circuit system based on any one of an FPGA chip and a programmable controller.
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