CN112574644A - Antibacterial coating suitable for pc/pma composite base material and preparation method thereof - Google Patents
Antibacterial coating suitable for pc/pma composite base material and preparation method thereof Download PDFInfo
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- CN112574644A CN112574644A CN202011491388.1A CN202011491388A CN112574644A CN 112574644 A CN112574644 A CN 112574644A CN 202011491388 A CN202011491388 A CN 202011491388A CN 112574644 A CN112574644 A CN 112574644A
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- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/56—Amines together with other curing agents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
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- 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
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2333/12—Homopolymers or copolymers of methyl methacrylate
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- C—CHEMISTRY; METALLURGY
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2433/12—Homopolymers or copolymers of methyl methacrylate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2469/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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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
- C08L2312/00—Crosslinking
- C08L2312/08—Crosslinking by silane
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Abstract
The invention discloses an antibacterial coating suitable for a pc/pmma composite substrate and a preparation method thereof, wherein the antibacterial coating comprises the following components in percentage by mass: active diluent: 20% -30% and silicon micropowder: 10% -15%, curing agent: 10% -15%, silane crosslinking: 2% -4%, isocyanate 1% -1.2%, cosolvent 2% -5% and water 30% -50%, the beneficial effects of the invention are: the wear resistance and impact resistance of the coating can be improved by using the active diluent, the silicon micropowder and the silane for crosslinking, the coating has better antibacterial property, the weakening of the properties of the coating in the preparation of coating powder and the coating stage can be avoided, the compatibility with a polymer base material is improved after the surface of the curing agent is modified, the adhesive force, flexibility, impact strength, smoothness and chemical reagent resistance of a polymer coating can be improved, and the protection effect on a pc/pmma composite base material is improved.
Description
Technical Field
The invention relates to the technical field of antibacterial coatings, in particular to an antibacterial coating suitable for a pc/pma composite substrate and a preparation method thereof.
Background
The PC/PMMA composite board is prepared by co-extruding and compounding PC and PMMA, integrates the high impact strength and the bending resistance of a PC material and the good hardness and the wear resistance of a PMMA material, improves the overall toughness of the material, is high-clear and transparent, has high glossiness and strong printability, can obtain a good effect of the streamer colorful glass through texture preparation, greatly improves the falling resistance after hardening, has no signal shielding, and can perfectly replace glass for a rear cover and a touch window of a mobile phone.
The touch pad is a pressure sensitive device, if the touch pad is not well protected, the touch pad is easily damaged, the fingers of a user are provided with grease or the touch pad is polluted by dust, the fingers scratch the surface of the coating for a long time, and the performance requirement on the coating is high, especially the abrasion performance.
Disclosure of Invention
The invention aims to provide an antibacterial coating suitable for a pc/pmma composite substrate and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the aim, the invention provides the following technical scheme that the antibacterial coating is suitable for the pc/pma composite base material, and the antibacterial coating comprises the following components in percentage by mass: active diluent: 20% -30% and silicon micropowder: 10% -15%, curing agent: 10% -15%, silane crosslinking: 2-4 percent of isocyanate, 1-1.2 percent of cosolvent, 2-5 percent of cosolvent and 30-50 percent of water.
Preferably, the reactive diluent is one or more of propylene oxide propylene ether, butyl glycidyl ether and glycerol epoxy resin.
Preferably, the reactive diluent: silicon micropowder: the ratio of the curing agent is 2:1: 1.
Preferably, the curing agent is prepared from raw material components such as diphenyl methane, butyl acetate, ethylenediamine, p-tert-butyl phenol, n-butyl alcohol condensed water, glycerol ether and the like in proportion.
Preferably, the preparation method of the curing agent comprises the following steps:
s1, weighing and selecting a curing agent from diphenylmethane, butyl acetate, ethylenediamine, p-tert-butylphenol, n-butyl alcohol glycidyl and glycerol ether according to the proportion;
s2, pouring the weighed raw materials into a mixing tank, and fully stirring and mixing the raw materials in the step S1;
and S3, discharging the mixed raw materials from the mixing tank, concentrating at normal temperature, and separating to obtain the curing agent.
Preferably, the reaction time of S2 is 120-150 minutes, and the reaction temperature is 25 ℃.
Preferably, the silicon micropowder needs to be dried and filtered before use, and the pore diameter of the filtering device is 150-200 meshes.
Preferably, the isocyanate is one or more of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine diisocyanate.
A method of making an antimicrobial coating suitable for use on pc/pma composite substrates comprising the steps of:
s1, preparation materials: weighing and selecting the active diluent, the silicon micro powder and the silicon micro powder according to the proportion, and then weighing and selecting the water according to the proportion of the active diluent, the silicon micro powder and the silicon micro powder;
s2, starting and feeding: electrifying all the equipment, starting the equipment, pouring water into the mixing tank, and sequentially adding the weighed active diluent, the silicon micropowder and the silicon micropowder by a worker;
s3, stirring and mixing: after the raw materials are added, adjusting the temperature inside the mixing tank to 30 ℃, driving a stirring shaft to mix the raw materials through a driving motor, and sequentially adding a cosolvent, silane crosslinking and isocyanate by workers according to a ratio in the stirring and mixing process for thirty minutes;
s4, sieving: discharging the mixed antibacterial coating through a discharging pipe, and filtering impurities in the coating by arranging an ultrafiltration membrane at the bottom of the discharging pipe;
s5, subpackaging: the blanking pipe bottom is equipped with the conveyer belt, accomodates antibacterial coating through the partial shipment bucket at conveyer belt top, also makes things convenient for subsequent save and carry in back.
Preferably, the ultrafiltration membrane in S4 is an inorganic membrane or ceramic, and the cutoff pore diameter of the ultrafiltration membrane is 0.002-0.005 μm.
Compared with the prior art, the invention has the beneficial effects that: the wear resistance and impact resistance of the coating can be improved by using the active diluent, the silicon micropowder and the silane for crosslinking, the coating has better antibacterial property, the weakening of the properties of the coating in the preparation of coating powder and the coating stage can be avoided, the compatibility with a polymer base material is improved after the surface of the curing agent is modified, the adhesive force, flexibility, impact strength, smoothness and chemical reagent resistance of a polymer coating can be improved, and the protection effect on a pc/pmma composite base material is improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: an antibacterial coating suitable for a pc/pmma composite substrate comprises the following components in percentage by mass: active diluent: 20% -30% and silicon micropowder: 10% -15%, curing agent: 10% -15%, silane crosslinking: 2-4 percent of isocyanate, 1-1.2 percent of cosolvent, 2-5 percent of cosolvent and 30-50 percent of water.
Wherein the reactive diluent is one or more of propylene oxide propylene ether, butyl glycidyl ether and glycerol epoxy resin.
Wherein the reactive diluent is: silicon micropowder: the ratio of the curing agent is 2:1: 1.
Wherein the curing agent is prepared from raw materials such as diphenyl methane, butyl acetate, ethylenediamine, p-tert-butylphenol, n-butyl alcohol condensed water, glycerol ether and the like in proportion.
The preparation method of the curing agent comprises the following steps:
s1, weighing and selecting a curing agent from diphenylmethane, butyl acetate, ethylenediamine, p-tert-butylphenol, n-butyl alcohol glycidyl and glycerol ether according to the proportion;
s2, pouring the weighed raw materials into a mixing tank, and fully stirring and mixing the raw materials in the step S1;
and S3, discharging the mixed raw materials from the mixing tank, concentrating at normal temperature, and separating to obtain the curing agent.
Wherein the reaction time of S2 is 120-150 minutes, and the reaction temperature is 25 ℃.
Wherein, the silicon micro powder needs to be dried and filtered before use, and the aperture of the filtering device is 150-200 meshes.
Wherein the isocyanate is one or more of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine diisocyanate.
The method comprises the following steps:
s1, preparation materials: weighing and selecting the active diluent, the silicon micro powder and the silicon micro powder according to the proportion, and then weighing and selecting the water according to the proportion of the active diluent, the silicon micro powder and the silicon micro powder;
s2, starting and feeding: electrifying all the equipment, starting the equipment, pouring water into the mixing tank, and sequentially adding the weighed active diluent, the silicon micropowder and the silicon micropowder by a worker;
s3, stirring and mixing: after the raw materials are added, adjusting the temperature inside the mixing tank to 30 ℃, driving a stirring shaft to mix the raw materials through a driving motor, and sequentially adding a cosolvent, silane crosslinking and isocyanate by workers according to a ratio in the stirring and mixing process for thirty minutes;
s4, sieving: discharging the mixed antibacterial coating through a discharging pipe, and filtering impurities in the coating by arranging an ultrafiltration membrane at the bottom of the discharging pipe;
s5, subpackaging: the blanking pipe bottom is equipped with the conveyer belt, accomodates antibacterial coating through the partial shipment bucket at conveyer belt top, also makes things convenient for subsequent save and carry in back.
Wherein the ultrafiltration membrane in the S4 is an inorganic membrane or ceramic, and the interception pore diameter of the ultrafiltration membrane is 0.002-0.005 μm.
Example 1 an antimicrobial coating suitable for pc/pmma composite substrates, comprising the following components in mass percent: .
A method of making an antimicrobial coating suitable for use on pc/pma composite substrates comprising the steps of:
s1, preparation materials: weighing and selecting the active diluent, the silicon micro powder and the silicon micro powder according to the proportion, and then weighing and selecting the water according to the proportion of the active diluent, the silicon micro powder and the silicon micro powder;
s2, starting and feeding: electrifying all the equipment, starting the equipment, pouring water into the mixing tank, and sequentially adding the weighed active diluent, the silicon micropowder and the silicon micropowder by a worker;
s3, stirring and mixing: after the raw materials are added, adjusting the temperature inside the mixing tank to 30 ℃, driving a stirring shaft to mix the raw materials through a driving motor, and sequentially adding a cosolvent, silane crosslinking and isocyanate by workers according to a ratio in the stirring and mixing process for thirty minutes;
s4, sieving: discharging the mixed antibacterial coating through a discharging pipe, and filtering impurities in the coating by arranging an ultrafiltration membrane at the bottom of the discharging pipe;
s5, subpackaging: the blanking pipe bottom is equipped with the conveyer belt, accomodates antibacterial coating through the partial shipment bucket at conveyer belt top, also makes things convenient for subsequent save and carry in back.
Example 2, an antimicrobial coating suitable for pc/pmma composite substrates, comprising the following components in mass percent: .
A method of making an antimicrobial coating suitable for use on pc/pma composite substrates comprising the steps of:
s1, preparation materials: weighing and selecting the active diluent, the silicon micro powder and the silicon micro powder according to the proportion, and then weighing and selecting the water according to the proportion of the active diluent, the silicon micro powder and the silicon micro powder;
s2, starting and feeding: electrifying all the equipment, starting the equipment, pouring water into the mixing tank, and sequentially adding the weighed active diluent, the silicon micropowder and the silicon micropowder by a worker;
s3, stirring and mixing: after the raw materials are added, adjusting the temperature inside the mixing tank to 30 ℃, driving a stirring shaft to mix the raw materials through a driving motor, and sequentially adding a cosolvent, silane crosslinking and isocyanate by workers according to a ratio in the stirring and mixing process for thirty minutes;
s4, sieving: discharging the mixed antibacterial coating through a discharging pipe, and filtering impurities in the coating by arranging an ultrafiltration membrane at the bottom of the discharging pipe;
s5, subpackaging: the blanking pipe bottom is equipped with the conveyer belt, accomodates antibacterial coating through the partial shipment bucket at conveyer belt top, also makes things convenient for subsequent save and carry in back.
Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An antibacterial coating suitable for a pc/pmma composite substrate is characterized by comprising the following components in percentage by mass: active diluent: 20% -30% and silicon micropowder: 10% -15%, curing agent: 10% -15%, silane crosslinking: 2-4 percent of isocyanate, 1-1.2 percent of cosolvent, 2-5 percent of cosolvent and 30-50 percent of water.
2. An antimicrobial coating suitable for use on pc/pmma composite substrates in accordance with claim 1, wherein: the reactive diluent is one or more of propylene oxide propylene ether, butyl glycidyl ether and glycerol epoxy resin.
3. An antimicrobial coating suitable for use on pc/pmma composite substrates in accordance with claim 1, wherein: the active diluent is: silicon micropowder: the ratio of the curing agent is 2:1: 1.
4. An antimicrobial coating suitable for use on pc/pmma composite substrates in accordance with claim 1, wherein: the curing agent is prepared from raw materials such as diphenyl methane, butyl acetate, ethylenediamine, p-tert-butylphenol, n-butyl alcohol condensed water, glycerol ether and the like in proportion.
5. An antimicrobial coating suitable for use on pc/pmma composite substrates in accordance with claim 1, wherein: the preparation method of the curing agent comprises the following steps:
s1, weighing and selecting a curing agent from diphenylmethane, butyl acetate, ethylenediamine, p-tert-butylphenol, n-butyl alcohol glycidyl and glycerol ether according to the proportion;
s2, pouring the weighed raw materials into a mixing tank, and fully stirring and mixing the raw materials in the step S1;
and S3, discharging the mixed raw materials from the mixing tank, concentrating at normal temperature, and separating to obtain the curing agent.
6. An antimicrobial coating suitable for use on pc/pmma composite substrates in accordance with claim 5, wherein: the reaction time of S2 was 120-150 minutes, and the reaction temperature was 25 ℃.
7. An antimicrobial coating suitable for use on pc/pmma composite substrates in accordance with claim 1, wherein: the silicon micro powder needs to be dried and filtered before use, and the aperture of the filtering device is 150-200 meshes.
8. An antimicrobial coating suitable for use on pc/pmma composite substrates in accordance with claim 1, wherein: the isocyanate is one or more of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine diisocyanate.
9. A preparation method of an antibacterial coating suitable for a pc/pmma composite substrate is characterized by comprising the following steps: the method comprises the following steps:
s1, preparation materials: weighing and selecting the active diluent, the silicon micro powder and the silicon micro powder according to the proportion, and then weighing and selecting the water according to the proportion of the active diluent, the silicon micro powder and the silicon micro powder;
s2, starting and feeding: electrifying all the equipment, starting the equipment, pouring water into the mixing tank, and sequentially adding the weighed active diluent, the silicon micropowder and the silicon micropowder by a worker;
s3, stirring and mixing: after the raw materials are added, adjusting the temperature inside the mixing tank to 30 ℃, driving a stirring shaft to mix the raw materials through a driving motor, and sequentially adding a cosolvent, silane crosslinking and isocyanate by workers according to a ratio in the stirring and mixing process for thirty minutes;
s4, sieving: discharging the mixed antibacterial coating through a discharging pipe, and filtering impurities in the coating by arranging an ultrafiltration membrane at the bottom of the discharging pipe;
s5, subpackaging: the blanking pipe bottom is equipped with the conveyer belt, accomodates antibacterial coating through the partial shipment bucket at conveyer belt top, also makes things convenient for subsequent save and carry in back.
10. An antimicrobial coating suitable for use on pc/pmma composite substrates according to claim 9, wherein: the ultrafiltration membrane in the S4 is an inorganic membrane or ceramic, and the interception pore diameter of the ultrafiltration membrane is 0.002-0.005 μm.
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2020
- 2020-12-17 CN CN202011491388.1A patent/CN112574644A/en active Pending
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