CN112980083A - Preparation method and preparation device of graphene antibacterial reinforced plastic - Google Patents

Preparation method and preparation device of graphene antibacterial reinforced plastic Download PDF

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Publication number
CN112980083A
CN112980083A CN202110332536.3A CN202110332536A CN112980083A CN 112980083 A CN112980083 A CN 112980083A CN 202110332536 A CN202110332536 A CN 202110332536A CN 112980083 A CN112980083 A CN 112980083A
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preparation
graphene
plastic
reinforced plastic
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吴卫东
于咏良
于书经
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Jixi Hanyu Graphene Technology Co Ltd
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Jixi Hanyu Graphene Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/02Making granules by dividing preformed material
    • B29B9/06Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/12Making granules characterised by structure or composition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/04Antistatic

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  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
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Abstract

The invention discloses a preparation method and a preparation device of graphene bacteriostatic reinforced plastic, wherein the preparation method comprises the following steps: preparing raw materials, pretreating the raw materials, preparing a mixture, preparing plastic master batches and forming reinforced plastics; according to the invention, the corrosion resistance and thermoplasticity of the plastic are improved by adding the mixed resin particles prepared from the polyethylene particles and the polypropylene particles, so that the service life is prolonged, the dendritic polyamidoamine has a large number of end group groups, can be subjected to different functional modification and modification, and can well become a carrier of graphene, the plastic has good antistatic and flame retardant functions by adding the antistatic agent and the flame retardant, the thermal conductivity, mechanical strength, bacteriostasis and antibacterial property of the plastic are improved by adding the graphene powder, the plastic is not easy to breed bacteria in the subsequent use, and meanwhile, the graphene powder is pre-dispersed, so that the graphene powder has better dispersibility in the preparation process, and the comprehensive performance of the plastic is further improved.

Description

Preparation method and preparation device of graphene antibacterial reinforced plastic
Technical Field
The invention relates to the technical field of plastic production and processing, in particular to a preparation method and a preparation device of graphene antibacterial reinforced plastic.
Background
Plastics are high molecular compounds which are polymerized by addition polymerization or polycondensation reaction by using monomers as raw materials, the deformation resistance of the high molecular compounds is moderate and is between fibers and rubber, the main component of the plastics is resin which comprises synthetic resin and additives such as filler, plasticizer, stabilizer, lubricant, pigment and the like, the resin is a high molecular compound which is not mixed with various additives, the resin is originally named as lipid secreted by animals and plants, such as rosin, shellac and the like, the resin accounts for about 40-100% of the total weight of the plastics, the basic performance of the plastics is mainly determined by the nature of the resin, but the additives also play an important role;
along with the development of industry, the requirements of people on plastic products are higher and higher, the traditional plastic can not meet the performance requirements of the plastic products gradually, most of the existing reinforced plastics are single in variety, the improvement on the performance of the plastic is limited, the existing reinforced plastics do not have good antibacterial and antibacterial functions, and the existing reinforced plastics also cannot have good heat-conducting performance, so that the application range of the plastic is limited.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a preparation method and a preparation device of graphene antibacterial reinforced plastic.
In order to achieve the purpose of the invention, the invention is realized by the following technical scheme: a preparation method of graphene bacteriostatic reinforced plastic comprises the following steps:
the method comprises the following steps: raw material preparation
Weighing the following raw materials in parts by weight: 10-20 parts of graphene powder, 100-120 parts of mixed resin particles, 5-10 parts of dendritic polyamidoamine, 3-6 parts of antistatic agent, 5-10 parts of coupling agent, 5-9 parts of flame retardant, 7-12 parts of paraffin oil, 5-10 parts of xylene and 50-60 parts of ethanol solution, wherein the mixed resin particles are prepared by mixing polyethylene particles and polypropylene particles according to the weight ratio of 1:1, and the coupling agent is a chromium complex coupling agent;
step two: pretreatment of raw materials
According to the first step, firstly, adding a coupling agent and an ethanol solution in specified weight parts into a reaction kettle for hydrolysis, then adding graphene powder and dimethylbenzene in specified weight parts into the reaction kettle for mixing and stirring, and after stirring is completed, putting the mixed solution into a drying box for heating and drying to obtain pre-dispersed graphene;
step three: preparation of the mixture
Adding the paraffin oil, the dendritic polyamidoamine, the flame retardant and the mixed resin particles in the specified weight parts into a high-speed stirrer, mixing and stirring, adding the antistatic agent and the pre-dispersed graphene in the specified weight parts into the high-speed stirrer, continuously mixing and stirring, putting the mixture into a vacuum drying oven for heating and drying after stirring, and introducing the mixture into a storage bucket for temporary storage after drying;
step four: preparation of plastic masterbatch
According to the third step, firstly, the mixture is melted and extruded by a double-screw extruder, then the extruded material is put into a cooling water tank for cooling, then the cooled extruded material is dried by a hot air blower, and then the extruded material is processed into plastic master batches by a granulator and is put into a storage box for temporary storage;
step five: shaping of reinforced plastics
According to the fourth step, the corresponding injection mold is installed on the injection molding machine according to production needs, then the plastic master batches are subjected to injection molding through the injection molding machine, graphene antibacterial reinforced plastic is prepared after cooling, then the graphene antibacterial reinforced plastic is inspected through performance detection equipment, and the graphene antibacterial reinforced plastic is boxed through packaging equipment after being inspected to be qualified.
The further improvement lies in that: in the first step, the raw materials are weighed according to the following parts by weight by a weighing scale: 10 parts of graphene powder, 100 parts of mixed resin particles, 3 parts of antistatic agent, 5 parts of coupling agent, 5 parts of flame retardant, 7 parts of paraffin oil, 5 parts of xylene and 50 parts of ethanol solution.
The further improvement lies in that: in the first step, the raw materials are weighed according to the following parts by weight by a weighing scale: 20 parts of graphene powder, 120 parts of mixed resin particles, 6 parts of an antistatic agent, 10 parts of a coupling agent, 9 parts of a flame retardant, 12 parts of paraffin oil, 10 parts of xylene and 60 parts of an ethanol solution.
The further improvement lies in that: in the second step, the mixing and stirring time of the reaction kettle is 30 minutes, the heating temperature of the reaction kettle is 30 ℃, after the mixing is finished, reduced pressure distillation is firstly carried out, then the mixture is put into a drying box, and the heating temperature of the drying box is set to be 90 ℃.
The further improvement lies in that: in the third step, the paraffin oil and the mixed resin particles are added into a high-speed stirrer and then stirred for 10 minutes, the pre-dispersed graphene is added into a high-speed stirrer and then stirred for 30 minutes, and the heating temperature in the vacuum drying oven is 90 ℃.
The further improvement lies in that: in the fourth step, the heating temperature of the double-screw extruder is set to be 180 ℃ during the extrusion of the mixture, and the screw rotating speed of the double-screw extruder is set to be 150 r/min.
The utility model provides a preparation facilities of antibiotic reinforced plastics of graphite alkene, includes raw material processing apparatus, mixture preparation facilities, master batch preparation facilities and plastics forming device, raw material processing apparatus includes reation kettle and stoving case, mixture preparation facilities includes high speed mixer, vacuum drying case and storage vat, master batch preparation facilities includes twin-screw extruder, cooling water tank, air heater, granulator and storage case, plastics forming device includes injection molding machine, performance check out test set and equipment for packing.
The invention has the beneficial effects that: the invention improves the corrosion resistance and thermoplasticity of the plastic by adding the mixed resin particles made of polyethylene particles and polypropylene particles in the preparation process, thereby prolonging the service life, the dendritic polyamidoamine has a large number of end groups and can be modified and modified with different functionalities to well become a carrier of graphene, the plastic has good antistatic and flame retardant functions by adding the antistatic agent and the flame retardant, the thermal conductivity, mechanical strength, bacteriostasis and antibacterial property of the plastic are improved by adding the graphene powder, the plastic is not easy to breed bacteria in the subsequent use, meanwhile, the graphene powder is pre-dispersed, the dispersibility of the graphene powder in the preparation process is better, the comprehensive performance of the plastic is further improved, the application range of the plastic is wider, and the preparation method is simple and easy to operate, and the process is scientific and rigorous, the preparation cost is not high, and the method is worthy of wide popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of a preparation method of the present invention;
FIG. 2 is a schematic view of the structure of a manufacturing apparatus of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1, the embodiment provides a preparation method of a graphene bacteriostatic reinforced plastic, which includes the following steps:
the method comprises the following steps: raw material preparation
Weighing the following raw materials in parts by weight: the flame retardant is prepared from the following raw materials, by weight, 10 parts of graphene powder, 100 parts of mixed resin particles, 5 parts of dendritic polyamidoamine, 3 parts of an antistatic agent, 5 parts of a coupling agent, 5 parts of a flame retardant, 7 parts of paraffin oil, 5 parts of xylene and 50 parts of an ethanol solution, wherein the mixed resin particles are prepared by mixing polyethylene particles and polypropylene particles according to a weight ratio of 1:1, and the coupling agent is a chromium complex coupling agent;
step two: pretreatment of raw materials
According to the first step, firstly, adding a coupling agent and an ethanol solution in specified weight parts into a reaction kettle for hydrolysis, then adding graphene powder and dimethylbenzene in specified weight parts into the reaction kettle for mixing and stirring, after stirring is finished, putting a mixed solution into a drying box for heating and drying to obtain pre-dispersed graphene, wherein the mixing and stirring time of the reaction kettle is 30 minutes, the heating temperature of the reaction kettle is 30 ℃, after mixing is finished, reduced pressure distillation is firstly carried out, then the mixed solution is put into a drying box, and the heating temperature of the drying box is set to 90 ℃;
step three: preparation of the mixture
Adding the paraffin oil, the dendritic polyamidoamine, the flame retardant and the mixed resin particles in the specified weight parts into a high-speed stirrer, mixing and stirring, adding the antistatic agent and the pre-dispersed graphene in the specified weight parts into the high-speed stirrer, continuously mixing and stirring, putting the mixture into a vacuum drying oven for heating and drying after stirring, guiding the mixture into a storage bucket for temporary storage after drying, adding the paraffin oil and the mixed resin particles into the high-speed stirrer, stirring for 10 minutes, adding the pre-dispersed graphene into the high-speed stirrer, stirring for 30 minutes, and heating at 90 ℃ in the vacuum drying oven;
step four: preparation of plastic masterbatch
According to the third step, firstly, melting and extruding the mixture through a double-screw extruder, then, putting the extruded material into a cooling water tank for cooling, then, drying the cooled extruded material through a hot air blower, then, processing the extruded material into plastic master batches through a granulator, and putting the plastic master batches into a storage box for temporary storage, wherein the heating temperature of the double-screw extruder is set to 180 ℃ during extrusion of the mixture, and the screw rotating speed of the double-screw extruder is set to 150 r/min;
step five: shaping of reinforced plastics
According to the fourth step, the corresponding injection mold is installed on the injection molding machine according to production needs, then the plastic master batches are subjected to injection molding through the injection molding machine, graphene antibacterial reinforced plastic is prepared after cooling, then the graphene antibacterial reinforced plastic is inspected through performance detection equipment, and the graphene antibacterial reinforced plastic is boxed through packaging equipment after being inspected to be qualified.
Referring to fig. 2, the embodiment provides a preparation device of graphene antibacterial reinforced plastic, which comprises a raw material processing device, a mixture preparation device, a master batch preparation device and a plastic forming device, wherein the raw material processing device comprises a reaction kettle and a drying box, the mixture preparation device comprises a high-speed stirrer, a vacuum drying box and a storage barrel, the master batch preparation device comprises a double-screw extruder, a cooling water tank, a hot air blower, a granulator and a storage box, and the plastic forming device comprises an injection molding machine, a performance detection device and a packaging device.
Example two
Referring to fig. 1, the embodiment provides a preparation method of a graphene bacteriostatic reinforced plastic, which includes the following steps:
the method comprises the following steps: raw material preparation
Weighing the following raw materials in parts by weight: 20 parts of graphene powder, 120 parts of mixed resin particles, 10 parts of dendritic polyamidoamine, 6 parts of an antistatic agent, 10 parts of a coupling agent, 9 parts of a flame retardant, 12 parts of paraffin oil, 10 parts of xylene and 60 parts of an ethanol solution, wherein the mixed resin particles are prepared by mixing polyethylene particles and polypropylene particles according to a weight ratio of 1:1, and the coupling agent is a chromium complex coupling agent;
step two: pretreatment of raw materials
According to the first step, firstly, adding a coupling agent and an ethanol solution in specified weight parts into a reaction kettle for hydrolysis, then adding graphene powder and dimethylbenzene in specified weight parts into the reaction kettle for mixing and stirring, after stirring is finished, putting a mixed solution into a drying box for heating and drying to obtain pre-dispersed graphene, wherein the mixing and stirring time of the reaction kettle is 30 minutes, the heating temperature of the reaction kettle is 30 ℃, after mixing is finished, reduced pressure distillation is firstly carried out, then the mixed solution is put into a drying box, and the heating temperature of the drying box is set to 90 ℃;
step three: preparation of the mixture
Adding the paraffin oil, the dendritic polyamidoamine, the flame retardant and the mixed resin particles in the specified weight parts into a high-speed stirrer, mixing and stirring, adding the antistatic agent and the pre-dispersed graphene in the specified weight parts into the high-speed stirrer, continuously mixing and stirring, putting the mixture into a vacuum drying oven for heating and drying after stirring, guiding the mixture into a storage bucket for temporary storage after drying, adding the paraffin oil and the mixed resin particles into the high-speed stirrer, stirring for 10 minutes, adding the pre-dispersed graphene into the high-speed stirrer, stirring for 30 minutes, and heating at 90 ℃ in the vacuum drying oven;
step four: preparation of plastic masterbatch
According to the third step, firstly, melting and extruding the mixture through a double-screw extruder, then, putting the extruded material into a cooling water tank for cooling, then, drying the cooled extruded material through a hot air blower, then, processing the extruded material into plastic master batches through a granulator, and putting the plastic master batches into a storage box for temporary storage, wherein the heating temperature of the double-screw extruder is set to 180 ℃ during extrusion of the mixture, and the screw rotating speed of the double-screw extruder is set to 150 r/min;
step five: shaping of reinforced plastics
According to the fourth step, the corresponding injection mold is installed on the injection molding machine according to production needs, then the plastic master batches are subjected to injection molding through the injection molding machine, graphene antibacterial reinforced plastic is prepared after cooling, then the graphene antibacterial reinforced plastic is inspected through performance detection equipment, and the graphene antibacterial reinforced plastic is boxed through packaging equipment after being inspected to be qualified.
Referring to fig. 2, the embodiment provides a preparation device of graphene antibacterial reinforced plastic, which comprises a raw material processing device, a mixture preparation device, a master batch preparation device and a plastic forming device, wherein the raw material processing device comprises a reaction kettle and a drying box, the mixture preparation device comprises a high-speed stirrer, a vacuum drying box and a storage barrel, the master batch preparation device comprises a double-screw extruder, a cooling water tank, a hot air blower, a granulator and a storage box, and the plastic forming device comprises an injection molding machine, a performance detection device and a packaging device.
The dendritic polyamidoamine in the graphene antibacterial reinforced plastic has the effects of increasing dispersibility, increasing solubility, improving the dissolution amount of effective components, reducing mixing requirements by reducing viscosity, improving fluidity and wettability, and increasing interaction with the surfaces of various materials because the outer layer reaction group of dendritic molecules can provide polyions;
the dendritic polyamidoamine has a large number of end groups, can be subjected to different functional modification, can be well used as a carrier of graphene, can be used as a high-degree dispersing agent and a stabilizing agent, and is used for synthesizing nanoparticles;
in addition, the molecular chain of the dendritic polyamidoamine dendrimer contains a large amount of-NH 2 and-CONH-polar groups, so that the dendrimer has good water solubility, and a large amount of terminal groups of the dendrimer are easy to perform functional modification, such as low viscosity, high double-bond functionality and high reaction speed of a hyperbranched polymer of which the terminal group contains a double-bond group;
cavities and a large number of surface functional groups exist in a highly branched molecular structure in the dendritic polyamidoamine, so that the dendritic polyamidoamine is not easy to crystallize and easy to form a film, has low melt viscosity and solution viscosity and incomparable nanometer characteristics, and also has excellent dissolving and dispersing properties;
the dendritic polymer added in the preparation process has the structural characteristics and excellent characteristics that the center has a core, the interior has a cavity, a large number of branching units are arranged, modifiable functional groups are uniformly distributed on the surface, the volume, the shape, the functional groups and the molecular weight can be accurately controlled at the molecular level, the dendritic polymer is highly branched, has a regular and delicate perfect structure, is spherical at a high generation number, and has a nano-scale size as a raw material, good solubility and low viscosity.
Relevant performance tests are carried out on the graphene bacteriostatic reinforced plastics obtained in each embodiment, and the test results are shown in table 1.
Table 1 results of performance testing
Figure 752590DEST_PATH_IMAGE001
The preparation method of the graphene antibacterial reinforced plastic improves the corrosion resistance and the thermoplasticity of the plastic by adding the mixed resin particles made of polyethylene particles and polypropylene particles in the preparation process, thereby prolonging the service life, the dendritic polyamidoamine has a large number of end groups and can be modified and modified with different functionalities to well become a carrier of graphene, the plastic has good antistatic and flame retardant functions by adding the antistatic agent and the flame retardant, the thermal conductivity, the mechanical strength, the bacteriostasis and the antibacterial property of the plastic are improved by adding the graphene powder, the plastic is not easy to breed bacteria in the subsequent use, meanwhile, the graphene powder is pre-dispersed, so that the dispersibility of the graphene powder in the preparation process is better, the comprehensive performance of the plastic is further improved, the application range of the plastic is wider, and the preparation method is simple and easy to operate, the process is scientific and precise, the preparation cost is not high, and the method is worthy of wide popularization and application.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. A preparation method of graphene bacteriostatic reinforced plastic is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: raw material preparation
Weighing the following raw materials in parts by weight: 10-20 parts of graphene powder, 100-120 parts of mixed resin particles, 5-10 parts of dendritic polyamidoamine, 3-6 parts of antistatic agent, 5-10 parts of coupling agent, 5-9 parts of flame retardant, 7-12 parts of paraffin oil, 5-10 parts of xylene and 50-60 parts of ethanol solution, wherein the mixed resin particles are prepared by mixing polyethylene particles and polypropylene particles according to the weight ratio of 1:1, and the coupling agent is a chromium complex coupling agent;
step two: pretreatment of raw materials
According to the first step, firstly, adding a coupling agent and an ethanol solution in specified weight parts into a reaction kettle for hydrolysis, then adding graphene powder and dimethylbenzene in specified weight parts into the reaction kettle for mixing and stirring, and after stirring is completed, putting the mixed solution into a drying box for heating and drying to obtain pre-dispersed graphene;
step three: preparation of the mixture
Adding the paraffin oil, the dendritic polyamidoamine, the flame retardant and the mixed resin particles in the specified weight parts into a high-speed stirrer, mixing and stirring, adding the antistatic agent and the pre-dispersed graphene in the specified weight parts into the high-speed stirrer, continuously mixing and stirring, putting the mixture into a vacuum drying oven for heating and drying after stirring, and introducing the mixture into a storage bucket for temporary storage after drying;
step four: preparation of plastic masterbatch
According to the third step, firstly, the mixture is melted and extruded by a double-screw extruder, then the extruded material is put into a cooling water tank for cooling, then the cooled extruded material is dried by a hot air blower, and then the extruded material is processed into plastic master batches by a granulator and is put into a storage box for temporary storage;
step five: shaping of reinforced plastics
According to the fourth step, the corresponding injection mold is installed on the injection molding machine according to production needs, then the plastic master batches are subjected to injection molding through the injection molding machine, graphene antibacterial reinforced plastic is prepared after cooling, then the graphene antibacterial reinforced plastic is inspected through performance detection equipment, and the graphene antibacterial reinforced plastic is boxed through packaging equipment after being inspected to be qualified.
2. The preparation method of the graphene bacteriostatic reinforced plastic according to claim 1, which is characterized by comprising the following steps: in the first step, the raw materials are weighed according to the following parts by weight by a weighing scale: 10 parts of graphene powder, 100 parts of mixed resin particles, 5 parts of dendritic polyamidoamine, 3 parts of antistatic agent, 5 parts of coupling agent, 5 parts of flame retardant, 7 parts of paraffin oil, 5 parts of dimethylbenzene and 50 parts of ethanol solution.
3. The preparation method of the graphene bacteriostatic reinforced plastic according to claim 1, which is characterized by comprising the following steps: in the first step, the raw materials are weighed according to the following parts by weight by a weighing scale: 20 parts of graphene powder, 120 parts of mixed resin particles, 10 parts of dendritic polyamidoamine, 6 parts of antistatic agent, 10 parts of coupling agent, 9 parts of flame retardant, 12 parts of paraffin oil, 10 parts of dimethylbenzene and 60 parts of ethanol solution.
4. The preparation method of the graphene bacteriostatic reinforced plastic according to claim 1, which is characterized by comprising the following steps: in the second step, the mixing and stirring time of the reaction kettle is 30 minutes, the heating temperature of the reaction kettle is 30 ℃, after the mixing is finished, reduced pressure distillation is firstly carried out, then the mixture is put into a drying box, and the heating temperature of the drying box is set to be 90 ℃.
5. The preparation method of the graphene bacteriostatic reinforced plastic according to claim 1, which is characterized by comprising the following steps: in the third step, the paraffin oil and the mixed resin particles are added into a high-speed stirrer and then stirred for 10 minutes, the pre-dispersed graphene is added into a high-speed stirrer and then stirred for 30 minutes, and the heating temperature in the vacuum drying oven is 90 ℃.
6. The preparation method of the graphene bacteriostatic reinforced plastic according to claim 1, which is characterized by comprising the following steps: in the fourth step, the heating temperature of the double-screw extruder is set to be 180 ℃ during the extrusion of the mixture, and the screw rotating speed of the double-screw extruder is set to be 150 r/min.
7. The utility model provides a preparation facilities of antibacterial reinforced plastics of graphite alkene, includes raw materials processing apparatus, mixture preparation facilities, master batch preparation facilities and plastic forming device, its characterized in that: the raw material processing device comprises a reaction kettle and a drying box, the mixture preparation device comprises a high-speed stirrer, a vacuum drying box and a storage barrel, the master batch preparation device comprises a double-screw extruder, a cooling water tank, a hot air blower, a granulator and a storage box, and the plastic forming device comprises an injection molding machine, performance detection equipment and packaging equipment.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114525039A (en) * 2022-03-15 2022-05-24 金美菊 Graphene modified resin and preparation method thereof

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