CN111944229A - High-strength antibacterial EVA plastic particle prepared from waste leftover materials and preparation method thereof - Google Patents
High-strength antibacterial EVA plastic particle prepared from waste leftover materials and preparation method thereof Download PDFInfo
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- CN111944229A CN111944229A CN202010845758.0A CN202010845758A CN111944229A CN 111944229 A CN111944229 A CN 111944229A CN 202010845758 A CN202010845758 A CN 202010845758A CN 111944229 A CN111944229 A CN 111944229A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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Abstract
The invention discloses a high-strength antibacterial EVA plastic particle prepared from waste leftover materials, which consists of the following components in part by weight: the EVA plastic particle comprises EVA rubber particles, EVA waste, PE wax, pigment, a lubricant, cerium oxide, a curing agent, calcium oxide powder and sulfonated chitosan, wherein the EVA plastic particle comprises the following components in parts by weight: 5-15 parts of EVA (ethylene vinyl acetate) colloidal particles, 20-35 parts of EVA waste, 7-16 parts of PE (polyethylene) wax, 0-20 parts of pigment, 3-7 parts of lubricant, 3-8 parts of cerium oxide, 3-11 parts of curing agent, 3-7 parts of calcium oxide powder and 1-3 parts of sulfonated chitosan, wherein the lubricant is added to increase the flexibility in preparation, facilitate normal feeding and discharging of the EVA colloidal particles and improve the flow guide effect, and the cerium oxide improves the smoothness, so that the surface smoothness and hardness of the EVA colloidal particles are further ensured under the matched use of the curing agent, the calcium oxide powder is added to improve the hardness after molding, and the sulfonated chitosan improves the antioxidant effect, thereby improving the antibacterial effect and preventing the oxidative corrosion of external bacteria on the sulfonated chitosan.
Description
Technical Field
The invention relates to the technical field of EVA plastic particles, in particular to a high-strength antibacterial EVA plastic particle prepared by utilizing waste leftover materials and a preparation method thereof.
Background
With the development of society, plastic products are indispensable parts in people's life and are commonly used in the fields of shoes, non-slip mats, tires and the like in life, so that the application fields of the plastic products are very wide, the plastic is widely applied and has the characteristics of elasticity, strength and slip resistance, and plastic particles need to be stirred, refined and extruded to form in the preparation process;
however, the strength and the antibacterial property of the high-strength antibacterial EVA plastic particles prepared from waste leftover materials in the current market after molding cannot meet the requirements, so that the phenomena of low utilization rate and few users are caused.
Disclosure of Invention
The invention provides high-strength antibacterial EVA plastic granules prepared from waste leftover materials and a preparation method thereof, which can effectively solve the problems that the strength and antibacterial property of the high-strength antibacterial EVA plastic granules prepared from the waste leftover materials in the current market after molding cannot meet the requirements, the utilization rate is low, and the number of users is small.
In order to achieve the purpose, the invention provides the following technical scheme: the high-strength antibacterial EVA plastic particle prepared from the waste leftover materials comprises the following components: EVA colloidal particles, EVA waste, PE wax, pigment, lubricant, cerium oxide, curing agent, calcium oxide powder and sulfonated chitosan;
the EVA plastic particle consists of the following components in percentage by weight: 5-15 parts of EVA (ethylene vinyl acetate) colloidal particles, 20-35 parts of EVA waste, 7-16 parts of PE (polyethylene) wax, 0-20 parts of pigment, 3-7 parts of lubricant, 3-8 parts of cerium oxide, 3-11 parts of curing agent, 3-7 parts of calcium oxide powder and 1-3 parts of sulfonated chitosan.
According to the technical scheme, the EVA plastic particle comprises the following components in parts by weight: 7 parts of EVA (ethylene-vinyl acetate copolymer) colloidal particles, 30 parts of EVA waste, 11 parts of PE (polyethylene) wax, 3 parts of pigment, 4 parts of lubricant, 5 parts of cerium oxide, 7 parts of curing agent, 6 parts of calcium oxide powder and 2 parts of sulfonated chitosan.
According to the technical scheme, the pigment is formed by matching one or more of three primary colors.
According to the technical scheme, the surface of the EVA waste material does not contain other materials except the material.
According to the technical scheme, the preparation method of the composite material also comprises the following steps:
s1, sorting the EVA waste, removing surface impurities, and crushing in a crusher;
and S2, proportioning after crushing, and banburying the EVA rubber particles, the pigment, the lubricant and the cerium oxide together.
S3, after banburying is completed, grinding for the first time, and normally discharging;
s4, introducing the discharged raw materials into an internal mixing furnace again, and adding PE wax, a curing agent, calcium oxide powder and sulfonated chitosan for secondary internal mixing;
and S5, cooling and forming after banburying is qualified, and detecting and recording.
According to the technical scheme, the EVA waste in the S1 is crushed and then screened by a screen, and the screen mesh number is 1000-1200 meshes.
According to the technical scheme, the banburying temperature in the S2 is 80-90 ℃;
and in the S3, grinding is carried out by a grinding machine, the temperature is 70-110 ℃, and the grinding machine adopts a three-roll grinding machine.
According to the technical scheme, the banburying temperature in the S4 is 90-112 ℃;
and in the step S5, cooling to room temperature by water cooling.
According to the technical scheme, in the step S5, the internal-mixed finished product is detected, and the detection items are color difference, hardness and antibacterial property.
According to the technical scheme, an extruder is adopted for extruding in the steps S1-S5.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. the flexibility in preparation is improved by adding the lubricant, normal feeding and discharging of the lubricant are facilitated, the flow guide effect is improved, the smoothness of the cerium oxide is improved, the surface smoothness and hardness of the cerium oxide are further guaranteed under the cooperation of the curing agent, the hardness after forming is improved by adding the calcium oxide powder, the antioxidant effect is improved by sulfonated chitosan, the antibacterial effect is improved, and the oxidative corrosion of external bacteria to the cerium oxide sulfonated chitosan is prevented.
2. Through connecting rod, motor, stand, the lantern ring, connecting strip, spliced pole, stirring post, hinge dragon and filtration disc, can stir the material that enters into the extruder inside, reduced the stirring degree of difficulty that enters into the inside material of extruder, and then make the material that enters into the extruder inside more even, inside utilizing the inside material of feeder hopper that the hinge dragon can be convenient for to enter into the extruder simultaneously, reduced the degree of difficulty that the material enters into the extruder inside.
3. Through basin, division board, filter screen, water pump, connecting pipe and attach fitting, the inside rivers of basin of can being convenient for flow for the speed of flow of the inside water of basin, thereby accelerated the cooling of the inside water of basin, reduced the inside water-cooling required time of basin, and then increased extruder extrusion material's cooling rate, reduced extruder extrusion material surface's temperature.
4. Through reference column, fan, stand and wire netting, can be convenient for blow from the inside material surface after removing of basin to reduce the water stain on material surface, further made the material keep dry.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic diagram of the structure of the preparation process of the present invention;
FIG. 2 is a schematic view of the extruder configuration of the present invention;
FIG. 3 is a schematic view of the mounting structure of the column of the present invention;
FIG. 4 is a schematic view of the mounting structure of the fan of the present invention;
reference numbers in the figures: 1. an extruder; 2. a feed hopper; 3. a connecting rod; 4. a motor; 5. a column; 6. a collar; 7. a connecting strip; 8. connecting columns; 9. a stirring column; 10. reaming a dragon; 11. a filter disc; 12. a water tank; 13. a partition plate; 14. a filter screen; 15. a water pump; 16. a connecting pipe; 17. connecting a joint; 18. a positioning column; 19. a fan; 20. a support pillar; 21. a wire mesh.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
as shown in fig. 1, the present invention provides a technical solution, wherein a high-strength antibacterial EVA plastic pellet prepared from waste scrap is composed of the following components: EVA colloidal particles, EVA waste, PE wax, pigment, lubricant, cerium oxide, curing agent, calcium oxide powder and sulfonated chitosan;
according to the technical scheme, the EVA plastic particle comprises the following components in parts by weight: 7 parts of EVA (ethylene-vinyl acetate copolymer) colloidal particles, 30 parts of EVA waste, 11 parts of PE (polyethylene) wax, 3 parts of pigment, 4 parts of lubricant, 5 parts of cerium oxide, 7 parts of curing agent, 6 parts of calcium oxide powder and 2 parts of sulfonated chitosan.
According to the above technical scheme, the pigment is red.
According to the technical scheme, the surface of the EVA waste material does not contain other materials except the material.
According to the technical scheme, the preparation method of the composite material also comprises the following steps:
s1, sorting the EVA waste, removing surface impurities, and crushing in a crusher;
and S2, proportioning after crushing, and banburying the EVA rubber particles, the pigment, the lubricant and the cerium oxide together.
S3, after banburying is completed, grinding for the first time, and normally discharging;
s4, introducing the discharged raw materials into an internal mixing furnace again, and adding PE wax, a curing agent, calcium oxide powder and sulfonated chitosan for secondary internal mixing;
and S5, cooling and forming after banburying is qualified, and detecting and recording.
According to the technical scheme, the EVA waste in the S1 is crushed and then screened by a screen, and the mesh number of the screen is 1200 meshes.
According to the technical scheme, the banburying temperature in S2 is 85 ℃;
and S3, grinding by a grinding machine at 100 ℃, wherein the grinding machine adopts a three-roll grinding machine.
According to the technical scheme, the banburying temperature in S4 is 97 ℃;
and S5, cooling to room temperature by water cooling.
According to the technical scheme, the internally mixed finished product is detected in S5, and the detection items are color difference, hardness and antibacterial property.
According to the technical scheme, an extruder is adopted for extruding in S1-S5.
Example 2:
as shown in fig. 1, the present invention provides a technical solution, wherein a high-strength antibacterial EVA plastic pellet prepared from waste scrap is composed of the following components: EVA colloidal particles, EVA waste, PE wax, pigment, lubricant, cerium oxide, curing agent, calcium oxide powder and sulfonated chitosan;
according to the technical scheme, the EVA plastic particle comprises the following components in parts by weight: 10 parts of EVA (ethylene-vinyl acetate copolymer) colloidal particles, 32 parts of EVA waste, 14 parts of PE (polyethylene) wax, 4 parts of lubricant, 5 parts of cerium oxide, 7 parts of curing agent, 6 parts of calcium oxide powder and 2 parts of sulfonated chitosan.
According to the technical scheme, the surface of the EVA waste material does not contain other materials except the material.
According to the technical scheme, the preparation method of the composite material also comprises the following steps:
s1, sorting the EVA waste, removing surface impurities, and crushing in a crusher;
and S2, proportioning after crushing, and banburying the EVA rubber particles, the pigment, the lubricant and the cerium oxide together.
S3, after banburying is completed, grinding for the first time, and normally discharging;
s4, introducing the discharged raw materials into an internal mixing furnace again, and adding PE wax, a curing agent, calcium oxide powder and sulfonated chitosan for secondary internal mixing;
and S5, cooling and forming after banburying is qualified, and detecting and recording.
According to the technical scheme, the EVA waste in the S1 is crushed and then screened by a screen, and the screen mesh number is 1000.
According to the technical scheme, the banburying temperature in S2 is 80 ℃;
and S3, grinding by a grinding machine at 90 ℃, wherein the grinding machine adopts a three-roll grinding machine.
According to the technical scheme, the banburying temperature in S4 is 95 ℃;
and S5, cooling to room temperature by water cooling.
According to the technical scheme, the internally mixed finished product is detected in S5, and the detection items are color difference, hardness and antibacterial property.
According to the technical scheme, an extruder is adopted for extruding in S1-S5.
Example 3:
as shown in fig. 1, the present invention provides a technical solution, wherein a high-strength antibacterial EVA plastic pellet prepared from waste scrap is composed of the following components: EVA colloidal particles, EVA waste, PE wax, pigment, lubricant, cerium oxide, curing agent, calcium oxide powder and sulfonated chitosan;
according to the technical scheme, the EVA plastic particle comprises the following components in parts by weight: 7 parts of EVA (ethylene-vinyl acetate copolymer) colloidal particles, 35 parts of EVA waste, 7 parts of PE (polyethylene) wax, 3 parts of pigment, 4 parts of lubricant, 5 parts of cerium oxide, 7 parts of curing agent, 6 parts of calcium oxide powder and 2 parts of sulfonated chitosan.
According to the technical scheme, the pigment is white.
According to the technical scheme, the surface of the EVA waste material does not contain other materials except the material.
According to the technical scheme, the preparation method of the composite material also comprises the following steps:
s1, sorting the EVA waste, removing surface impurities, and crushing in a crusher;
and S2, proportioning after crushing, and banburying the EVA rubber particles, the pigment, the lubricant and the cerium oxide together.
S3, after banburying is completed, grinding for the first time, and normally discharging;
s4, introducing the discharged raw materials into an internal mixing furnace again, and adding PE wax, a curing agent, calcium oxide powder and sulfonated chitosan for secondary internal mixing;
and S5, cooling and forming after banburying is qualified, and detecting and recording.
According to the technical scheme, the EVA waste in the S1 is crushed and then screened by a screen, and the screen mesh number is 1000.
According to the technical scheme, the banburying temperature in S2 is 80 ℃;
and in S3, grinding is carried out by a grinding machine, the temperature is 110 ℃, and the grinding machine adopts a three-roll grinding machine.
According to the technical scheme, the banburying temperature in S4 is 110 ℃;
and S5, cooling to room temperature by water cooling.
According to the technical scheme, the internally mixed finished product is detected in S5, and the detection items are color difference, hardness and antibacterial property.
According to the technical scheme, an extruder is adopted for extruding in S1-S5.
The EVA plastic particles prepared according to the above embodiments 1-3 have the following detection effects:
| contrast item | Example 1 | Example 2 | Example 3 |
| Color difference | Is free of | Is free of | Is free of |
| Hardness (5 MPa) | Without damage | Without damage | Without damage |
| Antibacterial property (50 degree/48H) | No deformation and oxidation of the surface | No deformation and oxidation of the surface | No slight deformation and oxidation of the surface |
The flexibility in preparation is improved by adding the lubricant, normal feeding and discharging of the lubricant are facilitated, the flow guide effect is improved, the smoothness of cerium oxide is improved, the surface smoothness and hardness of the lubricant are further guaranteed under the cooperation of the curing agent, the hardness after forming is improved by adding the calcium oxide powder, the antioxidation effect of sulfonated chitosan is improved, the antibacterial effect is improved, and the oxidative corrosion of external bacteria to the sulfonated chitosan is prevented, but the lubrication degree is insufficient due to the low content of the PE wax in the embodiment 3, the lubricant is somewhat blocked in production, and the deformation phenomenon occurs in later experiments.
Example 4:
as shown in fig. 2-4, the invention provides a technical scheme, which comprises an extruder 1, wherein a feed hopper 2 is embedded and installed on one side of the top end of the extruder 1, a connecting rod 3 is welded on the top end of the feed hopper 2, a motor 4 is fixedly installed in the middle of the top end of the connecting rod 3, an output shaft of the motor 4 is connected with an upright post 5 through a flat key, lantern rings 6 are welded on the outer surface of the upright post 5 at equal intervals, connecting strips 7 are welded on the outer surface of the lantern rings 6 at equal intervals, connecting posts 8 are welded in the middle of the bottom end of the connecting strips 7 at equal intervals, stirring posts 9 are welded on the outer surface of the connecting posts 8 at equal intervals, a hinge 10 is fixedly installed in the middle of the bottom end of the upright post 5, a filtering disc 11 is sleeved on the edge portion of the.
1 one end of extruder is connected with basin 12, basin 12 inner wall one side welding has division board 13, division board 13 one end limit portion fixed mounting has filter screen 14, basin 12 inner wall corresponds filter screen 14 one end position department and installs water pump 15, water pump 15 and motor 4's input all with the output electric connection of commercial power, mutually perpendicular between division board 13 and the filter screen 14, can be convenient for water pump 15 and motor 4's normal use, water pump 15 one end is connected with connecting pipe 16, the connecting pipe 16 other end is connected with attach fitting 17, attach fitting 17 and connecting pipe 16 junction are provided with the sealing washer, fixed connection between attach fitting 17 one end and the basin 12, attach fitting 17 and connecting pipe 16 junction of being convenient for seal, prevent to take place the phenomenon of leaking between attach fitting 17 and the connecting pipe 16 junction.
12 one end symmetric welding of basin has reference column 18, reference column 18 one end is connected with fan 19, connecting pipe 16 is located between fan 19 and wire netting 21, the external diameter of connecting pipe 16 is less than the length of support column 20, can be convenient for blow the 16 surfaces of connecting pipe, thereby dispel the heat to connecting pipe 16, the heat dissipation degree of difficulty of connecting pipe 16 has been reduced, fan 19's input and the output electric connection of commercial power, the equal fixed welding in fan 19 top four corners department has support column 20, the middle part welding in support column 20 top has wire netting 21.
The working principle and the using process of the invention are as follows: in the process, materials enter the feeding hopper 2, then the motor 4 is connected with a power supply and starts to operate, the motor 4 drives the stand column 5 to rotate when operating, the stand column 5 drives the lantern ring 6 to rotate when rotating, the lantern ring 6 drives the connecting strip 7 to rotate when rotating, the connecting strip 7 drives the connecting column 8 to rotate when rotating, the connecting column 8 drives the stirring column 9 to rotate, the stand column 5 can drive the auger 10 to rotate when rotating, the materials entering the extruder 1 can be stirred, the stirring difficulty of the materials entering the extruder 1 is reduced, the materials entering the extruder 1 are more uniform, meanwhile, the materials inside the feeding hopper 2 can conveniently enter the extruder 1 by using the auger 10, and the difficulty of the materials entering the extruder 1 is reduced;
the material extruded by the extruder 1 enters the water tank 12 and is cooled in the water tank 12, the water pump 15 is connected with a power supply and starts to operate, the water pump 15 drives liquid to enter the connecting pipe 16 along the filter screen 14 when operating, and water stain in the connecting pipe 16 enters the water tank 12 along the connecting joint 17, so that the water in the water tank 12 can flow conveniently, the flowing speed of the water in the water tank 12 is accelerated, the cooling of the water in the water tank 12 is accelerated, the time required by the water cooling in the water tank 12 is reduced, the cooling speed of the material extruded by the extruder 1 is increased, and the temperature of the surface of the material extruded by the extruder 1 is reduced;
finally, the fan 19 is connected with a power supply and starts to operate, and the fan 19 drives the air flow to enter the surface of the material along the wire mesh 21 during operation, so that the water stain on the surface of the material is blown, and meanwhile, the air flow blown out by the fan 19 is blown to the outer surface of the connecting pipe 16, so that the connecting pipe 16 is cooled, the surface of the material after moving from the inside of the water tank 12 can be conveniently blown, the water stain on the surface of the material is reduced, and the material is further kept dry.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Utilize antibiotic EVA plastic particle of high strength that abandonment leftover bits prepared, its characterized in that: the EVA plastic particle consists of the following components: EVA colloidal particles, EVA waste, PE wax, pigment, lubricant, cerium oxide, curing agent, calcium oxide powder and sulfonated chitosan;
the EVA plastic particle consists of the following components in percentage by weight: 5-15 parts of EVA (ethylene vinyl acetate) colloidal particles, 20-35 parts of EVA waste, 7-16 parts of PE (polyethylene) wax, 0-20 parts of pigment, 3-7 parts of lubricant, 3-8 parts of cerium oxide, 3-11 parts of curing agent, 3-7 parts of calcium oxide powder and 1-3 parts of sulfonated chitosan.
2. The high-strength antibacterial EVA plastic pellet prepared from the waste leftover material of claim 1, which consists of the following components in percentage by weight: 7 parts of EVA (ethylene-vinyl acetate copolymer) colloidal particles, 30 parts of EVA waste, 11 parts of PE (polyethylene) wax, 3 parts of pigment, 4 parts of lubricant, 5 parts of cerium oxide, 7 parts of curing agent, 6 parts of calcium oxide powder and 2 parts of sulfonated chitosan.
3. The high-strength antibacterial EVA plastic pellet prepared from the waste leftover material according to claim 1, wherein the pigment is one or more of three primary colors.
4. The high-strength antibacterial EVA plastic pellet prepared from the waste leftover material according to claim 1, wherein the surface of the EVA waste material does not contain other materials except the material.
5. The high-strength antibacterial EVA plastic pellet prepared from the waste leftover materials according to any one of claims 1 to 4, further comprising a preparation method thereof, and the preparation method comprises the following steps:
s1, sorting the EVA waste, removing surface impurities, and crushing in a crusher;
and S2, proportioning after crushing, and banburying the EVA rubber particles, the pigment, the lubricant and the cerium oxide together.
S3, after banburying is completed, grinding for the first time, and normally discharging;
s4, introducing the discharged raw materials into an internal mixing furnace again, and adding PE wax, a curing agent, calcium oxide powder and sulfonated chitosan for secondary internal mixing;
and S5, cooling and forming after banburying is qualified, and detecting and recording.
6. The method as claimed in claim 5, wherein the EVA waste material of S1 is crushed and sieved through a sieve with a mesh size of 1000-1200 meshes.
7. The method for preparing high-strength antibacterial EVA plastic pellets from waste scraps as claimed in claim 5, wherein the banburying temperature in S2 is 80-90 ℃;
and in the S3, grinding is carried out by a grinding machine, the temperature is 70-110 ℃, and the grinding machine adopts a three-roll grinding machine.
8. The method for preparing high-strength antibacterial EVA plastic pellets from waste scraps as claimed in claim 5, wherein the banburying temperature in S4 is 90-112 ℃;
and in the step S5, cooling to room temperature by water cooling.
9. The method for preparing high-strength antibacterial EVA plastic pellets from waste scraps as claimed in claim 5, wherein the detection items of color difference, hardness and antibacterial property are detected in S5 for the internally mixed finished product.
10. The method for preparing high-strength antibacterial EVA plastic pellets from waste scraps as claimed in claim 5, wherein an extruder is used for extrusion in S1-S5.
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