CN110804241A - Preparation method of high-elastic sole for EVA insole - Google Patents

Preparation method of high-elastic sole for EVA insole Download PDF

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Publication number
CN110804241A
CN110804241A CN201911101242.9A CN201911101242A CN110804241A CN 110804241 A CN110804241 A CN 110804241A CN 201911101242 A CN201911101242 A CN 201911101242A CN 110804241 A CN110804241 A CN 110804241A
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parts
sole
eva
raw materials
open
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桂良忠
李丙礼
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Quanzhou Radonda Shoes Material Co
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Quanzhou Radonda Shoes Material Co
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Priority to CN201911101242.9A priority Critical patent/CN110804241A/en
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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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04—Plastics, rubber or vulcanised fibre
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0085—Use of fibrous compounding ingredients
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • 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
    • C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/16—Ethene-propene or ethene-propene-diene copolymers
    • 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
    • C08J2427/00—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 at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/04—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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2427/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
    • 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
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • 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
    • C08K3/02—Elements
    • C08K3/06—Sulfur
    • 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
    • C08K5/00—Use of organic ingredients
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention discloses a preparation method of a high-elastic sole for an EVA (ethylene-vinyl acetate) insole, which comprises the following steps: A. crushing raw materials: EVA, zinc oxide, polyvinyl chloride, butadiene rubber, thermoplastic polyamide, silica gel, zinc oxide, mint, glass fiber and ethylene propylene diene monomer are separately put into a crusher for crushing treatment, and the crushing mesh number is 100-200 meshes; B. open mixing: and (3) putting the crushed raw materials into an open mill for open milling treatment, wherein the temperature of the open mill is 150-180 ℃, and the open milling time is 10-15 min. According to the invention, through the addition of the raw materials such as EVA, the foaming agent, the ethylene propylene diene monomer, the mint, the traditional Chinese medicine extracting solution and the like, the sole has good cushioning, high elasticity, wear resistance, antibacterial, deodorizing and health-care performances, the market competitiveness of the sole is expanded, the preparation method is simple, the whole process is smooth, the phenomenon of nest work does not occur, the production efficiency is improved, and the sole accords with the benefits of enterprises.

Description

Preparation method of high-elastic sole for EVA insole
Technical Field
The invention relates to the technical field of soles, in particular to a preparation method of a high-elastic sole for an EVA (ethylene vinyl acetate) midsole.
Background
Along with social progress and economic level continuous development, people's standard of living is constantly improved, people also are higher and higher to the performance of shoes, the requirement in aspects such as comfort level, and the sole is as the important component of shoes, can contact various bacterium to different extents in the in-process of wearing, and human sweat, sweat stain all can be attached to, permeate to the sole in addition, still can produce the peculiar smell, still can breed the bacterium in humid season, cause the sole to go mildy, but the aforesaid problem can't be solved to current sole to bring inconvenience for people's use.
Disclosure of Invention
The invention aims to provide a method for preparing a high-elastic sole for an EVA (ethylene-vinyl acetate) midsole, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a high-elastic sole for an EVA midsole comprises the following steps:
A. crushing raw materials: EVA, zinc oxide, polyvinyl chloride, butadiene rubber, thermoplastic polyamide, silica gel, zinc oxide, mint, glass fiber and ethylene propylene diene monomer are separately put into a crusher for crushing treatment, and the crushing mesh number is 100-200 meshes;
B. open mixing: placing the crushed raw materials into an open mill for open milling treatment, wherein the temperature of the open mill is 150 ℃ and 180 ℃, and the open milling time is 10-15 min;
C. banburying: conveying the mixed solution after the open mixing into an internal mixer for internal mixing treatment, adding a foaming agent and a traditional Chinese medicine extracting solution, wherein the temperature of the internal mixer is 70-110 ℃, and the internal mixing time is 10-18 min;
D. and (3) vulcanization molding: sending the mixed liquid after banburying into a vulcanizing machine, adding sulfur powder for vulcanization molding treatment, wherein the vulcanization temperature is 160-200 ℃;
E. and (3) mould pressing foaming: after the material after vulcanization molding is placed for 16-21h, measuring the positive vulcanization time and the foaming time by using a vulcanizer, and carrying out mould pressing and foaming treatment by using a flat vulcanizing machine;
F. injection molding: injecting the foamed raw materials into a prefabricated sole mold, and carrying out molding treatment;
G. demolding: standing at normal temperature for 20-30min, and taking out the sole;
H. trimming: cutting and polishing the edge of the sole;
I. and packaging and warehousing after the inspection is qualified.
Preferably, the raw materials comprise the following components in parts by weight: 80-100 parts of EVA; 3-7 parts of zinc oxide; 10-15 parts of a foaming agent; 20-30 parts of polyvinyl chloride; 10-15 parts of butadiene rubber; 2-6 parts of thermoplastic polyamide; 8-13 parts of silica gel; 2-5 parts of zinc oxide; 4-10 parts of mint; 3-7 parts of glass fiber; 2-8 parts of a traditional Chinese medicine extracting solution; 10-20 parts of ethylene propylene diene monomer; 15-22 parts of sulfur powder.
Preferably, the step A is also provided with a material returning mechanism, the material returning mechanism comprises a fan and a pipeline, the air inlet end of the fan is communicated with the bottom of the pulverizer through the pipeline, and the air outlet end of the fan is communicated with the top of the pulverizer through the pipeline.
Preferably, purification mechanisms are arranged in the step B and the step C and comprise a physical filter box and an acid-base neutralization solution filter box, meanwhile, the physical filter box and the acid-base neutralization solution filter box are communicated through a pipeline, and two layers of filter screens are arranged in the physical filter box.
Preferably, the cutting tool in the step H is a motor provided with one mechanical arm having a cutting blade, and the grinding tool is a motor provided with another mechanical arm having a grinding disc.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the addition of the raw materials such as EVA, the foaming agent, the ethylene propylene diene monomer, the mint, the traditional Chinese medicine extracting solution and the like, the sole has good cushioning, high elasticity, wear resistance, antibacterial, deodorizing and health-care performances, the market competitiveness of the sole is expanded, the preparation method is simple, the whole process is smooth, the phenomenon of nest work does not occur, the production efficiency is improved, and the sole accords with the benefits of enterprises.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
The first embodiment is as follows:
a preparation method of a high-elastic sole for an EVA midsole comprises the following steps:
A. crushing raw materials: separately putting EVA, zinc oxide, polyvinyl chloride, butadiene rubber, thermoplastic polyamide, silica gel, zinc oxide, mint, glass fiber and ethylene propylene diene monomer rubber into a crusher for crushing, wherein the crushed mesh number is 100 meshes;
B. open mixing: placing the crushed raw materials into an open mill for open milling treatment, wherein the temperature of the open mill is 150 ℃, and the open milling time is 15 min;
C. banburying: conveying the mixed solution after the open mixing into an internal mixer for internal mixing treatment, and adding a foaming agent and a traditional Chinese medicine extracting solution, wherein the temperature of the internal mixer is 70 ℃, and the internal mixing time is 18 min;
D. and (3) vulcanization molding: sending the mixed liquid into a vulcanizing machine, adding sulfur powder for vulcanization molding treatment, wherein the vulcanization temperature is 160 ℃;
E. and (3) mould pressing foaming: after the vulcanized and formed material is placed for 16 hours, measuring the positive vulcanization time and the foaming time by a vulcanizer, and carrying out mould pressing and foaming treatment by a flat vulcanizing machine;
F. injection molding: injecting the foamed raw materials into a prefabricated sole mold, and carrying out molding treatment;
G. demolding: standing at normal temperature for 20min, and taking out the sole;
H. trimming: cutting and polishing the edge of the sole;
I. and packaging and warehousing after the inspection is qualified.
Through the addition of the raw materials such as the EVA, the foaming agent, the ethylene propylene diene monomer, the mint, the traditional Chinese medicine extracting solution and the like, the sole has good cushioning, high elasticity, wear resistance, antibiosis, deodorization and health care performances, the market competitiveness is expanded, the preparation method is simple, the whole process is smooth, the phenomenon of unsmooth work does not occur, the production efficiency is improved, and the sole accords with the benefits of enterprises.
The weight parts of the raw materials are as follows: 80 parts of EVA; 3 parts of zinc oxide; 10 parts of a foaming agent; 20 parts of polyvinyl chloride; 10 parts of butadiene rubber; 2 parts of thermoplastic polyamide; 8 parts of silica gel; 2 parts of zinc oxide; 4 parts of mint; 3 parts of glass fiber; 2 parts of a traditional Chinese medicine extracting solution; 10 parts of ethylene propylene diene monomer; and 15 parts of sulfur powder.
And step A is also provided with a material returning mechanism, the material returning mechanism comprises a fan and a pipeline, the air inlet end of the fan is communicated with the bottom of the pulverizer through the pipeline, and the air outlet end of the fan is communicated with the top of the pulverizer through the pipeline.
And step B and step C are both provided with purification mechanisms, each purification mechanism comprises a physical filter box and an acid-base neutralization solution filter box, the physical filter boxes and the acid-base neutralization solution filter boxes are communicated through pipelines, and two layers of filter screens are arranged in the physical filter boxes, wherein one layer of filter screen is a quartz sand filter screen, and the other layer of filter screen is a HEPA filter screen.
And D, the cutting tool in the step H is provided with a motor with a cutting blade on one mechanical arm, and the polishing tool is provided with a motor with a polishing disc on the other mechanical arm.
Example two:
a preparation method of a high-elastic sole for an EVA midsole comprises the following steps:
A. crushing raw materials: separately putting EVA, zinc oxide, polyvinyl chloride, butadiene rubber, thermoplastic polyamide, silica gel, zinc oxide, mint, glass fiber and ethylene propylene diene monomer rubber into a crusher to crush, wherein the crushed mesh number is 150 meshes;
B. open mixing: placing the crushed raw materials into an open mill for open milling treatment, wherein the temperature of the open mill is 165 ℃, and the open milling time is 13 min;
C. banburying: conveying the mixed solution after the open mixing into an internal mixer for internal mixing treatment, and adding a foaming agent and a traditional Chinese medicine extracting solution, wherein the temperature of the internal mixer is 90 ℃, and the internal mixing time is 14 min;
D. and (3) vulcanization molding: sending the mixed liquid after banburying into a vulcanizing machine, adding sulfur powder for vulcanization molding treatment, wherein the vulcanization temperature is 180 ℃;
E. and (3) mould pressing foaming: after the vulcanized and formed material is placed for 19 hours, measuring the positive vulcanization time and the foaming time by a vulcanizer, and carrying out mould pressing and foaming treatment by a flat vulcanizing machine;
F. injection molding: injecting the foamed raw materials into a prefabricated sole mold, and carrying out molding treatment;
G. demolding: standing at normal temperature for 25min, and taking out the sole;
H. trimming: cutting and polishing the edge of the sole;
I. and packaging and warehousing after the inspection is qualified.
Through the addition of the raw materials such as the EVA, the foaming agent, the ethylene propylene diene monomer, the mint, the traditional Chinese medicine extracting solution and the like, the sole has good cushioning, high elasticity, wear resistance, antibiosis, deodorization and health care performances, the market competitiveness is expanded, the preparation method is simple, the whole process is smooth, the phenomenon of unsmooth work does not occur, the production efficiency is improved, and the sole accords with the benefits of enterprises.
The weight parts of the raw materials are as follows: 90 parts of EVA; 5 parts of zinc oxide; 13 parts of a foaming agent; 25 parts of polyvinyl chloride; 12 parts of butadiene rubber; 4 parts of thermoplastic polyamide; 10 parts of silica gel; 3 parts of zinc oxide; 7 parts of mint; 5 parts of glass fiber; 5 parts of a traditional Chinese medicine extracting solution; 15 parts of ethylene propylene diene monomer; 18 parts of sulfur powder.
And step A is also provided with a material returning mechanism, the material returning mechanism comprises a fan and a pipeline, the air inlet end of the fan is communicated with the bottom of the pulverizer through the pipeline, and the air outlet end of the fan is communicated with the top of the pulverizer through the pipeline.
And step B and step C are both provided with purification mechanisms, each purification mechanism comprises a physical filter box and an acid-base neutralization liquid filter box, the physical filter boxes and the acid-base neutralization liquid filter boxes are communicated through pipelines, and two layers of filter screens are arranged in the physical filter boxes, wherein one layer of filter screen is a sponge filter layer, and the other layer of filter screen is an activated carbon filter layer.
And D, the cutting tool in the step H is provided with a motor with a cutting blade on one mechanical arm, and the polishing tool is provided with a motor with a polishing disc on the other mechanical arm.
Example three:
a preparation method of a high-elastic sole for an EVA midsole comprises the following steps:
A. crushing raw materials: separately putting EVA, zinc oxide, polyvinyl chloride, butadiene rubber, thermoplastic polyamide, silica gel, zinc oxide, mint, glass fiber and ethylene propylene diene monomer rubber into a crusher for crushing, wherein the crushed mesh number is 200 meshes;
B. open mixing: putting the crushed raw materials into an open mill for open milling treatment, wherein the temperature of the open mill is 180 ℃, and the open milling time is 10 min;
C. banburying: conveying the mixed solution after the open mixing into an internal mixer for internal mixing treatment, and adding a foaming agent and a traditional Chinese medicine extracting solution, wherein the temperature of the internal mixer is 110 ℃, and the internal mixing time is 10 min;
D. and (3) vulcanization molding: sending the mixed liquid after banburying into a vulcanizing machine, adding sulfur powder for vulcanization molding treatment, wherein the vulcanization temperature is 200 ℃;
E. and (3) mould pressing foaming: after the vulcanized and formed material is placed for 21 hours, measuring the positive vulcanization time and the foaming time by a vulcanizer, and carrying out mould pressing and foaming treatment by a flat vulcanizing machine;
F. injection molding: injecting the foamed raw materials into a prefabricated sole mold, and carrying out molding treatment;
G. demolding: standing at normal temperature for 30min, and taking out the sole;
H. trimming: cutting and polishing the edge of the sole;
I. and packaging and warehousing after the inspection is qualified.
Through the addition of the raw materials such as the EVA, the foaming agent, the ethylene propylene diene monomer, the mint, the traditional Chinese medicine extracting solution and the like, the sole has good cushioning, high elasticity, wear resistance, antibiosis, deodorization and health care performances, the market competitiveness is expanded, the preparation method is simple, the whole process is smooth, the phenomenon of unsmooth work does not occur, the production efficiency is improved, and the sole accords with the benefits of enterprises.
The weight parts of the raw materials are as follows: 100 parts of EVA; 7 parts of zinc oxide; 15 parts of a foaming agent; 30 parts of polyvinyl chloride; 15 parts of butadiene rubber; 6 parts of thermoplastic polyamide; 13 parts of silica gel; 5 parts of zinc oxide; 10 parts of mint; 7 parts of glass fiber; 8 parts of a traditional Chinese medicine extracting solution; 20 parts of ethylene propylene diene monomer; 22 parts of sulfur powder.
And step A is also provided with a material returning mechanism, the material returning mechanism comprises a fan and a pipeline, the air inlet end of the fan is communicated with the bottom of the pulverizer through the pipeline, and the air outlet end of the fan is communicated with the top of the pulverizer through the pipeline.
And step B and step C are both provided with purification mechanisms, each purification mechanism comprises a physical filter box and an acid-base neutralization solution filter box, the physical filter boxes and the acid-base neutralization solution filter boxes are communicated through a pipeline, and two layers of filter screens are arranged in the physical filter boxes, wherein one layer of filter screen is an acrylic fiber grid cloth layer, and the other layer of filter screen is a polyimide fiber needled felt layer.
And D, the cutting tool in the step H is provided with a motor with a cutting blade on one mechanical arm, and the polishing tool is provided with a motor with a polishing disc on the other mechanical arm.
When the sole is used, the raw materials such as the EVA, the foaming agent, the ethylene propylene diene monomer, the mint, the traditional Chinese medicine extracting solution and the like are added, so that the sole has good shock-absorbing, high-elasticity, wear-resisting, antibacterial, deodorizing and health-care performances, the market competitiveness is expanded, the preparation method is simple, the whole process is smooth, the phenomenon of unsmooth work does not exist, the production efficiency is improved, and the sole accords with the benefits of enterprises.
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 (5)

1. A preparation method of a high-elastic sole for an EVA insole is characterized by comprising the following steps: the preparation method comprises the following steps:
A. crushing raw materials: EVA, zinc oxide, polyvinyl chloride, butadiene rubber, thermoplastic polyamide, silica gel, zinc oxide, mint, glass fiber and ethylene propylene diene monomer are separately put into a crusher for crushing treatment, and the crushing mesh number is 100-200 meshes;
B. open mixing: placing the crushed raw materials into an open mill for open milling treatment, wherein the temperature of the open mill is 150 ℃ and 180 ℃, and the open milling time is 10-15 min;
C. banburying: conveying the mixed solution after the open mixing into an internal mixer for internal mixing treatment, adding a foaming agent and a traditional Chinese medicine extracting solution, wherein the temperature of the internal mixer is 70-110 ℃, and the internal mixing time is 10-18 min;
D. and (3) vulcanization molding: sending the mixed liquid after banburying into a vulcanizing machine, adding sulfur powder for vulcanization molding treatment, wherein the vulcanization temperature is 160-200 ℃;
E. and (3) mould pressing foaming: after the material after vulcanization molding is placed for 16-21h, measuring the positive vulcanization time and the foaming time by using a vulcanizer, and carrying out mould pressing and foaming treatment by using a flat vulcanizing machine;
F. injection molding: injecting the foamed raw materials into a prefabricated sole mold, and carrying out molding treatment;
G. demolding: standing at normal temperature for 20-30min, and taking out the sole;
H. trimming: cutting and polishing the edge of the sole;
I. and packaging and warehousing after the inspection is qualified.
2. The method for preparing the high-elastic sole for the EVA midsole according to claim 1, wherein the method comprises the following steps: the raw materials comprise the following components in parts by weight: 80-100 parts of EVA; 3-7 parts of zinc oxide; 10-15 parts of a foaming agent; 20-30 parts of polyvinyl chloride; 10-15 parts of butadiene rubber; 2-6 parts of thermoplastic polyamide; 8-13 parts of silica gel; 2-5 parts of zinc oxide; 4-10 parts of mint; 3-7 parts of glass fiber; 2-8 parts of a traditional Chinese medicine extracting solution; 10-20 parts of ethylene propylene diene monomer; 15-22 parts of sulfur powder.
3. The method for preparing the high-elastic sole for the EVA midsole according to claim 1, wherein the method comprises the following steps: and step A is also provided with a material returning mechanism, the material returning mechanism comprises a fan and a pipeline, the air inlet end of the fan is communicated with the bottom of the pulverizer through the pipeline, and the air outlet end of the fan is communicated with the top of the pulverizer through the pipeline.
4. The method for preparing the high-elastic sole for the EVA midsole according to claim 1, wherein the method comprises the following steps: and B, purifying mechanisms are arranged in the step B and the step C, each purifying mechanism comprises a physical filtering tank and an acid-base neutralizing liquid filtering tank, the physical filtering tanks and the acid-base neutralizing liquid filtering tanks are communicated through pipelines, and two layers of filtering nets are arranged in the physical filtering tanks.
5. The method for preparing the high-elastic sole for the EVA midsole according to claim 1, wherein the method comprises the following steps: and the cutting tool in the step H is provided with a motor with one mechanical arm provided with a cutting blade, and the grinding tool is provided with a motor with the other mechanical arm provided with a grinding disc.
CN201911101242.9A 2019-11-12 2019-11-12 Preparation method of high-elastic sole for EVA insole Pending CN110804241A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112140606A (en) * 2020-09-09 2020-12-29 瑞安市匡泰鞋业有限公司 Sole production process
CN112716106A (en) * 2020-12-29 2021-04-30 汪红 Manufacturing method of EVA (ethylene vinyl acetate) combined sole

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109880225A (en) * 2019-03-08 2019-06-14 安踏（中国）有限公司 A kind of resistance to deformation height support EVA foamed material and its preparation method and application
CN110144065A (en) * 2019-05-14 2019-08-20 林建辉 A kind of antibacterial foamed shoe sole and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109880225A (en) * 2019-03-08 2019-06-14 安踏（中国）有限公司 A kind of resistance to deformation height support EVA foamed material and its preparation method and application
CN110144065A (en) * 2019-05-14 2019-08-20 林建辉 A kind of antibacterial foamed shoe sole and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112140606A (en) * 2020-09-09 2020-12-29 瑞安市匡泰鞋业有限公司 Sole production process
CN112716106A (en) * 2020-12-29 2021-04-30 汪红 Manufacturing method of EVA (ethylene vinyl acetate) combined sole

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