CN108587137B - Ionic/covalent crosslinking foaming high-elastic wear-resistant ultralight sports sole material with polyether block amide as matrix and preparation method thereof - Google Patents
Ionic/covalent crosslinking foaming high-elastic wear-resistant ultralight sports sole material with polyether block amide as matrix and preparation method thereof Download PDFInfo
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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
- C08J9/06—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 by a chemical blowing agent
- C08J9/10—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 by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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- 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
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
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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
- 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
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K3/34—Silicon-containing compounds
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
Abstract
The invention discloses an ionic/covalent crosslinking foaming high-elastic wear-resistant ultralight sports shoe sole material taking polyether block amide as a matrix and a preparation method thereof, wherein the sports shoe sole material is prepared from the following components in parts by mass: 55-75 parts of polyether block amide, 8-25 parts of propenyl thermoplastic elastomer, 8-25 parts of ethylene propylene diene monomer, 3-10 parts of wear-resisting agent, 0.6-1.5 parts of organic peroxide, 1.8-4.0 parts of azodicarbonamide, 0.5-5 parts of zinc oxide, 0.5-1 part of stearic acid, 0.5-1 part of zinc stearate and 5-15 parts of talcum powder. When the hardness of the finished product is 45-55 Shore C, the density of the finished product is not more than 0.15g/cm3The resilience rate is 56% -63%, and the DIN abrasion resistance is not more than 200mm3The tensile strength is 3.2-4.3M Pa, the elongation at break is not less than 220%, the trouser tear strength is not less than 4.0N/mm, and the compression permanent deformation is not more than 35%, so that the ultra-light cross-linked foamed sole material is realized, and the requirements of high elasticity, buffering, shock absorption and wear resistance are met.
Description
Technical Field
The invention relates to a sports shoe sole material, in particular to an ionic/covalent crosslinking foaming high-elastic wear-resistant ultralight sports shoe sole material taking polyether block amide as a matrix and a preparation method thereof
Background
The light weight, high elasticity and wear resistance of the material of the sports shoe sole are always one of the goals pursued by the sports shoe manufacturing industry. At present, the sole material for sports shoes on the market is mainly obtained by blending ethylene-vinyl acetate copolymer (EVA) and other polymer materials and then performing cross-linking foaming, for example, Chinese patent CN201310154585.8 provides a cross-linking foaming sole material prepared by EVA/POE/LDPE/OBCs quaternary blend with ethylene-EVA as a matrix, and when the hardness of a finished product is 48-53 Shore C, the relative density of the finished product is 0.22-0.24 g/cm3. The sports soles at home and abroad are mostly made of polymers taking EVA as a matrix, the elasticity of the sports soles is not more than 45%, and the relative density of the sports soles is 0.25-0.30 g/cm when the hardness is 45-55 Shore C and the sports soles are made of cross-linked foam materials of EVA and ethylene propylene diene monomer3。
The ionic bond crosslinking of the polymer is realized by reacting a copolymer containing carboxylic acid or sulfonic acid functional groups with metal oxide and forming a crosslinked network of ionic bonds under the action of ion pairs and ionic clusters at normal temperature, thereby realizing high elasticity and excellent mechanical property. The more carboxylic acid groups the polymer contains, the higher the degree of ionic crosslinking. The method of combining ionic bond crosslinking with covalent bond crosslinking is adopted to prepare the ultralight, high-elasticity and wear-resistant polymer crosslinking foaming sports shoe sole material, and the method is worthy of development.
Disclosure of Invention
The invention aims to provide an ionic/covalent crosslinking foaming high-elastic ultra-light sports sole material which does not contain EVA and takes polyether block amide as a matrix and a preparation method thereof. The polyether block amide is a thermoplastic elastomer, and the structure of the polyether block amide can be represented as HO- (CO-PA-CO-PE-O)n-H, wherein PA represents a polyamide segment and PE represents a polyether segment.
In order to solve the problems, the invention adopts the technical scheme that:
the ionic/covalent crosslinking foaming high-elasticity wear-resistant ultralight sports shoe sole material with polyether block amide as a matrix is prepared from the following components in parts by mass:
the organic peroxide is one of dicumyl peroxide, di-tert-butyldiisopropylbenzene, di-tert-butyl oxide, tert-butyl cumyl peroxide or tert-butyl hydroperoxide, or a mixture of the dicumyl peroxide, the di-tert-butyldiisopropylbenzene, the di-tert-butyl oxide, the tert-butyl cumyl peroxide or the tert-butyl hydroperoxide in any proportion.
The polyether block amide is made by Arkema, France
2533。
The propylene-based thermoplastic elastomer is Vistamaxx from exxon MobilTM 6202。
The ethylene propylene diene monomer is Nordel of Dow chemical company in AmericaTM IP 3760P。
The preparation method of the ionic/covalent crosslinking foaming high-elastic wear-resistant ultralight sports shoe sole material with polyether block amide as a matrix is characterized by comprising the following steps of: which comprises the following steps:
(1) adding polyether block amide, an allyl thermoplastic elastomer, ethylene propylene diene monomer, an anti-wear agent, zinc oxide, stearic acid, zinc stearate and talcum powder into an internal mixer for mixing, after the temperature is raised to 105-plus-material 115 ℃, turning the materials once every 2-3 ℃, raising the temperature to 115-plus-material 125 ℃ within 10min, then adding organic peroxide and azodicarbonamide, continuing mixing for 2-3min, turning the materials once every 2 ℃ when the temperature is raised, and discharging when the temperature is raised to 125-plus-material 135 ℃;
(2) transferring the discharged materials to a roller open mill at the temperature of 115-120 ℃, wherein the roller distance is 10-12mm, mixing the materials for 1-2 times in a triangular bag mode, mixing the materials for 1 time at the roller distance of 1mm, transferring the materials to a granulator, controlling the temperature of a die head to be 125 ℃, and granulating to obtain granules with the length diameter of 2-4 mm;
(3) and putting the granules into an injection machine, setting the temperature of the four sections of a spray gun to be 95 +/-5 ℃, 105 +/-5 ℃, 115 +/-5 ℃ and 105 +/-5 ℃, setting the injection pressure of the spray gun to be 5-12MPa, injecting the granules into a mold with the mold cavity thickness of 2-15mm and the mold pressing temperature of 8-12MPa and the temperature of 160-195 ℃, and heating for 200-450s to obtain the ionic/covalent crosslinking foaming high-elastic wear-resistant ultra-light sports sole material taking polyether block amide as the matrix.
In the preparation process, the ionic bond crosslinking reaction process in the raw materials is shown as the formula 1:
formula 1 Ionic bond crosslinking reaction process schematic
Polyether block amide thermoplastic elastomer, the structure of which can be represented by HO- (CO-PA-CO-PE-O)n-H, wherein PA represents a polyamide segment and PE represents a polyether segment. By adjusting the types and the lengths of the polyether chain segments and the polyamide chain segments and the proportion of the two chain segments, excellent hand feeling, elasticity and processability, and excellent aging resistance and abrasion resistance can be obtained. The molecular structure of the polyether block amide contains terminal carboxyl, amido link, terminal amino and ether link segment, and the functional groups or the link segment can react with metal oxide to form a cross-linked network under the action of ion pairs and ion clusters, so that high elasticity and excellent mechanical property are realized. In the process of preparing the ionic/covalent crosslinking foaming high-elasticity, ultra-light and wear-resistant sports shoe sole material taking polyether block amide as a matrix, the ionic bond crosslinking network formed by the reaction of the block polyether amide thermoplastic elastomer and metal oxide and the covalent bond crosslinking network formed by the initiation of organic peroxide are provided. By controlling the degree of ionic bond crosslinking and covalent bond crosslinking, a strong crosslinked polymer system with an ionic/covalent crosslinked network is formed, new properties are endowed to the material, and the system can obtain a larger foaming multiplying power during foaming, so that the material has lower density, and finally the ionic/covalent crosslinked foamed sports shoe sole material taking the ultra-light, high-elastic and wear-resistant polyether block amide as a matrix is obtained.
The invention has the beneficial effects that: the invention provides an ion/covalent crosslinking foaming high-elasticity wear-resistant ultra-light transport taking polyether block amide as a matrixThe density of the finished product of the sole material is not more than 0.15g/cm when the hardness of the finished product is 45-55 Shore C3The rebound resilience is 56-63 percent, and the DIN abrasion resistance is not more than 200mm3The cross-linked foamed sports shoe sole material has the advantages that the tensile strength is 3.2-4.3M Pa, the elongation at break is not less than 220%, the trouser-shaped tearing strength is not less than 4.0N/mm, and the compression permanent deformation is not more than 35%, so that the ultra-light, buffering, shock absorption and wear resistance requirements of the cross-linked foamed sports shoe sole material are met, and the preparation method is provided for the ultra-light, high-elastic and wear resistance development of the cross-linked foamed sports shoe sole material without EVA.
Detailed Description
The present invention will be further described with reference to the following specific examples.
The materials used in the invention and their sources are as follows:
polyether block amides (C)
2533) Arkema, France.
Propylene-based thermoplastic elastomer (Vistamaxx)TM6202) Exxon Mobil, Inc.
Ethylene propylene diene monomer (Nordel)TMIP3760P), Dow chemical company, usa.
Azodicarbonamide (AC), hangzhou haihong fine chemical ltd.
Suitable organic peroxides: dicumyl peroxide (DCP) with purity of more than 97%, Shanghai Gaoqiao petrochemical Co., Ltd; bis-tert-butyldiisopropylbenzene (BIBP), purity greater than 99%, Arkema, France.
Stearic acid (St), zinc stearate (ZnSt), industrial purity, Hangzhou grease chemical Co., Ltd.
Zinc oxide (ZnO), industrial pure, kyoto chemical limited, shanghai.
Talcum powder (TA), Industrial pure, Asahon powder materials Limited, Quanzhou City.
Antiwear agent, industrial purity, Baozi plastics Co., Ltd, Dongguan city.
Examples 1 to 6
1. Table 1 gives the raw material formulations for 6 examples.
Table 1 formulations of examples 1-6
2. Preparation method
(1) According to the formulation of Table 1, polyether block amides (A), (B), (C
2533) Propylene-based thermoplastic elastomer (Vistamaxx)TM6202) Ethylene propylene diene monomer (Nordel)TMIP3760P), an anti-wear agent, zinc oxide, zinc stearate, stearic acid and talcum powder are put into an internal mixer for mixing, the material is stirred once every 3 ℃ after the temperature is raised to 105-plus-115 ℃, the temperature is raised to 115-plus-125 ℃ within 10min, then organic peroxide and azodicarbonamide are added, the mixing is continued for 2-3min, the material is stirred once every 2 ℃ when the temperature is raised to 125-plus-135 ℃, and the material is discharged;
(2) transferring the discharged materials to a roller open mill at the temperature of 115-120 ℃, wherein the roller distance is 10-12mm, mixing the materials for 1-2 times in a triangular bag mode, mixing the materials for 1 time at the roller distance of 1mm, transferring the materials to a granulator, controlling the temperature of a die head to be 125-135 ℃, and granulating to obtain granules;
(3) and putting the granules into an injection machine, setting the temperature of the four sections of a spray gun to be 95 +/-5 ℃, 105 +/-5 ℃, 120 +/-5 ℃, 125 +/-5 ℃ and the injection pressure of the spray gun to be 5-12MPa, injecting the granules into a mold with the mold cavity thickness of 2-15mm and the mold pressing temperature of 8-12MPa and the temperature of 160-195 ℃, and heating for 200-450s to obtain the ionic/covalent crosslinking foaming high-elastic wear-resistant ultra-light sports sole material taking polyether block amide as the matrix.
The performance test results of the ionic/covalent crosslinked foamed high-elastic wear-resistant ultralight sports shoe sole material with polyether block amide as the matrix prepared in examples 1-6 are shown in Table 2.
Table 2 properties of the materials of examples 1-6
| Examples | 1 | 2 | 3 | 4 | 5 | 6 |
| Relative density (g/cm)3) | 0.14 | 0.14 | 0.12 | 0.15 | 0.15 | 0.13 |
| Hardness (Shore C) | 50 | 55 | 46 | 51 | 52 | 50 |
| Tensile Strength (MPa) | 3.6 | 3.4 | 4.3 | 3.8 | 4.0 | 4.2 |
| Elongation at Break (%) | 345 | 374 | 312 | 320 | 325 | 310 |
| Tear Strength (N/mm) | 4.4 | 4.8 | 4.3 | 4.4 | 4.6 | 4.5 |
| Compression set (%) | 34 | 32 | 35 | 33 | 34 | 33 |
| Rebound resilience (%) | 56 | 61 | 63 | 62 | 56 | 60 |
| DIN abrasion (mm)3) | 190 | 160 | 195 | 170 | 171 | 182 |
As can be seen from Table 2, the performance test effect on the sole material is as follows: when the hardness is 45-55 Shore C, the relative density is not more than 0.15g/cm3The rebound resilience is 56-63 percent, and the DIN abrasion resistance is not more than 200mm3The tensile strength is 3.4-4.3M Pa, the elongation at break is not less than 220%, the trouser tear strength is not less than 4.0N/mm, and the compression set is not more than 35%. The material completely meets the application requirements of the cross-linked foamed sports shoe sole material, and simultaneously realizes the ultralight, high elasticity and wear resistance of the sports shoe sole material.
Example 7
The ionic/covalent crosslinking foaming high-elasticity wear-resistant ultralight sports shoe sole material with polyether block amide as a matrix comprises the following components in parts by mass:
the preparation method comprises the following steps:
(1) adding polyether block amide, an allyl thermoplastic elastomer, ethylene propylene diene monomer, an anti-wear agent, zinc oxide, stearic acid, zinc stearate and talcum powder into an internal mixer for mixing, stirring once every 2 ℃ after the temperature is raised to 105 ℃, raising the temperature to 115 ℃ within 10min, then adding organic peroxide and azodicarbonamide, continuing mixing for 2min, stirring once every 2 ℃ when the temperature is raised, and discharging when the temperature is raised to 125 ℃;
(2) transferring the discharged materials to a roller mill at 115 ℃, wherein the roller spacing is 10-mm, mixing the materials in a triangular bag mode for 2 times, mixing the materials with a roller spacing of 1mm for 1 time, transferring the materials to a granulator, controlling the temperature of a die head to be 120 ℃, and granulating to obtain granules with the length diameter of 2-4 mm;
(3) and putting the granules into an injection machine, setting the four-section temperature of an injection gun to be 90 ℃, 100 ℃, 110 ℃, 100 ℃ and the injection pressure of the injection gun to be 5MPa, injecting the granules into a die with the die cavity thickness of 2mm and the die pressing pressure of 8MPa and the temperature of 160 ℃, and heating for 200s to obtain the ionic/covalent crosslinking foaming high-elastic wear-resistant ultralight sports sole material with polyether block amide as the matrix.
Example 8
The ionic/covalent crosslinking foaming high-elasticity wear-resistant ultralight sports shoe sole material with polyether block amide as a matrix comprises the following components in parts by mass:
the preparation method comprises the following steps:
(1) adding polyether block amide, an allyl thermoplastic elastomer, ethylene propylene diene monomer, an anti-wear agent, zinc oxide, stearic acid, zinc stearate and talcum powder into an internal mixer for mixing, stirring once every 3 ℃ after the temperature is raised to 115 ℃, raising the temperature to 125 ℃ within 10min, then adding organic peroxide and azodicarbonamide, continuing mixing for 3min, stirring once every 2 ℃ when the temperature is raised, and discharging when the temperature is raised to 135 ℃;
(2) transferring the discharged materials to a roller mill at 120 ℃, wherein the roller distance is 12mm, mixing the materials in a triangular bag mode for 1 time, mixing the materials at the roller distance of 1mm for 1 time, transferring the materials to a granulator, controlling the temperature of a die head to be 125 ℃, and granulating to obtain granules with the length diameter of 2-4 mm;
(3) and putting the granules into an injection machine, setting the four-section temperature of an injection gun to be 95 ℃, 105 ℃, 115 ℃ and 105 ℃ respectively, setting the injection pressure of the injection gun to be 8MPa, injecting the granules into a mold with the mold cavity thickness of 8mm and the mold pressing pressure of 10MPa and the temperature of 175 ℃, and heating for 325s to obtain the ionic/covalent crosslinking foaming high-elastic wear-resistant ultralight sports sole material with polyether block amide as the matrix.
Example 9
The ionic/covalent crosslinking foaming high-elasticity wear-resistant ultralight sports shoe sole material with polyether block amide as a matrix comprises the following components in parts by mass:
the preparation method comprises the following steps:
(1) adding polyether block amide, an allyl thermoplastic elastomer, ethylene propylene diene monomer, an anti-wear agent, zinc oxide, stearic acid, zinc stearate and talcum powder into an internal mixer for mixing, stirring once every 2.5 ℃ after the temperature is increased to 110 ℃, increasing the temperature to 120 ℃ within 10min, then adding organic peroxide and azodicarbonamide, continuing mixing for 2min, stirring once every 2 ℃ when the temperature is increased, and discharging when the temperature is increased to 130 ℃;
(2) transferring the discharged materials to a roller mill at 118 ℃, wherein the roller distance is 12mm, mixing the materials in a triangular bag mode for 1 time, mixing the materials with the roller distance of 1mm for 1 time, transferring the materials to a granulator, controlling the temperature of a die head to be 123 ℃, and granulating to obtain granules with the length diameter of 2-4 mm;
(3) and putting the granules into an injection machine, setting the four-section temperature of an injection gun to be 100 ℃, 110 ℃, 120 ℃, 110 ℃ and the injection pressure of the injection gun to be 12MPa, injecting the granules into a mold with the mold cavity thickness of 15mm and the mold pressing pressure of 12MPa and the temperature of 195 ℃, and heating for 450s to obtain the ionic/covalent crosslinking foaming high-elastic wear-resistant ultralight sports sole material with polyether block amide as the matrix.
Claims (4)
1. The ionic/covalent crosslinking foaming high-elasticity wear-resistant ultralight sports shoe sole material with polyether block amide as a matrix is characterized by being prepared from the following components in parts by mass:
55-75 parts of polyether block amide;
8-25 parts of a propylene-based thermoplastic elastomer;
8-25 parts of ethylene propylene diene monomer;
3-10 parts of a wear-resisting agent;
0.6-1.5 parts of organic peroxide;
1.8-4.0 parts of azodicarbonamide;
0.5-5 parts of zinc oxide;
0.5-1 part of stearic acid;
0.5-1 part of zinc stearate;
5-15 parts of talcum powder;
the organic peroxide is one of dicumyl peroxide, di-tert-butyldiisopropylbenzene, di-tert-butyl oxide, tert-butyl cumyl peroxide or tert-butyl hydroperoxide, or a mixture of the dicumyl peroxide, the di-tert-butyldiisopropylbenzene, the di-tert-butyl oxide, the tert-butyl cumyl peroxide or the tert-butyl hydroperoxide in any proportion;
the polyether block amide is Pebax 2533 made by Arkema France, and the propylene-based thermoplastic elastomer is Vistamaxx made by Exxon MobilTM6202, the ethylene propylene diene monomer is Nordel of Dow chemical company in AmericaTM IP 3760P。
2. The ionic/covalent crosslinked foamed high-elastic abrasion-resistant ultralight sports shoe sole material with polyether block amide as matrix according to claim 1, characterized in that the density of the sports shoe sole material is 0.12-0.15 g/cm3。
3. The method for preparing the ionic/covalent crosslinked foamed high-elastic wear-resistant ultralight sports shoe sole material with the polyether block amide as the matrix according to claim 1, is characterized by comprising the following steps:
(1) adding polyether block amide, an allyl thermoplastic elastomer, ethylene propylene diene monomer, an anti-wear agent, zinc oxide, stearic acid, zinc stearate and talcum powder into an internal mixer for mixing, after the temperature is raised to 105-plus-material 115 ℃, turning the materials once every 2-3 ℃, raising the temperature to 115-plus-material 125 ℃ within 10min, then adding organic peroxide and azodicarbonamide, continuing mixing for 2-3min, turning the materials once every 2 ℃ when the temperature is raised, and discharging when the temperature is raised to 125-plus-material 135 ℃;
(2) transferring the discharged materials to a roller open mill at the temperature of 115-120 ℃, wherein the roller distance is 10-12mm, mixing the materials for 1-2 times in a triangular bag mode, mixing the materials for 1 time at the roller distance of 1mm, transferring the materials to a granulator, controlling the temperature of a die head to be 125 ℃, and granulating to obtain granules;
(3) and putting the granules into an injection machine, setting the temperature of the four sections of a spray gun to be 95 +/-5 ℃, 105 +/-5 ℃, 115 +/-5 ℃ and 105 +/-5 ℃, setting the injection pressure of the spray gun to be 5-12MPa, injecting the granules into a mold with the mold cavity thickness of 2-15mm and the mold pressing temperature of 8-12MPa and the temperature of 160-195 ℃, and heating for 200-450s to obtain the ionic/covalent crosslinking foaming high-elastic wear-resistant ultra-light sports sole material taking polyether block amide as the matrix.
4. The method for preparing the ionic/covalent crosslinking foaming high-elastic wear-resistant ultralight sports shoe sole material with the polyether block amide as the matrix according to claim 3 is characterized in that: in the step (3), the obtained sports sole material has the density of 0.12-0.15 g/cm3。
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| CN109943079A (en) * | 2019-03-18 | 2019-06-28 | 军事科学院系统工程研究院军需工程技术研究所 | A kind of polyamide elastomer foamed material and preparation method thereof |
| CN111040420A (en) * | 2019-09-04 | 2020-04-21 | 晋江兴迅新材料科技有限公司 | Method for preparing TPV (thermoplastic vulcanizate) foam material from PEBAX (polyethylene-ethylene-butylene-styrene copolymer) and TPV foam material |
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