CN114591574B - Light wear-resistant sole material and preparation method thereof - Google Patents
Light wear-resistant sole material and preparation method thereof Download PDFInfo
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- CN114591574B CN114591574B CN202210376432.7A CN202210376432A CN114591574B CN 114591574 B CN114591574 B CN 114591574B CN 202210376432 A CN202210376432 A CN 202210376432A CN 114591574 B CN114591574 B CN 114591574B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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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
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention relates to a light wear-resistant sole material and a preparation method thereof, wherein the light wear-resistant sole material comprises the following raw materials in parts by weight: 55-75 parts of ethylene propylene diene monomer rubber, 10-15 parts of ultra-high molecular weight polyethylene, 25-35 parts of wear-resistant filler, 10-20 parts of reinforcing agent, 0.5-1.5 parts of stearic acid, 1-3 parts of zinc stearate, 0.5-2 parts of anti-aging agent and 1-3 parts of vulcanizing agent; the wear-resistant filler is added, so that the excellent wear-resistant performance is given to the sole material on the premise of not affecting the weight of the sole material, and the sole material is a carbon-bonded carbon composite material filled and modified alumina porous ceramic material.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a light wear-resistant sole material and a preparation method thereof.
Background
Shoes are a necessity for people's daily life. With the development of technology and technology, the living standard of people is improved, and the requirements of people on the quality and the performance of shoes are also higher and higher. Although the appearance of shoes on the market is comfortable and beautiful, the shoes often cannot meet the needs of people in some performance aspects, such as wear resistance, impact resistance, slip resistance and the like of soles.
The sole materials on the market at present comprise TPR, PU, rubber, EVA and the like; the TPR thermoplastic rubber has the mechanical elasticity of the traditional rubber and the processability of thermoplastic plastic, and has the lowest price, but has heavy material, poor abrasion and poor impact resistance; the PU bottom has high hardness, good wear resistance and good elasticity, but has high price and is easy to break; the EVA bottom is light and has good elasticity, good shock resistance, but poor wear resistance; the rubber is used for the soles of various shoes, and has good wear resistance and good skid resistance. However, the abrasion resistance and impact resistance of natural rubber are poor, and the requirement of military shoes for long-term outdoor use cannot be met.
Disclosure of Invention
In order to solve the technical problems, the invention provides a light wear-resistant sole material and a preparation method thereof.
The aim of the invention can be achieved by the following technical scheme:
a light wear-resistant sole material comprises the following raw materials in parts by weight: 55-75 parts of ethylene propylene diene monomer, 10-15 parts of ultra-high molecular weight polyethylene, 25-35 parts of wear-resistant filler, 10-20 parts of reinforcing agent, 0.5-1.5 parts of stearic acid, 1-3 parts of zinc stearate, 0.5-2 parts of anti-aging agent and 1-3 parts of vulcanizing agent.
The wear-resistant filler is prepared by the following steps:
s1, adding aluminum powder into 2-3.5% potassium dichromate aqueous solution, magnetically stirring for 8 hours to prepare slurry, then adding sodium dodecyl sulfate, stirring for 10 hours at a rotating speed of 500-600r/min to form foam slurry for standby, and controlling the weight ratio of the aluminum powder, the potassium dichromate aqueous solution and the sodium dodecyl sulfate to be 4-4.5:10:0.10-0.12.
In the step S1, the potassium dichromate aqueous solution is used as a solvent, a layer of uniform chromium-rich protective film is generated on the surfaces of aluminum particles by the potassium dichromate, hydrogen can be effectively prevented from being generated by the reaction of water and aluminum, the surfaces of the aluminum powder are contacted with oxygen to form an aluminum oxide film, sodium dodecyl sulfate is added to partially modify the aluminum oxide to carry out hydrophobic treatment, and then the aluminum oxide film is stirred at a high speed to form foam slurry.
S2, adding the short viscose carbon fiber and the phenolic resin into water, stirring at a high speed for 60min to prepare slurry, then injecting the slurry into a die, applying pressure to extrude the water, maintaining the pressure for 30min to form a green body, drying the green body at 75 ℃ for 24h, then sequentially preserving heat at 150 ℃ for 1h and preserving heat at 180 ℃ for 5h, grinding into powder, and preparing the carbon composite material, wherein the weight ratio of the short viscose carbon fiber to the phenolic resin to the water is 50-65:10-12:100.
In the step S2, the short viscose carbon fiber and the phenolic resin are used as raw materials to prepare slurry, the slurry is prepared into blanks under the action of pressure, and then the blanks are subjected to sectional drying to prepare the carbon composite material.
And S3, adding the carbon composite material into the foam slurry, then adopting negative pressure impregnation, filling the carbon composite material into pores of the foam slurry to form mixed slurry, drying the mixed slurry at 75 ℃ until the solvent is removed, then cracking the mixed slurry in a tube furnace at 1200 ℃ for 2 hours under the protection of nitrogen, cooling, and obtaining the wear-resistant filler, wherein the weight ratio of the carbon composite material to the foam slurry is controlled to be 3-5:30.
And in the step S3, the prepared carbon composite material is filled into foam slurry, and then the foam slurry is cracked and calcined to form a wear-resistant filler, wherein the wear-resistant filler is a carbon-bonded carbon composite material filled and modified alumina porous ceramic material, and when the wear-resistant filler is used as the filler, firstly, the alumina ceramic material can be used as an excellent wear-resistant filler, but the weight can be increased when the alumina ceramic material is used for preparing insoles, and the alumina ceramic is made into a porous structure, so that the weight is reduced, but the wear-resistant effect is reduced, so that the carbon-bonded carbon composite material modified alumina porous ceramic filler is introduced, the self weight is reduced while the excellent wear resistance of the alumina ceramic material is ensured, and the wear-resistant ceramic material is convenient to use.
Further: the ultra-high molecular weight polyethylene is oxidized with chromic acid for 3-5min at 83-85deg.C before use.
Further: the reinforcing agent is any one of carbon black E250G, N110 and N234.
Further: the anti-aging agent is any one of an anti-aging agent AW, an anti-aging agent RD and an anti-aging agent D, and the vulcanizing agent is sulfur.
A preparation method of a light wear-resistant sole material comprises the following steps:
firstly, uniformly mixing ethylene propylene diene monomer, ultra-high molecular weight polyethylene, wear-resistant filler and reinforcing agent, pouring into an internal mixer, and banburying for 10min at 100-110 ℃;
secondly, adding stearic acid, zinc stearate and an anti-aging agent, heating to 120-130 ℃, continuously mixing for 10-15min to obtain a mixed rubber, heating to 150-160 ℃, adding a vulcanizing agent, vulcanizing for 5-8min, melting, granulating after vulcanization, and performing compression molding to obtain the wear-resistant sole material.
The invention has the beneficial effects that:
according to the lightweight wear-resistant sole material, ethylene propylene diene monomer and ultra-high molecular weight polyethylene are used as matrixes, wear-resistant filler is added, excellent wear resistance is given to the sole material on the premise that the weight of the sole material is not affected, the prepared carbon composite material is filled into foam slurry in the preparation process, and then cracking and calcining are carried out to form the wear-resistant filler, the wear-resistant sole material is a carbon-bonded carbon composite material filled and modified alumina porous ceramic material, when the wear-resistant sole material is used as the filler, the alumina ceramic material can be used as the excellent wear-resistant filler, but the weight is increased when the wear-resistant sole material is used for preparing insoles, the alumina ceramic is made into a porous structure, the weight is reduced, but the wear-resistant effect is reduced, and the alumina porous ceramic filler modified by the carbon-bonded carbon composite material is introduced, so that the sole material has excellent wear resistance and the weight is reduced, and is convenient to use.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The wear-resistant filler is prepared by the following steps:
s1, adding aluminum powder into a potassium dichromate aqueous solution with the concentration of 2%, magnetically stirring for 8 hours to obtain slurry, then adding sodium dodecyl sulfate, stirring at the rotating speed of 500r/min for 10 hours to form foam slurry for standby, and controlling the weight ratio of the aluminum powder, the potassium dichromate aqueous solution and the sodium dodecyl sulfate to be 4:10:0.10;
s2, adding short viscose carbon fiber and phenolic resin into water, stirring at a high speed for 60min to obtain slurry, then injecting the slurry into a die, applying pressure to extrude the water to the die, maintaining the pressure for 30min to form a green body, drying the green body at 75 ℃ for 24h, sequentially preserving heat at 150 ℃ for 1h and 180 ℃ for 5h, grinding into powder, and obtaining a carbon composite material, wherein the weight ratio of the short viscose carbon fiber to the phenolic resin to the water is 50:10:100;
and S3, adding the carbon composite material into the foam slurry, then adopting negative pressure impregnation, filling the carbon composite material into pores of the foam slurry to form mixed slurry, drying the mixed slurry at 75 ℃ until the solvent is removed, then cracking the mixed slurry in a tube furnace at 1200 ℃ for 2 hours under the protection of nitrogen, cooling, and obtaining the wear-resistant filler, wherein the weight ratio of the carbon composite material to the foam slurry is controlled to be 3:30.
Example 2
The wear-resistant filler is prepared by the following steps:
s1, adding aluminum powder into a potassium dichromate aqueous solution with the concentration of 2.5%, magnetically stirring for 8 hours to obtain slurry, then adding sodium dodecyl sulfate, stirring at the rotating speed of 550r/min for 10 hours to form foam slurry for standby, and controlling the weight ratio of the aluminum powder, the potassium dichromate aqueous solution and the sodium dodecyl sulfate to be 4.2:10:0.11;
s2, adding short viscose carbon fiber and phenolic resin into water, stirring at a high speed for 60min to obtain slurry, then injecting the slurry into a die, applying pressure to extrude the water to the die, maintaining the pressure for 30min to form a green body, drying the green body at 75 ℃ for 24h, sequentially preserving heat at 150 ℃ for 1h and 180 ℃ for 5h, grinding into powder, and obtaining a carbon composite material, wherein the weight ratio of the short viscose carbon fiber to the phenolic resin to the water is controlled to be 60:12:100;
and S3, adding the carbon composite material into the foam slurry, then adopting negative pressure impregnation, filling the carbon composite material into pores of the foam slurry to form mixed slurry, drying the mixed slurry at 75 ℃ until the solvent is removed, then cracking the mixed slurry in a tube furnace at 1200 ℃ for 2 hours under the protection of nitrogen, cooling, and obtaining the wear-resistant filler, wherein the weight ratio of the carbon composite material to the foam slurry is controlled to be 4:30.
Example 3
The wear-resistant filler is prepared by the following steps:
s1, adding aluminum powder into a potassium dichromate aqueous solution with the concentration of 3.5%, magnetically stirring for 8 hours to obtain slurry, then adding sodium dodecyl sulfate, stirring at the rotating speed of 600r/min for 10 hours to form foam slurry for standby, and controlling the weight ratio of the aluminum powder, the potassium dichromate aqueous solution and the sodium dodecyl sulfate to be 4.5:10:0.12;
s2, adding short viscose carbon fiber and phenolic resin into water, stirring at a high speed for 60min to obtain slurry, then injecting the slurry into a die, applying pressure to extrude the water to the die, maintaining the pressure for 30min to form a green body, drying the green body at 75 ℃ for 24h, sequentially preserving heat at 150 ℃ for 1h and 180 ℃ for 5h, grinding into powder, and obtaining a carbon composite material, wherein the weight ratio of the short viscose carbon fiber to the phenolic resin to the water is controlled to be 65:12:100;
and S3, adding the carbon composite material into the foam slurry, then adopting negative pressure impregnation, filling the carbon composite material into pores of the foam slurry to form mixed slurry, drying the mixed slurry at 75 ℃ until the solvent is removed, then cracking the mixed slurry in a tube furnace at 1200 ℃ for 2 hours under the protection of nitrogen, cooling, and obtaining the wear-resistant filler, wherein the weight ratio of the carbon composite material to the foam slurry is controlled to be 5:30.
Example 4
A light wear-resistant sole material comprises the following raw materials in parts by weight: 55 parts of ethylene propylene diene monomer, 10 parts of ultra-high molecular weight polyethylene, 25 parts of wear-resistant filler, 10 parts of carbon black E250G,0.5 part of stearic acid, 1 part of zinc stearate, 0.5 part of antioxidant AW and 1 part of sulfur;
firstly, uniformly mixing ethylene propylene diene monomer, ultra-high molecular weight polyethylene, wear-resistant filler and carbon black E250G, and then pouring into an internal mixer, and banburying for 10min at 100 ℃;
secondly, adding stearic acid, zinc stearate and an anti-aging agent AW, heating to 120 ℃, continuously mixing for 10min to obtain a rubber compound, heating to 150 ℃, adding sulfur, vulcanizing for 5min, melting, granulating and compression molding after vulcanization is finished to obtain the wear-resistant sole material.
The ultra-high molecular weight polyethylene was oxidized with chromic acid at 83 ℃ for 3min before use.
Example 5
A light wear-resistant sole material comprises the following raw materials in parts by weight: 65 parts of ethylene propylene diene monomer, 12 parts of ultra-high molecular weight polyethylene, 30 parts of wear-resistant filler, 15 parts of carbon black E250G,1 part of stearic acid, 2 parts of zinc stearate, 1.5 parts of an anti-aging agent AW and 2 parts of sulfur;
firstly, uniformly mixing ethylene propylene diene monomer, ultra-high molecular weight polyethylene, wear-resistant filler and carbon black E250G, and then pouring into an internal mixer, and banburying for 10min at 110 ℃;
secondly, adding stearic acid, zinc stearate and an anti-aging agent AW, heating to 120 ℃, continuously mixing for 12min to obtain a rubber compound, heating to 160 ℃, adding sulfur, vulcanizing for 6min, melting, granulating and compression molding after vulcanization is finished to obtain the wear-resistant sole material.
The ultra-high molecular weight polyethylene was oxidized with chromic acid for 4min at 83 ℃ before use.
Example 6
A light wear-resistant sole material comprises the following raw materials in parts by weight: 75 parts of ethylene propylene diene monomer, 15 parts of ultra-high molecular weight polyethylene, 35 parts of wear-resistant filler, 20 parts of carbon black E250G,1.5 parts of stearic acid, 3 parts of zinc stearate, 2 parts of an anti-aging agent AW and 3 parts of sulfur;
firstly, uniformly mixing ethylene propylene diene monomer, ultra-high molecular weight polyethylene, wear-resistant filler and carbon black E250G, and then pouring into an internal mixer, and banburying for 10min at 110 ℃;
secondly, adding stearic acid, zinc stearate and an anti-aging agent AW, heating to 130 ℃, continuously mixing for 15min to obtain a rubber compound, heating to 160 ℃, adding sulfur, vulcanizing for 8min, melting, granulating and molding after vulcanization is finished, and obtaining the wear-resistant sole material.
The ultra-high molecular weight polyethylene was oxidized with chromic acid at 85 ℃ for 5min before use.
Comparative example 1
In this comparative example, nano alumina ceramic was used as the abrasion-resistant filler as compared with example 4.
Comparative example 2
This comparative example is a wear resistant sole material produced by a commercial company.
The sole materials prepared in examples 4 to 6 and comparative examples 1 to 2 were examined for properties, and the results are shown in the following table:
from the above table, it can be seen that the sole materials prepared in examples 4 to 6 have excellent wear resistance and mechanical properties.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (6)
1. A lightweight wear resistant sole material characterized by: comprises the following raw materials in parts by weight: 55-75 parts of ethylene propylene diene monomer rubber, 10-15 parts of ultra-high molecular weight polyethylene, 25-35 parts of wear-resistant filler, 10-20 parts of reinforcing agent, 0.5-1.5 parts of stearic acid, 1-3 parts of zinc stearate, 0.5-2 parts of anti-aging agent and 1-3 parts of vulcanizing agent;
the wear-resistant filler is prepared by the following steps:
s1, adding aluminum powder into 2-3.5% potassium dichromate aqueous solution, magnetically stirring for 8 hours to prepare slurry, then adding sodium dodecyl sulfate, and stirring for 10 hours at a rotating speed of 500-600r/min to form foam slurry for later use;
s2, adding short viscose carbon fiber and phenolic resin into water, stirring at a high speed for 60min to obtain slurry, then injecting the slurry into a die, applying pressure to extrude the water out of the die, maintaining the pressure for 30min to form a green body, drying the green body at 75 ℃ for 24h, then sequentially preserving heat at 150 ℃ for 1h and 180 ℃ for 5h, and grinding into powder to obtain a carbon composite material;
and S3, adding the carbon composite material into the foam slurry, then adopting negative pressure impregnation, filling the carbon composite material into pores of the foam slurry to form mixed slurry, drying the mixed slurry at 75 ℃ until the solvent is removed, then cracking the mixed slurry in a tube furnace at 1200 ℃ for 2 hours under the protection of nitrogen, and cooling to obtain the wear-resistant filler.
2. A lightweight wear resistant sole material as in claim 1, wherein: the ultra-high molecular weight polyethylene is oxidized with chromic acid for 3-5min at 83-85deg.C before use.
3. A lightweight wear resistant sole material as in claim 1, wherein: the reinforcing agent is any one of carbon black E250G, N110 and N234.
4. A lightweight wear resistant sole material as in claim 1, wherein: the anti-aging agent is any one of an anti-aging agent AW, an anti-aging agent RD and an anti-aging agent D, and the vulcanizing agent is sulfur.
5. A lightweight wear resistant sole material as in claim 1, wherein: in the step S1, the weight ratio of aluminum powder, potassium dichromate aqueous solution and sodium dodecyl sulfate is controlled to be 4-4.5:10:0.10-0.12, in the step S2, the weight ratio of short viscose carbon fiber, phenolic resin and water is controlled to be 50-65:10-12:100, and in the step S3, the weight ratio of carbon composite material and foam slurry is controlled to be 3-5:30.
6. The method for preparing the light wear-resistant sole material according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
firstly, uniformly mixing ethylene propylene diene monomer, ultra-high molecular weight polyethylene, wear-resistant filler and reinforcing agent, pouring into an internal mixer, and banburying for 10min at 100-110 ℃;
secondly, adding stearic acid, zinc stearate and an anti-aging agent, heating to 120-130 ℃, continuously mixing for 10-15min to obtain a mixed rubber, heating to 150-160 ℃, adding a vulcanizing agent, vulcanizing for 5-8min, melting, granulating after vulcanization, and performing compression molding to obtain the wear-resistant sole material.
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