High air permeability sports shoes and preparation method thereof
By combining modified polyvinylidene fluoride and modified melamine foam, a porous sole structure is formed, which solves the problems of insufficient breathability and mechanical strength in existing running shoes, and achieves sports shoes with high breathability and wear resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MINGZHI SPORTS GOODS (CHINA) CO LTD
- Filing Date
- 2026-03-18
- Publication Date
- 2026-06-23
AI Technical Summary
Existing running shoes have shortcomings in breathability, mechanical strength, and synergistic improvement of multiple performance aspects. In particular, the airflow guidance and heat dissipation efficiency of the sole are limited, and there is a contradiction between grip and wear resistance in the design of the abrasion layer.
The sole is made of a combination of materials such as polyurethane, polyoxyethylene ether, styrene-butadiene rubber, modified polyvinylidene fluoride, and modified melamine foam. It is formed by electrospinning and carbonization to create a porous structure. The modified melamine foam is used as an elastic matrix to enhance breathability and mechanical strength.
While achieving highly breathable athletic shoes, it maintains good mechanical strength and comfort, improves the breathability and wear resistance of the sole, and enhances airflow guidance and heat dissipation efficiency.
Smart Images
Figure CN122255707A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of footwear, specifically to a highly breathable athletic shoe and its manufacturing method. Background Technology
[0002] As an important piece of sports equipment, running shoes directly affect athletes' performance and health. Existing running shoes usually focus on a single performance aspect, but it is difficult to achieve breakthroughs in the synergistic improvement of multiple performance aspects. For example, the breathability of running shoes largely depends on the mesh material of the upper itself, and the sole lacks active guidance of airflow direction, resulting in limited heat dissipation efficiency. Reinforcing the toe and heel often comes at the cost of lightweight and flexibility; the abrasion-resistant layer of the sole is usually a flat design, which creates a conflict between grip and abrasion resistance; in response to the above-mentioned technologies, this application proposes a pressure-resistant and breathable running shoe to solve the above problems. Summary of the Invention
[0003] In view of this, the purpose of the present invention is to provide a highly breathable sports shoe and its preparation method, which improves the breathability of the material while also providing good mechanical strength.
[0004] To achieve the above objectives, the present invention provides the following technical solution: A highly breathable athletic shoe includes an upper and a sole, wherein the sole comprises the following components in parts by weight: 20-30 parts polyurethane, 6-10 parts polyoxyethylene ether, 12-20 parts styrene-butadiene rubber, 5-10 parts modified polyvinylidene fluoride, 12-18 parts modified melamine foam, 1-3 parts zinc oxide, 1-2 parts vinyltrimethoxysilane, 8-10 parts diatomaceous earth, 4-8 parts calcium stearate, 5-8 parts vinyl silicone oil, and 10-15 parts ethylenediaminetetraacetic acid.
[0005] Preferably, the sole comprises the following components in parts by weight: 30 parts polyurethane, 10 parts polyoxyethylene ether, 20 parts styrene-butadiene rubber, 10 parts modified polyvinylidene fluoride, 18 parts modified melamine foam, 3 parts zinc oxide, 2 parts vinyltrimethoxysilane, 10 parts diatomaceous earth, 8 parts calcium stearate, 8 parts vinyl silicone oil, and 15 parts ethylenediaminetetraacetic acid.
[0006] A method for preparing a highly breathable sports shoe includes the following steps: mixing and kneading polyurethane, polyoxyethylene ether, styrene-butadiene rubber, modified polyvinylidene fluoride, modified melamine foam, zinc oxide, vinyltrimethoxysilane, diatomaceous earth, calcium stearate, vinyl silicone oil and ethylenediaminetetraacetic acid, and then vulcanizing and molding to obtain the sole. Assemble the above-mentioned sole, insole, and upper into a shoe to obtain a highly breathable sports shoe.
[0007] Preferably, the preparation method of the modified polyvinylidene fluoride is as follows: polyvinylidene fluoride, N,N-dimethylformamide and acetone solution are mixed, stirred at room temperature of 25°C for 12-16 hours, electrospun, and dried to obtain a fiber membrane; The fiber membrane, 10% sodium hydroxide solution, methanol, 1,4-p-phenylenediamine and nano magnesium oxide powder were mixed and stirred for 24-48 hours. After drying at 60°C, the mixture was placed in a sample boat and pushed into a tube furnace under an argon atmosphere and heated to carbonize at 800-1000°C to obtain modified polyvinylidene fluoride.
[0008] Preferably, the weight ratio of polyvinylidene fluoride, N,N-dimethylformamide and acetone solution is 1:1:3; and the weight ratio of fiber membrane, sodium hydroxide solution, methanol, 1,4-p-phenylenediamine and nano magnesium oxide powder is 1:2:4:1:1.
[0009] Preferably, the preparation method of the modified melamine foam includes the following steps: mixing titanium aluminum carbide and a hydrofluoric acid solution with a mass fraction of 20%, stirring magnetically at 35°C for 20-24 hours, then adding melamine foam, carbon nanotubes and polyvinylpyrrolidone to the above solution, and vacuum drying to obtain modified melamine foam.
[0010] Preferably, the weight ratio of the titanium aluminum carbide, hydrofluoric acid solution, melamine foam, carbon nanotubes and polyvinylpyrrolidone is 1:1:1:1:3.
[0011] Preferably, the mixing temperature is 110-115℃ and the processing time is 5-10 min; the vulcanization molding temperature is 155-165℃, the molding time is 90-100 min, and the molding pressure is 10-15 MPa.
[0012] This invention preserves the three-dimensional, breathable, porous structure of polyvinylidene fluoride (PVDF) through defluorination, crosslinking, and carbonization. The carbonized modified PVDF serves as a framework, capable of supporting other components. Furthermore, the modified melamine foam, acting as an elastic matrix, possesses high porosity and a large specific surface area. This allows it to maintain good breathability while preserving the overall strength of the components. The resulting insole, under pressure, generates a larger contact area, creating more breathable pathways. Gas molecules can easily pass through the pores of the porous mesh structure, providing the insole with excellent breathability. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of a sports shoe; Attached image labels: 1-upper part, 2-sole part. Detailed Implementation
[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In addition, it should be specifically noted that the raw materials and equipment of the present invention are all commercially available and will not be listed one by one. Among them, the raw materials of the present invention are all commercially available and well known to those skilled in the art, and will not be described in detail.
[0016] Example 1: A highly breathable athletic shoe includes an upper and a sole, wherein the sole comprises the following components in parts by weight: 30 parts polyurethane, 10 parts polyoxyethylene ether, 20 parts styrene-butadiene rubber, 10 parts modified polyvinylidene fluoride, 18 parts modified melamine foam, 3 parts zinc oxide, 2 parts vinyltrimethoxysilane, 10 parts diatomaceous earth, 8 parts calcium stearate, 8 parts vinyl silicone oil, and 15 parts ethylenediaminetetraacetic acid.
[0017] A method for preparing a highly breathable sports shoe includes the following steps: The above-mentioned parts by weight of polyurethane, polyoxyethylene ether, styrene-butadiene rubber, modified polyvinylidene fluoride, modified melamine foam, zinc oxide, vinyltrimethoxysilane, diatomaceous earth, calcium stearate, vinyl silicone oil and ethylenediaminetetraacetic acid are mixed and kneaded, and then vulcanized and molded. The kneading temperature is 115℃ and the treatment time is 10min; the vulcanization temperature is 165℃, the molding time is 100min, and the molding pressure is 15MPa to obtain the shoe sole. Assemble the above-mentioned sole, insole, and upper into a shoe to obtain a highly breathable sports shoe.
[0018] The specific preparation method of modified polyvinylidene fluoride is as follows: polyvinylidene fluoride, N,N-dimethylformamide and acetone solution are mixed in a weight ratio of 1:1:3, stirred at room temperature of 25°C for 16 hours, electrospun, dried, and fiber membrane is obtained. The fiber membrane, 10% sodium hydroxide solution, methanol, 1,4-p-phenylenediamine and nano magnesium oxide powder were mixed in a weight ratio of 1:2:4:1:1, stirred and reacted for 48 h, dried at 60 °C, and then placed in a sample boat, pushed into a tube furnace and heated at 1000 °C in an argon atmosphere to carbonize, thus obtaining modified polyvinylidene fluoride.
[0019] The preparation method of modified melamine foam includes the following steps: titanium aluminum carbide and hydrofluoric acid solution with a mass fraction of 20% are mixed and magnetically stirred at 35°C for 24 hours. Then, melamine foam, carbon nanotubes and polyvinylpyrrolidone are added to the above solution. The weight ratio of titanium aluminum carbide, hydrofluoric acid solution, melamine foam, carbon nanotubes and polyvinylpyrrolidone is 1:1:1:1:3. The mixture is then vacuum dried to obtain modified melamine foam.
[0020] Example 2: A highly breathable athletic shoe includes an upper and a sole, wherein the sole comprises the following components in parts by weight: 20 parts polyurethane, 6 parts polyoxyethylene ether, 12 parts styrene-butadiene rubber, 5 parts modified polyvinylidene fluoride, 12 parts modified melamine foam, 1 part zinc oxide, 1 part vinyltrimethoxysilane, 8 parts diatomaceous earth, 4 parts calcium stearate, 5 parts vinyl silicone oil, and 10 parts ethylenediaminetetraacetic acid.
[0021] A method for preparing a highly breathable sports shoe includes the following steps: The above-mentioned parts by weight of polyurethane, polyoxyethylene ether, styrene-butadiene rubber, modified polyvinylidene fluoride, modified melamine foam, zinc oxide, vinyltrimethoxysilane, diatomaceous earth, calcium stearate, vinyl silicone oil and ethylenediaminetetraacetic acid are mixed and kneaded, and then vulcanized and molded. The kneading temperature is 110℃ and the treatment time is 5min; the vulcanization temperature is 155℃, the molding time is 90min, and the molding pressure is 10MPa to obtain the shoe sole. Assemble the above-mentioned sole, insole, and upper into a shoe to obtain a highly breathable sports shoe.
[0022] The specific preparation method of modified polyvinylidene fluoride is as follows: polyvinylidene fluoride, N,N-dimethylformamide and acetone solution are mixed in a weight ratio of 1:1:3, stirred at room temperature of 25°C for 12 hours, electrospun, dried, and fiber membrane is obtained. A fiber membrane, a 10% sodium hydroxide solution, methanol, 1,4-p-phenylenediamine, and nano-magnesium oxide powder were mixed in a weight ratio of 1:2:4:1:1. The mixture was stirred and reacted for 24 hours, then dried at 60°C. The mixture was then placed in a sample boat and pushed into a tube furnace under an argon atmosphere and heated to 800°C for carbonization to obtain modified polyvinylidene fluoride.
[0023] The preparation method of modified melamine foam includes the following steps: titanium aluminum carbide and hydrofluoric acid solution with a mass fraction of 20% are mixed and magnetically stirred at 35°C for 20 hours. Then, melamine foam, carbon nanotubes and polyvinylpyrrolidone are added to the above solution. The weight ratio of titanium aluminum carbide, hydrofluoric acid solution, melamine foam, carbon nanotubes and polyvinylpyrrolidone is 1:1:1:1:3. The mixture is then vacuum dried to obtain modified melamine foam.
[0024] Example 3: A highly breathable athletic shoe includes an upper and a sole, wherein the sole comprises the following components in parts by weight: 25 parts polyurethane, 8 parts polyoxyethylene ether, 16 parts styrene-butadiene rubber, 8 parts modified polyvinylidene fluoride, 16 parts modified melamine foam, 2 parts zinc oxide, 1.5 parts vinyltrimethoxysilane, 9 parts diatomaceous earth, 6 parts calcium stearate, 6 parts vinyl silicone oil, and 12 parts ethylenediaminetetraacetic acid.
[0025] A method for preparing a highly breathable sports shoe includes the following steps: The above-mentioned parts by weight of polyurethane, polyoxyethylene ether, styrene-butadiene rubber, modified polyvinylidene fluoride, modified melamine foam, zinc oxide, vinyltrimethoxysilane, diatomaceous earth, calcium stearate, vinyl silicone oil and ethylenediaminetetraacetic acid are mixed and kneaded, and then vulcanized and molded. The kneading temperature is 112°C and the treatment time is 7 min; the vulcanization temperature is 160°C and the molding time is 95 min, and the molding pressure is 12 MPa to obtain the shoe sole. Assemble the above-mentioned sole, insole, and upper into a shoe to obtain a highly breathable sports shoe.
[0026] The specific preparation method of modified polyvinylidene fluoride is as follows: polyvinylidene fluoride, N,N-dimethylformamide and acetone solution are mixed in a weight ratio of 1:1:3, stirred at room temperature of 25°C for 14 hours, electrospun, dried, and fiber membrane is obtained. A fiber membrane, a 10% sodium hydroxide solution, methanol, 1,4-p-phenylenediamine, and nano-magnesium oxide powder were mixed in a weight ratio of 1:2:4:1:1. The mixture was stirred and reacted for 36 hours, then dried at 60°C. The mixture was then placed in a sample boat and pushed into a tube furnace under an argon atmosphere. The mixture was then heated and carbonized at 900°C to obtain modified polyvinylidene fluoride.
[0027] The preparation method of modified melamine foam includes the following steps: titanium aluminum carbide and hydrofluoric acid solution with a mass fraction of 20% are mixed and magnetically stirred at 35°C for 22 hours. Then, melamine foam, carbon nanotubes and polyvinylpyrrolidone are added to the above solution. The weight ratio of titanium aluminum carbide, hydrofluoric acid solution, melamine foam, carbon nanotubes and polyvinylpyrrolidone is 1:1:1:1:3. The mixture is then vacuum dried to obtain modified melamine foam.
[0028] Comparative Example 1: The preparation method of Comparative Example 1 is basically the same as that of Example 1, except that the polyvinylidene fluoride is not modified. Specifically: A highly breathable athletic shoe includes an upper and a sole, wherein the sole comprises the following components in parts by weight: 30 parts polyurethane, 10 parts polyoxyethylene ether, 20 parts styrene-butadiene rubber, 10 parts polyvinylidene fluoride, 18 parts modified melamine foam, 3 parts zinc oxide, 2 parts vinyltrimethoxysilane, 10 parts diatomaceous earth, 8 parts calcium stearate, 8 parts vinyl silicone oil, and 15 parts ethylenediaminetetraacetic acid.
[0029] A method for preparing a highly breathable sports shoe includes the following steps: The above-mentioned parts by weight of polyurethane, polyoxyethylene ether, styrene-butadiene rubber, polyvinylidene fluoride, modified melamine foam, zinc oxide, vinyltrimethoxysilane, diatomaceous earth, calcium stearate, vinyl silicone oil and ethylenediaminetetraacetic acid are mixed and kneaded, and then vulcanized and molded. The kneading temperature is 115℃ and the treatment time is 10min; the vulcanization temperature is 165℃, the molding time is 100min, and the molding pressure is 15MPa to obtain the shoe sole. Assemble the above-mentioned sole, insole, and upper into a shoe to obtain a highly breathable sports shoe.
[0030] The preparation method of modified melamine foam includes the following steps: titanium aluminum carbide and hydrofluoric acid solution with a mass fraction of 20% are mixed and magnetically stirred at 35°C for 24 hours. Then, melamine foam, carbon nanotubes and polyvinylpyrrolidone are added to the above solution. The weight ratio of titanium aluminum carbide, hydrofluoric acid solution, melamine foam, carbon nanotubes and polyvinylpyrrolidone is 1:1:1:1:3. The mixture is then vacuum dried to obtain modified melamine foam.
[0031] Comparative Example 2: Comparative Example 2 is prepared in a basically the same way as Example 1, except that polyvinylidene fluoride is not modified and modified melamine foam is not used. Specifically: A highly breathable athletic shoe includes an upper and a sole, wherein the sole comprises the following components in parts by weight: 30 parts polyurethane, 10 parts polyoxyethylene ether, 20 parts styrene-butadiene rubber, 10 parts polyvinylidene fluoride, 3 parts zinc oxide, 2 parts vinyltrimethoxysilane, 10 parts diatomaceous earth, 8 parts calcium stearate, 8 parts vinyl silicone oil, and 15 parts ethylenediaminetetraacetic acid.
[0032] A method for preparing a highly breathable sports shoe includes the following steps: The above-mentioned parts by weight of polyurethane, polyoxyethylene ether, styrene-butadiene rubber, polyvinylidene fluoride, zinc oxide, vinyltrimethoxysilane, diatomaceous earth, calcium stearate, vinyl silicone oil and ethylenediaminetetraacetic acid are mixed and kneaded, and then vulcanized and molded. The kneading temperature is 115°C and the treatment time is 10 min; the vulcanization temperature is 165°C and the molding time is 100 min, and the molding pressure is 15 MPa to obtain the shoe sole. Assemble the above-mentioned sole, insole, and upper into a shoe to obtain a highly breathable sports shoe.
[0033] The tensile strength, tear strength, and breathability of the sports shoes obtained in Examples 1-3, the commercially available shoes from Wenxian Mengjia Shoe Factory, and Comparative Examples 1-2 are tested below.
[0034] Tensile strength: Tested in accordance with GB / T528 2009 "Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber".
[0035] Tear strength: Tested in accordance with GB / T529 1999 "Determination of tear strength of vulcanized rubber or thermoplastic rubber".
[0036] Air permeability: Tested according to GB / T 5453, gas pressure 100Pa, test area 8cm².
[0037] Table 1: Test data of Examples 1-3, commercially available shoes, and shoes of Comparative Examples 1-2
[0038] As can be seen from the table above, the athletic shoes of Examples 1-3 have better mechanical properties and excellent breathability than Comparative Examples 1-2 and commercially available athletic shoes.
[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A highly breathable athletic shoe, characterized in that, The shoe includes an upper and a sole, wherein the sole comprises the following components in parts by weight: 20-30 parts polyurethane, 6-10 parts polyoxyethylene ether, 12-20 parts styrene-butadiene rubber, 5-10 parts modified polyvinylidene fluoride, 12-18 parts modified melamine foam, 1-3 parts zinc oxide, 1-2 parts vinyltrimethoxysilane, 8-10 parts diatomaceous earth, 4-8 parts calcium stearate, 5-8 parts vinyl silicone oil, and 10-15 parts ethylenediaminetetraacetic acid.
2. The highly breathable sports shoe as described in claim 1, characterized in that: The sole comprises the following components by weight: 30 parts polyurethane, 10 parts polyoxyethylene ether, 20 parts styrene-butadiene rubber, 10 parts modified polyvinylidene fluoride, 18 parts modified melamine foam, 3 parts zinc oxide, 2 parts vinyltrimethoxysilane, 10 parts diatomaceous earth, 8 parts calcium stearate, 8 parts vinyl silicone oil, and 15 parts ethylenediaminetetraacetic acid.
3. A method for preparing a highly breathable sports shoe as described in claim 1, characterized in that, Includes the following steps: Polyurethane, polyoxyethylene ether, styrene-butadiene rubber, modified polyvinylidene fluoride, modified melamine foam, zinc oxide, vinyltrimethoxysilane, diatomaceous earth, calcium stearate, vinyl silicone oil and ethylenediaminetetraacetic acid are mixed and kneaded, and then vulcanized to form the shoe sole. Assemble the above-mentioned sole, insole, and upper into a shoe to obtain a highly breathable sports shoe.
4. The method for preparing a highly breathable sports shoe as described in claim 3, characterized in that: The specific preparation method of the modified polyvinylidene fluoride is as follows: polyvinylidene fluoride, N,N-dimethylformamide and acetone solution are mixed, stirred at room temperature of 25°C for 12-16 hours, electrospun, and dried to obtain a fiber membrane. The fiber membrane, 10% sodium hydroxide solution, methanol, 1,4-p-phenylenediamine and nano magnesium oxide powder were mixed and stirred for 24-48 hours. After drying at 60°C, the mixture was placed in a sample boat and pushed into a tube furnace under an argon atmosphere and heated to carbonize at 800-1000°C to obtain modified polyvinylidene fluoride.
5. The method for preparing a highly breathable sports shoe as described in claim 4, characterized in that: The weight ratio of polyvinylidene fluoride, N,N-dimethylformamide, and acetone solution is 1:1:3; the weight ratio of fiber membrane, sodium hydroxide solution, methanol, 1,4-p-phenylenediamine, and nano-magnesium oxide powder is 1:2:4:1:
1.
6. The method for preparing a highly breathable sports shoe as described in claim 5, characterized in that, The preparation method of the modified melamine foam includes the following steps: mixing titanium aluminum carbide and a hydrofluoric acid solution with a mass fraction of 20%, stirring magnetically at 35°C for 20-24 hours, then adding melamine foam, carbon nanotubes and polyvinylpyrrolidone to the above solution, and vacuum drying to obtain modified melamine foam.
7. The method for preparing a highly breathable sports shoe as described in claim 6, characterized in that: The weight ratio of titanium aluminum carbide, hydrofluoric acid solution, melamine foam, carbon nanotubes and polyvinylpyrrolidone is 1:1:1:1:
3.
8. The method for preparing a highly breathable sports shoe as described in claim 3, characterized in that: The mixing temperature is 110-115℃, and the processing time is 5-10 min; the vulcanization molding temperature is 155-165℃, the molding time is 90-100 min, and the molding pressure is 10-15 MPa.