Elastic sports shoes with high-resilience multi-dimensional supporting soles

Abstract

The invention provides an elastic sneaker with a high-resilience multi-dimensional supporting sole, and relates to the technical field of sneakers. The elastic sports shoe with the high-resilience multi-dimensional supporting sole comprises a sole body and a vamp, and the sole body sequentially comprises an upper surface layer, a resilience layer, a supporting layer and a bottom layer from top to bottom. The rebound layer comprises the following components in parts by weight: 50-80 parts of natural rubber, 10-30 parts of thermoplastic polyurethane, 10-20 parts of carbon fiber powder, 5-10 parts of nano silicon dioxide, 5-10 parts of microspheres, 10-20 parts of calcium carbonate, 3-5 parts of a cross-linking agent, 10-20 parts of filler and 10-20 parts of an auxiliary agent. By adding high-performance materials such as the thermoplastic polyurethane, the carbon fiber powder, the microspheres and the nano silicon dioxide, the sole has excellent rebound resilience and supporting performance, the impact force and fatigue feeling during sports can be effectively relieved, and the sports performance is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sports shoes, in particular to an elastic sports shoe with a high-resilience multi-dimensional support sole. Background Art

[0002] Shoes are worn on the feet to protect the feet and facilitate walking. Made of leather, cloth, rubber and other materials, shoes are a tool for people to protect their feet from injury. In order to overcome special situations and prevent their feet from being uncomfortable or injured, people first invented fur shoes. Shoes of various styles and functions can be seen everywhere. There are many categories of shoes, among which sports shoes are one of the categories of shoes. Sports shoes are designed and manufactured according to the characteristics of people participating in sports or traveling. The soles of sports shoes are different from ordinary leather shoes and rubber shoes. They are generally soft and elastic, and can play a certain buffering role. They can enhance elasticity during exercise, and some can also prevent ankle injuries. Therefore, when doing sports, most people have to wear sports shoes, especially high-intensity physical sports, such as basketball, running, etc.

[0003] Existing sports shoes include elastic sports shoes. Generally, the material of elastic sports shoes has a certain elasticity and can effectively cooperate with sports cushioning. However, the elasticity of the soles of some elastic sports shoes is poor. When faced with high elasticity requirements, the actual use effect of the elastic sports shoes cannot be achieved.

[0004] Secondly, the invention patent application with application publication number CN102850604A discloses a wear-resistant sole material, which is made of the following raw materials in weight proportion: 80-85 parts of natural rubber, 40-50 parts of triethanolamine, 23-30 parts of white carbon black, 13-16 parts of oil-extended TPE, 6-8 parts of dipropylene glycol, 7 parts of dicumyl peroxide, 3-6 parts of plasticizer DOP and 7-8 parts of pentane. The sole material has good waterproofness and wear resistance. However, using the above sole material as the sole material of sports shoes often makes the wearer feel bulky, and the resilience is insufficient during exercise, which greatly affects the wearer's actions. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides an elastic sports shoe with a high-resilience multi-dimensional support sole, which solves the problems raised by the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an elastic sports shoe with a high-rebound multi-dimensional support sole, comprising a sole body and an upper, wherein the sole body comprises an upper surface layer, a rebound layer, a support layer and a bottom layer from top to bottom;

[0009] The resilient layer comprises the following components in parts by weight: 50-80 parts of natural rubber, 10-30 parts of thermoplastic polyurethane, 10-20 parts of carbon fiber powder, 5-10 parts of nano silicon dioxide, 5-10 parts of microspheres, 10-20 parts of calcium carbonate, 3-5 parts of crosslinking agent, 10-20 parts of filler and 10-20 parts of auxiliary agent.

[0010] Preferably, the resilience layer comprises the following components in parts by weight: 70 parts of natural rubber, 20 parts of thermoplastic polyurethane, 15 parts of carbon fiber powder, 8 parts of nano-silicon dioxide, 8 parts of microspheres, 15 parts of calcium carbonate, 4 parts of cross-linking agent, 15 parts of filler, and 15 parts of additives.

[0011] Preferably, the microsphere has a hollow structure, the interior of which is filled with an inert gas or air, and the exterior is wrapped with a layer of elastic polymer; the diameter of the microsphere is 50-200 microns.

[0012] Preferably, the filler comprises the following components in parts by weight: 2-4 parts of mica powder, 2-4 parts of quartz powder, 2-4 parts of asbestos powder, 2-4 parts of alumina powder, and 2-4 parts of carbon black.

[0013] Preferably, the auxiliary agent includes the following components in parts by weight: 2-4 parts of vulcanizing agent, 2-4 parts of accelerator, 2-4 parts of antioxidant, 2-4 parts of antioxidant, and 2-4 parts of foaming agent.

[0014] Preferably, the vulcanizing agent is sulfur, the accelerator is diphenylguanidine, the antioxidant is p-phenylenediamine, the antioxidant is a hindered phenol antioxidant, and the foaming agent is azodicarbonamide.

[0015] The present invention further discloses a method for preparing a sole body, comprising the following steps:

[0016] Step 1: Prepare the ingredients:

[0017] Weigh natural rubber, thermoplastic polyurethane, carbon fiber powder, nano-silicon dioxide, microspheres, calcium carbonate, a cross-linking agent, a filler and an additive according to weight;

[0018] Step 2: Mixing process:

[0019] The natural rubber was put into an internal mixer for plasticization, and then thermoplastic polyurethane, nano-silica, calcium carbonate and cross-linking agent were added in sequence, and mixed at a temperature of 150°C for 10 minutes. Finally, carbon fiber powder, filler and additives were added, and mixing continued for 5 minutes;

[0020] Step 3: Melt Extrusion:

[0021] The mixed material is added into a twin-screw extruder and melt-extruded at 180-220°C to form a continuous material;

[0022] Step 4: Molding:

[0023] The mixed material and microspheres are placed in a mold, and then injection molded or compression molded to finally form a sole body material of a desired shape.

[0024] Preferably, in step 2, the temperature of the internal mixer is 120-150° C., and the plasticating time is 5-10 minutes.

[0025] Preferably, in step 4, the temperature of the injection molding or compression molding is 160-200° C., and the molding pressure is 15-20 MPa.

[0026] (III) Beneficial effects

[0027] The present invention provides an elastic sports shoe with a high-resilience multi-dimensional support sole, which has the following beneficial effects:

[0028] 1. By adding high-performance materials such as thermoplastic polyurethane, carbon fiber powder and nano-silica, the sole has excellent resilience and support performance, which can effectively relieve impact and fatigue during exercise and improve athletic performance.

[0029] 2. By introducing a specially formulated rebound layer material into the sole and cleverly utilizing hollow microspheres, the elasticity of the sole is significantly improved, enabling it to better adapt to different surfaces during exercise, reduce impact, and protect the wearer's ankles and joints. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the elastic sports shoe of the present invention;

[0031] Figure 2 It is a schematic diagram of the sole body structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the process of preparing the sole body of the present invention.

[0033] Among them, 1. sole body; 2. upper;

[0034] 11. Upper surface layer; 12. Resilience layer; 13. Support layer; 14. Bottom layer. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an elastic sports shoe with a high-resilience multi-dimensional support sole, including a sole body 1 and an upper 2. The sole body 1 includes an upper surface layer 11, a rebound layer 12, a support layer 13 and a bottom layer 14 from top to bottom.

[0038] The resilience layer 12 includes the following components in parts by weight: 50 parts of natural rubber, 10 parts of thermoplastic polyurethane, 10 parts of carbon fiber powder, 5 parts of nano-silicon dioxide, 5 parts of microspheres, 10 parts of calcium carbonate, 3 parts of cross-linking agent, 10 parts of filler, and 10 parts of additives.

[0039] The microspheres have a hollow structure, filled with inert gas or air inside and wrapped with a layer of elastic polymer outside; the diameter of the microspheres is 50 microns.

[0040] Secondly, the filler includes the following components in parts by weight: 2 parts of mica powder, 2 parts of quartz powder, 2 parts of asbestos powder, 2 parts of alumina powder, and 2 parts of carbon black.

[0041] Secondly, the auxiliary agent includes the following components in parts by weight: 2 parts of vulcanizing agent, 2 parts of accelerator, 2 parts of antioxidant, 2 parts of antioxidant, and 2 parts of foaming agent; specifically, the vulcanizing agent is sulfur, the accelerator is diphenylguanidine, the antioxidant is p-phenylenediamine, the antioxidant is a hindered phenol antioxidant, and the foaming agent is azodicarbonamide.

[0042] like Figure 3 As shown, the embodiment of the present invention also provides a method for preparing the sole body 1, comprising the following steps:

[0043] Step 1: Prepare the ingredients:

[0044] Weigh natural rubber, thermoplastic polyurethane, carbon fiber powder, nano-silicon dioxide, microspheres, calcium carbonate, a cross-linking agent, a filler and an additive according to weight;

[0045] Step 2: Mixing process:

[0046] The natural rubber was put into an internal mixer for plasticization at a temperature of 120°C and a plasticization time of 5 minutes, and then thermoplastic polyurethane, nano-silica, calcium carbonate and a cross-linking agent were added in sequence and mixed at a temperature of 150°C for 10 minutes, and finally carbon fiber powder, filler and additives were added and mixed for another 5 minutes;

[0047] Step 3: Melt Extrusion:

[0048] The mixed material is added into a twin-screw extruder and melt-extruded at 180°C to form a continuous material;

[0049] Step 4: Molding:

[0050] The mixed material and microspheres are placed in a mold, and then subjected to injection molding or compression molding. The temperature of the injection molding or compression molding is 160° C., and the molding pressure is 15 MPa, to finally manufacture a sole body material of a desired shape.

[0051] Embodiment 2:

[0052] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an elastic sports shoe with a high-resilience multi-dimensional support sole, including a sole body 1 and an upper 2. The sole body 1 includes an upper surface layer 11, a rebound layer 12, a support layer 13 and a bottom layer 14 from top to bottom.

[0053] The resilience layer 12 comprises the following components in parts by weight: 70 parts of natural rubber, 20 parts of thermoplastic polyurethane, 15 parts of carbon fiber powder, 8 parts of nano-silicon dioxide, 8 parts of microspheres, 15 parts of calcium carbonate, 4 parts of cross-linking agent, 15 parts of filler, and 15 parts of additives.

[0054] The microspheres have a hollow structure, filled with inert gas or air inside and wrapped with a layer of elastic polymer outside; the diameter of the microspheres is 100 microns.

[0055] Secondly, the filler includes the following components in parts by weight: 3 parts of mica powder, 3 parts of quartz powder, 3 parts of asbestos powder, 3 parts of alumina powder, and 3 parts of carbon black.

[0056] Secondly, the auxiliary agent includes the following components in parts by weight: 3 parts of vulcanizing agent, 3 parts of accelerator, 3 parts of antioxidant, 3 parts of antioxidant, and 3 parts of foaming agent; specifically, the vulcanizing agent is sulfur, the accelerator is diphenylguanidine, the antioxidant is p-phenylenediamine, the antioxidant is a hindered phenol antioxidant, and the foaming agent is azodicarbonamide.

[0057] like Figure 3 As shown, the embodiment of the present invention also provides a method for preparing the sole body 1, comprising the following steps:

[0058] Step 1: Prepare the ingredients:

[0059] Weigh natural rubber, thermoplastic polyurethane, carbon fiber powder, nano-silicon dioxide, microspheres, calcium carbonate, a cross-linking agent, a filler and an additive according to weight;

[0060] Step 2: Mixing process:

[0061] The natural rubber was put into an internal mixer for plasticization at a temperature of 140°C for 8 minutes, and then thermoplastic polyurethane, nano-silicon dioxide, calcium carbonate and cross-linking agent were added in sequence and mixed at a temperature of 150°C for 10 minutes, and finally carbon fiber powder, filler and additives were added and mixed for another 5 minutes;

[0062] Step 3: Melt Extrusion:

[0063] The mixed material is added into a twin-screw extruder and melt-extruded at 200°C to form a continuous material;

[0064] Step 4: Molding:

[0065] The mixed material and microspheres are placed in a mold, and then subjected to injection molding or compression molding. The temperature of the injection molding or compression molding is 180° C., and the molding pressure is 18 MPa, to finally manufacture a sole body material of a desired shape.

[0066] Embodiment three:

[0067] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an elastic sports shoe with a high-resilience multi-dimensional support sole, including a sole body 1 and an upper 2. The sole body 1 includes an upper surface layer 11, a rebound layer 12, a support layer 13 and a bottom layer 14 from top to bottom.

[0068] The resilience layer 12 comprises the following components in parts by weight: 80 parts of natural rubber, 30 parts of thermoplastic polyurethane, 20 parts of carbon fiber powder, 10 parts of nano-silicon dioxide, 10 parts of microspheres, 20 parts of calcium carbonate, 5 parts of cross-linking agent, 20 parts of filler, and 20 parts of additives.

[0069] The microspheres have a hollow structure, filled with inert gas or air inside and wrapped with a layer of elastic polymer outside; the diameter of the microspheres is 200 microns.

[0070] Secondly, the filler includes the following components in parts by weight: 4 parts of mica powder, 4 parts of quartz powder, 4 parts of asbestos powder, 4 parts of alumina powder, and 4 parts of carbon black.

[0071] Secondly, the auxiliary agent includes the following components in parts by weight: 4 parts of a vulcanizing agent, 4 parts of an accelerator, 4 parts of an antioxidant, 4 parts of an antioxidant, and 4 parts of a foaming agent; specifically, the vulcanizing agent is sulfur, the accelerator is diphenylguanidine, the antioxidant is p-phenylenediamine, the antioxidant is a hindered phenol antioxidant, and the foaming agent is azodicarbonamide.

[0072] like Figure 3 As shown, the embodiment of the present invention also provides a method for preparing the sole body 1, comprising the following steps:

[0073] Step 1: Prepare the ingredients:

[0074] Weigh natural rubber, thermoplastic polyurethane, carbon fiber powder, nano-silicon dioxide, microspheres, calcium carbonate, a cross-linking agent, a filler and an additive according to weight;

[0075] Step 2: Mixing process:

[0076] The natural rubber was put into an internal mixer for plasticization at a temperature of 150°C for 10 minutes, and then thermoplastic polyurethane, nano-silicon dioxide, calcium carbonate and cross-linking agent were added in sequence and mixed at a temperature of 150°C for 10 minutes, and finally carbon fiber powder, filler and additives were added and mixed for 5 minutes;

[0077] Step 3: Melt Extrusion:

[0078] The mixed material is added into a twin-screw extruder and melt-extruded at 220°C to form a continuous material;

[0079] Step 4: Molding:

[0080] The mixed material and microspheres are placed in a mold, and then subjected to injection molding or compression molding. The temperature of the injection molding or compression molding is 200° C., and the molding pressure is 20 MPa, to finally manufacture a sole body material of a desired shape.

[0081] Comparative Example:

[0082] The difference between this comparative example and Example 1 is that the resilience layer 12 includes the following components in parts by weight: 50 parts of natural rubber, 10 parts of thermoplastic polyurethane, 10 parts of carbon fiber powder, 5 parts of nano-silicon dioxide, 10 parts of calcium carbonate, 3 parts of cross-linking agent, 10 parts of filler, and 10 parts of additives.

[0083] Secondly, the preparation method of the sole body 1 comprises the following steps:

[0084] Step 1: Prepare the ingredients:

[0085] Weigh natural rubber, thermoplastic polyurethane, carbon fiber powder, nano silicon dioxide, calcium carbonate, crosslinking agent, filler and additives according to weight;

[0086] Step 2: Mixing process:

[0087] The natural rubber was put into an internal mixer for plasticization at a temperature of 120°C and a plasticization time of 5 minutes, and then thermoplastic polyurethane, nano-silica, calcium carbonate and a cross-linking agent were added in sequence and mixed at a temperature of 150°C for 10 minutes, and finally carbon fiber powder, filler and additives were added and mixed for another 5 minutes;

[0088] Step 3: Melt Extrusion:

[0089] The mixed material is added into a twin-screw extruder and melt-extruded at 180°C to form a continuous material;

[0090] Step 4: Molding:

[0091] The mixed materials are placed in a mold, and are subjected to injection molding or compression molding. The temperature of the injection molding or compression molding is 160° C., and the molding pressure is 15 MPa, to finally form a sole body material of a desired shape.

[0092] Experimental example:

[0093] The sole body material samples prepared in Examples 1, 2, 3 and Comparative Example were subjected to density test according to DI N53479 (test density determination of plastic box elastomer); resilience test according to GB / T1681 (test resilience of vulcanized rubber); and elongation at break and tensile strength test according to HG / T2580 (test tensile strength and elongation at break of rubber). The results are shown in the following table:

[0094] Example <![CDATA[Density (g / cm 3 )]]> Resilience(%) Tensile strength(MPa) Elongation at break (%) Embodiment 1 0.31 85.4 10.7 405 Embodiment 2 0.32 86.1 10.9 411 Embodiment 3 0.31 85.7 10.8 414 Comparative Example 0.35 71.2 8.7 340

[0095] In summary, the sole body material prepared by the present invention has excellent resilience and multi-dimensional support performance, mainly due to its unique formula and preparation process. First, the hollow structure of the microsphere and the inert gas or air filled inside it give the sole material good resilience, so that the wearer can feel more comfortable and natural feedback when walking or exercising. Secondly, the addition of carbon fiber powder significantly enhances the support performance of the sole, provides stable support for the foot, and reduces sprains and fatigue during exercise. At the same time, the addition of fillers such as nano-silicon dioxide and calcium carbonate further improves the strength and durability of the material, ensuring that the sole material can still maintain excellent performance during long-term use. In addition, the preparation method of the present invention ensures the consistency and stability of the sole material by accurately controlling the mixing ratio and processing temperature of the raw materials, and provides reliable guarantee for producing high-quality elastic sports shoes. In summary, the sole body material prepared by the present invention not only has excellent resilience and support performance, but also has a simple and easy-to-control preparation process, and has high practical value and market prospects.

[0096] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elastic sports shoe with a high-resilience multi-dimensional support sole, characterized in that: The shoe comprises a sole body (1) and a shoe upper (2), wherein the sole body (1) comprises, from top to bottom, an upper surface layer (11), a rebound layer (12), a support layer (13) and a bottom layer (14); The resilient layer (12) comprises the following components in parts by weight: 50-80 parts of natural rubber, 10-30 parts of thermoplastic polyurethane, 10-20 parts of carbon fiber powder, 5-10 parts of nano silicon dioxide, 5-10 parts of microspheres, 10-20 parts of calcium carbonate, 3-5 parts of crosslinking agent, 10-20 parts of filler, and 10-20 parts of auxiliary agent.

2. The elastic sports shoe with a high-resilience multi-dimensional support sole according to claim 1, characterized in that: The resilient layer (12) comprises the following components in parts by weight: 70 parts of natural rubber, 20 parts of thermoplastic polyurethane, 15 parts of carbon fiber powder, 8 parts of nano silicon dioxide, 8 parts of microspheres, 15 parts of calcium carbonate, 4 parts of a crosslinking agent, 15 parts of a filler, and 15 parts of an auxiliary agent.

3. The elastic sports shoe with a high-resilience multi-dimensional support sole according to claim 1 or 2, characterized in that: The microsphere adopts a hollow structure, the interior of which is filled with inert gas or air, and the exterior is wrapped with a layer of elastic polymer; the diameter of the microsphere is 50-200 microns.

4. The elastic sports shoe with a high-resilience multi-dimensional support sole according to claim 1 or 2, characterized in that: The filler comprises the following components in parts by weight: 2-4 parts of mica powder, 2-4 parts of quartz powder, 2-4 parts of asbestos powder, 2-4 parts of alumina powder and 2-4 parts of carbon black.

5. The elastic sports shoe with a high-resilience multi-dimensional support sole according to claim 1 or 2, characterized in that: The auxiliary agent comprises the following components in parts by weight: 2-4 parts of a vulcanizing agent, 2-4 parts of an accelerator, 2-4 parts of an antioxidant, 2-4 parts of an antioxidant, and 2-4 parts of a foaming agent.

6. The elastic sports shoe with a high-resilience multi-dimensional support sole according to claim 5, characterized in that: The vulcanizing agent is sulfur, the accelerator is diphenylguanidine, the antioxidant is p-phenylenediamine, the antioxidant is a hindered phenol antioxidant, and the foaming agent is azodicarbonamide.

7. The elastic sports shoe with a high-resilience multi-dimensional support sole according to claim 1, characterized in that: The method for preparing the sole body (1) comprises the following steps: Step 1: Prepare the ingredients: Weigh natural rubber, thermoplastic polyurethane, carbon fiber powder, nano-silicon dioxide, microspheres, calcium carbonate, a cross-linking agent, a filler and an additive according to weight; Step 2: Mixing process: The natural rubber was put into an internal mixer for plasticization, and then thermoplastic polyurethane, nano-silica, calcium carbonate and cross-linking agent were added in sequence, and mixed at a temperature of 150°C for 10 minutes. Finally, carbon fiber powder, filler and additives were added, and mixing continued for 5 minutes; Step 3: Melt Extrusion: The mixed material is added into a twin-screw extruder and melt-extruded at 180-220°C to form a continuous material; Step 4: Molding: The mixed material and microspheres are placed in a mold, and then injection molded or compression molded to finally form a sole body material of a desired shape.

8. The elastic sports shoe with a high-resilience multi-dimensional support sole according to claim 7, characterized in that: In step 2, the temperature of the internal mixer is 120-150° C., and the plasticating time is 5-10 minutes.

9. The elastic sports shoe with a high-resilience multi-dimensional support sole according to claim 7, characterized in that: In step 4, the temperature of the injection molding or compression molding is 160-200° C., and the molding pressure is 15-20 MPa.

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