CN109463845A - A kind of sole and its preparation method and application of damping rebound - Google Patents
A kind of sole and its preparation method and application of damping rebound Download PDFInfo
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- CN109463845A CN109463845A CN201811541554.7A CN201811541554A CN109463845A CN 109463845 A CN109463845 A CN 109463845A CN 201811541554 A CN201811541554 A CN 201811541554A CN 109463845 A CN109463845 A CN 109463845A
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- sole
- indsole
- bead
- inflatable elastic
- outsole
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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
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The present invention provides sole, preparation method and the application of a kind of damping rebound, which includes indsole and outsole, and said midsole is piled up by multiple inflatable elastic beads bonding to be constituted, and the bonding is realized by the way of microwave or radio frequency；According to vola shape, said midsole includes half sole region and heel area, and the diameter of each inflatable elastic bead is identical in the half sole region, and the diameter of each inflatable elastic bead is identical in the heel area.The indsole of sole of the present invention is piled up by multiple elastic hollow beads, filled with gas inside the bead, is constituted between each bead of indsole through microwave or radio-frequency technique heating bonding.The sole constituted also has high bradyseism, low compressive deformation while having many advantages, such as high rebound, is conducive to promote comfortable sexual experience.In addition, the preparation process of sole of the present invention is simple, low energy consumption, more environmentally friendly, is suitable for industrialization promotion.
Description
Technical field
The present invention relates to footwear product technical field more particularly to a kind of sole of damping rebound and preparation method thereof and answer
With.
Background technique
Athletic shoe sole is usually made of outsole and indsole, wherein outsole refers to the layer structure directly with ground face contact, leads to
It is often used natural rubber or artificial rubber is made, have the function of anti-skidding, wear-resisting and resistant to bending etc..Indsole then generally refers to insole
Structure between outsole, the effects of primarily serving damping or spring back.Currently, indsole is mainly total using ethylene vinyl acetate
Polymers (EVA), styrene series thermoplastic elastomer (SBS), ethylene octene block copolymer (OBC), thermoplastic polyurethane (TPU)
The foaming structure of equal thermoplastic elastic materials preparation.
The damping performance of sole refers to when foot is by strong impact power, using vibration-absorptive material or shock-damping structure on shoes
Powerful resistance, most of energy of consumption terrestrial transmission to foot are generated, to reduce impulse force, reduces the damage to foot.Shoes
Bottom resilience is to constitute into one of the necessary condition of shoes comfort level, especially for sport footwear.However, movement in the prior art
Shoes sole is often difficult to take into account high damping and high rebound degree, needs to be further strengthened in terms of comfortable sexual experience.
Summary of the invention
In view of this, the application provides a kind of sole and its preparation method and application of damping rebound, it is provided by the invention
Sole has many advantages, such as high rebound and high bradyseism simultaneously, is conducive to obtain preferably comfortable sexual experience.
The present invention provides a kind of sole of damping rebound, including indsole and outsole, said midsole are small by multiple inflatable elastics
Ball bonding piles up composition, and the bonding is realized by the way of microwave or radio frequency；According to vola shape, said midsole includes half sole
Region and heel area, the diameter of each inflatable elastic bead is identical in the half sole region, respectively inflates bullet in the heel area
The diameter of property bead is identical.
Preferably, the sphere resin material for constituting multiple inflatable elastic beads of indsole is thermoplastic polyurethane elastomer,
Nitrogen, carbon dioxide, paraffin gas or inert gas are filled with inside the multiple inflatable elastic bead.
Preferably, according to the different function of indsole, in the half sole region diameter of each inflatable elastic bead and it is described after
It is different with the diameter of inflatable elastic bead each in region.
Preferably, the diameter for constituting multiple inflatable elastic beads of indsole is 2~10mm, 0.1~0.5mm of sphere wall thickness.
Preferably, the resin material of the outsole is thermoplastic polyurethane elastomer.
Preferably, the outsole is full slice system structure, with a thickness of 4~10mm.
The present invention provides the preparation method of the sole of damping rebound as described above, comprising the following steps:
Thermoplastic elastomer resin is subjected to melting mixing, then carries out blow molding inflation, multiple inflatable elastic beads are made；
The multiple inflatable elastic bead is piled up and is placed in indsole mold cavity, bottom is placed in said midsole mold cavity
Outsole, carries out heating bonding using microwave or radio frequency after molding, and die sinking obtains the sole of damping rebound.
Preferably, the material of said midsole mold is polyethylene, polypropylene, polystyrene, polyethylene terephthalate
One of ester and polytetrafluoroethylene (PTFE) are a variety of.
Preferably, the power of the microwave or radio frequency is 20~500W, and heating time is 5~120s.
The present invention provides sole as described above in the application being prepared into shoes.
Compared with prior art, sole provided by the invention has damping property and resilience, and indsole is by multiple inflation bullets
Property bead bonding pile up composition, the bonding is realized by the way of microwave or radio frequency；According to vola shape, said midsole includes
Half sole region and heel area, the diameter of each inflatable elastic bead is identical in the half sole region, respectively fills in the heel area
The diameter of gas elastic pellet is identical.In the present invention, indsole is piled up by multiple elastic hollow beads, inside the bead filled with
Gas is constituted between each bead of indsole through microwave or radio-frequency technique heating bonding.The sole constituted has high rebound
While, also have many advantages, such as high bradyseism, low compressive deformation, is conducive to promote comfortable sexual experience.
In addition, the preparation process of sole of the present invention is simple, low energy consumption, more environmentally friendly.
Detailed description of the invention
Fig. 1 is the right side structural representation of sole provided in an embodiment of the present invention；
Fig. 2 is the footwear sole construction schematic diagram that the embodiment of the present invention one provides.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of soles of damping rebound, including indsole and outsole, and said midsole is by multiple inflatable elastics
Bead bonding piles up composition, and the bonding is realized by the way of microwave or radio frequency；According to vola shape, before said midsole includes
Region and heel area are slapped, the diameter of each inflatable elastic bead is identical in the half sole region, respectively inflates in the heel area
The diameter of elastic pellet is identical.
Sole provided by the invention also has while with high rebound degree, low compressive deformation and excellent low-temperature flexibility
There are high transparency, lasting comfortable and shock-absorbing function, wearer can be given and preferably worn and run experience.
Referring to Fig. 1, Fig. 1 is the right side structural representation of sole provided in an embodiment of the present invention.In Fig. 1,10 be indsole, 20
It is inflatable elastic bead for outsole, 30；Upper right portion is cross section signal in Fig. 1.
Sole described in the embodiment of the present invention is mainly made of indsole 10 and outsole 20, wherein indsole 10 is by multiple inflation bullets
Property bead 30 bonding pile up composition, the bonding is realized by the way of microwave or radio frequency.In the technical side of the embodiment of the present application
In case, the sphere resin material for constituting multiple inflatable elastic beads of indsole is preferably thermoplastic polyurethane elastomer；It is i.e. described
Inflatable elastic bead be preferably prepared by TPU resin through blow molding process.
In addition, the material for preparing of the inflatable elastic bead further includes processing aid, such as antioxidant, nucleating agent, lubrication
The conven-tional adjuvants of agent etc..The present invention type, the dosage of processing aid are had no it is specifically limited, using known to those skilled in the art
Quality proportioning.The antioxidant can be one or both of AT-10, AT-3114；The nucleating agent can be talcum
One or more of powder, mica, white carbon black, nano montmorillonite；The lubricant can be synthetic wax, the poly- second of low molecular weight
One or more of alkene, fatty acid ester, zinc stearate, barium stearate.
The copolymer that the thermoplastic polyurethane resin (TPU) is made of hard section and soft segment material has higher
Tensile property and wear-resisting property, and with excellent elasticity and the biofacies same sex, so that it is widely used in footwear material
Industry.The hard section of TPU assigns material hardness and rigidity, and shows flexible and toughness by the soft segment that polyalcohol forms；Hard section knot
As physical crosslinking point after crystalline substance, polyurethane surface is made to reveal high resiliency.TPU molecule is substantially line style, is contained in molecule more
Highly polar group, such as ester group, ether, carbamate groups, urea groups, biuret groups and allophanate group, these groups
It is intermolecular that there is strong active force and hydrogen bonds to form physical crosslinking so that between linear polyurethane strand there is heat or
Solvent is reversible " tie point ".Therefore, TPU effectively can be recycled and be reused, environmental-protecting performance it is good.In the present invention
Specific embodiment in, the hardness of TPU resin is 70A~50D, and melt index is 1~20g/10min (190 DEG C/21.6kg).
Also, it is filled with gas inside the multiple inflatable elastic beads of the present invention for constituting indsole, is preferably filled with nitrogen
Gas, carbon dioxide, paraffin gas or inert gas；The paraffin gas such as butane, the inert gas such as argon gas.Separately
Outside, the diameter of the multiple inflatable elastic beads for constituting indsole can be 2mm~10mm, sphere wall thickness 0.1mm~0.5mm.
According to vola shape, indsole of the present invention includes half sole region and heel area, is respectively filled in the half sole region
The diameter of gas elastic pellet is identical, and the diameter of each inflatable elastic bead is identical in the heel area.In technical solution of the present invention
In, inflation bead made of elastic material can realize high damping and energy feedback；Wherein the difference of size can realize indsole
Different function.That is, according to the different function of indsole, the diameter of each inflatable elastic bead and the heel area in the half sole region
The diameter of each inflatable elastic bead is different in domain.If half sole height spring back, then use smaller bead, with guarantee imparting more
More energy backs；Followed by needing damping, then the bead slightly larger with size, is landed by the deformation of sphere to absorb in motion process
When impact to heel.In addition, independent bead is not it is also ensured that influence whole performance after individual bead damages.
The specific size specification of indsole of the present invention is using well known to those skilled in the art；In tool of the invention
In body embodiment, the thickness range in said midsole half sole region is 8-16mm；The thickness range of heel area is 20-30mm.
In the present invention, it constitutes between the inflatable elastic bead of indsole, realizes that heating is viscous by microwave or radio-frequency technique
Conjunction or bonding are conducive to bead and bond uniform, promotion indsole performance.Meanwhile in the technical scheme, using microwave or radio frequency into
Row heating bonding, avoids using chemical glue, and it can realize that material is inside and outside while heating, and improve efficiency, save
Energy consumption, it is more environmentally friendly.
Environmental protection is also the developing direction in footwear material future, including two aspects: material environmentally protective or with sustainability
With the cleanly production in processing procedure.For example, widely used EVA foam and rubber material in sport footwear, need to be added crosslinking agent
It realizes foaming or high mechanical property, is difficult to carry out secondary use, while EVA material or synthetic rubber are mostly from can not
Lasting fossil resources can not be decomposed in nature after discarding.Therefore, it needs to develop the sustainable sole material of environmental protection
Material.During traditional shoemaking, the preparation flow length of indsole and outsole, complex steps, efficiency bottom.The compound of the two also needs to use
Threat also is caused to the health of human body while polluting environment to a large amount of chemical reagent and glue.
Microwave or radio frequency of the present invention belong to the long electromagnetic wave of high-frequency short waves, and frequency range is generally 100MHz-
300GHz.Microwave or radio frequency energy are penetrated into inside material, are caused the oscillation of the internally charged ion of material to migrate, are converted electrical energy into
Thermal energy, to achieve the purpose that heating.Compared with traditional heating mode, there is heating speed fastly, selectively to add for microwave or radio frequency
The advantages that heat, energy conversion efficiency height, homogeneous heating.According to reports, microwave or radio frequency heating efficiency is up to 50%-70%, far
Higher than the heating efficiency (10%) of traditional heating mode, but its footwear material foaming field using relatively fewer.The present invention will
Microwave or radio-frequency technique are applied in shoemaking, can also dramatically increase its efficiency and promote clean manufacturing, to effectively promote shoes
The added value of son.
In an embodiment of the present invention, the indsole of the sole is bonded with outsole 20 far from foot side.The outsole
Resin material is preferably thermoplastic polyurethane elastomer, i.e., outsole is preferably by high abrasion anti-skidding thermoplastic polyurethane (TPU tree
Rouge) it is made, it can be described as TPU outsole, there is preferable wearability and skid resistance.
In addition, the material for preparing of the outsole further includes the normal of processing aid, such as antioxidant, nucleating agent, lubricant etc.
Advise auxiliary agent.The antioxidant is one or both of AT-10, AT-3114；The nucleating agent is talcum powder, mica, hard charcoal
One or more of black, nano montmorillonite；The lubricant is synthetic wax, low molecular weight polyethylene, fatty acid ester, hard
One or more of resin acid zinc, barium stearate.
In the optimal technical scheme of the embodiment of the present invention, the indsole and outsole use identical material, can both protect
The good adhesive property of both cards, and be conducive to recycling and reusing, partition is needed not move through, directly entire sole can be crushed
It is granulated or melting is reprocessed.
The present invention is not particularly limited the structure design of the outsole；Outsole described in the embodiment of the present invention is generally full wafer
Formula structure can be described as sheet material outsole.The sheet material outsole can be made by the anti-skidding TPU resin of high abrasion through injection molding, TPU
For material hardness preferably between 35A~90A, material molten index is 1~20g/10min (190 DEG C/21.6kg)；Outsole thickness
Preferably 4mm~10mm.
In a preferred embodiment of the invention, the sole is the sole that transparent damping is sprung back, can be by various sizes of
Thermoplastic polyurethane elastomer inflates the indsole of bead composition and the TPU sheet material outsole composition that high abrasion is anti-skidding.In addition, institute
It states between indsole and outsole preferably by microwave or radio-frequency technique heating bonding.Forming process of the embodiment of the present invention is easy, consumes
Can be few, and indsole and outsole bonding are entirely without chemical reagent such as glue；The thermoplastic polyurethane elastomer of use also has preferably
Degradability, recoverable, be conducive to environmental protection.
Some embodiments of the invention provide the preparation method of the sole of damping rebound as described above, including following step
It is rapid:
Thermoplastic elastomer resin is subjected to melting mixing, then carries out blow molding inflation, multiple inflatable elastic beads are made；
The multiple inflatable elastic bead is piled up and is placed in indsole mold cavity, bottom is placed in said midsole mold cavity
Outsole, carries out heating bonding using microwave or radio frequency after molding, and die sinking obtains the sole of damping rebound.
The embodiment of the present invention is added twin-screw and squeezes preferably by thermoplastic elastomer resin and processing aid after dry, mixing
Melting mixing is carried out in machine barrel out, inflation is blow molded in being rapidly introduced into mold after extrusion, multiple inflatable elastic beads is made.Its
In, the thermoplastic elastomer resin is preferably TPU resin, and the contents such as structural parameters are as previously described.The melting mixing
Temperature is generally 170~220 DEG C；The compression pressure that blow molding inflation uses in a mold is preferably 0.3MPa~0.6MPa.
The compressed gas is filled with inside elastic pellet, and the preferred type of the gas is as previously described；The temperature of the mold is generally 30
~50 DEG C.The diameter of multiple inflatable elastic beads obtained can be 2mm~10mm, sphere wall thickness 0.1mm~0.5mm.
Also, it is big that TPU sheet material is made through injection molding in the TPU resin that the embodiment of the present invention preferably uses high abrasion anti-skidding
Bottom.It in the injection molding process, is added preferably through dry thermoplastic polyurethane resin etc. to injecting machine material tube, injection molding
Barrel temperature can be 175~235 DEG C (barrel temperature is generally greater than nozzle temperature), and injection pressure is 80~120kg f/cm2, mould
The TPU outsole sheet material with a thickness of 4~10mm can be obtained in 30~50 DEG C of temperature of tool.
Preferably, the present invention constitutes between the bead of indsole and passes through between indsole and outsole microwave or radio frequency
Technology heating bonding.During the heating bonding, the embodiment of the present invention, which first piles up a certain amount of inflatable elastic bead, is set
In in special indsole mold cavity, bottom is put into the TPU outsole of injection molding in advance in said midsole mold cavity, is put into microwave after molding
Or heating bonding is carried out in radio frequency heating case, it is opened after the completion of heating, that is, forms the sole of the damping rebound.
Wherein, the material of said midsole mold is preferably polyethylene, polypropylene, polystyrene, poly terephthalic acid second two
One of alcohol ester and polytetrafluoroethylene (PTFE) are a variety of.The power of the microwave or radio frequency can be 20W~500W；Heating time is preferred
For 5s~120s.Bead filling mode is to be manually added and automatic gauge vacuum suck two ways；Into microwave or radio frequency
Mode in case: push-in enters along conveyer belt.
Sole produced by the present invention has many advantages, such as high rebound, high bradyseism and low compressive deformation simultaneously, is conducive to obtain preferable
Comfortable sexual experience and durability.In addition, the sole of resulting damping rebound can transparency with higher.The sole prepares work
Skill is simple, easy to control, and energy consumption is small, high-efficient, and environmental protection, can 100% recycling.
The present invention also provides soles as described above in the application being prepared into shoes；The present invention at shoes type,
Structure, and preparation etc. are not particularly limited.Present invention is mainly applied to sport footwear, such as road-work shoes, using the sole,
Wearer can be given preferably to wear and run experience.
For a further understanding of the application, damping provided by the present application is sprung back below with reference to embodiment sole and its system
Preparation Method and application are specifically described.
Embodiment one
Fig. 2 is the footwear sole construction schematic diagram that the embodiment of the present invention one provides, wherein 10 be indsole, and 20 be outsole, and 30 be to fill
Gas elastic pellet, 11 be heel area, and 12 be half sole region.
As depicted in figs. 1 and 2, a kind of sole of transparent high damping rebound includes: the shoes with the hollow elastic pellet 30 of TPU
The TPU outsole 20 of indsole 10 and wear-resisting antiskid；Wherein, the midsole 10 includes half sole region 12 and heel area 11.At this
In embodiment, the half sole region 12 includes the hollow elastic pellet 30 that diameter is 3mm, with a thickness of 12mm；Heel area 11
The hollow elastic pellet 30 for being 6mm including diameter, with a thickness of 24mm.
In embodiment, by thermoplastic polyurethane resin, (BASF Elastollan 1185A10, hardness 85A, melting refer to
Several < 20g/10min, 190 DEG C, 21.6kg) and processing aid (0.2 part of antioxidant AT10,1 part of nucleating agent white carbon black, profit
0.5 part of lubrication prescription zinc stearate), it by drying and is stirred, carries out melting mixing in addition to twin-screw extruder barrel, squeeze
It is rapidly introduced into mold and is blow molded again after out, two kinds of hollow elastic pellets of size are made.Wherein, bead wall thickness 0.3mm；Squeeze out melting
200 DEG C of temperature, compressed gas (nitrogen) pressure be 0.4MPa, 50 DEG C of mold temperature.
By thermoplastic polyurethane resin (BASF Elastollan SP9324, hardness 60A) and processing aid (antioxidant
0.2 part of AT3114,1 part of nucleating agent talcum powder, 0.5 part of lubricant synthetic wax), it by drying and is stirred, is added to injection molding
Injection molding after progress melting mixing, is made TPU outsole sheet material in machine barrel.Wherein, outsole thickness 5mm；It is molded barrel temperature
It is 175~235 DEG C, injection pressure is 80~120kg f/cm2, 50 DEG C of mold temperature.
TPU outsole obtained is put into indsole mold, inflatable elastic bead obtained is packed into (mould in indsole mold
Having material is polypropylene), half sole is packed into the bead that diameter is 3mm, and the bead that filling diameter is 6mm at heel and arch of foot closes
It after mould, is put into microwave heating box and carries out heating bonding, the power of microwave or radio frequency is 300W, is opened, that is, is formed after heating 15s
The sole of required transparent high damping rebound.
Embodiment two
As shown in Figure 1, a kind of transparent high damping rebound sole includes: the midsole 10 with the hollow elastic pellet 30 of TPU
With the TPU outsole 20 of wear-resisting antiskid.Wherein, the midsole 10 includes half sole region and heel area.In the present embodiment, institute
The half sole region stated includes the hollow elastic pellet 30 that diameter is 3mm, with a thickness of 12mm；Heel area includes that diameter is 3mm
Hollow elastic pellet 30, with a thickness of 24mm.
In the present embodiment, by thermoplastic polyurethane resin (BASF Elastollan 1185A10, hardness 85A, melting
Index < 20g/10min, 190 DEG C, 21.6kg) and processing aid (0.2 part of antioxidant AT10,1 part of nucleating agent white carbon black,
0.5 part of lubricant stearic acid zinc), it by drying and is stirred, carries out melting mixing in addition to twin-screw extruder barrel,
It is rapidly introduced into mold and is blow molded again after extrusion, hollow elastic pellet is made.Wherein, bead wall thickness 0.4mm；Squeeze out melting temperature
200 DEG C, compressed nitrogen gas pressure be 0.5MPa, 50 DEG C of mold temperature, diameter 3mm.
By thermoplastic polyurethane resin (BASF Elastollan SP9324, hardness 60A) and processing aid (antioxidant
0.2 part of AT3114,1 part of nucleating agent talcum powder, 0.5 part of lubricant synthetic wax), it by drying and is stirred, is added to injection molding
Injection molding after progress melting mixing, is made TPU outsole sheet material in machine barrel.Wherein, outsole thickness 5mm；It is molded barrel temperature
It is 175~235 DEG C, injection pressure is 80~120kg f/cm2, 50 DEG C of mold temperature.
TPU outsole obtained is put into indsole mold, inflatable elastic bead obtained is packed into (mould in indsole mold
Having material is polypropylene), after molding, it is put into microwave or radio frequency heating case and carries out heating bonding, the power of radio frequency is 300W,
It is opened after heating 15s, that is, forms the sole of required transparent high damping rebound.
Embodiment three
As shown in Figure 1, a kind of transparent high damping rebound sole includes: the midsole 10 with the hollow elastic pellet 30 of TPU
With the TPU outsole 20 of wear-resisting antiskid.Wherein, the midsole 10 includes half sole region and heel area.In the present embodiment, institute
The half sole region stated includes the hollow elastic pellet 30 that diameter is 8mm, with a thickness of 12mm；Heel area includes that diameter is 8mm
Hollow elastic pellet 30, with a thickness of 24mm.
In the present embodiment, by thermoplastic polyurethane resin (BASF Elastollan 1185A10, hardness 85A, melting
Index < 20g/10min, 190 DEG C, 21.6kg) and processing aid (0.2 part of antioxidant AT10,1 part of nucleating agent white carbon black,
0.5 part of lubricant stearic acid zinc), it by drying and is stirred, carries out melting mixing in addition to twin-screw extruder barrel,
It is rapidly introduced into mold and is blow molded again after extrusion, hollow elastic pellet is made.Wherein, bead wall thickness 0.3mm；Squeeze out melting temperature
200 DEG C, compression pressure 0.3MPa, 50 DEG C of mold temperature, diameter 8mm.
By thermoplastic polyurethane resin (BASF Elastollan SP9324, hardness 60A) and processing aid (antioxidant
0.2 part of AT3114,1 part of nucleating agent talcum powder, 0.5 part of lubricant synthetic wax), it by drying and is stirred, is added to injection molding
Injection molding after progress melting mixing, is made TPU outsole sheet material in machine barrel.Wherein, outsole thickness 4mm；It is molded barrel temperature
It is 175~235 DEG C, injection pressure is 80~120kg f/cm2, 50 DEG C of mold temperature.
TPU outsole obtained is put into indsole mold, inflatable elastic bead obtained is packed into (mould in indsole mold
Having material is polytetrafluoroethylene (PTFE)), it after molding, is put into microwave heating box and carries out heating bonding, the power of microwave or radio frequency is
300W is opened after heating 15s, that is, forms the sole of required transparent high damping rebound.
Example IV
As shown in Figure 1, a kind of transparent high damping rebound sole includes: the midsole 10 with the hollow elastic pellet 30 of TPU
With the TPU outsole 20 of wear-resisting antiskid.Wherein, the midsole 10 includes half sole region and heel area.In the present embodiment, institute
The half sole region stated includes the hollow elastic pellet 30 that diameter is 3mm, with a thickness of 12mm；Heel area includes that diameter is 6mm
Hollow elastic pellet 30, with a thickness of 24mm.
In the present embodiment, by thermoplastic polyurethane resin (BASF Elastollan 1185A10, hardness 85A, melting
Index < 20g/10min, 190 DEG C, 21.6kg) and processing aid (0.2 part of antioxidant AT10,1 part of nucleating agent white carbon black,
0.5 part of lubricant stearic acid zinc), it by drying and is stirred, carries out melting mixing in addition to twin-screw extruder barrel,
It is rapidly introduced into mold and is blow molded again after extrusion, two kinds of hollow elastic pellets of size are made.Wherein, bead wall thickness 0.3mm；It squeezes out molten
Melt 200 DEG C of temperature, compression pressure 0.4MPa, 50 DEG C of mold temperature.
By thermoplastic polyurethane resin (BASF Elastollan SP9324, hardness 60A) and processing aid (antioxidant
0.2 part of AT3114,1 part of nucleating agent talcum powder, 0.5 part of lubricant synthetic wax), it by drying and is stirred, is added to injection molding
Injection molding after progress melting mixing, is made TPU outsole sheet material in machine barrel.Wherein, outsole thickness 5mm；It is molded barrel temperature
It is 175~235 DEG C, injection pressure is 80~120kg f/cm2, 50 DEG C of mold temperature.
TPU outsole obtained is put into indsole mold, inflatable elastic bead obtained is packed into (mould in indsole mold
Having material is polytetrafluoroethylene (PTFE)), half sole is packed into the bead that diameter is 3mm, and filling diameter is the small of 6mm at heel and arch of foot
Ball after molding, is put into microwave heating box and carries out heating bonding, and the power of microwave or radio frequency is 100W, is opened after heating 40s,
Form the sole of required transparent high damping rebound.
Comparative example one
According to one associated formula of embodiment, inflatable elastic bead and TPU outsole is made；
TPU outsole obtained is put into indsole mold, by inflatable elastic bead obtained injection vapor molding machine
In indsole mold, 100s is heated through the vapor that temperature is 145 DEG C, then, draining cooling through cold water and air-cooled, needed for obtaining
Sole.
Comparative example two
By thermoplastic polyurethane and processing aid, (0.2 part of antioxidant AT10,1 part of nucleating agent white carbon black, lubricant is stearic
0.5 part of sour zinc), after dry and be stirred, it is added to twin-screw extruder barrel, is squeezed out after carrying out melting mixing,
And cooling and cutting obtains TPU particle under water.TPU particle is impregnated under carbon dioxide atmosphere to solubility equilibria, quickly
Release expands TPU particle rapidly, through drying, screening, ageing, obtains the ETPU particle of different-grain diameter；
By thermoplastic polyurethane resin (BASF Elastollan SP9324, hardness 60A) and processing aid (antioxidant
0.2 part of AT3114,1 part of nucleating agent talcum powder, 0.5 part of lubricant synthetic wax), it by drying and is stirred, is added to injection molding
Injection molding after progress melting mixing, is made TPU outsole sheet material in machine barrel.Wherein, outsole thickness 5mm；It is molded barrel temperature
It is 175~235 DEG C, injection pressure is 80~120kg f/cm2, 50 DEG C of mold temperature.
TPU outsole obtained is put into indsole mold, by (mold materials are poly- four in ETPU particle injection indsole mold
Vinyl fluoride), half sole is packed into the ETPU that diameter is 3mm, and the ETPU that filling diameter is 6mm at heel and arch of foot after molding, is put into
Heating bonding is carried out in microwave heating box, microwave power 100W is opened after heating 40s, that is, forms required sole.
Sole made from the embodiment of the present invention and comparative example is tested for the property, as a result as follows:
The performance of sole made from 1 embodiment of the present invention of table
Note: the physical properties detection data in table 1 is the data obtained by standard method of test.
The performance of sole made from the comparative example of the present invention of table 2
The results show that by the comparing result of embodiment one, embodiment two and embodiment three it is found that thermoplastic polyurethane is made
The physical property of sole is it is found that as elastic pellet size is smaller, and the rebound degree of sole is higher, and Compression Set rate is lower,
Damping performance is poorer.
By the comparing result of embodiment one and example IV it is found that microwave or radio-frequency technique using different capacity are added
Heat bonding, the time needed is also different, and the time of high-power needs is short, and sole physical property, which is made, fine difference, it may be possible to function
Thermoplastic polyurethane bead surface melting degree caused by rate is high is some higher.
By the comparing result of embodiment one and comparative example one it is found that the time required to using microwave or radio frequency heating molding more
It is short, and spring back and be better than vapor moulding process with damping performance, it is primarily due to vapor molding heating unevenly, causes
The melting of partial elastic bead surface excessively, results in the leakage of gas.
By the comparing result of embodiment two and comparative example two it is found that equally being formed using microwave or radio frequency heating, inflation
Rebound of the sole performance than ETPU sole is made in bead and damping performance is slightly good, and compression set rate is significantly higher than ETPU shoes
Bottom.The epidermis for being primarily due to ETPU is relatively thin, and surface, which is easy to happen melting, during heating bonding leads to gas leakage, thus
Cause biggish contraction, the compression performance of material is caused to reduce.
In summary it analyzes, technical solution disclosed by the invention solves whole technical problems listed by specification, realizes
Corresponding technical effect.
The above is only a preferred embodiment of the present invention, it is noted that for making the professional technique of the art
Personnel are that by various modifications to these embodiments without departing from the technical principles of the invention, and these
Modification also should be regarded as the range that the present invention should protect.
Claims (10)
1. a kind of sole of damping rebound, including indsole and outsole, which is characterized in that said midsole is by multiple inflatable elastic beads
Bonding piles up composition, and the bonding is realized by the way of microwave or radio frequency；According to vola shape, said midsole includes front sole area
Domain and heel area, the diameter of each inflatable elastic bead is identical in the half sole region, each inflatable elastic in the heel area
The diameter of bead is identical.
2. sole according to claim 1, which is characterized in that constitute the sphere resin of multiple inflatable elastic beads of indsole
Material is thermoplastic polyurethane elastomer, and nitrogen, carbon dioxide, paraffin gas are filled with inside the multiple inflatable elastic bead
Or inert gas.
3. sole according to claim 1, which is characterized in that each in the half sole region according to the different function of indsole
The diameter of inflatable elastic bead is different from the diameter of inflatable elastic bead each in the heel area.
4. sole described in any one of claim 1 to 3, which is characterized in that the multiple inflatable elastics for constituting indsole are small
The diameter of ball is 2~10mm, 0.1~0.5mm of sphere wall thickness.
5. sole described in any one of claim 1 to 3, which is characterized in that the resin material of the outsole is thermoplastic
Property polyurethane elastomer.
6. sole according to claim 5, which is characterized in that the outsole is full slice system structure, with a thickness of 4~10mm.
7. the preparation method of the sole such as damping according to any one of claims 1 to 6 rebound, comprising the following steps:
Thermoplastic elastomer resin is subjected to melting mixing, then carries out blow molding inflation, multiple inflatable elastic beads are made；
The multiple inflatable elastic bead is piled up and is placed in indsole mold cavity, bottom is placed with greatly in said midsole mold cavity
Bottom, carries out heating bonding using microwave or radio frequency after molding, and die sinking obtains the sole of damping rebound.
8. preparation method according to claim 7, which is characterized in that the material of said midsole mold is polyethylene, poly- third
One of alkene, polystyrene, polyethylene terephthalate and polytetrafluoroethylene (PTFE) are a variety of.
9. preparation method according to claim 7, which is characterized in that the power of the microwave or radio frequency is 20~500W,
Heating time is 5~120s.
10. if sole according to any one of claims 1 to 6 is in the application being prepared into shoes.
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| CN201811541554.7A CN109463845A (en) | 2018-12-17 | 2018-12-17 | A kind of sole and its preparation method and application of damping rebound |
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| CN201811541554.7A CN109463845A (en) | 2018-12-17 | 2018-12-17 | A kind of sole and its preparation method and application of damping rebound |
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| CN201811541554.7A Pending CN109463845A (en) | 2018-12-17 | 2018-12-17 | A kind of sole and its preparation method and application of damping rebound |
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| CN111602925A (en) * | 2020-06-02 | 2020-09-01 | 安踏（中国）有限公司 | Insole material with natural light transmission and preparation method thereof |
| ES2797531A1 (en) * | 2019-07-18 | 2020-12-02 | Porta Canto Antonio Ramon | Manufacturing procedure of a sole for footwear and product thus obtained (Machine-translation by Google Translate, not legally binding) |
| CN112659445A (en) * | 2019-10-15 | 2021-04-16 | 阿迪达斯股份公司 | Method for producing a particle foam component, in particular a damping element for sports clothing or sports goods |
| CN113234299A (en) * | 2021-04-25 | 2021-08-10 | 蔡林希 | SBS environment-friendly dry-process resin and preparation method and application thereof |
| CN114468466A (en) * | 2021-12-29 | 2022-05-13 | 福建鸿星尔克体育用品有限公司 | Odd-elastic cushioning sole and preparation method thereof |
| WO2024078065A1 (en) * | 2022-10-14 | 2024-04-18 | 郭亭鹤 | Breathable cushioning shoe, breathable cushioning sole, and sole preparation method |
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| CN113234299A (en) * | 2021-04-25 | 2021-08-10 | 蔡林希 | SBS environment-friendly dry-process resin and preparation method and application thereof |
| CN114468466A (en) * | 2021-12-29 | 2022-05-13 | 福建鸿星尔克体育用品有限公司 | Odd-elastic cushioning sole and preparation method thereof |
| WO2024078065A1 (en) * | 2022-10-14 | 2024-04-18 | 郭亭鹤 | Breathable cushioning shoe, breathable cushioning sole, and sole preparation method |
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