CN111534081A - Insole material with natural light transmission and preparation method thereof - Google Patents
Insole material with natural light transmission and preparation method thereof Download PDFInfo
- Publication number
- CN111534081A CN111534081A CN202010489967.6A CN202010489967A CN111534081A CN 111534081 A CN111534081 A CN 111534081A CN 202010489967 A CN202010489967 A CN 202010489967A CN 111534081 A CN111534081 A CN 111534081A
- Authority
- CN
- China
- Prior art keywords
- foaming
- agent
- natural light
- parts
- thermoplastic polyurethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- 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
- A43B13/026—Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/08—Supercritical fluid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
Abstract
The invention provides a midsole material with natural light transmission, which is prepared from a thermoplastic polyurethane elastomer mixed material; the thermoplastic polyurethane elastomer mixture comprises the following components: 100 parts of a thermoplastic polyurethane elastomer main material; 1-2 parts of nucleating agent; 0.5 to 1.5 parts by weight of a flow agent; 0.2 to 0.8 weight portion of yellow-resistant agent; 1 to 1.5 parts by weight of a foaming agent. Compared with the prior art, the insole material with natural light transmission provided by the invention adopts specific content components, so that better interaction is realized, the prepared insole material has natural light transmission, further irreplaceable appearance lines and peculiar landscapes under light sensation can be obtained, and meanwhile, the product has excellent low temperature resistance, compression resistance and high cost performance.
Description
Technical Field
The invention relates to the technical field of shoe product manufacturing, in particular to a midsole material with natural light transmission and a preparation method thereof.
Background
Thermoplastic polyurethane elastomer (TPU for short)) is a high molecular material formed by jointly reacting and polymerizing diisocyanate molecules such as diphenylmethane diisocyanate (MDI) or Toluene Diisocyanate (TDI), macromolecular polyol and low-molecular polyol (chain extender); the molecular structure of the material is formed by alternately reacting a rigid block obtained by reacting diphenylmethane diisocyanate (MDI) or Toluene Diisocyanate (TDI) with a chain extender and a flexible chain segment obtained by reacting diisocyanate molecules such as diphenylmethane diisocyanate (MDI) or Toluene Diisocyanate (TDI) with macromolecular polyol, has the characteristics of excellent high tension, high tensile force, toughness and aging resistance, and is a mature environment-friendly material.
At present, the unfoamed TPU in the market is not used as the sole material alone, but is used as the auxiliary material of the sole, generally plays a role in supporting, reinforcing or appearance for the shoe, and is similar to decoration; the shoe midsole made of TPU (E-TPU) materials in the market is mainly made of BOOTS materials, but the preparation process is limited, the cost performance is low, the particle appearance is single, and the aesthetic fatigue is brought.
Disclosure of Invention
In view of the above, the present invention provides a midsole material with natural light transmittance and a method for preparing the same, and the midsole material provided by the present invention has natural light transmittance, low temperature resistance, excellent compression resistance, and high cost performance.
The invention provides a midsole material with natural light transmission, which is prepared from a thermoplastic polyurethane elastomer mixed material; the thermoplastic polyurethane elastomer mixture comprises the following components:
100 parts of a thermoplastic polyurethane elastomer main material;
1-2 parts of nucleating agent;
0.5 to 1.5 parts by weight of a flow agent;
0.2 to 0.8 weight portion of yellow-resistant agent;
1 to 1.5 parts by weight of a foaming agent.
Preferably, the nucleating agent is selected from one or more of montmorillonite, titanium dioxide, calcium carbonate, white carbon black, microcrystalline cellulose, carbon nano tube and graphene.
Preferably, the flow agent is selected from erucamide lubricants.
Preferably, the anti-yellowing agent is selected from one or more of antioxidant 246, ultraviolet light absorber 328, and ultraviolet light absorber VSU.
Preferably, the foaming agent is selected from dibutyltin dilaurate and CO2And C.
The invention also provides a preparation method of the insole material with natural light transmission in the technical scheme, which comprises the following steps:
a) premixing all components in the thermoplastic polyurethane elastomer mixed material, and drying and dehumidifying to obtain a premix;
b) sequentially carrying out extrusion foaming, injection foaming and molding on the premix obtained in the step a), and adding air holes to obtain a natural light-transmitting midsole material; the extrusion foaming mode is supercritical foaming.
Preferably, the dehumidifying temperature for drying and dehumidifying in the step a) is 170-190 ℃, the drying temperature is 70-90 ℃, and the drying time is 100-140 min.
Preferably, the temperature of the supercritical foaming in the step b) is 190-205 ℃, the pressure is 5-10 MPa, the extrusion rotating speed is 100-140 r/min, the blanking amount is 10-20 kg/h, the gas injection amount is 4-6 mL/min, and the gas injection pressure is 10-14 MPa.
Preferably, the temperature of the injection foaming in the step b) is 180-190 ℃, the pressure is 8-12 MPa, and the injection speed is 50-70 mm/s.
Preferably, the pressure of the molding gas in step b) is 4kg/cm2～6kg/cm2The temperature of the die is 40-80 ℃;
the molding time comprises the following steps: heating and shaping for 400-700 s in the mold, and naturally cooling and shaping for 10-14 h.
The invention provides a midsole material with natural light transmission, which is prepared from a thermoplastic polyurethane elastomer mixed material; the thermoplastic polyurethane elastomer mixture comprises the following components: 100 parts of a thermoplastic polyurethane elastomer main material; 1-2 parts of nucleating agent; 0.5 to 1.5 parts by weight of a flow agent; 0.2 to 0.8 weight portion of yellow-resistant agent; 1 to 1.5 parts by weight of a foaming agent. Compared with the prior art, the insole material with natural light transmission provided by the invention adopts specific content components, so that better interaction is realized, the prepared insole material has natural light transmission, further irreplaceable appearance lines and peculiar landscapes under light sensation can be obtained, and meanwhile, the product has excellent low temperature resistance, compression resistance and high cost performance.
In addition, the preparation method provided by the invention directly uses the TPU material in the formed shoe insole through supercritical extrusion foaming, the process is simple, vulcanization is not required, the flow is short, the efficiency is high, the waste can be recycled, the overall cost is low, the environment is protected, and the preparation method has a wide application prospect.
Drawings
FIG. 1 is a drawing showing a top-striped foamed midsole material according to example 1 of the present invention;
FIG. 2 is a diagram showing a finished product after molding in example 1 of the present invention;
FIG. 3 is a fragmentary illustration of a midsole material having natural light transmittance according to example 1 of the present invention;
FIGS. 4 to 5 are overall object diagrams of the midsole material having natural light transmittance according to embodiment 1 of the present invention;
FIG. 6 is a diagram illustrating the light transmittance effect of a midsole material having natural light transmittance according to example 1 of the present invention;
FIGS. 7 to 8 are overall object diagrams of the midsole material having natural light transmittance according to embodiment 2 of the present invention;
fig. 9 is a light transmission effect diagram of a midsole material having natural light transmission according to embodiment 2 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a midsole material with natural light transmission, which is prepared from a thermoplastic polyurethane elastomer mixed material; the thermoplastic polyurethane elastomer mixture comprises the following components:
100 parts of a thermoplastic polyurethane elastomer main material;
1-2 parts of nucleating agent;
0.5 to 1.5 parts by weight of a flow agent;
0.2 to 0.8 weight portion of yellow-resistant agent;
1 to 1.5 parts by weight of a foaming agent.
In the invention, the main material (TPU main material for short) of the thermoplastic polyurethane elastomer can realize supercritical foaming and can be recycled, and EVA materials are basically chemically foamed and cannot be recycled; compared with EVA materials, the TPU materials have better elasticity, weather resistance, low temperature resistance and compression deformation rate, and can keep the refractive property of raw materials after foaming and forming, and have light permeability, irregular grains are generated, and special appearance is realized. The source of the TPU main material in the present invention is not particularly limited and commercially available products known to those skilled in the art may be used. In the invention, the thermoplastic polyurethane elastomer mixture comprises 100 parts by weight of TPU main material.
In the present invention, the nucleating agent is preferably selected from one or more of montmorillonite, titanium dioxide, calcium carbonate, white carbon black, microcrystalline cellulose, carbon nanotube and graphene, and more preferably titanium dioxide. The source of the nucleating agent is not particularly limited, and commercially available products of the montmorillonite, titanium dioxide, calcium carbonate, white carbon black, microcrystalline cellulose, carbon nanotube and graphene, which are well known to those skilled in the art, can be adopted. In the invention, the nucleating agent mainly serves as a filler, is dispersed in a matrix and is beneficial to nucleating and crystallizing and improving the strength of the resin. In the invention, the nucleating agent is preferably a nano nucleating agent, the energy barrier between the nano nucleating agent particles and the interface of the polymer melt is low, the nucleation of the foam cells is easy to occur around the particles, and the nucleation process is promoted, so that the size of the foam cells is greatly reduced, and the density of the foam cells is improved; the size of the nano-nucleating agent is preferably below 500nm, more preferably below 200 nm. In the present invention, the thermoplastic polyurethane elastomer mixture includes 1 to 2 parts by weight of the nucleating agent, preferably 1.3 to 1.5 parts by weight.
In the present invention, the flow agent is preferably selected from erucamide lubricants. The source of the flow agent is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used. In the present invention, the thermoplastic polyurethane elastomer mixture includes 0.5 to 1.5 parts by weight of a flow agent, preferably 1 part by weight.
In the present invention, the anti-yellowing agent is preferably selected from one or more of an antioxidant 246, an ultraviolet light absorber 328, and an ultraviolet light absorber VSU, and more preferably, the ultraviolet light absorber VSU. The source of the yellowing resistance agent is not particularly limited in the present invention, and commercially available products well known to those skilled in the art may be used. In the present invention, the thermoplastic polyurethane elastomer mixture includes 0.2 to 0.8 parts by weight of the anti-yellowing agent, preferably 0.5 parts by weight.
In the present invention, the blowing agent is preferably selected from dibutyltin dilaurate, CO2And C, more preferably C. The source of the blowing agent is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used. In the present invention, the heat isThe plastic polyurethane elastomer mixture comprises 1 to 1.5 parts by weight of foaming agent, preferably 1.2 to 1.3 parts by weight.
The insole material with natural light transmission provided by the invention adopts specific content components, so that better interaction is realized, the prepared insole material has natural light transmission, further, irreplaceable appearance lines and peculiar landscapes under light sensation can be obtained, and meanwhile, the product has excellent low temperature resistance and compression resistance, good bending property, air permeability and bonding strength, small density, comfort, stability, durability and high integral cost performance; on the basis, the running shoes using the insole material with natural light transmission provided by the invention are more comfortable, have better energy rebound and have stronger visual impact.
The invention also provides a preparation method of the insole material with natural light transmission in the technical scheme, which comprises the following steps:
a) premixing all components in the thermoplastic polyurethane elastomer mixed material, and drying and dehumidifying to obtain a premix;
b) sequentially carrying out extrusion foaming, injection foaming and molding on the premix obtained in the step a), and adding air holes to obtain a natural light-transmitting midsole material; the extrusion foaming mode is supercritical foaming.
The invention firstly mixes all components in the thermoplastic polyurethane elastomer mixture, and then dries and dehumidifies to obtain the premix. In the present invention, the thermoplastic polyurethane elastomer mixture is the same as that in the above technical solution, and is not described herein again.
The premixing mode is not particularly limited by the invention, and a stirring technical scheme well known to those skilled in the art is adopted, so that the components are uniformly mixed. In the invention, the dehumidification temperature for drying and dehumidifying is preferably 170-190 ℃, and more preferably 180 ℃; the drying temperature for drying and dehumidifying is preferably 70-90 ℃, and more preferably 80 ℃; the drying time for drying and dehumidifying is preferably 100min to 140min, and more preferably 120 min.
After the premix is obtained, the obtained premix is sequentially subjected to extrusion foaming, injection foaming and molding, and the insole material with natural light transmittance is obtained after the air holes are added. In the invention, the extrusion foaming mode is supercritical foaming; the supercritical foaming method comprises the steps of firstly, simultaneously injecting carbon dioxide or nitrogen and other gases in a supercritical state into a device in the blanking process, fully and uniformly mixing/diffusing the gases and molten raw materials to form single-phase mixed sol, then introducing the sol into a die cavity or an extrusion opening die, and generating large pressure drop on the sol so as to separate out the gases to form a large number of bubble nuclei; in the subsequent cooling and forming process, bubble nuclei in the sol continuously grow up and are formed, and finally, a finished product of microcellular foaming is obtained; the finished product of the microcellular foam has high specific strength and high cost performance, can greatly improve the dimensional accuracy of the finished product, and shortens the development cycle of the product; the residual stress of the product is greatly reduced, and the warping deformation of the finished product is reduced and improved; eliminating surface sink marks; the raw materials are effectively saved, and the product quality is reduced; the foaming agent has low cost and is environment-friendly; the fluidity of the mixed sol is enhanced by 20 to 40 percent, the viscosity is low, and the mold filling is easy; the supercritical gas equipment has simple process, low cost and environmental protection. The supercritical foaming device is not particularly limited in the invention, and a heating inflation extrusion foaming device well known to those skilled in the art is adopted.
In the present invention, the temperature of the supercritical foaming is preferably 190 to 205 ℃, more preferably 192 to 203 ℃; the pressure of the supercritical foaming is preferably 5MPa to 10MPa, and more preferably 5MPa to 7 MPa; the extrusion rotating speed of the supercritical foaming is preferably 100 r/min-140 r/min, and more preferably 120 r/min; the feeding amount of the supercritical foaming is preferably 10 kg/h-20 kg/h, and more preferably 15 kg/h; the gas injection amount of the supercritical foaming is preferably 4mL/min to 6mL/min, and more preferably 5mL/min to 5.5 mL/min; the gas injection pressure of the supercritical foaming is preferably 10MPa to 14MPa, and more preferably 11.5MPa to 12.5 MPa.
In the invention, the temperature of the injection molding foaming is preferably 180-190 ℃, and more preferably 182-188 ℃; the pressure of the injection foaming is preferably 8MPa to 12MPa, and more preferably 8MPa to 10 MPa; the injection speed of the injection foaming is preferably 50mm/s to 70mm/s, and more preferably 60 mm/s.
In the present invention, the air pressure for the molding is preferably 4kg/cm2～6kg/cm2More preferably 4.5kg/cm2～5.5kg/cm2(ii) a The temperature of the formed die is preferably 40-80 ℃, and more preferably 60-80 ℃; the actual molding temperature is 10 ℃ lower than the temperature of the mold; the molding time preferably includes: heating and shaping for 400-700 s in the mold, and naturally cooling and shaping for 10-14 h; more preferably: heating and shaping for 400-600 s in the mold, and naturally cooling and shaping for 12 h.
The preparation method provided by the invention directly uses the TPU material in the formed shoe insole through supercritical extrusion foaming, finishes the preparation in a one-step extrusion molding and one-stop mode, has simple process, no need of vulcanization, short flow, high efficiency and low cost (the volume production cost is 200-300% lower than that of the BOOTS process in the prior art), can recycle the waste materials, has low overall cost, is green and environment-friendly, and has wide application prospect.
The invention provides a midsole material with natural light transmission, which is prepared from a thermoplastic polyurethane elastomer mixed material; the thermoplastic polyurethane elastomer mixture comprises the following components: 100 parts of a thermoplastic polyurethane elastomer main material; 1-2 parts of nucleating agent; 0.5 to 1.5 parts by weight of a flow agent; 0.2 to 0.8 weight portion of yellow-resistant agent; 1 to 1.5 parts by weight of a foaming agent. Compared with the prior art, the insole material with natural light transmission provided by the invention adopts specific content components, so that better interaction is realized, the prepared insole material has natural light transmission, further irreplaceable appearance lines and peculiar landscapes under light sensation can be obtained, and meanwhile, the product has excellent low temperature resistance, compression resistance and high cost performance.
In addition, the preparation method provided by the invention directly uses the TPU material in the formed shoe insole through supercritical extrusion foaming, the process is simple, vulcanization is not required, the flow is short, the efficiency is high, the waste can be recycled, the overall cost is low, the environment is protected, and the preparation method has a wide application prospect.
To further illustrate the present invention, the following examples are provided for illustration. The starting materials used in the following examples of the present invention are all commercially available products.
Example 1
(1) The formula of the thermoplastic polyurethane elastomer mixture comprises the following components:
TPU main material (WANHUA 85105): 100 parts by weight;
nucleating agent: 1.5 parts by weight;
a flow agent: 1 part by weight;
a yellowing resistant agent: 0.5 part by weight;
foaming agent: 1.2 parts by weight;
wherein, the nucleating agent is nano titanium dioxide, the flowing agent is an erucamide lubricant, and the anti-yellowing agent is an ultraviolet absorber VSU; the foaming agent is C.
(2) The preparation method comprises the following steps:
weighing the components in the thermoplastic polyurethane elastomer mixed material according to the parts by weight as raw materials; premixing the weighed raw materials, pouring the premixed raw materials into a discharging barrel of an extruder for drying and dehumidifying, setting the temperature of a dehumidifier to be 180 ℃, the drying temperature of the discharging barrel to be 80 ℃ and the time to be 120min to obtain a premix; then extruding and foaming the obtained premix by an extruder at the temperature of 195 +/-3 ℃, the pressure of 6 +/-1 MPa, the extrusion rotation speed of 120r/min, the blanking amount of 15kg/h, the gas injection (carbon dioxide gas) amount of 5.5mL/min and the gas injection pressure of 12 +/-0.5 MPa, and then carrying out injection molding and foaming by an injection molding machine at the temperature of 185 +/-3 ℃, the pressure of 9 +/-1 MPa and the injection speed of 60mm/s to obtain a noodle-shaped foaming shoe insole material (shown in figure 1); finally, the obtained foamed insole material is molded, and the air pressure is 5 +/-0.5 kg/cm2The mold temperature is 75 +/-5 ℃, the actual molding temperature is 65 +/-5 ℃, and the molding time is as follows: heating and shaping for 400s in the mold, naturally cooling and shaping for 12h (the shaped finished product is shown in figure 2), and adding air holes to obtain the insole material (shown in figures 3-5) with natural light transmission.
Through detection, the foaming multiplying factor of the insole material with natural light transmittance provided by the embodiment 1 of the invention is 4g/cm3～5g/cm3The rebound resilience is 48-50%, and the hardness is 52-55C; in addition, theThe light irradiation effect graph is shown in fig. 6.
Example 2
(1) The formula of the thermoplastic polyurethane elastomer mixture comprises the following components:
TPU master batch (LUBRIZOL 58135): 100 parts by weight;
nucleating agent: 1.3 parts by weight;
a flow agent: 1 part by weight;
a yellowing resistant agent: 0.5 part by weight;
foaming agent: 1.3 parts by weight;
wherein, the nucleating agent is nano titanium dioxide, the flowing agent is an erucamide lubricant, and the anti-yellowing agent is an ultraviolet absorber VSU; the foaming agent is C.
(2) The preparation method comprises the following steps:
weighing the components in the thermoplastic polyurethane elastomer mixed material according to the parts by weight as raw materials; premixing the weighed raw materials, pouring the premixed raw materials into a discharging barrel of an extruder for drying and dehumidifying, setting the temperature of a dehumidifier to be 180 ℃, the drying temperature of the discharging barrel to be 80 ℃ and the time to be 120min to obtain a premix; then extruding and foaming the obtained premix by an extruder at the temperature of 200 +/-3 ℃, the pressure of 6 +/-1 MPa, the extrusion rotation speed of 120r/min, the feeding amount of 15kg/h, the gas injection amount (carbon dioxide gas) of 5mL/min and the gas injection pressure of 12 +/-0.5 MPa, and then carrying out injection molding and foaming by an injection molding machine at the temperature of 185 +/-3 ℃, the pressure of 9 +/-1 MPa and the injection speed of 60mm/s to obtain the noodle-shaped foamed shoe insole material; finally, the obtained foamed insole material is molded, and the air pressure is 5 +/-0.5 kg/cm2The mold temperature is 65 +/-5 ℃, the actual molding temperature is 55 +/-5 ℃, and the molding time is as follows: heating and shaping for 600s in the mold, naturally cooling and shaping for 12h, and adding air holes to obtain the insole material with natural light transmission (see fig. 7-8).
Through detection, the foaming multiplying power of the insole material with natural light transmittance provided by the embodiment 2 of the invention is 5g/cm3～6g/cm3The rebound resilience is 48-50%, and the hardness is 45-47C; in addition, light can be added to the middle area, and the middle light effect graph is shown in the figure 9.
TABLE 1 data on the properties of the midsole materials with natural light transmittance provided in examples 1-2
As can be seen from table 1, the midsole materials having natural light transmittance provided in embodiments 1 to 2 of the present invention have excellent low temperature resistance and compression resistance, good flexibility, air permeability, and bonding strength, and are low in density, comfortable, stable, durable, and high in overall cost performance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended 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 (10)
1. A shoe insole material with natural light transmission is prepared by thermoplastic polyurethane elastomer mixture; the thermoplastic polyurethane elastomer mixture comprises the following components:
100 parts of a thermoplastic polyurethane elastomer main material;
1-2 parts of nucleating agent;
0.5 to 1.5 parts by weight of a flow agent;
0.2 to 0.8 weight portion of yellow-resistant agent;
1 to 1.5 parts by weight of a foaming agent.
2. The midsole material having natural light transmittance according to claim 1, wherein the nucleating agent is selected from one or more of montmorillonite, titanium dioxide, calcium carbonate, white carbon, microcrystalline cellulose, carbon nanotubes, and graphene.
3. The midsole material of claim 1, wherein the flow agent is selected from erucamide lubricants.
4. The midsole material of claim 1, wherein the anti-yellowing agent is selected from one or more of an antioxidant 246, an ultraviolet light absorber 328, and an ultraviolet light absorber VSU.
5. The midsole material having natural light transmittance according to claim 1, wherein the foaming agent is selected from dibutyltin dilaurate, CO2And C.
6. A method for preparing the natural light-transmitting midsole material of any one of claims 1 to 5, comprising the steps of:
a) premixing all components in the thermoplastic polyurethane elastomer mixed material, and drying and dehumidifying to obtain a premix;
b) sequentially carrying out extrusion foaming, injection foaming and molding on the premix obtained in the step a), and adding air holes to obtain a natural light-transmitting midsole material; the extrusion foaming mode is supercritical foaming.
7. The preparation method of claim 6, wherein the dehumidification temperature for drying and dehumidifying in the step a) is 170-190 ℃, the drying temperature is 70-90 ℃, and the drying time is 100-140 min.
8. The preparation method according to claim 6, wherein the temperature of the supercritical foaming in the step b) is 190 ℃ to 205 ℃, the pressure is 5MPa to 10MPa, the extrusion rotation speed is 100r/min to 140r/min, the feeding amount is 10kg/h to 20kg/h, the gas injection amount is 4mL/min to 6mL/min, and the gas injection pressure is 10MPa to 14 MPa.
9. The preparation method of claim 6, wherein the temperature of the injection foaming in the step b) is 180-190 ℃, the pressure is 8-12 MPa, and the injection speed is 50-70 mm/s.
10. The method according to claim 6, wherein the pressure of the molding gas in the step b) is 4kg/cm2～6kg/cm2The temperature of the die is 40-80 ℃;
the molding time comprises the following steps: heating and shaping for 400-700 s in the mold, and naturally cooling and shaping for 10-14 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010489967.6A CN111534081B (en) | 2020-06-02 | 2020-06-02 | Insole material with natural light transmission and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010489967.6A CN111534081B (en) | 2020-06-02 | 2020-06-02 | Insole material with natural light transmission and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111534081A true CN111534081A (en) | 2020-08-14 |
| CN111534081B CN111534081B (en) | 2021-12-24 |
Family
ID=71972447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010489967.6A Active CN111534081B (en) | 2020-06-02 | 2020-06-02 | Insole material with natural light transmission and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111534081B (en) |
Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030220061A1 (en) * | 2002-05-23 | 2003-11-27 | Cabot Microelectronics Corporation | Microporous polishing pads |
| WO2008036483A1 (en) * | 2006-09-19 | 2008-03-27 | Nike, Inc. | Fluid-filled bladder incorporating a foam tensile member |
| CN101824134A (en) * | 2010-05-13 | 2010-09-08 | 安踏（中国）有限公司 | Polyurethane for sports shoe sole and preparation method thereof |
| CN103709726A (en) * | 2013-12-17 | 2014-04-09 | 烟台开发区新龙华包装材料有限公司 | Extrusion foaming thermoplastic polyurethane elastomer bead and preparation method thereof |
| US20140259753A1 (en) * | 2013-03-15 | 2014-09-18 | Nike, Inc. | Modified thermoplastic elastomers for increased compatibility with supercritical fluids |
| CN105086422A (en) * | 2015-08-31 | 2015-11-25 | 贵州省材料产业技术研究院 | Long glass fiber reinforced TPU non-slip soles and preparation method thereof |
| KR101609355B1 (en) * | 2014-11-11 | 2016-04-05 | 한국신발피혁연구원 | Manufacturing method of integrally formed shoe sole for better cushion and light weight and integrally formed shoe sole using the same |
| CN105476172A (en) * | 2015-12-22 | 2016-04-13 | 丁荣誉 | PU puffed sole and production process thereof |
| CN105639837A (en) * | 2016-03-29 | 2016-06-08 | 丁荣誉 | Laminating popcorn polyurethane shoe material and production technology |
| CN106957449A (en) * | 2016-01-11 | 2017-07-18 | 福建新峰二维材料科技有限公司 | A kind of preparation method of Thermoplastic polyurethane elastomer foam material |
| CN206687262U (en) * | 2016-12-30 | 2017-12-01 | 东莞市兴茂橡塑科技有限公司 | Transparent sole |
| CN206964118U (en) * | 2017-07-28 | 2018-02-06 | 福建起步儿童用品有限公司 | A kind of colorful interest type children's footwear with shock-absorbing function |
| CN107722602A (en) * | 2017-09-26 | 2018-02-23 | 上海德亿化工有限公司 | Foamed profile of Memorability multiple spot positive feedback resilient material and preparation method thereof |
| CN108102338A (en) * | 2018-01-26 | 2018-06-01 | 青岛科技大学 | A kind of foaming midsole |
| CN108559057A (en) * | 2018-05-03 | 2018-09-21 | 东莞市雄林新材料科技股份有限公司 | A kind of NEW TYPE OF COMPOSITE expanded material and preparation method thereof |
| CN109043734A (en) * | 2018-08-01 | 2018-12-21 | 宁波格林美孚新材料科技有限公司 | A kind of foamed thermoplastic elastomers insole with bridge architecture |
| CN109071766A (en) * | 2016-11-17 | 2018-12-21 | 三井化学株式会社 | Foaming thermoplastic polyurethane resin and its manufacturing method and molded product |
| CN109206892A (en) * | 2018-10-23 | 2019-01-15 | 安踏（中国）有限公司 | High-elastic foaming midsole material of one kind and its preparation method and application |
| CN109385097A (en) * | 2018-10-23 | 2019-02-26 | 安踏（中国）有限公司 | A kind of shoes foamed material, preparation method and its application |
| EP3459723A1 (en) * | 2017-09-22 | 2019-03-27 | Adidas AG | Method and a mold for producing a molded part and molded part |
| CN109549284A (en) * | 2019-01-08 | 2019-04-02 | 晋江国盛新材料科技有限公司 | A kind of shock-absorbing sole and its moulding process with air cushion effect |
| US20190246739A1 (en) * | 2018-02-13 | 2019-08-15 | National Cheng Kung University | Midsole material composition, method for producing midsole material and shoe sole |
| CN110229411A (en) * | 2019-06-21 | 2019-09-13 | 安踏（中国）有限公司 | A kind of EVA gross porosity composite foam material and preparation method |
| US20190351592A1 (en) * | 2018-05-21 | 2019-11-21 | Robert Falken | Biodegradable and industrially compostable injection moulded microcellular flexible foams, and a method of manufacturing the same |
| CN110776724A (en) * | 2019-10-23 | 2020-02-11 | 青岛科技大学 | Functional elastic foaming material and preparation method and application thereof |
| CN110951258A (en) * | 2019-12-27 | 2020-04-03 | 福建安达福新材料科技有限公司 | non-Newtonian fluid material for shoe material and preparation method thereof |
| CN111109759A (en) * | 2019-12-25 | 2020-05-08 | 福建飞扬鞋材有限公司 | Light foamed TPU sole and manufacturing process thereof |
| CN111117215A (en) * | 2020-01-02 | 2020-05-08 | 李宁（中国）体育用品有限公司 | Thermoplastic elastomer foamed shoe material and preparation method thereof |
-
2020
- 2020-06-02 CN CN202010489967.6A patent/CN111534081B/en active Active
Patent Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030220061A1 (en) * | 2002-05-23 | 2003-11-27 | Cabot Microelectronics Corporation | Microporous polishing pads |
| WO2008036483A1 (en) * | 2006-09-19 | 2008-03-27 | Nike, Inc. | Fluid-filled bladder incorporating a foam tensile member |
| CN101824134A (en) * | 2010-05-13 | 2010-09-08 | 安踏（中国）有限公司 | Polyurethane for sports shoe sole and preparation method thereof |
| US20140259753A1 (en) * | 2013-03-15 | 2014-09-18 | Nike, Inc. | Modified thermoplastic elastomers for increased compatibility with supercritical fluids |
| CN103709726A (en) * | 2013-12-17 | 2014-04-09 | 烟台开发区新龙华包装材料有限公司 | Extrusion foaming thermoplastic polyurethane elastomer bead and preparation method thereof |
| KR101609355B1 (en) * | 2014-11-11 | 2016-04-05 | 한국신발피혁연구원 | Manufacturing method of integrally formed shoe sole for better cushion and light weight and integrally formed shoe sole using the same |
| CN105086422A (en) * | 2015-08-31 | 2015-11-25 | 贵州省材料产业技术研究院 | Long glass fiber reinforced TPU non-slip soles and preparation method thereof |
| CN105476172A (en) * | 2015-12-22 | 2016-04-13 | 丁荣誉 | PU puffed sole and production process thereof |
| CN106957449A (en) * | 2016-01-11 | 2017-07-18 | 福建新峰二维材料科技有限公司 | A kind of preparation method of Thermoplastic polyurethane elastomer foam material |
| CN105639837A (en) * | 2016-03-29 | 2016-06-08 | 丁荣誉 | Laminating popcorn polyurethane shoe material and production technology |
| CN109071766A (en) * | 2016-11-17 | 2018-12-21 | 三井化学株式会社 | Foaming thermoplastic polyurethane resin and its manufacturing method and molded product |
| CN206687262U (en) * | 2016-12-30 | 2017-12-01 | 东莞市兴茂橡塑科技有限公司 | Transparent sole |
| CN206964118U (en) * | 2017-07-28 | 2018-02-06 | 福建起步儿童用品有限公司 | A kind of colorful interest type children's footwear with shock-absorbing function |
| EP3459723A1 (en) * | 2017-09-22 | 2019-03-27 | Adidas AG | Method and a mold for producing a molded part and molded part |
| CN107722602A (en) * | 2017-09-26 | 2018-02-23 | 上海德亿化工有限公司 | Foamed profile of Memorability multiple spot positive feedback resilient material and preparation method thereof |
| CN108102338A (en) * | 2018-01-26 | 2018-06-01 | 青岛科技大学 | A kind of foaming midsole |
| US20190246739A1 (en) * | 2018-02-13 | 2019-08-15 | National Cheng Kung University | Midsole material composition, method for producing midsole material and shoe sole |
| CN108559057A (en) * | 2018-05-03 | 2018-09-21 | 东莞市雄林新材料科技股份有限公司 | A kind of NEW TYPE OF COMPOSITE expanded material and preparation method thereof |
| US20190351592A1 (en) * | 2018-05-21 | 2019-11-21 | Robert Falken | Biodegradable and industrially compostable injection moulded microcellular flexible foams, and a method of manufacturing the same |
| CN109043734A (en) * | 2018-08-01 | 2018-12-21 | 宁波格林美孚新材料科技有限公司 | A kind of foamed thermoplastic elastomers insole with bridge architecture |
| CN109206892A (en) * | 2018-10-23 | 2019-01-15 | 安踏（中国）有限公司 | High-elastic foaming midsole material of one kind and its preparation method and application |
| CN109385097A (en) * | 2018-10-23 | 2019-02-26 | 安踏（中国）有限公司 | A kind of shoes foamed material, preparation method and its application |
| CN109549284A (en) * | 2019-01-08 | 2019-04-02 | 晋江国盛新材料科技有限公司 | A kind of shock-absorbing sole and its moulding process with air cushion effect |
| CN110229411A (en) * | 2019-06-21 | 2019-09-13 | 安踏（中国）有限公司 | A kind of EVA gross porosity composite foam material and preparation method |
| CN110776724A (en) * | 2019-10-23 | 2020-02-11 | 青岛科技大学 | Functional elastic foaming material and preparation method and application thereof |
| CN111109759A (en) * | 2019-12-25 | 2020-05-08 | 福建飞扬鞋材有限公司 | Light foamed TPU sole and manufacturing process thereof |
| CN110951258A (en) * | 2019-12-27 | 2020-04-03 | 福建安达福新材料科技有限公司 | non-Newtonian fluid material for shoe material and preparation method thereof |
| CN111117215A (en) * | 2020-01-02 | 2020-05-08 | 李宁（中国）体育用品有限公司 | Thermoplastic elastomer foamed shoe material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| MOHAMMADREZA NOFAR: "《Effect of hard segment content on the microcellular foaming behaviorof TPU using supercritical CO2》", 《THE JOURNAL OF SUPERCRITICAL FLUIDS》 * |
| 单体坤: "《超临界二氧化碳制备热塑性聚氨酯弹性体》", 《橡胶工业》 * |
| 杨昊运: "《热塑性聚氨酯 ( TPU ) 弹性体发泡成型研究进展》", 《塑料工业》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111534081B (en) | 2021-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7361415B2 (en) | Yellowing-resistant thermoplastic polyurethane foam material and method for producing the same | |
| CN109206892B (en) | High-elasticity foamed shoe midsole material and preparation method and application thereof | |
| TWI667285B (en) | Production of expanded thermoplastic elastomer | |
| CN104830047B (en) | The method for preparing formed body, thin slice using colored TPU expanded particles, sheet material | |
| CN102964644B (en) | Special sizing material for foaming rubber sole | |
| CN108559057B (en) | Novel composite foam material and preparation method thereof | |
| CN107641294A (en) | A kind of thermoplastic polyester elastomer foaming precursor, foaming body and preparation method thereof | |
| CN103183955A (en) | Novel foaming thermoplastic polyurethane elastomer material sole and preparation method thereof | |
| CN110894278B (en) | High-transparency thermoplastic polyurethane elastomer for film blowing and preparation method thereof | |
| CN104341770A (en) | Preparation technology of novel environmentally friendly polyurethane foamed plastic | |
| CN106274013A (en) | A kind of method by elastomeric material recycle and reuse | |
| CN107828205A (en) | It is a kind of can vulcanization crosslinking polyurathamc elastomeric compound particle and preparation method thereof and moulding process | |
| CN103374220A (en) | Natural fiber-reinforced polyurethane elastomer composite material and preparation method thereof | |
| CN110317446A (en) | Non-inflatable tyre containing polyurethane matrix and foamed thermoplastic elastomers particle | |
| CN1413145A (en) | Gas assisted injection moulding | |
| CN109171092B (en) | Elastomer shoe and shoe making process thereof | |
| CN106397729B (en) | A kind of hot pressing sizing padded coaming and preparation method and application | |
| CN108440783A (en) | A kind of polyurethane foam bead and preparation method thereof | |
| CN112126215A (en) | Elastic wood-plastic composite material for 3D printing and preparation method and application thereof | |
| CN108822569A (en) | A kind of Wood-plastic foam material and preparation method thereof | |
| CN111534081B (en) | Insole material with natural light transmission and preparation method thereof | |
| CN111234492A (en) | PLA/TPU supercritical foaming composite material and preparation method thereof | |
| CN111500055B (en) | Low-temperature flexible polyurethane composite shoe material and preparation method thereof | |
| CN108357302A (en) | The encapsulated tire of assembled hatching solid and its manufacturing technique method | |
| CN111602925B (en) | Insole material with natural light transmission and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |