CN117565302A - Phase-change insole and manufacturing method thereof - Google Patents
Phase-change insole and manufacturing method thereof Download PDFInfo
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- CN117565302A CN117565302A CN202310811845.8A CN202310811845A CN117565302A CN 117565302 A CN117565302 A CN 117565302A CN 202310811845 A CN202310811845 A CN 202310811845A CN 117565302 A CN117565302 A CN 117565302A
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- insole
- phase change
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- pcm
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000012782 phase change material Substances 0.000 claims abstract description 68
- 239000000463 material Substances 0.000 claims abstract description 46
- 229920002635 polyurethane Polymers 0.000 claims abstract description 35
- 239000004814 polyurethane Substances 0.000 claims abstract description 35
- 238000005187 foaming Methods 0.000 claims abstract description 33
- 230000008859 change Effects 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000011049 filling Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 48
- 238000001035 drying Methods 0.000 claims description 43
- 238000003825 pressing Methods 0.000 claims description 6
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000002135 phase contrast microscopy Methods 0.000 description 54
- 210000002683 foot Anatomy 0.000 description 16
- 230000007704 transition Effects 0.000 description 8
- 230000003139 buffering effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- SNKZJIOFVMKAOJ-UHFFFAOYSA-N 3-Aminopropanesulfonate Chemical compound NCCCS(O)(=O)=O SNKZJIOFVMKAOJ-UHFFFAOYSA-N 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BSBWHJJQLLJPOP-UHFFFAOYSA-N benzene disulfide Chemical compound C1=CC2SC2C2SC21 BSBWHJJQLLJPOP-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000004744 fore-foot Anatomy 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000002563 ionic surfactant Substances 0.000 description 1
- -1 methacryloxyethyltrimethyl thiadiazole Chemical compound 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- GUGNSJAORJLKGP-UHFFFAOYSA-K sodium 8-methoxypyrene-1,3,6-trisulfonate Chemical compound [Na+].[Na+].[Na+].C1=C2C(OC)=CC(S([O-])(=O)=O)=C(C=C3)C2=C2C3=C(S([O-])(=O)=O)C=C(S([O-])(=O)=O)C2=C1 GUGNSJAORJLKGP-UHFFFAOYSA-K 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
- B29L2031/507—Insoles
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses a phase change insole and a manufacturing method thereof, the method comprises dividing different parts of the insole according to the use condition of the insole and the carrying capacity of a polyurethane foaming material on a PCM phase change material, and calculating the addition amount of the PCM phase change material corresponding to different sole parts of a person in the polyurethane foaming material; mixing polyurethane foaming materials and PCM phase change materials according to a proportion to form mixed liquid corresponding to different parts of the sole of a human body; filling the mixed liquid corresponding to different parts of the human feet into insole molds at corresponding positions for baking, and preparing the phase-change insole after baking treatment. The invention can realize the adjustment of heat dissipation and perspiration of different parts, can better meet the temperature adjustment requirements of the insoles at different parts, improves the comfort level of the insoles, reduces the problems of perspiration and peculiar smell of feet, improves the wearing experience, has longer service life, can continuously generate heat and absorb heat, can also prevent the problems of deformation, aging and the like of the shoes, and improves the durability of the shoes.
Description
Technical Field
The invention relates to the technical field of shoe manufacturing, in particular to a phase-change insole and a manufacturing method thereof.
Background
The shoe pad is a common living article in daily life of people, the traditional shoe pad is usually formed by tailoring and sewing cloth according to the shape of a sole, has sweat-absorbing and anti-skidding functions, and along with the improvement of living standard of people, more and more polymer foaming materials are applied to shoe materials to play a better role of buffering, shock resistance, moisture resistance and no water absorption, but the shoe materials manufactured by the prior polymer foaming materials are easy to cause the problems of foot odor, insufficient ventilation and poor sweat-discharging functions in the use process, and the generated peculiar smell brings great inconvenience to the life of people and is easy to breed bacteria, so that cross infection is formed, the shoe pad is very unfavorable for human health, and along with the continuous improvement of living quality of people, the requirements of people on the shoe materials are also higher and higher, and the prior shoe pad cannot meet the wearing requirements of people.
Disclosure of Invention
The invention aims to provide a phase-change insole and a manufacturing method thereof, which are used for solving the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a method of making a phase change insole, the method comprising:
dividing different parts of the insole according to the use condition of the insole and the carrying capacity of the polyurethane foaming material on the PCM phase change material, and calculating the addition amount of the PCM phase change material corresponding to the sole parts of different people in the polyurethane foaming material;
mixing polyurethane foaming materials and PCM phase change materials according to a proportion to form mixed liquid corresponding to different parts of the sole of a human body;
filling the mixed liquid corresponding to different parts of the human feet into insole molds at corresponding positions for baking, and preparing the phase-change insole after baking treatment.
Further, dividing different parts of the insole according to the use condition of the insole and the carrying capacity of the polyurethane foaming material on the PCM phase change material, and calculating the addition amount of the PCM phase change material corresponding to different sole parts of the human body in the polyurethane foaming material comprises the following steps:
dividing different parts of the insole according to the use condition of the insole and the carrying capacity of the polyurethane foaming material on the PCM phase change material, and calculating the pressure and the volume born by the different parts of the insole;
the mass of the PCM phase change material added to different parts of the insole is calculated according to the pressure and the volume born by the different parts of the insole so as to determine the addition proportion of the PCM phase change material corresponding to the sole parts of different people in the polyurethane foaming material.
Further, the insole is divided into a forefoot region, a heel region, a middle region, and a full-sole region.
Further, the mixing of the polyurethane foaming material and the PCM phase change material to form a mixed solution corresponding to different parts of the human foot includes:
carrying out surface treatment on PCM phase change materials corresponding to different parts of the sole of a human foot;
adding the processed PCM phase change material into the polyurethane foaming material according to a proportion, and blending the material into a dispersing agent;
the mixture was heated and stirred.
Further, the step of filling the mixed liquid corresponding to different parts of the human foot into the corresponding insole mold for baking, and the step of manufacturing the phase-change insole comprises the following steps:
pouring the mixed liquid corresponding to different parts of the human feet into corresponding insole molds to be connected together, and pressing and flattening the mixture at the adjacent positions when the mixture is not dried at the connecting positions;
controlling the drying temperature to be lower than the phase-change temperature according to the thickness of the phase-change insole, and controlling the drying time according to the drying state of the mixture;
and after drying, cooling the phase change insoles, and processing to prepare the phase change insoles.
Further, controlling the drying time according to the drying state of the mixture includes: setting an initial drying temperature, setting the initial drying temperature according to the drying state of the mixture, and repeatedly adjusting the drying temperature until the surface humidity and/or the color change value of the mixture is equal to a preset threshold value when the surface humidity and/or the color change value of the mixture is smaller than the expected threshold value to obtain the drying time of the mixture.
The phase-change insole is manufactured by the manufacturing method of the phase-change insole.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the PCM phase change materials are proportionally distributed and added into the polyurethane foaming material to prepare the insoles at different positions, so that the heat dissipation and perspiration amounts at different positions can be adjusted, the temperature adjustment requirements of the insoles at different positions can be met, the comfort level of the insoles can be improved, the perspiration and odor problems of feet can be reduced, the wearing experience can be improved, the phase change material insoles have longer service lives, heat can be continuously generated and absorbed, the problems of deformation, aging and the like of shoes can be prevented, and the durability of the shoes can be improved.
Drawings
FIG. 1 is a flow chart of the phase change insole and the manufacturing method thereof.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the embodiment provides a method for manufacturing a phase-change insole, which includes the following steps:
s1: dividing different parts of the insole according to the use condition of the insole and the carrying capacity of the polyurethane foaming material on the PCM phase change material, and calculating the addition amount of the PCM phase change material corresponding to the sole parts of different people in the polyurethane foaming material;
s2: mixing polyurethane foaming materials and PCM phase change materials according to a proportion to form mixed liquid corresponding to different parts of the sole of a human body;
s3: filling the mixed liquid corresponding to different parts of the human feet into insole molds at corresponding positions for baking, and preparing the phase-change insole after baking treatment.
The method for calculating the addition amount of the PCM phase change material corresponding to the sole parts of different people in the polyurethane foaming material comprises the following steps of:
dividing different parts of the insole according to the use condition of the insole and the carrying capacity of the polyurethane foaming material on the PCM phase change material, and calculating the pressure and the volume born by the different parts of the insole;
the mass of the PCM phase change material added to different parts of the insole is calculated according to the pressure and the volume born by the different parts of the insole so as to determine the addition proportion of the PCM phase change material corresponding to the sole parts of different people in the polyurethane foaming material.
Wherein, mix polyurethane foam material and PCM phase change material and form the mixed solution of corresponding people's foot different positions including:
carrying out surface treatment on PCM phase change materials corresponding to different parts of the sole of a human foot;
adding the processed PCM phase change material into the polyurethane foaming material according to a proportion, and blending the material into a dispersing agent;
the mixture was heated and stirred.
Filling the mixed liquid corresponding to different parts of the human foot into corresponding insole molds for baking, and manufacturing the phase-change insole comprises the following steps:
pouring the mixed liquid corresponding to different parts of the human feet into corresponding insole molds to be connected together, and pressing and flattening the mixture at the adjacent positions when the mixture is not dried at the connecting positions;
controlling the drying temperature to be lower than the phase-change temperature according to the thickness of the phase-change insole, controlling the drying time according to the drying state of the mixture, setting an initial drying temperature according to the drying state of the mixture when the drying temperature is controlled, and repeatedly adjusting the drying temperature until the surface humidity and/or the color change value of the mixture is equal to a preset threshold value when the surface humidity and/or the color change value of the mixture is smaller than the expected threshold value to obtain the drying time of the mixture;
and after drying, cooling the phase change insoles, and processing to prepare the phase change insoles.
Specifically, the pressure and the bearing force of different parts of the insole are different, and different parts of the insole can be divided according to the service condition of the insole and the bearing capacity of the polyurethane foaming material on the PCM phase change material:
sole front sole area: this area is typically subjected to the greatest amount of pressure and is required to provide support and cushioning to reduce impact on the ball of the foot. Therefore, the PCM phase change material is added in the area to provide better supporting and buffering effects, so that the sole is more comfortable;
heel region of insole: the relatively small area of this area needs to be able to withstand higher forces and therefore generally needs to provide greater stability and support. Adding PCM phase change material in this area can increase the stability of the insole and reduce heel pressure;
middle region of the insole: the region is positioned between the insole and the sole, proper support and comfort are required to be provided, and the addition of the PCM phase change material to the region can increase the comfort of the sole and help provide better support and stability;
full sole region of the insole: the area needs to provide supporting and buffering effects to reduce impact on soles, and the addition of the PCM phase change material in the area can provide better supporting and buffering effects and make the soles which are in full contact with the ground more comfortable;
after division, according to the pressure and the volume born by different parts of the insole, the mass of the PCM phase change material to be added at each part can be calculated so as to determine the addition proportion of the PCM phase change material to be added in the polyurethane foaming material at the sole parts of different people: in this embodiment, taking a running shoe insole of a male 42 yards as an example, calculation is performed:
sole front sole area: assume that the area of the region is 55cm 2 The total force experienced by this area was 300N and the pressure in this area was calculated as: p_front=f_front/a_front=300N/55 cm 2 =5.45 kPa. Where F_front is the total force experienced by the region, A_front is the area of the region, assuming a volume of 35cm 3 Assuming that the region requires addition of a PCM phase change material having a phase transition temperature of 35℃and a phase transition temperature of 190J/g, the density of the PCM phase change material is 1.5g/cm 3 . The mass of PCM phase change material that should be added to this region is: m_pcm=c_pcm×v_pcm×ρ_pcm=190J/g×35cm 3 ×1.5g/cm 3 9.975g, where c_PCM is the phase change per unit mass of the PCM phase change material and V_PCM is the PCM phase change material added to the siteThe volume of the material, ρ_pcm is the density of the PCM phase change material;
heel region of insole: assuming that the area of the region is 40cm 2 The total force to which the region is subjected is 200N, and the pressure of the region can be calculated as: p_heel=f_heel/a_heel=200n/40 cm 2 =5.0 kPa. Where F_heel is the total force experienced by the region, A_heel is the area of the region, assuming a volume of 30cm 3 Assuming that the region requires addition of a PCM phase change material having a phase transition temperature of 40℃and a phase transition temperature of 200J/g, the density of the PCM phase change material is 1.5g/cm 3 . The mass of PCM phase change material that should be added to this region is: m_pcm=c_pcm×v_pcm×ρ_pcm=200J/g×30cm 3 ×1.5g/cm 3 ＝9g。
Middle region of the insole: assuming that the area of the region is 60cm 2 The total force experienced by this area was 150N and the pressure in this area was calculated as: p_mid=f_mid/a_mid=150n/60 cm 2 =2.5 kPa. Where F_mid is the total force experienced by the region, A_mid is the area of the region, assuming a volume of 25cm 3 Assuming that the region requires addition of a PCM phase change material having a phase transition temperature of 37℃and a phase transition temperature of 180J/g, the density of the PCM phase change material is 1.5g/cm 3 . The mass of PCM phase change material that should be added to this region is: m_pcm=c_pcm×v_pcm×ρ_pcm=180J/g×25cm 3 ×1.5g/cm 3 ＝6.75g。
Full sole region of the insole: assume that the area of the region is 140cm 2 The total force experienced by this area was 800N and the pressure in this area was calculated as: p_total=f_total/a_total=800N/140 cm 2 =5.71 kPa. Where F_total is the total force experienced by the region, A_total is the area of the region, assuming a volume of 70cm 3 Assuming that the region requires addition of a PCM phase change material having a phase transition temperature of 33℃and a phase transition temperature of 170J/g, the density of the PCM phase change material is 1.5g/cm 3 . The mass of PCM phase change material that should be added to this region is: m_pcm=c_pcm×v_pcm×ρpcm=170J/g×70cm 3 ×1.5g/cm 3 ＝17.85g。
The PCM phase change materials corresponding to different parts of the sole of a human foot are subjected to surface treatment, for example, the surface modification or the coupling agent treatment can be carried out, the operation can be carried out by adopting organic compounds such as a silane coupling agent, benzene disulfide and the like, when the aromatic ring products are modified to the surface of PCMs, the aromatic ring products can play a role of mutual combination, so that the compatibility and the dispersibility of the PCMs are improved, and the coupling agents such as methacryloxyethyltrimethyl thiadiazole (MPTS), 3-aminopropanesulfonic Acid (APS) and the like can be adopted to carry out the surface modification, so that the aromatic ring products can be mutually combined with polar functional groups existing in polyurethane, and better contact and adhesion conditions are provided for the surface of the materials;
according to the polyurethane foaming material and the PCM phase change material of 2 to 4:1, adding the treated PCM phase change material into the polyurethane foaming material according to the proportion, and mixing with a dispersing agent, wherein polymethyl methacrylate (PMMA), sodium carboxymethylcellulose (CMC-Na), sodium eicosabesylate (SDS) and the like can be adopted, PMMA has excellent compatibility and high dispersibility, CMC-Na has excellent solubility and adhesiveness when preparing the polyurethane/PCM mixing material, excellent dispersing effect can be achieved when the PCM phase change material and polyurethane are mixed, and SDS is a high-efficiency ionic surfactant, so that the dispersibility and the solubility between the polyurethane and the PCM phase change material can be greatly improved;
heating and stirring the mixed solution, for example, heating and stirring for 20-40 min at a low speed by adopting a stirrer, so that different mixtures are fully fused together to form a whole;
and pouring the mixed liquid corresponding to different parts of the human feet into corresponding insole molds to be connected together, ensuring that the mixture is uniformly filled in the whole molds, and pressing the mixture at adjacent positions to be flat when the mixture is not dried at the connecting positions, for example, pressing the mixture at the front part onto the mixture at the rear part when the mixture at the rear part is not dried, and tightly fitting to ensure that the mixture at the front part and the mixture at the rear part are contacted at the same time. The mixture at adjacent positions can be checked to be aligned and uneven by lightly pressing by hands or lightly compacting by using tools, so that the shape and the size of the whole insole are consistent with the design requirement when the adjacent mixtures are stuck together, and the surface of the mixture is leveled and smooth by using tools (such as a coating brush or a scraper), so that the elimination of any left bubbles is facilitated, the connection surface is ensured to be flat, and the appearance of the whole insole is attractive;
controlling the drying temperature to be lower than the phase-change temperature according to the thickness of the phase-change insole, controlling the drying time according to the drying state of the mixture, setting an initial drying temperature when controlling, setting the initial drying temperature according to the drying state of the mixture, repeatedly adjusting the drying temperature until the surface humidity and/or the color change value of the mixture is equal to a preset threshold value when the surface humidity and/or the color change value of the mixture is smaller than the expected threshold value to obtain the drying time of the mixture, for example, detecting the humidity of the surface of the mixture in the drying process, and when the humidity is smaller than the preset threshold value, indicating that the mixture may not be completely dried, adjusting the drying time until the humidity is equal to the preset threshold value to obtain the drying time of the mixture so as to ensure uniform drying of the mixture, and tightly adhering interface positions to avoid cracking problems;
after baking, the baked insole is cooled, taken out of the mold, and further processed, such as cutting and drilling, so that the insole is suitable for a specific shoe shape to form a phase change insole.
The embodiment also provides a phase-change insole, which is manufactured by adopting the manufacturing method of the phase-change insole.
According to the invention, the PCM phase change materials are proportionally distributed and added into the polyurethane foaming material to prepare the insoles at different positions, so that the heat dissipation and perspiration amounts at different positions can be adjusted, the temperature adjustment requirements of the insoles at different positions can be met, the comfort level of the insoles can be improved, the perspiration and odor problems of feet can be reduced, the wearing experience can be improved, the phase change material insoles have longer service lives, heat can be continuously generated and absorbed, the problems of deformation, aging and the like of shoes can be prevented, and the durability of the shoes can be improved.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (7)
1. A method for manufacturing a phase change insole, the method comprising:
dividing different parts of the insole according to the use condition of the insole and the carrying capacity of the polyurethane foaming material on the PCM phase change material, and calculating the addition amount of the PCM phase change material corresponding to the sole parts of different people in the polyurethane foaming material;
mixing polyurethane foaming materials and PCM phase change materials according to a proportion to form mixed liquid corresponding to different parts of the sole of a human body;
filling the mixed liquid corresponding to different parts of the human feet into insole molds at corresponding positions for baking, and preparing the phase-change insole after baking treatment.
2. The method for manufacturing the phase-change insole according to claim 1, wherein the step of dividing different parts of the insole according to the use condition of the insole and the carrying capacity of the polyurethane foam material on the PCM phase-change material, and the step of calculating the addition amount of the PCM phase-change material corresponding to the sole parts of different people in the polyurethane foam material comprises the following steps:
dividing different parts of the insole according to the use condition of the insole and the carrying capacity of the polyurethane foaming material on the PCM phase change material, and calculating the pressure and the volume born by the different parts of the insole;
the mass of the PCM phase change material added to different parts of the insole is calculated according to the pressure and the volume born by the different parts of the insole so as to determine the addition proportion of the PCM phase change material corresponding to the sole parts of different people in the polyurethane foaming material.
3. The method for manufacturing the phase-change insole according to claim 1 or 2, wherein: the insole is divided into a half sole region, a heel region, a middle region and a full sole region.
4. The method of manufacturing a phase change insole according to claim 1, wherein the mixing the polyurethane foam material and the PCM phase change material to form a mixed solution corresponding to different parts of the human foot comprises:
carrying out surface treatment on PCM phase change materials corresponding to different parts of the sole of a human foot;
adding the processed PCM phase change material into the polyurethane foaming material according to a proportion, and blending the material into a dispersing agent;
the mixture was heated and stirred.
5. The method of manufacturing a phase change insole according to claim 1, wherein filling the mixed liquid corresponding to different parts of the human foot into the corresponding insole mold for baking, and manufacturing the phase change insole comprises:
pouring the mixed liquid corresponding to different parts of the human feet into corresponding insole molds to be connected together, and pressing and flattening the mixture at the adjacent positions when the mixture is not dried at the connecting positions;
controlling the drying temperature to be lower than the phase-change temperature according to the thickness of the phase-change insole, and controlling the drying time according to the drying state of the mixture;
and after drying, cooling the phase change insoles, and processing to prepare the phase change insoles.
6. The method of manufacturing a phase change insole according to claim 5, wherein controlling the drying time according to the drying state of the mixture comprises: setting an initial drying temperature, setting the initial drying temperature according to the drying state of the mixture, and repeatedly adjusting the drying temperature until the surface humidity and/or the color change value of the mixture is equal to a preset threshold value when the surface humidity and/or the color change value of the mixture is smaller than the expected threshold value to obtain the drying time of the mixture.
7. The phase change insole is characterized in that: the phase-change insole is manufactured by adopting the manufacturing method of the phase-change insole as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310811845.8A CN117565302A (en) | 2023-07-04 | 2023-07-04 | Phase-change insole and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310811845.8A CN117565302A (en) | 2023-07-04 | 2023-07-04 | Phase-change insole and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117565302A true CN117565302A (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310811845.8A Pending CN117565302A (en) | 2023-07-04 | 2023-07-04 | Phase-change insole and manufacturing method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN117565302A (en) |
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2023
- 2023-07-04 CN CN202310811845.8A patent/CN117565302A/en active Pending
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