A thin, sweatband rubber interlayer sheet for athletic apparel and method of making the same

Abstract

The present application relates to the technical field of rubber, and discloses a thin sweat-through rubber interlayer sheet for sports clothing and a preparation method thereof, which comprises the following steps: S1: uniformly mixing a rubber matrix, a structure control agent, thermally responsive phase change microcapsules, heat-expandable foaming microcapsules and an additive in a banbury mixer to obtain a mixed rubber; S2: calendering the mixed rubber after thin pass mixing to obtain a non-vulcanized rubber sheet with a thickness of 0.3-0.8 mm; S3: forming a closed-cell foaming structure after continuous heating and pressurizing treatment, and simultaneously causing the rubber to be pre-vulcanized to obtain a foaming rubber sheet; and S4: compounding the foaming rubber sheet as an intermediate layer with a surface layer cloth and an inner layer skin-friendly cloth respectively, and cutting to obtain a thin sweat-through rubber interlayer sheet for sports clothing. The sheet prepared by the present application can promote sweat-through at low temperature by keeping warm and storing heat, and automatically switch to heat dissipation at high temperature to prevent overheating, and solves the problems of fixed heat conductivity of traditional sweat-through rubber sheets, and the problem that heat preservation and air permeability cannot be considered simultaneously.

Description

Technical Field

[0001] This invention relates to the technical field of rubber, and more particularly to a thin, sweat-wicking rubber interlayer sheet for sportswear and its preparation method. Background Technology

[0002] In recent years, sweat-inducing sportswear has gained widespread consumer attention due to its ability to promote perspiration, accelerate metabolism, and aid in weight management by increasing the skin's microenvironment temperature. The core functional material of this type of clothing is a thin rubber foam sandwich sheet, typically made primarily of neoprene (CR) or styrene-butadiene rubber (SBR). Through chemical or physical foaming, a closed-cell structure is formed, utilizing the low thermal conductivity of the still air within the pores to prevent heat loss to the outside, causing heat to accumulate on the skin surface and creating a localized "microclimate heating" effect. This, in turn, promotes sweating and heat dissipation, achieving the "sweat-inducing" effect. To balance wearing comfort and freedom of movement, this sheet is usually made into a thin structure and laminated with elastic fabric to form a three-layer composite sheet.

[0003] However, existing sweat-inducing rubber sandwich sheets have the following technical defects: the thermal conductivity of traditional sweat-inducing sheets is determined by their microstructure and remains fixed once formed. Increased exercise intensity can lead to localized overheating due to the fixed insulation structure, causing stuffiness, discomfort, and even the risk of heat stress. Furthermore, "insulation" and "heat dissipation" cannot be simultaneously achieved in existing material systems. To alleviate stuffiness, existing technologies generally employ physical perforation, but this essentially sacrifices the integrity of the closed-cell structure and insulation performance. Moreover, the bidirectional channels easily allow external moisture to seep back to the skin, resulting in stickiness and discomfort. In addition, existing sweat-inducing materials are entirely passive and lack the ability to automatically adjust thermal conductivity according to changes in body temperature, severely affecting the consistency of exercise experience and sweat-inducing effect. To address these problems, there is an urgent need in this field for a sweat-inducing rubber sandwich sheet capable of automatically switching between insulation and heat dissipation states based on changes in body temperature, and its preparation method. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a method for preparing a thin sweat-absorbing rubber interlayer sheet for sportswear, so as to solve the technical problems of fixed and unadjustable thermal conductivity and irreconcilable contradiction between heat preservation and breathability in traditional sweat-absorbing rubber sheets.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A method for preparing a thin, sweat-wicking rubber interlayer sheet for sportswear, the method comprising the following steps: S1: The rubber matrix, structure control agent, thermo-responsive phase change microcapsules, thermal expansion foaming microcapsules and additives are mixed evenly in an internal mixer to obtain a compound rubber. S2: The compound obtained in step S1 is thinly mixed on an open mill and then calendered into uncured rubber sheets with a thickness of 0.3 to 0.8 mm by a three-roll calender. S3: The unvulcanized rubber sheet obtained in step S2 is subjected to continuous heating and pressurization on a drum vulcanizing machine, so that the thermal expansion type foamed microcapsules expand and form a closed-cell foamed structure in the rubber matrix, while the rubber is pre-vulcanized to obtain foamed rubber sheet. S4: The foamed rubber sheet obtained in step S3 is used as the middle layer and laminated with the surface fabric and the inner skin-friendly fabric respectively by hot melt adhesive film or hot pressing. After cutting, the thin sweat-absorbing rubber interlayer sheet for sportswear is obtained.

[0006] As a preferred technical solution, the mass ratio of the rubber matrix, structure control agent, thermo-responsive phase change microcapsule, thermal expansion foaming microcapsule and additive is 100: (1-5): (8-15): (3-7): (5-10).

[0007] As a preferred technical solution, the rubber matrix is ​​a blend of chloroprene rubber and silicone rubber, wherein the chloroprene rubber accounts for 60-80 wt% and the silicone rubber accounts for 20-40 wt%.

[0008] As a preferred technical solution, the structure control agent is at least one of low molecular weight hydroxyl silicone oil, diphenylsilanediol, methylphenyldiethoxysilane, and tetramethylethylenedioxydimethylsilane.

[0009] As a preferred technical solution, the thermoresponsive phase change microcapsule has a double-layer core-shell structure; the core material is n-eicosane, the inner capsule wall is a copolymer of styrene and fluorinated vinyl, and the outer capsule wall is a copolymer of adamantane diamine and formaldehyde; the phase change temperature of the thermoresponsive phase change microcapsule is 35-38℃.

[0010] As a preferred technical solution, the fluorinated ethylene is at least one of vinylidene fluoride, tetrafluoroethylene, and trifluorochloroethylene.

[0011] As a preferred technical solution, the adamantane diamine is at least one of 1,3-adamantane diamine, 1,3-adamantane diethylamine, and adamantane-1,3-dimethylamine.

[0012] As a preferred technical solution, the core material of the thermally expandable foamed microcapsule is at least one of isopentane, isooctane or isododecane, and the capsule wall material is acrylonitrile-methyl methacrylate copolymer.

[0013] As a preferred technical solution, the additives include reinforcing agents, crosslinking agents, and vulcanization activators.

[0014] Another aspect of the present invention is to provide a thin, sweat-wicking rubber interlayer sheet for sportswear, wherein the sweat-wicking rubber interlayer sheet is prepared by the preparation method of the thin, sweat-wicking rubber interlayer sheet for sportswear described above.

[0015] The beneficial effects of this invention are: This invention discloses a method for preparing thin, sweat-wicking rubber interlayer sheets for sportswear. By innovatively introducing both thermoresponsive phase-change microcapsules and thermally expandable foaming microcapsules into the rubber matrix, the method achieves not only efficient heat retention and insulation at low temperatures to promote sweating, but also automatic heat dissipation at high temperatures to prevent localized overheating. This design enhances the sheet's intelligent thermal management capabilities while maintaining dynamic breathability without physical perforation, effectively avoiding the inherent contradiction between "heat retention" and "breathability" in traditional perforation processes, thus contributing to improved comfort and safety during exercise.

[0016] Specifically: First, this invention employs thermoresponsive phase change microcapsules with a phase change temperature of 35–38°C, causing the thermal conductivity of the sheet to undergo a nonlinear transition with changes in body temperature. When the body temperature is below the phase change threshold, the capsule core is solid, and the sheet's thermal conductivity remains at a low level, ensuring the heat preservation and heat storage effect of the closed-cell structure and promoting profuse sweating. When the body temperature reaches the phase change threshold, the capsule core melts, absorbs heat, and expands in volume. The expansion stress is transferred through the capsule wall to the adjacent cell walls, causing the cell walls to thin under pressure and reducing thermal resistance. At the same time, the thermal conductivity of the liquid phase change material is higher than that of its solid state, enhancing the interfacial heat transfer between the capsule core and the rubber matrix. The overall thermal conductivity of the sheet reversibly increases, achieving an intelligent switch from "profuse sweating and heat preservation" to "active heat dissipation." When the body temperature falls back below the phase change threshold, the capsule core solidifies and shrinks, the cells rebound and recover, and the sheet's thermal conductivity returns to a low level. The above-mentioned heat preservation / heat dissipation switching process is completely reversible and can be repeatedly cycled according to changes in body temperature. Combined with the fatigue resistance properties of the double-layer core-shell structure, it ensures the consistency of the sweating effect and the stability of long-term use.

[0017] Secondly, the dual-layer core-shell structure of the phase change microcapsules in this invention—an inner layer of styrene-fluorinated vinyl copolymer and an outer layer of adamantane diamine-formaldehyde copolymer—endows the microcapsules with excellent heat resistance, chemical stability, and mechanical strength. The introduction of the fluorinated vinyl monomer significantly reduces the surface energy of the capsule wall, improving the uniformity of microcapsule dispersion in the rubber matrix; the outer layer of the adamantane diamine-formaldehyde copolymer has a rigid cage-like adamantane structure, which can effectively resist shear forces and thermal history during rubber mixing, calendering, and vulcanization, ensuring the structural integrity and functional continuity of the microcapsules during processing. Simultaneously, this dual-layer structure is less prone to fatigue cracking during phase change cycling, ensuring the durability and stability of the sheet material during long-term use.

[0018] Third, this invention uses thermally expandable foaming microcapsules to expand and foam in situ during the vulcanization stage, replacing traditional chemical foaming agents. This results in a fine closed-cell structure with uniform pore size and a closed-cell rate of ≥90%, avoiding the deteriorating effect of chemical foaming agent residues on rubber performance. At the same time, the foaming ratio is controllable, ensuring the requirements for thinner sheet material (total thickness 2.5-5.0 mm) and lighter weight.

[0019] Fourth, the present invention uses a blend of chloroprene rubber and silicone rubber as the rubber matrix, which takes into account the high strength and weather resistance of chloroprene rubber and the excellent heat resistance and flexibility of silicone rubber. This allows the sheet to maintain good elastic recovery and structural integrity after repeated stretching and bending, meeting the stringent requirements of sportswear for material durability.

[0020] In summary, the thin, sweat-wicking rubber interlayer sheet for sportswear of the present invention not only possesses excellent functions such as intelligent temperature control response, high on / off thermal conductivity switching, and dynamic breathability without physical punching, but also has a manufacturing process that is highly compatible with existing rubber foam sheet production lines and is easy to mass-produce industrially, thus meeting the comprehensive needs of sportswear for functionality, comfort, and long-term durability. Detailed Implementation

[0021] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Example 1: This example provides a method for preparing a thin, sweat-wicking rubber interlayer sheet for sportswear, which includes the following steps: S1: By weight, add 80 parts of chloroprene rubber and 20 parts of methyl vinyl silicone rubber to a mixer and mix at 90°C for 5 minutes; then add 5 parts of low-molecular-weight hydroxyl silicone oil as a structure control agent and 5 parts of fumed silica as a reinforcing agent, and mix at 110°C for 10 minutes; then add 2 parts of zinc oxide, 1 part of magnesium oxide, and 2 parts of dicumyl peroxide as a vulcanizing activator, and mix for 3 minutes. After mixing, discharge the rubber and spread it out on a two-roll mill to cool to below 60°C; then add 10 parts of thermoresponsive phase change microcapsules. Five parts of thermally expandable foamed microcapsules were mixed under large roller gap and low shear conditions for 3 minutes until the microcapsules were evenly dispersed to obtain a compound. The thermally responsive phase change microcapsules have a double core-shell structure, with n-eicosane as the core material, styrene-vinylidene fluoride copolymer as the inner shell, and 1,3-adamantanediamine-formaldehyde copolymer as the outer shell. The phase change temperature of the microcapsules is 37°C and the average particle size is 15 μm. The thermally expandable foamed microcapsules have isooctane as the core material and acrylonitrile-methyl methacrylate copolymer as the shell material.

[0023] S2: Transfer the compound obtained in step S1 to a two-roll mill and perform thin-pass mixing at 50°C for 3 passes. Then, calender the mixture into an uncured rubber sheet with a thickness of 0.5 mm using a three-roll calender.

[0024] S3: The uncured rubber sheet obtained in step S2 is fed into a drum vulcanizing machine and subjected to continuous heating and pressurization treatment at 160℃ and 1.2MPa for 10 minutes. During this process, the thermally expandable foamed microcapsules expand under heat, forming a uniform and dense closed-cell foamed structure in the rubber matrix. The foaming ratio is 2.5 times and the closed-cell rate is ≥90%. At the same time, dicumyl peroxide decomposes and initiates cross-linking, causing the rubber to undergo pre-curing and obtain foamed rubber sheet. After the treatment, the sheet is naturally cooled to below 40℃ to solidify the phase change microcapsule core.

[0025] S4: Using the foamed rubber sheet obtained in step S3 as the middle layer, EVA hot melt adhesive film is laid on its upper and lower sides respectively, and then covered with warp-knitted spandex elastic fabric as the surface fabric and inner skin-friendly fabric respectively. It is sent into a hot press laminating machine and hot-pressed at 130℃ and 1.0MPa pressure for 5 minutes. After hot pressing, it is cooled and shaped to below 40℃ to obtain a three-layer composite sheet. Then, it is cut into the specified shape and size according to the design requirements to obtain the finished thin sweat-absorbing rubber sandwich sheet for sportswear. The total thickness of the finished product is 3.0mm.

[0026] The specific preparation method of the thermoresponsive phase change microcapsules is as follows: S11: Mix n-eicosane and styrene at a mass ratio of 1:0.4, add benzoyl peroxide (2% of the total monomer mass) as an initiator, and stir to dissolve at 45°C to form an oil phase solution; dissolve sodium dodecyl sulfate and polyvinyl alcohol in deionized water at a mass ratio of 1:2 to prepare an aqueous phase solution with a total emulsifier concentration of 3wt%; in a high-speed shear emulsifier, slowly add the oil phase to the aqueous phase at a mass ratio of 1:4, and emulsify and disperse at 12000 rpm for 15 min to form a fine emulsion; S12: The fine emulsion obtained in step S11 is transferred to a high-pressure reactor equipped with a stirrer. Vinylidene fluoride gas is introduced into the reactor to a pressure of 0.6 MPa. The fine emulsion polymerization reaction is carried out at a temperature of 75°C and a stirring rate of 300 rpm for 8 hours, so that styrene and vinylidene fluoride copolymerize at the oil-water interface to form microcapsules with poly(styrene-vinylidene fluoride) copolymer as the inner wall. S13: Add 1,3-adamantanediamine and formaldehyde aqueous solution to the reaction system of step S12. The molar ratio of 1,3-adamantanediamine to formaldehyde is 1:2.5. Adjust the pH of the system to 8.5 and continue the reaction at 85°C for 5 hours to allow 1,3-adamantanediamine and formaldehyde to undergo a condensation reaction, and further crosslink and polymerize on the surface of the inner layer of the microcapsule to form a poly(1,3-adamantanediamine-formaldehyde) outer layer. S14: After the reaction is complete, the product is cooled to room temperature and washed four times with deionized water and anhydrous ethanol. It is then vacuum dried at 45°C for 18 hours to obtain the thermo-responsive phase change microcapsule product with an average particle size of 15 μm, a phase change temperature of 37°C, and a latent heat of phase change of 135 J / g.

[0027] The specific preparation method of the thermally expandable foamed microcapsules is as follows: S21: Acrylonitrile and methyl methacrylate are mixed at a mass ratio of 55:45. Benzoyl peroxide (0.5% of the total monomer mass) is added as an initiator and divinylbenzene (0.8% of the total monomer mass) is added as a crosslinking agent. The mixture is stirred evenly to form an oil phase. Magnesium hydroxide is dispersed in deionized water as a dispersant to prepare an aqueous suspension with a concentration of 3wt%. S22: Add isooctane as the core material to the oil phase obtained in step S21. The mass ratio of isooctane to monomer is 30:100. Stir and dissolve evenly at room temperature to form an oil phase mixture containing foaming agent. S23: Slowly add the oil phase mixture obtained in step S22 to the aqueous phase suspension obtained in step S21. The mass ratio of the aqueous phase to the oil phase is 3:1. Emulsify and disperse at high speed at 8000 rpm for 15 min to form a uniform suspension emulsion. S24: The suspension emulsion obtained in step S23 is transferred to a four-necked flask equipped with a condenser, thermometer and stirring device, and a suspension polymerization reaction is carried out at 60°C and 400 rpm for 8 hours, so that acrylonitrile and methyl methacrylate copolymerize on the surface of oil droplets to form thermally expandable foamed microcapsules with poly(acrylonitrile-methyl methacrylate) copolymer as the capsule wall and isooctane as the capsule core. S25: After the reaction is complete, the product is cooled to room temperature, washed three times with deionized water, filtered and separated, and vacuum dried at 50°C for 12 hours to obtain the thermally expandable foamed microcapsule product with an average particle size of 25 μm.

[0028] Example 2: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this example, tetrafluoroethylene is used instead of vinylidene fluoride.

[0029] Example 3: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this example, trifluorochloroethylene is used instead of vinylidene fluoride.

[0030] Example 4: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this example, 1,3-adamantanediamine is used instead of 1,3-adamantanediamine.

[0031] Example 5: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this example, adamantane-1,3-dimethylamine is used instead of 1,3-adamantanediamine.

[0032] Example 6: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this example, the core material of the thermally expandable foamed microcapsule is isopentane, and the rest is the same as in Example 1.

[0033] Example 7: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this example, the structure control agent is 1 part, the amount of thermally responsive phase change microcapsules is 8 parts, the amount of thermally expandable foaming microcapsules is 3 parts, and the additives are 5 parts (of which, silicon dioxide is 2.5 parts, zinc oxide is 1 part, magnesium oxide is 0.5 parts and dicumyl peroxide is 1 part).

[0034] Example 8: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this example, the structure control agent is 5 parts, the amount of thermo-responsive phase change microcapsules is 15 parts, the amount of thermally expandable foaming microcapsules is 7 parts, and the auxiliary agent is 7 parts (of which, there are 3 parts of silicon dioxide, 1.5 parts of zinc oxide, 1 part of magnesium oxide and 1.5 parts of dicumyl peroxide).

[0035] Comparative Example 1: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this comparative example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that the thermo-responsive phase change microcapsules are not added in the preparation method of this comparative example, and the rest is the same as that in Example 1.

[0036] Comparative Example 2: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this comparative example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this comparative example, 4 parts of azodicarbonamide chemical foaming agent are used to replace the thermally expandable foaming microcapsules, and the rest is the same as in Example 1.

[0037] Comparative Example 3: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this comparative example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this comparative example, the rubber matrix is ​​100 parts of chloroprene rubber and no methyl vinyl silicone rubber is added. The rest is the same as in Example 1.

[0038] Comparative Example 4: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this comparative example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this comparative example, the core material of the thermo-responsive phase change microcapsule is n-dodecane, and the phase change temperature of the microcapsule is 44°C. The rest is the same as in Example 1.

[0039] Comparative Example 5: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this comparative example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this comparative example, after the sheet is prepared according to Example 1, it is subjected to physical punching treatment (hole diameter 1mm, hole spacing 5mm), and the rest is the same as in Example 1.

[0040] Comparative Example 6: The preparation method of the thin sweat-absorbing rubber interlayer sheet for sportswear in this comparative example is basically the same as that in Example 1 in terms of raw material composition and preparation steps. The difference is that in the preparation method of this comparative example, commercially available neoprene foam sweat-absorbing sheet (chemical foaming) is directly used as the control sample, and the preparation method of the present invention is not used.

[0041] The thin, sweat-wicking rubber interlayer sheets for sportswear prepared in Examples 1-8 and Comparative Examples 1-6 were subjected to performance tests, and the performance results are shown in Table 1: Among them, the closed-cell ratio was determined by the gas volume replacement method; the thermal conductivity was determined by the transient planar heat source method (Hot Disk method), with a low temperature test temperature of 25℃ and a high temperature test temperature of 42℃ (simulating the microenvironment temperature of the skin surface under motion). The thermal conductivity on / off ratio is the ratio of high temperature thermal conductivity to low temperature thermal conductivity; the method for determining the resilience retention rate is as follows: the sheet is subjected to 50 compression-recovery cycles at 23℃ with 50% compressive strain, and the resilience rate is measured. The retention rate is calculated with the initial resilience rate before the cycle as 100%.

[0042] Table 1

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A method for preparing a thin, sweat-wicking rubber interlayer sheet for sportswear, characterized in that, The preparation method includes the following steps: S1: The rubber matrix, structure control agent, thermo-responsive phase change microcapsules, thermal expansion foaming microcapsules and additives are mixed evenly in an internal mixer to obtain a compound rubber. S2: The compound obtained in step S1 is thinly mixed on an open mill and then calendered into uncured rubber sheets with a thickness of 0.3 to 0.8 mm by a three-roll calender. S3: The unvulcanized rubber sheet obtained in step S2 is subjected to continuous heating and pressurization on a drum vulcanizing machine, so that the thermal expansion type foamed microcapsules expand and form a closed-cell foamed structure in the rubber matrix, while the rubber is pre-vulcanized to obtain foamed rubber sheet. S4: The foamed rubber sheet obtained in step S3 is used as the middle layer and laminated with the surface fabric and the inner skin-friendly fabric respectively by hot melt adhesive film or hot pressing. After cutting, the thin sweat-absorbing rubber interlayer sheet for sportswear is obtained.

2. The method for preparing the thin, sweat-wicking rubber interlayer sheet for sportswear as described in claim 1, characterized in that, The mass ratio of the rubber matrix, structure control agent, thermo-responsive phase change microcapsule, thermally expandable foaming microcapsule and additive is 100: (1-5): (8-15): (3-7): (5-10).

3. The method for preparing the thin, sweat-wicking rubber interlayer sheet for sportswear as described in claim 1, characterized in that, The rubber matrix is ​​a blend of chloroprene rubber and silicone rubber, wherein the chloroprene rubber accounts for 60-80 wt% and the silicone rubber accounts for 20-40 wt%.

4. The method for preparing the thin, sweat-wicking rubber interlayer sheet for sportswear as described in claim 1, characterized in that, The structure control agent is at least one of low molecular weight hydroxyl silicone oil, diphenylsilanediol, methylphenyldiethoxysilane, and tetramethylethylenedioxydimethylsilane.

5. The method for preparing the thin, sweat-wicking rubber interlayer sheet for sportswear as described in claim 1, characterized in that, The thermo-responsive phase change microcapsule has a double core-shell structure; the core material is n-eicosane, the inner capsule wall is a copolymer of styrene and fluorinated vinyl, and the outer capsule wall is a copolymer of adamantane diamine and formaldehyde; the phase change temperature of the thermo-responsive phase change microcapsule is 35-38℃.

6. The method for preparing the thin, sweat-wicking rubber interlayer sheet for sportswear as described in claim 5, characterized in that, The fluorinated ethylene is at least one of vinylidene fluoride, tetrafluoroethylene, and trifluorochloroethylene.

7. The method for preparing the thin, sweat-wicking rubber interlayer sheet for sportswear as described in claim 5, characterized in that, The adamantane diamine is at least one of 1,3-adamantane diamine, 1,3-adamantane diethylamine, and adamantane-1,3-dimethylamine.

8. The method for preparing the thin, sweat-wicking rubber interlayer sheet for sportswear as described in claim 1, characterized in that, The core material of the thermally expandable foamed microcapsule is at least one of isopentane, isooctane, or isododecane, and the wall material is acrylonitrile-methyl methacrylate copolymer.

9. The method for preparing the thin, sweat-wicking rubber interlayer sheet for sportswear as described in claim 1, characterized in that, The additives include reinforcing agents, crosslinking agents, and vulcanization activators.

10. A thin, sweat-wicking rubber interlayer sheet for sportswear, characterized in that, The sweat-inducing rubber interlayer sheet is prepared using the method for preparing thin sweat-inducing rubber interlayer sheets for sportswear as described in any one of claims 1 to 9.

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