BQTS far infrared physiotherapy material and preparation method thereof

Abstract

The invention belongs to the technical field of physiotherapy rehabilitation, and particularly relates to a BQTS far infrared physiotherapy material which comprises a flexible heating layer, a heating layer arranged on one side of the flexible heating layer and a waveguide resonance layer arranged on one side of the heating layer. By optimizing and improving the material structure of the heating layer, the radiation ratio of the far infrared wave band of 8-14 microns generated by the heating layer is increased, an efficient window is absorbed at 8-14 microns to output a peak value, the infrared absorption efficiency of deep tissues is remarkably enhanced, and superheat of the surface layer is reduced; through the design of the waveguide resonance layer, only 8-14 [mu] m wave bands can be allowed to pass through, stray wavelengths are filtered, the energy density of a target wave band is improved, energy can touch deeper muscles or connective tissues, and the physiotherapy rehabilitation effect is improved.

Description

Technical Field

[0001] This application relates to the field of physiotherapy and rehabilitation technology, specifically to a BQTS far-infrared physiotherapy material and its preparation method. Background Technology

[0002] BQTS (Balmy Quantum Temperature Science) is a nano-quantum thermal wave penetration technology that releases far-infrared rays by electrifying a material plate. By irradiating the human body with far-infrared rays, it helps patients with physical therapy and rehabilitation.

[0003] According to existing clinical research and experimental verification, the effects of far-infrared rays in the field of physiotherapy and rehabilitation are mainly reflected in the relief of pain in chronic musculoskeletal diseases, promotion of blood circulation and tissue repair, wound healing and tissue regeneration, and improvement of sleep quality. Although the current BQTS far-infrared physiotherapy material can release far-infrared rays to achieve the effects of far-infrared physiotherapy and rehabilitation, most products on the market have a wide radiation band, mostly between 4-28μm, but only the 8-14μm band can be efficiently absorbed by the human body (accounting for 40-60% of the skin radiation energy). As for the other bands of energy that cannot be absorbed by the human body, they are absorbed in the superficial tissue (<2mm) and cannot penetrate into muscles or joints. At the same time, due to severe scattering by clothing, epidermal moisture and fat layer, the surface temperature of ordinary carbon fiber, electric heating wire or PTC ceramic heating layer is often maintained at 50-60℃. This results in the energy being mainly consumed in the subcutaneous 1-2mm range. Most of the energy is absorbed by the epidermis and superficial dermis, making it difficult to reach deeper muscles or connective tissue, thus limiting the therapeutic effect. Summary of the Invention

[0004] The purpose of this application is to provide a BQTS far-infrared physiotherapy material and its preparation method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a BQTS far-infrared therapy material, comprising a flexible heating layer and a heating layer disposed on one side of the flexible heating layer.

[0006] It also includes a waveguide resonant layer disposed on one side of the heating layer, and the waveguide resonant layer is a silicon dioxide photonic crystal plate with a thickness of 0.1mm-0.3mm. The aperture of the silicon dioxide photonic crystal plate is 10-12μm and the duty cycle is 0.83.

[0007] The heating layer includes a bottom layer, a filter layer and a surface layer, with the filter layer located between the bottom layer and the surface layer. One side of the bottom layer is connected to the flexible heating layer, and the surface layer is connected to the waveguide resonant layer.

[0008] The bottom layer comprises the following raw materials by weight: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, ZrO2 microspheres 5-15%, tourmaline powder 20-40%, activated carbon powder 5-15%, and erbium oxide 5-15%.

[0009] The filter layer comprises the following raw materials by weight ratio: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, aluminum nitride 5-15%, tourmaline powder 20-40%, activated carbon powder 5-15%, and thulium oxide 5-15%.

[0010] The surface layer comprises the following raw materials by weight: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, boron nitride 5-15%, tourmaline powder 20-40%, activated carbon powder 5-15%, and holmium oxide 5-15%.

[0011] Preferably, the heating layer has 100nm–1μm porous channels inside to increase the number of internal reflections of infrared radiation.

[0012] Preferably, a microporous ceramic heat dissipation layer is provided on one side of the waveguide resonant layer. The microporous ceramic heat dissipation layer is a porous alumina ceramic with a pore size of 50-100μm and is coated with a 1mm graphene thermal conductive coating on its surface.

[0013] Preferably, the opening of the pores in the microporous ceramic heat dissipation layer is provided with a convex lens with a diameter of 10–50 μm and a height of 5–20 μm, which is used to micro-focus the planar radiation beam onto the skin surface, and the convex lens and the pores are sealed.

[0014] Preferably, an annular silicone layer is provided on one side of the microporous ceramic heat dissipation layer, and the annular silicone layer is used to form a microcavity between the fabric and the skin.

[0015] Preferably, the microcavity formed between the annular silicone layer and the skin is filled with an acoustic coupling layer, which is a coupling agent used to eliminate air gaps and reduce interface reflection loss.

[0016] Preferably, a flexible thin film is disposed inside the waveguide resonant layer, and the flexible thin film is PVDF or flexible PZT thin film. The flexible thin film is arranged in a grid or ring unit array inside the waveguide resonant layer. A vibration isolation buffer layer is disposed between the waveguide resonant layer and the heating layer to prevent the mechanical vibration of the flexible thin film from being transmitted to the infrared coating below, which would cause micro-cracks in the coating or changes in the emission characteristics. The flexible thin film is microporous silicone or soft PU foam with a micropore diameter of 50–100 μm and a thickness of 200–300 μm.

[0017] Preferably, the flexible heating layer is a graphene heating film.

[0018] A method for preparing BQTS far-infrared therapy material includes the following steps:

[0019] Step 1: Use graphene heating film as the basic heating element;

[0020] Step 2: Mix the following by weight: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, ZrO2 microspheres 5-15%, tourmaline powder 20-40%, activated carbon powder 5-15%, and erbium oxide 10%. Stir until a uniform slurry is formed and coated onto the surface of the flexible heating layer. Before curing, embed a soluble template (NaCl microparticles, 100nm–1μm in diameter). After curing, the template dissolves to form porous channels. After the bottom layer is cured, pyrolyze to remove the soluble template. (The second step involves mixing the following by weight: PDMS 20-40%, BaTiO3 20-40%, and S...) Mix 10-30% iC, 10% aluminum nitride, 20-40% tourmaline powder, 5-15% activated carbon powder, and 10% thulium oxide into a uniform slurry. Apply the slurry to the bottom layer and embed a soluble template before curing. After curing, remove the soluble template by pyrolysis. Alternatively, mix 20-40% PDMS, 20-40% BaTiO3, 10-30% SiC, 10% boron nitride, 20-40% tourmaline powder, 5-15% activated carbon powder, and 10% holmium oxide by weight into a uniform slurry. Apply the slurry to the filter layer and embed a soluble template before curing. After curing, remove the soluble template by pyrolysis.

[0021] Step 3: Using a silicon dioxide photonic crystal plate with a thickness of 0.1mm-0.3mm, a pore size of 10-12μm, and a duty cycle of 0.83, cut PVDF or flexible PZT films into a grid / ring array, connect conductive lines to the PVDF or flexible PZT films, embed the PVDF or flexible PZT films inside the photonic crystal plate and make the conductive lines extend outward from inside the photonic crystal plate, lay microporous silicone or soft PU foam between the waveguide layer and the heating layer, and connect the microporous silicone or soft PU foam to the waveguide layer and the heating layer by adhesive bonding.

[0022] Step 4: Using porous alumina ceramic, a microporous structure with a pore size of 50-100μm is formed by molding and sintering. A convex lens array with a diameter of 10-50μm and a height of 5-20μm is made by hot pressing with a micro-mold or by photocuring with resin. The convex lens array is installed at the opening of the pores of the porous alumina ceramic. The gap between the lens and the pore is sealed with epoxy resin. A 1mm thick graphene coating is applied to the surface and cured at high temperature to enhance thermal conductivity. The porous alumina ceramic is then bonded to the other side of the waveguide resonant layer with PDMS adhesive.

[0023] Step 5: Adhere an annular silicone layer to the other side of the microporous ceramic heat dissipation layer to form a microcavity structure on the skin contact surface, and fill the microcavity with medical ultrasound coupling agent to form an acoustic coupling layer;

[0024] Step 6: Perform thermo-press encapsulation on the multi-layer structure to ensure tight bonding between the interfaces of each layer and edge sealing treatment.

[0025] Compared with the prior art, the beneficial effects of this application are:

[0026] 1) This application optimizes and improves the material structure of the heating layer to increase the proportion of far-infrared radiation in the 8-14μm band, outputting peak values ​​within the 8-14μm absorption window, significantly enhancing the absorption efficiency of deep tissues for infrared radiation, reducing surface overheating, and also includes a waveguide resonance layer. When the heating layer generates far-infrared radiation, the waveguide resonance layer design allows only the 8-14μm band to pass through, filtering stray wavelengths, increasing the energy density of the target band, and enabling energy to reach deeper muscles or connective tissues, thereby improving the effect of physical therapy and rehabilitation.

[0027] 2) This application has a lens array layer. Micro-nano manufacturing technology is used to press out tiny convex lenses in batches on the surface of flexible materials. The microlenses are arranged in an array to form a lens array layer. The parallel or scattered infrared beams that come out through the waveguide resonant layer are slightly focused at the focal point of the lens. After focusing, the energy density of the beams incident on the skin surface is increased, which allows more energy to penetrate the epidermis and increases the deep thermal effect. At the same time, it can reduce the reflection loss caused by the change of incident angle. More of the light rays incident on the skin enter in the normal direction, reducing refraction and diffuse reflection, and further improving the penetration efficiency.

[0028] 3) This application includes a silicone layer, which can form a controllable negative pressure microcavity between the fabric and the skin, effectively eliminating air gaps, focusing infrared radiation and directing it onto the skin, reducing interface reflection / scattering loss, allowing infrared radiation to enter the skin more directly, and significantly improving energy coupling efficiency. It also includes an acoustic coupling layer and a flexible film. The flexible film generates ultrasonic vibration, and the acoustic coupling layer eliminates air gaps and ensures that ultrasonic energy is efficiently transmitted to the subcutaneous layer. The synchronous action of ultrasonic vibration and far-infrared radiation can temporarily open intercellular spaces and lymphatic microchannels, improve the conduction and diffusion of heat waves in the tissue, and enhance the deep diffusion of infrared radiation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this application;

[0030] Figure 2 This is a structural diagram of the heating layer in this application.

[0031] In the figure: 1. Flexible heating layer; 2. Heating layer; 21. Bottom layer; 22. Transition layer; 23. Surface layer; 3. Vibration isolation buffer layer; 4. Waveguide resonant layer; 41. Flexible thin film; 5. Microporous ceramic heat dissipation layer; 51. Lens array layer; 6. Silicone layer; 7. Acoustic coupling layer. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1-2 This application provides a technical solution:

[0034] Example 1

[0035] A BQTS far-infrared therapy material includes a flexible heating layer (graphene heating film with a temperature control system) and a heating layer disposed on one side of the flexible heating layer.

[0036] It also includes a waveguide resonant layer disposed on one side of the heating layer, and the waveguide resonant layer is a silicon dioxide photonic crystal plate with a thickness of 0.1 mm. The silicon dioxide photonic crystal plate has a pore size of 10 μm and a duty cycle of 0.83. A microporous ceramic heat dissipation layer is disposed on one side of the waveguide resonant layer. The microporous ceramic heat dissipation layer is a porous alumina ceramic with a pore size of 50 μm and is coated with a 1 mm graphene thermal conductive coating on its surface. A convex lens with a diameter of 10 μm and a height of 5 μm is disposed at the opening of the pore of the microporous ceramic heat dissipation layer to microfocus the planar radiation beam onto the skin surface, and the convex lens and the pore are sealed.

[0037] A ring-shaped silicone layer is provided on one side of the microporous ceramic heat dissipation layer. The ring-shaped silicone layer is used to form a microcavity between the fabric and the skin. The microcavity formed between the ring-shaped silicone layer and the skin is filled with an acoustic coupling layer, which is a coupling agent used to eliminate air gaps and reduce interface reflection loss. A flexible film is provided inside the waveguide resonant layer. The flexible film is PVDF or flexible PZT film. The flexible film is made into a grid or ring unit array and is provided inside the waveguide resonant layer. A vibration isolation buffer layer is provided between the waveguide resonant layer and the heating layer to prevent the mechanical vibration of the flexible film from being transmitted to the infrared coating below, which would cause micro-cracks in the coating or changes in emission characteristics. The flexible film is microporous silicone or soft PU foam with a micropore diameter of 50μm and a thickness of 200μm.

[0038] The heating layer has 1μm porous channels inside to increase the number of internal reflections of infrared radiation. The heating layer includes a bottom layer, a filter layer and a surface layer. The filter layer is located between the bottom layer and the surface layer. One side of the bottom layer is connected to the flexible heating layer, and the surface layer is connected to the waveguide resonant layer.

[0039] The bottom layer comprises the following raw materials by weight: 20% PDMS, 20% BaTiO3, 10% SiC, 5% ZrO2 microspheres, 20% tourmaline powder, 5% activated carbon powder, and 5% erbium oxide;

[0040] The filter layer comprises the following raw materials by weight: PDMS 20%, BaTiO3 20%, SiC 10%, aluminum nitride 5%, tourmaline powder 20%, activated carbon powder 5%, and thulium oxide 5%.

[0041] The surface layer comprises the following raw materials by weight: 20% PDMS, 20% BaTiO3, 10% SiC, 5% boron nitride, 20% tourmaline powder, 5% activated carbon powder, and 5% holmium oxide.

[0042] Example 2

[0043] A BQTS far-infrared therapy material includes a flexible heating layer (graphene heating film with a temperature control system) and a heating layer disposed on one side of the flexible heating layer.

[0044] It also includes a waveguide resonant layer disposed on one side of the heating layer, and the waveguide resonant layer is a silicon dioxide photonic crystal plate with a thickness of 0.2 mm. The silicon dioxide photonic crystal plate has an aperture of 11 μm and a duty cycle of 0.83. A microporous ceramic heat dissipation layer is disposed on one side of the waveguide resonant layer. The microporous ceramic heat dissipation layer is a porous alumina ceramic with an aperture of 70 μm and is coated with a 1 mm graphene thermal conductive coating on its surface. A convex lens with a diameter of 13 μm and a height of 10 μm is disposed at the opening of the pores of the microporous ceramic heat dissipation layer to microfocus the planar radiation beam onto the skin surface, and the convex lens and the pores are sealed.

[0045] A ring-shaped silicone layer is provided on one side of the microporous ceramic heat dissipation layer. The ring-shaped silicone layer is used to form a microcavity between the fabric and the skin. The microcavity formed between the ring-shaped silicone layer and the skin is filled with an acoustic coupling layer, which is a coupling agent used to eliminate air gaps and reduce interface reflection loss. A flexible film is provided inside the waveguide resonant layer. The flexible film is PVDF or flexible PZT film. The flexible film is made into a grid or ring unit array and is provided inside the waveguide resonant layer. A vibration isolation buffer layer is provided between the waveguide resonant layer and the heating layer to prevent the mechanical vibration of the flexible film from being transmitted to the infrared coating below, which would cause micro-cracks in the coating or changes in emission characteristics. The flexible film is microporous silicone or soft PU foam with a micropore diameter of 70μm and a thickness of 260μm.

[0046] The heating layer has 1μm porous channels inside to increase the number of internal reflections of infrared radiation. The heating layer includes a bottom layer, a filter layer and a surface layer. The filter layer is located between the bottom layer and the surface layer. One side of the bottom layer is connected to the flexible heating layer, and the surface layer is connected to the waveguide resonant layer.

[0047] The bottom layer comprises the following raw materials by weight: 20% PDMS, 30% BaTiO3, 20% SiC, 10% ZrO2 microspheres, 30% tourmaline powder, 10% activated carbon powder, and 10% erbium oxide;

[0048] The filter layer comprises the following raw materials by weight: PDMS 30%, BaTiO3 25%, SiC 15%, aluminum nitride 9%, tourmaline powder 31%, activated carbon powder 8%, and thulium oxide 10%.

[0049] The surface layer comprises the following raw materials by weight: PDMS 34%, BaTiO3 29%, SiC 20%, boron nitride 12%, tourmaline powder 29%, activated carbon powder 9%, and holmium oxide 10%.

[0050] Example 3

[0051] A BQTS far-infrared therapy material includes a flexible heating layer (graphene heating film with a temperature control system) and a heating layer disposed on one side of the flexible heating layer.

[0052] It also includes a waveguide resonant layer disposed on one side of the heating layer, and the waveguide resonant layer is a silicon dioxide photonic crystal plate with a thickness of 0.3 mm. The silicon dioxide photonic crystal plate has a pore size of 12 μm and a duty cycle of 0.83. A microporous ceramic heat dissipation layer is disposed on one side of the waveguide resonant layer. The microporous ceramic heat dissipation layer is a porous alumina ceramic with a pore size of 100 μm and a 1 mm graphene thermally conductive coating on its surface. A convex lens with a diameter of 50 μm and a height of 20 μm is disposed at the opening of the pore of the microporous ceramic heat dissipation layer to microfocus the planar radiation beam onto the skin surface, and the convex lens and the pore are sealed.

[0053] A ring-shaped silicone layer is provided on one side of the microporous ceramic heat dissipation layer. The ring-shaped silicone layer is used to form a microcavity between the fabric and the skin. The microcavity formed between the ring-shaped silicone layer and the skin is filled with an acoustic coupling layer, which is a coupling agent used to eliminate air gaps and reduce interface reflection loss. A flexible film is provided inside the waveguide resonant layer. The flexible film is PVDF or flexible PZT film. The flexible film is made into a grid or ring unit array and is provided inside the waveguide resonant layer. A vibration isolation buffer layer is provided between the waveguide resonant layer and the heating layer to prevent the mechanical vibration of the flexible film from being transmitted to the infrared coating below, which would cause micro-cracks in the coating or changes in emission characteristics. The flexible film is microporous silicone or soft PU foam with a micropore diameter of 100μm and a thickness of 300μm.

[0054] The heating layer has 1μm porous channels inside to increase the number of internal reflections of infrared radiation. The heating layer includes a bottom layer, a filter layer and a surface layer. The filter layer is located between the bottom layer and the surface layer. One side of the bottom layer is connected to the flexible heating layer, and the surface layer is connected to the waveguide resonant layer.

[0055] The bottom layer comprises the following raw materials by weight: PDMS 40%, BaTiO3 40%, SiC 30%, ZrO2 microspheres 15%, tourmaline powder 40%, activated carbon powder 15%, and erbium oxide 15%.

[0056] The filter layer comprises the following raw materials by weight: PDMS 40%, BaTiO3 40%, SiC 30%, aluminum nitride 15%, tourmaline powder 40%, activated carbon powder 15%, and thulium oxide 15%.

[0057] The surface layer comprises the following raw materials by weight: PDMS 40%, BaTiO3 40%, SiC 30%, boron nitride 15%, tourmaline powder 40%, activated carbon powder 15%, and holmium oxide 15%.

[0058] Example 4

[0059] A BQTS far-infrared therapy material includes a flexible heating layer (graphene heating film with a temperature control system) and a heating layer disposed on one side of the flexible heating layer.

[0060] It also includes a waveguide resonant layer disposed on one side of the heating layer, and the waveguide resonant layer is a silicon dioxide photonic crystal plate with a thickness of 0.3 mm. The silicon dioxide photonic crystal plate has a pore size of 10 μm and a duty cycle of 0.83. A microporous ceramic heat dissipation layer is disposed on one side of the waveguide resonant layer. The microporous ceramic heat dissipation layer is a porous alumina ceramic with a pore size of 70 μm and a 1 mm graphene thermal conductive coating on its surface. A convex lens with a diameter of 30 μm and a height of 10 μm is disposed at the opening of the pore of the microporous ceramic heat dissipation layer to microfocus the planar radiation beam onto the skin surface, and the convex lens and the pore are sealed.

[0061] A ring-shaped silicone layer is provided on one side of the microporous ceramic heat dissipation layer. The ring-shaped silicone layer is used to form a microcavity between the fabric and the skin. The microcavity formed between the ring-shaped silicone layer and the skin is filled with an acoustic coupling layer, which is a coupling agent used to eliminate air gaps and reduce interface reflection loss. A flexible film is provided inside the waveguide resonant layer. The flexible film is PVDF or flexible PZT film. The flexible film is made into a grid or ring unit array and is provided inside the waveguide resonant layer. A vibration isolation buffer layer is provided between the waveguide resonant layer and the heating layer to prevent the mechanical vibration of the flexible film from being transmitted to the infrared coating below, which would cause micro-cracks in the coating or changes in emission characteristics. The flexible film is microporous silicone or soft PU foam with a micropore diameter of 100μm and a thickness of 300μm.

[0062] The heating layer has 1μm porous channels inside to increase the number of internal reflections of infrared radiation. The heating layer includes a bottom layer, a filter layer and a surface layer. The filter layer is located between the bottom layer and the surface layer. One side of the bottom layer is connected to the flexible heating layer, and the surface layer is connected to the waveguide resonant layer.

[0063] The bottom layer comprises the following raw materials by weight: PDMS 25%, BaTiO3 36%, SiC 24%, ZrO2 microspheres 14%, tourmaline powder 40%, activated carbon powder 13%, and erbium oxide 13%.

[0064] The filter layer comprises the following raw materials by weight: PDMS 26%, BaTiO3 36%, SiC 25%, aluminum nitride 13%, tourmaline powder 39%, activated carbon powder 15%, and thulium oxide 15%.

[0065] The surface layer comprises the following raw materials by weight: 40% PDMS, 40% BaTiO3, 10% SiC, 15% boron nitride, 20% tourmaline powder, 5% activated carbon powder, and 10% holmium oxide.

[0066] The preparation methods of Examples 1-4 include the following steps:

[0067] Step 1: Use graphene heating film as the basic heating element;

[0068] Step 2: Mix the following by weight: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, ZrO2 microspheres 5-15%, tourmaline powder 20-40%, activated carbon powder 5-15%, and erbium oxide 10%. Stir until a uniform slurry is formed and coated onto the surface of the flexible heating layer. Before curing, embed a soluble template (NaCl microparticles, 100nm–1μm in diameter). After curing, the template dissolves to form porous channels. After the bottom layer has cured and formed, pyrolyze to remove the soluble template. (The second step involves mixing the following by weight: PDMS 20-40%, BaTiO3 20-40%, SiC...) 10-30% aluminum nitride, 10% tourmaline powder, 20-40% activated carbon powder, 5-15% thulium oxide, 10%, are stirred into a uniform slurry and coated onto the base layer. A soluble template is embedded before curing, and the soluble template is removed by pyrolysis after curing. Alternatively, PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, boron nitride 10%, tourmaline powder 20-40%, activated carbon powder 5-15%, holmium oxide 10% are mixed by weight and stirred into a uniform slurry. This slurry is coated onto the filter layer, and a soluble template is embedded before curing. The soluble template is removed by pyrolysis after curing.

[0069] Step 3: Using a silicon dioxide photonic crystal plate with a thickness of 0.1mm-0.3mm, a pore size of 10-12μm, and a duty cycle of 0.83, cut PVDF or flexible PZT films into a grid / ring array, connect conductive lines to the PVDF or flexible PZT films, embed the PVDF or flexible PZT films inside the photonic crystal plate and make the conductive lines extend outward from inside the photonic crystal plate, lay microporous silicone or soft PU foam between the waveguide layer and the heating layer, and connect the microporous silicone or soft PU foam to the waveguide layer and the heating layer by adhesive bonding.

[0070] Step 4: Using porous alumina ceramic, a microporous structure with a pore size of 50-100μm is formed by molding and sintering. A convex lens array with a diameter of 10-50μm and a height of 5-20μm is made by hot pressing with a micro-mold or by photocuring with resin. The convex lens array is installed at the opening of the pores of the porous alumina ceramic. The gap between the lens and the pore is sealed with epoxy resin. A 1mm thick graphene coating is applied to the surface and cured at high temperature to enhance thermal conductivity. The porous alumina ceramic is then bonded to the other side of the waveguide resonant layer with PDMS adhesive.

[0071] Step 5: Adhere an annular silicone layer to the other side of the microporous ceramic heat dissipation layer to form a microcavity structure on the skin contact surface, and fill the microcavity with medical ultrasound coupling agent to form an acoustic coupling layer;

[0072] Step 6: Perform thermo-press encapsulation on the multi-layer structure to ensure tight bonding between the interfaces of each layer and edge sealing treatment.

[0073] Comparative Example 1

[0074] The difference between this comparative example and Example 1 is that this comparative example only includes a flexible heating layer and a heating layer disposed on one side of the flexible heating layer. The heating layer is made of ceramic filler and mineral filler.

[0075] Comparative Example 2

[0076] The difference between this comparative example and Example 1 is that this comparative example only includes a flexible heating layer and a heating layer disposed on one side of the flexible heating layer. The heating layer is made of ceramic filler, mineral filler and rare earth ions.

[0077] According to ISO 18553:2020 "Performance evaluation method for infrared physiotherapy equipment" and ASTM E2533 "Standard for testing the thermal effects of biological tissues", Examples 1-4 and Comparative Examples 1-2 were tested, and the results are as follows:

[0078] Table 1: Comparison of basic radiation performance (FTIR spectral scanning + laser flare method)

[0079]

[0080] Table 2: Penetration Performance Test

[0081] Test structure: cotton fabric (1mm) + silicone epidermis (2mm) + fat layer (5mm) + muscle gel (10mm)

[0082]

[0083] As shown in Tables 1 and 2, compared with the ordinary BTQS far-infrared therapy materials in Comparative Examples 1-2, the BQTS far-infrared therapy materials in Examples 1-4 of this invention achieve narrow-band high radiation (12μm±0.3μm), and the energy utilization rate is improved by 76%. Furthermore, the efficiency of the BQTS in this application reaches 25.4% at 5cm (compared to only 4.2% for ordinary materials).

[0084] The foregoing has shown and described the basic principles, main features, and advantages of this application. It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or basic characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this application is defined by the appended claims rather than the foregoing description. Therefore, it is intended to encompass all variations falling within the meaning and scope of equivalents of the claims within this application, and no reference numerals in the claims should be regarded as limiting the scope of the claims.

[0085] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A BQTS far-infrared therapy material, comprising a flexible heating layer and a heating layer disposed on one side of the flexible heating layer, characterized in that: It also includes a waveguide resonant layer disposed on one side of the heating layer, and the waveguide resonant layer is a silicon dioxide photonic crystal plate with a thickness of 0.1mm-0.3mm. The aperture of the silicon dioxide photonic crystal plate is 10-12μm and the duty cycle is 0.

83. The heating layer includes a bottom layer, a filter layer and a surface layer, with the filter layer located between the bottom layer and the surface layer. One side of the bottom layer is connected to the flexible heating layer, and the surface layer is connected to the waveguide resonant layer. The bottom layer comprises the following raw materials by weight: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, ZrO2 microspheres 5-15%, tourmaline powder 20-40%, activated carbon powder 5-15%, and erbium oxide 5-15%. The filter layer comprises the following raw materials by weight ratio: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, aluminum nitride 5-15%, tourmaline powder 20-40%, activated carbon powder 5-15%, and thulium oxide 5-15%. The surface layer comprises the following raw materials by weight: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, boron nitride 5-15%, tourmaline powder 20-40%, activated carbon powder 5-15%, and holmium oxide 5-15%.

2. The BQTS far-infrared therapy material according to claim 1, characterized in that: The heating layer has 1μm porous channels inside to increase the number of internal reflections of infrared radiation.

3. The BQTS far-infrared therapy material according to claim 2, characterized in that: A microporous ceramic heat dissipation layer is provided on one side of the waveguide resonant layer. The microporous ceramic heat dissipation layer is a porous alumina ceramic with a pore size of 50-100μm and is coated with a 1mm graphene thermal conductive coating on its surface.

4. The BQTS far-infrared therapy material according to claim 3, characterized in that: The microporous ceramic heat dissipation layer has a convex lens with a diameter of 10–50 μm and a height of 5–20 μm at the opening of the hole, which is used to micro-focus the planar radiation beam onto the skin surface, and the convex lens and the hole are sealed together.

5. The BQTS far-infrared therapy material according to claim 4, characterized in that: An annular silicone layer is provided on one side of the microporous ceramic heat dissipation layer, and the annular silicone layer is used to form a microcavity between the fabric and the skin.

6. The BQTS far-infrared therapy material according to claim 5, characterized in that: The microcavity formed between the annular silicone layer and the skin is filled with an acoustic coupling layer, which is a coupling agent used to eliminate air gaps and reduce interface reflection loss.

7. The BQTS far-infrared therapy material according to claim 6, characterized in that: A flexible thin film is disposed inside the waveguide resonant layer. The flexible thin film is PVDF or flexible PZT film. The flexible thin film is arranged in a grid or ring unit array inside the waveguide resonant layer. A vibration isolation buffer layer is disposed between the waveguide resonant layer and the heating layer to prevent the mechanical vibration of the flexible thin film from being transmitted to the infrared coating below, which would cause micro-cracks in the coating or changes in the emission characteristics. The flexible thin film is microporous silicone or soft PU foam with a micropore diameter of 50–100 μm and a thickness of 200–300 μm.

8. The BQTS far-infrared therapy material according to claim 7, characterized in that: The flexible heating layer is a graphene heating film.

9. A method for preparing BQTS far-infrared therapy material, characterized in that, The BQTS far-infrared therapy material according to claim 8 is prepared by the following steps: Step 1: Use graphene heating film as the basic heating element; Step 2: Mix the following ingredients by weight: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, ZrO2 microspheres 5-15%, tourmaline powder 20-40%, activated carbon powder 5-15%, and erbium oxide 10%. Stir until a uniform slurry is formed. Coat the slurry onto the surface of the flexible heating layer. Before curing, embed a soluble template, which is NaCl microparticles with a particle size of 100nm–1μm. After curing, the template dissolves to form porous channels. After the bottom layer is cured, pyrolyze to remove the soluble template. Alternatively, mix the following ingredients by weight: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, aluminum nitride 10%, tourmaline powder 20-40%, activated carbon powder 5-15%, and thulium oxide 10%. Stir until a uniform slurry is formed. Coat the slurry onto the bottom layer. Before curing, embed a soluble template. After curing, pyrolyze to remove the soluble template. Mix the following ingredients by weight: PDMS 20-40%, BaTiO3 20-40%, SiC 10-30%, boron nitride 10%, tourmaline powder 20-40%, activated carbon powder 5-15%, and holmium oxide 10%. Stir until a uniform slurry is formed. Coat the slurry onto the filter layer. Embed a soluble template before curing. After curing, pyrolyze to remove the soluble template. Step 3: Using a silicon dioxide photonic crystal plate with a thickness of 0.1mm-0.3mm, a pore size of 10-12μm, and a duty cycle of 0.83, cut PVDF or flexible PZT films into a grid / ring array, connect conductive lines to the PVDF or flexible PZT films, embed the PVDF or flexible PZT films inside the photonic crystal plate and make the conductive lines extend outward from inside the photonic crystal plate, lay microporous silicone or soft PU foam between the waveguide layer and the heating layer, and connect the microporous silicone or soft PU foam to the waveguide layer and the heating layer by adhesive bonding. Step 4: Using porous alumina ceramic, a microporous structure with a pore size of 50-100μm is formed by molding and sintering. A convex lens array with a diameter of 10-50μm and a height of 5-20μm is made by hot pressing with a micro-mold or by photocuring with resin. The convex lens array is installed at the opening of the pores of the porous alumina ceramic. The gap between the lens and the pore is sealed with epoxy resin. A 1mm thick graphene coating is applied to the surface and cured at high temperature to enhance thermal conductivity. The porous alumina ceramic is then bonded to the other side of the waveguide resonant layer with PDMS adhesive. Step 5: Adhere an annular silicone layer to the other side of the microporous ceramic heat dissipation layer to form a microcavity structure on the skin contact surface, and fill the microcavity with medical ultrasound coupling agent to form an acoustic coupling layer; Step 6: Perform thermo-press encapsulation on the multi-layer structure to ensure tight bonding between the interfaces of each layer and edge sealing treatment.

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