Far infrared heating antibacterial material and device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZIGONG YIXING TECH CO LTD
- Filing Date
- 2026-03-30
- Publication Date
- 2026-07-14
Smart Images
Figure CN122375601A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of textile technology, specifically to a far-infrared heating antibacterial material and device. Background Technology
[0002] With the rapid cross-industry integration of the health industry and the functional textile market, composite materials with far-infrared therapy, antibacterial, and heating effects have experienced explosive growth in medical patches, protective gear coatings, and smart wearables. Currently, the industry typically prepares functional slurries by adding one or a few inorganic functional powders (such as pure tourmaline powder or far-infrared ceramic powder) to a polymer resin matrix such as polyurethane or silicone. However, in actual production and application, existing technical solutions have revealed many insurmountable bottlenecks: First, there are functional limitations and mutual constraints. Commercially available heating patches or heat-retaining coatings often only focus on "heating" or "heat retention," neglecting the physiological mechanism that the human body easily sweats after being heated locally. Traditional resin coatings have poor breathability and moisture permeability, causing sweat to remain on the skin surface. This not only easily leads to discomfort such as stuffiness and itching, but the damp environment also accelerates bacterial growth and even weakens the normal emissivity of far-infrared rays, failing to achieve true "health therapy."
[0003] Secondly, there are severe engineering and manufacturing challenges. In pursuit of multiple functions, directly mixing various natural mineral powders with different specific gravities and hydrophilicities and filling them in large quantities into organic resins often leads to a fatal "compatibility disaster." Inorganic powders are prone to secondary agglomeration and gravitational sedimentation in the resin slurry, resulting in severe graininess, pinholes, and uneven functional distribution in different areas during coating or printing. Furthermore, large powder particles significantly reduce the flexibility of the coating and the adhesion to the substrate, causing powder detachment and loss of efficacy after washing or stretching. Therefore, developing a composite slurry that achieves synergistic effects, is perfectly compatible with water-based / oil-based resins, and has stable processing performance has become a critical technological barrier that urgently needs to be overcome in this field. Summary of the Invention
[0004] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a far-infrared heating antibacterial material, comprising the following steps: S100, ingredient preparation and mixing: weigh 15-20 parts of montmorillonite, 10-18 parts of zeolite, 10-18 parts of far-infrared ceramic powder, 3-8 parts of germanium powder, 3-8 parts of hematite, 10-18 parts of tourmaline, 10-18 parts of maifanite, and 3-8 parts of silver-loaded zeolite by weight, and mix them evenly to obtain a composite mineral raw material; S200, pulverization: pulverize the composite mineral raw material to obtain composite mineral micro powder; S300, surface modification: add a coupling agent to the composite mineral micro powder for surface modification to obtain modified composite mineral powder; S400, dispersion into slurry: add the modified composite mineral powder to 100-150 parts of resin matrix by weight, and add 1-2 parts of dispersant, and after stirring and dispersion treatment, obtain the far-infrared heating antibacterial composite slurry.
[0005] Further, in step S100, the preferred weight ratio of each component is: 18 parts montmorillonite, 16 parts zeolite, 15 parts far-infrared ceramic powder, 5 parts germanium powder, 5 parts hematite, 15 parts tourmaline, 15 parts maifanite, and 5 parts silver-loaded zeolite. Before weighing each raw material, the process includes a pre-drying step for montmorillonite, zeolite, far-infrared ceramic powder, germanium powder, hematite, tourmaline, maifanite, and silver-loaded zeolite, controlling the moisture content of each raw material to be below 2%.
[0006] Further, in step S100, the operation of uniform mixing specifically involves: putting the weighed raw materials into a high-speed mixer and stirring and mixing at room temperature for 15-30 minutes at a speed of 300-600 r / min to obtain the composite mineral raw material.
[0007] Furthermore, in step S200, the fineness of the composite mineral powder after pulverization is 800-2000 mesh, and its median D50 diameter is 5-15 μm.
[0008] Furthermore, the pulverization process sequentially includes a coarse pulverization stage and an ultrafine pulverization stage; the specific operation is as follows: First, the composite mineral raw material is fed into a mechanical pulverizer for coarse pulverization, passing through a 100-200 mesh sieve to obtain coarse powder; then, the coarse powder is fed into an air jet mill for ultrafine pulverization to obtain the composite mineral micro powder; the operating parameters of the air jet mill are: the pulverizing air pressure is controlled at 0.6-0.8MPa, and the classifying wheel speed is controlled at 2500-4000r / min.
[0009] Further, in step S300, the coupling agent is one or more of a combination of silane coupling agent, titanate coupling agent, or aluminate coupling agent; the amount of the coupling agent added is 0.5%-3.0% of the total mass of the composite mineral micro powder; the coupling agent is preferably any one of silane coupling agent KH-550, silane coupling agent KH-570, titanate coupling agent NDZ-201, or aluminate coupling agent DL-411.
[0010] Further, the surface modification treatment in step S300 is specifically performed as follows: the composite mineral powder is placed in a high-speed dispersion device or a high-speed kneader, and the coupling agent or a diluted solution of the coupling agent is atomized and sprayed in while stirring; then the internal temperature of the device is controlled to rise to 80-120℃, and the temperature is maintained and coated at a speed of 1000-2500r / min for 15-40 minutes. After cooling to room temperature, the material is discharged to obtain the modified composite mineral powder.
[0011] Further, in step S400, the resin matrix is an aqueous resin system or an oil-based resin system; When the resin matrix is an aqueous resin system, the resin matrix is selected from one or more combinations of aqueous polyurethane resin, aqueous acrylic resin, or medical hydrogel matrix; correspondingly, the dispersant is selected from aqueous polycarboxylate dispersants or sodium polyacrylate; when the resin matrix is an oil-based resin system, the resin matrix is selected from one or more combinations of solvent-based polyurethane resin, thermosetting acrylic resin, or liquid silicone rubber; correspondingly, the dispersant is selected from polymeric block copolymer dispersants.
[0012] Further, in step S400, the specific operation of the stirring and dispersing treatment is as follows: the modified composite mineral powder is slowly added in batches to the resin matrix containing the dispersant, and high-speed shear dispersion is performed at a speed of 1500-2500 r / min for 20-40 minutes using a high-speed disperser; after dispersion, degassing treatment is performed at a vacuum degree of -0.08 MPa to -0.1 MPa for 10-20 minutes to obtain the final product.
[0013] A far-infrared heating and antibacterial device includes: a knee brace, on one side of which multiple straps are rotatably mounted, and on one side of each strap are fixedly mounted first Velcro fasteners; on the top of the knee brace are multiple second Velcro fasteners, which are all adhered to the multiple first Velcro fasteners; a temperature display device is provided on the top of the knee brace; a temperature control device is provided on the top of the knee brace; and a heater is provided on the top of the knee brace. The far-infrared heating and antibacterial material is used in the preparation of health care and therapeutic patches, functional protective gear coatings, or heat-generating clothing printing materials. Beneficial effects
[0014] This invention addresses the industry pain point of poor compatibility between inorganic powders and organic resins by introducing a complete closed-loop deep processing technology that combines "cold airflow ultrafine pulverization with dry atomization surface modification" and "high-shear vacuum degassing." Utilizing silane / titanium ester coupling agents for chemical grafting onto mineral surfaces, it fundamentally overcomes the engineering limitations of high-concentration, multi-component inorganic powders in aqueous and oil-based polymer matrices, such as easy agglomeration, sedimentation, and hardened, sandy coatings. The resulting composite slurry has a fine texture, excellent rheological properties, and extremely low functional degradation rate. It can be seamlessly integrated into the large-scale production of medical therapeutic plasters, flexible protective gear printing, and smart heated clothing, demonstrating high industrial practical value and broad commercial transformation prospects. Attached Figure Description
[0015] Figure 1 This is a flowchart of a far-infrared heating antibacterial material according to the present invention; Figure 2 This is a perspective view of a far-infrared heating and antibacterial device according to the present invention; Figure 3 This invention relates to a far-infrared heating and antibacterial device. Figure 1 Enlarged structural diagram at point A in the middle; Figure 4 This is a bottom view of a far-infrared heating and antibacterial device according to the present invention; Figure 5 This is a top view of a far-infrared heating and antibacterial device according to the present invention. Attached Figure Description
[0016] 101. Knee brace; 102. Strap; 103. First Velcro strap; 104. Second Velcro strap; 105. Heater; 106. Display device; 107. Temperature control device. Detailed Implementation
[0017] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.
[0018] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but includes other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0019] The present invention will now be described in further detail with reference to the accompanying drawings: Example
[0020] like Figure 1 As shown, a far-infrared heating antibacterial material includes the following steps: S100. Ingredients and Mixing: Weigh 15-20 parts of montmorillonite, 10-18 parts of zeolite, 10-18 parts of far-infrared ceramic powder, 3-8 parts of germanium powder, 3-8 parts of hematite, 10-18 parts of tourmaline, 10-18 parts of maifanite, and 3-8 parts of silver-loaded zeolite by weight, and mix them evenly to obtain the composite mineral raw material. S200, Crushing process: The composite mineral raw material is crushed to obtain composite mineral micro powder; S300, Surface modification: Add a coupling agent to the composite mineral micro powder for surface modification treatment to obtain modified composite mineral powder; S400, Dispersion into slurry: By weight, the modified composite mineral powder is added to 100-150 parts of resin matrix, and 1-2 parts of dispersant are added. After stirring and dispersing, the far-infrared heating antibacterial composite slurry is obtained.
[0021] Furthermore, the specific implementation process of S100 is as follows; In the process flow of this invention, step S100 aims to construct an inorganic mineral substrate with multiple physiological regulatory functions. The inventors of this invention have discovered that combining specific dehumidifying, heating, activating, and antibacterial minerals in strict weight ratios can produce a significant physical synergistic enhancement effect.
[0022] Specifically, montmorillonite and zeolite in the formulation form the "breathing microcirculation system" of the composite slurry. The amounts of each are strictly limited to 15-20 parts and 10-18 parts, respectively. The ingenuity of this ratio lies in the interweaving of the unique layered silicate structure of montmorillonite and the three-dimensional framework porous structure of zeolite. This allows the pores to absorb moisture and sweat emitted from the human body surface while preventing structural collapse due to excessive moisture absorption. This gives the final product a long-lasting dynamic temperature regulation and dehumidification function, fundamentally solving the stuffy and uncomfortable feeling that is easily caused by traditional heating patches or resin-coated products.
[0023] In constructing the heating and circulation-activating system, this invention abandons the approach of using a single heating material, instead introducing 10-18 parts of far-infrared ceramic powder, 3-8 parts of germanium powder, and 3-8 parts of hematite. The addition of hematite and germanium powder provides an immediate and gentle warmth upon contact with the human body, while the far-infrared ceramic powder absorbs external heat energy and converts it into beneficial far-infrared rays of a specific wavelength. Simultaneously, combined with 10-18 parts of maifan stone and 10-18 parts of tourmaline, the microcurrents and negative ions generated by the tourmaline when heated or pressurized further activate the activity of trace elements in the maifan stone. The energy resonance effect of these multiple components can penetrate deep into subcutaneous tissue, effectively promoting local microcirculation and achieving a true "circulation-activating" therapeutic effect. Furthermore, to ensure the product's hygiene and safety, 3-8 parts of silver-loaded zeolite are also introduced into the system. Silver ions are slowly released thanks to the carrier effect of zeolite, and together with the negative ions generated by tourmaline, they form a dual-effect complementary effect in both spatial antibacterial and contact sterilization, ensuring that the composite material still has excellent broad-spectrum antibacterial and antifungal properties in long-term high humidity and high temperature environments.
[0024] To ensure that the above components can perfectly integrate with the resin matrix in subsequent processes without agglomeration or hydration reactions, this invention optimizes the specific operating conditions for ingredient mixing. Before mixing, the weighed montmorillonite, zeolite, far-infrared ceramic powder, germanium powder, hematite, tourmaline, maifanite, and silver-loaded zeolite need to be pre-dried. The inventors discovered that because montmorillonite and zeolite readily absorb moisture from the air, if moisture is not controlled, directly introducing them into subsequent processes will lead to coupling agent failure or the generation of a large number of bubbles during resin curing. Therefore, the moisture content of each raw material must be strictly controlled to below 2% during pre-drying. Subsequently, the dried raw materials are put into a high-speed mixer and stirred at room temperature for 15-30 minutes at a speed of 300-600 r / min. The purpose of this stage of medium- and low-speed stirring is to use mechanical shear force to break up the soft agglomerates formed in the ore powder during the drying process, so that the eight mineral particles with different specific gravities and particle sizes can achieve a highly uniform cross-linked dispersion at the macroscopic physical level, thereby providing a uniform initial material base for subsequent ultrafine grinding and surface modification steps.
[0025] To further illustrate the technical solution of the present invention, two specific embodiments are provided below: Example 1
[0026] This embodiment provides a preparation process for a far-infrared heating antibacterial composite slurry. In step S100, 18 kg of montmorillonite, 16 kg of zeolite, 15 kg of far-infrared ceramic powder, 5 kg of germanium powder, 5 kg of hematite, 15 kg of tourmaline, 15 kg of maifanite, and 5 kg of silver-loaded zeolite are accurately weighed. The above eight raw materials are separately placed in a drying oven and dried at 105°C until the moisture content drops to 1.5%. Subsequently, all dried raw materials are simultaneously fed into an industrial-grade high-speed mixer, with the equipment speed set at 450 r / min, and continuously stirred and mixed at room temperature for 20 minutes. After mixing, a uniformly distributed, lumpy-free composite mineral raw material is obtained for later use.
[0027] Example 2
[0028] The process flow of this embodiment is basically the same as that of Embodiment 1, with the only difference being the material ratio and mixing parameters in step S100. Specifically, 20 kg of montmorillonite, 10 kg of zeolite, 18 kg of far-infrared ceramic powder, 3 kg of germanium powder, 8 kg of hematite, 10 kg of tourmaline, 18 kg of maifanite, and 3 kg of silver-loaded zeolite are weighed. After pre-drying to ensure a moisture content below 2%, the materials are added to a mixer and stirred at 600 r / min for 15 minutes, collecting the initial composite mineral material. Because this formula increases the proportion of far-infrared ceramic powder and hematite, the final composite slurry, when used to prepare the protective gear printing coating, has a slightly higher heating rate and maximum heating temperature than that of Embodiment 1. Furthermore, the specific implementation process of S200 is as follows; In the process flow of this invention, step S200 is not merely a simple physical refinement, but a crucial "morphology reshaping" process that determines the final slurry's storage stability and the end-product's wearing comfort. During early research and development, the inventors discovered that if the composite mineral powder particle size is too large (e.g., below 500 mesh), on the one hand, the powder's specific surface area is insufficient, leading to a significant decrease in far-infrared emissivity and negative ion release; on the other hand, large particles are prone to gravitational sedimentation in liquid resin, and produce a noticeable grainy and foreign body sensation when preparing skin-friendly coatings or printing. However, if excessively pulverized to the nanoscale, not only does the processing cost skyrocket, but the sudden increase in the powder's surface energy can also lead to severe secondary agglomeration.
[0029] Based on this, the present invention precisely targets the pulverization process within the micron-scale range of 800-2000 mesh (D50 median diameter of 5-15 μm). To achieve this morphological requirement and protect the powder's activity, the present invention preferably employs a stepped process path of "mechanical coarse crushing + airflow ultrafine pulverization." Compared to traditional ball milling, airflow pulverization utilizes high-pressure airflow to cause materials to collide and pulverize. This "self-collision" mechanism brings three irreplaceable beneficial effects: First, the pulverization process does not involve severe frictional heating, belonging to "cold-state pulverization," effectively avoiding the damage of high temperatures to the antibacterial microporous structure of silver-supported zeolite; second, it completely eliminates the mixing of heavy metal impurities such as iron filings caused by wear of mechanical grinding parts, ensuring the purity of health-grade products; third, the airflow classification system can precisely control the output particle size.
[0030] Furthermore, the specific implementation process of S300 is as follows; Step S300 is the core chemical process of this invention that breaks down the "interfacial barrier" between inorganic minerals and organic resins. Because the above eight natural minerals have polar surfaces and a large number of hydrophilic hydroxyl groups, when they are directly mixed into non-polar or weakly polar resin matrices (especially oily resins), they will produce a strong phase repulsion effect, which manifests as "oil-powder separation" and agglomeration.
[0031] To address this common pain point in the industry, this invention introduces 0.5%-3.0% of coupling agents (such as silanes, titanates, or aluminates) for surface modification. In practical operation, this invention abandons the less effective direct immersion method and instead employs a "dry atomization coating process." Under the high-frequency shear force of a high-speed disperser or kneader, the coupling agent or its diluted solution is sprayed into the boiling mineral powder in the form of micron-sized droplets. Crucially, the internal temperature of the equipment is strictly controlled between 80-120℃. Within this specific thermodynamic window, the hydrolyzed groups of the coupling agent molecules can undergo efficient dehydration condensation reactions with the hydroxyl groups on the mineral surface, forming strong chemical covalent bonds (such as "Si-O-Si" bonds); while the lipophilic organic long chains at the other end of the coupling agent molecules extend outward like "tentacles." After 20-40 minutes of heat preservation and coating, the originally hydrophilic "inorganic mineral powder" was successfully disguised as oleophilic "organic polymer particles", and its surface energy was greatly reduced.
[0032] Example 3
[0033] The uniformly mixed composite mineral raw material from Example 1 was first fed into a hammer mill for coarse crushing, passing through a 150-mesh sieve to obtain coarse powder. Subsequently, the coarse powder was quantitatively fed into a fluidized bed jet mill, with the grinding pressure set to 0.7 MPa and the classifying wheel speed set to 3000 r / min for ultrafine grinding, collecting composite mineral micro-powder with a D50 of approximately 8 μm (approximately 1500 mesh). Next, the micro-powder was fed into a high-speed kneader equipped with a heating jacket. With the stirring paddle speed set to 2000 r / min, 2.0% (by weight of total powder) of silane coupling agent KH-550 was uniformly sprayed into the kneader through a pneumatic atomizing nozzle. After spraying, the heating system was activated to raise the material temperature inside the machine to 105°C, and a constant-temperature, high-speed coating treatment was performed for 30 minutes. After treatment, cooling water was introduced to lower the temperature to room temperature before discharge, yielding a modified composite mineral powder with excellent flowability and hydrophobic properties (smooth and pliable to the touch, without any astringency).
[0034] Example 4
[0035] The composite mineral raw material obtained in Example 2 was mechanically coarsely crushed and passed through a 100-mesh sieve before being fed into an air jet mill. The milling pressure was set to 0.6 MPa, and the classifying wheel speed was 2500 r / min. Composite mineral micropowder with a D50 of approximately 15 μm (approximately 800 mesh) was collected. This micropowder was then fed into a high-speed disperser, and at a speed of 1500 r / min, 1.5% by weight of titanate coupling agent NDZ-201 (pre-diluted with a small amount of isopropanol) was atomized and sprayed. The temperature was raised to 85°C and maintained at that temperature for 25 minutes. After cooling, the modified composite mineral powder was obtained. The particle size of this powder was slightly larger than that of Example 1, but thanks to the characteristics of the titanate coupling agent, it exhibited extremely strong compatibility when subsequently compounded with oil-based polyurethane resin.
[0036] Furthermore, the specific implementation process of S400 is as follows; In the process flow of this invention, step S400 is a key process for transforming the previously prepared "highly active, strongly hydrophobic" modified composite mineral powder into a liquid matrix with extremely high commercial application value. To meet the different needs of the medical and health care and smart wearable fields, this invention has specifically developed a dual-track resin composite system combining "water-based" and "oil-based" formulations.
[0037] When the end product is a medical therapy patch, fever-reducing patch, or skin-friendly non-woven fabric coating, this invention preferably uses waterborne polyurethane, waterborne acrylic resin, or medical hydrogel as the resin matrix, supplemented with waterborne polycarboxylate dispersants. The advantage of the waterborne system is that the coating film formed after curing has excellent microporous permeability, can work synergistically with montmorillonite and zeolite in the formula to achieve "humidity and heat balance" on the surface of human skin, and leaves no organic solvent residue, causing zero irritation to sensitive skin.
[0038] When the end products are sports knee braces, heated underwear with dot matrix coatings, or flexible wearable devices, this invention preferably uses solvent-based polyurethane, thermosetting acrylic resin, or liquid silicone rubber as the resin matrix, supplemented with polymeric block copolymer dispersants. The oil-based or silicone-based system imparts extremely strong substrate adhesion and excellent wash resistance to the slurry, ensuring that the far-infrared and antibacterial functions of the garment remain unchanged after multiple washes and stretching.
[0039] Furthermore, this invention introduces a combined process of "high-speed shearing + vacuum degassing" in the physical operation of dispersion into a slurry. The inventors discovered that due to the extremely small particle size (800-2000 mesh) of the modified composite micropowder, a large number of tiny air bubbles are easily entrained into the high-viscosity resin system during high-speed shear dispersion at 1500-2500 r / min. If directly coated, these bubbles will form "sand holes" or "micropore defects" that are difficult to detect with the naked eye after the coating cures, severely damaging the density of the coating and causing uneven heat distribution (local overheating or no heat generation). Therefore, after dispersion, this invention strictly limits the degassing treatment to a vacuum of -0.08 MPa to -0.1 MPa for 10-20 minutes, using negative pressure to forcibly extract the trapped gas from the system, thereby obtaining a composite slurry with excellent rheological properties and a silky texture.
[0040] Water-based system – Coating for medical / health care patches: The modified composite mineral powder (coated with silane coupling agent KH-550) prepared in Example 1 was used. 120 parts (by weight) of medical-grade waterborne polyurethane resin and 1.5 parts of polycarboxylate dispersant were pre-added to a high-speed dispersion vessel. With the stirring speed set to 500 r / min, the modified powder was slowly and evenly sprinkled into the resin in batches. After the addition was complete, the speed was increased to 2000 r / min, and high-speed, high-pressure shear dispersion was performed for 30 minutes to achieve a homogeneous suspension of the powder in the waterborne matrix. Subsequently, the stirring was turned off, and the vacuum pump was turned on to achieve a vacuum of -0.09 MPa in the dispersion vessel. The pressure was maintained for 15 minutes to degas the slurry. After observing that no tiny bubbles overflowed from the surface of the slurry, the vacuum was broken and the slurry was discharged. The resulting composite slurry was a fine paste. This slurry was uniformly coated onto a medical nonwoven fabric substrate using a scraping process, and after being baked at 80℃ to form a film, a far-infrared heating antibacterial physiotherapy patch was obtained. When applied to the joints, this product provides a gentle, penetrating warmth within 10 minutes, and can be worn continuously for 12 hours without causing stuffiness or itching.
[0041] Oil-based / silicone-based system – Water-resistant printing for heat-generating protective gear: The modified composite mineral powder (coated with titanate coupling agent NDZ-201) prepared in Example 2 was used. 150 parts of liquid silicone rubber matrix and 2 parts of polymer block copolymer dispersant were added to a planetary gravity mixer. After gradually adding the modified powder, the mixture was sheared and dispersed at a high speed of 2500 r / min for 40 minutes. After dispersion, forced degassing was performed for 20 minutes under an ultimate vacuum of -0.1 MPa. The resulting silicone-based composite slurry exhibited excellent leveling properties. This slurry was screen-printed onto the inner side of a spandex / nylon knitted knee brace using a dot matrix or honeycomb pattern. After high-temperature vulcanization and cross-linking at 120℃, a far-infrared heating and antibacterial knee brace was obtained. According to authoritative testing, after 50 standard machine washes, the far-infrared normal emissivity of the coating on the knee brace remained above 85%, and the antibacterial rate against Escherichia coli and Staphylococcus aureus was greater than 99%, achieving long-lasting and durable performance.
[0042] Example 5
[0043] like Figures 2-5 As shown, a far-infrared heating and antibacterial device includes: a knee brace 101, with multiple straps 102 rotatably mounted on one side of the knee brace 101, and first Velcro 103 fixedly mounted on one side of each strap 102; multiple second Velcro 104 fixedly mounted on the top of the knee brace 101, with each second Velcro 104 being adhered to the first Velcro 103; a temperature display device 106 for displaying temperature is provided on the top of the knee brace 101; a temperature control device 107 for controlling temperature is provided on the top of the knee brace 101; and a heater 105 for heating is provided on the top of the knee brace 101. The far-infrared heating and antibacterial material obtained can be used in the preparation of health care and physiotherapy patches, functional protective gear coatings, or heating clothing printing materials.
[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A far-infrared heating antibacterial material, characterized in that, Includes the following steps: S100. Ingredients and Mixing: Weigh 15-20 parts of montmorillonite, 10-18 parts of zeolite, 10-18 parts of far-infrared ceramic powder, 3-8 parts of germanium powder, 3-8 parts of hematite, 10-18 parts of tourmaline, 10-18 parts of maifanite, and 3-8 parts of silver-loaded zeolite by weight, and mix them evenly to obtain the composite mineral raw material. S200, Crushing process: The composite mineral raw material is crushed to obtain composite mineral micro powder; S300, Surface modification: Add a coupling agent to the composite mineral micro powder for surface modification treatment to obtain modified composite mineral powder; S400, Dispersion into slurry: By weight, the modified composite mineral powder is added to 100-150 parts of resin matrix, and 1-2 parts of dispersant are added. After stirring and dispersing, the far-infrared heating antibacterial composite slurry is obtained.
2. The far-infrared heating antibacterial material according to claim 1, characterized in that, In step S100, the preferred weight ratio of each component is: 18 parts montmorillonite, 16 parts zeolite, 15 parts far-infrared ceramic powder, 5 parts germanium powder, 5 parts hematite, 15 parts tourmaline, 15 parts maifanite, and 5 parts silver-loaded zeolite. Before weighing each raw material, the process includes a pre-drying step for montmorillonite, zeolite, far-infrared ceramic powder, germanium powder, hematite, tourmaline, maifanite, and silver-loaded zeolite, controlling the moisture content of each raw material to be below 2%.
3. The far-infrared heating antibacterial material according to claim 2, characterized in that, In step S100, the operation of uniform mixing is specifically as follows: the weighed raw materials are put into a high-speed mixer and stirred at room temperature for 15-30 minutes at a speed of 300-600 r / min to obtain the composite mineral raw material.
4. The far-infrared heating antibacterial material according to claim 3, characterized in that, In step S200, the fineness of the composite mineral powder after pulverization is 800-2000 mesh, and its D50 median diameter is 5-15 μm.
5. The far-infrared heating antibacterial material according to claim 4, characterized in that, The pulverization process includes a coarse pulverization stage and an ultrafine pulverization stage; the specific operation is as follows: First, the composite mineral raw material is fed into a mechanical pulverizer for coarse pulverization, and then passed through a 100-200 mesh sieve to obtain coarse powder; The coarse powder is then fed into an air jet mill for ultrafine grinding to obtain the composite mineral powder. The operating parameters of the airflow pulverizer are as follows: the pulverizing air pressure is controlled at 0.6-0.8MPa, and the speed of the classifying wheel is controlled at 2500-4000r / min.
6. The far-infrared heating antibacterial material according to claim 5, characterized in that, In step S300, the coupling agent is one or more of a silane coupling agent, a titanate coupling agent, or an aluminate coupling agent; the amount of the coupling agent added is 0.5%-3.0% of the total mass of the composite mineral powder. The coupling agent is preferably any one of silane coupling agent KH-550, silane coupling agent KH-570, titanate coupling agent NDZ-201, or aluminate coupling agent DL-411.
7. The far-infrared heating antibacterial material according to claim 6, characterized in that, The surface modification treatment in step S300 specifically involves the following steps: The composite mineral powder is placed in a high-speed dispersion device or a high-speed kneader, and the coupling agent or a diluted solution of the coupling agent is atomized and sprayed into it under stirring. The internal temperature of the equipment is then raised to 80-120℃, and the equipment is kept warm and coated for 15-40 minutes at a speed of 1000-2500r / min. After cooling to room temperature, the material is discharged to obtain the modified composite mineral powder.
8. The far-infrared heating antibacterial material according to claim 7, characterized in that, In step S400, the resin matrix is an aqueous resin system or an oil-based resin system. When the resin matrix is an aqueous resin system, the resin matrix is selected from one or more combinations of aqueous polyurethane resin, aqueous acrylic resin, or medical hydrogel matrix; correspondingly, the dispersant is selected from aqueous polycarboxylate dispersants or sodium polyacrylate. When the resin matrix is an oil-based resin system, the resin matrix is selected from one or more combinations of solvent-based polyurethane resin, thermosetting acrylic resin, or liquid silicone rubber; correspondingly, the dispersant is selected from polymeric block copolymer dispersants.
9. The far-infrared heating antibacterial material according to claim 8, characterized in that, In step S400, the specific operation of the stirring and dispersing treatment is as follows: the modified composite mineral powder is slowly added to the resin matrix containing the dispersant in batches, and high-speed shearing and dispersing is performed for 20-40 minutes at a speed of 1500-2500 r / min using a high-speed disperser. After dispersion, degassing is performed at a vacuum of -0.08 MPa to -0.1 MPa for 10-20 minutes to obtain the final product.
10. A far-infrared heating antibacterial device, comprising a far-infrared heating antibacterial material according to any one of claims 1-9, characterized in that, include: The knee brace (101) has multiple straps (102) rotatably mounted on one side, and a first Velcro (103) is fixedly mounted on one side of each strap (102). Multiple second Velcro (104) are fixedly mounted on the top of the knee brace (101), and each of the second Velcro (104) is adhered to the first Velcro (103). The top of the knee brace (101) is provided with a temperature display device (106), a temperature control device (107) for controlling the temperature, and a heater (105) for heating. The far-infrared heating antibacterial material is used in the preparation of health care therapy patches, functional protective gear coatings, or heating clothing printing materials.