Far infrared material and manufacturing method thereof

Abstract

The invention discloses a far infrared material and a manufacturing method thereof. The manufacturing method of the far infrared material comprises the following steps: grinding titanium dioxide and ferric oxide into first slurry; grinding kaolin, talc and aluminum oxide into second slurry; mixing the first slurry and the second slurry to form a third slurry; drying and sieving the third slurry to obtain powder; and molding the powder, and sintering the molded powder at a temperature of 1250-1400 DEG C to obtain the far infrared material. Therefore, the far infrared ray emissivity of the manufactured far infrared ray material in the wavelength range which can be absorbed by a human body can reach 0.949309, and no radiation element exists.

Description

Technical Field

[0001] The present invention relates to a far-infrared material and a manufacturing method thereof, in particular to a far-infrared material with a far-infrared emissivity of up to 0.949309 and a manufacturing method thereof. Background Art

[0002] Far infrared light, commonly known today, refers to light waves between 15 and 1000 microns on the spectrum. This wavelength range falls within the infrared spectrum and is invisible. Living organisms can sense its presence as heat. Far infrared light between 4 and 14 microns resonates with human molecules, promoting capillary dilation, improving blood circulation, boosting metabolism, and ultimately increasing immunity. This range is why it's also known as the "light of fertility." Beyond its technological and astronomical applications, far infrared light also has medical and health applications.

[0003] Taiwan Patent Application Publication No. I774096 discloses a far-infrared element having a metal substrate, comprising: a sheet-shaped metal body having a plurality of through-holes; a far-infrared coating applied to the surface of the metal body, and the through-holes are also covered by the far-infrared coating, thereby maintaining air permeability. The far-infrared coating comprises a powder, which is one or any combination of the following: tourmaline, clay, mullite, and cordierite.

[0004] The aforementioned patent case uses a metal body as a substrate and then applies a far-infrared coating. The use of the entire far-infrared element with a metal substrate will be relatively limited.

[0005] Another patent application published in Taiwan, China, No. TW202348585A, provides a far-infrared emitting material and a preparation method thereof. The far-infrared emitting material includes zirconium oxide and at least one natural silicate mineral soil. The preparation method of the far-infrared emitting material is to use at least two or more of the above materials as raw materials, mix them in a certain proportion, sinter them, and crush them into granules. The characteristic is that they are sintered in the temperature range of 1100°C-1250°C; then use a large ball mold machine to make mud and mix them evenly, add additives as needed to disperse them, and finally sieve the mud, dry it, and sieve the dry powder to make a far-infrared emitting material with a wider wavelength in the range of 8-20μm and high emissivity.

[0006] The purpose of the present invention is to provide a far infrared material and a manufacturing method thereof that uses different components from the above two patent applications. Summary of the Invention

[0007] The inventors propose a far infrared material comprising the following components: kaolin, 40 to 52 parts by weight; talc, 35 to 45 parts by weight; aluminum oxide, 8 to 18 parts by weight; titanium dioxide, 0.1 to 5 parts by weight; and ferric oxide, 0.1 to 5 parts by weight.

[0008] Furthermore, it further comprises water and / or a dispersant, wherein the weight proportion of the water is between 40 and 60 parts, and the weight proportion of the dispersant is between 0.1 and 2 parts.

[0009] The inventors have also proposed a method for producing a far-infrared material, comprising: grinding 0.1 to 5 parts by weight of titanium dioxide and 0.1 to 5 parts by weight of ferric oxide in a bead mill to a particle size of 0.1 to 0.5 microns to form a first slurry; grinding 40 to 52 parts by weight of kaolin, 35 to 45 parts by weight of talc, and 8 to 18 parts by weight of aluminum oxide in a ball mill to a particle size of 0.8 to 1.2 microns to form a second slurry; mixing the first and second slurries to form a third slurry; drying and sieving the third slurry to form a powder; and shaping the powder and sintering it at a sintering temperature between 1250 degrees Celsius and 1400 degrees Celsius to form the far-infrared material.

[0010] Furthermore, when the first slurry and the second slurry are mixed to form the third slurry, the first slurry and the second slurry are placed in the ball mill for grinding and mixing, or the first slurry and the second slurry are stirred and mixed.

[0011] Furthermore, when the first slurry and the second slurry are placed in the ball mill for grinding and mixing, the grinding time is between 1 hour and 3 hours.

[0012] Furthermore, when the titanium dioxide and the ferric oxide are ground into the first slurry, and / or when the kaolin, the talc and the aluminum oxide are ground into the second slurry, 40 to 60 parts by weight of water and / or 0.1 to 2 parts by weight of a dispersant are added and ground together.

[0013] Furthermore, when the kaolin, the talc and the alumina are ground into the second slurry, the grinding time is between 6 hours and 10 hours.

[0014] Furthermore, when sintering is performed at the sintering temperature, the sintering temperature is 1350 degrees Celsius.

[0015] The above technical features can preferably achieve the following effects:

[0016] 1. The far-infrared material produced by the present invention using a specific ratio of kaolin, talc, aluminum oxide, titanium dioxide, and ferric oxide has an emissivity of up to 0.949309 within the wavelength range that can be absorbed by the human body, and does not contain any radioactive elements.

[0017] 2. In powder form, it can be molded into different types of far-infrared materials according to the desired substrate or implementation method, and has a wider range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flow chart of an embodiment of the present invention.

[0019] Figure 2 FIG. 4 is a graph showing the relationship between the emissivity and wavelength of the first to fourth embodiments of the present invention and a comparative example.

[0020] Figure 3 This is a SEM photograph of the first embodiment of the present invention.

[0021] Figure 4 This is a SEM photograph of the second embodiment of the present invention.

[0022] Figure 5 This is a SEM photograph of the third embodiment of the present invention.

[0023] Figure 6 This is a SEM photograph of the fourth embodiment of the present invention.

[0024] Figure 7 This is a SEM photograph of a comparative example.

[0025] Figure 8 1 is the X-ray diffraction pattern of the first embodiment of the present invention.

[0026] Figure 9 1 is an X-ray diffraction pattern of the second embodiment of the present invention.

[0027] Figure 10 1 is an X-ray diffraction pattern of the third embodiment of the present invention.

[0028] Figure 11 1 is an X-ray diffraction pattern of the fourth embodiment of the present invention.

[0029] Figure 12 This is another X-ray diffraction pattern of the third embodiment of the present invention.

[0030] Figure 13 This is an X-ray diffraction pattern of a comparative example.

[0031] Explanation of symbols:

[0032] S1: Step 1

[0033] S2: Step 2

[0034] S3: Step 3

[0035] S4: Step 4

[0036] S5: Step 5

[0037] S6: Step 6 DETAILED DESCRIPTION

[0038] In view of the above technical features, the main effects of the far-infrared material and the manufacturing method thereof of the present invention can be clearly demonstrated in the following embodiments.

[0039] See also Figure 1 , discloses a method for producing the far-infrared material according to an embodiment of the present invention, which can produce the far-infrared material according to the present invention.

[0040] The far infrared material comprises the following ingredients: kaolin, talc, aluminum oxide (Al2O3), titanium dioxide (TiO2), ferric oxide (Fe2O3), water and a dispersant.

[0041] The weight ratio of the kaolin is between 40 and 52 parts, the weight ratio of the talc is between 35 and 45 parts, the weight ratio of the aluminum oxide is between 8 and 18 parts, the weight ratio of the titanium dioxide is between 0.1 and 5 parts, the weight ratio of the ferric oxide is between 0.1 and 5 parts, the weight ratio of the water is between 40 and 60 parts, and the weight ratio of the dispersant is between 0.1 and 2 parts.

[0042] The method for manufacturing the far-infrared material comprises the following steps:

[0043] Step 1 S1: 0.1 to 5 parts by weight of titanium dioxide and 0.1 to 5 parts by weight of ferric oxide are placed in a bead mill and ground to a particle size of 0.1 to 0.5 μm to form a first slurry.

[0044] Step 2 S2: Place 40 to 52 parts by weight of the kaolin, 35 to 45 parts by weight of the talc, and 8 to 18 parts by weight of the alumina in a ball mill and grind them to a particle size of 0.8 to 1.2 μm to form a second slurry.

[0045] In step 2 S2, the grinding time is between 6 hours and 10 hours, preferably 8 hours.

[0046] During the grinding process of step 1 S1 and step 2 S2, in order to better disperse and evenly mix the materials, 40 to 60 parts by weight of water and / or 0.1 to 2 parts by weight of the dispersant may be added for grinding.

[0047] Step three S3: mixing the first slurry and the second slurry to form a third slurry.

[0048] In step three S3 , the first slurry can be directly poured into the ball mill to be ground and mixed with the second slurry already in the ball mill. Alternatively, the first slurry and the second slurry can be stirred and mixed in a mixing drum, for example.

[0049] When the ball mill is used for grinding and mixing, the grinding time is between 1 hour and 3 hours, preferably 2 hours.

[0050] Step 4 S4: drying and sieving the third slurry to form powder.

[0051] Step 5 S5: shaping the powder and sintering it at a sintering temperature to form a far infrared material.

[0052] In step five S5, the sintering temperature is between 1250 degrees Celsius and 1400 degrees Celsius, preferably 1350 degrees Celsius.

[0053] Since the powder is obtained in step 4 S4 , the far infrared material can be formed into different forms according to the desired base material or implementation method in step 5 S5 , thus having a wider range of uses.

[0054] Step six S6: applying the far infrared material to a product or product.

[0055] Specifically, in step five S5, the powder can be formed by mixing, impregnation, coating, pasting, etc., and then the powder can be sintered independently or together with the desired substrate to form a pressed cake, sheet, coating, glaze, ceramic, glass, fiber, plastic, metal, etc.

[0056] The various products listed above can be directly regarded as the products to which the far-infrared material is applied in step 6 S6. Alternatively, the various products listed above can be further processed in step 6 S6 to become another product or a product that can ultimately be sold or used. The manufacturing method of the far-infrared material can effectively improve the final far-infrared emissivity of each product or product.

[0057] See also Figure 1 and Figure 2 , changing the sintering temperature as different embodiments of the present invention, to experiment the change of far-infrared emissivity at different sintering temperatures: the sintering temperature of the first embodiment is 1250 degrees Celsius, the sintering temperature of the second embodiment is 1300 degrees Celsius, the sintering temperature of the third embodiment is 1350 degrees Celsius, and the sintering temperature of the fourth embodiment is 1400 degrees Celsius.

[0058] In addition, a comparative example is set up. The sintering temperature of the comparative example is 1350 degrees Celsius, and titanium dioxide and ferric oxide are not added, which is equivalent to omitting step 1 S1 and step 3 S3, and directly performing the drying and screening process of step 4 S4 with the second slurry of step 2 S2.

[0059] In the legend, the first embodiment is labeled as TF-1250°C, the second embodiment is labeled as TF-1300°C, the third embodiment is labeled as TF-1350°C, the fourth embodiment is labeled as TF-1400°C, and the comparative example is labeled as NTF-1350°C.

[0060] Table 1

[0061] Comparative Example First embodiment Second embodiment Third embodiment Fourth embodiment average value 0.844745 0.913723 0.914388 0.949309 0.916226

[0062] Table 1 shows the far infrared emissivity of the first to fourth embodiments and the comparative example. Figure 2 Take the average value when the wavelength is between 6 microns and 14 microns, Figure 2 The experimental temperature is 30 degrees Celsius as in Table 1 above, and the experimental instrument used is a Bruker VERTEX 70 spectrometer.

[0063] from Figure 2 As can be seen from Table 1 above, the third embodiment has a higher far-infrared emissivity, reaching 0.949309, and is a preferred embodiment of the present invention.

[0064] See also Figures 3 to 7 , and please refer to Table 1 above. Combining the scanning electron microscope (SEM) photos with the data in Table 1 above, we can see that:

[0065] The sintering temperature of the first embodiment is 1250 degrees Celsius, the grains are granular, and the far infrared emissivity is 0.913723. Figure 3 shown.

[0066] The sintering temperature of the second embodiment is increased to 1300 degrees Celsius, and a small amount of columnar crystals appear in the grains, and the far infrared emissivity is 0.914388. Figure 4 shown.

[0067] The sintering temperature of the third embodiment is increased to 1350 degrees Celsius, and the grains have obvious columnar crystals, and the far infrared emissivity is 0.949309. Figure 5 shown.

[0068] The sintering temperature of the fourth embodiment is increased to 1400 degrees Celsius. The grains grow during sintering, but the columnar crystals are not as obvious as those of the third embodiment. The far infrared emissivity is 0.916226. Figure 6 shown.

[0069] The sintering temperature of the comparative example is 1350 degrees Celsius, the grains are granular, and the far infrared emissivity is only 0.844745, which is significantly lower than 0.949309 of the third embodiment. Figure 7 shown.

[0070] See also Figures 8 to 11 Comparing the X-ray diffraction patterns of different embodiments, it can be found that they all contain mineral phases such as cordierite, spinel, mullite, and cristobalite.

[0071] It can be seen from the changes from the first embodiment to the fourth embodiment that as the sintering temperature increases, the contents of mineral phases such as spinel, mullite, and cristobalite gradually decrease, and ultimately the fourth embodiment is mainly composed of cordierite mineral phase.

[0072] See also Figure 12 and Figure 13 By comparing another X-ray diffraction pattern of the third embodiment with the X-ray diffraction pattern of the comparative example, it can be found that there are some differences in the (110) and (002) planes, which may be the effect of the columnar grains.

[0073] Please refer to Figure 1 and Figure 2 The present invention uses kaolin, talc, alumina, titanium dioxide, and ferric oxide in specific proportions and a specific sintering temperature to produce a far-infrared material with a far-infrared emissivity of up to 0.949309 within the wavelength range that can be absorbed by the human body, and no radioactive elements are present.

[0074] The experimental temperature used in the experiment of far infrared emissivity is 30 degrees Celsius, which is a temperature suitable for human use. This can further prove that the far infrared material can indeed have the same effect when actually used on the human body. Figure 2 And the high far infrared emissivity disclosed in Table 1 above.

[0075] The manufacturing method of this far-infrared material is indeed a high-quality, safe and low-cost manufacturing method. Products made with this far-infrared material can replace many far-infrared products on the market that contain ionizing radiation and affect human health, and contribute to the development of the ceramic industry.

[0076] Based on the description of the above embodiments, the operation, use and effects of the present invention can be fully understood. However, the above embodiments are only preferred embodiments of the present invention and should not be used to limit the scope of implementation of the present invention. In other words, simple equivalent changes and modifications made according to the scope of the patent application and the content of the invention description are all within the scope of the present invention.

Claims

1. A far infrared material, characterized in that: Contains the following ingredients: Kaolin, between 40 and 52 parts by weight; Talc, between 35 and 45 parts by weight; Alumina, between 8 and 18 parts by weight; Titanium dioxide, between 0.1 and 5 parts by weight; and The weight percentage of ferric oxide is between 0.1 and 5 parts.

2. The far-infrared material according to claim 1, wherein It also contains water and / or a dispersant, wherein the weight portion of the water is between 40 and 60, and the weight portion of the dispersant is between 0.1 and 2.

3. A method for producing a far-infrared material, characterized in that: Include: 0.1 to 5 parts by weight of titanium dioxide and 0.1 to 5 parts by weight of ferric oxide are placed in a bead mill and ground to a particle size of 0.1 to 0.5 μm to form a first slurry; 40 to 52 parts by weight of kaolin, 35 to 45 parts by weight of talc, and 8 to 18 parts by weight of alumina are placed in a ball mill and ground to a particle size of 0.8 to 1.2 μm to form a second slurry; mixing the first slurry and the second slurry to form a third slurry; drying and sieving the third slurry to form a powder; as well as The powder is formed and sintered at a sintering temperature to form a far-infrared material. The sintering temperature is between 1250 degrees Celsius and 1400 degrees Celsius.

4. The method for producing a far-infrared material according to claim 3, wherein: When the first slurry and the second slurry are mixed to form the third slurry, the first slurry and the second slurry are placed in the ball mill for grinding and mixing, or the first slurry and the second slurry are stirred and mixed.

5. The method for producing a far-infrared material according to claim 4, wherein: When the first slurry and the second slurry are placed in the ball mill for grinding and mixing, the grinding time is between 1 hour and 3 hours.

6. The method for producing a far-infrared material according to claim 3, wherein: When the titanium dioxide and the ferric oxide are ground into the first slurry, and / or when the kaolin, the talc and the aluminum oxide are ground into the second slurry, 40 to 60 parts by weight of water and / or 0.1 to 2 parts by weight of a dispersant are added and ground together.

7. The method for producing a far-infrared material according to claim 3, wherein: When the kaolin, the talc and the alumina are ground into the second slurry, the grinding time is between 6 hours and 10 hours.

8. The method for producing a far-infrared material according to claim 3, wherein: When sintering is performed at this sintering temperature, the sintering temperature is 1350 degrees Celsius.

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