CN117210196A - Material capable of stably emitting far infrared rays and negative ions and application thereof - Google Patents
Material capable of stably emitting far infrared rays and negative ions and application thereof Download PDFInfo
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Abstract
The invention relates to the technical field of functional materials, in particular to a material capable of stably emitting far infrared rays and anions and application thereof. The raw materials for preparing the material comprise the following components in parts by weight: 10-50 parts of aluminum oxide, 5-20 parts of silicon dioxide, 10-80 parts of transition metal oxide, 5-30 parts of kieselguhr, 5-20 parts of borax and 10-30 parts of medical stone. The material emits anions and far infrared rays and has excellent sterilizing and mite removing effects, and the application field is wide.
Description
Technical Field
The invention relates to the technical field of functional materials, in particular to a material capable of stably emitting far infrared rays and anions and application thereof.
Background
In general, air molecules contain equal amounts of positive and negative electric components and are in a neutral state. However, when the air molecules are subjected to certain factors and lose electrons, they become air positive ions, and those free electrons are adsorbed onto other molecules in the air. Since oxygen molecules have affinity more than molecules such as nitrogen and carbon dioxide, the oxygen molecules preferentially capture electrons to form negative ions, and thus air negative ions are also called oxygen negative ions (i.e., negative oxygen ions). Research shows that the anions mainly have the following effects: (1) Enhancing cerebral cortex function, improving working benefit and sleep quality; can also enhance the oxidation process of brain tissue to obtain more oxygen; (2) The effect of dilating blood vessels is obvious, arterial vasospasm can be relieved, and blood pressure can be reduced; can also improve heart and lung function; (3) The oxygen content in the blood is increased, which is beneficial to the transportation, absorption and utilization of blood oxygen; (4) the function of removing harmful gases and peculiar smell; (5) As a strong electric field exists around the negative ion material, bacteria are killed or inhibited from splitting and proliferating under the action of the electric field and the action of micro-current formed by the electric field in the electric field. Therefore, the negative ions have strong antibacterial and bacteriostatic effects, including escherichia coli, staphylococcus aureus, mould and the like.
The human body emits far infrared rays at all times, the wavelength of the far infrared rays emitted by the human body is about 9.6 microns, and the far infrared rays with the wavelength of 5.6-15 microns overlap with the wavelength of 9.4 microns emitted by the human body. Any good radiator, necessarily a good absorber, according to kirchhoff's law. Therefore, the human body is a good far infrared absorber, and the absorption wavelength is mainly 8-14 microns. Because the frequency of far infrared ray is the same as the vibration ratio of the molecules and atoms of living cells of human body, the vibration of the molecules inside and outside the cells is increased after the far infrared ray is absorbed by the human body to generate a heat effect and a non-heat effect, so that the biochemical change of the human body can be accelerated. Has effects in promoting cell activation, promoting telangiectasis, accelerating blood flow, improving blood circulation, enhancing blood and cell tissue metabolism, restoring cell activity, improving anemia, and regulating blood pressure; pain is relieved, blood stasis is removed, and muscle relaxation is increased; regulating autonomic nerves to make people full of energy and eliminate fatigue; accelerating metabolism, removing sweat and reducing weight; improving immunity.
At present, people also research the anion infrared emission material, but the problems of unscientific types of functional components or content proportions, weak far infrared energy and anion energy and the like generally exist.
Disclosure of Invention
The present invention aims to solve the technical problems in the prior art described above. Therefore, the invention provides a material capable of stably emitting far infrared rays and negative ions and application thereof. The material emits anions and far infrared rays and has excellent sterilizing and mite removing effects, and the application field is wide.
In a first aspect of the present invention, there is provided a material capable of stably emitting far infrared rays and negative ions, the preparation raw materials comprising the following components in parts by weight:
10-50 parts of aluminum oxide, 5-20 parts of silicon dioxide, 10-80 parts of transition metal oxide, 5-30 parts of kieselguhr, 5-20 parts of borax and 10-30 parts of medical stone.
(1) The material contains silicate substances with an aluminum-boron-silicon network structure characterized by oxygen, and the silicate substances vibrate at the balance position due to the thermoelectric property and the piezoelectricity of the silicate substances, so that dipole moment changes to generate electromagnetic radiation in a far infrared band, the electromagnetic radiation generates radiation through resonance of free ions, impurity ions, ionic substances and the like of the silicate substances, and the silicate substances drive ionic bond polarity vibration of organic and inorganic molecular cross links to form a strong radiation broadband, so that the silicate substances have the characteristic of emitting strong anions and infrared rays under tiny temperature and pressure changes.
(2) The medical stone can permanently release anions, emit infrared rays, is nontoxic and pollution-free, and does not generate substances harmful to human beings and the environment along with the anions. The material can not lose efficacy in the high-temperature sintering process, and has super-strong stability. In the invention, the medical stone and the aluminum oxide can synergistically improve the dispersion stability and the radiation performance of the material.
(3) On one hand, the silicon dioxide has low polarity and good dispersibility, plays a role in increasing the volume in the material, forming holes, promoting ion conversion space and forming a new electric field; on the other hand, the silicon dioxide also has certain dispersing and separating functions on the aluminum oxide nano powder, and can prevent the agglomeration of the nano aluminum oxide.
In some embodiments of the invention, the diatomaceous earth is ammonium bicarbonate modified diatomaceous earth.
In some embodiments of the invention, the method of modification is:
diatomite and ammonium bicarbonate are mixed according to the mass ratio of 50-400: 1, and calcining at 500-800 ℃ for 20-120 s.
Diatomite is rich in various beneficial minerals, light and soft in texture, and has numerous tiny holes on the particle surface, porosity up to 90% or more and specific surface area up to 65m 2 And/g. The prominent "molecular sieve" structure determines its extremely strong physical adsorption and ion exchange properties.
The porous structure of the diatomite is opened after the diatomite is treated by ammonium bicarbonate, and impurities contained in the diatomite can be removed by further calcination, and meanwhile, the proportion of the macropores of the diatomite is increased. Therefore, the transition metal oxide can be better dispersed in the diatomite, the porous structure of the diatomite is not blocked, the powder material is not influenced to release negative ions and far infrared rays, and the granularity of the particles is not greatly changed.
In some embodiments of the invention, the aluminum oxide is present in an amount of 10 to 50 parts by weight, including but not limited to: 10 to 40 parts, 20 to 50 parts, 20 to 40 parts, 30 to 50 parts and 30 to 40 parts.
In some embodiments of the invention, the silica is present in an amount of 5 to 20 parts by weight, including but not limited to: 5-15 parts, 5-10 parts.
In some embodiments of the invention, the transition metal oxide is present in an amount of 10 to 80 parts by weight, including but not limited to: 10 to 70 parts, 10 to 60 parts, 10 to 50 parts, 10 to 40 parts, 10 to 30 parts, 10 to 20 parts, 15 to 80 parts, 15 to 70 parts, 15 to 60 parts, 15 to 50 parts, 15 to 40 parts, 15 to 30 parts, 15 to 20 parts.
In some embodiments of the invention, the diatomaceous earth is 5 to 30 parts by weight, including but not limited to: 5 to 25 parts, 5 to 20 parts, 10 to 30 parts, 10 to 25 parts and 10 to 20 parts.
In some embodiments of the invention, the borax is 5-20 parts by weight, including but not limited to: 5 to 15 parts, 10 to 20 parts and 10 to 15 parts.
In some embodiments of the present invention, the medical stone is 10-30 parts by weight, including but not limited to: 10 to 25 parts, 10 to 20 parts, 15 to 30 parts, 15 to 25 parts and 15 to 20 parts.
It should be noted that the parts by weight of any of the above components may be any number within the range thereof, and the composition of the materials may be any combination of the any number, for example, the preparation raw materials may be the following combinations:
20-50 parts of aluminum oxide, 5-20 parts of silicon dioxide, 10-30 parts of transition metal oxide, 5-30 parts of kieselguhr, 5-20 parts of borax and 10-30 parts of medical stone.
In some preferred embodiments of the invention, the material comprises the following components in parts by weight:
20-50 parts of aluminum oxide, 5-15 parts of silicon dioxide, 10-25 parts of transition metal oxide, 5-25 parts of kieselguhr, 5-20 parts of borax and 10-25 parts of medical stone.
In some more preferred embodiments of the present invention, the materials are prepared from the following components in parts by weight:
30-40 parts of aluminum oxide, 5-10 parts of silicon dioxide, 15-20 parts of transition metal oxide, 10-20 parts of kieselguhr, 10-15 parts of borax and 15-20 parts of medical stone.
In some embodiments of the invention, the particle size of the aluminum oxide is 10 to 200nm.
The proper particle size is more beneficial to improving the negative ion and far infrared emission capability of the aluminum oxide powder. Research shows that in a certain range, the smaller the particle size, the larger the surface area and the more atoms are distributed on the surface, the surface activity of particles is obviously increased, and the increase of the surface activity is favorable for the micro particles to absorb external energy, so that the small particle size is favorable for the improvement of radiation intensity. However, if the particle size is too small, the powder tends to be flocculated and not easy to disperse, which increases the difficulty of operation, and the finer the powder, the higher the processing requirements and costs.
In some preferred embodiments of the present invention, the alumina has a particle size of 10 to 50nm in a ratio of 20 to 50% and a particle size of 100 to 200nm in a ratio of 50 to 80%.
In some more preferred embodiments of the present invention, the alumina has a particle size of 10 to 50nm in a ratio of 30 to 40% and a particle size of 100 to 200nm in a ratio of 60 to 70%.
The size distribution of the aluminum oxide has a certain influence on the far infrared emission performance, a certain proportion of aluminum oxide with larger particle size (100-200 nm) is matched with aluminum oxide with smaller particle size (10-50 nm), the uniform dispersion of the aluminum oxide in the whole material is facilitated, the far infrared emissivity is improved, and the performance is more stable.
In some embodiments of the invention, the transition metal oxide comprises at least one of titanium dioxide, zinc oxide, manganese dioxide, copper oxide, nickel oxide, cobalt oxide, yttrium oxide, zirconium dioxide.
In some embodiments of the invention, the transition metal oxide comprises the following components in mass percent:
40-80% of titanium dioxide, 0-40% of zinc oxide, 0-30% of manganese dioxide and 0-30% of copper oxide.
In some preferred embodiments of the present invention, the transition metal oxide comprises the following components in mass percent:
50-70% of titanium dioxide, 0-40% of zinc oxide, 0-25% of manganese dioxide and 0-25% of copper oxide.
In some more preferred embodiments of the present invention, the transition metal oxide comprises 60 to 70% titanium dioxide, 30 to 40% zinc oxide; or, the transition metal oxide comprises 40-60% of titanium dioxide, 20-30% of manganese dioxide and 20-30% of copper oxide.
In some embodiments of the invention, the method of modification is:
diatomite and ammonium bicarbonate are mixed according to the mass ratio of 50-200: 1, and calcining at 600-700 ℃ for 20-120 s.
In a second aspect of the present invention, there is provided a method of preparing the above material, comprising the steps of:
mixing the components according to a certain proportion, ball milling, calcining, and superfine grinding.
In some embodiments of the invention, the ball milling medium is water; further, the total mass to water solid-to-liquid ratio of each component was 1g: 1.5-3 mL.
In some embodiments of the invention, the ball milling is performed for a period of time ranging from 12 to 48 hours.
In some embodiments of the invention, the ball milling is followed by a drying process to remove the ball milling media and then a calcination step.
In some embodiments of the invention, the temperature of the calcination is 500 to 800 ℃.
In some embodiments of the invention, the calcination time is 1 to 2 hours.
The calcination can obviously improve the low temperature and far infrared emission performance of the transition metal oxide, so that the material has higher far infrared emission effect.
The superfine crushing treatment is favorable for fully and uniformly mixing the components and improves the synergistic effect of the components, so that the material has strong negative ion and infrared emission characteristics.
The conditions of the superfine pulverizing treatment in the invention can be set according to the conventional superfine pulverizing treatment conditions.
In a third aspect, the invention provides the application of the material in environmental protection, skin care, water quality purification, air purification, electromagnetic radiation prevention and medical care.
Correspondingly, the material of the invention can be used for preparing paint, textile fabrics, cosmetics, purifying materials, electromagnetic radiation resistant materials, medical care products and the like.
The material prepared by the method not only has the functions of far infrared heating, warming, permeation, activation and the like generated by radiation, but also can release negative ions for a long time when being heated, so that a great deal of abundant negative ions are generated and exist continuously when a product user in various forms is in a relatively closed small space of the product, the user in the product can breathe smoothly, sufficient oxygen is inhaled, and the effect of the human spirit is enabled to be vibration and the reaction is sensitive. Medical science proves that the health care tea is in an environment with abundant anions for a long time, is beneficial to promoting metabolism of human bodies, improving heart and lung functions, enhancing disease resistance and improving sleep quality; the negative ions also have obvious analgesic effect, and can relieve the tension emotion of people; the existence of a large amount of negative ions has obvious effect of eliminating foreign flavor and purifying air in the closed space; has effect in prolonging fresh-keeping period of fruits and flowers. Therefore, the material can be further prepared into corresponding products, and is used in the fields of environmental protection, skin care, water quality purification, air purification, electromagnetic radiation prevention, medical care and the like.
It is worth mentioning that the material of the invention has higher antibacterial, sterilizing and mite-killing effects based on the negative ion and far infrared ray release performance of the material of the invention. In particular, the invention finds that the modified diatomite, aluminum oxide, medical stone and the like have synergistic sterilizing and mite removing effects when being used together. The possible reasons are: in one aspect, the diatomaceous earth has a micro-porous structure, and when the diatomaceous earth is in contact with microorganisms, micro-pores on the surface of the particles can adsorb and encapsulate the microorganisms and mites. And diatomaceous earth generally exhibits high alkalinity, and some microorganisms and mites are sensitive to alkaline environments, the high alkalinity of diatomaceous earth may inhibit their growth and reproduction. On the other hand, the diatomite has strong water absorption and can quickly absorb the water in the surrounding environment. Microorganisms and mites are very moisture dependent and if the surrounding environment becomes dry, the viability of the microorganisms is affected and even dies. In addition, the medical stone, the aluminum oxide and other components can stably release anions and radiate infrared rays, thereby playing a role in bacteriostasis. In combination, the two mechanisms can cooperatively play the synergistic effect of resisting bacteria, sterilizing and removing mites.
For example, the materials of the present invention can be prepared as coating products that cover the surface of a substrate after application, thereby achieving a durable antimicrobial and acarid-killing effect.
The substrate is any substrate that requires the paint, for example, a wall surface, a ceiling, etc.; can also be used for wood materials, such as wood floors or wood furniture back surfaces and other places which are easy to grow bacteria and mites.
It is to be understood that the present invention is not particularly limited in terms of the coating thickness and the number of coating times, and that the thickness of the coating may be, for example, 0.03mm,0.1mm,0.5mm,1mm or 2mm, typically but not limited; the number of applications may be, for example, 1, 2, 3, 4 or 5.
The coating method of the coating material of the present invention is not particularly limited, and the coating is intended to adhere the coating material to the surface of the substrate to exert the antibacterial and mite-killing functions of the coating material. For example: the coating mode can adopt any mode of brush coating, rolling coating or spraying.
The beneficial effects are that:
the material has high negative ion and far infrared emission efficiency, and the normal total emission can reach more than 88 percent.
Detailed Description
The conception and the technical effects produced by the present invention will be clearly and completely described in conjunction with the embodiments below to fully understand the objects, features and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention.
The weight of the related components mentioned in the present invention may refer not only to the specific content of each component, but also to the mass or weight ratio relationship between each component, so that any scaling up or scaling down of the content of the related components according to the present invention is within the scope of the disclosure of the embodiments of the present invention. Specifically, the mass described in the specification of the embodiment of the invention can be mass units known in the chemical industry fields such as kg, g, mg and mug.
Unless otherwise indicated, the technical means used in the examples are conventional means well known to those skilled in the art, and all materials or instruments used are commercially available.
Examples
The aluminum oxide used in the following examples was purchased from Jiangsu Xianfeng nanomaterial technologies Co., ltd, and the ratio of the particle size of 10-50nm was controlled to be 30-40%, and the ratio of the particle size of 100-200nm was controlled to be 60-70%.
The diatomaceous earth used in the examples below had a particle size of 5. Mu.m.
Example 1
The embodiment provides a material capable of stably emitting far infrared rays and anions, and the preparation method of the material is as follows:
s1, diatomite and ammonium bicarbonate are mixed according to a mass ratio of 100:1, calcining for 1min at 700 ℃ and floating to obtain the modified diatomite.
S2, weighing 30 parts by weight of aluminum oxide, 10 parts by weight of titanium dioxide, 5 parts by weight of zinc oxide, 5 parts by weight of silicon dioxide, 20 parts by weight of modified diatomite, 10 parts by weight of borax and 20 parts by weight of medical stone powder, uniformly mixing the mixed powder and deionized water according to 200g: adding 500mL of the mixture into a stirred ball mill for ball milling to reduce agglomeration of powder, and obtaining slurry after ball milling for 24 hours. And drying to remove deionized water in the slurry to obtain a pretreated material.
S3, calcining the pretreated material for 1.5 hours at 600 ℃ under the protection of nitrogen to obtain a composite material, naturally cooling to room temperature, crushing the composite material by high-speed air flow, and performing impact shearing action on the composite material by the air flow and impact, friction and shearing action on the composite material and other parts to deagglomerate the composite material, wherein the composite material has a certain crushing action. The particle size of the composite material powder after superfine grinding by air flow is distributed at 20-200nm, so that the material capable of stably emitting far infrared rays and negative ions is obtained.
Example 2
The embodiment provides a material capable of stably emitting far infrared rays and anions, and the preparation method of the material is as follows:
s1, diatomite and ammonium bicarbonate are mixed according to a mass ratio of 100:1, calcining for 1min at 650 ℃ and floating to obtain the modified diatomite.
S2, weighing 40 parts by weight of aluminum oxide, 10 parts by weight of titanium dioxide, 5 parts by weight of zinc oxide, 5 parts by weight of silicon dioxide, 10 parts by weight of modified diatomite, 15 parts by weight of borax and 15 parts by weight of medical stone powder, uniformly mixing the mixed powder and deionized water according to 200g: adding 500mL of the mixture into a stirred ball mill for ball milling to reduce agglomeration of powder, and obtaining slurry after ball milling for 24 hours. And drying to remove deionized water in the slurry to obtain a pretreated material.
S3, calcining the pretreated material at 700 ℃ for 1.5 hours under the protection of nitrogen to obtain a composite material, naturally cooling to room temperature, crushing the composite material by high-speed air flow, and performing impact shearing action on the composite material by the air flow and impact, friction and shearing action on the composite material and other parts to deagglomerate the composite material, wherein the composite material has a certain crushing action. The particle size of the composite material powder after superfine grinding by air flow is distributed at 20-200nm, so that the material capable of stably emitting far infrared rays and negative ions is obtained.
Example 3
The embodiment provides a material capable of stably emitting far infrared rays and anions, and the preparation method of the material is as follows:
s1, diatomite and ammonium bicarbonate are mixed according to a mass ratio of 80:1, calcining for 1min at 700 ℃ and floating to obtain the modified diatomite.
S2, weighing 35 parts by weight of aluminum oxide, 10 parts by weight of titanium dioxide, 5 parts by weight of manganese dioxide, 5 parts by weight of copper oxide, 10 parts by weight of silicon dioxide, 10 parts by weight of modified diatomite, 10 parts by weight of borax and 15 parts by weight of medical stone powder, uniformly mixing the mixed powder and deionized water according to 200g: adding 500mL of the mixture into a stirred ball mill for ball milling to reduce agglomeration of powder, and obtaining slurry after ball milling for 36 hours. And drying to remove deionized water in the slurry to obtain a pretreated material.
S3, calcining the pretreated material for 1h at 750 ℃ under the protection of nitrogen to obtain a composite material, crushing the composite material by high-speed air flow after naturally cooling to room temperature, and performing impact shearing action on the composite material by the air flow and deagglomeration of the composite material and impact, friction and shearing action of other parts by the air flow through impact among particles of the composite material, wherein the composite material has a certain crushing action. The particle size of the composite material powder after superfine grinding by air flow is distributed at 20-200nm, so that the material capable of stably emitting far infrared rays and negative ions is obtained.
Example 4
This example provides a material capable of stably emitting far infrared rays and negative ions, the preparation method of which is performed with reference to example 1, except that: the step S1 specifically comprises the following steps:
s1, diatomite and ammonium bicarbonate are mixed according to a mass ratio of 400:1, calcining for 1min at 800 ℃ and floating to obtain the modified diatomite.
Example 5
This example provides a material capable of stably emitting far infrared rays and negative ions, the preparation method of which is performed with reference to example 1, except that:
the particle size of the aluminum oxide used is 10-50nm.
Example 6
This example provides a material capable of stably emitting far infrared rays and negative ions, the preparation method of which is performed with reference to example 1, except that: without superfine grinding treatment.
Comparative example 1
This comparative example provides a material capable of stably emitting far infrared rays, negative ions, the preparation method of which is performed with reference to example 1, except that: the step S2 specifically comprises the following steps:
s2, weighing 30 parts by weight of aluminum oxide, 20 parts by weight of modified diatomite, 10 parts by weight of borax and 20 parts by weight of medical stone powder, uniformly mixing, and mixing the mixed powder with deionized water according to 200g: adding 500mL of the mixture into a stirred ball mill for ball milling to reduce agglomeration of powder, and obtaining slurry after ball milling for 24 hours. And drying to remove deionized water in the slurry to obtain a pretreated material.
Comparative example 2
The comparative example provides a material capable of stably emitting far infrared rays and negative ions, and the preparation method of the material is as follows:
s2, weighing 30 parts by weight of light shale, 10 parts by weight of golden red titanium dioxide, 15 parts by weight of magnesium oxide, 10 parts by weight of manganese dioxide, 10 parts by weight of copper oxide, 5 parts by weight of nickel oxide and 5 parts by weight of cobalt oxide, uniformly mixing the mixed powder and deionized water according to 200g: adding 500mL of the mixture into a stirred ball mill for ball milling to reduce agglomeration of powder, and obtaining slurry after ball milling for 24 hours. And drying to remove deionized water in the slurry to obtain a pretreated material.
Comparative example 3
This comparative example provides a material capable of stably emitting far infrared rays, negative ions, the preparation method of which is performed with reference to example 1, except that: the step S2 specifically comprises the following steps:
s2, weighing 30 parts by weight of aluminum oxide, 10 parts by weight of titanium dioxide, 5 parts by weight of zinc oxide, 5 parts by weight of silicon dioxide, 20 parts by weight of modified diatomite and 10 parts by weight of borax, uniformly mixing, and mixing the mixed powder with deionized water according to 200g: adding 500mL of the mixture into a stirred ball mill for ball milling to reduce agglomeration of powder, and obtaining slurry after ball milling for 24 hours. And drying to remove deionized water in the slurry to obtain a pretreated material.
Comparative example 4
This comparative example provides a material capable of stably emitting far infrared rays, negative ions, the preparation method of which is performed with reference to example 1, except that: the steps S1 and S2 specifically comprise:
s1, calcining diatomite at 700 ℃ for 1min (ammonium bicarbonate is not added for modification);
s2, weighing 30 parts by weight of aluminum oxide, 10 parts by weight of titanium dioxide, 5 parts by weight of zinc oxide, 5 parts by weight of silicon dioxide, 20 parts by weight of kieselguhr, 10 parts by weight of borax and 20 parts by weight of medical stone powder, uniformly mixing the mixed powder and deionized water according to 200g: adding 500mL of the mixture into a stirred ball mill for ball milling to reduce agglomeration of powder, and obtaining slurry after ball milling for 24 hours. And drying to remove deionized water in the slurry to obtain a pretreated material.
Comparative example 5
This comparative example provides a material capable of stably emitting far infrared rays, negative ions, the preparation method of which is performed with reference to example 1, except that: the step S2 specifically comprises the following steps:
s2, weighing 30 parts by weight of aluminum oxide, 10 parts by weight of titanium dioxide, 5 parts by weight of zinc oxide, 5 parts by weight of silicon dioxide, 10 parts by weight of borax and 20 parts by weight of medical stone powder, uniformly mixing the mixed powder and deionized water according to 200g: adding 500mL of the mixture into a stirred ball mill for ball milling to reduce agglomeration of powder, and obtaining slurry after ball milling for 24 hours. And drying to remove deionized water in the slurry to obtain a pretreated material.
Comparative example 6
This comparative example provides a material capable of stably emitting far infrared rays, negative ions, the preparation method of which is performed with reference to example 1, except that: the step S2 specifically comprises the following steps:
s2, weighing 10 parts by weight of aluminum oxide, 5 parts by weight of titanium dioxide, 5 parts by weight of zinc oxide, 35 parts by weight of silicon dioxide, 35 parts by weight of modified diatomite, 5 parts by weight of borax and 5 parts by weight of medical stone powder, uniformly mixing the mixed powder and deionized water according to 200g: adding 500mL of the mixture into a stirred ball mill for ball milling to reduce agglomeration of powder, and obtaining slurry after ball milling for 24 hours. And drying to remove deionized water in the slurry to obtain a pretreated material.
The materials capable of stably emitting far infrared rays and negative ions provided in examples 1 to 6 and comparative examples 1 to 6 were subjected to the negative ion concentration measurement and the infrared measurement, respectively. The specific detection methods are as follows:
1. the method for measuring the concentration of the negative ions comprises the following steps: 500g of the materials capable of stably emitting far infrared rays and negative ions provided in examples 1 to 6 and comparative examples 1 to 6 are respectively placed in a sealed box, uniformly spread out and sealed for 24 hours, 20 data are obtained each time every 1 hour by using a negative ion detector, and the average value of each data is obtained as a final detection result, and specific test data are shown in Table 1.
2. Normal total emissivity: 500g of the materials capable of stably emitting far infrared rays and negative ions provided in examples 1 to 6 and comparative examples 1 to 6 were respectively placed in a sealed box, uniformly spread out and sealed for 24 hours, and detected by a far infrared ray emissivity tester, and specific test data are shown in Table 1.
TABLE 1
| Anion concentration (ions/cm) 3 ) | Normal total emissivity (%) | |
| Example 1 | 46064 | 92 |
| Example 2 | 46125 | 91 |
| Example 3 | 45766 | 91 |
| Example 4 | 42796 | 89 |
| Example 5 | 43004 | 90 |
| Example 6 | 43508 | 90 |
| Comparative example 1 | 26270 | 73 |
| Comparative example 2 | 41992 | 87 |
| Comparative example 3 | 32665 | 80 |
| Comparative example 4 | 38919 | 84 |
| Comparative example 5 | 36410 | 84 |
| Comparative example 6 | 30588 | 77 |
As can be seen from the data in table 1, the materials of examples 1 to 6 can stably emit strong far infrared rays and negative ions, and the material of comparative example 2 is the same type of material as the prior art, and the effect of the material of the present invention is equivalent to or even better than that of the material. Comparative example 1 by default of transition metal oxide, comparative example 3 by default of medical stone, comparative example 4 by unmodified diatomite, comparative example 5 by default of diatomite, and improper amounts of each component of comparative example 6 all resulted in reduced normal full emissivity and/or negative ion concentration of the material.
Application example
The materials provided in examples 1 to 6 and comparative examples 1 to 6, which are capable of stably emitting far infrared rays and negative ions, were uniformly mixed with a proper amount of plant essential oil (for attracting mites) and deionized water, respectively, to obtain the corresponding antibacterial and mite-killing paint, which was named application examples #1 to #6 and application comparative examples #1 to #6.
Antibacterial performance test: referring to the method of AATCC100-2012 Standard of evaluation method for antibacterial textiles, the dosage of the tested sample is O.W.F=1%, the tested base material is 100% cotton textiles, and the difference from the standard is that a 30W fluorescent lamp is added for 24 hours in the testing process.
Anti-mite performance test: with reference to the method of GB/T24253-2009 evaluation of anti-mite Properties of textiles, a sample to be tested is measured according to 20g/m 2 Is uniformly sprayed on the textile for testing. Unlike the standard, the test was conducted with a 30W fluorescent lamp for 24 hours.
| Antibacterial ratio (Staphylococcus aureus) | Anti-mite rate | |
| Example 1 | 99.9％ | 94％ |
| Example 2 # | 99.9％ | 92％ |
| Example 3 | 99.9％ | 92％ |
| Example 4 | 99.8％ | 91％ |
| Example 5 | 99.7％ | 90％ |
| Example 6 | 99.7％ | 91％ |
| Comparative example 1 | 89.9％ | 48％ |
| Comparative example 2 | 85.2％ | 35％ |
| Comparative example 3 | 91.5％ | 46％ |
| Comparative example 4 | 94.0％ | 61％ |
| Comparative example 5 | 83.9％ | 37％ |
| Comparative example 6 | 89.7％ | 52％ |
The results show that the products prepared in examples #1-6 have higher than 99.5% inhibition rate on staphylococcus aureus and higher than 90% inhibition effect on mites, and are obviously better than those in comparative examples #1-6.
The above-described embodiments of the present invention have been described in detail, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. The material capable of stably emitting far infrared rays and negative ions is characterized by comprising the following raw materials in parts by weight:
10-50 parts of aluminum oxide, 5-20 parts of silicon dioxide, 10-80 parts of transition metal oxide, 5-30 parts of kieselguhr, 5-20 parts of borax and 10-30 parts of medical stone;
the diatomite is ammonium bicarbonate modified diatomite, and the modification method comprises the following steps:
diatomite and ammonium bicarbonate are mixed according to the mass ratio of 50-400: 1, and calcining at 500-800 ℃ for 20-120 s.
2. The material according to claim 1, wherein the preparation raw materials comprise the following components in parts by weight:
20-50 parts of aluminum oxide, 5-20 parts of silicon dioxide, 10-30 parts of transition metal oxide, 5-30 parts of kieselguhr, 5-20 parts of borax and 10-30 parts of medical stone.
3. The material of claim 1, wherein the particle size of the aluminum oxide is 10 to 200nm.
4. A material according to claim 3, wherein the alumina has a particle size of 10 to 50nm in a ratio of 20 to 50% and a particle size of 100 to 200nm in a ratio of 50 to 80%.
5. The material of claim 1, wherein the transition metal oxide comprises at least one of titanium dioxide, zinc oxide, manganese dioxide, copper oxide, nickel oxide, cobalt oxide, yttrium oxide, zirconium dioxide.
6. The material of claim 5, wherein the transition metal oxide comprises the following components in mass percent:
40-80% of titanium dioxide, 0-40% of zinc oxide, 0-30% of manganese dioxide and 0-30% of copper oxide.
7. The material according to claim 1, wherein the modification method is:
diatomite and ammonium bicarbonate are mixed according to the mass ratio of 50-200: 1, and calcining at 600-700 ℃ for 20-120 s.
8. A method of preparing a material according to any one of claims 1 to 7, comprising the steps of:
mixing the components according to a certain proportion, ball milling, calcining, and superfine grinding.
9. The method according to claim 8, wherein the calcination temperature is 500 to 800 ℃ and/or the calcination time is 1 to 2 hours.
10. Use of a material according to any one of claims 1-7 for environmental protection, skin care, purification of water quality, purification of air, protection against electromagnetic radiation, health care.
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