CN111499360A - Terahertz material - Google Patents
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- CN111499360A CN111499360A CN202010421228.3A CN202010421228A CN111499360A CN 111499360 A CN111499360 A CN 111499360A CN 202010421228 A CN202010421228 A CN 202010421228A CN 111499360 A CN111499360 A CN 111499360A
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Abstract
The invention provides a terahertz material, and relates to the technical field of terahertz. The terahertz material comprises the following raw materials in parts by weight: 10-20 parts of organic material, 10-20 parts of crystal material, 5-10 parts of antioxidant, 10-16 parts of stabilizer, 5-10 parts of zirconia, 5-8 parts of high-resistivity silicon, 5-8 parts of magnetic graphene, 4-7 parts of wear-resisting agent, 8-14 parts of silicon dioxide, 10-15 parts of aluminum oxide and 7-14 parts of ferric oxide. The terahertz material prepared by the formula and the method is scientific and reasonable, simple in process and convenient to popularize, in use, the oxidation resistance of the terahertz material can be effectively improved through an antioxidant, a wear-resisting agent and a stabilizer, the stability is good, and meanwhile, the absorption rate of laser of the terahertz material can be effectively improved by adopting high-resistance silicon and magnetic graphene.
Description
Technical Field
The invention relates to the field of terahertz, in particular to a terahertz material.
Background
The terahertz metamaterial is a new material which is still developed by artificial synthesis; the frequency of interaction with the terahertz material is terahertz, and the frequency range for researching materials is generally 0.1-10 THz. The design of a new amplifier, the development of a new terahertz sensor and a phase modulator and the like, the terahertz material is a new material with the synthesis still developing. And the frequency at which it interacts is terahertz. The frequency range used to study materials is typically set at 0.1-10THz, with a bandwidth also known as the terahertz gap, since in this frequency range, it is clearly underutilized. Terahertz frequencies are higher than those of microwaves, but lower than those of infrared and visible light. This property means that it is difficult to respond to terahertz radiation with ordinary electronic components. Electronic technology is capable of controlling electron flow and microwave and radio frequency are well developed. The terahertz gap is also at the boundary of optical or infrared, visible and ultraviolet wavelengths. There is an ongoing need for well developed lens technology in this area. The wavelength or frequency range of terahertz also imposes the following requirements: security shelters, medical imaging (Image), radio communication systems, non-destructive evaluation, chemical identification, submillimeter astronomy. Finally, as non-ionizing radiation, the material has no inherent danger like X-ray, and the terahertz material is produced, so that the research of a new device becomes possible; for example, a new amplifier is designed, a new terahertz sensor and a phase modulator are developed, but in the prior art, the existing terahertz material is oxidized, so that the use of the terahertz material is reduced, and meanwhile, the terahertz material cannot better absorb laser.
Disclosure of Invention
The invention aims to provide a terahertz material, which can effectively improve the laser absorption rate of the terahertz material in use and can effectively improve the oxidation resistance of the terahertz material in use.
In order to achieve the purpose, the invention is realized by the following technical scheme: the terahertz material comprises the following raw materials in parts by weight: 10-20 parts of organic material, 10-20 parts of crystal material, 5-10 parts of antioxidant, 10-16 parts of stabilizer, 5-10 parts of zirconia, 5-8 parts of high-resistivity silicon, 5-8 parts of magnetic graphene, 4-7 parts of wear-resisting agent, 8-14 parts of silicon dioxide, 10-15 parts of aluminum oxide and 7-14 parts of ferric oxide.
As a further scheme of the invention: the feed comprises the following raw materials in parts by weight: 10 parts of organic material, 10 parts of crystal material, 5 parts of antioxidant, 10 parts of stabilizer, 5 parts of zirconia, 5 parts of high-resistivity silicon, 5 parts of magnetic graphene, 4 parts of wear-resisting agent, 8 parts of silicon dioxide, 10 parts of aluminum oxide and 7 parts of ferric oxide.
As a further scheme of the invention: the feed comprises the following raw materials in parts by weight: 15 parts of organic material, 15 parts of crystal material, 7 parts of antioxidant, 14 parts of stabilizer, 8 parts of zirconia, 7 parts of high-resistivity silicon, 6 parts of magnetic graphene, 6 parts of wear-resisting agent, 11 parts of silicon dioxide, 13 parts of aluminum oxide and 11 parts of ferric oxide.
As a further scheme of the invention: the feed comprises the following raw materials in parts by weight: 20 parts of organic material, 20 parts of crystal material, 10 parts of antioxidant, 16 parts of stabilizer, 10 parts of zirconia, 8 parts of high-resistivity silicon, 8 parts of magnetic graphene, 7 parts of wear-resisting agent, 14 parts of silicon dioxide, 15 parts of aluminum oxide and 14 parts of ferric oxide.
As a further scheme of the invention: the organic material is any one of TPX, PE and PTFE.
As a further scheme of the invention: the crystal material is any one of silicon, quartz and sapphire.
As a further scheme of the invention: the stabilizer is any one of organic rare earth, organic tin and lead salt compounds.
As a further scheme of the invention: the antioxidant is a synthetic antioxidant or a natural antioxidant.
A preparation method of a terahertz material comprises the following steps:
s1, weighing the raw materials in proportion, putting the weighed raw materials into a stirrer for stirring, wherein the rotating speed of a stirring paddle is 300r/min, and the stirring time is 2-3 h.
S2, placing the stirred raw materials into a grinding tool, placing the mould into a high-temperature furnace, and raising the temperature at a constant speed, wherein the temperature raising speed is 2-4 ℃/S, the temperature is raised to 850 ℃ and 1000 ℃, and the heating time is 7-10 h.
S3, naturally cooling the heated raw materials, cooling, and then putting the raw materials into a grinder for grinding, wherein the rotating speed of a grinding blade is 350r/min, and the grinding time is 30-50 min.
S4, passing the crushed raw materials through a 600-800-mesh screen to obtain fine particles.
The invention provides a terahertz material. The method has the following beneficial effects:
the terahertz material prepared by the formula and the method is scientific and reasonable, simple in process and convenient to popularize, in use, the oxidation resistance of the terahertz material can be effectively improved through an antioxidant, a wear-resisting agent and a stabilizer, the stability is good, and meanwhile, the absorption rate of laser of the terahertz material can be effectively improved by adopting high-resistance silicon and magnetic graphene.
Detailed Description
The invention is illustrated below with reference to specific examples. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention in any way.
Embodiment 1, a terahertz material comprises the following raw materials in parts by weight: the terahertz material prepared by the formula and the method is scientific, reasonable, simple in process and convenient to popularize, can effectively improve the oxidation resistance of the terahertz material through the antioxidant, the wear-resistant agent and the stabilizer, is good in stability, and can effectively improve the laser absorption rate of the terahertz material by adopting the high-resistance silicon and the magnetic graphene.
Specifically, the organic material is any one of TPX, PE, and PTFE.
Specifically, the crystal material is any one of silicon, quartz, and sapphire.
Specifically, the stabilizer is any one of organic rare earth, organic tin and lead salt compounds.
Specifically, the antioxidant is an artificially synthesized antioxidant or a natural antioxidant.
A preparation method of a terahertz material comprises the following steps:
s1, weighing the raw materials in proportion, putting the weighed raw materials into a stirrer for stirring, wherein the rotating speed of a stirring paddle is 300r/min, and the stirring time is 2-3 h.
S2, placing the stirred raw materials into a grinding tool, placing the mould into a high-temperature furnace, and raising the temperature at a constant speed, wherein the temperature raising speed is 2-4 ℃/S, the temperature is raised to 850 ℃ and 1000 ℃, and the heating time is 7-10 h.
S3, naturally cooling the heated raw materials, cooling, and then putting the raw materials into a grinder for grinding, wherein the rotating speed of a grinding blade is 350r/min, and the grinding time is 30-50 min.
S4, passing the crushed raw materials through a 600-800-mesh screen to obtain fine particles.
Embodiment 2, a terahertz material includes the following raw materials by weight: the terahertz material prepared by the formula and the method is scientific, reasonable, simple in process and convenient to popularize, can effectively improve the oxidation resistance of the terahertz material through the antioxidant, the wear-resistant agent and the stabilizer, is good in stability, and can effectively improve the laser absorption rate of the terahertz material by adopting the high-resistance silicon and the magnetic graphene.
Specifically, the organic material is any one of TPX, PE, and PTFE.
Specifically, the crystal material is any one of silicon, quartz, and sapphire.
Specifically, the stabilizer is any one of organic rare earth, organic tin and lead salt compounds.
Specifically, the antioxidant is an artificially synthesized antioxidant or a natural antioxidant.
A preparation method of a terahertz material comprises the following steps:
s1, weighing the raw materials in proportion, putting the weighed raw materials into a stirrer for stirring, wherein the rotating speed of a stirring paddle is 300r/min, and the stirring time is 2-3 h.
S2, placing the stirred raw materials into a grinding tool, placing the mould into a high-temperature furnace, and raising the temperature at a constant speed, wherein the temperature raising speed is 2-4 ℃/S, the temperature is raised to 850 ℃ and 1000 ℃, and the heating time is 7-10 h.
S3, naturally cooling the heated raw materials, cooling, and then putting the raw materials into a grinder for grinding, wherein the rotating speed of a grinding blade is 350r/min, and the grinding time is 30-50 min.
S4, passing the crushed raw materials through a 600-800-mesh screen to obtain fine particles.
Embodiment 3, a terahertz material comprises the following raw materials in parts by weight: the terahertz material prepared by the formula and the method is scientific, reasonable, simple in process and convenient to popularize, can effectively improve the oxidation resistance and good in stability of the terahertz material through the antioxidant, the wear-resistant agent and the stabilizing agent in use, and can effectively improve the laser absorption rate of the terahertz material by adopting the high-resistance silicon and the magnetic graphene.
Specifically, the organic material is any one of TPX, PE, and PTFE.
Specifically, the crystal material is any one of silicon, quartz, and sapphire.
Specifically, the stabilizer is any one of organic rare earth, organic tin and lead salt compounds.
Specifically, the antioxidant is an artificially synthesized antioxidant or a natural antioxidant.
A preparation method of a terahertz material comprises the following steps:
s1, weighing the raw materials in proportion, putting the weighed raw materials into a stirrer for stirring, wherein the rotating speed of a stirring paddle is 300r/min, and the stirring time is 2-3 h.
S2, placing the stirred raw materials into a grinding tool, placing the mould into a high-temperature furnace, and raising the temperature at a constant speed, wherein the temperature raising speed is 2-4 ℃/S, the temperature is raised to 850 ℃ and 1000 ℃, and the heating time is 7-10 h.
S3, naturally cooling the heated raw materials, cooling, and then putting the raw materials into a grinder for grinding, wherein the rotating speed of a grinding blade is 350r/min, and the grinding time is 30-50 min.
S4, passing the crushed raw materials through a 600-800-mesh screen to obtain fine particles.
Example 1, example 2 and example 3 differ in the content of the components of the inner components thereof, and the preparation methods thereof are the same.
In order to further explain the beneficial effects of the invention, the inventor selects the existing terahertz material, selects the terahertz material prepared by the invention at the same time, and compares the oxidation area, the service time and the same wavelength absorption rate of the terahertz material to obtain the following data, which are detailed in table 1:
TABLE 1 Experimental data sheet
| Area of oxidation | Time of use | Absorption rate at the same wavelength | |
| Existing terahertz material | 6% | 7d | 98% |
| Example 1 | 1.53% | 7d | 99.6% |
| Example 2 | 1.5% | 7d | 99.7% |
| Example 3 | 1.51% | 7d | 99.65% |
The experimental data show that the oxidation area of the terahertz material in the embodiments 1 to 3 is greatly reduced, and the oxidation resistance of the terahertz material can be improved, so that the terahertz material can be stably used, meanwhile, when the same wavelength is absorbed, the absorption rate is improved, and the absorption rate of the terahertz material to laser can be effectively improved in use.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (9)
1. The terahertz material is characterized by comprising the following raw materials in parts by weight: 10-20 parts of organic material, 10-20 parts of crystal material, 5-10 parts of antioxidant, 10-16 parts of stabilizer, 5-10 parts of zirconia, 5-8 parts of high-resistivity silicon, 5-8 parts of magnetic graphene, 4-7 parts of wear-resisting agent, 8-14 parts of silicon dioxide, 10-15 parts of aluminum oxide and 7-14 parts of ferric oxide.
2. The terahertz material as claimed in claim 1, comprising the following raw materials in parts by weight: 10 parts of organic material, 10 parts of crystal material, 5 parts of antioxidant, 10 parts of stabilizer, 5 parts of zirconia, 5 parts of high-resistivity silicon, 5 parts of magnetic graphene, 4 parts of wear-resisting agent, 8 parts of silicon dioxide, 10 parts of aluminum oxide and 7 parts of ferric oxide.
3. The terahertz material as claimed in claim 1, comprising the following raw materials in parts by weight: 15 parts of organic material, 15 parts of crystal material, 7 parts of antioxidant, 14 parts of stabilizer, 8 parts of zirconia, 7 parts of high-resistivity silicon, 6 parts of magnetic graphene, 6 parts of wear-resisting agent, 11 parts of silicon dioxide, 13 parts of aluminum oxide and 11 parts of ferric oxide.
4. The terahertz material as claimed in claim 1, comprising the following raw materials in parts by weight: 20 parts of organic material, 20 parts of crystal material, 10 parts of antioxidant, 16 parts of stabilizer, 10 parts of zirconia, 8 parts of high-resistivity silicon, 8 parts of magnetic graphene, 7 parts of wear-resisting agent, 14 parts of silicon dioxide, 15 parts of aluminum oxide and 14 parts of ferric oxide.
5. The terahertz material of any one of claims 1-4, wherein the organic material is any one of TPX, PE and PTFE.
6. The terahertz material of any one of claims 1 to 4, wherein the crystal material is any one of silicon, quartz and sapphire.
7. The terahertz material as claimed in any one of claims 1 to 4, wherein the stabilizer is any one of organic rare earth, organic tin and lead salt compounds.
8. The terahertz material of any one of claims 1-4, wherein the antioxidant is a synthetic antioxidant or a natural antioxidant.
9. A preparation method of a terahertz material is characterized by comprising the following steps:
s1, weighing the raw materials in proportion, putting the weighed raw materials into a stirrer for stirring, wherein the rotating speed of a stirring paddle is 300r/min, and the stirring time is 2-3 h;
s2, placing the stirred raw materials into a grinding tool, placing the mould into a high-temperature furnace, and raising the temperature at a constant speed, wherein the temperature raising speed is 2-4 ℃/S, the temperature is raised to 850-;
s3, naturally cooling the heated raw materials, cooling, and then putting the raw materials into a grinder for grinding, wherein the rotating speed of a grinding blade is 350r/min, and the grinding time is 30-50 min;
s4, passing the crushed raw materials through a 600-800-mesh screen to obtain fine particles.
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| CN202010421228.3A CN111499360A (en) | 2020-05-18 | 2020-05-18 | Terahertz material |
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| CN116239372A (en) * | 2023-03-21 | 2023-06-09 | 中国环境科学研究院 | Preparation method of terahertz material for reducing emission of nitrogen oxides and volatile organic compounds |
| CN116239372B (en) * | 2023-03-21 | 2024-01-26 | 中国环境科学研究院 | Preparation method of terahertz material for reducing emission of nitrogen oxides and volatile organic compounds |
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