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Method for preparing spherical nanomonocrystalline particle

A quartz particle and nano-single crystal technology, which is applied in the direction of single crystal growth, single crystal growth, chemical instruments and methods, etc., can solve the problems of quartz particle agglomeration, irregular shape, high production cost, etc., and achieve high solubility and low production cost , to avoid the effect of energy consumption

Active Publication Date: 2015-04-15
CHANGZHOU YINGZHONG NANO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The technical problem to be solved by the present invention is the disadvantages of quartz particle agglomeration, irregular shape, impurities and high production cost in the existing quartz preparation process.

Method used

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  • Method for preparing spherical nanomonocrystalline particle
  • Method for preparing spherical nanomonocrystalline particle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1 gram of NaOH and 2 grams of NaCl were respectively added to 71.5 grams of 30nm colloidal silicon dioxide solution with a concentration of 3.84% (weight), and mixed evenly. Then, the mixture was poured into a polytetrafluoroethylene hydrothermal reaction kettle, the temperature was raised to 200°C at 5°C / min, the pressure was 18 atmospheres, and the temperature was kept constant for 72 hours. After cooling, it was settled by centrifugation, washed twice with water, dried at 120°C, and collected.

[0034] Transmission electron microscope pictures as figure 1 As shown in the transmission electron microscope images of these nano-quartz powder samples, it can be seen that the particles are spherical, non-agglomerated, monodisperse, and uniform in size. High-resolution transmission electron microscopy shows that these spherical particles have regular lattices. Each nano-quartz particle is a quartz single crystal, and the diameter of the particle is about 28nm.

[0035] T...

Embodiment 2

[0038] 4 grams of KOH and 1 gram of KCl were respectively added to 71.5 grams of 35nm colloidal silica solution with a concentration of 3.84% (weight), and mixed evenly. Then, pour this mixture into a polytetrafluoroethylene hydrothermal reaction kettle, stir it magnetically, raise the temperature to 150°C at 5°C / min, and keep the temperature constant for 48 hours at a pressure of 14 atmospheres. After cooling, it was settled by centrifugation, washed twice with water, dried at 150°C, and collected.

[0039] Transmission electron microscope pictures show that the particles are spherical, non-agglomerated, monodisperse, and uniform in size. High-resolution transmission electron microscopy shows that these spherical particles have regular lattices. Each nano-quartz particle is a quartz single crystal, and the diameter of the particle is about 20nm. The product after hydrothermal synthesis is a mixture of NaCl and α-quartz. The powder sample was washed and dried by centrifugal ...

Embodiment 3

[0042] 1 gram of NaOH and 4 grams of KCl were respectively added to 150 grams of 100 nanometer colloidal silicon dioxide solution with a concentration of 4.5% (weight), and mixed evenly. Then, pour this mixture into a polytetrafluoroethylene hydrothermal reaction kettle, stir it magnetically, raise the temperature to 150°C at 5°C / min, and keep the temperature constant for 24 hours at a pressure of 5 atmospheres. After cooling, it was settled by centrifugation, washed three times with water, dried at 100°C, and collected.

[0043] Transmission electron microscope pictures show that the particles are spherical, non-agglomerated, monodisperse, and uniform in size. High-resolution transmission electron microscopy shows that these spherical particles have regular lattices. Each nano-quartz particle is a quartz single crystal, and the diameter of the particle is about 80nm. The product after hydrothermal synthesis is a mixture of KCl and α-quartz. The powder sample was washed and ...

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Abstract

The invention relates to a traditional Chinese medicine for treating tonsillitis and pharyngitis, which belongs to the traditional Chinese medicine. The traditional Chinese medicine for treating tonsillitis and pharyngitis is prepared by grinding the following raw materials with weight parts,30-60 parts of Boat-fruited Scaphium Seed, 30-60 parts of Radix Ophiopogonis, 30-60 parts of subprostrate sophora, 20-40 parts of peppermint and 20-40 parts of Platycodon grandiflorum. According to the invention, various components are organically combined, and have the functions of dispelling wind evil, clearing away heat, relieving sore throat for removing edema and the like. The traditional Chinese medicine for treating tonsillitis and pharyngitis has the advantages of no side effect and obvious healing effect.

Description

[0001] Jiang Xingsheng technical field [0002] The invention relates to a method for preparing spherical nano single crystal quartz particles. Background technique [0003] Quartz has high dielectric properties, good heat resistance, high hardness, excellent mechanical properties, chemical stability, low thermal expansion coefficient, good electrical insulation, and UV resistance. It is widely used in high-strength, super-hard, high-toughness, and superplastic materials. And insulating materials, electrode materials and superconducting materials, special low-temperature sintered refractory materials, heat exchange materials and other high-tech new materials. Quartz powder is a high-quality raw material for making optical fibers. Ultrafine quartz powder has the characteristics of small particle size, large specific surface area, and good dispersion performance. With its superior stability, reinforcement, thickening and thixotropy, it is widely used in optical glass, electr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/18C30B7/10
Inventor 姜兴茂姜兴盛
Owner CHANGZHOU YINGZHONG NANO TECH
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