Porous ceramics preparation method, porous ceramics and application thereof

A technology of porous ceramics and precursor powder, which is applied in the field of preparation of porous ceramics, can solve the problems that porous ceramics cannot take into account the strength and porosity, and cannot be used in electronic cigarettes, etc., and achieves the effect of improving strength, ensuring porosity and stable physical structure.

Active Publication Date: 2016-02-03
SHENZHEN SMOORE TECH LTD +1
View PDF4 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the porous ceramics prepared by the existing preparation methods of porous ceramics ca...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Porous ceramics preparation method, porous ceramics and application thereof
  • Porous ceramics preparation method, porous ceramics and application thereof
  • Porous ceramics preparation method, porous ceramics and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] see figure 1 , a preparation method of porous ceramics, comprising the following steps:

[0025] Step S110, uniformly mixing amorphous silica, aluminum oxide and ferric oxide to obtain a mixture, calcining the mixture at 1000°C to 1400°C for 0.5 hours to 3 hours to obtain a precursor, grinding the precursor to obtain a precursor powder.

[0026] Among them, in the mixture, by mass percentage, amorphous silicon dioxide (SiO 2 ) accounted for 80% to 98%, aluminum oxide (Al 2 o 3 ) accounted for 1% to 10%, ferric oxide (Fe 2 o 3 ) accounted for 1% to 10%.

[0027] Preferably, amorphous silicon dioxide, aluminum oxide and ferric oxide are all analytically pure.

[0028] Preferably, the precursor powder is obtained by grinding the precursor through a 50-mesh standard sieve. Of course, other methods can also be used to screen the precursor powder, as long as the particle size of the precursor powder meets the requirements.

[0029] Preferably, the calcination is carr...

Embodiment 1

[0054] Take SiO by weight 2 80 grams, Al 2 o 3 10 g, Fe 2 o 3 10 grams of planetary balls were milled for 2 hours and calcined in a high-temperature furnace at a temperature of 1200° C. for 1 hour. After calcining, the precursor powder was obtained by grinding through a 50-mesh standard sieve. According to 90 grams of precursor powder and 10 grams of pore-forming agent wood fiber, weigh the raw materials and stir and mix for 30 minutes to obtain a mixed premix, wherein the diameter of the wood fiber is 300 μm and the length is 1-3 mm; according to the premix: water = 3 : 1 ratio (mass ratio) was added into water and mixed and stirred for 5 minutes to obtain wet material, which was packed into a cylindrical mold and pressed into a required green compact under a pressure of 0.5 MPa; The temperature was raised to 600°C at a rate of 2°C / min and held for 1 hour to remove the pore-forming agent and moisture; the sample was then heated to 1000°C at a rate of 2°C / min for sintering...

Embodiment 2

[0056] Take amorphous SiO by weight 2 98 grams, Al 2 o 3 1 g Fe 2 o 3 1 gram, planetary ball mill for 1 hour, calcined in a high-temperature furnace, calcined at 1000°C, calcined for 3 hours, and then ground and passed through a 50-mesh standard sieve to obtain the precursor powder; according to 60 grams of precursor powder, 40 grams of pore-forming agent starch Weigh the raw materials and mix them with a parallel planetary mill for 0.5h to obtain a mixed premix, wherein the particle size of the starch is 20 μm; according to the ratio (mass ratio) of premix: water=6:1, add water and mix and stir for 5min to obtain wet Put the material into a cylindrical mold, and press it into the required compact under 20Mpa pressure; put the compact into a high-temperature and normal-pressure resistance furnace, raise the temperature to 200°C at a rate of 1°C / min and keep it for 2 hours, and then raise the temperature at the same rate Heat at 600°C for 4 hours to remove the pore-forming ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Login to view more

Abstract

The present invention relates to a porous ceramics preparation method, porous ceramics and application of the porous ceramics in electronic cigarettes. The porous ceramics preparation method comprises the following steps: uniformly mixing amorphous silica, alumina and ferric oxide to obtain a mixture; calcining the mixture at a temperature of 1000 C DEG-1400 C DEG for 0.5-3 hours to obtain a precursor; grinding the precursor to obtain precursor powder, wherein the mixture comprises, by mass percentage, 80%-98% of the amorphous silica, 1%-10% of the aluminum oxide, and 1%-10% of the ferric oxide; uniformly mixing the precursor powder, sodium silicate, and a pore-forming agent to obtain a premix; uniformly mixing the premix and water for compression molding to obtain a green compact; keeping the green compact at a temperature of 200 C DEG-600 C DEG for 1-6 hours; and then sintering the kept green compact at a temperature of 700 C DEG-1200 C DEG for 0.5-3 hours to obtain the porous ceramic.

Description

technical field [0001] The invention relates to a preparation method of a porous ceramic, the porous ceramic and its application in electronic cigarettes. Background technique [0002] Porous ceramics are ceramic materials generally composed of aggregates, binders, and pore-forming agents and other components that are sintered at high temperatures. The interior has a large number of pore structures that are connected to each other and to the surface of the material. Due to the excellent properties of high porosity, stable chemical properties, large specific surface area, low bulk density, low thermal conductivity, high temperature resistance and corrosion resistance, porous ceramics have many applications in metallurgy, biology, energy, environmental protection and other fields. [0003] The atomizer of the electronic cigarette is the main part of the electronic cigarette to store the liquid and generate the smoke. It is necessary to ensure that the stored liquid does not le...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B38/00A24F47/00
Inventor 刘平昆周宏明李荐夏庆路
Owner SHENZHEN SMOORE TECH LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap