Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

a kind of al 2 o 3 Preparation method and application of porous ceramics

A technology of porous ceramics and pore-forming agent, which is applied in the field of preparation of Al2O3 porous ceramics, can solve the problems of complex preparation process, low pore-forming ability, limited gas amount, etc., and achieves simple preparation process, good compressive strength, and good reduction effect. Effect

Active Publication Date: 2022-03-04
HUBEI CHINA TOBACCO IND
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] E-liquid or flavors and fragrances have high requirements on the carrier, and the carrier for tobacco generally has the following problems: 1. The preparation process is complicated and the production cost is high; 2. The miscellaneous smell or foreign matter is produced by heating; 3. The ability to absorb and store liquid is not enough; 4. The thermal conductivity is not high, and the heat cannot be quickly transferred to the storage liquid when heated, so that the storage liquid cannot be atomized quickly, which affects the user's consumption experience
Therefore, the amount of gas generated is limited, so there is a problem of low pore-forming ability

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
  • a kind of al <sub>2</sub> o <sub>3</sub> Preparation method and application of porous ceramics
  • a kind of al <sub>2</sub> o <sub>3</sub> Preparation method and application of porous ceramics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] a kind of Al 2 o 3 A method for preparing porous ceramics, comprising the steps of:

[0033] (1) Prepare pore-forming agent A: Prepare 5g of graphite and 10.5g of starch, dissolve the starch to obtain a starch solution, mix the graphite and 20% ethanol solution evenly to obtain a mixed solution, and drop the starch solution into the mixed solution under magnetic stirring After standing and layering to remove the supernatant, the precipitate was washed 3 times with deionized water and then placed in a drying oven at 100°C for 5 hours to obtain starch-coated graphite as a pore-forming agent.

[0034] (2) Mixing: weigh 50.26g Al 2 o 3 and 19.74g MgO, mixed with the pore former A obtained above for 30min in a ball mill, the ratio of material to ball during mixing was 1:2.

[0035] (3) Molding: Press a Φ16.5mm porous ceramic disc: Weigh 1g of the mixed material and mix it into a disc-shaped mold, apply a pressure of 50N to the mixed material, hold the pressure for 30s, and...

Embodiment 2

[0041] This example is basically the same as Example 1, except that the sintering system of this example is as follows: first, the temperature is raised to 250°C at a heating rate of 5°C / min, and the temperature is kept at 35min; The temperature was raised to 600°C at a rate of 30 minutes, and finally the temperature was raised to 1550°C at a rate of 3°C / min, and held at 120 minutes. Then air-cooled and cooled to room temperature to obtain Al 2 o 3 porous ceramics.

[0042] For the Al obtained in this example 2 o 3 The porous ceramics were tested according to the method in Example 1: the test results are shown in Table 2 below.

Embodiment 3

[0044] This example is basically the same as Example 1, except that the sintering system of this example is as follows: first, the temperature is raised to 75°C at a heating rate of 5°C / min, and the temperature is kept for 35 minutes; Raise the temperature to 250°C and keep it for 35 minutes; then raise the temperature to 600°C at a rate of 5°C / min and keep it for 40 minutes; then raise the temperature to 1400°C at a rate of 3°C / min and keep it for 60 minutes; The heating rate was raised to 1550°C and kept for 120 minutes. Then air-cooled and cooled to room temperature to obtain Al 2 o 3 porous ceramics.

[0045] For the Al obtained in this example 2 o 3 The porous ceramics were tested according to the method in Example 1: the test results are shown in Table 2 below.

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

No PUM Login to View More

Abstract

The invention relates to the technical field of tobacco carriers, in particular to an Al 2 o 3 Preparation methods and applications of porous ceramics. It uses magnesium raw material, aluminum raw material, and pore-forming agent as raw materials, and sequentially includes steps of mixing, molding, drying, and sintering; the pore-forming agent includes inorganic carbon coated with starch; in the sintering step, sequentially includes: a. To 220-300°C, keep warm for more than 30min; b. raise the temperature to above 1500°C, keep warm for more than 30min. In the present invention, the starch-coated inorganic carbon is used as a pore-forming agent. During the sintering process, starch is used to form pores at a low temperature, and the pores are supported by the inorganic carbon to prevent the pores from collapsing and closing, which can effectively increase the apparent porosity of the porous ceramics obtained by sintering.

Description

technical field [0001] The invention relates to the technical field of tobacco carriers, in particular to an Al 2 o 3 Preparation methods and applications of porous ceramics. Background technique [0002] E-liquid or flavors and fragrances have high requirements on the carrier, and the carrier for tobacco generally has the following problems: 1. The preparation process is complicated and the production cost is high; 2. The miscellaneous smell or foreign matter is produced by heating; 3. The ability to absorb and store liquid is not enough; 4. The thermal conductivity is not high, and the heat cannot be quickly transferred to the storage liquid when heated, so that the storage liquid cannot be quickly atomized, which affects the user's consumption experience. [0003] Although the carrier in the prior art can realize the atomization of e-liquid or flavor and fragrance at a certain temperature, there are still some problems in its application in the actual atomization system...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/10A24D1/20C04B35/64C04B38/06
CPCC04B35/10A24D1/20C04B35/64C04B38/068C04B2235/6567C04B2235/425C04B2235/422C04B2235/6562C04B2235/3222C04B38/0074
Inventor 洪俊杰刘磊朱峰石秋香肖茜
Owner HUBEI CHINA TOBACCO IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com