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A kind of ceramic atomizing core for electronic cigarette and its preparation method and application

An atomizing core and electronic cigarette technology, applied in the field of electronic cigarettes, can solve the problems of uneven heating, unfavorable industrialization development and market promotion of electronic cigarettes, poor smoke taste, etc., to overcome uneven heating and high compressive strength. Effect

Active Publication Date: 2022-07-29
深圳星光点点科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing electronic cigarette core products on the market have technical problems of uneven heating (even the generation of toxic gas formaldehyde due to excessive local temperature on the atomization surface), and the above technical defects have brought smoke taste to tobacco product consumers. Bad sensory experience, which is not conducive to the industrial development and marketing of e-cigarette-related products

Method used

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  • A kind of ceramic atomizing core for electronic cigarette and its preparation method and application
  • A kind of ceramic atomizing core for electronic cigarette and its preparation method and application

Examples

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Effect test

preparation example Construction

[0038] The weight ratio of each raw material in the preparation process of the atomizing core of the present invention is:

[0039] Monomer: Crosslinker: Dispersant: Solvent: Silicon Nitride Powder: Silicon Oxide Powder: Sintering Aid: Initiator = (20-27): (4-7): (1-1.8): 100: (10 -20):(30-50):(5-10);

[0040] The preparation process is:

[0041] 1. Monomer acrylamide, crosslinking agent N,N'-methylenebisacrylamide, dispersing agent ammonium polyacrylate and solvent deionized water) by weight (20~27): (4~7): (1 ~1.8): 100 mixed to prepare a premix;

[0042]2. Add (10-20) parts by weight of silicon nitride powder, (30-50) parts by weight of silicon oxide powder and (5-10) parts by weight of sintering aids (silicon oxide, magnesium oxide and calcium carbonate) into the premix. composition, 1:3:7);

[0043] 3. After adding (10-20) parts by weight of initiator ammonium sulfate, adjust the pH to 9-12 with an aqueous solution containing 25%-28% ammonia, and ball mill for 3-5 hou...

Embodiment 1

[0052] Example 1: Comparison of the present invention and conventional single ceramic powder

[0053] The present invention and the comparative example process and technical effect comparison are shown in Table 1 below, and each embodiment parameter in the table can be combined or replaced with other embodiment parameters;

[0054] Table 1

[0055]

[0056]

[0057] It can be seen from Table 1 that the compressive strength of the porous ceramic atomizing core prepared by the present invention is 40-45MPa, the oil absorption rate is 3.1-3.5mg / s, the porosity is 60-70%, and the thermal conductivity is 2.8-3.2W / (m·k); while conventionally use silica, glass frit 10-20, pore-forming agent (polystyrene microspheres), solvent (paraffin) and modifier (stearic acid) as raw materials for sintered atomization The core has a compressive strength of 10MPa, an oil absorption rate of 0.8mg / s, a porosity of 50%, and a thermal conductivity of 0.4W / (m·k). The porous ceramic atomizing c...

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Abstract

The invention relates to the technical field of electronic cigarettes, and discloses a ceramic atomizing core for electronic cigarettes and a preparation method and application thereof. The atomizing core of the present invention is divided into three core layers: outer, middle and inner in turn from the periphery to the center. Each core layer is sintered from silicon nitride and silicon oxide. The nitrogen in the outer, middle and inner core layers The aspect ratio of silicon carbide is gradually shortened, and all are columnar or rod-shaped powdery silicon nitride. In the present invention, carbon black and columnar or rod-shaped silicon nitride with different aspect ratios are introduced into the raw material ratio, the green body is prepared by the molding method of centrifugal and external magnetic field, and the two-step sintering method (degumming and sintering) is combined to make the carbon black and The oxygen impurities of silicon nitride are fully reacted under suitable temperature and atmosphere conditions to reduce the lattice oxygen content in silicon nitride, so as to prepare high thermal conductivity silicon nitride with dense outer and inner sparse arrangement and orderly arrangement of pores. Porous ceramic material.

Description

technical field [0001] The present application relates to the technical field of electronic cigarettes, and in particular, to a ceramic atomizing core for electronic cigarettes and a preparation method and application thereof. Background technique [0002] An electronic cigarette is an electronic device that transfers nicotine to the respiratory system by means of electric heating and atomization. The atomizing core in the electronic cigarette device absorbs the electronic atomizing liquid, and the electric heating wire heats the atomizing core, so that the absorbed electronic atomizing liquid is atomized to form an aerosol, which is inhaled by the user. [0003] At present, the existing electronic cigarette core products on the market have the technical problem of uneven heating (even the production of toxic gas formaldehyde due to the high local temperature of the atomizing surface), and the above-mentioned technical defects bring smoke taste to consumers of tobacco produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/06C04B35/14C04B35/622C04B35/638C04B35/64A24F40/46A24F40/70
CPCC04B38/067C04B35/14C04B35/622C04B35/638C04B35/64A24F40/46A24F40/70C04B2235/3873C04B2235/6562C04B2235/6567C04B2235/6581C04B2235/96C04B2235/9607C04B38/0074
Inventor 刘裔云
Owner 深圳星光点点科技有限公司
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