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Ceramic atomizing core for electronic cigarette as well as preparation method and application of ceramic atomizing core

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: 2021-11-12
深圳星光点点科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Ceramic atomizing core for electronic cigarette as well as preparation method and application of ceramic atomizing core
  • Ceramic atomizing core for electronic cigarette as well as preparation method and application of ceramic atomizing core

Examples

Experimental program
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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: crosslinking agent: 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, dispersant ammonium polyacrylate and solvent deionized water) in parts by weight (20-27): (4-7): (1 ~1.8): 100 mixed to prepare the 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) in the premixed liquid composition, 1:3:7);

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

Embodiment 1

[0052] Embodiment 1: the present invention and conventional single ceramic powder contrast

[0053] The present invention and comparative example process and technical effect contrast see 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); and conventionally use silicon dioxide, glass powder 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); it can be clearly seen from the compari...

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Abstract

The invention relates to the technical field of electronic cigarettes, and discloses a ceramic atomizing core for an electronic cigarette and a preparation method and application of the ceramic atomizing core. The atomizing core is sequentially divided into an outer core layer, a middle core layer and an inner core layer in the direction from the periphery to the center, each core layer is formed by sintering silicon nitride and silicon oxide, the length-diameter ratio of the silicon nitride in the outer core layer, the middle core layer and the inner core layer is gradually decreased, and the silicon nitride is columnar or rod-shaped powdery silicon nitride. Carbon black and columnar or rodlike silicon nitride with different length-diameter ratios are introduced into the raw material, a green body is prepared by adopting a forming method of centrifugation and an external magnetic field, and oxygen impurities of the carbon black and the silicon nitride are fully reacted under proper temperature and atmosphere conditions by combining a two-step sintering method (degumming and sintering), the lattice oxygen content in the silicon nitride is reduced, so that the high-thermal-conductivity porous ceramic material in which the silicon nitride is densely arranged outside and sparsely arranged inside and pores are orderly arranged is prepared.

Description

technical field [0001] The present application relates to the technical field of electronic cigarettes, in particular to a ceramic atomizing core for electronic cigarettes and its preparation method and application. Background technique [0002] Electronic cigarette set is an electronic device that delivers nicotine to the respiratory system by means of electric heating and atomization. The atomizing core in the electronic cigarette set absorbs the electronic atomizing liquid, and the 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 technical problems of uneven heating (even the generation of toxic gas formaldehyde due to excessive local temperature of the atomization surface), and the above technical defects have brought smoke taste to tobacco product consumers. This is not conducive to ...

Claims

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Application Information

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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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