KR20240025858A - Preparing method of high strength ceramic core-shell structure for aerosol generator - Google Patents
Preparing method of high strength ceramic core-shell structure for aerosol generator Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 78
- 239000000443 aerosol Substances 0.000 title claims abstract description 53
- 239000011258 core-shell material Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 claims abstract description 43
- 238000010304 firing Methods 0.000 claims abstract description 30
- 239000011521 glass Substances 0.000 claims abstract description 28
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 16
- 239000008187 granular material Substances 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- 229920006158 high molecular weight polymer Polymers 0.000 claims abstract description 6
- 239000011812 mixed powder Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims abstract description 4
- -1 polyethylene Polymers 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 9
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 4
- 238000004438 BET method Methods 0.000 claims description 3
- 108010010803 Gelatin Proteins 0.000 claims description 3
- 229920002907 Guar gum Polymers 0.000 claims description 3
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 229910020068 MgAl Inorganic materials 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 239000000665 guar gum Substances 0.000 claims description 3
- 229960002154 guar gum Drugs 0.000 claims description 3
- 235000010417 guar gum Nutrition 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 3
- 239000011118 polyvinyl acetate Substances 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229910011255 B2O3 Inorganic materials 0.000 claims description 2
- LJCFOYOSGPHIOO-UHFFFAOYSA-N antimony pentoxide Inorganic materials O=[Sb](=O)O[Sb](=O)=O LJCFOYOSGPHIOO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 230000008016 vaporization Effects 0.000 description 8
- 238000009834 vaporization Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000009766 low-temperature sintering Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/10—Devices using liquid inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/70—Manufacture
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62695—Granulation or pelletising
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
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- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/604—Pressing at temperatures other than sintering temperatures
Abstract
실시예는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법에 관한 것이다.
실시예는 금속 이온과 결합된 실리케이트 분말과 저온 소성용 글래스 분말을 혼합하는 제1 단계; 혼합 분말에 고분자 폴리머 및 분산제를 첨가하고 세라믹 과립을 제조하는 제2 단계; 세라믹 과립을 가압 성형하는 제3 단계; 및 성형체를 소결하는 제4 단계;를 포함하는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.The embodiment relates to a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generating device.
The embodiment includes a first step of mixing silicate powder combined with metal ions and glass powder for low-temperature firing; A second step of adding high molecular weight polymer and dispersant to the mixed powder and producing ceramic granules; A third step of pressure molding ceramic granules; and a fourth step of sintering the molded body. A method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided.
Description
실시예는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법에 관한 것이다. The embodiment relates to a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generating device.
도 1은 종래 기술에 따른 에어로졸 발생장치의 기화부를 상부에서 바라본 도면, 도 2는 종래 기술에 따른 에어로졸 발생장치의 기화부를 하부에서 바라본 도면이다. Figure 1 is a view of the vaporization part of the aerosol generating device according to the prior art as seen from the top, and Figure 2 is a view of the vaporization part of the aerosol generating device according to the prior art as seen from the bottom.
에어로졸 발생장치는 심지와 코일 조립체를 기화부로 채용할 경우 심지와 코일의 열전달 속도 차이로 인하여 액상과 심지의 국부적인 탄화를 방지할 수 있도록 발생할 가능성이 있다. 도 1 및 도 2에 도시된 에어로졸 발생장치의 기화부는 이러한 문제를 개선하기 위해 개발된 것으로, 본 발명의 제1 실시예에 따른 미세입자 발생장치의 기화부는, 액상을 흡수하여 담지하는 다공성 세라믹(10)과 다공성 세라믹(10)의 하면에 부착되어 액상을 가열하여 기화시키는 발열체(16)을 포함한다. 다공성 세라믹(10)의 표면에 부착된 발열체(10)에는 발열체(16)로 전류를 인가하는 전원선(14)이 연결될 수 있다. When an aerosol generator uses a wick and coil assembly as a vaporizing unit, there is a possibility of preventing local carbonization of the liquid and the wick due to the difference in heat transfer speed between the wick and the coil. The vaporization unit of the aerosol generator shown in FIGS. 1 and 2 was developed to improve this problem. The vaporization unit of the fine particle generator according to the first embodiment of the present invention is a porous ceramic (porous ceramic) that absorbs and supports the liquid phase. 10) and a heating element 16 attached to the lower surface of the porous ceramic 10 to heat and vaporize the liquid. A power line 14 that applies current to the heating element 16 may be connected to the heating element 10 attached to the surface of the porous ceramic 10.
다공성 세라믹(10)은 중앙에 액상이 담길 수 있는 저수조 역할을 하는 요홈(12)을 포함하고 있다. 액상이 담길 수 있는 저수조를 구비함으로써, 다공성 세라믹(10)의 기공 내로 좀 더 안정적으로 액상을 지속적으로 공급할 수 있다는 장점이 있다. The porous ceramic 10 includes a groove 12 in the center that serves as a reservoir in which liquid can be contained. By providing a reservoir that can contain the liquid, there is an advantage that the liquid can be supplied more stably and continuously into the pores of the porous ceramic 10.
또한, 다공성 세라믹(10)은, 액상의 이동은 느리게 이루어지며, 고온에서 에어로졸의 이동은 원활한 형태로, 다공성 세라믹(10)의 각 기공들은 연결되어 에어로졸이 지나갈 수 있는 기로를 형성할 수 있다. In addition, in the porous ceramic 10, the liquid phase moves slowly and the aerosol moves smoothly at high temperatures, and each pore of the porous ceramic 10 can be connected to form a passage through which the aerosol can pass.
그러나 다공성 세라믹(10)으로 에어로졸 발생장치의 기화부를 제조할 경우, 세라믹 자체의 높은 취성으로 인해 쉽게 깨질 수 있다는 단점이 있었다. 따라서 다공성 세라믹의 강도를 개선할 수 있는 기술의 개발이 요구된다. However, when manufacturing the vaporizing part of the aerosol generating device with porous ceramic 10, there was a disadvantage that it could be easily broken due to the high brittleness of the ceramic itself. Therefore, the development of technology that can improve the strength of porous ceramics is required.
실시예는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공하는 것을 목적으로 한다. The purpose of the examples is to provide a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generating device.
실시예는 금속 이온과 결합된 실리케이트 분말과 저온 소성용 글래스 분말을 혼합하는 제1 단계; 혼합 분말에 고분자 폴리머 및 분산제를 첨가하고 세라믹 과립을 제조하는 제2 단계; 세라믹 과립을 가압 성형하는 제3 단계; 및 성형체를 소결하는 제4 단계;를 포함하는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.The embodiment includes a first step of mixing silicate powder combined with metal ions and glass powder for low-temperature firing; A second step of adding high molecular weight polymer and dispersant to the mixed powder and producing ceramic granules; A third step of pressure molding ceramic granules; and a fourth step of sintering the molded body. A method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided.
실시예의 다른 일 태양으로서, 실리케이트 분말은 Mg, Al, Zr, Li, Ba, MgAl, Na 및 Ca 중에서 선택된 하나 이상의 금속 이온을 포함하는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, the silicate powder is a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that it contains one or more metal ions selected from Mg, Al, Zr, Li, Ba, MgAl, Na, and Ca. provides.
실시예의 다른 일 태양으로서, 금속 이온과 결합된 실리케이트 분말은 BET법으로 측정된 비표면적이 20 내지 500m2/g인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein the silicate powder combined with metal ions has a specific surface area of 20 to 500 m 2 /g as measured by the BET method.
실시예의 다른 일 태양으로서, 금속 이온과 결합된 실리케이트 분말의 평균 입경은 5 ~ 500㎛인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein the average particle diameter of the silicate powder combined with metal ions is 5 to 500 ㎛.
실시예의 다른 일 태양으로서, 저온 소성용 글래스 분말은 아몰포스 글래스 분말 및 저온 소성용 세라믹 분말(Bi2O3, Sb2O5, B2O3와 같은 ) 중 선택된 어느 하나 이상인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, the glass powder for low-temperature firing is a high-strength ceramic core-shell structure for an aerosol generator, wherein the glass powder for low-temperature firing is at least one selected from amorphous glass powder and ceramic powder for low-temperature firing (such as Bi2O3, Sb2O5, B2O3). Provides a manufacturing method.
실시예의 다른 일 태양으로서, 저온 소성용 글래스 분말은, 판상형, 파이버형, 다각형 중 어느 한 형태를 가지는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein the glass powder for low-temperature firing has any one of a plate-like shape, a fiber-like shape, and a polygonal shape.
실시예의 다른 일 태양으로서, 저온 소성용 글래스 분말은 600∼1200℃의 적정 소성 온도 범위를 가지는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein the glass powder for low-temperature firing has an appropriate firing temperature range of 600 to 1200°C.
실시예의 다른 일 태양으로서, 저온 소성용 글래스 분말의 평균 입경은 0.5∼50㎛인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein the glass powder for low-temperature firing has an average particle diameter of 0.5 to 50 μm.
실시예의 다른 일 태양으로서, 저온 소성용 글래스 분말은 금속 이온과 결합된 실리케이트 분말 대비 1중량부 내지 500중량부 혼합되는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein glass powder for low-temperature firing is mixed with 1 to 500 parts by weight of silicate powder bonded with metal ions.
실시예의 다른 일 태양으로서, 제2 단계에서 첨가되는 고분자 폴리머는, 폴리비닐알콜, 폴리비닐 아세테이트, 폴리에틸렌, 폴리비닐부티렌, 폴리프로필렌, 폴리염화비닐, 폴리 아크릴, 폴리 아크릴 아미드, 구아 검, 젤라틴 및 천연고무 중에서 선택된 하나 이상의 물질인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, the high molecular weight polymer added in the second step is polyvinyl alcohol, polyvinyl acetate, polyethylene, polyvinyl butyrene, polypropylene, polyvinyl chloride, polyacrylic, polyacrylamide, guar gum, and gelatin. and natural rubber. A method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided.
실시예의 다른 일 태양으로서, 제2 단계에서 첨가되는 분산제는 습윤성 분산제인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein the dispersant added in the second step is a wettable dispersant.
실시예의 다른 일 태양으로서, 제2 단계에서 제조되는 세라믹 과립의 평균 입경은 50∼1000㎛인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein the average particle diameter of the ceramic granules manufactured in the second step is 50 to 1000 ㎛.
실시예의 다른 일 태양으로서, 제4단계의 소결은 600∼1200℃ 온도 범위에서 이루어지는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein the fourth step of sintering is performed in a temperature range of 600 to 1200 ° C.
실시예의 다른 일 태양으로서, 제4단계의 소결 과정에서, 저온 소성용 글래스 분말의 표면 용융 및 넥킹 현상에 의해 세라믹 코어쉘 구조가 형성되는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, in the fourth step of sintering, the ceramic core-shell structure is formed by surface melting and necking of the glass powder for low-temperature firing. Manufacturing of a high-strength ceramic core-shell structure for an aerosol generator. Provides a method.
실시예가 제공하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 통해 제조된 에어로졸 발생장치용 세라믹 히터는, 코어쉘 구조를 가져 고강도를 가진다는 장점이 있다. The ceramic heater for an aerosol generator manufactured through the method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator provided in the example has the advantage of having a core-shell structure and high strength.
도 1은 종래 기술에 따른 에어로졸 발생장치의 기화부를 상부에서 바라본 도면,
도 2는 종래 기술에 따른 에어로졸 발생장치의 기화부를 하부에서 바라본 도면,
도 3은 실시예에 따른 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법의 플로우 차트,
도 4는 실시예에 따른 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법에 따라 제조된 세라믹 코어쉘 구조체의 개략도,
도 5는 실시예에 따른 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법에 따라 제조된 세라믹 코어쉘 구조체의 주사현미경 사진. 1 is a view of the vaporization unit of an aerosol generating device according to the prior art viewed from the top;
Figure 2 is a view from the bottom of the vaporization unit of the aerosol generating device according to the prior art;
Figure 3 is a flow chart of a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator according to an embodiment;
Figure 4 is a schematic diagram of a ceramic core-shell structure manufactured according to a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generating device according to an embodiment;
Figure 5 is a scanning microscope photo of a ceramic core-shell structure manufactured according to a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generating device according to an example.
이하, 도면을 참조하여 발명을 더욱 상세하게 설명한다.Hereinafter, the invention will be described in more detail with reference to the drawings.
도 3은 실시예에 따른 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법의 플로우 차트, 도 4는 실시예에 따른 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법에 따라 제조된 세라믹 코어쉘 구조체의 개략도, 도 5는 실시예에 따른 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법에 따라 제조된 세라믹 코어쉘 구조체의 주사현미경 사진이다. Figure 3 is a flow chart of a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generating device according to an embodiment, and Figure 4 is a ceramic core-shell structure manufactured according to a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generating device according to an embodiment. A schematic diagram and FIG. 5 are scanning microscope photographs of a ceramic core-shell structure manufactured according to a method of manufacturing a high-strength ceramic core-shell structure for an aerosol generating device according to an example.
실시예에 따른 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법은 금속 이온과 결합된 실리케이트 분말과 저온 소성용 글래스 분말을 혼합하는 제1 단계(S1), 혼합 분말에 고분자 폴리머 및 분산제를 첨가하고 세라믹 과립을 제조하는 제2 단계(S2), 세라믹 과립을 가압 성형하는 제3 단계(S3) 및 성형체를 소결하는 제4 단계(S4)를 포함한다.The method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator according to an embodiment includes a first step (S1) of mixing silicate powder combined with metal ions and glass powder for low-temperature sintering, adding a high molecular weight polymer and a dispersant to the mixed powder, and It includes a second step (S2) of manufacturing ceramic granules, a third step (S3) of pressure molding the ceramic granules, and a fourth step (S4) of sintering the molded body.
이때, 제1 단계에서 혼합되는 실리케이트 분말은 Mg, Al, Zr, Li, Ba, MgAl, Na 및 Ca 중에서 선택된 하나 이상의 금속 이온을 포함한다. 이때, 금속 이온과 결합된 실리케이트 분말은 BET법으로 측정된 비표면적이 100 내지 450m2/g인 것이 바람직하며, 금속 이온과 결합된 실리케이트 분말의 평균 입경은 5 ~ 500㎛인 것이 바람직하다. At this time, the silicate powder mixed in the first step contains one or more metal ions selected from Mg, Al, Zr, Li, Ba, MgAl, Na, and Ca. At this time, the silicate powder bonded to the metal ion preferably has a specific surface area measured by the BET method of 100 to 450 m 2 /g, and the average particle diameter of the silicate powder bonded to the metal ion is preferably 5 to 500 μm.
또한 제1 단계에서 실리케이트 분말과 혼합되는 저온 소성용 글래스 분말은 아몰포스 글래스 분말 및 저온 소성용 세라믹 분말 중 선택된 어느 하나 이상인 것이 바람직하다. 이때 저온 소성용 세라믹 분말은 Bi2O3, Sb2O5, B2O3 등이 포함된다. In addition, the glass powder for low-temperature firing mixed with the silicate powder in the first step is preferably at least one selected from amorphous glass powder and ceramic powder for low-temperature firing. At this time, ceramic powder for low-temperature firing includes Bi 2 O 3 , Sb 2 O 5 , B 2 O 3 , etc.
이때, 저온 소성용 글래스 분말은, 판상형, 파이버형, 다각형 중 어느 한 형태를 가질 수 있으며, 저온 소성용 글래스 분말은 600∼1200℃의 적정 소성 온도 범위를 가지는 것이 바람직하다. 또한, 저온 소성용 글래스 분말의 평균 입경은 0.5∼50㎛인 것이 바람직하다. 이때, 저온 소성용 글래스 분말은 금속 이온과 결합된 실리케이트 분말 대비 1중량부 내지 500중량부 혼합된다다.At this time, the glass powder for low-temperature firing may have any one of the shapes of a plate, fiber, or polygon, and the glass powder for low-temperature firing preferably has an appropriate firing temperature range of 600 to 1200°C. Additionally, the average particle diameter of the glass powder for low-temperature firing is preferably 0.5 to 50 μm. At this time, the glass powder for low-temperature firing is mixed in an amount of 1 to 500 parts by weight compared to the silicate powder combined with metal ions.
한편, 제2 단계에서 첨가되는 고분자 폴리머는, 폴리비닐알콜, 폴리비닐 아세테이트, 폴리에틸렌, 폴리비닐부티렌, 폴리프로필렌, 폴리염화비닐, 폴리 아크릴, 폴리 아크릴 아미드, 구아 검, 젤라틴 및 천연고무 중에서 선택된 하나 이상의 물질인 것이 바람직하며, 분산제는 습윤성 분산제인 것이 바람직하다. Meanwhile, the high molecular weight polymer added in the second step is selected from polyvinyl alcohol, polyvinyl acetate, polyethylene, polyvinylbutylene, polypropylene, polyvinyl chloride, polyacrylic, polyacrylamide, guar gum, gelatin, and natural rubber. It is preferable that it is one or more substances, and the dispersant is preferably a wettable dispersant.
실시예의 다른 일 태양으로서, 제2 단계에서 제조되는 세라믹 과립의 평균 입경은 50∼1000㎛인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법을 제공한다.As another aspect of the embodiment, a method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator is provided, wherein the average particle diameter of the ceramic granules manufactured in the second step is 50 to 1000 ㎛.
실시예의 다른 일 태양으로서, 제4단계의 소결은 저온 소성용 글래스 분말의 적정 소성 온도에 맞추어 600∼1200℃ 온도 범위에서 이루어지는 것이 바람직하다. As another aspect of the embodiment, the sintering in the fourth step is preferably performed in a temperature range of 600 to 1200° C. in accordance with the appropriate sintering temperature of the glass powder for low-temperature sintering.
제4단계의 소결 과정을 거치면서,저온 소성용 글래스 분말의 표면 용융 및 넥킹 현상에 의해 세라믹 코어쉘 구조가 형성된다. 코어(110)의 표면에 저온 소성용 글래스 분말에 의한 쉘(120)이 형성되어 고강도 세라믹 코어쉘 구조체를 이용해 제조되는 에어로졸 발생장치용 세라믹 히터는 고강도를 유지할 수 있다. Through the fourth step of sintering, a ceramic core-shell structure is formed by surface melting and necking of the glass powder for low-temperature firing. A ceramic heater for an aerosol generator manufactured using a high-strength ceramic core-shell structure in which a shell 120 is formed on the surface of the core 110 using glass powder for low-temperature firing can maintain high strength.
Claims (14)
혼합 분말에 고분자 폴리머 및 분산제를 첨가하고 세라믹 과립을 제조하는 제2 단계;
세라믹 과립을 가압 성형하는 제3 단계;및
성형체를 소결하는 제4 단계;를 포함하는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.A first step of mixing silicate powder combined with metal ions and glass powder for low-temperature firing;
A second step of adding high molecular weight polymer and dispersant to the mixed powder and producing ceramic granules;
A third step of pressure molding the ceramic granules; And
A method for manufacturing a high-strength ceramic core-shell structure for an aerosol generator, comprising a fourth step of sintering the molded body.
실리케이트 분말은 Mg, Al, Zr, Li, Ba, MgAl, Na 및 Ca 중에서 선택된 하나 이상의 금속 이온을 포함하는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to paragraph 1,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, wherein the silicate powder contains one or more metal ions selected from Mg, Al, Zr, Li, Ba, MgAl, Na, and Ca.
금속 이온과 결합된 실리케이트 분말은 BET법으로 측정된 비표면적이 20 내지 500m2/g인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to paragraph 2,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that the silicate powder combined with metal ions has a specific surface area of 20 to 500 m 2 /g as measured by the BET method.
금속 이온과 결합된 실리케이트 분말의 평균 입경은 5 ~ 500㎛인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to paragraph 2,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that the average particle diameter of the silicate powder combined with metal ions is 5 to 500㎛.
저온 소성용 글래스 분말은 아몰포스 글래스 분말 및 저온 소성용 세라믹 분말(Bi2O3, Sb2O5, B2O3와 같은 ) 중 선택된 어느 하나 이상인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to paragraph 1,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, wherein the glass powder for low-temperature firing is at least one selected from amorphous glass powder and ceramic powder for low-temperature firing (such as Bi2O3, Sb2O5, B2O3).
저온 소성용 글래스 분말은, 판상형, 파이버형, 다각형 중 어느 한 형태를 가지는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to clause 5,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, wherein the glass powder for low-temperature firing has any one of a plate-shaped, fiber-shaped, or polygonal shape.
저온 소성용 글래스 분말은 600∼1200℃의 적정 소성 온도 범위를 가지는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to clause 5,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that the glass powder for low-temperature firing has an appropriate firing temperature range of 600 to 1200°C.
저온 소성용 글래스 분말의 평균 입경은 0.5∼50㎛인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to clause 5,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that the average particle diameter of the glass powder for low-temperature firing is 0.5-50㎛.
저온 소성용 글래스 분말은 금속 이온과 결합된 실리케이트 분말 대비 1중량부 내지 500중량부 혼합되는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to paragraph 1,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that the glass powder for low-temperature firing is mixed with 1 to 500 parts by weight of the silicate powder combined with metal ions.
제2 단계에서 첨가되는 고분자 폴리머는, 폴리비닐알콜, 폴리비닐 아세테이트, 폴리에틸렌, 폴리비닐부티렌, 폴리프로필렌, 폴리염화비닐, 폴리 아크릴, 폴리 아크릴 아미드, 구아 검, 젤라틴 및 천연고무 중에서 선택된 하나 이상의 물질인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to paragraph 1,
The polymer added in the second step is one or more selected from polyvinyl alcohol, polyvinyl acetate, polyethylene, polyvinylbutylene, polypropylene, polyvinyl chloride, polyacrylic, polyacrylamide, guar gum, gelatin, and natural rubber. A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that the material is.
제2 단게에서 첨가되는 분산제는 습윤성 분산제인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to paragraph 1,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that the dispersant added in the second step is a wettable dispersant.
제2 단계에서 제조되는 세라믹 과립의 평균 입경은 50∼1000㎛인 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to paragraph 1,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that the average particle diameter of the ceramic granules manufactured in the second step is 50 to 1000㎛.
제4단계의 소결은 600∼1200℃ 온도 범위에서 이루어지는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.According to paragraph 1,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that the fourth step of sintering is performed in the temperature range of 600 to 1200 ° C.
제4단계의 소결 과정에서, 저온 소성용 글래스 분말의 표면 용융 및 넥킹 현상에 의해 세라믹 코어쉘 구조가 형성되는 것을 특징으로 하는 에어로졸 발생장치용 고강도 세라믹 코어쉘 구조체의 제조 방법.
According to paragraph 1,
A method of manufacturing a high-strength ceramic core-shell structure for an aerosol generator, characterized in that in the fourth step of sintering, a ceramic core-shell structure is formed by surface melting and necking phenomenon of glass powder for low-temperature firing.
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| KR1020220104006A KR20240025858A (en) | 2022-08-19 | 2022-08-19 | Preparing method of high strength ceramic core-shell structure for aerosol generator |
| PCT/KR2023/001414 WO2024038985A1 (en) | 2022-08-19 | 2023-01-31 | Method for producing high strength ceramic particles, and method for producing micro-porous spherical particles for aerosol generator using benard cell phenomenon |
| KR1020230108991A KR20240026114A (en) | 2022-08-19 | 2023-08-21 | Preparing method of high strength ceramic core-shell structure for aerosol generator |
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| KR102017920B1 (en) | 2011-12-08 | 2019-09-03 | 필립모리스 프로덕츠 에스.에이. | An aerosol generating device with a capillary interface |
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| KR102017920B1 (en) | 2011-12-08 | 2019-09-03 | 필립모리스 프로덕츠 에스.에이. | An aerosol generating device with a capillary interface |
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