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Preparation method of silicate-based microporous drug delivery atomizing core and heating component thereof

A technology for heating components and atomizing cores, applied in ceramic products, manufacturing tools, other household appliances, etc., can solve the problems of brittleness, easy oxidation, grain growth, etc., to achieve high strength, accurate size requirements, good structure The effect of strength and porosity

Inactive Publication Date: 2020-05-08
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a novel silicate-based microporous drug delivery atomization core and its heating component preparation method. The atomizer prepared by this method has achieved satisfactory results in improving the atomization efficiency , in view of the problems that the currently commercially available atomization heating components are easy to oxidize at high temperature, the grain grows, and becomes brittle, etc., the present invention proposes to use silicate-based materials instead of traditional ceramic materials to make atomization cores The characteristics of in-situ solidification into high-strength materials when exposed to water can realize the low-temperature preparation of microporous drug delivery atomizing cores and heating components, which improves the yield of atomizing cores and heating components, and can be tailored according to different needs Create different shapes of electronic drug delivery atomizing cores, which improves the utilization rate of materials and reduces processing costs

Method used

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  • Preparation method of silicate-based microporous drug delivery atomizing core and heating component thereof
  • Preparation method of silicate-based microporous drug delivery atomizing core and heating component thereof
  • Preparation method of silicate-based microporous drug delivery atomizing core and heating component thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0038] A novel silicate-based microporous drug delivery atomizing core and its heating element were prepared. Prepare as follows:

[0039] (1) Mix 10 μm silicate clinker powder and pore-forming agent in a planetary ball mill, the ball-to-material ratio is 5:1, the diameter of the corundum ball is 1-5mm, and the ball milling speed is 200r / min, The ball milling time is 20 minutes, and the mixture after ball milling is taken out for later use, which is recorded as material a. Then mix water and material a according to the ratio of 0.5:1 and use it as the raw material of the atomizing core matrix for later use, which is recorded as material b; the silicate clinker contains 20wt.% dicalcium silicate and 7wt.% aluminate Tricalcium, 10wt.% tetracalcium aluminoferrate and 63wt.% tricalcium silicate, the pore-forming agent is ammonium bicarbonate, accounting for 2wt.% of the total mass of a;

[0040] (2) After assembling the mold and the heating element, spray the release agent. In t...

Embodiment example 2

[0045] A novel silicate-based microporous drug delivery atomizing core and its heating element were prepared. Prepare as follows:

[0046](1) Mix 8 μm silicate clinker powder and pore-forming agent in a planetary ball mill, the ball-to-material ratio is 3:1, the diameter of the corundum ball is 1-5mm, and the ball milling speed is 150r / min, The ball milling time is 15 minutes, and the mixture after ball milling is taken out for later use, which is recorded as material a. Then mix water and material a according to the ratio of 0.6:1 and use it as the raw material of the atomizing core matrix for later use, which is recorded as material b; the silicate clinker contains 22wt.% dicalcium silicate and 8wt.% aluminate Tricalcium, 15wt.% tetracalcium aluminoferrite and 55wt.% tricalcium silicate, the pore-forming agent is sodium bicarbonate accounting for 1wt.% of the total mass of a;

[0047] (2) After assembling the mold and the heating element, spray the release agent. The heati...

Embodiment example 3

[0052] A new type of silicate-based microporous drug delivery atomization core and a heating element for atomization are prepared. Prepare as follows:

[0053] (1) Modeling: Use 3D drawing software to draw and model, and convert it in the slicing software dedicated to the 3D printer, and input the program into the 3D printer;

[0054] (2) Ingredients: Mix 2μm silicate clinker powder and pore-forming agent in a planetary ball mill, the ball-to-material ratio is 5:1, the diameter of the corundum ball is 1-5mm, and the ball milling speed is 250r / min, the ball milling time is 25min, take out the mixed material after ball milling, and record it as material a. Then mix water and material a according to the ratio of 0.4:1 and use it as the raw material of the atomizing core matrix for later use, which is recorded as material b; the silicate clinker contains 25wt.% dicalcium silicate and 5wt.% aluminate Tricalcium, 10wt.% tetracalcium aluminoferrite and 60wt.% tricalcium silicate, ...

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Abstract

The invention provides a silicate-based microporous drug-delivery atomizing core and a preparation method for a heating assembly of the atomizing core, and belongs to the field of microporous inorganic composite materials. A mixture of a silicate-based clinker, a pore-forming agent and water is used as a base material for preparing the drug-delivery atomizing core, firearmor and other alloy materials are used as the resistance heating assembly, and the silicate-based microporous drug-delivery atomizing core and preparation of the heating assembly of the atomizing core can be implemented by using various forming technologies. The microporous silicate base material is used as an atomizing core base body, the high-temperature material sintering process after green body formation can be omitted, the problem can be avoided that the heating assembly is oxidated, embrittled and the like in the high-temperature sintering process, the production cost is greatly saved, and the preparation technology of the atomizing core is simplified. The atomizing core produced by using the method has the advantages of being precise in size, high in formation speed and the like.

Description

technical field [0001] The invention belongs to the field of preparing microporous inorganic composite materials, and provides a method for preparing a silicate-based microporous drug delivery atomizing core and a heating component thereof through various molding methods including injection molding, casting molding and 3D printing. Background technique [0002] At present, most of the heating elements for atomization on the market are made of alloy materials such as nickel-chromium-iron-manganese, and the atomization cores are mostly made of ceramic materials such as alumina and aluminum nitride. >900°C) for sintering, which will inevitably cause problems such as embrittlement and oxidation of heating components. How to realize the low-temperature sintering integration to prepare the atomizing core and its heating components is the current research difficulty. [0003] As an inorganic material with a long history of use, silicate-based materials have many advantages such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B38/00C04B38/06B33Y70/10B33Y10/00B28B17/02B28B1/24B28B1/00
CPCB28B1/001B28B1/24B28B17/026B33Y10/00B33Y70/00C04B28/04C04B38/0025C04B38/0645
Inventor 杨芳林圣增郭志猛秦乾孙海霞隋延力邵艳茹路新陈存广李沛陆天行王振
Owner UNIV OF SCI & TECH BEIJING
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