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Heating slurry free of harmful metal and preparation and printing film-forming methods thereof

A slurry and metal technology, applied in the field of heating slurry, can solve problems such as affecting the user's taste, and achieve the effects of good thixotropic performance, good fluidity and good dispersion uniformity.

Active Publication Date: 2022-06-03
JIANGSU HOYI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical properties of the metal heating element are lively and cannot be used in corrosive environments such as acid or alkali. At the same time, if the metal heating element is dry-burned (conducting electricity to the heating element when there is insufficient smoke liquid or no smoke liquid), it will produce peculiar smell , affecting the taste of the user

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of heat-generating slurry without harmful metal, its components include functional phase 70%, glass powder 15%, ethyl cellulose 2%, butyl carbitol 10%, citric acid triamine 2% by mass percentage %, polyamide wax 1%, the functional phase includes 70% tungsten powder and 30% molybdenum nitride powder, the particle size of the functional phase powder is 1 μm, the composition of the glass powder includes 25% silicon oxide, 40% alumina, 20% of bismuth oxide, 9% of calcium oxide, 6% of zinc oxide, and the particle size of the glass powder is 1.0 μm.

[0029] A preparation method on a heating slurry without harmful metals, comprising the following steps:

[0030] (1) Preparation of functional phase: Weigh metal powder and semiconductor material powder, place them in a ball milling jar and perform ball milling with a ball mill, add absolute ethanol during ball milling, the ball milling speed is 500r / min, and the ball milling time is 4h;

[0031] (2) Preparation of glass...

Embodiment 2

[0036] The difference between Example 2 and Example 1 is that, in terms of mass percentage, the components of the glass powder include 50% silicon oxide, 15% aluminum oxide, 30% bismuth oxide, 2% calcium oxide, and 3% zinc oxide. The particle size was 1.0 μm.

Embodiment 3

[0038] The difference between Example 3 and Example 1 is that, in terms of mass percentage, the components of the glass powder include 35% silicon oxide, 30% aluminum oxide, 25% bismuth oxide, 5% calcium oxide, 5% zinc oxide, and 5% of the glass powder. The particle size was 2.0 μm.

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PUM

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Abstract

The invention discloses a heating paste free of harmful metals, which comprises the following components in percentage by mass: 70-85% of functional phase, 3-15% of glass powder, 0.5-2% of resin, 10-20% of organic solvent and 1-5% of assistant, the functional phase comprises 70-90% of metal powder and 10-30% of semiconductor powder, the metal powder comprises one or more of tungsten, molybdenum or tantalum, and the semiconductor powder comprises one or more of tungsten, molybdenum or tantalum. The purity of the metal powder is not lower than 99.5%, the semiconductor is molybdenum nitride or titanium nitride, and the particle size of the functional phase powder is 1.0-2.5 microns. The invention also discloses a preparation method and a printing film-forming method of the heating slurry containing no harmful metal. The slurry is prepared by taking mixed powder of metal tungsten, molybdenum or tantalum and semiconductor molybdenum nitride or titanium nitride as a functional phase and bismuth aluminosilicate glass powder as a binding phase, the functional phase and the glass powder have better dispersity, the binding force between the functional phase and the glass powder is stronger when the slurry is used as an electrode, and the slurry does not contain harmful metal components such as chromium, nickel, arsenic, lead, cadmium, antimony, mercury and the like.

Description

technical field [0001] The invention relates to the technical field of heat-generating paste, in particular to a heat-generating paste that does not contain harmful metals and a method for its preparation, printing and film formation. Background technique [0002] In electronic cigarettes, an atomizing core is usually used to atomize the e-liquid. The heating elements used in the atomizer mainly include metal heating elements and ceramic heating elements. The metal heating elements are further divided into metal heating sheets or heating wires. The materials include Iron-chromium-aluminum, stainless steel, nickel-chromium alloy, pure nickel, etc., are the simplest and most common heat sources. They have the advantages of fast heating speed, long life and low price, so they are widely used. However, the metal heating element has active chemical properties and cannot be used in a corrosive environment such as acid or alkali. At the same time, if the metal heating element is dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/81A24F40/46
CPCC04B41/81C04B41/5133A24F40/46C04B41/5062C04B41/5022C04B41/4892C04B41/4803C04B41/48C04B41/4505C04B41/0072
Inventor 杨爱民司留启白宝柱
Owner JIANGSU HOYI TECH
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