CN112898812B - Far infrared quartz tube applied to electronic cigarette heater and preparation method thereof - Google Patents
Far infrared quartz tube applied to electronic cigarette heater and preparation method thereof Download PDFInfo
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- CN112898812B CN112898812B CN202110161812.4A CN202110161812A CN112898812B CN 112898812 B CN112898812 B CN 112898812B CN 202110161812 A CN202110161812 A CN 202110161812A CN 112898812 B CN112898812 B CN 112898812B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- 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
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
Abstract
The invention provides a far infrared quartz tube applied to an electronic cigarette heater, which consists of a quartz tube, a conductive film layer and a far infrared coating, wherein the conductive film layer is coated on the surface of the quartz tube, and the far infrared coating is coated on the surface of the conductive film layer; the conductive film layer is formed by conductive paste, and the conductive paste is prepared from the following components: 10-15 parts of carbon nano tubes, 5-10 parts of graphene, 60-70 parts of solvent A and 4-5 parts of polyethylene glycol; the far infrared coating is formed by far infrared paint which is prepared by the following components: 20-30 parts of silicone-acrylic emulsion, 4-5 parts of sodium pyrophosphate, 1-2 parts of a film forming additive, 10-15 parts of an activating agent, 12-16 parts of a filler, 5-6 parts of a binder, 35-40 parts of far infrared powder, 8-12 parts of tin oxide and 80-100 parts of a solvent B. The invention also provides a preparation method of the far infrared quartz tube. The far infrared quartz tube provided by the invention adopts a far infrared heating mode, and has higher electro-thermal radiation conversion rate and better heating performance.
Description
Technical Field
The invention relates to a quartz tube, in particular to a far infrared quartz tube applied to an electronic cigarette heater and a preparation method thereof.
Background
Smoking is detrimental to the health of the smoker, and the active ingredient in a cigarette is primarily nicotine, which is inhaled into the alveoli and rapidly absorbed by the smoker during smoking, along with suspended particles of nicotine produced upon combustion of the cigarette. Once nicotine is absorbed into the smoker's blood, the nicotine affects the nerve endings of the smoker's central nervous system, causing the smoker to relax and enjoy a drunken feeling similar to that produced by stimulants.
Electronic cigarettes are battery-powered devices that simulate smoking and typically use a heater that atomizes a liquid solution (e-liquid), which is typically a mixture of nicotine and various flavorants. Many electronic cigarettes are designed to simulate a smoking experience, such as smoking a cigarette or smoking a cigar. Conventional heating elements made of electrically resistive wire to generate heat and atomize e-liquid inside the atomizer typically have small heating surfaces and are difficult to generate large amounts of e-liquid vapor, with a modest heating effect.
Chinese patent application CN202011234671.6 discloses a "nano carbon fiber film rapid heating electronic cigarette heating pipe", comprising a hollow tube, an electric heating layer coated on the outer side wall of the hollow tube and electrically connected with an external circuit board for electrically heating tobacco leaves or smoke bombs placed in the hollow tube, an insulating thermal insulation layer coated on the outer side wall of the electric heating layer, an infrared reflection layer coated outside the insulating thermal insulation layer, and a fixing layer coated on the outer side wall of the infrared reflection layer; the hollow pipe is used for accommodating tobacco leaves or smoke bombs, and the electric heating layer is a carbon nanofiber membrane. The invention also has the problem of general heating effect.
Disclosure of Invention
The invention aims to solve the technical problem of providing a far infrared quartz tube applied to an electronic cigarette heater, which adopts a far infrared heating mode and has higher electric-thermal radiation conversion rate and better heating performance.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a far infrared quartz tube applied to an electronic cigarette heater is composed of a quartz tube, a conductive film layer and a far infrared coating, wherein the conductive film layer is coated on the surface of the quartz tube, and the far infrared coating is coated on the surface of the conductive film layer;
the conductive film layer is formed by conductive slurry, and the conductive slurry is prepared from the following components in parts by weight: 10-15 parts of carbon nano tubes, 5-10 parts of graphene, 60-70 parts of solvent A and 4-5 parts of polyethylene glycol;
the far infrared coating is formed by far infrared paint which is prepared from the following components in parts by weight: 20-30 parts of silicone-acrylic emulsion, 4-5 parts of sodium pyrophosphate, 1-2 parts of a film forming additive, 10-15 parts of an activating agent, 12-16 parts of a filler, 5-6 parts of a binder, 35-40 parts of far infrared powder, 8-12 parts of tin oxide and 80-100 parts of a solvent B.
Furthermore, the solvent A is formed by mixing water and N-methyl pyrrolidone.
Further, the film-forming aid is diethylene glycol monobutyl ether.
Further, the activator of the present invention is carbonyldiimidazole.
Further, the filler of the present invention is silica.
Further, the binder of the invention is polyvinylpyrrolidone.
Further, the far infrared powder is prepared by the following steps:
A1. adding carbon spheres into absolute ethyl alcohol, uniformly mixing to obtain a carbon sphere solution, adding zirconium acetate into the absolute ethyl alcohol, uniformly mixing to obtain a zirconium solution, mixing the carbon sphere solution and the zirconium solution, stirring for 8 hours, standing for 24 hours to obtain a mixed solution, drying the mixed solution in a drying oven at 100 ℃ for 8 hours to obtain a mixture, placing the mixture in a muffle furnace, heating to 600 ℃, and preserving heat for 3.5 hours to obtain zirconium dioxide hollow spheres;
A2. adding tetraethoxysilane into deionized water, uniformly mixing to obtain a silicon solution, adding gallium acetate into the deionized water, uniformly mixing to obtain a gallium solution, adding the zirconium dioxide hollow sphere obtained in the step A1 into the deionized water, uniformly mixing to obtain a hollow sphere solution, mixing the silicon solution, the gallium solution and the hollow sphere solution, stirring for 12 hours to obtain a mixed solution, placing the mixed solution in a drying oven, drying for 12 hours at 100 ℃ to obtain mixed powder, placing the mixed powder in a muffle furnace, heating to 700 ℃, and then preserving heat for 3.5 hours to obtain far infrared powder.
Further, in the step A1, the concentration of the carbon sphere solution is 0.025g/mL, the concentration of the zirconium solution is 1mol/L, and the volume ratio of the carbon sphere solution to the zirconium solution is 1: 1; in the step A2, the concentration of the silicon solution is 0.02g/mL, the concentration of the gallium solution is 0.005g/mL, the concentration of the hollow sphere solution is 0.05g/mL, and the volume ratio of the silicon solution to the gallium solution to the hollow sphere solution is 1:1: 1.
Further, the solvent B is formed by mixing water and N, N-dimethylformamide.
Another technical problem to be solved by the present invention is to provide a method for preparing the above far infrared quartz tube for an electronic cigarette heater.
In order to solve the technical problems, the technical scheme is as follows:
a preparation method of a far infrared quartz tube applied to an electronic cigarette heater comprises the following steps:
B1. weighing the components in parts by weight, adding the carbon nano tube, the graphene and the polyethylene glycol into the solvent A, and stirring at the speed of 3000 rpm for 40-60 minutes to obtain conductive slurry;
B2. adding sodium pyrophosphate, a film-forming aid, an activator, a binder and a half weight of solvent B into a dispersion machine, and stirring for 10-15 minutes at a speed of 500 revolutions per minute to obtain mixed slurry;
B3. adding the filler, the far infrared powder and the tin oxide into the mixed slurry obtained in the step B2, and stirring at the speed of 1200 rpm for 30-40 minutes to obtain slurry;
B4. adding the silicone-acrylic emulsion and the residual solvent B into the slurry obtained in the step B3, and stirring at the speed of 200 rpm for 40-50 minutes to obtain a far infrared coating;
B5. and B, coating the conductive slurry obtained in the step B1 on the surface of a quartz tube to form a conductive film layer, and coating the far infrared coating obtained in the step B4 on the surface of the conductive film layer to form a far infrared coating to obtain the far infrared quartz tube applied to the electronic cigarette heater.
Compared with the prior art, the invention has the following beneficial effects:
1) the heating principle of the invention is that the conductive coating is electrically connected with an external power supply and then electrified, and the far infrared coating generates far infrared radiation after being electrified so as to heat the electronic cigarette liquid, so that the heating speed is high, and the heating uniformity is good.
2) The far infrared radiation of the far infrared coating used by the invention is mainly generated by far infrared powder, the far infrared powder is a zirconium dioxide hollow sphere prepared by a template-assisted hydrothermal method of carbon spheres and zirconium acetate, and then is a zirconium dioxide-silicon dioxide core-shell structure compound doped with gallium oxide prepared by a hydrothermal method of gallium acetate and tetraethoxysilane, energy bands of gallium oxide, zirconium dioxide and silicon dioxide are matched with each other to promote, and high far infrared emissivity and electrothermal conversion efficiency can be generated, so that the heating effect is improved; in addition, the core-shell structure of the far infrared powder can also improve the overall tensile strength of the far infrared quartz tube.
3) The binder polyvinylpyrrolidone in the far infrared coating used by the invention can improve the bonding strength between the far infrared coating and the conductive film layer, and can further improve the overall tensile strength of the far infrared quartz tube.
Detailed Description
The present invention will be described in detail with reference to specific embodiments, and the exemplary embodiments and descriptions thereof herein are provided to explain the present invention but not to limit the present invention.
Example 1
The far infrared quartz tube applied to the electronic cigarette heater consists of a quartz tube, a conductive film layer and a far infrared coating, wherein the conductive film layer is coated on the surface of the quartz tube, and the far infrared coating is coated on the surface of the conductive film layer; the conductive film layer is formed by conductive slurry, and the conductive slurry is prepared from the following components in parts by weight: 14 parts of carbon nano tube, 8 parts of graphene, 65 parts of solvent A formed by mixing water and N-methyl pyrrolidone, and 4.5 parts of polyethylene glycol; the far infrared coating is formed by far infrared paint which is prepared from the following components in parts by weight: 25 parts of silicone-acrylic emulsion, 4.5 parts of sodium pyrophosphate, 1.5 parts of diethylene glycol monobutyl ether, 12 parts of carbonyl diimidazole, 15 parts of silicon dioxide, 5.5 parts of polyvinylpyrrolidone, 38 parts of far infrared powder, 10 parts of tin oxide, and 90 parts of solvent B formed by mixing water and N, N-dimethylformamide.
Wherein, the far infrared powder is prepared by the following steps:
A1. adding carbon spheres into absolute ethyl alcohol, uniformly mixing to obtain a carbon sphere solution with the concentration of 0.025g/mL, adding 1mol/L zirconium acetate into the absolute ethyl alcohol, uniformly mixing to obtain a zirconium solution, mixing the carbon sphere solution and the zirconium solution in a volume ratio of 1:1, stirring for 8 hours, standing for 24 hours to obtain a mixed solution, drying the mixed solution in a drying oven at 100 ℃ for 8 hours to obtain a mixture, placing the mixture in a muffle furnace, heating to 600 ℃, and preserving heat for 3.5 hours to obtain a zirconium dioxide hollow sphere;
A2. adding tetraethoxysilane into deionized water, uniformly mixing to obtain a silicon solution with the concentration of 0.02g/mL, adding gallium acetate into the deionized water, uniformly mixing to obtain a gallium solution with the concentration of 0.005g/mL, adding the zirconium dioxide hollow sphere obtained in the step A1 into the deionized water, uniformly mixing to obtain a hollow sphere solution with the concentration of 0.05g/mL, mixing the silicon solution, the gallium solution and the hollow sphere solution in a volume ratio of 1:1:1, stirring for 12 hours to obtain a mixed solution, placing the mixed solution into a drying oven, drying for 12 hours at the temperature of 100 ℃ to obtain mixed powder, placing the mixed powder into a muffle furnace, heating to 700 ℃, and preserving the temperature for 3.5 hours to obtain far infrared powder.
The preparation method of the far infrared quartz tube applied to the electronic cigarette heater comprises the following steps:
B1. weighing the components in parts by weight, adding the carbon nano tube, the graphene and the polyethylene glycol into the solvent A, and stirring for 50 minutes at a speed of 3000 rpm to obtain conductive slurry;
B2. adding sodium pyrophosphate, diethylene glycol monobutyl ether, carbonyl diimidazole, polyvinylpyrrolidone and half weight of solvent B into a dispersion machine, and stirring at the speed of 500 revolutions per minute for 12 minutes to obtain mixed slurry;
B3. adding silicon dioxide, far infrared powder and tin oxide into the mixed slurry obtained in the step B2, and stirring at the speed of 1200 rpm for 35 minutes to obtain slurry;
B4. adding the silicone-acrylic emulsion and the residual solvent B into the slurry obtained in the step B3, and stirring for 45 minutes at the speed of 200 rpm to obtain a far infrared coating;
B5. and B, coating the conductive slurry obtained in the step B1 on the surface of a quartz tube to form a conductive film layer, and coating the far infrared coating obtained in the step B4 on the surface of the conductive film layer to form a far infrared coating to obtain the far infrared quartz tube applied to the electronic cigarette heater.
Example 2
The far infrared quartz tube applied to the electronic cigarette heater consists of a quartz tube, a conductive film layer and a far infrared coating, wherein the conductive film layer is coated on the surface of the quartz tube, and the far infrared coating is coated on the surface of the conductive film layer; the conductive film layer is formed by conductive slurry, and the conductive slurry is prepared from the following components in parts by weight: 10 parts of carbon nano tube, 10 parts of graphene, 60 parts of solvent A formed by mixing water and N-methyl pyrrolidone, and 5 parts of polyethylene glycol; the far infrared coating is formed by far infrared paint which is prepared from the following components in parts by weight: 30 parts of silicone-acrylic emulsion, 4 parts of sodium pyrophosphate, 1.2 parts of diethylene glycol monobutyl ether, 13 parts of carbonyl diimidazole, 16 parts of silicon dioxide, 5 parts of polyvinylpyrrolidone, 36 parts of far infrared powder, 9 parts of tin oxide and 85 parts of solvent B formed by mixing water and N, N-dimethylformamide.
Wherein, the preparation steps of the far infrared powder are the same as those of the embodiment 1.
The preparation method of the far infrared quartz tube applied to the electronic cigarette heater comprises the following steps:
B1. weighing the components in parts by weight, adding the carbon nano tube, the graphene and the polyethylene glycol into the solvent A, and stirring for 40 minutes at a speed of 3000 rpm to obtain conductive slurry;
B2. adding sodium pyrophosphate, diethylene glycol monobutyl ether, carbonyl diimidazole, polyvinylpyrrolidone and half weight of solvent B into a dispersion machine, and stirring at the speed of 500 revolutions per minute for 15 minutes to obtain mixed slurry;
B3. adding silicon dioxide, far infrared powder and tin oxide into the mixed slurry obtained in the step B2, and stirring for 30 minutes at 1200 rpm to obtain slurry;
B4. adding the silicone-acrylic emulsion and the residual solvent B into the slurry obtained in the step B3, and stirring for 50 minutes at the speed of 200 rpm to obtain a far infrared coating;
B5. and B, coating the conductive slurry obtained in the step B1 on the surface of a quartz tube to form a conductive film layer, and coating the far infrared coating obtained in the step B4 on the surface of the conductive film layer to form a far infrared coating to obtain the far infrared quartz tube applied to the electronic cigarette heater.
Example 3
The far infrared quartz tube applied to the electronic cigarette heater consists of a quartz tube, a conductive film layer and a far infrared coating, wherein the conductive film layer is coated on the surface of the quartz tube, and the far infrared coating is coated on the surface of the conductive film layer; the conductive film layer is formed by conductive slurry, and the conductive slurry is prepared from the following components in parts by weight: 11 parts of carbon nano tube, 7 parts of graphene, 70 parts of solvent A formed by mixing water and N-methyl pyrrolidone, and 4 parts of polyethylene glycol; the far infrared coating is formed by far infrared paint which is prepared from the following components in parts by weight: 28 parts of silicone-acrylic emulsion, 4.8 parts of sodium pyrophosphate, 2 parts of diethylene glycol monobutyl ether, 10 parts of carbonyl diimidazole, 12 parts of silicon dioxide, 6 parts of polyvinylpyrrolidone, 40 parts of far infrared powder, 8 parts of tin oxide and 80 parts of solvent B formed by mixing water and N, N-dimethylformamide.
Wherein, the preparation steps of the far infrared powder are the same as those of the embodiment 1.
The preparation method of the far infrared quartz tube applied to the electronic cigarette heater comprises the following steps:
B1. weighing the components in parts by weight, adding the carbon nano tube, the graphene and the polyethylene glycol into the solvent A, and stirring at the speed of 3000 rpm for 60 minutes to obtain conductive slurry;
B2. adding sodium pyrophosphate, diethylene glycol monobutyl ether, carbonyl diimidazole, polyvinylpyrrolidone and half weight of solvent B into a dispersion machine, and stirring at the speed of 500 revolutions per minute for 10 minutes to obtain mixed slurry;
B3. adding silicon dioxide, far infrared powder and tin oxide into the mixed slurry obtained in the step B2, and stirring for 40 minutes at the speed of 1200 rpm to obtain slurry;
B4. adding the silicone-acrylic emulsion and the residual solvent B into the slurry obtained in the step B3, and stirring for 40 minutes at the speed of 200 rpm to obtain a far infrared coating;
B5. and B, coating the conductive slurry obtained in the step B1 on the surface of a quartz tube to form a conductive film layer, and coating the far infrared coating obtained in the step B4 on the surface of the conductive film layer to form a far infrared coating to obtain the far infrared quartz tube applied to the electronic cigarette heater.
Example 4
The far infrared quartz tube applied to the electronic cigarette heater consists of a quartz tube, a conductive film layer and a far infrared coating, wherein the conductive film layer is coated on the surface of the quartz tube, and the far infrared coating is coated on the surface of the conductive film layer; the conductive film layer is formed by conductive slurry, and the conductive slurry is prepared from the following components in parts by weight: 15 parts of carbon nano tube, 5 parts of graphene, 66 parts of solvent A formed by mixing water and N-methyl pyrrolidone, and 5 parts of polyethylene glycol; the far infrared coating is formed by far infrared paint which is prepared from the following components in parts by weight: 20 parts of silicone-acrylic emulsion, 5 parts of sodium pyrophosphate, 1 part of diethylene glycol monobutyl ether, 15 parts of carbonyl diimidazole, 13 parts of silicon dioxide, 5.1 parts of polyvinylpyrrolidone, 35 parts of far infrared powder, 12 parts of tin oxide and 100 parts of solvent B formed by mixing water and N, N-dimethylformamide.
Wherein, the preparation steps of the far infrared powder are the same as those of the embodiment 1.
The preparation method of the far infrared quartz tube applied to the electronic cigarette heater comprises the following steps:
B1. weighing the components in parts by weight, adding the carbon nano tube, the graphene and the polyethylene glycol into the solvent A, and stirring for 45 minutes at a speed of 3000 rpm to obtain conductive slurry;
B2. adding sodium pyrophosphate, diethylene glycol monobutyl ether, carbonyl diimidazole, polyvinylpyrrolidone and half weight of solvent B into a dispersion machine, and stirring at the speed of 500 revolutions per minute for 11 minutes to obtain mixed slurry;
B3. adding silicon dioxide, far infrared powder and tin oxide into the mixed slurry obtained in the step B2, and stirring at the speed of 1200 rpm for 36 minutes to obtain slurry;
B4. adding the silicone-acrylic emulsion and the residual solvent B into the slurry obtained in the step B3, and stirring for 48 minutes at the speed of 200 rpm to obtain a far infrared coating;
B5. and B, coating the conductive slurry obtained in the step B1 on the surface of a quartz tube to form a conductive film layer, and coating the far infrared coating obtained in the step B4 on the surface of the conductive film layer to form a far infrared coating to obtain the far infrared quartz tube applied to the electronic cigarette heater.
Reference example 1:
the difference from example 1 is: in the step of preparing far infrared powder a2, gallium solution is not added.
Reference example 2:
the difference from example 1 is: the preparation step of the far infrared powder is changed to be formed by mixing silicon dioxide, zirconium dioxide and gallium oxide, and the proportion of the silicon dioxide, the zirconium dioxide and the gallium oxide is the same as that of the far infrared powder in the embodiment 1.
Reference example 3:
the difference from example 1 is: the components of the far infrared coating lack polyvinylpyrrolidone.
Comparative example 1: example 1 of chinese patent application No. CN 202011234671.6.
Comparative example 2: a common quartz tube.
The first test example: electrothermal radiation conversion rate test
The electrothermal radiation conversion rates of examples 1-4, reference examples 1-3 and comparative example 1 were respectively determined by reference to GB/T7287-:
| electrothermal radiation conversion rate (%) | |
| Example 1 | 92 |
| Example 2 | 90 |
| Example 3 | 89 |
| Example 4 | 91 |
| Reference example 1 | 82 |
| Reference example 2 | 83 |
| Reference example 3 | 92 |
| Comparative example 1 | 69 |
TABLE 1
As can be seen from Table 1, the electrothermal radiation conversion rates of examples 1 to 4 of the present invention are all higher than those of comparative example 1. Compared with the example 1, the electric heating radiation conversion rate of the reference examples 1 and 2 is reduced compared with the example 1, which shows that the gallium oxide in the far infrared powder and the core-shell structure used in the invention can improve the electric heating radiation conversion rate of the far infrared quartz tube.
Test example two: far infrared emissivity test
The normal far infrared emissivity of examples 1-4, reference examples 1-3 and comparative example 1 in the wavelength range of 4-16 μm is respectively determined by reference to GB/T7287-:
TABLE 2
As can be seen from Table 2, the normal far infrared emissivity of examples 1-4 of the present invention is higher than that of comparative example 1. Compared with the example 1, the reference examples 1 and 2 have lower normal far infrared emissivity compared with the example 1, which shows that the gallium oxide in the far infrared powder and the core-shell structure used in the invention can improve the far infrared emissivity of the far infrared quartz tube.
Test example three: tensile Strength test
The tensile strengths of examples 1 to 4, reference examples 1 to 3 and comparative example 2 were measured using a universal material testing machine with reference to GB/T8489-:
| tensile Strength (MPa) | |
| Example 1 | 63.28 |
| Example 2 | 63.09 |
| Example 3 | 63.22 |
| Example 4 | 63.14 |
| Reference example 1 | 63.27 |
| Reference example 2 | 58.76 |
| Reference example 3 | 56.85 |
| Comparative example 2 | 54.31 |
TABLE 3
As can be seen from Table 3, the tensile strengths of inventive examples 1-4 are all higher than comparative example 2. The comparison examples 1-3 are different from the comparison example 1 in some components or preparation steps, and the comparison examples 1 are different in tensile strength of the comparison examples 2 and 3, which shows that the core-shell structure of the far infrared powder and polyvinylpyrrolidone used in the invention can improve the tensile strength of the far infrared quartz tube.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a be applied to far infrared quartz capsule of electron cigarette heater which characterized in that: the far infrared quartz tube consists of a quartz tube, a conductive film layer and a far infrared coating, wherein the conductive film layer is coated on the surface of the quartz tube, and the far infrared coating is coated on the surface of the conductive film layer;
the conductive film layer is formed by conductive slurry, and the conductive slurry is prepared from the following components in parts by weight: 10-15 parts of carbon nano tubes, 5-10 parts of graphene, 60-70 parts of solvent A and 4-5 parts of polyethylene glycol;
the far infrared coating is formed by far infrared paint which is prepared from the following components in parts by weight: 20-30 parts of silicone-acrylic emulsion, 4-5 parts of sodium pyrophosphate, 1-2 parts of a film forming additive, 10-15 parts of an activating agent, 12-16 parts of a filler, 5-6 parts of a binder, 35-40 parts of far infrared powder, 8-12 parts of tin oxide and 80-100 parts of a solvent B;
the far infrared powder is prepared by the following steps:
A1. adding carbon spheres into absolute ethyl alcohol, uniformly mixing to obtain a carbon sphere solution, adding zirconium acetate into the absolute ethyl alcohol, uniformly mixing to obtain a zirconium solution, mixing the carbon sphere solution and the zirconium solution, stirring for 8 hours, standing for 24 hours to obtain a mixed solution, drying the mixed solution in a drying oven at 100 ℃ for 8 hours to obtain a mixture, placing the mixture in a muffle furnace, heating to 600 ℃, and preserving heat for 3.5 hours to obtain zirconium dioxide hollow spheres;
A2. adding tetraethoxysilane into deionized water, uniformly mixing to obtain a silicon solution, adding gallium acetate into the deionized water, uniformly mixing to obtain a gallium solution, adding the zirconium dioxide hollow sphere obtained in the step A1 into the deionized water, uniformly mixing to obtain a hollow sphere solution, mixing the silicon solution, the gallium solution and the hollow sphere solution, stirring for 12 hours to obtain a mixed solution, placing the mixed solution in a drying oven, drying for 12 hours at 100 ℃ to obtain mixed powder, placing the mixed powder in a muffle furnace, heating to 700 ℃, and then preserving heat for 3.5 hours to obtain far infrared powder.
2. The far infrared quartz tube applied to the electronic cigarette heater according to claim 1, characterized in that: the solvent A is formed by mixing water and N-methyl pyrrolidone.
3. The far infrared quartz tube applied to the electronic cigarette heater according to claim 1, characterized in that: the film-forming assistant is diethylene glycol monobutyl ether.
4. The far infrared quartz tube applied to the electronic cigarette heater according to claim 1, characterized in that: the activator is carbonyldiimidazole.
5. The far infrared quartz tube applied to the electronic cigarette heater according to claim 1, characterized in that: the filler is silica.
6. The far infrared quartz tube applied to the electronic cigarette heater according to claim 1, characterized in that: the binder is polyvinylpyrrolidone.
7. The far infrared quartz tube applied to the electronic cigarette heater according to claim 1, characterized in that: in the step A1, the concentration of the carbon sphere solution is 0.025g/mL, the concentration of the zirconium solution is 1mol/L, and the volume ratio of the carbon sphere solution to the zirconium solution is 1: 1; in the step A2, the concentration of the silicon solution is 0.02g/mL, the concentration of the gallium solution is 0.005g/mL, the concentration of the hollow sphere solution is 0.05g/mL, and the volume ratio of the silicon solution to the gallium solution to the hollow sphere solution is 1:1: 1.
8. The far infrared quartz tube applied to the electronic cigarette heater according to claim 1, characterized in that: the solvent B is formed by mixing water and N, N-dimethylformamide.
9. The preparation method of the far infrared quartz tube applied to the electronic cigarette heater according to any one of claims 1 to 8, characterized by comprising the following steps: the method comprises the following steps:
B1. weighing the components in parts by weight, adding the carbon nano tube, the graphene and the polyethylene glycol into the solvent A, and stirring at the speed of 3000 rpm for 40-60 minutes to obtain conductive slurry;
B2. adding sodium pyrophosphate, a film-forming aid, an activator, a binder and a half weight of solvent B into a dispersion machine, and stirring for 10-15 minutes at a speed of 500 revolutions per minute to obtain mixed slurry;
B3. adding the filler, the far infrared powder and the tin oxide into the mixed slurry obtained in the step B2, and stirring at the speed of 1200 rpm for 30-40 minutes to obtain slurry;
B4. adding the silicone-acrylic emulsion and the residual solvent B into the slurry obtained in the step B3, and stirring at the speed of 200 rpm for 40-50 minutes to obtain a far infrared coating;
B5. and B, coating the conductive slurry obtained in the step B1 on the surface of a quartz tube to form a conductive film layer, and coating the far infrared coating obtained in the step B4 on the surface of the conductive film layer to form a far infrared coating to obtain the far infrared quartz tube applied to the electronic cigarette heater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110161812.4A CN112898812B (en) | 2021-02-05 | 2021-02-05 | Far infrared quartz tube applied to electronic cigarette heater and preparation method thereof |
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| CN202110161812.4A CN112898812B (en) | 2021-02-05 | 2021-02-05 | Far infrared quartz tube applied to electronic cigarette heater and preparation method thereof |
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| CN112898812B true CN112898812B (en) | 2021-09-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101414560B1 (en) * | 2013-01-09 | 2014-07-04 | 한화케미칼 주식회사 | method for producing conductive film |
| CN106147297B (en) * | 2015-04-01 | 2018-10-19 | 佛山市顺德区美的电热电器制造有限公司 | Far ultrared paint and its preparation method and application |
| CN105669158A (en) * | 2016-01-23 | 2016-06-15 | 王秋芹 | Graphene far-infrared heating coating and preparation method thereof |
| CN107317033A (en) * | 2016-04-27 | 2017-11-03 | 深圳格林德能源有限公司 | A kind of graphene/carbon nano-tube composite conducting slurry and preparation method thereof |
| CN108003701B (en) * | 2017-12-16 | 2020-12-22 | 深圳埃法智能科技有限公司 | Far infrared heat conduction slurry and preparation method and application thereof |
| CN112205682A (en) * | 2020-11-07 | 2021-01-12 | 松湖神健科技(东莞)有限公司 | Carbon nanofiber membrane rapid heating electronic cigarette heating pipe |
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