CN109793284A - It is a kind of for heating the infrared electric heating material and preparation method thereof for the tobacco product that do not burn - Google Patents
It is a kind of for heating the infrared electric heating material and preparation method thereof for the tobacco product that do not burn Download PDFInfo
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Abstract
The invention discloses a kind of for heating the infrared electric heating material and preparation method thereof for the tobacco product that do not burn, which is ABO with metallic character3Type perovskite material, infrared emittance is high, resistance value is low.Infrared electric heating material of the invention is applied in the mating smoking set for heating the cigarette products that do not burn, excite the external infrared radiation of infrared electric heating material, and then achieve the purpose that radiant heating, heat is provided to release cigarette material, target temperature can be risen within a short period of time, and is released cigarette material and be heated evenly, be carbonized completely.
Description
Technical field
The invention belongs to new tobacco products technical fields, more particularly to one kind is for heating the tobacco product that do not burn
Infrared electric heating material and preparation method thereof.
Background technique
A large number of studies show that if cigarette temperature is reduced to 500 DEG C hereinafter, i.e. so-called " tobacco is heated but non-ignitable
Burn ", a variety of harmful components can be greatly lowered in flue gas, and nicotine and flavor component are relatively small by being influenced, certain
A little flavor components increase due to possibly even reduction because being pyrolyzed.Based on this thinking, the new concept cigarette of " tobacco heats but do not burn "
Straw-made articles comes into being.The pipe tobacco of the tobacco product is only heated but does not burn, and considerably reduces harmful in flue gas
The release studied point.The technical definition of above-mentioned cigarette is " release that cigarette material be heated but incombustible cigarette " (Cigarette
That primarily heat rather than burn tobacco, abbreviation Heat rather than burn
tobacco)。
The implementation for heating the tobacco product that do not burn is usually to be physically isolated tobacco and heat source, therefore, core
The heart first is that heat source is designed and developed.Heating is not burnt, and (representative products Fei Mo is international based on electric heating type heat source for tobacco product
The GLO of iQOS and British American Tobacco).But presently commercially available electric heating smoking set is generally existing non-uniform to the heating for releasing cigarette material to ask
It inscribes, and release cigarette material after to remain on electric heating assembly due to coking, carbonization, bonding etc., needs mating special
Tool heating component is cleaned, influence consumer to the experience sense of product.Electric infrared radiation heating, which refers to, passes through electric energy
Excitation material emits 2.5~25 μm of electromagnetic wave, and heating object absorbs the infrared-ray for reaching surface, is transformed into thermal energy again
Object is heated.There are a series of technical advantages using FAR INFRARED HEATING, as the thermal efficiency is high, penetrability is strong, non-contact
Formula heating, heated material are heated evenly, since most of organic compounds have strong absorption characteristic to far infrared,
New energy-provision way can be provided for smoking article, gradually cause the attention of researcher.The key of Infrared Radiation Heating Technology is
The selection of high infrared radiance material, and infrared electric heating membrane material always is the heat of high infrared radiance investigation of materials for many years
One of point, such material is high with thermal power densities, electric conversion efficiency is high, heating object is heated evenly, element uses the longevity
Order the features such as long.
Publication No. CN105916222A, CN107182140A, CN108481852A, CN104797016A,
The Chinese patent of CN105282882A discloses a variety of infrared electrothermal film heater elements, usually first synthesizes high infrared radiation powder
Body material, then mixed with thermally conductive slurry, using modes such as spraying, solid-phase sintering and physical bonds, completed on base material
Conductive layer is compound with infra-red radiation layer.By adjusting the component proportion of infrared electric heating membrane material, can electric conductivity to film with
Infrared emissivity can be carried out improvement.The major defect of existing infrared electric heating membrane technology is: conductive slurries and inorganic substrates material knot
Resultant force is not strong, it is easy to fall off, cause that Electric radiant Heating Film stability in use is poor, thermal power densities are low.Though and organic hot pressing can be improved two
The bonding force of person, but be limited to substrate and be not useable for hot environment using temperature, and preparation process is cumbersome.One kind is found as a result,
Material, having both good electric conductivity and infra-red radiation ability is to have very much practical application value.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of for heating the red of tobacco product of not burning
Outer thermo electric material and preparation method thereof makes it have both the feature that resistance value is low, infrared emittance is high.
The present invention is to realize that goal of the invention adopts the following technical scheme that
The present invention discloses a kind of for heating the infrared electric heating material for the tobacco product that do not burn first, it is characterised in that:
The infrared electric heating material is ABO with metallic character3Type perovskite material, in which: one in A La, Sr, Ca, Mg, Bi
Kind is a variety of, and preferably not less than two kinds；B atom is one of Al, Ni, Fe, Co, Mn, Mo, Cr or a variety of, preferably not
Less than two kinds.When A or B is the no less than mixing of two kinds of elements, the relationship mutually adulterated is formed between each atom, is remarkably improved
The electric conductivity and infrared radiation property of material.
The invention also discloses above-mentioned for heating the infrared electric heating material for the tobacco product that do not burn, which is characterized in that presses
Following steps carry out:
(1) nitrate of the nitrate of A and B are added in deionized water, are uniformly mixed, obtain mixing salt solution；Wherein,
The molar ratio of A ion and B ion is A:B=1:1；
(2) mixing salt solution is warming up to 75~85 DEG C, then the aqueous solution of addition citric acid, constant temperature stirring 2~
7h obtains clear gel；Wherein, the molar ratio of the integral molar quantity and citric acid of A ion and B ion is 1:2~4；
(3) clear gel is dried to 8~10h in 120~140 DEG C of baking oven, obtains solid precursor；
(4) by after solid precursor grinding, it is placed in 3~5h of sintering in 550~850 DEG C of Muffle furnace, obtains ABO3
Type perovskite material, as heating the infrared electric heating material for the tobacco product that do not burn；
The infrared electric heating material is made as required shape, is placed in the mating smoking set for heating the tobacco product that do not burn,
Under the conditions of applied voltage, radiant heating is carried out to cigarette material is released.
Compared with the prior art, the beneficial effects of the present invention are embodied in:
1, infrared electric heating material prepared by the present invention is perovskite material with metallic character, infrared emittance
Height, resistance value are low, and infrared electric heating material of the invention is applied in the mating smoking set for heating the cigarette products that do not burn, excite red
Outer thermo electric material externally radiates the infrared ray of specific wavelength, carries out radiant heating to cigarette material is released, rises to mesh within a short period of time
Temperature is marked, provides heat to release cigarette material.The present invention provides new heat-supplying mode to heat the cigarette that do not burn.
2, infrared electric heating materials conductive performance of the invention is good, when not burning cigarette products for heating, can directly lead to
It crosses compacting sintering and is prepared into required shape and applied, without being prepared separately to conductive layer and infra-red radiation layer, simplify preparation
Method, can make to release cigarette material and be uniformly heated by radiant heating.
3, the present invention using perovskite material as infrared electric heating material, belong to ceramic-like materials, hardness itself greatly, scratch-resistant
Ability is strong.
Detailed description of the invention
Fig. 1 is the XRD diagram of the infrared electric heating material of each embodiment preparation；
Fig. 2 is the electrical resistivity results figure of the infrared electric heating material of each embodiment preparation.
Specific embodiment
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
The present embodiment prepares infrared electric heating material as follows:
(1) 0.8mol lanthanum nitrate, 0.2mol strontium nitrate, 0.95mol manganese nitrate and 0.05mol cobalt nitrate are weighed, is added
In 500mL deionized water, stirring obtains mixing salt solution to being completely dissolved；4mol citric acid is added in 50mL deionized water,
It stirs evenly, obtains the aqueous solution of citric acid；
(2) mixing salt solution is warming up to 80 DEG C, is then slowly added into the aqueous solution of citric acid, constant temperature stirs 3h, obtains
Clear gel；
(3) clear gel is dried to 10h in 120 DEG C of baking oven, obtains solid precursor；
(4) solid precursor is ground uniformly in alumina crucible, is subsequently placed in Muffle furnace, with the liter of 5 DEG C/min
Warm rate rises to 750 DEG C, keeps the temperature 5h, obtains perovskite infrared electric heating material after natural cooling, be denoted as
LaSrMn0.95Co0.05O3。
The XRD diagram of infrared electric heating material obtained by the present embodiment is as shown in Figure 1, resistivity is as shown in Figure 2.
The present embodiment gained infrared electric heating material is tested in the red of 2.5-15 mu m waveband with IRE-2 type infrared radiometer
External radiation rate, the results showed that its infrared emittance is 0.84.
In use, the shapes such as plate, hollow cylindrical, sheet can be prepared into the infrared electric heating material of the present embodiment on demand
State is placed in the mating smoking set for heating the cigarette products that do not burn, the quick HEATING INFRARED thermo electric material under 5.8V voltage, is excited red
The outer external infrared radiation of thermo electric material, so achieve the purpose that release cigarette material carry out radiant heating.Specifically, the present embodiment
Hollow cylindrical is made in infrared electric heating material, then places it in and heats in the smoking set that do not burn, heat up in 17 seconds after energization
To 290 DEG C, heated to cigarette material (Dubliss OIIO- Ι cigarette product) is released.In aspiration procedure, releasing cigarette material, to release cigarette equal
Even, amount of smoke is sufficient；After suction, releasing cigarette material, carbonization completely, is released cigarette material and is heated evenly substantially from inside to outside.
Embodiment 2
The present embodiment prepares infrared electric heating material as follows:
(1) 0.8mol lanthanum nitrate, 0.2mol strontium nitrate, 0.9mol manganese nitrate and 0.1mol cobalt nitrate are weighed, 500mL is added
In deionized water, stirring obtains mixing salt solution to being completely dissolved；4mol citric acid is added in 50mL deionized water, stirring
Uniformly, the aqueous solution of citric acid is obtained；
(2) mixing salt solution is warming up to 80 DEG C, is then slowly added into the aqueous solution of citric acid, constant temperature stirs 3h, obtains
Clear gel；
(3) clear gel is dried to 10h in 120 DEG C of baking oven, obtains solid precursor；
(4) solid precursor is ground uniformly in alumina crucible, is subsequently placed in Muffle furnace, with the liter of 5 DEG C/min
Warm rate rises to 750 DEG C, keeps the temperature 5h, obtains perovskite infrared electric heating material after cooling, be denoted as LaSrMn0.9Co0.1O3。
The XRD diagram of infrared electric heating material obtained by the present embodiment is as shown in Figure 1, resistivity is as shown in Figure 2.
The present embodiment gained infrared electric heating material is tested in the red of 2.5-15 mu m waveband with IRE-2 type infrared radiometer
External radiation rate, the results showed that its infrared emittance is 0.88.
In use, the shapes such as plate, hollow cylindrical, sheet can be prepared into the infrared electric heating material of the present embodiment on demand
State is placed in the mating smoking set for heating the cigarette products that do not burn, the quick HEATING INFRARED thermo electric material under 5.8V voltage, is excited red
The outer external infrared radiation of thermo electric material, so achieve the purpose that release cigarette material carry out radiant heating.Specifically, the present embodiment
Hollow cylindrical is made in infrared electric heating material, then places it in and heats in the smoking set that do not burn, heat up in 17 seconds after energization
To 290 DEG C, heated to cigarette material (Dubliss OIIO- Ι cigarette product) is released.In aspiration procedure, releasing cigarette material, to release cigarette equal
Even, amount of smoke is sufficient；After suction, releasing cigarette material, carbonization completely, is released cigarette material and is heated evenly substantially from inside to outside.
Embodiment 3
The present embodiment prepares infrared electric heating material as follows:
(1) 0.8mol lanthanum nitrate, 0.2mol strontium nitrate, 0.85mol manganese nitrate and 0.15mol cobalt nitrate are weighed, is added
In 500mL deionized water, stirring obtains mixing salt solution to being completely dissolved；4mol citric acid is added in 50mL deionized water,
It stirs evenly, obtains the aqueous solution of citric acid；
(2) mixing salt solution is warming up to 80 DEG C, is then slowly added into the aqueous solution of citric acid, constant temperature stirs 3h, obtains
Clear gel；
(3) clear gel is dried to 10h in 120 DEG C of baking oven, obtains solid precursor；
(4) solid precursor is ground uniformly in alumina crucible, is subsequently placed in Muffle furnace, with the liter of 5 DEG C/min
Warm rate rises to 750 DEG C, keeps the temperature 5h, obtains perovskite infrared electric heating material after cooling, be denoted as LaSrMn0.85Co0.15O3。
The XRD diagram of infrared electric heating material obtained by the present embodiment is as shown in Figure 1, resistivity is as shown in Figure 2.
The present embodiment gained infrared electric heating material is tested in the red of 2.5-15 mu m waveband with IRE-2 type infrared radiometer
External radiation rate, the results showed that its infrared emittance is 0.88.
In use, the shapes such as plate, hollow cylindrical, sheet can be prepared into the infrared electric heating material of the present embodiment on demand
State is placed in the mating smoking set for heating the cigarette products that do not burn, the quick HEATING INFRARED thermo electric material under 5.8V voltage, is excited red
The outer external infrared radiation of thermo electric material, so achieve the purpose that release cigarette material carry out radiant heating.Specifically, the present embodiment
Hollow cylindrical is made in infrared electric heating material, then places it in and heats in the smoking set that do not burn, heat up in 17 seconds after energization
To 290 DEG C, heated to cigarette material (Dubliss OIIO- Ι cigarette product) is released.In aspiration procedure, releasing cigarette material, to release cigarette equal
Even, amount of smoke is sufficient；After suction, releasing cigarette material, carbonization completely, is released cigarette material and is heated evenly substantially from inside to outside.
Embodiment 4
The present embodiment prepares infrared electric heating material as follows:
(1) 0.8mol lanthanum nitrate, 0.2mol strontium nitrate, 0.8mol manganese nitrate and 0.2mol cobalt nitrate are weighed, 500mL is added
In deionized water, stirring obtains mixing salt solution to being completely dissolved；4mol citric acid is added in 50mL deionized water, stirring
Uniformly, the aqueous solution of citric acid is obtained；
(2) mixing salt solution is warming up to 80 DEG C, is then slowly added into the aqueous solution of citric acid, constant temperature stirs 3h, obtains
Clear gel；
(3) clear gel is dried to 10h in 120 DEG C of baking oven, obtains solid precursor；
(4) it will grind uniformly, be subsequently placed in Muffle furnace, with the heating of 5 DEG C/min in solid precursor alumina crucible
Rate rises to 750 DEG C, keeps the temperature 5h, obtains perovskite infrared electric heating material after cooling, be denoted as LaSrMn0.8Co0.2O3。
The XRD diagram of infrared electric heating material obtained by the present embodiment is as shown in Figure 1, resistivity is as shown in Figure 2.
The present embodiment gained infrared electric heating material is tested in the red of 2.5-15 mu m waveband with IRE-2 type infrared radiometer
External radiation rate, the results showed that its infrared emittance is 0.90.
In use, plate, hollow cylindrical, sheet etc. can will can be prepared on demand the infrared electric heating material of the present embodiment
Form is placed in the mating smoking set for heating the cigarette products that do not burn, the quick HEATING INFRARED thermo electric material under 5.8V voltage, excitation
The external infrared radiation of infrared electric heating material, so achieve the purpose that release cigarette material carry out radiant heating.Specifically, this implementation
Hollow cylindrical is made in infrared electric heating material by example, is then placed it in and is heated in the smoking set that do not burn, rises in 17 seconds after energization
Temperature is heated to 290 DEG C to cigarette material (Dubliss OIIO- Ι cigarette product) is released.In aspiration procedure, releases cigarette material and release cigarette
Uniformly, amount of smoke is sufficient；After suction, releasing cigarette material, carbonization completely, is released cigarette material and is heated evenly substantially from inside to outside.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (4)
1. a kind of for heating the infrared electric heating material for the tobacco product that do not burn, it is characterised in that: the infrared electric heating material is
ABO with metallic character3Type perovskite material.
2. according to claim 1 for heating the infrared electric heating material of the tobacco product that do not burn, it is characterised in that: A is
One of La, Sr, Ca, Mg, Bi or a variety of, one of B Al, Ni, Fe, Co, Mn, Mo, Cr or a variety of.
3. it is a kind of of any of claims 1 or 2 for heating the preparation method of the infrared electric heating material for the tobacco product that do not burn,
It is characterized in that, carries out as follows:
(1) nitrate of the nitrate of A and B are added in deionized water, are uniformly mixed, obtain mixing salt solution；
(2) mixing salt solution is warming up to 75~85 DEG C, the aqueous solution of citric acid is then added, constant temperature stirs 2~7h, obtains
Obtain clear gel；
(3) clear gel is dried to 8~10h in 120~140 DEG C of baking oven, obtains solid precursor；
(4) by after solid precursor grinding, it is placed in 3~5h of sintering in 550~850 DEG C of Muffle furnace, obtains ABO3Type calcium titanium
Pit wood material, as heating the infrared electric heating material for the tobacco product that do not burn；
The infrared electric heating material is fabricated to required shape, is placed in the mating smoking set for heating the tobacco product that do not burn, outside
Under the conditions of making alive, radiant heating is carried out to cigarette material is released.
4. it is according to claim 3 for heating the preparation method of the infrared electric heating material for the tobacco product that do not burn, it is special
Sign is: the molar ratio of A ion and B ion is 1:1 in step (1), the integral molar quantity and lemon of A ion and B ion in step (2)
The molar ratio of lemon acid is 1:2~4.
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| WO2022095344A1 (en) * | 2020-11-09 | 2022-05-12 | 湖北中烟工业有限责任公司 | Heat-not-burn cigarette suitable for infrared heating apparatus |
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