CN110522081B - Heat-conducting tobacco shred as well as preparation method and application thereof - Google Patents
Heat-conducting tobacco shred as well as preparation method and application thereof Download PDFInfo
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- CN110522081B CN110522081B CN201810509024.8A CN201810509024A CN110522081B CN 110522081 B CN110522081 B CN 110522081B CN 201810509024 A CN201810509024 A CN 201810509024A CN 110522081 B CN110522081 B CN 110522081B
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- heat conducting
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 66
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 238000007598 dipping method Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000007639 printing Methods 0.000 claims abstract description 3
- 238000005507 spraying Methods 0.000 claims abstract description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 19
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 19
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 17
- 229910052708 sodium Inorganic materials 0.000 claims description 17
- 239000011734 sodium Substances 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 15
- 230000001070 adhesive effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000007777 multifunctional material Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 2
- 229920006332 epoxy adhesive Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 239000011230 binding agent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000002105 nanoparticle Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000001953 sensory effect Effects 0.000 abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 239000001569 carbon dioxide Substances 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000011370 conductive nanoparticle Substances 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical group [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002071 nanotube Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 239000003571 electronic cigarette Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention relates to a heat-conducting tobacco shred, and a preparation method and application thereof. The heat-conducting tobacco shred takes tobacco leaf or tobacco as a substrate, and a heat-conducting layer is coated on the surface of the substrate; the heat conduction coefficient of the heat conduction tobacco shred is 0.05-0.5Wm ‑1K‑1. The preparation method of the heat-conducting tobacco shreds comprises the following steps: and (3) attaching the heat conduction slurry on the surface of the substrate in a spraying, printing or dipping mode, and drying to form a heat conduction layer. The novel heat-conducting tobacco shred provided by the invention can effectively improve the heat utilization rate, increase the conversion and transmission efficiency of tobacco shred aroma substances and improve the sensory comfort of heating non-burning tobacco.
Description
Technical Field
The invention relates to a heat-conducting tobacco shred, and a preparation method and application thereof, and belongs to the technical field of tobacco processing.
Background
At present, the technology of electronic cigarettes, particularly the technology of heating non-burning cigarettes, is rapidly developed. Wherein, the conversion and the transmission of the aroma substances in the heated non-burning smoke mainly depend on an external heat source; if the heat transfer efficiency is low, the conversion and the transmission of the aroma components of the cut tobacco are insufficient, so that the resource waste and the sensory comfort of the heated non-burning tobacco are poor.
Disclosure of Invention
In order to solve the technical problems, the invention provides novel heat-conducting tobacco shreds, which can effectively improve the heat utilization rate, increase the conversion and transmission efficiency of tobacco shred aroma substances and improve the sensory comfort of heating non-burning cigarettes.
The technical scheme of the invention is as follows.
A heat-conducting cut tobacco takes tobacco leaf or tobacco as a substrate, and a heat-conducting layer is coated on the surface of the substrate.
The heat conductivity coefficient of the heat conducting tobacco shred is 0.05-0.5Wm -1K-1, preferably 0.25-0.5Wm -1K-1; such as 0.28Wm -1K-1、0.33Wm-1K-1、0.47Wm-1K-1.
The tobacco leaf or tobacco is preferably in the form of a sheet.
The heat conducting layer is in a dot shape, a linear shape, a sheet shape or other shapes which are suitable for use according to the use requirement on the surface of the substrate.
The heat conducting layer can be covered on one side of the tobacco shred or can be covered on two sides of the tobacco shred.
The thickness of the heat conducting layer can be determined according to actual needs.
The load capacity of the heat conducting layer is 10-100mg/m 2; preferably 30-50mg/m 2.
The heat conducting layer is prepared from a heat conducting substance or prepared by mixing the heat conducting substance with components such as an adhesive; wherein the mass ratio of the heat conducting substance to the adhesive is (0-15): 100: preferably 1: (9-11).
The heat conducting substance is selected from one or more of sodium metaaluminate, water glass and heat conducting carbon materials; preferably one or more of nanotubes, thermally conductive polymers, thermally conductive oxides, thermally conductive nanoparticles, graphene, sodium metaaluminate, water glass.
The adhesive is selected from one or more of high-temperature-resistant organic adhesive, preferably organic silica gel, phenolic resin adhesive, urea-formaldehyde resin adhesive, temperature-resistant epoxy adhesive, polyimide adhesive and the like.
The surfactant is selected from sodium dodecyl benzene sulfonate.
The invention also provides a preparation method of the heat-conducting tobacco shred, which comprises the following steps: and (3) attaching the heat-conducting slurry on the surface of the substrate in a spraying, printing or dipping mode, and drying to form a heat-conducting layer to obtain the heat-conducting cut tobacco.
The heat conducting slurry is prepared by dissolving a heat conducting substance in a solvent, or is prepared by mixing the heat conducting substance, an adhesive and other components in the solvent. Wherein the heat conducting substance is selected from one or more of sodium metaaluminate, water glass and heat conducting carbon materials; preferably one or more of nanotubes, thermally conductive polymers, thermally conductive oxides, thermally conductive nanoparticles, graphene, sodium metaaluminate, water glass.
The dipping operation conditions can be adjusted according to the types of the heat conducting substances, and specifically:
When the heat conducting substance is graphene and other substances, the substrate is only required to be immersed in the heat conducting slurry at normal temperature and normal pressure, and the substrate is kept stand;
when the heat conducting material is sodium metaaluminate and other materials, the heat conducting slurry is sodium metaaluminate aqueous solution with the content of 40 percent, the impregnation pressure is between normal pressure and 2.5MPa, the temperature is between room temperature and 100 ℃, and the impregnation is carried out for 0.5 to 10 hours;
When the heat conducting material is water glass, the heat conducting slurry is water glass water solution with the content of 50%, the dipping temperature is room temperature-100 ℃, the dipping pressure is normal pressure-1.5 MPa, and the dipping time is 0.5-10 hours.
The invention also provides application of the heat-conducting tobacco shreds in multifunctional materials; the multifunctional material is preferably an antistatic tobacco shred material, a planar heating tobacco shred material, a sensing tobacco shred material and the like.
Drawings
Fig. 1 is a schematic structural view of a heat-conducting cut tobacco according to the invention.
Detailed Description
The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Example 1
The embodiment is used for explaining the heat-conducting tobacco shreds and the preparation method thereof.
1) Adding 7.5mg of graphene and 75mg of high-temperature-resistant organic silica gel into 100g of water, adding 1mg of sodium dodecyl benzene sulfonate, and uniformly dispersing to obtain a heat-conducting slurry;
2) Immersing the tobacco sheet into the heat-conducting slurry, and standing for 3-5 minutes;
3) Drying the impregnated tobacco sheet at 50-100deg.C.
The tobacco obtained in this example was measured to have a thermal conductivity of 0.28Wm -1K-1.
Example 2
The embodiment is used for explaining the heat-conducting tobacco shreds and the preparation method thereof.
1) 200 G of sodium metaaluminate is weighed and dissolved in 300 g of deionized water to prepare a sodium metaaluminate aqueous solution with 40% sodium metaaluminate content, namely heat conduction slurry;
2) Immersing the tobacco sheets in an immersion tank, vacuumizing, injecting 40% of heat-conducting slurry, then boosting to 0.2MPa, and immersing at 80 ℃ for 0.5-10 hours;
3) Putting the tobacco sheet impregnated with sodium metaaluminate into a closed system, introducing carbon dioxide gas at room temperature, and keeping for 24 hours;
4) And (3) drying at 105 ℃ for 3-5 hours under the protection of nitrogen, thus obtaining the heat-conducting tobacco shreds.
The tobacco obtained in this example was measured to have a thermal conductivity of 0.12Wm -1K-1.
Example 3
The embodiment is used for explaining the heat-conducting tobacco shreds and the preparation method thereof.
1) 200 G of sodium metaaluminate is weighed and dissolved in 300 g of deionized water to prepare a sodium metaaluminate aqueous solution with 40% sodium metaaluminate content, namely heat conduction slurry;
2) Immersing the tobacco sheets in an immersion tank, vacuumizing, injecting 40% of heat-conducting slurry, then boosting to 1.8MPa, and immersing at 30 ℃ for 0.5-10 hours;
3) Putting the tobacco sheet impregnated with sodium metaaluminate into a closed system, introducing carbon dioxide gas at room temperature, and keeping for 24 hours;
4) And (3) drying at 105 ℃ for 3-5 hours under the protection of nitrogen, thus obtaining the heat-conducting tobacco shreds.
The tobacco obtained in this example was measured to have a thermal conductivity of 0.33Wm -1K-1.
Example 4
The embodiment is used for explaining the heat-conducting tobacco shreds and the preparation method thereof.
1) Weighing 150 g of water glass, dissolving in 150 g of deionized water, and preparing into water glass aqueous solution with 50% water glass content, namely heat-conducting slurry;
2) Heating the solution to 90 ℃, and immersing the tobacco sheet in the heated 50% water glass solution for 0.5-10 hours under normal pressure;
3) Putting the tobacco sheet impregnated with the water glass into a closed system, introducing carbon dioxide gas at room temperature, and keeping for 24 hours;
4) Under the protection of carbon dioxide gas, the heat conductivity coefficient of the material is measured to be 0.47Wm -1K-1 after the material is dried for 4 hours at 105 ℃.
Example 5
The embodiment is used for explaining the heat-conducting tobacco shreds and the preparation method thereof.
1) Weighing 150 g of water glass, dissolving in 150 g of deionized water, and preparing into water glass aqueous solution with 50% water glass content, namely heat-conducting slurry;
2) Heating the solution to 30 ℃, and immersing the tobacco sheet in the heated 50% water glass solution for 0.5-10 hours under the pressure of 0.5 MPa;
3) Putting the tobacco sheet impregnated with the water glass into a closed system, introducing carbon dioxide gas at room temperature, and keeping for 24 hours;
4) Under the protection of carbon dioxide gas, the heat conductivity coefficient of the material is measured to be 0.17Wm -1K-1 after the material is dried for 4 hours at 105 ℃.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (7)
1. A heat-conducting cut tobacco is characterized in that tobacco leaves or tobacco is used as a substrate, and a heat-conducting layer is coated on the surface of the substrate; the heat conductivity coefficient of the heat conducting tobacco shreds is 0.05-0.5 Wm -1K-1;
the tobacco leaves or the tobacco leaves are in a sheet shape;
The load capacity of the heat conducting layer is 10-100mg/m 2;
The heat conducting layer is made of a heat conducting substance or is made by mixing the heat conducting substance with an adhesive component; wherein the mass ratio of the heat conducting substance to the adhesive is (0-15): 100;
the heat conducting substance is selected from one or more of heat conducting nano particles, heat conducting carbon materials, sodium metaaluminate and water glass; the thermally conductive carbon material comprises graphene;
The adhesive is one or more selected from organic silica gel, phenolic resin adhesive, urea resin adhesive, temperature-resistant epoxy adhesive and polyimide adhesive.
2. The thermally conductive tobacco shred of claim 1, wherein the thermally conductive layer has a loading of 30-50mg/m 2.
3. The heat-conducting tobacco shred according to claim 1 or 2, wherein the mass ratio of the heat-conducting substance to the adhesive is 1: (9-11).
4. A method of making a thermally conductive cut tobacco as claimed in any one of claims 1 to 3, comprising: and (3) attaching the heat-conducting slurry on the surface of the substrate in a spraying, printing or dipping mode, and drying to form a heat-conducting layer to obtain the heat-conducting cut tobacco.
5. The method according to claim 4, wherein the heat conductive slurry is prepared by dissolving a heat conductive substance in a solvent or by mixing a heat conductive substance and a binder component in a solvent.
6. The preparation method of claim 5, wherein when the heat conducting substance is graphene, the substrate is immersed in the heat conducting slurry at normal temperature and normal pressure, and the substrate is left to stand;
When the heat conducting substance is sodium metaaluminate, the heat conducting slurry is sodium metaaluminate aqueous solution with the content of 40 percent, the impregnation pressure is normal pressure-2.5 MPa, the temperature is room temperature-100 ℃, and the impregnation is carried out for 0.5-10 hours;
when the heat conducting material is water glass, the heat conducting slurry is water glass water solution with the content of 50%, the dipping pressure is normal pressure-1.5 MPa, the dipping temperature is room temperature-100 ℃, and the dipping time is 0.5-10 hours.
7. Use of the heat-conducting tobacco shreds according to any one of claims 1-3 or obtained by the method according to any one of claims 4-6 in a multifunctional material; the multifunctional material is an antistatic tobacco shred material, a planar heating tobacco shred material and a sensing tobacco shred material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810509024.8A CN110522081B (en) | 2018-05-24 | 2018-05-24 | Heat-conducting tobacco shred as well as preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810509024.8A CN110522081B (en) | 2018-05-24 | 2018-05-24 | Heat-conducting tobacco shred as well as preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN110522081A CN110522081A (en) | 2019-12-03 |
| CN110522081B true CN110522081B (en) | 2024-04-23 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113796573B (en) * | 2021-10-09 | 2023-07-07 | 湖北中烟工业有限责任公司 | High heat conduction heating non-combustible tobacco leaf and cigarette product |
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| DE102013109755A1 (en) * | 2013-09-06 | 2015-03-12 | Rent A Scientist Gmbh | Conductive adhesive |
| CN105249519A (en) * | 2015-11-13 | 2016-01-20 | 中国烟草总公司郑州烟草研究院 | Reconstituted tobacco coating liquid preparing method suitable for novel cigarette |
| CN105342013A (en) * | 2015-11-06 | 2016-02-24 | 浙江中烟工业有限责任公司 | Solid smoke cartridge of novel electronic cigarette |
| CN105433434A (en) * | 2015-12-04 | 2016-03-30 | 河南中烟工业有限责任公司 | Tobacco material for smoking and preparation method thereof |
| CN105747264A (en) * | 2016-04-20 | 2016-07-13 | 贵州中烟工业有限责任公司 | Method for preparing heat-not-burn tobacco bases containing active carbon |
| CN107668764A (en) * | 2017-11-23 | 2018-02-09 | 重庆中烟工业有限责任公司 | One kind heats the reconstituted tobacoo and preparation method thereof that do not burn |
| CN208755163U (en) * | 2018-05-24 | 2019-04-19 | 中国科学院理化技术研究所 | Heat-conducting tobacco shred |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101399920B1 (en) * | 2007-09-13 | 2014-05-28 | 헨켈 아게 운트 코. 카게아아 | Electrically conductive composition |
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2018
- 2018-05-24 CN CN201810509024.8A patent/CN110522081B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2059077A1 (en) * | 1970-12-01 | 1972-06-22 | Tamag Basel Ag | Treating tobacco products with water glass soln - to produce a milder smoke |
| WO2012047349A1 (en) * | 2010-10-06 | 2012-04-12 | Celanese Acetate Llc | Smoke filters for smoking devices including porous masses |
| DE102013109755A1 (en) * | 2013-09-06 | 2015-03-12 | Rent A Scientist Gmbh | Conductive adhesive |
| CN105342013A (en) * | 2015-11-06 | 2016-02-24 | 浙江中烟工业有限责任公司 | Solid smoke cartridge of novel electronic cigarette |
| CN105249519A (en) * | 2015-11-13 | 2016-01-20 | 中国烟草总公司郑州烟草研究院 | Reconstituted tobacco coating liquid preparing method suitable for novel cigarette |
| CN105433434A (en) * | 2015-12-04 | 2016-03-30 | 河南中烟工业有限责任公司 | Tobacco material for smoking and preparation method thereof |
| CN105747264A (en) * | 2016-04-20 | 2016-07-13 | 贵州中烟工业有限责任公司 | Method for preparing heat-not-burn tobacco bases containing active carbon |
| CN107668764A (en) * | 2017-11-23 | 2018-02-09 | 重庆中烟工业有限责任公司 | One kind heats the reconstituted tobacoo and preparation method thereof that do not burn |
| CN208755163U (en) * | 2018-05-24 | 2019-04-19 | 中国科学院理化技术研究所 | Heat-conducting tobacco shred |
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