CN114716793A - Smoke cooling composite material for heating cigarettes and preparation method thereof - Google Patents
Smoke cooling composite material for heating cigarettes and preparation method thereof Download PDFInfo
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- CN114716793A CN114716793A CN202210246582.6A CN202210246582A CN114716793A CN 114716793 A CN114716793 A CN 114716793A CN 202210246582 A CN202210246582 A CN 202210246582A CN 114716793 A CN114716793 A CN 114716793A
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- composite material
- cooling composite
- heating
- smoke
- smoke cooling
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a smoke cooling composite material for heating cigarettes and a preparation method thereof, wherein the cooling composite material is a granular material prepared from biodegradable polybutadiene butanediol ester (PBS), a low-temperature phase-change material, a structural material and a heat-conducting filler through a melt blending process. The cooling composite material has high heat conductivity coefficient and large low-temperature phase change heat absorption enthalpy, can effectively reduce the temperature of flue gas, does not generate heat collapse in the heating process, and does not block the circulation of the flue gas.
Description
Technical Field
The invention belongs to the technical field of novel tobacco products, and particularly relates to a composite material capable of effectively reducing the smoke temperature of a cigarette which is not combusted during heating and a preparation method thereof.
Background
Along with the improvement of economic culture level of people, more and more people pay more attention to physical health, and the development of novel tobacco products is imperative. The low-temperature heating type cigarette is one of important products of novel tobacco products, generally transmits satisfaction and partial tobacco fragrance to a consumer in a mode of heating but not burning tobacco, has an appearance similar to that of a traditional cigarette in a consumption mode, and adapts to and meets the physiological needs and psychological needs of the consumer to a certain extent. However, the heated cigarettes are short and the smoke at the inlet is hot, which greatly affects the smoking experience of consumers, so that cooling materials need to be added into the heated cigarettes. The earliest cooling materials were PLA films. However, because of poor heat conductivity of PLA and slow heat diffusion rate, the smoke temperature can not be effectively transferred in the material when being transferred to PLA, the base material is made into a sheet shape, which can effectively increase the smoke contact area, but the sheet material is easy to shrink when being heated, even the melting and bonding phenomena occur, so that the smoke circulation is blocked, and meanwhile, the mechanical property and the machining property of PLA are poor, so that the application of PLA as a material for heating cigarette to cool is further limited.
The polybutadiene butanediol ester (PBS) material has good toughness and machinability, is lower in phase-change temperature, and has better application prospect compared with PLA. But a single PBS material can generate serious thermal collapse after passing through high-temperature flue gas, so that the circulation of the flue gas is blocked, the cooling effect of the flue gas at the front two openings is not obvious due to the general thermal conductivity of the PBS material, and meanwhile, the single PBS material has large interception to the flue gas and is not suitable for being directly used as a cooling material.
Therefore, it is desirable to find a cooling material which can reduce the temperature of the flue gas and has excellent mechanical properties, anti-heat collapse capability and lower flue gas adsorption retention.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a smoke cooling composite material for heating cigarettes, which has the advantages of good smoke cooling effect, no thermal collapse and small smoke interception.
In order to realize the purpose of the invention, the following technical scheme is adopted:
a smoke cooling composite material for heating cigarettes is characterized in that: the composite material is prepared from the following raw materials in percentage by mass by a melt blending method:
50-85% of a base material, 0-30% of a low-temperature phase change material, 5-35% of a structural material and 0-20% of a heat-conducting filler.
The smoke cooling composite material of the invention utilizes the low-temperature phase change characteristic to cool smoke.
Further, the smoke cooling composite material for the heating cigarette is granular with the particle size of 1.0-2.3 mm. The particle size of the cooling material can greatly influence the cooling effect, and the cooling particles are obtained by screening, so that the comprehensive performance of cooling the flue gas is optimal when the particle size is 1.0-2.3 mm. When the particle size is less than 1.0mm, the particles are easy to bond and block the circulation of smoke; when the thickness is higher than 2.3mm, the specific surface area of the contact between the flue gas and the composite material is reduced, which is not beneficial to cooling the flue gas.
Further: the substrate material is PBS material. The phase change temperature of the low-temperature phase change material is 50-80 ℃, and the low-temperature phase change material is at least one of PEG-2000, PEG-4000, palm wax, paraffin and beeswax. The structural material is polylactic acid (PLA), diatomite and SiO2At least one of (1). The heat-conducting filler is SiC crystal whisker or particle, ZnO, AlN or Al2O3At least one of Boron Nitride (BN) and carbon fiber.
The preparation method of the smoke cooling composite material for heating cigarettes comprises the following steps: weighing and mixing the raw materials according to the proportion, adding the raw materials into a double-screw extruder for melt blending to uniformly mix the components, enabling the molten fluid to flow through a neck mold, entering a cutting chamber filled with water, cutting the molten fluid into particles, conveying the particles to centrifugal drying equipment for separating water from the particles, and drying the particles in an oven to obtain the smoke cooling composite material for heating cigarettes.
The invention also discloses the application of the smoke cooling composite material, which is used as a cooling material to be added into a cooling section between a smoke release material section and a solid filter section of a heated cigarette so as to reduce the smoke temperature. The circumference of the cigarette which is not burnt during heating is 18-25 mm, the length of the cooling section is 10-15 mm, and the filling mass of the cooling material is 0.2-0.3 g.
Compared with the prior art, the invention has the beneficial effects that:
1. the prepared cooling composite material has the advantages of large low-temperature phase change heat absorption enthalpy and high heat conductivity coefficient, and the heat generated when high-temperature flue gas flows through the composite material can be quickly absorbed, so that the cooling effect on the flue gas is good.
2. The cooling composite material has better selective adsorption capacity on water in the flue gas, can further improve the flue gas cooling effect and reduce the flue gas interception.
3. The cooling composite material provided by the invention has the advantages that due to the structural support effect of the filler, thermal collapse cannot be generated in the heating process, the smoke circulation cannot be blocked, the mechanical processability is good, the preparation method is simple, and the industrial application is facilitated.
4. The cooling composite material prepared by the invention has the advantages of easily available raw materials, low price, biodegradability, no chemical solvent in the preparation process and environmental friendliness.
Drawings
FIG. 1 is a diagram showing the results of a smoke temperature test of the cooling composite material prepared in each example after being applied to cigarettes.
Fig. 2 is a photograph of the morphology of the temperature reducing particles of the embodiments after being heated.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
The cooling material of the embodiment is prepared by the following method:
weighing raw materials according to the mass percentage of 3:1 in PBS, uniformly mixing the raw materials in a mixer, firstly mixing and blending, then extruding by using a double-screw extrusion device, wherein the rotating speed of a screw is 50r/min, the feeding speed is 30g/cm, the double-screw extrusion device has 7 heating regions, the temperature of each region is set to be 110 ℃, 125 ℃, 135 ℃, 140 ℃, 120 ℃, 115 ℃ and 110 ℃, the melt-blended fluid flows through a neck mold and enters a cutting chamber filled with water to be cut into granules, and finally, the granules with the grain diameter of 1.6mm are screened out for later use after being dried by a centrifugal drying device.
The performance of the cooled composite material obtained in this example was tested as follows:
setting an experimental cigarette with the circumference of 22.4mm and the total length of 45mm, wherein the length of the cooling section is 10mm, filling 0.22g of the cooling particles in the embodiment, testing the smoke temperature by using a thermocouple at a position 2mm away from the plane of the filter tip, taking the cigarette without the cooling material as a control sample, and testing the smoke temperature as shown in figure 1 under the condition of unified smoking set heating conditions. It can be seen that, through the cooling particles of the embodiment, the smoke temperature of the cigarette sample is obviously reduced compared with that of the comparative sample. The flue gas intercepting flow and the test result of the moisture content of the flue gas are shown in table 1, and it can be seen that the cooling material in the embodiment has stronger adsorption capacity on moisture in the flue gas.
As can be seen from fig. 2, the cooling particles of the present embodiment do not generate thermal collapse during the heating process, and do not block the flow of the flue gas.
Example 2
The cooling particles of the present example were prepared as follows:
weighing 750g of PBS, 250g of PLA and 200g of PEG-2000 raw materials, uniformly mixing in a mixer, banburying and blending, extruding by using a double-screw extrusion device, wherein the rotating speed of a screw is 50r/min, the feeding speed is 30g/cm, the double-screw extrusion device has 7 heating regions, the setting temperature of each region is 110 ℃, 125 ℃, 135 ℃, 140 ℃, 120 ℃, 115 ℃ and 110 ℃, the molten and blended fluid flows through a neck mold to enter a cutting chamber filled with water for cutting and granulating, and finally, drying by using a centrifugal drying device, and screening particles with the particle size of 1.6mm for later use.
The performance of the temperature-reducing granules obtained in this example was tested as follows:
setting an experimental cigarette with the circumference of 22.4mm and the total length of 45mm, wherein the length of the cooling section is 10mm, filling 0.22g of the cooling particles in the embodiment, testing the smoke temperature by using a thermocouple at a position 2mm away from the plane of the filter tip, taking the cigarette without the cooling material as a control sample, and testing the smoke temperature as shown in figure 1 under the condition of unified smoking set heating conditions. It can be seen that, through the cooling particles of the embodiment, the smoke temperature of the cigarette sample is obviously reduced compared with that of the comparative sample. The flue gas intercepting flow and the test result of the moisture content of the flue gas are shown in table 1, and it can be seen that the cooling material in the embodiment has stronger adsorption capacity to the moisture in the flue gas.
As can be seen from fig. 2, the temperature-reducing particles of the present embodiment do not generate thermal collapse during the heating process, and do not block the flow of the flue gas.
Example 3
The cooling particles of the present example were prepared as follows:
weighing 750g of PBS, 250g of PLA, 200g of PEG-2000 and 150g of Boron Nitride (BN) raw materials, putting the raw materials into a mixing machine, uniformly mixing, firstly carrying out banburying and blending, then carrying out extrusion by using a double-screw extrusion device, wherein the rotating speed of a screw is 50r/min, the feeding speed is 30g/cm, the double-screw extrusion device has 7 heating regions in total, the temperature of each region is set to be 110 ℃, 125 ℃, 135 ℃, 140 ℃, 120 ℃, 115 ℃ and 110 ℃ in sequence, a melt-blended fluid flows through a neck mold, enters a cutting chamber filled with water for cutting and granulating, and finally, drying by using a centrifugal drying device, and screening particles with the particle size of 1.6mm for later use.
The performance of the temperature-reducing granules obtained in this example was tested as follows:
setting an experimental cigarette with the circumference of 22.4mm and the total length of 45mm, wherein the length of the cooling section is 10mm, filling 0.22g of the cooling particles in the embodiment, testing the smoke temperature by using a thermocouple at a position 2mm away from the plane of the filter tip, taking the cigarette without the cooling material as a control sample, and testing the smoke temperature as shown in figure 1 under the condition of unified smoking set heating conditions. It can be seen that, through the cooling particles of the embodiment, the smoke temperature of the cigarette sample is obviously reduced compared with that of the comparative sample. The flue gas intercepting flow and the test result of the moisture content of the flue gas are shown in table 1, and it can be seen that the cooling material in the embodiment has stronger adsorption capacity to the moisture in the flue gas.
As can be seen from fig. 2, the temperature-reducing particles of the present embodiment do not generate thermal collapse during the heating process, and do not block the flow of the flue gas.
Example 4
The cooling particles of the present example were prepared as follows:
750g of PBS and 250g of SiO were weighed2200g of beewax and 150g of silicon carbide (SiC) raw material are placed in a mixing machine to be uniformly mixed, firstly, banburying and blending are carried out, then, a double-screw extrusion device is used for extrusion, the rotating speed of a screw is 50r/min, the feeding speed is 30g/cm, the double-screw extrusion device has 7 heating areas, the temperature of each area is set to be 110 ℃, 125 ℃, 135 ℃, 140 ℃, 120 ℃, 115 ℃ and 110 ℃, the melt-blended fluid flows through a neck mold to enter a cutting chamber filled with water for cutting and granulation, and finally, the particles with the particle size of 1.6mm are screened out for later use after being dried by a centrifugal drying device.
The performance of the temperature-reducing granules obtained in this example was tested as follows:
setting an experimental cigarette with the circumference of 22.4mm and the total length of 45mm, wherein the length of the cooling section is 10mm, filling 0.22g of the cooling particles in the embodiment, testing the smoke temperature by using a thermocouple at a position 2mm away from the plane of the filter tip, taking the cigarette without the cooling material as a control sample, and testing the smoke temperature as shown in figure 1 under the condition of unified smoking set heating conditions. It can be seen that, through the cooling particles of the embodiment, the smoke temperature of the cigarette sample is obviously reduced compared with that of the comparative sample. The flue gas intercepting flow and the test result of the moisture content of the flue gas are shown in table 1, and it can be seen that the cooling material in the embodiment has stronger adsorption capacity to the moisture in the flue gas.
As can be seen from fig. 2, the temperature-reducing particles of the present embodiment do not generate thermal collapse during the heating process, and do not block the flow of the flue gas.
TABLE 1
| Sample numbering | Smoke shutoff volume (mg/count) | Smoke moisture (mg/count) |
| Control sample | / | 25.45 |
| PLA-PBS | 3.6 | 22.06 |
| PEG-PLA-PBS | 3.1 | 17.53 |
| BN-PEG-PLA-PBS | 2.8 | 17.02 |
| SiC-beeswax-SiO2-PBS | 3.0 | 20.33 |
Claims (8)
1. The smoke cooling composite material for heating the cigarettes is characterized by being prepared from the following raw materials in percentage by mass through a melt blending method:
50-85% of a base material, 0-30% of a low-temperature phase change material, 5-35% of a structural material and 0-20% of a heat-conducting filler.
2. The smoke cooling composite material for heating cigarettes according to claim 1, which is characterized in that: the substrate material is PBS material.
3. The smoke cooling composite material for heating cigarettes according to claim 1, which is characterized in that: the phase change temperature of the low-temperature phase change material is 50-80 ℃, and the low-temperature phase change material is at least one of PEG-2000, PEG-4000, palm wax, paraffin and beeswax.
4. The smoke cooling composite material for heating cigarettes according to claim 1, which is characterized in that: the structural material is polylactic acid, diatomite and SiO2At least one of (1).
5. The smoke cooling composite material for heating cigarettes according to claim 1, which is characterized in that: the heat-conducting filler is SiC crystal whisker or particle, ZnO, AlN or Al2O3At least one of boron nitride and carbon fiber.
6. The smoke cooling composite material for heating cigarettes according to claim 1, which is characterized in that: the smoke cooling composite material for the heating cigarette is granular with the particle size of 1.0-2.3 mm.
7. A method for preparing the smoke cooling composite material for heating cigarettes according to any one of claims 1 to 6, which is characterized by comprising the following steps: weighing and mixing the raw materials according to the proportion, adding the raw materials into a double-screw extruder for melt blending to uniformly mix the components, enabling the molten fluid to flow through a neck mold, entering a cutting chamber filled with water, cutting the molten fluid into particles, conveying the particles to centrifugal drying equipment for separating water from the particles, and drying the particles in an oven to obtain the smoke cooling composite material for heating cigarettes.
8. The application of the smoke cooling composite material for heating cigarettes as claimed in any one of claims 1 to 6 is characterized in that: is used for being added into the temperature reduction section of the heated cigarette so as to reduce the temperature of smoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210246582.6A CN114716793A (en) | 2022-03-14 | 2022-03-14 | Smoke cooling composite material for heating cigarettes and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210246582.6A CN114716793A (en) | 2022-03-14 | 2022-03-14 | Smoke cooling composite material for heating cigarettes and preparation method thereof |
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| CN114716793A true CN114716793A (en) | 2022-07-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140070465A1 (en) * | 2010-10-15 | 2014-03-13 | Celanese Acetate Llc | Apparatuses, systems, and associated methods for forming porous masses for smoke filters |
| US20140305448A1 (en) * | 2011-12-30 | 2014-10-16 | Philip Morris Products S.A. | Aerosol-generating article for use with an aerosol-generating device |
| CN108143004A (en) * | 2017-12-22 | 2018-06-12 | 安徽中烟工业有限责任公司 | It is a kind of to heat do not burn cigarette smoke cooling material and its application |
| CN113080509A (en) * | 2021-04-12 | 2021-07-09 | 上海华宝生物科技有限公司 | Temperature-reducing member master batch for heating non-combustible cigarettes and preparation method thereof |
| CN113925201A (en) * | 2021-10-26 | 2022-01-14 | 湖北中烟工业有限责任公司 | High-filtration low-suction-resistance degradable cigarette filter tip and preparation method thereof |
-
2022
- 2022-03-14 CN CN202210246582.6A patent/CN114716793A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140070465A1 (en) * | 2010-10-15 | 2014-03-13 | Celanese Acetate Llc | Apparatuses, systems, and associated methods for forming porous masses for smoke filters |
| US20140305448A1 (en) * | 2011-12-30 | 2014-10-16 | Philip Morris Products S.A. | Aerosol-generating article for use with an aerosol-generating device |
| CN108143004A (en) * | 2017-12-22 | 2018-06-12 | 安徽中烟工业有限责任公司 | It is a kind of to heat do not burn cigarette smoke cooling material and its application |
| CN113080509A (en) * | 2021-04-12 | 2021-07-09 | 上海华宝生物科技有限公司 | Temperature-reducing member master batch for heating non-combustible cigarettes and preparation method thereof |
| CN113925201A (en) * | 2021-10-26 | 2022-01-14 | 湖北中烟工业有限责任公司 | High-filtration low-suction-resistance degradable cigarette filter tip and preparation method thereof |
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