Aerosol-generating article

Abstract

The application provides an aerosol generating article, comprising a structure section, the structure section comprising: a substrate section comprising an aerosol generating substrate; and a functional section arranged at least on one side of the substrate section; wherein the functional section comprises one or more of a front plug section, a temperature reduction section, a support section, and a filter section, one or more of the front plug section, the temperature reduction section, the support section, and the filter section being made of a composite material, the composite material comprising a polymer material and an inorganic non-metallic filler material.

Description

Technical Field

[0001] This application relates to the field of atomization technology, specifically to an aerosol generating product. Background Technology

[0002] Heated non-combustible aerosol generators are devices that use a special heat source to heat the aerosol-generating matrix. During heating, various substances in the matrix volatilize to produce aerosols that satisfy the smoker's needs. No open flame or ash is produced during inhalation, making it environmentally friendly and providing a better user experience. It also reduces the harmful substances produced by the high-temperature decomposition of conventional atomizing matrices during combustion, thus minimizing harm to the user. These aerosol generators include structural sections, which generally consist of a matrix section and functional sections. The functional sections include one or more of the following: a pre-plug section, a cooling section, a support section, and a filter section. The cooling section and / or the support section, located between the matrix section and the filter section, primarily serve as a support structure and aerosol channel. As the high-temperature aerosol passes through, heat exchange occurs, lowering the aerosol release temperature and ensuring it reaches a suitable temperature upon entering the smoker's mouth.

[0003] Currently, the effect of functional segments in reducing aerosol release temperature is insufficient, and the materials of functional segments have poor thermal stability and mechanical properties due to excessively high local temperatures during use, which can easily lead to structural softening or breakage of aerosol-generated products. Summary of the Invention

[0004] In view of this, the main objective of this application is to provide an aerosol generating article that significantly reduces the aerosol release temperature by making at least a portion of the functional section made of a composite material, while taking into account the thermal stability and mechanical properties of the aerosol generating article.

[0005] To achieve the above objectives, this application provides the following technical solution.

[0006] This application provides an aerosol generating article, comprising a structural segment, characterized in that the structural segment comprises: a matrix segment, including an aerosol generating matrix; and a functional segment, at least disposed on one side of the matrix segment; wherein the functional segment comprises one or more of a pre-plug segment, a cooling segment, a support segment, and a filter segment, and one or more of the pre-plug segment, the cooling segment, the support segment, and the filter segment are made of composite materials, the composite materials comprising polymer materials and inorganic non-metallic filler materials.

[0007] According to one embodiment of this disclosure, based on the total mass of the composite material, the polymeric material accounts for 55% to 97% by mass, and the inorganic non-metallic filler material accounts for 3% to 35% by mass.

[0008] According to one embodiment of this disclosure, the polymer material is selected from one or more of polyethylene, polypropylene, high-temperature resistant silicone, epoxy resin, polycarbonate, polyethylene terephthalate, polybutylene terephthalate, polylactic acid, polycaprolactone, polyhydroxyalkanoates, polycyclohexanediol terephthalate, polyethylene terephthalate-1,4-cyclohexanediol terephthalate, polyimide, and polysulfone.

[0009] According to one embodiment of this disclosure, the polymer material is selected from one or more of polycarbonate, polyethylene terephthalate, polyethylene terephthalate-1,4-cyclohexanediol ester, and epoxy resin.

[0010] According to one embodiment of this disclosure, the inorganic non-metallic filler material is selected from one or more of calcium carbonate, talc, wollastonite, glass microspheres, mica powder, silicon dioxide, clay, carbon fiber, silicon carbide, carbon black, and boron nitride.

[0011] According to one embodiment of this disclosure, the inorganic non-metallic filler material is selected from one or more of calcium carbonate, talc, silica, and clay.

[0012] According to one embodiment of this disclosure, the composite material further includes a compatibilizer.

[0013] According to one embodiment of this disclosure, the compatibilizer has a mass percentage of 1% to 5% based on the total mass of the composite material.

[0014] According to one embodiment of this disclosure, the composite material includes an antioxidant and a lubricant.

[0015] According to one embodiment of this disclosure, the functional segment includes a cooling segment and a filtering segment, wherein the filtering segment and the cooling segment are integrally formed; preferably, the functional segment includes a support segment, a cooling segment and a filtering segment, wherein the support segment, the filtering segment and the cooling segment are integrally formed.

[0016] According to one embodiment of the present disclosure, the structural segment includes micropores; preferably, the structural segment further includes at least one air passage hole that penetrates at least one end of the structural segment along its length.

[0017] In this application, at least one of the pre-plug section, cooling section, support section and filter section of the aerosol generation article is made by using a composite material including polymer materials and inorganic non-metallic filler materials. Since the inorganic non-metallic filler materials can effectively fill the gaps in the polymer, they have enhanced heat dissipation performance, thereby significantly reducing the aerosol release temperature, while also taking into account the mechanical properties and thermal stability of the composite material. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an aerosol-generating article according to an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the structure of an aerosol-generating article according to another embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the structure of an aerosol-generating article according to another embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the structure of an aerosol-generating article according to another embodiment of this application.

[0022] Figure 5 This is a structural schematic diagram of a matrix segment or functional segment in an embodiment of this application, along a cross section perpendicular to the length direction.

[0023] Figure 6 This is a structural schematic diagram of a matrix segment or functional segment in another embodiment of this application, along a cross section perpendicular to the length direction.

[0024] Figure 7 This is a structural schematic diagram of a matrix segment or functional segment in a cross section perpendicular to the length direction, according to another embodiment of this application. Detailed Implementation

[0025] The following detailed description discusses exemplary embodiments. The specific embodiments included herein should not be construed as limiting this application. Furthermore, while specific language may be used to describe features, actions, and / or structures in the embodiments described herein, the claims are not limited to the described features, actions, and / or structures. Those skilled in the art will understand that other embodiments, including improvements, are possible within the spirit and scope of this application.

[0026] Throughout this specification, unless otherwise specified, the terminology used herein should be understood as having the meaning as commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] It should be noted that, in the embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a method or apparatus that includes a list of elements includes not only the elements expressly stated, but also other elements not expressly listed, or elements inherent to implementing the method or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other related elements in the method or apparatus that includes that element.

[0028] Existing aerosol-generating products produce high-temperature aerosols that heat the functional sections. Currently, commonly used materials for these functional sections are plant fiber derivatives or single synthetic polymers, such as cellulose acetate structures, corrugated paper, fiber paper, and polypropylene. However, these materials are insufficient in reducing the aerosol release temperature, and their support effect decreases significantly when exposed to high-temperature aerosols, even leading to structural breakage.

[0029] In view of this, this application provides an aerosol generating article, comprising a structural segment, the structural segment comprising: a matrix segment, including an aerosol generating matrix; and a functional segment, at least disposed on one side of the matrix segment; wherein the functional segment comprises one or more of a pre-plug segment, a cooling segment, a support segment, and a filter segment, and one or more of the pre-plug segment, the cooling segment, the support segment, and the filter segment are made of composite materials, the composite materials comprising polymeric materials and inorganic non-metallic filler materials.

[0030] In this application, the composite material comprises a polymer material and an inorganic non-metallic filler material. It possesses the high toughness of the polymer material, and the inorganic non-metallic filler material effectively fills the voids in the polymer, thereby improving the density, rigidity, and thermal stability of the composite material. While inorganic non-metallic filler materials are generally considered to have poor thermal conductivity, the inventors have discovered that the composite material of this application also exhibits enhanced heat dissipation performance, optimizing heat distribution in relevant sections and preventing localized overheating. Therefore, using this composite material to manufacture one or more of the following sections in an aerosol generation product—the pre-plug section, cooling section, support section, and filter section—can significantly reduce the aerosol release temperature.

[0031] As used herein, the term "aerosol generating article" describes an article that can be used in conjunction with an aerosol generating device, wherein the aerosol generating device includes a heating component and a power supply component. The power supply component provides electrical energy to the heating component, which converts the electrical energy into other forms of energy and applies them to the aerosol generating matrix in the matrix section, thereby heating the aerosol generating matrix to generate aerosols for inhalation by a user. Preferably, the aerosol generating device is an inhalation device for generating aerosols that can be directly inhaled by the user through their mouth. Specifically, the aerosol generating device is a handheld aerosol generating device.

[0032] As used herein, the term "aerosol-generating matrix" refers to a matrix that, upon heating, releases volatile compounds that can form aerosols. The aerosol-generating matrix is ​​part of an aerosol-generating article. The aerosol-generating matrix can be solid or preferably liquid. In both cases, the aerosol-generating matrix may include at least one of solid and liquid components. The aerosol-generating matrix may include tobacco material containing volatile tobacco flavoring compounds that are released upon heating. Alternatively, the aerosol-generating matrix may include non-tobacco materials, such as aerosol forming agents. Examples of suitable aerosol forming agents are glycerol and propylene glycol. The aerosol-generating matrix may also include other additives and ingredients, such as nicotine or flavorings.

[0033] The structural segment of this application is used as a component in aerosol-generated articles. This application does not specifically limit the shape and structure of the structural segment, and those skilled in the art can adjust the shape and structure of the structural segment accordingly based on its application.

[0034] In some embodiments, the structural segment includes micropores. Micropores refer to the gaps between the components that form microscopic pores after the composition used to prepare the structural segment is molded. This facilitates the formation of aerosols.

[0035] In some embodiments, the cross-sectional area of ​​the micropore is 0.7 nm. 2 ~710μm 2 Alternatively, the hydraulic diameter of the micropores is 10 nm to 30 μm.

[0036] In some embodiments, the cross-sectional area of ​​the micropore is 1963 nm. 2 ~20μm 2 Alternatively, the hydraulic diameter of the micropores is 50 nm to 5 μm.

[0037] In some embodiments, the structural segment further includes air passages extending through at least one end of the structural segment along its length. This improves the air permeability of the structural segment.

[0038] In some embodiments, the air passage extends through opposite ends of the structural segment along its length.

[0039] In some embodiments, the interior of the structural segment has multiple air passages.

[0040] In some embodiments, the cross-sectional shape of the airway opening is circular, elliptical, racetrack-shaped, fan-shaped, or polygonal in a plane perpendicular to the length direction of the functional segment and / or matrix segment.

[0041] In some embodiments, the cross-sectional area of ​​the airway orifice is 0.0019 mm. 2-30 mm 2 Alternatively, the hydraulic diameter of the air passage orifice is 0.05mm-6mm. In this application, the hydraulic diameter refers to the ratio of four times the cross-sectional area to the perimeter. In some preferred embodiments, the cross-sectional area of ​​the air passage orifice is 0.007mm². 2 ~7.1mm 2 (square millimeters). In some preferred embodiments, the hydraulic diameter of the airway orifice is 0.1 mm to 3 mm. This facilitates more uniform aerosol release and higher utilization.

[0042] In some embodiments, the wall thickness of the spacer wall between adjacent air passages is 10 μm to 800 μm. This facilitates heat penetration and diffusion, resulting in higher heat transfer efficiency, while also maintaining structural strength.

[0043] In some embodiments, the cross-sectional area of ​​the airway pores is 20 to 60,000 times that of the micropores. This is beneficial for balancing the structural stability of the structural segment and the aerosol release rate. In some embodiments, the cross-sectional area of ​​the airway pores is 100 to 40,000 times that of the micropores.

[0044] In some embodiments, the aerosol generating article is selected from combustible aerosol generating articles, heated non-combustible aerosol generating articles, and / or atomized aerosol generating articles.

[0045] Taking a heat-not-combustible aerosol-generating product as an example, the following is combined with the appendix. Figure 1-4 The structure of the aerosol-generating article of this application is illustrated by way of example.

[0046] In some implementations, reference Figure 1 The aerosol-generating article includes the matrix segment 20, the functional segment 30, and the encapsulation layer (not shown in the figure) described above. The functional segment 30 is disposed at one end of the matrix segment 20 along its length. The encapsulation layer covers the circumferential exterior of the functional segment and the matrix segment.

[0047] The matrix segment 20 has two axial ends, a proximal lip end 20a and a distal lip end 20b. The proximal lip end 20a refers to the end of the matrix segment 20 closest to the user's lips when using the aerosol-generating article, and the distal lip end 20b refers to the end of the matrix segment 20 furthest from the user's lips when using the aerosol-generating article. In this application, the matrix segment includes the aerosol-generating matrix described in this application, and therefore will not be elaborated further.

[0048] The encapsulation layer can protect the substrate segment. The encapsulation layer includes, but is not limited to, one or more of the following materials: fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, polyethylene (PE), polybutylene terephthalate (PBAT).

[0049] Please see Figure 1 The functional segment 30 is located near the lip end 20a of the matrix segment 20.

[0050] In some implementations, such as Figure 1 As shown, the functional section 30 includes a filter section, which is located near the lip end 20a of the matrix section 20 along its axial direction. The aerosol generated by the matrix section is transported to the filter section under suction negative pressure. The filter section is used to filter and / or adsorb some particulate matter and harmful substances in the aerosol, improving the user's suction experience and enhancing the safety of the aerosol-generated products. Furthermore, the process of transporting the aerosol through the filter section to the user can reduce the aerosol temperature, mitigating the "scalding" sensation when the user inhales the aerosol.

[0051] In some implementations, such as Figure 2 The functional section includes a support section 31, a cooling section 32, and a filter section 33. The support section 31 is located near the lip end 20a of the matrix section 20 along its axial direction. One end of the cooling section 32 is located at the end of the support section 31 away from the matrix section 20 along its axial direction. The filter section 33 is located at the other end of the cooling section 32.

[0052] The support section 31 can connect and support the matrix section 20 and the cooling section 32 at both ends. The cooling section 32 is used to reduce the temperature of the aerosol so that the temperature of the aerosol flowing out of the filter section 33 is suitable and avoids the problem of the aerosol being "hot to the mouth".

[0053] Of course, the positions of the support section and the cooling section can also be interchanged, that is, the cooling section 32 is connected to one end of the matrix section 20 along the axis, and the two ends of the support section 31 are connected to the other end of the cooling section 32 and the filter section 33, respectively.

[0054] In some embodiments, the functional segment further includes a front plug segment 10. (See reference...) Figure 3 and Figure 4 The aerosol generating product includes a pre-plug section 10, a matrix section 20 as described above, a functional section excluding the pre-plug section, and a wrapping layer (not shown in the figure). The functional section excluding the pre-plug section is located at one end of the matrix section 20 along its length, and the pre-plug section 10 is located at the other end of the matrix section 20 along its length. The wrapping layer wraps around the circumferential exterior of the pre-plug section 10, the functional section excluding the pre-plug section, and the matrix section. The pre-plug section can improve the problem of matrix section 20 falling off. In addition, the pre-plug section 10 can adsorb the aerosol that condenses and flows back after the aerosol generating product stops pumping, thereby avoiding the problem of aerosol condensation flowing downwards and causing internal contamination of the aerosol generating device, making it difficult to clean, and the problem of cross-contamination of flavors when pumping different flavored aerosol generating products.

[0055] In some embodiments, the functional section, excluding the portion above the forepump section, consists of a cooling section and a filtering section. For example... Figure 3 As shown, the aerosol-generating article includes a pre-plug section 10, a matrix section 20 as described above, a cooling section 32, a filter section 33, and a coating layer. The pre-plug section is located at the distal lip end 20b of the matrix section, the cooling section is located at the proximal lip end 20a of the matrix section, and the filter section is located at the other end of the cooling section away from the matrix section.

[0056] In some embodiments, the functional section, excluding the forepump section, consists of a support section, a cooling section, and a filter section. For example... Figure 4 As shown, the aerosol-generating article includes a pre-plug section 10, a matrix section 20 (described above), a support section 31, a cooling section 32, a filter section 33, and a coating layer. The pre-plug section is located at the distal lip end 20b of the matrix section, the support section 31 is located at the proximal lip end 20a of the matrix section, and the cooling section 32 is located at the end of the support section 31 axially away from the matrix section 20. The filter section 33 is located at the end of the cooling section 32 axially away from the support section 31.

[0057] This application does not limit the structure of the functional sections. In some exemplary embodiments, such as Figure 5 and Figure 6 As shown, the functional section is provided with at least one air passage hole, which penetrates the end faces of opposite ends of the functional section along the axial direction. The air passage hole helps to improve the air permeability of the functional section and reduce suction resistance.

[0058] In some embodiments, the airway opening extends through both ends of the functional segment and / or matrix segment along its length. This helps to reduce suction resistance for the user.

[0059] In some implementations, such as Figure 5 As shown, the functional segment and / or matrix segment has an airway opening inside. This helps to reduce the suction resistance for the user.

[0060] In some implementations, such as Figure 6 As shown, the functional segment and / or matrix segment have multiple airway pores inside. This is more conducive to reducing the suction resistance for the user.

[0061] In some other exemplary embodiments, in addition to air passages, the functional segments also have micropores, which are interconnected to form micro-air passages. It is understood that after the functional segment is formed, the gaps between its raw material components constitute micropores. These micropores are irregular and belong to the category of pores in a microscopic sense. The size of the micropores is determined by the gaps between the powder components after the powder is formed.

[0062] It should be noted that the airway pores mentioned above are pores in a macroscopic sense, while micropores are pores in a microscopic sense. The cross-sectional area of ​​an airway pore is much larger than that of a micropore, for example, at least 20 times larger.

[0063] The micro-airways are connected to the airway pores. Since the micro-airways are formed by the interconnection of micropores, the micropores are also connected to the airway pores. Furthermore, it can be understood that the interconnection between micropores can be partial, with some micropores not connected, or all micropores can be interconnected. A portion of the aerosol in the micro-airways can also be collected at the airway pores and delivered to the user's mouth under the negative pressure of suction. The airway pores help reduce the suction resistance for the user, improving the user experience. It should be noted that suction resistance is positively correlated with the flow resistance of the aerosol; the lower the flow resistance of the aerosol, the lower the perceived suction resistance, and vice versa.

[0064] In some embodiments, the pre-plug section and the filter section themselves have numerous micropores, which are interconnected to form micro-air channels.

[0065] In other exemplary embodiments, such as Figure 7 As shown, the filter section and / or pre-plug section of the functional segment do not have air passage holes, but only micropores. During the aerosol generation process, the generated aerosol can enter the micro-air passages of the functional segment. Under the negative pressure generated by suction, the aerosol is transported to the user through the micropores for inhalation. In addition, the flow of the aerosol through the micro-air passages also helps the functional segment capture some substances in the aerosol and can also play a role in cooling.

[0066] It should be noted that the matrix section included in the aerosol generating product is used to generate aerosols, while the filtration section, cooling section, support section, and fore-plug section do not generate aerosols.

[0067] In some embodiments, the filtration section, cooling section, and support section are all made of the composite material. Since the filtration section, cooling section, and support section primarily bear the heat from the high-temperature aerosol, including these parts in the composite material further enhances the effect of reducing the aerosol release temperature.

[0068] In some embodiments, based on the total mass of the composite material, the polymeric material comprises 55% to 97% by mass, and the inorganic non-metallic filler comprises 3% to 35% by mass. Exemplarily, the mass percentage of the polymeric material may be 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 97%, or any range of two such values, but is not limited thereto. Exemplarily, the mass percentage of the inorganic non-metallic filler may be 3%, 10%, 15%, 20%, 25%, 30%, 35%, or any range of two such values, but is not limited thereto.

[0069] In some embodiments, the inorganic non-metallic filler material comprises 30% to 35% of the total mass of the composite material. This is more conducive to improving the thermal stability and mechanical properties of the aerosol-generated articles.

[0070] In some embodiments, the polymer material is selected from one or more of polyethylene, polypropylene, high-temperature resistant silicone, epoxy resin, polycarbonate (PC), polyethylene terephthalate (PET), polybutylene terephthalate, polylactic acid (PLA), polycaprolactone, polyhydroxyalkanoates, polycyclohexanediol terephthalate, polyethylene terephthalate-1,4-cyclohexanediol terephthalate (PETG), polyimide, and polysulfone.

[0071] In some embodiments, the polymer material is selected from one or more of polycarbonate, polyethylene terephthalate, polyethylene terephthalate-1,4-cyclohexanediol, and epoxy resin. These materials possess excellent high-temperature resistance and mechanical strength, which is beneficial for improving the thermal stability and mechanical properties of aerosol-generated products.

[0072] In some embodiments, the inorganic non-metallic filler material is selected from one or more of calcium carbonate, talc, wollastonite, glass microspheres, mica powder, silica, clay, carbon fiber, silicon carbide, carbon black, and boron nitride.

[0073] In some embodiments, the inorganic non-metallic filler material is selected from one or more of calcium carbonate, talc, silica, and clay. The aforementioned inorganic non-metallic filler materials have better compatibility with polymer materials, which is beneficial to the thermal stability and mechanical properties of the aerosol-generated products.

[0074] In some embodiments, the average particle size of the inorganic non-metallic filler material is in the nanometer range. This is more conducive to increasing the bonding between the inorganic non-metallic filler material and the polymer material, and is beneficial to the thermal stability and mechanical properties of the aerosol-generated products.

[0075] In some embodiments, the composite material further includes a compatibilizer. The compatibilizer can improve the interfacial bonding performance between the inorganic non-metallic filler and the polymer material, thereby helping to more effectively transfer external stress to the inorganic non-metallic filler, reducing stress concentration in the matrix, and hindering crack propagation. For example, the compatibilizer may be γ-aminopropyltriethoxysilane, vinyltriethoxysilane, isopropyltris(dodecylbenzenesulfonyl)titanate, maleic anhydride-grafted polypropylene, maleic anhydride-grafted ethylene-octene copolymer (POE-g-MAH), styrene-ethylene / butene-styrene block copolymer, tricresyl phosphate, etc., but is not limited to these.

[0076] In some embodiments, the compatibilizer is one or more combinations of γ-aminopropyltriethoxysilane, isopropyltris(dodecylbenzenesulfonyl)titanate, and POE-g-MAH.

[0077] In some embodiments, the compatibilizer is present in a mass percentage of 1% to 5% based on the total mass of the composite material. Exemplarily, the mass percentage of the compatibilizer is 1%, 2%, 3%, 4%, 5%, or a range of any two values, but is not limited thereto.

[0078] In some embodiments, the composite material further includes an antioxidant and a lubricant. The antioxidant enhances the weather resistance of the composite material and extends its service life; the lubricant enhances the processing performance of the composite material and ensures the smooth operation of the extrusion process. Exemplarily, the antioxidant is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]. Exemplarily, the lubricant is calcium stearate.

[0079] The method for preparing aerosol-generated articles according to this application includes preparing a composite material; and preparing structural segments using the composite material. Exemplarily, the composite material is prepared by: mixing various polymeric materials, inorganic non-metallic fillers, and additives (such as compatibilizers, antioxidants, etc.) according to the proportions in the formula, and stirring until homogeneous; and adding the above-mentioned mixed materials into a melt extrusion device, adjusting the process parameters to perform extrusion granulation, and obtaining the composite material.

[0080] In some embodiments, the functional segments are all made of the composite material. For example, the structural segments are formed by molding the composite material through twin-screw extrusion, molding, or die casting. This simplifies the production process and reduces costs.

[0081] In some embodiments, the functional section includes a cooling section and a filtration section, which are integrally formed. This overcomes the problems of lint, residue, and difficulty in cleaning aerosol-generated products during suction. This improves the user experience.

[0082] In some embodiments, the functional segment includes a support segment, a cooling segment, and a filtering segment, wherein the support segment, the filtering segment, and the cooling segment are integrally formed.

[0083] In this application, the term "integrated molding" can be selected from extrusion molding, molding, or die casting. Extrusion molding refers to a processing method in which a raw material composition is added to an extruder, and the material is simultaneously heated and plasticized by the action between the extruder barrel and screw, and continuously pushed forward by the screw through the die head to form products or semi-finished products of various cross-sections. The functional components formed by extrusion molding are strip-shaped. Because the structural segment is an integral structure, it remains a unified medium after the aerosol-generated product is heated and absorbed or after heating ceases, preventing disintegration and falling off, thus reducing problems such as filament shedding, residue shedding, and difficulty in cleaning.

[0084] Example

[0085] The following describes embodiments of this application. The embodiments described below are exemplary and are only used to explain this application, and should not be construed as limiting this application. Where specific techniques or conditions are not specified in the embodiments, they are performed according to the techniques or conditions described in the literature in this field or according to the product instructions. Reagents or instruments used, unless otherwise specified, are all conventional products that can be obtained commercially.

[0086] Example 1

[0087] Preparation of composite materials

[0088] According to the mass fraction, 94 parts of PETG (number average molecular weight Mn of 30,000-60,000, weight average molecular weight Mw of 50,000-100,000, molecular weight distribution PDI of 1.6-2.0), 4 parts of nano silica, 1 part of POE-g-MAH, 0.5 parts of antioxidant 1010 (pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]) and 0.5 parts of calcium stearate were mixed and stirred until uniform, and then extruded and granulated through a twin-screw extruder to obtain the composite material.

[0089] The glass transition temperature (Tg) of the composite material was measured using a differential scanning calorimeter (TA Instruments, USA, model DSC25). g The detection method is as follows: the nitrogen flow rate is controlled at 40 ml / min, 5-10 mg of the sample to be tested is placed in a 60℃ drying oven and dried for 2 hours, then placed in an aluminum crucible for tableting, and the detection program is set as follows: -20℃ is kept at a constant temperature for 2 minutes, heated to 220℃ at a heating rate of 10℃ / min and kept at a constant temperature for 2 minutes, then cooled to -20℃ at a cooling rate of 10℃ / min and kept at a constant temperature for 2 minutes, and finally heated from -20℃ to 220℃ at a heating rate of 10℃, and the DSC curve is recorded.

[0090] The thermal decomposition temperature (T0) of this composite material was measured using thermogravimetric analysis (TA Instruments, USA, model TGA55). dThe detection method is as follows: place the sample to be tested in an 80℃ drying oven for 1 hour, take 10-20mg of sample and place it in the detection device, set the nitrogen flow rate to 40ml / min, the heating rate to 10℃ / min, and raise the temperature from room temperature to 700℃, and record the TGA curve.

[0091] The tensile strength of the composite material was tested using a CMT4204 universal testing machine in accordance with the GB / T 17037.1-1997 standard at a test rate of 50 mm / min.

[0092] Preparation of aerosol-generated products

[0093] The above-mentioned composite material was used for twin-screw extrusion with the following extrusion parameters: temperature 110℃±5℃, feed rate 1.8±0.2kg / h, screw speed 180±20rpm / min, and linear speed 1.0±0.2m / min. After extrusion, an integrally formed filter section and cooling section were obtained. These sections were then assembled with a matrix section disassembled from a commercially available aerosol-generated product (TEREA cigarette, purchased from IQOS ILUMA, model: SINNA) to obtain the aerosol-generated product.

[0094] Aerosol release temperature test

[0095] The above-mentioned aerosol generating product and aerosol generating device were combined and placed in a suction device (model X500E-L, manufacturer: PUFFMAN, suction capacity: 35mL for conventional suction, 55mL for deep suction; suction time: 2 seconds; suction interval: 30 seconds; suction curve: bell curve). The test module of the suction device was equipped with a temperature sensor. After the aerosol was generated, the temperature sensor captured the aerosol release temperature and transmitted it in real time. After the temperature reading stabilized, the aerosol release temperature was read.

[0096] Examples 2-6

[0097] Examples 2 and 3 were prepared using the same method as Example 1, except that the amounts of PETG, nano-silica, and POE-g-MAH were adjusted as shown in Table 1.

[0098] Examples 4-6 prepared composite materials using the same method as Example 1, except that nano-silica was replaced with calcium carbonate (800-1250 mesh), and the amounts of PETG and POE-g-MAH were adjusted, as shown in Table 1.

[0099] Then, in Examples 2-6, aerosol-generated articles were prepared using the same method as in Example 1.

[0100] Table 1

[0101]

[0102]

[0103] In Table 1, " / " indicates that the symbol does not exist.

[0104] Comparative Examples 1-4

[0105] The aerosol-generating product was prepared using the same method as in Example 1, with the only difference being:

[0106] In Comparative Example 1, the composite material was replaced with PETG;

[0107] In Comparative Example 2, the composite material was replaced with PET (number average molecular weight Mn of 20,000-50,000, weight average molecular weight Mw of 40,000-80,000, and molecular weight distribution PDI of 1.5-2.5).

[0108] In Comparative Example 3, the composite material was replaced with polylactic acid (number average molecular weight Mn of 50,000-150,000, weight average molecular weight Mw of 100,000-300,000, and molecular weight distribution PDI of 1.8-3.0).

[0109] In Comparative Example 4, the composite material was replaced with epoxy resin (Guangzhou Tongxin Chemical, CYD-011 / 014U).

[0110] For Examples 1-6 and Comparative Examples 1-4 above, the glass transition temperature, thermal decomposition temperature, tensile strength, and aerosol release temperature of the aerosol-generated articles were tested according to the methods described above. The test results are shown in Table 2 below.

[0111] Table 2

[0112]

[0113] As can be seen from the above data, compared with Comparative Example 1, where the functional segment material is PETG, the composite materials of PETG and nano-silica in Examples 1-3 of this application, and the composite materials of PETG and calcium carbonate in Examples 4-6 of this application, all reduced the aerosol release temperature while taking into account the thermal stability and mechanical properties of the aerosol-generated products.

[0114] Examples 7-9

[0115] In Example 7, 94 parts by weight of polycarbonate PC (number average molecular weight Mn of 25,000-50,000, weight average molecular weight Mw of 40,000-80,000, molecular weight distribution PDI of 1.8-2.2), 4 parts by weight of talc (400-1250 mesh talc), 1 part by weight of γ-aminopropyltriethoxysilane, 0.5 parts by weight of antioxidant 1010 and 0.5 parts by weight of calcium stearate were mixed and stirred until homogeneous, and then extruded and granulated through a twin-screw extruder to obtain the composite material.

[0116] In Examples 8 and 9, the composite materials were prepared using the same method as in Example 7, except that the amounts of PC, talc, and γ-aminopropyltriethoxysilane were adjusted as shown in Table 3.

[0117] Then, in Examples 7-9, aerosol-generated articles were prepared using the same method as in Example 1.

[0118] Comparative Example 5

[0119] Aerosol-generating articles were prepared using the same method as in Example 1, except that in Comparative Example 5, the composite material was replaced with PC (number-average molecular weight Mn of 25,000-50,000, weight-average molecular weight Mw of 40,000-80,000, and molecular weight distribution PDI of 1.8-2.2).

[0120] Table 3

[0121]

[0122] In Table 3, " / " indicates that the symbol does not exist.

[0123] For Examples 7-9 and Comparative Example 5 above, the glass transition temperature, thermal decomposition temperature, tensile strength, and aerosol release temperature of the aerosol-generated product were tested according to the method described above. The test results are shown in Table 4 below.

[0124] Table 4

[0125]

[0126] As can be seen from the above data, compared with Comparative Example 3, where the functional segment material is PC, the composite materials of Examples 7 to 9 of this application, which are composed of PC and talc, all reduce the aerosol release temperature of the aerosol-generated products while taking into account the thermal stability and mechanical properties of the aerosol-generated products.

[0127] Although this application has been described with reference to specific exemplary embodiments thereof, many different variations, modifications, etc., will become apparent to those skilled in the art. Through a study of the disclosure and the appended claims, those skilled in the art can understand and implement variations of the disclosed embodiments in practicing this application.

Claims

1. An aerosol-generating product, comprising structural segments, characterized in that, The structural segment includes: Matrix segments, including aerosol-generating matrices; and A functional segment is provided on at least one side of the matrix segment; The functional section includes one or more of a front plug section, a cooling section, a support section, and a filter section. One or more of the front plug section, the cooling section, the support section, and the filter section are made of composite materials, including polymer materials and inorganic non-metallic filler materials.

2. The aerosol-generating product according to claim 1, characterized in that, Based on the total mass of the composite material, the polymer material accounts for 55% to 97% of the mass, and the inorganic non-metallic filler material accounts for 3% to 35% of the mass.

3. The aerosol-generating product according to claim 1 or 2, characterized in that, The polymer material is selected from one or more of polyethylene, polypropylene, high-temperature resistant silicone, epoxy resin, polycarbonate, polyethylene terephthalate, polybutylene terephthalate, polylactic acid, polycaprolactone, polyhydroxyalkanoates, polycyclohexanediol terephthalate, polyethylene terephthalate-1,4-cyclohexanediol terephthalate, polyimide, and polysulfone.

4. The aerosol-generating product according to claim 3, characterized in that, The polymer material is selected from one or more of polycarbonate, polyethylene terephthalate, polyethylene terephthalate-1,4-cyclohexanediol ester, and epoxy resin.

5. The aerosol-generating article according to any one of claims 1 to 4, characterized in that, The inorganic non-metallic filler material is selected from one or more of the following: calcium carbonate, talc, wollastonite, glass microspheres, mica powder, silicon dioxide, clay, carbon fiber, silicon carbide, carbon black, and boron nitride.

6. The aerosol-generating product according to claim 5, characterized in that, The inorganic non-metallic filler material is selected from one or more of calcium carbonate, talc, silica, and clay.

7. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The composite material also includes a compatibilizer.

8. The aerosol-generating product according to claim 7, characterized in that, The compatibilizer has a mass percentage of 1% to 5% based on the total mass of the composite material.

9. The aerosol-generating article according to any one of claims 1 to 8, characterized in that, The composite material includes antioxidants and lubricants.

10. The aerosol-generating article according to any one of claims 1 to 9, characterized in that, The functional segment includes a cooling segment and a filtration segment, which are integrally formed; preferably, the functional segment includes a support segment, a cooling segment, and a filtration segment, which are integrally formed.

11. The aerosol-generating article according to any one of claims 1 to 10, characterized in that, The structural segment includes micropores; preferably, the structural segment further includes at least one air passage hole, the air passage hole penetrating at least one end of the structural segment along its length.

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