A wrapper for an aerosol generating article and an aerosol generating article

Abstract

This invention provides packaging paper for aerosol-generating articles, a method for preparing the same, and the aerosol-generating articles. The packaging paper for aerosol-generating articles comprises a base paper and a composite material uniformly distributed within the base paper. The composite material includes a two-dimensional nanomaterial substrate and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial substrate. The packaging paper for aerosol-generating articles according to this invention improves the air permeability of the packaging paper, thereby enhancing its thermal conductivity.

Description

Technical Field

[0001] This invention relates to the field of tobacco product technology, specifically to a packaging paper for aerosol-generating products, a method for preparing the same, and the aerosol-generating products. Background Technology

[0002] Aerosol-generating products mainly include tobacco products such as cigarettes, cigars, heated cigarettes, and e-cigarettes. These products generate aerosols by heating the tobacco raw material in the smoking section, which is then inhaled. Existing aerosol-generating products such as cigarettes and heated cigarettes typically have packaging paper, which mainly includes cigarette paper, forming paper, and tipping paper. In these aerosol-generating products, most of the tobacco raw material does not come into contact with the heating element; therefore, the heat transfer efficiency of the packaging paper plays a crucial role in smoke release and raw material utilization during inhalation.

[0003] Existing materials used to modify the thermal conductivity of packaging paper for aerosol-generated products mainly include metals, ceramics, or graphene. For example, patent application CN117243408A discloses the addition of fillers such as metal fillers, carbon-based fillers, and ceramic fillers in particulate form to a cellulose component for the preparation of cigarette packaging paper. However, during the papermaking process, the particulate thermally conductive materials have a certain impact on the air permeability of the packaging paper, and the application of metals to the packaging paper also poses certain risks to biosafety. Summary of the Invention

[0004] In view of this, the present invention provides a packaging paper for aerosol-generating products, a method for preparing the same, and an aerosol-generating product, which improves the thermal conductivity by improving the air permeability of the packaging paper.

[0005] To solve at least one of the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] According to a first aspect of the present invention, a packaging paper for an aerosol-generating article comprises a base paper and a composite material uniformly distributed within the base paper.

[0007] The composite material includes a two-dimensional nanomaterial substrate and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial substrate.

[0008] Furthermore, the non-silicon-based mesoporous material is mesoporous carbon or transition metal oxide.

[0009] Furthermore, the two-dimensional nanosheet substrate is one of graphene, boron nitride, and MXene.

[0010] Furthermore, the packaging paper is prepared by the following steps:

[0011] S1, providing a composite material, the composite material comprising a two-dimensional nanomaterial substrate and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial substrate;

[0012] S2 provides paper pulp;

[0013] S3, the composite material and binder are added to the paper pulp and mixed evenly to obtain a mixed pulp;

[0014] S4, the mixed slurry is formed into packaging paper for aerosol-generated products.

[0015] Furthermore, S1 specifically includes the following steps:

[0016] S1-1: Prepare a dispersion of two-dimensional nanosheet substrate;

[0017] S1-2: Prepare an emulsion of the non-silicon-based mesoporous material precursor prepolymer;

[0018] S1-3: Mix the emulsion of the two-dimensional nanosheet substrate dispersion and the non-silicon-based mesoporous material precursor prepolymer, add a pH adjuster, and sinter to obtain the composite material.

[0019] Furthermore, the two-dimensional nanosheet substrate dispersion includes one or more of graphene dispersion, boron nitride dispersion, and MXene dispersion.

[0020] Furthermore, the emulsion of the non-silicon-based mesoporous material precursor prepolymer contains a pore-expanding agent, which is a methylbenzene organic small molecule pore-expanding agent selected from one or more of xylene, mesitylene, cyclohexane, and fatty acids.

[0021] Furthermore, the non-silicon-based mesoporous material precursor prepolymer is selected from one or more of the following: hydrochloride, hydrobromide, hydroiodide, phosphate, nitrate, sulfate, hydrogen sulfate, formate, acetate, adipate, benzoate, benzenesulfonate, toluenesulfonate, methanesulfonate, citrate, camphorate, fumarate, gluconate, maleate, oxalate, salicylate, and tartrate.

[0022] Furthermore, the amine containing the catechol structure is a catecholamine, which is selected from one or more of dopamine, norepinephrine, and epinephrine;

[0023] The non-silicon-based mesoporous material precursor prepolymer is formed by prepolymerization of a non-silicon-based mesoporous material precursor, wherein the non-silicon-based mesoporous material precursor is polydopamine or a polydopamine analogue.

[0024] According to a second aspect of the present invention, an aerosol-generating article includes packaging paper as described in any of the embodiments of the first aspect above.

[0025] Furthermore, the aerosol generating product also includes an aerosol generating matrix and a cigarette holder.

[0026] Furthermore, the packaging paper surrounds at least a portion of the aerosol generating matrix, or the packaging paper surrounds at least a portion of both the aerosol generating matrix and the mouthpiece to secure the mouthpiece to the aerosol generating matrix.

[0027] A method for preparing packaging paper for aerosol-generating articles according to a third aspect embodiment of the present invention includes the following steps:

[0028] S1, providing a composite material, the composite material comprising a two-dimensional nanomaterial substrate and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial substrate;

[0029] S2 provides paper pulp;

[0030] S3, the composite material and binder are added to the paper pulp and mixed evenly to obtain a mixed pulp;

[0031] S4, the mixed slurry is formed into packaging paper for aerosol-generated products.

[0032] Furthermore, S1 specifically includes the following steps:

[0033] Prepare a dispersion of two-dimensional nanosheet substrate;

[0034] Prepare an emulsion of a non-silicon-based mesoporous material precursor prepolymer;

[0035] An emulsion of the two-dimensional nanosheet substrate dispersion and the non-silicon-based mesoporous material precursor prepolymer is mixed, a pH adjuster is added, and the mixture is sintered to obtain the composite material.

[0036] The above-described technical solution of the present invention has at least one of the following beneficial effects:

[0037] According to an embodiment of the present invention, a packaging paper for aerosol generation products has a composite material uniformly distributed inside the base paper. The composite material includes a two-dimensional nanomaterial and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial. The non-silicon-based mesoporous material contained in the composite material improves the internal air permeability of the base paper, thereby enhancing its thermal conductivity.

[0038] The method for preparing packaging paper for aerosol-generating products according to embodiments of the present invention involves adding a composite material including a two-dimensional nanomaterial and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial to papermaking pulp, and then forming the mixed pulp by uniform mixing to produce packaging paper for aerosol-generating products. The method is simple and reliable, with low cost, and can improve the air permeability of the prepared packaging paper, thereby enhancing its thermal conductivity.

[0039] The aerosol generating article according to an embodiment of the present invention includes the above-mentioned packaging paper, and the aerosol generating article containing such packaging paper can significantly improve thermal conductivity. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of packaging paper for aerosol-generating products according to an embodiment of the present invention;

[0041] Figure 2 This is a flowchart illustrating a method for preparing packaging paper for aerosol-generating products according to an embodiment of the present invention.

[0042] Figure 3 The thermal conductivity diagrams show the finished product obtained by the method for preparing packaging paper for aerosol generation products according to an embodiment of the present invention and the comparative example.

[0043] Figure reference numerals: 10. Base paper; 11. Composite material; 12. Non-silicon-based mesoporous material. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0045] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0046] The following section will first combine the appendix. Figure 1A detailed description of packaging paper for aerosol-generating articles according to embodiments of the present invention.

[0047] Packaging paper for aerosol-generating articles according to a first aspect embodiment of the present invention, such as Figure 1 As shown, it may include a base paper 10 and a composite material 11 evenly distributed inside the base paper 10.

[0048] The composite material 11 includes a two-dimensional nanomaterial and a non-silicon-based mesoporous material 12 formed on the two-dimensional nanomaterial.

[0049] In other words, the packaging paper for aerosol generation products of the present invention has a composite material 11 uniformly distributed inside the base paper 10. The composite material 11 includes a two-dimensional nanomaterial and a non-silicon-based mesoporous material 12 formed on the two-dimensional nanomaterial. The non-silicon-based mesoporous material 12 contained in the composite material 11 forms an internal structure that can improve the air permeability of the base paper 10 and thereby enhance its thermal conductivity.

[0050] Preferably, the non-silicon-based mesoporous material 12 is mesoporous carbon or a transition metal oxide.

[0051] Preferably, the two-dimensional nanosheet substrate is one of graphene, boron nitride, and MXene (transition metal carbide / nitride / carbonitride).

[0052] In some embodiments, such as Figure 2 As shown, the packaging paper for aerosol-generating products of the present invention is prepared by the following steps:

[0053] S1, providing a composite material 11, the composite material 11 including a two-dimensional nanomaterial substrate and a non-silicon-based mesoporous material 12 formed on the two-dimensional nanomaterial substrate;

[0054] S2 provides paper pulp;

[0055] S3, add composite material 11 and binder to paper pulp and mix them evenly to obtain mixed pulp;

[0056] S4, the mixed pulp is formed into packaging paper for aerosol-generated products.

[0057] In other embodiments, step S1 specifically includes the following steps:

[0058] S1-1: Prepare a dispersion of two-dimensional nanosheet substrate;

[0059] S1-2: Prepare an emulsion of the non-silicon-based mesoporous material precursor prepolymer;

[0060] S1-3: A mixture of two-dimensional nanosheet substrate dispersion and non-silicon-based mesoporous material precursor prepolymer emulsion is added to a pH (power of hydrogen, hydrogen ion concentration index) regulator and sintered to obtain composite material 11.

[0061] Preferably, the two-dimensional nanosheet substrate dispersion includes one or more of graphene dispersion, boron nitride dispersion, and MXene dispersion.

[0062] Preferably, the emulsion of the non-silicon-based mesoporous material precursor prepolymer contains a pore expander, which is a methylbenzene organic small molecule pore expander selected from one or more of xylene, mesitylene, cyclohexane, and fatty acids.

[0063] Preferably, the non-silicon-based mesoporous material precursor prepolymer is selected from one or more of the following: hydrochloride, hydrobromide, hydroiodide, phosphate, nitrate, sulfate, hydrogen sulfate, formate, acetate, adipate, benzoate, benzenesulfonate, toluenesulfonate, methanesulfonate, citrate, camphorate, fumarate, gluconate, maleate, oxalate, salicylate, and tartrate.

[0064] Preferably, the amine containing the catechol structure is a catecholamine, which is selected from one or more of dopamine, norepinephrine, and epinephrine.

[0065] Preferably, the non-silicon-based mesoporous material precursor prepolymer is formed by prepolymerization of a non-silicon-based mesoporous material precursor, wherein the non-silicon-based mesoporous material precursor is polydopamine or a polydopamine analogue.

[0066] According to a second aspect of the present invention, an aerosol generating article includes packaging paper for an aerosol generating article as described in any of the embodiments of the first aspect above.

[0067] Furthermore, the aerosol-generating article also includes an aerosol-generating matrix and a mouthpiece. Specifically, packaging paper surrounds at least a portion of the aerosol-generating matrix, or packaging paper surrounds at least a portion of both the aerosol-generating matrix and the mouthpiece to secure the mouthpiece to the aerosol-generating matrix. This results in better thermal conductivity.

[0068] The term "aerosol-forming matrix" refers to a substance capable of generating or releasing aerosols. An aerosol-forming matrix can be a solid aerosol-forming matrix. An aerosol-forming matrix may include tobacco-containing materials containing volatile tobacco flavor compounds released from the matrix upon heating. An aerosol-forming matrix may also include non-tobacco materials. An aerosol-forming matrix may include aerosol-forming agents. Aerosol-forming agents may include polyols such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate; and fatty acid esters of monocarboxylic acids, dicarboxylic acids, or polycarboxylic acids, such as at least one of dimethyl dodecanoate and dimethyl tetradecanoate. In embodiments where the aerosol forming matrix is ​​a solid aerosol forming matrix, the solid aerosol forming matrix may include one or more of the following: powder, granules, microspheres, fragments, tubes, strips, or flakes, containing one or more of the following: herbaceous plant leaves, tobacco leaves, tobacco rib sheets, reconstituted tobacco, homogenized tobacco, extruded tobacco, and expanded tobacco. The solid aerosol forming matrix may be in a loose form. The aerosol forming matrix may include rods of the solid aerosol forming matrix. Packaging material may encapsulate the rods of the solid aerosol forming matrix.

[0069] The aerosol-generating matrix can also be a paste, gel, slurry, liquid, or any combination thereof comprising solid, paste, gel, slurry, and liquid compounds. Preferably, the aerosol-generating matrix is ​​a solid or gel composition. The aerosol-generating matrix may preferably include nicotine.

[0070] The term "cigarette mouthpiece" is used herein to refer to a part of an aerosol-generating article designed to come into contact with a consumer's mouth. A cigarette mouthpiece may be a portion of an aerosol-generating article that may include a filter, or in some cases, a cigarette mouthpiece may be defined by the scope of a tip-on package.

[0071] A method for preparing packaging paper for aerosol-generating articles according to a third aspect embodiment of the present invention, such as... Figure 2 As shown, the following steps may be included:

[0072] S1, providing a composite material, the composite material comprising a two-dimensional nanomaterial substrate and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial substrate;

[0073] S2 provides paper pulp;

[0074] S3, the composite material and binder are added to the paper pulp and mixed evenly to obtain a mixed pulp;

[0075] S4, the mixed pulp is formed into packaging paper for aerosol-generated products.

[0076] In some other embodiments, step S1 may specifically include the following steps:

[0077] Prepare a dispersion of two-dimensional nanosheet substrate;

[0078] Prepare an emulsion of a non-silicon-based mesoporous material precursor prepolymer;

[0079] An emulsion of the two-dimensional nanosheet substrate dispersion and the non-silicon-based mesoporous material precursor prepolymer is mixed, a pH adjuster is added, and the mixture is sintered to obtain the composite material.

[0080] It should be noted that the materials selected in the preparation method of the packaging paper for aerosol-generating products in this embodiment of the invention are free of heavy metals, thus ensuring high biosafety when inhaling the aerosol-generating products made from the packaging paper of this invention. Furthermore, the packaging paper for aerosol-generating products in this embodiment of the invention is suitable for inhalation at temperatures ranging from 150 to 400°C.

[0081] The following describes, with reference to specific embodiments, the packaging paper for aerosol generation products prepared by the preparation method of the present invention.

[0082] Example 1: Packaging paper for aerosol-generating products made from assembled mesoporous carbon graphene oxide two-dimensional thermally conductive nanosheets.

[0083] First, dissolve 1.0 g of Pluronic F127 and 0.5 g of dopamine hydrochloride in 100 mL of an ethanol-water solution (ethanol to water volume ratio 1:1). After complete dissolution, add 2 mL of TMB (3,3',5,5'-tetramethylbenzidine) and stir until homogeneous. Add 5 mL of graphene oxide dispersion and 5 mL of concentrated ammonia, let stand for 24 hours, and then centrifuge to dry. Carbonize at 800 °C in a N2 atmosphere to obtain assembled mesoporous carbon graphene oxide two-dimensional thermally conductive nanosheets.

[0084] 20g of hardwood pulp was beaten to 60°SR (Steradian), and then 0.5g of guar gum, 1.0g of assembled mesoporous carbon graphene two-dimensional thermally conductive nanoparticles, and 5.0g of light calcium carbonate were added sequentially and stirred until homogeneous. The pulp was then formed into packaging paper using a paper machine and dried at 60°C for 1 hour to obtain packaging paper A1.

[0085] Example 2: Packaging paper for aerosol-generating products made from assembled mesoporous carbon boron nitride two-dimensional thermally conductive nanosheets.

[0086] First, dissolve 1.0 g of polyethylene glycol and 0.5 g of polystyrene in 100 mL of methanol-water solution (methanol to water volume ratio 1:1). After complete dissolution, add 2 mL of polyvinyl alcohol and stir until homogeneous. Add 5 mL of boron nitride dispersion and 5 mL of sodium bicarbonate aqueous solution, let stand for 24 hours, and then centrifuge to dry. Carbonize at 800 °C in a N2 atmosphere to obtain assembled mesoporous carbon boron nitride two-dimensional thermally conductive nanosheets.

[0087] 20g of hardwood pulp was beaten to 60°SR, and then 0.5g of kaolin, 1.0g of boron nitride two-dimensional thermally conductive nanosheets assembled with mesoporous carbon, and 5.0g of talc were added sequentially and stirred until homogeneous. The pulp was then formed into packaging paper using a paper machine and dried at 60°C for 1 hour to obtain packaging paper A2.

[0088] Example 3: Packaging paper for aerosol-generating products made from assembled mesoporous carbon titanium carbide two-dimensional thermally conductive nanosheets.

[0089] First, dissolve 1.0 g of sodium dodecylbenzenesulfonate and 0.5 g of polydopamine in 100 mL of isopropanol aqueous solution (isopropanol to water volume ratio 1:1). After complete dissolution, add 2 mL of cellulose and stir well. Add 5 mL of titanium carbide dispersion and 5 mL of sodium monohydrogen phosphate aqueous solution, let stand for 24 hours, and then centrifuge to dry. Carbonize at 800 °C in a N2 atmosphere to obtain assembled mesoporous carbon titanium carbide two-dimensional thermally conductive nanosheets.

[0090] 20g of hardwood pulp was beaten to 60°SR, and then 0.5g of sodium carboxymethyl cellulose, 1.0g of titanium carbide two-dimensional thermally conductive nanosheets assembled with mesoporous carbon, and 5.0g of titanium dioxide were added sequentially and stirred until homogeneous. The pulp was then formed into packaging paper using a paper machine and dried at 60°C for 1 hour to obtain A3 packaging paper.

[0091] Example 4: Packaging paper for aerosol-generating products made from a small quantity of assembled mesoporous carbon graphene oxide two-dimensional thermally conductive nanosheets.

[0092] First, dissolve 1.0 g of Pluronic F127 and 0.5 g of dopamine hydrochloride in 100 mL of an ethanol-water solution (ethanol to water volume ratio 1:1). After complete dissolution, add 2 mL of TMB (3,3',5,5'-tetramethylbenzidine) and stir until homogeneous. Add 5 mL of graphene oxide dispersion and 5 mL of concentrated ammonia, let stand for 24 hours, and then centrifuge to dry. Carbonize at 800 °C in a N2 atmosphere to obtain assembled mesoporous carbon graphene oxide two-dimensional thermally conductive nanosheets.

[0093] 20g of hardwood pulp was beaten to 60°SR, and then 0.5g of guar gum, 0.5g of graphene oxide two-dimensional thermally conductive nanoparticles assembled with mesoporous carbon, and 5.0g of light calcium carbonate were added sequentially and stirred evenly. The pulp was then formed into packaging paper using a paper machine and dried at 60°C for 1 hour to obtain A4 packaging paper.

[0094] Example 5: Packaging paper for aerosol-generating products made of assembled copper oxide and titanium carbide two-dimensional thermally conductive nanosheets.

[0095] First, 1.0 g of sodium dodecylbenzenesulfonate and 0.5 g of copper oxide were dispersed in 100 mL of an ethanol-water solution (ethanol to water volume ratio 1:1). After complete dissolution, 2 mL of TMB (3,3',5,5'-tetramethylbenzidine) was added and stirred until homogeneous. Then, 5 mL of titanium carbide dispersion and 5 mL of sodium monohydrogen phosphate aqueous solution were added. After standing for 24 hours, the mixture was centrifuged and dried. Carbonization was carried out at 800 °C in a N2 atmosphere to obtain assembled metallized titanium carbide two-dimensional thermally conductive nanosheets.

[0096] 20g of hardwood pulp was beaten to 60°SR, and then 0.5g of guar gum, 1.0g of titanium carbide two-dimensional thermally conductive nanoparticles assembled with copper oxide, and 5.0g of light calcium carbonate were added sequentially and stirred evenly. The pulp was then formed into packaging paper using a paper machine and dried at 60°C for 1 hour to obtain A5 packaging paper.

[0097] Example 6: Packaging paper for aerosol-generating products using assembled zinc oxide and boron nitride two-dimensional thermally conductive nanosheets.

[0098] First, 1.0 g of sodium dodecylbenzenesulfonate and 0.5 g of zinc oxide were dispersed in 100 mL of methanol-water solution (ethanol to water volume ratio 1:1). After complete dissolution, 2 mL of TMB (3,3',5,5'-tetramethylbenzidine) was added and stirred until homogeneous. Then, 5 mL of boron nitride dispersion and 5 mL of concentrated ammonia were added, and the mixture was allowed to stand for 24 hours before centrifugation and drying. The mixture was then carbonized at 800 °C under a N2 atmosphere to obtain assembled metallized boron nitride two-dimensional thermally conductive nanosheets.

[0099] 20g of hardwood pulp was beaten to 60°SR, and then 0.5g of sodium carboxymethyl cellulose, 1.0g of boron nitride two-dimensional thermally conductive nanoparticles assembled with zinc oxide, and 5.0g of light calcium carbonate were added sequentially and stirred evenly. The pulp was then formed into packaging paper using a paper machine and dried at 60°C for 1 hour to obtain A6 packaging paper.

[0100] Comparative Example 1: The base paper does not contain packaging paper that meets the material requirements.

[0101] 20g of hardwood pulp board was beaten to 60°SR, and 0.5g of guar gum and 5.0g of light calcium carbonate filler were added sequentially and stirred evenly. The pulp was then formed into packaging paper using a paper machine and dried at 60°C for 1 hour to obtain packaging paper B1.

[0102] Reference Figure 3 It can be seen that the thermal conductivity of the packaging paper for aerosol generation products prepared by the preparation method of the present invention, namely the finished products of Examples 1, 2, 3, 4, 5 and 6, are 0.249, 0.193, 0.164, 0.152, 0.132 and 0.114, respectively, which is a significant improvement compared to the thermal conductivity of 0.061 of the finished product of Comparative Example 1. In comparison, among the six embodiments, the packaging paper for aerosol-generating products prepared by assembling mesoporous carbon graphene oxide two-dimensional thermally conductive nanosheets in Embodiment 1 has a more significant improvement in thermal conductivity. Furthermore, compared to Embodiment 4, the use of a larger quantity of assembled mesoporous carbon graphene oxide two-dimensional thermally conductive nanosheets results in a more significant improvement in the thermal conductivity of the packaging paper. Embodiment 2 uses assembled mesoporous carbon boron nitride two-dimensional thermally conductive nanosheets for aerosol-generating products; Embodiment 3 uses assembled mesoporous carbon titanium carbide two-dimensional thermally conductive nanosheets for aerosol-generating products; Embodiment 5 uses assembled copper oxide titanium carbide two-dimensional thermally conductive nanosheets for aerosol-generating products; and Embodiment 6 uses assembled zinc oxide boron nitride two-dimensional thermally conductive nanosheets for aerosol-generating products. Compared to Embodiments 5 and 6, the packaging paper prepared by assembling mesoporous carbon in Embodiments 2 and 3 has a higher thermal conductivity than the packaging paper prepared by assembling metallization.

[0103] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A packaging paper for aerosol-generating products, characterized in that, Includes a base paper and a composite material evenly distributed within the base paper. The composite material includes a two-dimensional nanomaterial substrate and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial substrate.

2. The packaging paper according to claim 1, characterized in that, The non-silicon-based mesoporous material is mesoporous carbon or transition metal oxide.

3. The packaging paper according to claim 1, characterized in that, The two-dimensional nanosheet substrate is one of graphene, boron nitride, and MXene.

4. The packaging paper according to claim 1, characterized in that, The packaging paper is prepared by the following steps: S1, providing a composite material, the composite material comprising a two-dimensional nanomaterial substrate and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial substrate; S2 provides paper pulp; S3, the composite material and binder are added to the paper pulp and mixed evenly to obtain a mixed pulp; S4, the mixed slurry is formed into packaging paper for aerosol-generated products.

5. The packaging paper according to claim 4, characterized in that, S1 specifically includes the following steps: S1-1: Prepare a dispersion of two-dimensional nanosheet substrate; S1-2: Prepare an emulsion of the non-silicon-based mesoporous material precursor prepolymer; S1-3: Mix the emulsion of the two-dimensional nanosheet substrate dispersion and the non-silicon-based mesoporous material precursor prepolymer, add a pH adjuster, and sinter to obtain the composite material.

6. The packaging paper according to claim 5, characterized in that, The two-dimensional nanosheet substrate dispersion includes one or more of graphene dispersion, boron nitride dispersion, and MXene dispersion.

7. The packaging paper according to claim 5, characterized in that, The emulsion of the non-silicon-based mesoporous material precursor prepolymer contains a pore-expanding agent, which is a methylbenzene organic small molecule pore-expanding agent selected from one or more of xylene, mesitylene, cyclohexane, and fatty acids.

8. The packaging paper according to claim 5, characterized in that, The non-silicon-based mesoporous material precursor prepolymer is selected from one or more of the following: hydrochloride, hydrobromide, hydroiodide, phosphate, nitrate, sulfate, hydrogen sulfate, formate, acetate, adipate, benzoate, benzenesulfonate, toluenesulfonate, methanesulfonate, citrate, camphorate, fumarate, gluconate, maleate, oxalate, salicylate, and tartrate.

9. The packaging paper according to claim 8, characterized in that, The amine containing the catechol structure is a catechol amine, and the catechol amine is selected from one or more of dopamine, norepinephrine and epinephrine; The non-silicon-based mesoporous material precursor prepolymer is formed by prepolymerization of a non-silicon-based mesoporous material precursor, wherein the non-silicon-based mesoporous material precursor is polydopamine or a polydopamine analogue.

10. An aerosol-generating product, characterized in that, Includes the packaging paper as described in claims 1-9.

11. The aerosol-generating article according to claim 10, characterized in that, It also includes aerosol generation matrix and mouthpiece; The packaging paper surrounds at least a portion of the aerosol generating matrix, or the packaging paper surrounds at least a portion of both the aerosol generating matrix and the mouthpiece to secure the mouthpiece to the aerosol generating matrix.

12. A method for preparing packaging paper for aerosol-generating products, comprising the following steps: S1, providing a composite material, the composite material comprising a two-dimensional nanomaterial substrate and a non-silicon-based mesoporous material formed on the two-dimensional nanomaterial substrate; S2 provides paper pulp; S3, the composite material and binder are added to the paper pulp and mixed evenly to obtain a mixed pulp; S4, the mixed slurry is formed into packaging paper for aerosol-generated products.

13. The preparation method according to claim 12, characterized in that, S1 specifically includes the following steps: Prepare a dispersion of two-dimensional nanosheet substrate; Prepare an emulsion of a non-silicon-based mesoporous material precursor prepolymer; An emulsion of the two-dimensional nanosheet substrate dispersion and the non-silicon-based mesoporous material precursor prepolymer is mixed, a pH adjuster is added, and the mixture is sintered to obtain the composite material.

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