CN114532589A - Heat-conducting slow-release essence and cigarette product - Google Patents
Heat-conducting slow-release essence and cigarette product Download PDFInfo
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- CN114532589A CN114532589A CN202210262969.0A CN202210262969A CN114532589A CN 114532589 A CN114532589 A CN 114532589A CN 202210262969 A CN202210262969 A CN 202210262969A CN 114532589 A CN114532589 A CN 114532589A
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- Prior art keywords
- slow
- boron nitride
- release
- hexagonal boron
- polysaccharide
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Links
- 235000019504 cigarettes Nutrition 0.000 title abstract description 24
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 97
- 229910052582 BN Inorganic materials 0.000 claims abstract description 86
- 150000004676 glycans Chemical class 0.000 claims abstract description 56
- 229920001282 polysaccharide Polymers 0.000 claims abstract description 56
- 239000005017 polysaccharide Substances 0.000 claims abstract description 56
- 239000000126 substance Substances 0.000 claims abstract description 56
- 238000000498 ball milling Methods 0.000 claims description 22
- 235000010489 acacia gum Nutrition 0.000 claims description 10
- 125000000524 functional group Chemical group 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 6
- 229920001661 Chitosan Polymers 0.000 claims description 6
- 229920002907 Guar gum Polymers 0.000 claims description 6
- 229940045110 chitosan Drugs 0.000 claims description 6
- 239000000665 guar gum Substances 0.000 claims description 6
- 235000010417 guar gum Nutrition 0.000 claims description 6
- 229960002154 guar gum Drugs 0.000 claims description 6
- 235000010413 sodium alginate Nutrition 0.000 claims description 6
- 239000000661 sodium alginate Substances 0.000 claims description 6
- 229940005550 sodium alginate Drugs 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 claims description 4
- 229920001817 Agar Polymers 0.000 claims description 4
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 239000008272 agar Substances 0.000 claims description 4
- 235000010419 agar Nutrition 0.000 claims description 4
- POIARNZEYGURDG-UHFFFAOYSA-N beta-damascenone Natural products CC=CC(=O)C1=C(C)C=CCC1(C)C POIARNZEYGURDG-UHFFFAOYSA-N 0.000 claims description 4
- 229940093503 ethyl maltol Drugs 0.000 claims description 4
- 229940041616 menthol Drugs 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 230000000391 smoking effect Effects 0.000 claims description 4
- 238000013268 sustained release Methods 0.000 claims description 4
- 239000012730 sustained-release form Substances 0.000 claims description 4
- 229920000084 Gum arabic Polymers 0.000 claims description 3
- 239000000205 acacia gum Substances 0.000 claims description 3
- RHDGNLCLDBVESU-UHFFFAOYSA-N but-3-en-4-olide Chemical compound O=C1CC=CO1 RHDGNLCLDBVESU-UHFFFAOYSA-N 0.000 claims description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 3
- 239000001674 (E)-1-(2,6,6-trimethyl-1-cyclohexenyl)but-2-en-1-one Substances 0.000 claims description 2
- BGTBFNDXYDYBEY-UHFFFAOYSA-N 1-(2,6,6-trimethylcyclohexen-1-yl)but-2-en-1-one Chemical compound CC=CC(=O)C1=C(C)CCCC1(C)C BGTBFNDXYDYBEY-UHFFFAOYSA-N 0.000 claims description 2
- BGTBFNDXYDYBEY-FNORWQNLSA-N 4-(2,6,6-Trimethylcyclohex-1-enyl)but-2-en-4-one Chemical compound C\C=C\C(=O)C1=C(C)CCCC1(C)C BGTBFNDXYDYBEY-FNORWQNLSA-N 0.000 claims description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 2
- 229940023476 agar Drugs 0.000 claims description 2
- 238000010296 bead milling Methods 0.000 claims description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- CBOQJANXLMLOSS-UHFFFAOYSA-N ethyl vanillin Chemical group CCOC1=CC(C=O)=CC=C1O CBOQJANXLMLOSS-UHFFFAOYSA-N 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 2
- 150000001299 aldehydes Chemical class 0.000 claims 1
- 238000007580 dry-mixing Methods 0.000 claims 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000004132 cross linking Methods 0.000 abstract description 7
- 230000004048 modification Effects 0.000 abstract description 7
- 238000012986 modification Methods 0.000 abstract description 7
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 239000000686 essence Substances 0.000 description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 230000014759 maintenance of location Effects 0.000 description 20
- 239000000463 material Substances 0.000 description 18
- 239000007788 liquid Substances 0.000 description 17
- 239000008367 deionised water Substances 0.000 description 16
- 229910021641 deionized water Inorganic materials 0.000 description 16
- 239000003205 fragrance Substances 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 14
- 239000000047 product Substances 0.000 description 14
- 241000208125 Nicotiana Species 0.000 description 13
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 13
- 239000006185 dispersion Substances 0.000 description 12
- 239000002304 perfume Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- 238000007789 sealing Methods 0.000 description 10
- 238000005406 washing Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 239000000796 flavoring agent Substances 0.000 description 8
- 235000019634 flavors Nutrition 0.000 description 8
- 239000001785 acacia senegal l. willd gum Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003094 microcapsule Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 239000012065 filter cake Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000011068 loading method Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000000967 suction filtration Methods 0.000 description 5
- 238000001291 vacuum drying Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910021389 graphene Inorganic materials 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 125000003172 aldehyde group Chemical group 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 150000002772 monosaccharides Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- YIKYNHJUKRTCJL-UHFFFAOYSA-N Ethyl maltol Chemical group CCC=1OC=CC(=O)C=1O YIKYNHJUKRTCJL-UHFFFAOYSA-N 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- POIARNZEYGURDG-FNORWQNLSA-N beta-damascenone Chemical group C\C=C\C(=O)C1=C(C)C=CCC1(C)C POIARNZEYGURDG-FNORWQNLSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 125000000468 ketone group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002135 nanosheet Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 2
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical group COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 2
- 235000012141 vanillin Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 229930007850 β-damascenone Natural products 0.000 description 2
- 244000215068 Acacia senegal Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 240000007472 Leucaena leucocephala Species 0.000 description 1
- 235000010643 Leucaena leucocephala Nutrition 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000002016 disaccharides Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000003844 furanonyl group Chemical group 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000012038 nucleophile Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
Classifications
-
- 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
- A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Fats And Perfumes (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention provides a heat-conducting type slow-release essence and a cigarette product, wherein the slow-release essence is formed by solidifying a slow-release carrier and a fragrant substance loaded and/or associated with the slow-release carrier; wherein the slow release carrier comprises polysaccharide modified hexagonal boron nitride. In the application, polysaccharide modification is carried out on hexagonal boron nitride, so that the prepared hexagonal boron nitride surface contains polysaccharide, in-situ solidification of the hexagonal boron nitride is realized through self-crosslinking of the polysaccharide, and the hexagonal boron nitride is introduced into a slow-release carrier, so that the prepared carrier has good heat-conducting property; the aroma substances can be loaded on a network structure formed by the polysaccharide and can also be physically or chemically adsorbed on the hexagonal boron nitride, so that the slow release effect is met and the aroma release rate of the essence is improved.
Description
Technical Field
The invention belongs to the field of slow-release essence for cigarettes, and particularly relates to heat-conducting slow-release essence and a cigarette product.
Background
The flavor and fragrance added into the filter stick can improve the smoking taste of cigarettes, optimize the physical and chemical properties of smoke, moisten fragrance, modify the fragrance of the smoke, improve the smoking taste, determine the style of products, influence the smell, taste and touch of consumers to a certain extent and improve the acceptability of the products. The tobacco flavor can be added into the filter stick in various ways, such as glycerol flavoring, tow flavoring, flavoring particles, flavor bead blasting and the like. However, if the perfume is directly added into glycerin, silk or packaging materials, part of volatile essence can volatilize in production, storage and transportation, so that the application range of the perfume is greatly limited.
In order to solve the problem, people use a stable high polymer material as a wall material, and embed essence in a microcapsule shell, so that the property of the microcapsule shell is more stable, and the use limit of the microcapsule shell is reduced. The wall material has the characteristics of no hydrophilicity, strong film forming stability, difficult decomposition, easy crosslinking and the like, so that the prepared microencapsulated essence has small particle size and uniform distribution, and the wall material cannot become nutrient substances required by the growth of microorganisms and is difficult to be polluted or decomposed by the microorganisms. But the common low-toxicity cross-linking agents such as glutaraldehyde and the like are easy to remain in the product in the manufacturing process of the essence microcapsule; the wall material is difficult to biodegrade in natural environment, the particle size is small, when a product containing the synthetic polymer and the resin particles is used, the particles cannot be completely filtered due to the limited sewage treatment level at present, and the residual microcapsules can exist in soil and water for a long time after being discharged into various water systems such as rivers, oceans and the like or soil through a sewer, so that the growth of animals and plants and the health of human bodies are damaged.
In recent years, the development of tobacco which is not combusted by heating has been a hot spot, and the tobacco requires the perfume to be rapidly released at a relatively low temperature. For example, Chinese patent CN110477436A discloses a preparation method and application of a sustained-release particle of tobacco essence. The invention is based on the existing tobacco essence raw materials, by fusing the tobacco essence into the solid-phase particles, the moderate release of the aroma substances is formed, so that the bad stimulation caused by the whole essence is stabilized, the difference of the former weight and the later weight caused in the sensory strain process is relieved, and the prepared slow-release particles can better volatilize the aroma of the tobacco essence stably and mildly and are suitable for different tobacco products.
In the prior art, the stationary phase carrier for loading the perfume is usually a high molecular material, but the heat conductivity of the high molecular material is usually poor, so that the perfume cannot be completely released at a working temperature when the stationary phase carrier is used as the perfume carrier, the perfume release rate is relatively slow, the smoke fragrance is not strong enough, and the use efficiency of the perfume is reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a heat-conducting slow-release essence and a cigarette product. The prepared slow-release essence has good heat-conducting property, so that the slow-release effect is met, and the fragrance release rate of the essence is improved.
In the prior art, a loading system of flavors and fragrances is widely researched, and the loading of a slow release carrier on fragrances is generally focused, for example, a high molecular material is prepared into a porous material or a mesh framework material is prepared as a carrier for adsorbing fragrances, or microcapsules are prepared for wrapping fragrances and the like. However, the above means have limitations that the adsorbed or coated flavor is not controllable in flavor release effect when used in a low-temperature heating non-combustible cigarette, and problems such as incomplete flavor release, too slow or too fast flavor release, and the like may occur.
Based on the above, the inventor of the present application creatively proposes to introduce hexagonal boron nitride with high thermal conductivity to the perfume carrier, so that the prepared slow-release essence has thermal conductivity, and further, the perfume release rate is improved. However, the solubility of hexagonal boron nitride is poor, and agglomeration occurs when the hexagonal boron nitride is added in the form of a dispersion or powder, which causes a problem of non-uniform heat conduction. Through continuous research and experiments of the inventor, the polysaccharide modified hexagonal boron nitride is unexpectedly found to have good solubility, and the polysaccharide modified hexagonal boron nitride can be directly used as a main phase material of a carrier for loading perfume without losing the original thermal conductivity.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the invention provides a heat-conducting slow-release essence which is formed by solidifying a slow-release carrier and a fragrant substance loaded and/or associated with the slow-release carrier; wherein the slow release carrier comprises polysaccharide modified hexagonal boron nitride.
Boron Nitride (BN) has the same structure as the isomeric materials of many carbons, such as hexagonal boron nitride (h-BN), cubic boron nitride (c-BN). The hexagonal boron nitride (h-BN) has a layered structure similar to graphene, is a hexagonal structure formed by alternately arranging B and N, has strong B-N bonds, and is combined by Van der Waals force between layers.
Hexagonal boron nitride has such excellent properties, but its lamellar thickness, chemical inertness are too high, and poor solubility limits its application, and if it is added directly to the carrier of the aroma substance, it will cause uneven distribution, so it is important and critical to exfoliate hexagonal boron nitride to improve its solubility. Saccharides, also known as carbohydrates, are a general term for polyhydroxyaldehydes or polyhydroxyketones and polycondensates and certain derivatives thereof. The saccharide substances are mainly classified into monosaccharides, disaccharides and polysaccharides. Polysaccharides are polymers formed by connecting monosaccharides together in various ways, and the surfaces of the polysaccharides contain functional groups such as aldehyde groups, hydroxyl groups, ketone groups and the like of monosaccharides. Moreover, the biological polysaccharide is a safe and nontoxic natural product, and is not suitable to be added into cigarettes as a partial carrier of the spice. Therefore, the polysaccharide is used for modifying the hexagonal boron nitride, so that the water solubility of the hexagonal boron nitride can be increased, the hexagonal boron nitride is introduced into a carrier of a fragrant substance, and the original adsorption and heat conduction properties of the hexagonal boron nitride are not changed, so that the slow-release essence with good heat conduction performance is prepared.
In the invention, "curing" refers to a process of dehydrating a material under certain temperature and humidity conditions and shaping the material into a uniform porous solid, wherein the process is accompanied by the formation of covalent bonds, hydrogen bonds or ionic bonds and the crosslinking of chains.
The polysaccharide modified hexagonal boron nitride can be prepared by various methods, and preferably, the polysaccharide modified hexagonal boron nitride is obtained by mixing polysaccharide and hexagonal boron nitride in a dry method under the action of mechanical force, namely, hexagonal boron nitride powder and polysaccharide are uniformly mixed and are peeled under the action of mechanical force to form the polysaccharide modified hexagonal boron nitride. In addition, wet modification can also be adopted, for example, the hexagonal boron nitride raw material and the polysaccharide are mixed and then heated to be molten, and the molten polysaccharide is used as a solvent to react under stirring; or adding the hexagonal boron nitride and the polysaccharide into a solvent, and grafting the polysaccharide on the hexagonal boron nitride by using ultrasonic waves, wherein the solvent can be water, ethanol and the like.
Preferably, the mass ratio of the polysaccharide to the hexagonal boron nitride is (4-55): (1 to 4) such as 1:1, 4:1, 20:3, 50:1, 55:4, etc. The dosage of the polysaccharide is too small, and the modification is incomplete; too much consumption can cause the waste of raw materials, which is not beneficial to saving the cost.
Preferably, the mechanical force is at least one of ball milling, sand milling, bead milling, vibration milling, grinding and air flow impact. And peeling the hexagonal boron nitride into polysaccharide modified hexagonal boron nitride nanosheets by mechanical action force so as to increase the dispersity and specific surface area of the hexagonal boron nitride nanosheets.
Preferably, the mass ratio of the aroma substance to the slow-release carrier is (1-10): (10-25), for example, 1:1, 1:10, 1:25, 3:10, 4:15, 5:23, 10:25, etc. The fragrance is not strong due to too small addition amount of the fragrant substances, and the smoking taste is influenced; excessive addition can cause incomplete fragrance release and waste of raw materials.
In the present invention, the hexagonal boron nitride modified with the polysaccharide preferably has a plate diameter of 2 to 30 μm, for example, 2 μm, 5 μm, 15 μm, 20 μm, 25 μm, 30 μm, or the like. Too large or too small a flake diameter of the modified hexagonal boron nitride affects the dispersibility thereof or the adsorption of the aroma substance.
Preferably, the polysaccharide is one or more of acacia, agar, sodium alginate, guar gum, chitosan and sodium carboxymethyl cellulose. Functional groups such as aldehyde groups, hydroxyl groups, ketone groups and carboxyl groups on the polysaccharide can be grafted to the surface or the edge of the hexagonal boron nitride to obtain the polysaccharide modified hexagonal boron nitride, and the polysaccharide can be cured to form gel, so that the modified hexagonal boron nitride can be cured and molded without an additional thickener, and the hexagonal boron nitride is inserted into a network structure formed by polysaccharide crosslinking on the surface of the hexagonal boron nitride so as to realize uniform distribution.
In order to increase the loading amount of the fragrant substance, it is preferable in the present invention that the functional group of the fragrant substance is one or more of a hydroxyl group, an aldehyde group, a carbonyl group, a carboxyl group, and an amino group. The hexagonal boron nitride has a hexagonal structure formed by alternately arranging B and N, and the B-N bonds on the sheet layers of the hexagonal boron nitride have the characteristic of partial ionic bonds, wherein B atoms have positive charges and can be combined with electron-rich nucleophiles, and N atoms have negative charges and can react with electron-deficient electrophilic groups, so that the hexagonal boron nitride has the characteristics of Lewis acid and alkali, and therefore, the polysaccharide can modify the hexagonal boron nitride in the forms of covalent bonds and hydrogen bonds and can form ionic bonds with the hexagonal boron nitride in the forms of acid and alkali so as to achieve the modification effect. The modified hexagonal boron nitride is stripped to be in a sheet shape, the specific surface area is increased, and a large amount of polysaccharide is loaded on the surface or the edge of the modified hexagonal boron nitride, so that the aroma substance can be bonded or associated to the polysaccharide modified hexagonal boron nitride through a surface functional group or acid-base, and can also be loaded in a network structure formed by polysaccharide crosslinking.
Preferably, the aroma-forming substance is one or more of furanone, menthol, vanillin, ethyl maltol, beta-damascone and damascone.
On the other hand, the invention also provides a cigarette product which comprises the heat-conducting slow-release essence provided by the invention.
According to the method, covalent bonds, hydrogen bonds, ionic bonds and pi-pi acting forces are formed between functional groups such as hydroxyl groups on the polysaccharide and the hexagonal boron nitride, so that the hexagonal boron nitride is stripped and modified, and polysaccharide modified hexagonal boron nitride is obtained; polysaccharide on the modified hexagonal boron nitride can be crosslinked and cured to form a net structure, so that the modified hexagonal boron nitride not only serves as a carrier to load a large amount of aroma substances, but also forms chemical bonds with functional groups on the surfaces of the aroma substances, so that the modified hexagonal boron nitride has a stronger adsorption effect on the aroma substances, is not easy to fall off, and realizes a slow release effect. Meanwhile, the hexagonal boron nitride is uniformly introduced into the carrier, the heat conduction performance of the carrier is improved, and the aroma release rate of the aroma substances at the working temperature of heating the non-combustible cigarette is accelerated.
Compared with the prior art, the invention has the beneficial effects that:
in the application, polysaccharide modification is carried out on hexagonal boron nitride, so that the prepared hexagonal boron nitride surface contains polysaccharide, in-situ solidification of the hexagonal boron nitride is realized through self-crosslinking of the polysaccharide, and the hexagonal boron nitride is introduced into a slow-release carrier, so that the prepared carrier has good heat-conducting property; the aroma substances can be loaded on a network structure formed by the polysaccharide and can also be physically or chemically adsorbed on the hexagonal boron nitride, so that the slow release effect is met and the aroma release rate of the essence is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that in order to improve the solidification degree and solidification efficiency of the sustained-release carrier, additional polysaccharide may be added after the polysaccharide-modified hexagonal boron nitride is dissolved in the preparation process of the sustained-release essence of the embodiment of the present invention.
In the following examples, hexagonal boron nitride powder was purchased from Nogao New materials development Co., Ltd, and the particle size was 30 μm, and the remaining reagents were purchased from the national pharmaceutical group.
Example 1
A heat-conducting slow-release essence is prepared by the following steps:
(the polysaccharide is acacia gum, and the aroma substance is menthol)
(1) Uniformly mixing hexagonal boron nitride powder and Arabic gum according to the mass ratio of 1:55, adding the mixture into a 80ml nylon ball milling tank, adding agate balls with the diameter of 5mm, wherein the ball-material ratio is 50:1, sealing the ball milling tank, and carrying out ball milling on a QM-3SP2 planetary ball mill for 24 hours at the speed of 500rpm/min after sealing. After ball milling, dissolving the obtained powder in 100ml of deionized water, carrying out ultrasonic washing, carrying out suction filtration, repeatedly washing and filtering the obtained filter cake for 3 times, using 100ml of deionized water each time, carrying out vacuum drying on the cleaned solid at 60 ℃ for 12 hours, and grinding to obtain hexagonal boron nitride modified by Arabic gum with the sheet diameter of 30 microns;
(2) adding 25 parts by mass of hexagonal boron nitride modified by Arabic gum into 100ml of deionized water, and ultrasonically dispersing in a water bath for 1.5 hours to obtain a dispersion A;
(3) heating and melting 10 parts by mass of menthol to obtain a molten liquid B;
(4) and adding the molten liquid B into the dispersion liquid A, stirring to be uniformly mixed, pouring into a mold, naturally cooling to room temperature, solidifying and demolding to obtain the heat-conducting slow-release essence.
The heat-conducting slow-release essence prepared in the embodiment is added into tobacco shreds, filter sticks or cigarette paper by adopting the technology known by the technicians in the field to prepare cigarette products.
Example 2
A heat-conducting slow-release essence is prepared by the following steps:
(the polysaccharide is agar, and the aroma substance is furanone)
(1) Uniformly mixing hexagonal boron nitride powder and agar according to the mass ratio of 4:55, adding the mixture into a 80ml nylon ball milling tank, adding agate balls with the diameter of 5mm, wherein the ball-material ratio is 50:1, sealing the ball milling tank, and carrying out ball milling on a QM-3SP2 planetary ball mill for 24 hours at the speed of 500rpm/min after sealing. After ball milling, dissolving the obtained powder in 100ml of deionized water, carrying out ultrasonic washing, carrying out suction filtration, repeatedly washing and filtering the obtained filter cake for 3 times, using 100ml of deionized water each time, carrying out vacuum drying on the cleaned solid at 60 ℃ for 12 hours, and grinding to obtain the agar-modified hexagonal boron nitride tablet with the particle size of 25 micrometers;
(2) adding 25 parts by mass of the agar-modified hexagonal boron nitride into 100ml of deionized water, and ultrasonically dispersing in a water bath for 1.5 hours to obtain a dispersion A;
(3) heating and melting 1 part by mass of furanone to obtain a molten liquid B;
(4) and adding the molten liquid B into the dispersion liquid A, stirring to be uniformly mixed, pouring into a mold, naturally cooling to room temperature, solidifying and demolding to obtain the heat-conducting slow-release essence.
The heat-conducting slow-release essence prepared in the embodiment is added into tobacco shreds, filter sticks or cigarette paper by adopting the technology known by the technicians in the field to prepare cigarette products.
Example 3
A heat-conducting slow-release essence is prepared by the following steps:
(the polysaccharide is guar gum, and the aromatic substance is vanillin)
(1) Uniformly mixing hexagonal boron nitride powder and guar gum according to the mass ratio of 1:1, adding the mixture into a 80ml nylon ball milling tank, adding agate balls with the diameter of 5mm, wherein the ball-material ratio is 50:1, sealing the ball milling tank, and carrying out ball milling on a QM-3SP2 planetary ball mill for 24 hours at the speed of 500rpm/min after sealing. After ball milling, dissolving the obtained powder in 100ml of deionized water, carrying out ultrasonic washing, carrying out suction filtration, repeatedly washing and filtering the obtained filter cake for 3 times, using 100ml of deionized water each time, carrying out vacuum drying on the cleaned solid at 60 ℃ for 12 hours, and grinding to obtain the guar gum modified hexagonal boron nitride with the sheet diameter of 2 microns;
(2) adding 10 parts by mass of the guar gum modified hexagonal boron nitride into 100ml of deionized water, and ultrasonically dispersing in a water bath for 1.5 hours to obtain a dispersion A;
(3) heating and melting 1 part by mass of vanillin to obtain a molten liquid B;
(4) and adding the molten liquid B into the dispersion liquid A, stirring to be uniformly mixed, pouring into a mold, naturally cooling to room temperature, solidifying and demolding to obtain the heat-conducting slow-release essence.
The heat-conducting slow-release essence prepared in the embodiment is added into tobacco shreds, filter sticks or cigarette paper by adopting the technology known by the technicians in the field to prepare cigarette products.
Example 4
A heat-conducting slow-release essence is prepared by the following steps:
(the polysaccharide is chitosan, and the aroma substance is ethyl maltol)
(1) Uniformly mixing hexagonal boron nitride powder and chitosan according to the mass ratio of 1:4, adding the mixture into a 80ml nylon ball milling tank, adding agate balls with the diameter of 5mm, wherein the ball-material ratio is 50:1, sealing the ball milling tank, and carrying out ball milling on a QM-3SP2 planetary ball mill for 24 hours at the speed of 500rpm/min after sealing. After ball milling, dissolving the obtained powder in 100ml of deionized water, carrying out ultrasonic washing, carrying out suction filtration, repeatedly washing and filtering the obtained filter cake for 3 times, using 100ml of deionized water each time, carrying out vacuum drying on the cleaned solid at 60 ℃ for 12 hours, and grinding to obtain the chitosan modified hexagonal boron nitride with the thickness of 10 microns;
(2) adding 10 parts by mass of the hexagonal boron nitride modified by chitosan into 100ml of deionized water, and ultrasonically dispersing in a water bath for 1.5 hours to obtain a dispersion liquid A;
(3) heating and melting 10 parts by mass of ethyl maltol to obtain a molten liquid B;
(4) and adding the molten liquid B into the dispersion liquid A, stirring to be uniformly mixed, pouring into a mold, naturally cooling to room temperature, solidifying and demolding to obtain the heat-conducting slow-release essence.
The heat-conducting slow-release essence prepared in the embodiment is added into tobacco shreds, filter sticks or cigarette paper by adopting the technology known by the technicians in the field to prepare cigarette products.
Example 5
A heat-conducting slow-release essence is prepared by the following steps:
(the polysaccharide is sodium alginate, and the aroma substance is beta-damascenone)
(1) Uniformly mixing hexagonal boron nitride powder and sodium alginate according to the mass ratio of 3:25, adding the mixture into a 80ml nylon ball milling tank, adding agate balls with the diameter of 5mm, wherein the ball-material ratio is 50:1, sealing the ball milling tank, and carrying out ball milling on a QM-3SP2 planetary ball mill for 24 hours at the speed of 500rpm/min after sealing. After ball milling, dissolving the obtained powder in 100ml of deionized water, carrying out ultrasonic washing, carrying out suction filtration, repeatedly washing and filtering the obtained filter cake for 3 times, using 100ml of deionized water each time, carrying out vacuum drying on the cleaned solid at 60 ℃ for 12 hours, and grinding to obtain the sodium alginate modified hexagonal boron nitride tablet with the diameter of 20 microns;
(2) adding 15 parts by mass of the sodium alginate modified hexagonal boron nitride into 100ml of deionized water, and ultrasonically dispersing in a water bath for 1.5 hours to obtain a dispersion liquid A;
(3) heating and melting 5 parts by mass of beta-damascenone to obtain a molten liquid B;
(4) and adding the molten liquid B into the dispersion liquid A, stirring to be uniformly mixed, pouring into a mold, naturally cooling to room temperature, solidifying and demolding to obtain the heat-conducting slow-release essence.
The heat-conducting slow-release essence prepared in the embodiment is added into tobacco shreds, filter sticks or cigarette paper by adopting the technology known by the technicians in the field to prepare cigarette products.
Example 6
The only difference from example 1 is that gum arabic is additionally added to step (2). The step (2) is specifically as follows: adding 25 parts by mass of hexagonal boron nitride modified by Arabic gum and 40 parts by mass of Arabic gum into 100ml of deionized water, and ultrasonically dispersing in a water bath for 1.5 hours to obtain a dispersion A.
The heat-conducting slow-release essence prepared in the embodiment is added into tobacco shreds, filter sticks or cigarette paper by adopting the technology known by the technicians in the field to prepare cigarette products.
Comparative example 1
The preparation process of the heat-conducting slow-release essence is similar to that of the embodiment 1 except that Arabic gum is used for replacing hexagonal boron nitride modified by the Arabic gum.
Comparative example 2
The preparation process of the heat-conducting slow-release essence uses hexagonal boron nitride powder to replace modified hexagonal boron nitride, and the rest is the same as that in example 6.
Comparative example 3
The preparation of the heat-conducting slow-release essence uses graphene powder to replace hexagonal boron nitride powder, and the rest is the same as that in example 1.
Evaluation of
The aroma substance retention rates and the change in the aroma substance retention rates with time of examples and comparative examples were tested and evaluated.
A. Test procedure
(1) Retention rate of fragrant substance
The essences prepared in examples and comparative examples were stored at 40 c, weighed after 7 days, and the retention of the fragrant substances was calculated, and the results are shown in table 1 below.
(2) Change of aroma substance retention rate with time
The essences prepared in examples and comparative examples were heated to 65 ℃, weighed and recorded every 2min until 10min, and then the aroma substance retention rate was calculated, and the results are as in table 2 below.
Wherein the retention of the aroma substances is calculated by the following formula:
aroma substance retention rate = (initial quality of essence-quality after essence weight loss)/theoretical input quality of aroma substance x 100%. Note: the weight loss of the other components than the aroma-forming substance is negligible.
B. Evaluation results
TABLE retention of aroma substances at 140 ℃ storage conditions
| Sample(s) | Aroma substance retention (%) |
| Example 1 | 99.4 |
| Example 2 | 99.7 |
| Example 3 | 98.3 |
| Example 4 | 96.2 |
| Example 5 | 97.6 |
| Example 6 | 99.2 |
| Comparison ofExample 1 | 78.3 |
| Comparative example 2 | 88.5 |
| Comparative example 3 | 92.3 |
As can be seen from the table 1, the retention rate of the aroma substances of the essence prepared by the embodiment of the application is more than 95% after the essence is stored for a period of time, the slow release effect is good, and the application of the essence in heating non-combustion cigarettes is met;
the retention rate of the aroma substances in the example 1 is obviously higher than that in the comparative example 1, which shows that the modified hexagonal boron nitride can improve the storage stability of the essence and has a certain technical effect on the slow release effect;
the aroma retention of example 1 is greater than comparative example 3, illustrating the technical contribution of polysaccharide-modified hexagonal boron nitride compared to graphene mixed with polysaccharide;
the aroma substance retention of example 6 is greater than comparative example 2, indicating the technical contribution of modified hexagonal boron nitride compared to unmodified hexagonal boron nitride;
the retention rate of the fragrant substance of example 6 is substantially equivalent to that of example 1, which shows that the polysaccharide-modified hexagonal boron nitride can form a carrier of the fragrant substance by self-crosslinking, and simultaneously shows that the slow-release effect of the slow-release essence of the application is basically independent of the additional addition of the polysaccharide substance.
TABLE 265 ℃ Change of the retention of aroma substances with time
As can be seen from table 2, the change in the fragrance retention over time is significantly faster for example 1 than for comparative example 1, which illustrates the technical contribution of the addition of modified hexagonal boron nitride to the release rate of the fragrance;
the change of the retention rate of the aroma-forming substance of example 6 with time is greater than that of comparative example 2, indicating that the aroma-releasing rate of the modified hexagonal boron nitride is significantly increased compared to the unmodified hexagonal boron nitride powder;
the change in the retention rate of the fragrance-forming substance with time of example 1 is greater than that of comparative example 3, indicating that the polysaccharide-modified hexagonal boron nitride contributes more to the fragrance release rate than graphene mixed with the polysaccharide.
The rates of change of the retention rates of the fragrant substances in examples 1 and 6 were substantially comparable, indicating that the additional addition of the polysaccharide substance had little effect on the fragrance release rate of the fragrant substances.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A heat-conducting slow-release essence is characterized by comprising a slow-release carrier and a fragrant substance loaded and/or associated with the slow-release carrier; wherein the slow release carrier comprises polysaccharide modified hexagonal boron nitride.
2. A heat-conducting slow-release essence according to claim 1, wherein the polysaccharide-modified hexagonal boron nitride is obtained by dry mixing of polysaccharide and hexagonal boron nitride under mechanical action.
3. A heat-conducting slow-release essence according to claim 1, wherein the mass ratio of the aroma substance to the slow-release carrier is (1-10): (10-25).
4. A heat-conducting slow-release essence according to claim 1, wherein the sheet diameter of the polysaccharide-modified hexagonal boron nitride is 2-30 μm.
5. The heat-conducting slow-release essence according to claim 2, wherein the polysaccharide is one or more of acacia gum, agar, sodium alginate, guar gum, chitosan and sodium carboxymethyl cellulose.
6. A heat-conducting slow-release essence according to claim 2, wherein the mass ratio of the polysaccharide to the hexagonal boron nitride is (4-55): (1-4).
7. A thermally conductive sustained-release essence according to claim 2, wherein the mechanical force is at least one of ball milling, sand milling, bead milling, vibration milling, grinding and air blast.
8. A heat conductive slow release essence according to claim 1, wherein the functional group of the aroma substance contains one or more of hydroxyl, aldehyde, carbonyl, carboxyl and amino.
9. The heat-conducting slow-release essence according to claim 8, wherein the aroma-forming substance is one or more of furanone, menthol, vanillin, ethyl maltol, beta-damascone and damascone.
10. A smoking product comprising the heat-conductive slow-release essence according to any one of claims 1 to 9.
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| WO2007068339A1 (en) * | 2005-12-13 | 2007-06-21 | Henkel Ag & Co. Kgaa | Cosmetic agents having increased fragrance intensity and persistence |
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| CN110629583A (en) * | 2018-06-21 | 2019-12-31 | 湖南中烟工业有限责任公司 | Heat-conducting flame-retardant cigarette paper for cigarettes and preparation method and application thereof |
| CN111568806A (en) * | 2020-04-14 | 2020-08-25 | 仲恺农业工程学院 | Essential oil-loaded biological polysaccharide and protein modified boron nitride and preparation method and application thereof |
| CN111820450A (en) * | 2020-07-15 | 2020-10-27 | 湖北中烟工业有限责任公司 | Slow-release perfume and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068339A1 (en) * | 2005-12-13 | 2007-06-21 | Henkel Ag & Co. Kgaa | Cosmetic agents having increased fragrance intensity and persistence |
| CN110629583A (en) * | 2018-06-21 | 2019-12-31 | 湖南中烟工业有限责任公司 | Heat-conducting flame-retardant cigarette paper for cigarettes and preparation method and application thereof |
| CN109722912A (en) * | 2018-12-11 | 2019-05-07 | 代学忠 | A kind of microcapsule essence composite material and its preparation process for self-heating product |
| CN111568806A (en) * | 2020-04-14 | 2020-08-25 | 仲恺农业工程学院 | Essential oil-loaded biological polysaccharide and protein modified boron nitride and preparation method and application thereof |
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