CN112515241A - Nanofiber composite material for cigarette filter tip and preparation method thereof - Google Patents
Nanofiber composite material for cigarette filter tip and preparation method thereof Download PDFInfo
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- CN112515241A CN112515241A CN202011410484.9A CN202011410484A CN112515241A CN 112515241 A CN112515241 A CN 112515241A CN 202011410484 A CN202011410484 A CN 202011410484A CN 112515241 A CN112515241 A CN 112515241A
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- pvp
- peg
- nanofiber
- nanofiber composite
- polyvinylpyrrolidone
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- 239000002121 nanofiber Substances 0.000 title claims abstract description 55
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 40
- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 37
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 37
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 36
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 36
- 229920002301 cellulose acetate Polymers 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000004626 polylactic acid Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000010041 electrostatic spinning Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 9
- 238000001523 electrospinning Methods 0.000 claims description 8
- 239000002243 precursor Substances 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000000779 smoke Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 description 7
- 241000208125 Nicotiana Species 0.000 description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000002114 nanocomposite Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 235000019615 sensations Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
Images
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
- A24D3/17—Filters specially adapted for simulated smoking devices
-
- 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
- A24D3/02—Manufacture of tobacco smoke filters
-
- 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
- A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
- A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
- D01D5/0084—Coating by electro-spinning, i.e. the electro-spun fibres are not removed from the collecting device but remain integral with it, e.g. coating of prostheses
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/16—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent
Abstract
The invention provides a nanofiber composite material for a cigarette filter tip and a preparation method thereof. The nanofiber composite comprises: a base layer of tow comprising cellulose acetate (CTA) and/or polylactic acid (PLA), and a layer of PEG-PVP nanofiber blend material consisting of polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP). The nanofiber composite material provided by the invention effectively reduces the thermal property of the material, has good cost and economy, can effectively reduce the smoke temperature of a cigarette which is not burnt during heating, and improves the taste of a user.
Description
Technical Field
The invention belongs to the technical field of cigarette materials, and particularly relates to a nanofiber composite material for a cooling filter tip for heating a non-combustible cigarette, a preparation method of the nanofiber composite material, and a cigarette filter tip containing the nanofiber composite material.
Background
Cigarettes are strip-shaped tobacco products made by rolling tobacco shreds with cigarette paper, and are also called cigarettes, cigarettes and the like. As is well known, cigarette development has been over 500 years. Cigarettes are luxury goods limited to noble consumption at the beginning of their birth, and with continuous development, cigarettes are becoming popular consumer goods today. Especially, the consumption of cigarettes has been increasing rapidly in recent 100 years, and the cigarettes have become articles which are seen everywhere in the daily life of the public. Along with the fact that cigarettes of modern people become consumer goods and necessities in daily life, the tobacco industry becomes an industry with objective profits.
The cigarette which is not combusted by heating is closest to the traditional cigarette in the aspects of physiological sensation, psychological perception, smoking mode and the like, and has good development potential. The cigarette is heated by an external heating element, tobacco shreds or sheets are only heated but not burnt, atomized media in the cigarettes, flavor components in the tobacco and additional flavor substances generate smoke by heating, and the release amount of harmful chemical components in the smoke is obviously reduced. However, the temperature of the high-temperature atomized smoke entering the oral cavity through the filter tip section is higher than the combustion temperature of the common cigarette, so that the inlet smoke is burnt, and the smoking experience and the smoking feeling are different from those of the traditional cigarette. The prior art mainly carries out cooling treatment on longitudinally flowing high-temperature smoke through a phase-change cooling material, for example, the iQOS cooling section material is mainly a polylactic acid (PLA) sheet which is folded, pleated, gathered and folded, but the cooling effect is limited, and the expected effect cannot be achieved.
Therefore, a novel low-temperature filter tip material capable of effectively reducing the smoke temperature of a cigarette which is not burned after being heated is needed.
Disclosure of Invention
The invention provides a nanofiber composite material for heating a temperature-reducing filter tip of a non-combustible cigarette, a preparation method thereof and a cigarette filter tip containing the material.
In a first aspect, the present invention provides a nanofiber composite for a cigarette filter rod comprising: a tow base layer comprising cellulose acetate (CTA) and/or polylactic acid (PLA), and a PEG-PVP nanofiber blend material layer consisting of polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP), wherein the PEG-PVP nanofiber blend material is decorated onto the tow base.
In some embodiments, the tow base layer comprises or is made of cellulose acetate (CTA). In some embodiments, the tow base layer comprises or is made of polylactic acid (PLA). The tow base layer may be made using methods of preparation known in the art. For example, in some embodiments, the tow base layer is made using a wiredrawing process.
In some embodiments, the layer of PEG-PVP nanofiber blend material is made using an electrospinning technique.
In some embodiments, the polyethylene glycol (PEG) has a molecular weight of 200-.
In some embodiments, the polyvinylpyrrolidone (PVP) has a molecular weight of 44000-54000.
In some embodiments, the ratio of the polyethylene glycol (PEG) to the polyvinylpyrrolidone (PVP) is 5: 1-1: 5, e.g. 3: 1-1: 3,2: 1-1: 2, e.g. 1: 1.
in some embodiments, the resulting nanofiber blend has a glass transition temperature of 45 to 58 ℃. In some embodiments, the resulting nanofiber blend has a recrystallization temperature of 95 to 105 ℃. In some embodiments, the resulting nanofiber blend has a melting temperature of 150-160 ℃ in the case of PLA substrates. In some embodiments, the resulting nanofiber blend material has a melting temperature of 190-200 ℃ in the case of a CTA substrate.
In a second aspect, the present invention provides a cigarette filter rod comprising a nanofiber composite comprising: a base layer of tow comprising cellulose acetate (CTA) and/or polylactic acid (PLA), and a layer of PEG-PVP nanofiber blend consisting of polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP).
The definitions, embodiments and preferences described in the first aspect apply equally to the second aspect.
In a third aspect, the present invention provides a method of making a nanofiber composite for a cigarette filter rod. The method comprises the following steps:
mixing polyethylene glycol (PEG), polyvinylpyrrolidone (PVP) and water to prepare electrostatic spinning precursor solution,
performing electrostatic spinning by using the electrostatic spinning precursor solution to obtain a PEG-PVP nano fiber blending material,
electrospinning on a surface of a tow substrate comprising cellulose acetate (CTA) or polylactic acid (PLA) using the PEG-PVP nanofiber blend material, thereby modifying the nanofiber blend material over the tow substrate material to obtain the nanofiber composite.
In the electrostatic spinning process, polyethylene glycol (PEG) is used as a solute, polyvinylpyrrolidone (PVP) is used as an adhesive, and water is used as a solvent. In some embodiments, the water is deionized water. In some embodiments, the mass fraction of polyethylene glycol (PEG) is 20-30%, the mass fraction of polyvinylpyrrolidone (PVP) is 20-30%, and the mass fraction of deionized water is 40-60%.
In some embodiments, the mixing step comprises: water was added to the vessel, followed by polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) in that order. In some embodiments, the mixing step comprises: magnetic stirring was performed to mix polyethylene glycol (PEG), polyvinylpyrrolidone (PVP) and water uniformly.
In some embodiments, the electrospinning process comprises a spinning voltage of 10 to 20 kV.
In some embodiments, the tow substrate material comprising cellulose acetate (CTA) or polylactic acid (PLA) has been formed by a wiredrawing process.
In some embodiments, PEG/PVP tow is sprayed onto the CTA or PLA tow surface by electrospinning. In some embodiments, the tow base material and the nanofiber blend are simultaneously ejected in a vertical direction to decorate the nanofiber blend on the tow base material to obtain the desired composite.
The materials and methods of the present invention achieve beneficial results that are not limited to:
1) the obtained nanofiber blending material has uniform and smooth size and no impure phase.
2) After the nanofiber blending material is modified on the tow substrate, the obtained nanofiber composite material is tightly combined and can be directly used for preparing cigarette holders.
3) The obtained nanofiber blending material has low glass transition temperature, recrystallization temperature and melting temperature, and the thermal performance of the material can be effectively reduced after the traditional cigarette holder material is modified.
4) The method adopts water, polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP), and has the advantages of relatively low cost and price of raw materials and good cost and economy.
5) The adopted electrostatic spinning preparation method is simple and convenient for large-scale industrial production, and the prepared nanofiber blending material can be directly modified on the surface of the traditional cigarette material to obtain a novel nanofiber composite material, so that the industrial application prospect is wide.
6) The obtained nanofiber composite material has improved cooling effect.
7) After the obtained novel nanofiber composite material is applied to a low-temperature filter tip of a cigarette, the temperature of smoke of the cigarette which is not combusted during heating can be effectively reduced, and the taste of a user is improved.
Drawings
FIG. 1 shows a schematic diagram of a composite material preparation process in some embodiments of the invention.
Fig. 2 shows a flow diagram for the preparation of a nanofiber composite in some embodiments of the invention.
FIG. 3 shows a scanning electron micrograph of a nanofiber material in some embodiments of the present invention.
FIG. 4 shows SEM images of nanofiber composites in some embodiments of the invention.
FIG. 5 shows a differential calorimeter graph of a nanofiber composite in some embodiments of the invention.
Detailed Description
The invention will be further explained with reference to the drawings.
Example 1: preparation of nanocomposites
18g of deionized water is used as a solvent, 11g of polyvinylpyrrolidone (PVP) (chemical reagents of national drug group, Inc., PVP, K30, molecular weight 44000-54000) is used as an adhesive, and 11g of polyethylene glycol (PEG10000) with molecular weight 10000 (chemical reagents of national drug group, Inc.) is used as a solute. Sequentially adding deionized water, polyethylene glycol and polyvinylpyrrolidone into a container, and magnetically stirring to completely dissolve and uniformly mix to obtain the electrostatic spinning precursor solution. The novel nano-fiber material is produced by an electrostatic spinning device (Beijing Yongkang Leye science and technology development Co., Ltd.), and the novel nano-composite material is obtained by taking the conventional cigarette material cellulose acetate as a tow substrate (Hubei province filter tip rod material factory, single denier 3.9, total denier 31000). The schematic diagram of the modification process is shown in FIG. 1 (wherein a single nozzle is shown and multiple nozzles are shown on a single spinning apparatus). In the electrostatic spinning process, the temperature is kept at 20-30 ℃, the humidity is kept at 10-15%, and the spinning voltage is 11.8 KV. The flow chart of the preparation process of the novel nano composite material is shown in figure 2.
Example 2: determination of Properties of nanocomposites
The sample prepared in example 1 was cut, adhered to a stainless steel sample table, subjected to vacuum-pumping and metal-spraying operations, placed in a sample chamber of a scanning electron microscope (Tescan MIRA 3 scanning electron microscope, czech), subjected to vacuum-pumping, and subjected to secondary electron to obtain the surface morphology of the sample.
As shown in FIG. 3, the nanofiber material obtained in example 1 was uniform and smooth in size and free of impure phases.
As shown in fig. 4, the nanofiber composite obtained in example 1 is tightly combined, and can be directly used for preparing cigarette holders.
The sample prepared in example 1 was heated from 30 ℃ to 200 ℃ at a heating rate of 10 ℃/min, then kept at 200 ℃ for 20min, and finally cooled from 200 ℃ to 30 ℃ at a cooling rate of 10 ℃/min, and measured by a DSC25 differential scanning calorimeter from the company TA of America.
As shown in fig. 5, the nanofiber composite obtained in example 1 has low glass transition temperature, recrystallization temperature and melting temperature, and the thermal properties of the material can be effectively reduced after the traditional cigarette holder material is modified.
The protective scope of the present invention is not limited to the above-described embodiments, and it is apparent that various modifications and variations can be made to the present invention by those skilled in the art without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. A nanofiber composite for a cigarette filter rod comprising: a base layer of tow comprising cellulose acetate (CTA) and/or polylactic acid (PLA), and a layer of PEG-PVP nanofiber blend material consisting of polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP).
2. The nanofiber composite of claim 1 wherein the polyethylene glycol (PEG) has a molecular weight of 200-10000.
3. The nanofiber composite of claim 1 or 2 wherein the molecular weight of the polyvinylpyrrolidone (PVP) is 44000-54000.
4. The nanofiber composite of any one of the preceding claims wherein the ratio of the polyethylene glycol (PEG) to the polyvinylpyrrolidone (PVP) is 5: 1-1: 5.
5. the nanofiber composite of any one of the preceding claims wherein the layer of PEG-PVP nanofiber blend material is made using an electrospinning technique.
6. A cigarette filter rod comprising the nanofiber composite of any one of claims 1-5.
7. A method of making a nanofiber composite for a cigarette filter rod, the method comprising:
mixing polyethylene glycol (PEG), polyvinylpyrrolidone (PVP) and water to prepare electrostatic spinning precursor solution,
performing electrostatic spinning by using the electrostatic spinning precursor solution to obtain a PEG-PVP nano fiber blending material,
electrospinning on a surface of a tow substrate comprising cellulose acetate (CTA) or polylactic acid (PLA) using the PEG-PVP nanofiber blend material to obtain the nanofiber composite.
8. The method of claim 7, wherein the tow substrate is made using a wiredrawing process.
9. The process according to claim 7 or 8, wherein in the electrospinning process, the spinning voltage is 10-20 kV.
10. The method according to any one of claims 7 to 9, wherein the mass fraction of polyethylene glycol (PEG) in the electrospinning precursor liquid is 20-30%, the mass fraction of polyvinylpyrrolidone (PVP) is 20-30%, and the mass fraction of deionized water is 40-60%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011410484.9A CN112515241A (en) | 2020-12-04 | 2020-12-04 | Nanofiber composite material for cigarette filter tip and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011410484.9A CN112515241A (en) | 2020-12-04 | 2020-12-04 | Nanofiber composite material for cigarette filter tip and preparation method thereof |
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| CN112515241A true CN112515241A (en) | 2021-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114403501A (en) * | 2021-12-21 | 2022-04-29 | 甘肃烟草工业有限责任公司 | Cooling fiber for cigarette filter tip and preparation method and application thereof |
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| CN111035059A (en) * | 2019-12-30 | 2020-04-21 | 南通醋酸纤维有限公司 | Low-suction-resistance low-filtration cooling composite cigarette filter tip |
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2020
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| CN114403501A (en) * | 2021-12-21 | 2022-04-29 | 甘肃烟草工业有限责任公司 | Cooling fiber for cigarette filter tip and preparation method and application thereof |
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Application publication date: 20210319 |