CN112280536A - Cooling energy storage phase-change material used in novel tobacco filter stick and preparation method thereof - Google Patents
Cooling energy storage phase-change material used in novel tobacco filter stick and preparation method thereof Download PDFInfo
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- CN112280536A CN112280536A CN202010988789.1A CN202010988789A CN112280536A CN 112280536 A CN112280536 A CN 112280536A CN 202010988789 A CN202010988789 A CN 202010988789A CN 112280536 A CN112280536 A CN 112280536A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 31
- 239000012782 phase change material Substances 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 241000208125 Nicotiana Species 0.000 title claims abstract description 15
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 26
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims abstract description 10
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229960000541 cetyl alcohol Drugs 0.000 claims abstract 2
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 claims abstract 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 8
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 8
- 239000002202 Polyethylene glycol Substances 0.000 abstract description 5
- 229920001223 polyethylene glycol Polymers 0.000 abstract description 5
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 231100000956 nontoxicity Toxicity 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 15
- 230000008859 change Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 239000011232 storage material Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000002411 thermogravimetry Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 2
- 238000004566 IR spectroscopy Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000113 differential scanning calorimetry Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008240 homogeneous mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- -1 aldehyde ketone Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000002464 physical blending Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010942 self-nucleation Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
The invention relates to the technical field of cooling energy storage phase-change materials, and provides a cooling energy storage phase-change material used in a novel tobacco filter stick and a preparation method thereof. The temperature-reducing energy-storing phase-change material is formed by mixing AR-grade polyethylene glycol (fatty alcohol) with different molecular weights and industrial-grade SBS (styrene-butadiene block copolymer). The AR-level fatty alcohol is one or a mixture of several of AR-level lauryl alcohol, AR-level tetradecanol, AR-level cetyl alcohol and AR-level stearyl alcohol. The phase-change material has no pollution to the environment, no toxicity and no harm to human bodies, the SBS/fatty alcohol composite phase-change material has good thermal stability, and the phase-change material can be used as a composite material to prepare a cooling section for a tobacco filter stick through a forming process and a forming die and is directly added or compounded into the tobacco filter stick.
Description
Technical Field
The invention relates to the technical field of cooling energy storage phase-change materials, in particular to a cooling energy storage phase-change material used in a novel tobacco filter stick and a preparation method thereof.
Background
At present, the application of cooling materials in production and life is becoming more and more extensive, and the principle is basically three categories of sensible heat materials, latent heat energy storage materials and chemical reaction energy storage materials. The sensible heat energy storage material is mainly used for storing energy by increasing the temperature of a liquid energy storage medium, although the sensible heat energy storage mode is simple and low in cost, in the practical application process, the constant temperature cannot be maintained to release all energy, and the sensible heat energy storage material does not have high application value. The chemical reaction energy storage mainly utilizes reaction heat in a reversible chemical reaction process to store energy, and is a process of mutual conversion of chemical energy and heat energy. Although chemical reaction energy storage has high energy storage density, the reversible technology is complex and inconvenient to use, and has a plurality of difficulties in the practical application process. Latent heat energy storage is realized by utilizing the principle that phase change materials need to store and release latent heat of phase change in the phase change process. The latent heat energy storage material has the advantages of large energy storage density, small volume change and convenient use, and the temperature can be approximately kept constant in the phase change process. Among the three types of energy storage materials, the materials capable of generating latent heat energy storage are more in types and have the most application value. In order to improve the energy utilization rate and solve the imbalance between energy supply and demand, a wide variety of developments and applications of phase change materials are being carried out by researchers. The phase change energy storage material is an effective mode for relieving mismatching of energy supply and demand in time, place and strength, the phase change material mainly uses a solid-liquid phase change material and a solid-solid phase change material, but the problems of low phase change latent heat and high price exist, the phase change material preparation process is complicated, and the phase change enthalpy is seriously attenuated along with the cycle times and cannot meet the requirements of different temperatures.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a cooling energy storage phase-change material for a novel tobacco filter stick and a preparation method thereof.
The object of the invention is achieved by the following technical measures.
The invention provides a cooling energy storage phase-change material used in a novel tobacco filter stick, which is formed by mixing AR-grade polyethylene glycol (fatty alcohol) with different molecular weights and industrial-grade SBS (styrene-butadiene block copolymer).
In the technical scheme, the AR-grade fatty alcohol is one or a mixture of more of AR-grade dodecanol, AR-grade tetradecanol, AR-grade hexadecanol and AR-grade octadecanol. Preferred are AR grade dodecanol (C12OH), AR grade tetradecanol (C14OH), AR grade hexadecanol (C16OH), AR grade octadecanol (C18OH) from the alatin manufacturer.
The Yueyanite styrene-butadiene block copolymer (SBS) is preferred.
The invention also provides a preparation method of the cooling energy storage phase-change material for the novel tobacco filter stick, which comprises the following steps:
(1) respectively dissolving fatty alcohol and SBS with THF (tetrahydrofuran), and stirring while heating with a magnetic stirrer to increase the dissolving rate;
(2) selecting the phase transition temperature to be 45 ℃, and blending the aliphatic alcohol obtained in the step (1) and the SBS solute according to different mass ratios;
(3) rotationally evaporating the SBS/fatty alcohol blend for 1h at 40 ℃ by using a rotary evaporator to remove tetrahydrofuran to obtain a target product;
(4) drying the target product in a vacuum drying oven for 12h for later use.
Compared with the prior art, the invention has the following advantages and beneficial effects: through tests, the phase change material has no pollution to the environment, no toxicity, no harm to human bodies, good thermal stability and excellent mechanical property. The function of the multi-molecular polyethylene glycol and SBS is to provide phase change enthalpy and core material of energy storage material, and to prepare homogeneous mixture. Various performances of the phase-change material meet the requirement of detection indexes, and the phase-change material can be widely applied to novel tobacco.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the implementation methods of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A cooling energy storage phase-change material is prepared from the following raw materials: different molecular weight AR grades of polyethylene glycol (fatty alcohol) and technical grade styrene-butadiene block copolymer (SBS).
The preparation method of the cooling energy storage phase-change material comprises the following steps:
the method comprises the following steps: respectively dissolving fatty alcohol and SBS with THF, and heating while stirring with a magnetic stirrer to increase the dissolving rate;
step two: selecting the phase transition temperature to be 45 ℃, and blending according to different mass ratios;
step three: rotationally evaporating the SBS/fatty alcohol blend for 1h at 40 ℃ by using a rotary evaporator to remove tetrahydrofuran to obtain a target product;
step four: drying the target product in a vacuum drying oven for 12h for later use.
Preferred are the AR grade dodecanol (C12OH), AR grade tetradecanol (C14OH), AR grade hexadecanol (C16OH), AR grade octadecanol (C18OH) and the yuelianite styrene-butadiene block copolymer (SBS) from the alatin manufacturer.
Sample contents were mixed according to the following table:
mixing the two materials with different contents, and performing various performance tests including infrared spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), thermogravimetric analysis (TG), mechanical property and the like.
According to the test result, the following results are obtained:
1. the phase transition temperature of the product can be controlled by adjusting the content of fatty alcohol with different carbon chains, and along with the increase of the length of the carbon chain of the fatty alcohol, the phase transition temperature of the product rises, and the heat storage performance of the product also presents a linear relation and rises to a certain extent.
2. TG tests show that the heat stabilizer of the fatty alcohol phase-change material is very good and can meet daily use of the material.
3. The material has very poor mechanical property, can not be used as a phase change material for cigarettes, and can be further modified if being used as the phase change material for cigarettes.
And (4) carrying out next modification work aiming at the mechanical property of the product according to the result analysis. SBS is used as an elastomer, has excellent mechanical property, particularly has very good toughness, and is selected as a modifier of fatty alcohol, and the mechanical property complementarity of the SBS and the fatty alcohol is utilized to carry out physical blending on the SBS and the fatty alcohol.
Example 2
Sample contents were mixed according to the following table:
mixing the two materials with different contents, and performing various performance tests, including infrared spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), thermogravimetric analysis (TG), mechanical property test, tunneling scanning electron microscope, odor test and environmental protection performance test.
According to the test result, the following results are obtained:
1. the function of the multi-molecular polyethylene glycol and SBS is to provide phase change enthalpy and core material of energy storage material, and to prepare homogeneous mixture. The DCS shows that the alcohol has good self-nucleation characteristics, so that the supercooling degree is very small in the solidification process, and the supercooling degree of the aliphatic alcohol is only 0.01 ℃. Meanwhile, the conclusion of good thermal stability is also obtained. It is seen that fatty alcohols are candidates for suitable thermal storage materials, and that other fatty alcohols are also suitable thermal storage materials.
2. With the decrease of the carbon chain number content, the phase transition enthalpy value of the blend gradually increases, the number of crystallizable carbon atoms and the crystallinity of a side chain of the blend gradually increase, the proportion of the fatty alcohol in the whole alkyl chain also gradually decreases, and the phase transition temperature of the sample gradually increases. It was demonstrated that the phase transition temperature variation can be controlled by adjusting the content of different fatty alcohols.
The SBS/fatty alcohol composite phase change material has good thermal stability, and the 5% weight loss temperature is more than 200 ℃.
4. With the increase of SBS content, the mechanical property of the material is greatly improved, SBS is used as an elastomer, the toughness of fatty alcohol is effectively increased, the mechanical property of the material is greatly improved, a sample has strong processability, and the SBS can be used as a composite material to prepare a cooling section for a tobacco filter stick through a forming process and a forming die and directly added or compounded into the tobacco filter stick.
5. In the odor emitting substances of the sample, eighteen aldehyde ketone and pentabenzene basically meet the requirement of environmental protection. Odor evaluation the requirement of no odor is satisfied under normal temperature condition.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Although a method of practicing the present invention has been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a cooling energy storage phase change material for in novel tobacco filter rod which characterized in that: the cooling energy storage phase-change material is formed by mixing AR-level fatty alcohol and SBS.
2. The temperature-reducing and energy-storing phase-change material for the novel tobacco filter stick according to claim 1, characterized in that: the AR-level fatty alcohol is one or a mixture of several of AR-level lauryl alcohol, AR-level tetradecanol, AR-level cetyl alcohol and AR-level stearyl alcohol.
3. A preparation method of a cooling energy storage phase-change material used in a novel tobacco filter stick is characterized by comprising the following steps:
(1) respectively dissolving fatty alcohol and SBS with THF, heating and stirring with magnetic stirrer;
(2) selecting the phase transition temperature to be 45 ℃, and blending the aliphatic alcohol obtained in the step (1) and the SBS solute according to different mass ratios;
(3) rotationally evaporating the SBS/fatty alcohol blend for 1h at 40 ℃ by using a rotary evaporator to remove tetrahydrofuran to obtain a target product;
(4) drying the target product in a vacuum drying oven for 12h for later use.
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| CN202010988789.1A CN112280536A (en) | 2020-09-18 | 2020-09-18 | Cooling energy storage phase-change material used in novel tobacco filter stick and preparation method thereof |
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| CN202010988789.1A CN112280536A (en) | 2020-09-18 | 2020-09-18 | Cooling energy storage phase-change material used in novel tobacco filter stick and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046034A (en) * | 2021-04-01 | 2021-06-29 | 云南巴菰生物科技有限公司 | Phase-change cooling material for heating non-combustible cigarettes and preparation method thereof |
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| 陈秋平: "复合相变材料的制备及其对卷烟滤嘴温度的调控研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046034A (en) * | 2021-04-01 | 2021-06-29 | 云南巴菰生物科技有限公司 | Phase-change cooling material for heating non-combustible cigarettes and preparation method thereof |
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