CN113603501B - Selective adsorption cooling material and preparation method and application thereof - Google Patents
Selective adsorption cooling material and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a selective adsorption cooling material suitable for heating cigarettes and a preparation method thereof. Preparing the hydrated magnesium aluminum silicate clay, the aluminum source, the activated carbon powder and the forming agent solution into porous ceramic through the processes of proportioning, granulating, forming, calcining and the like, soaking the porous ceramic into the surface modifier solution, and obtaining the adsorption cooling material after reaction and drying. The adsorption cooling material can realize selective adsorption of water in the smoke of the heated cigarette and non-adsorption of glycerin, can effectively reduce the smoke temperature on the premise of not influencing the smoking effect, is low in cost, is easy for large-scale production, and has wide market application prospect.
Description
Technical Field
The invention provides a selective adsorption cooling material and a preparation method and application thereof, belonging to the technical field of new materials.
Background
Heating cigarettes are an important form of novel tobacco products, and tobacco materials are heated to release aerosol mainly by a heating distillation mode (below 500 ℃). Compared with the traditional cigarette, the cigarette is heated only by heating the tobacco material instead of burning, so that the harmful ingredients generated in the high-temperature burning process of the tobacco are reduced, and the release amount of side stream smoke and environmental smoke is also obviously reduced. Although mainstream heated cigarettes in international markets, such as iQOS in Femo, Glo in Enmei tobacco, Ploom Tech in Japanese tobacco, etc., have been sold, domestic research on heated cigarettes is still in the development stage. The heated cigarette is short, which results in the temperature of the cigarette entering the mouth being too hot. In this regard, various tobacco companies have adopted different solutions in the design of the cigarette cooling segment. For example, embossing gathered PLA film, fiber braided bundle with cooling effect, embossing gathered aluminum foil composite paper, cooling cavity fixing piece and the like are adopted. Generally speaking, the flue gas cooling measures mainly focus on two aspects of cooling by adding cooling materials and designing cooling structures.
In the aspect of material cooling, heat absorbing materials, heat storage materials, heat conducting materials and the like can be used for heating cigarette smoke to cool, and the heat of the smoke is transferred. This method is also currently the most prominent research approach. Such as polylactic acid phase change cooling materials. When the high-temperature flue gas passes through the polylactic acid polymer, the polylactic acid undergoes glass transition to absorb heat, and the heat energy of the flue gas is consumed; on the other hand, when water vapor in the smoke passes through the polylactic acid polymer, the water vapor is condensed on the surface of the polylactic acid polymer, so that the smoke is dried. However, after the polylactic acid sheet is contacted with high-temperature flue gas and undergoes glass transition, a melting and bonding phenomenon occurs, a longitudinally extending flue gas channel is blocked, the flue gas does not flow through the interior of the polylactic acid sheet, and meanwhile, the polylactic acid material can also have a partial adsorption effect on glycerin in the flue gas, so that the content of glycerin in the flue gas is reduced, and the suction quality is reduced to some extent.
Besides the aim of reducing the smoke temperature by adding additives capable of absorbing heat, storing heat and conducting heat in the heated cigarette, the cigarette can be combined with the adjustment of the cigarette structure to enhance the smoke cooling effect, such as utilizing a cavity to buffer and store heat, lengthening a smoke channel, enhancing the heat exchange between the smoke and the external environment and the like. In the cooling measures, the temperature of the flue gas can be partially reduced, but certain defects still exist. The temperature is reduced by the cooling material, although a good cooling effect can be achieved, the glycerol can be adsorbed, and the smoke quality is reduced; through structural design cooling, although little influence to flue gas concentration, the cooling effect is limited. In conclusion, the selective adsorption cooling material is researched, the smoke temperature is effectively reduced while the smoke concentration is not influenced, and the practical significance on the improvement of the quality of the heated cigarette product is strong.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a selective adsorption cooling material and a preparation method thereof, and the invention also aims to provide the application of the adsorption cooling material in heating cigarettes for cooling.
The purpose of the invention can be realized by the following technical scheme:
the technical scheme of the invention is as follows: according to the invention, aluminum source powder, activated carbon powder and a forming agent solution are added into hydrated magnesium aluminum silicate clay, so that porous ceramic is prepared; and then the surface of the porous ceramic is modified. Wherein the aluminum source powder is added to substantially slightly reduce the microscopic pore size of the hydrated magnesium aluminum silicate clay. As is well known, the microscopic pore diameter of the hydrous magnesium aluminum silicate clay is 0.37-0.64 nm, the molecular diameters of water molecules and glycerol are 0.4nm and 0.62nm respectively, and the pore diameter of the hydrous magnesium aluminum silicate clay is reduced to be less than 0.62nm by adding aluminum source powder, so that the microscopic pore of the adsorption cooling material can selectively adsorb the water molecules. On the other hand, the addition of the activated carbon powder mainly enables the adsorption cooling material to form a transparent macro porous structure, so that the quality of the adsorption material can be greatly reduced, meanwhile, the smoke can pass through more easily, the taste of the smoke is prevented from being reduced, and the heat energy of the smoke can be further dissipated due to the existence of three-dimensional multilevel pore channels. Meanwhile, the porous ceramic adsorption cooling material is subjected to surface modification, so that the porous ceramic adsorption cooling material has no adsorption capacity on glycerol. Therefore, the adsorption cooling material can realize selective adsorption of water in the smoke of the heated cigarette and non-adsorption of glycerin, can effectively reduce the smoke temperature on the premise of not influencing the smoking effect, and is low in cost and easy for large-scale production.
The specific technical scheme of the invention is as follows: a is suitable for the selective adsorption cooling material, the adsorption cooling material is prepared from hydrated magnesium aluminum silicate clay, aluminum source powder, activated carbon powder, forming agent solution and surface modifier; wherein: 40-80 parts of hydrated magnesium aluminum silicate clay, 1-10 parts of aluminum source powder, 30-60 parts of activated carbon powder, 5-15 parts of forming agent solution and 1-15 parts of surface modifier.
In some specific embodiments: 50-60 parts of hydrated magnesium aluminum silicate clay, 1-5 parts of aluminum source powder, 35-49 parts of activated carbon powder, 8-10 parts of forming agent solution and 5-10 parts of surface modifier in sequence.
In some specific embodiments: the hydrated magnesium aluminum silicate clay is attapulgite; the aluminum source powder is aluminum hydroxide; the surface modifier is sodium polyacrylate; the forming agent solution is a polyvinyl alcohol solution with the mass fraction of 1-15%.
A preparation method of the selective adsorption cooling material comprises the following steps:
(1) preparation of porous ceramics
Sieving and uniformly mixing the hydrated magnesium aluminum silicate clay, the activated carbon powder and the aluminum source powder, then adding a forming agent solution for granulation, adding the granulated pug into a mold for pressurization and pressure maintaining to obtain a ceramic blank, and then placing the ceramic blank into a kiln for calcination to obtain porous ceramic;
(2) preparation of surface modifier
Dissolving a surface modifier in a sodium hydroxide solution to obtain a surface modifier solution;
(3) surface modification of porous ceramics
And (3) soaking the porous ceramic prepared in the step (1) in the surface modifier solution prepared in the step (2), reacting in a water bath at 50-70 ℃ for 1-3 h, taking out the reacted porous ceramic, and drying to prepare the porous ceramic adsorption cooling material.
The method comprises the following steps: in the step (2): sodium hydroxide: the mass ratio of the surface modifier is 1: 0.5 to 1.5.
The method comprises the following steps: the calcination temperature in the step (1) is 1100-1300 ℃, and the heat preservation is carried out for 1.5-3 h.
The method comprises the following steps: the granularity of the activated carbon powder in the step (1) is less than 200 meshes, and the granularity of the aluminum source powder is less than 200 meshes; the pressurizing pressure in the step (1) is 10-15 MPa, and the pressure maintaining time is 1-3 min.
The method comprises the following steps: the drying temperature in the step (3) is 60-150 ℃, and the drying time is 12-24 h.
The technical scheme of the invention is as follows: the selective adsorption cooling material is applied to heating cigarettes for cooling.
Adsorption conditions and results of the invention: simulating smoking according to a cigarette smoking model specified in national standard YC/T29-1996, wherein a K-type thermocouple temperature detector is used for detecting the temperature at the central position of the middle section of a cigarette filter stick during smoking of a cigarette, the highest smoke temperature is 43.1 ℃, and the lowest smoke temperature is 36.3 ℃; the maximum resistance of the adsorbent material was 834Pa and the minimum resistance was 658Pa as measured by conventional resistance-pull detection methods.
Has the beneficial effects that:
the adsorption cooling material prepared by the invention has a loose three-dimensional hierarchical pore structure, can realize selective adsorption of water in the smoke of the heated cigarette and non-adsorption of glycerol, can effectively reduce the smoke temperature on the premise of not influencing the smoking effect, and has the advantages of low cost, easy large-scale production, strong application and popularization value and wide market prospect.
Detailed Description
The invention is further illustrated by the following examples, without limiting the scope of the invention:
example 1
(1) Raw material sieving
Sequentially sieving hydrous magnesium aluminum silicate clay (attapulgite with the pore diameter of 0.37-0.64 nm, Siheyi Tong bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide with a standard sieve of 200 meshes for later use;
(2) proportioning and granulating
Weighing 50g of hydrated magnesium aluminum silicate clay, 1g of aluminum hydroxide and 49g of activated carbon powder, uniformly stirring, then weighing 10g of 15 mass percent polyvinyl alcohol solution, mixing with the powder, grinding and granulating;
(3) shaping and first calcination
Weighing 2g of granulated pug, slowly adding the pug into a mold, pressurizing to 10MPa, keeping the pressure for 1min, taking out a sample, repeating the blank molding for 50 times to obtain 50 porous ceramic blanks, and placing the porous ceramic blanks in a kiln for heat preservation for 1.5h at 1100 ℃ to obtain porous ceramic;
(4) preparation of surface modifier
Weighing 5g of sodium hydroxide, adding 50g of deionized water, stirring until the solution is clear and transparent to obtain a sodium hydroxide solution, and then weighing 2.5g of sodium polyacrylate and dissolving the sodium polyacrylate in the sodium hydroxide solution to obtain a surface modifier solution;
(5) surface modification of porous ceramics
And (4) soaking the porous ceramic prepared in the step (3) in the surface modifier solution prepared in the step (4), reacting in a water bath at 50 ℃ for 2h, taking out the reacted porous ceramic, and drying at 60 ℃ for 12h to prepare the porous ceramic adsorption cooling material.
(6) Testing of adsorbent Material Performance
Simulating smoking according to a cigarette smoking model specified in national standard YC/T29-1996, and using a K-type thermocouple temperature detector to detect the temperature of the cigarette at the central position of the middle section of the cigarette filter stick during smoking, wherein the smoke temperature is 43.1 ℃; the resistance to draw of the adsorbent material was 658Pa as measured by a conventional draw-aid test.
Example 2:
(1) raw material sieving
Sequentially sieving hydrous magnesium aluminum silicate clay (attapulgite with the pore diameter of 0.37-0.64 nm, Siheyi Tong bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide with a standard sieve of 200 meshes for later use;
(2) proportioning and granulating
Weighing 60g of hydrated magnesium aluminum silicate clay, 5g of aluminum hydroxide and 35g of activated carbon powder, uniformly stirring, then weighing 8g of polyvinyl alcohol solution with the mass fraction of 1%, mixing with the powder, grinding and granulating;
(3) shaping and first calcination
Weighing 2g of granulated pug, slowly adding the pug into a mold, pressurizing to 15MPa, keeping the pressure for 3min, taking out a sample, repeating the blank molding for 50 times to obtain 50 porous ceramic blanks, and placing the porous ceramic blanks in a kiln for heat preservation at 1300 ℃ for 3h for calcination to obtain porous ceramic;
(4) preparation of surface modifier
Weighing 10g of sodium hydroxide, adding 100g of deionized water, stirring until the solution is clear and transparent to obtain a sodium hydroxide solution, and then weighing 15g of sodium polyacrylate and dissolving the sodium polyacrylate in the sodium hydroxide solution to obtain a surface modifier solution;
(5) surface modification of porous ceramics
And (3) soaking the porous ceramic prepared in the step (3) in the surface modifier solution prepared in the step (4), reacting in a water bath at 70 ℃ for 3h, taking out the reacted porous ceramic, and drying at 150 ℃ for 24h to prepare the porous ceramic adsorption cooling material.
(6) Testing of adsorbent Material Performance
Simulating smoking according to a cigarette smoking model specified in national standard YC/T29-1996, and using a K-type thermocouple temperature detector to detect the temperature of the central position of the middle section of the cigarette filter stick during smoking the cigarette, wherein the smoke temperature is 36.3 ℃; the adsorption resistance of the adsorption material is 834Pa by adopting a conventional adsorption-aided detection method.
Example 3:
(1) raw material sieving
Sequentially sieving hydrous magnesium aluminum silicate clay (attapulgite with the pore diameter of 0.37-0.64 nm, Siheyi Tong bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide with a standard sieve of 200 meshes for later use;
(2) proportioning and granulating
Weighing 55g of hydrated magnesium aluminum silicate clay, 3g of aluminum hydroxide and 42g of activated carbon powder, uniformly stirring, weighing 9g of 7 mass percent polyvinyl alcohol solution, mixing with the powder, grinding and granulating;
(3) shaping and first calcining
Weighing 2g of granulated pug, slowly adding the pug into a mold, pressurizing to 15MPa, keeping the pressure for 1min, taking out a sample, repeating the blank molding for 50 times to obtain 50 porous ceramic blanks, and placing the porous ceramic blanks in a kiln for heat preservation for 1.5h at 1300 ℃ to obtain porous ceramic;
(4) preparation of surface modifier
Weighing 7g of sodium hydroxide, adding 70g of deionized water, stirring until the solution is clear and transparent to obtain a sodium hydroxide solution, and then weighing 7g of sodium polyacrylate and dissolving in the sodium hydroxide solution to obtain a surface modifier solution;
(5) surface modification of porous ceramics
And (4) soaking the porous ceramic prepared in the step (3) in the surface modifier solution prepared in the step (4), reacting in a water bath at 60 ℃ for 1h, taking out the reacted porous ceramic, and drying at 150 ℃ for 12h to prepare the porous ceramic adsorption cooling material.
(6) Testing of adsorbent Material Performance
Simulating smoking according to a cigarette smoking model specified in national standard YC/T29-1996, and using a K-type thermocouple temperature detector to detect the temperature of the cigarette at the central position of the middle section of the cigarette filter stick during smoking, wherein the smoke temperature is 38.7 ℃; the resistance to draw of the adsorbent material was 768Pa as measured by a conventional draw-aid detection method.
Example 4
(1) Raw material sieving
Sequentially sieving hydrous magnesium aluminum silicate clay (attapulgite with the pore diameter of 0.37-0.64 nm, Siheyi Tong bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide with a standard sieve of 200 meshes for later use;
(2) compounding and granulating
Weighing 52g of hydrated magnesium aluminum silicate clay, 4g of aluminum hydroxide and 44g of activated carbon powder, uniformly stirring, then weighing 10g of polyvinyl alcohol solution with the mass fraction of 3%, mixing with the powder, grinding and granulating;
(3) shaping and first calcination
Weighing 2g of granulated pug, slowly adding the pug into a mold, pressurizing to 10MPa, keeping the pressure for 3min, taking out a sample, repeating the blank molding for 50 times to obtain 50 porous ceramic blanks, and placing the porous ceramic blanks in a kiln for heat preservation at 1100 ℃ for 3h for calcination to obtain porous ceramic;
(4) preparation of surface modifier
Weighing 9g of sodium hydroxide, adding 90g of deionized water, stirring until the solution is clear and transparent to obtain a sodium hydroxide solution, and then weighing 9g of sodium polyacrylate and dissolving in the sodium hydroxide solution to obtain a surface modifier solution;
(5) surface modification of porous ceramics
And (4) soaking the porous ceramic prepared in the step (3) in the surface modifier solution prepared in the step (4), reacting in a water bath at 50 ℃ for 1h, taking out the reacted porous ceramic, and drying at 60 ℃ for 24h to prepare the porous ceramic adsorption cooling material.
(6) Testing of adsorbent Material Performance
Simulating smoking according to a cigarette smoking model specified in national standard YC/T29-1996, and using a K-type thermocouple temperature detector to detect the temperature of the central position of the middle section of the cigarette filter stick during smoking the cigarette, wherein the smoke temperature is 37.6 ℃; the resistance to draw of the adsorbent material was 721Pa, as determined by conventional draw-assisted detection methods.
Comparative example 1
(1) Raw material sieving
Sequentially sieving hydrous magnesium aluminum silicate clay (attapulgite with the pore diameter of 0.37-0.64 nm, Siheyi Tong bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide with a standard sieve of 200 meshes for later use;
(2) proportioning and granulating
Weighing 55g of hydrated magnesium aluminum silicate clay and 3g of aluminum hydroxide, uniformly stirring, weighing 9g of 7 mass percent polyvinyl alcohol solution, mixing with the powder, grinding and granulating;
(3) shaping and first calcination
Weighing 2g of granulated pug, slowly adding the pug into a mold, pressurizing to 15MPa, keeping the pressure for 1min, taking out a sample, repeating the blank molding for 29 times to obtain 29 porous ceramic blanks, and placing the porous ceramic blanks in a kiln for heat preservation for 1.5h at 1300 ℃ to obtain porous ceramic;
(4) preparation of surface modifier
Weighing 7g of sodium hydroxide, adding 70g of deionized water, stirring until the solution is clear and transparent to obtain a sodium hydroxide solution, and then weighing 7g of sodium polyacrylate and dissolving in the sodium hydroxide solution to obtain a surface modifier solution;
(5) surface modification of porous ceramics
And (4) soaking the porous ceramic prepared in the step (3) in the surface modifier solution prepared in the step (4), reacting in a water bath at 60 ℃ for 1h, taking out the reacted porous ceramic, and drying at 150 ℃ for 12h to prepare the porous ceramic adsorption cooling material.
(6) Testing of adsorbent Material Performance
Simulating smoking according to a cigarette smoking model specified in national standard YC/T29-1996, and using a K-type thermocouple temperature detector to detect the temperature of the central position of the middle section of the cigarette filter stick during smoking the cigarette, wherein the smoke temperature is 51.6 ℃; the adsorption resistance of the adsorption material is 1467Pa as detected by a conventional adsorption-aided detection method.
(7) And (3) comparison effect: compared with the example 3, the active carbon powder is not added in the preparation process of the adsorption cooling material, the absorption resistance of the adsorption cooling material is obviously increased, the smoke temperature is also improved, and the suction comfort is reduced.
Comparative example 2
(1) Raw material sieving
Sequentially sieving hydrous magnesium aluminum silicate clay (attapulgite with the pore diameter of 0.37-0.64 nm, Siheyi Tong bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide with a standard sieve of 200 meshes for later use;
(2) proportioning and granulating
Weighing 50g of hydrated magnesium aluminum silicate clay, 1g of aluminum hydroxide and 49g of activated carbon powder, uniformly stirring, then weighing 10g of 15 mass percent polyvinyl alcohol solution, mixing with the powder, grinding and granulating;
(3) shaping and first calcination
Weighing 2g of granulated pug, slowly adding the pug into a mold, pressurizing to 10MPa, keeping the pressure for 1min, taking out a sample, repeating the blank molding for 50 times to obtain 50 porous ceramic blanks, and placing the porous ceramic blanks in a kiln for heat preservation for 1.5h at 1100 ℃ to obtain porous ceramic;
(4) testing of adsorbent Material Performance
Simulating smoking according to a cigarette smoking model specified in national standard YC/T29-1996, and using a K-type thermocouple temperature detector to detect the temperature of the central position of the middle section of the cigarette filter stick during smoking the cigarette, wherein the smoke temperature is 43.4 ℃; the adsorption resistance of the adsorption material was 671Pa as detected by a conventional adsorption-assisted detection method.
(5) And (3) comparison effect: compared with the example 1, the surface of the adsorption cooling material is not modified by sodium polyacrylate in the preparation process, and although the smoke temperature and the suction resistance are not obviously changed, the smoke hardly contains glycerol, so that the smoking taste is seriously reduced. Comparative example 3:
(1) raw material sieving
Sequentially sieving hydrous magnesium aluminum silicate clay (attapulgite with the pore diameter of 0.37-0.64 nm, Sihui county Yitong Bentonite Co., Ltd.), activated carbon powder and aluminum hydroxide with a standard sieve of 200 meshes for later use;
(2) proportioning and granulating
Weighing 60g of hydrated magnesium aluminum silicate clay, 5g of aluminum hydroxide and 35g of activated carbon powder, uniformly stirring, then weighing 8g of polyvinyl alcohol solution with the mass fraction of 1%, mixing with the powder, grinding and granulating;
(3) shaping and first calcination
Weighing 2g of granulated pug, slowly adding the pug into a mold, pressurizing to 15MPa, keeping the pressure for 3min, taking out a sample, repeating the blank molding for 50 times to obtain 50 porous ceramic blanks, and placing the porous ceramic blanks in a kiln for heat preservation at 1300 ℃ for 3h for calcination to obtain porous ceramic;
(4) preparation of surface modifier
Weighing 10g of sodium hydroxide, adding 100g of deionized water, stirring until the solution is clear and transparent to obtain a sodium hydroxide solution, and then weighing 15g of vinyl silane, and dissolving in the sodium hydroxide solution to obtain a surface modifier solution;
(5) surface modification of porous ceramics
And (3) soaking the porous ceramic prepared in the step (3) in the surface modifier solution prepared in the step (4), reacting in a water bath at 70 ℃ for 3h, taking out the reacted porous ceramic, and drying at 150 ℃ for 24h to prepare the porous ceramic adsorption cooling material.
(6) Testing of adsorbent Material Performance
Simulating smoking according to a cigarette smoking model specified in national standard YC/T29-1996, and using a K-type thermocouple temperature detector to detect the temperature of the cigarette at the central position of the middle section of the cigarette filter stick during smoking, wherein the smoke temperature is 38.2 ℃; the absorption resistance of the adsorption material is 819Pa when the adsorption material is detected by a conventional absorption-aided detection method.
(7) The contrast effect is as follows: compared with the example 2, the surface modifier is replaced by the conventional vinyl silane from sodium polyacrylate, and although the smoke temperature and the smoke resistance are not obviously changed, the smoke hardly contains glycerol, and the smoking mouthfeel is seriously reduced.
Comparative example 4
(1) Testing of adsorbent Material Performance
When the selective adsorption cooling material is not used, simulated smoking is carried out according to a cigarette smoking model specified in national standard YC/T29-1996, a K-type thermocouple temperature detector is used for detecting the temperature of the central position of the middle section of a cigarette filter stick during smoking of a cigarette, the smoke temperature of the No. 1 port is 62 ℃, and the smoke has burning sensation during sensory smoking; after the 3 rd port, the temperature of the flue gas gradually decreases and finally is basically maintained at 48 ℃.
(2) The contrast effect is as follows: compared with the example 1, when the adsorption cooling material is not used, the smoke temperature of the heated cigarette is obviously higher than the comfortable smoking mouthfeel temperature, and the sensory quality is reduced.
Claims (8)
1. A is applicable to selective adsorption cooling material which characterized in that: the adsorption cooling material is prepared from hydrated magnesium aluminum silicate clay, aluminum source powder, activated carbon powder, a forming agent solution and a surface modifier; wherein: 40-80 parts of hydrated magnesium aluminum silicate clay, 1-10 parts of aluminum source powder, 30-60 parts of activated carbon powder, 5-15 parts of forming agent solution and 1-15 parts of surface modifier;
wherein: the hydrated magnesium aluminum silicate clay is attapulgite; the aluminum source powder is aluminum hydroxide; the surface modifier is sodium polyacrylate; the forming agent solution is a polyvinyl alcohol solution with the mass fraction of 1-15%.
2. The selective adsorption cooling material of claim 1, wherein: 50-60 parts of hydrated magnesium aluminum silicate clay, 1-5 parts of aluminum source powder, 35-49 parts of activated carbon powder, 8-10 parts of forming agent solution and 5-10 parts of surface modifier in sequence.
3. The preparation method of the selective adsorption cooling material suitable for the selective adsorption cooling material according to claim 1, characterized by comprising the following steps: the method comprises the following steps:
(1) preparation of porous ceramics
Sieving and uniformly mixing the hydrated magnesium aluminum silicate clay, the activated carbon powder and the aluminum source powder, then adding a forming agent solution for granulation, adding the granulated pug into a mold for pressurization and pressure maintaining to obtain a ceramic blank, and then placing the ceramic blank into a kiln for calcination to obtain porous ceramic;
(2) preparation of surface modifier
Dissolving a surface modifier in a sodium hydroxide solution to obtain a surface modifier solution;
(3) surface modification of porous ceramics
And (3) soaking the porous ceramic prepared in the step (1) in the surface modifier solution prepared in the step (2), reacting in a water bath at 50-70 ℃ for 1-3 h, taking out the reacted porous ceramic, and drying to prepare the selective adsorption cooling material.
4. The production method according to claim 3, characterized in that: sodium hydroxide in step (2): the mass ratio of the surface modifier is 1: 0.5 to 1.5.
5. The production method according to claim 3, characterized in that: the calcination temperature in the step (1) is 1100-1300 ℃, and the heat preservation is carried out for 1.5-3 h.
6. The production method according to claim 3, characterized in that: the granularity of the activated carbon powder in the step (1) is less than 200 meshes, and the granularity of the aluminum source powder is less than 200 meshes; the pressurizing pressure in the step (1) is 10-15 MPa, and the pressure maintaining time is 1-3 min.
7. The production method according to claim 3, characterized in that: in the step (3), the drying temperature is 60-150 ℃, and the drying time is 12-24 hours.
8. The use of the selective adsorption cooling material of claim 1 for heating cigarettes to cool.
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