CN118022667B - Reaction equipment containing arched nano-sheet composite membrane and preparation method thereof - Google Patents
Reaction equipment containing arched nano-sheet composite membrane and preparation method thereof Download PDFInfo
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- CN118022667B CN118022667B CN202410437787.1A CN202410437787A CN118022667B CN 118022667 B CN118022667 B CN 118022667B CN 202410437787 A CN202410437787 A CN 202410437787A CN 118022667 B CN118022667 B CN 118022667B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 53
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- 238000002360 preparation method Methods 0.000 title abstract description 8
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- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 4
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Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a reaction device containing an arched nano-sheet composite membrane and a preparation method thereof, wherein the reaction device comprises a tank body, a rotating motor, a rotating shaft and a stirring rod, and the reaction device further comprises: the reaction surface switching structure is characterized in that the rotating shaft is hollow, the hollow rotating shaft is communicated with an air compressor connected to the top of the tank body, the air compressor is further connected with a pressure relief valve, the reaction surface switching structure comprises a shaft barrel and an agitating plate, the agitating plate is connected with an agitating rod through an elastic piece, two ejector rods are movably inserted into the top of the agitating rod, the bottom of each ejector rod is connected with an air cylinder, and the upper ends of the ejector rods are fixedly connected with an extending plate; the bottom cooperation structure comprises a guide groove formed in the bottom of the tank body, pushing pieces are arranged in the guide groove, the tops of the two pushing pieces are locked with a cooperation seat, a groove is formed in the middle of the cooperation seat, mixing and reaction between raw materials are enabled to be more uniform and rapid, the dimension and the shape of a product meet the requirements, and accordingly a foundation is laid for forming a composite film.
Description
Technical Field
The invention relates to a reaction device of a composite membrane, in particular to a reaction device of a composite membrane containing arched nano-sheets and a preparation method thereof.
Background
Polyvinyl alcohol (PVA) is the only vinyl polymer which can be used by bacteria as a carbon source and energy, can be degraded by 75% in 46 days under the action of bacteria and enzymes, belongs to a biodegradable polymer material, can be produced in a large scale by a non-petroleum route, is low in price, has excellent oil resistance, solvent resistance and gas barrier property, has unique advantages in the aspects of food and medicine packaging, is applied to prepare a film material by casting film formation based on a solution method, but has the defects of complex process, high cost, low yield and the like, and is difficult to prepare thick-wall and complex-shape products.
In the preparation process of the polyvinyl alcohol composite membrane, a hydrothermal method is adopted, the hydrothermal method is a method for preparing materials by taking water as a solvent and dissolving and recrystallizing powder in a sealed pressure container, the purity of the additive in the container is improved by controlling the reaction effect of the additive of the composite membrane, and the separation performance of the composite membrane is further improved.
The scheme aims to provide the reaction equipment containing the arched nano-sheet composite membrane and the preparation method thereof, and the stirring state of the reactor can be continuously switched under the state that the solution rotates at low speed and high speed, so that the mixing and the reaction between raw materials are more uniform and rapid, the dimension and the morphology of the product meet the requirements, and a foundation is laid for forming the composite membrane.
Disclosure of Invention
The invention provides a reaction device containing an arched nano-sheet composite membrane and a preparation method thereof, which can effectively solve the problems.
The invention is realized in the following way:
The utility model provides a reaction equipment who contains arch nanometer piece complex film, includes a inclosed jar body, the upper end slope of jar body is provided with a rotation motor, rotation motor extends to bevel gear in the jar body, the lower extreme of bevel gear is connected with a rotation axis, evenly be provided with a plurality of puddlers in the rotation axis, reaction equipment still includes:
The reaction surface switching structure is characterized in that the rotating shaft is arranged in a hollow way, the hollow rotating shaft is communicated with an air compressor connected to the top of the tank body, the air compressor is further connected with a pressure release valve, the reaction surface switching structure comprises two shaft cylinders sleeved on the stirring rod, the two shaft cylinders are provided with inclined stirring plates in a fit way, the stirring plates are connected with the stirring rod through an elastic piece, the top of the stirring rod is movably inserted with two ejector rods, the bottom of each ejector rod is connected with an air cylinder, the upper end of each ejector rod is fixedly connected with an extension plate, when the air compressor is not started, the height of each extension plate is lower than that of each stirring plate, when the air compressor is started, the air compressor applies pressure to the hollow rotating shaft, the ejector rods and the extension plates are ejected out after the air cylinders are pressed, and the extension plates outwards push the stirring plates until the heights of the extension plates are higher than that of the stirring plates;
the bottom cooperation structure, the axis of rotation is the arcwall face, bottom cooperation structure contains the guide slot of seting up the inside bottom of jar body, be provided with pushing away the piece in the guide slot, two the top locking of pushing away the piece has the cooperation seat, the middle part of cooperation seat is provided with a recess, when pushing away the piece and pushing up, the recess cover of cooperation seat is established the outside of the arcwall face of axis of rotation.
As a further improvement, an embedded groove is formed in the shaft barrel at a position corresponding to the stirring plate, one side, close to the embedded groove, of the stirring plate is locked with a matching head, and the matching head is movably clamped in the embedded groove.
As a further improvement, the length of the extension plate is equal to the length of the stirring plate, and when the extension plate is not ejected, the extension plate is shielded by the stirring plate.
As a further improvement, the upper half section of the extension plate is a corrugated section, and when the extension plate is ejected out, the solution in the tank body firstly touches the stirring plate which is turned backwards, and then continuously rotates after turbulent flow of the corrugated section.
As a further improvement, limit stops fixedly connected to the stirring rod are arranged on two sides of the shaft cylinder.
As a further improvement, the top of the stirring rod is provided with a groove, a guide column casing is embedded in the groove, sealing rings are arranged at the upper end and the lower end of the inner wall of the guide column casing, and the ejector rod slides up and down in the guide column casing.
As a further improvement, a circle of protection ring sheets are arranged in the groove, collision sensors are arranged in the protection ring sheets, and when the matching seat ascends, the protection ring sheets are positioned on the outer side face of the bottom of the rotating shaft.
As a further improvement, a plurality of separation sheets are arranged in the tank body, and the separation sheets and the reaction surface switching structure are arranged at intervals.
The invention also provides a preparation method of the arched nano-sheet-containing composite membrane, which comprises the reaction equipment of the arched nano-sheet-containing composite membrane and comprises the following steps:
s1, performing S1; adding zinc acetate and ethanol into a tank body, setting corresponding temperature and rotating speed, driving a rotating motor to drive a stirring rod to stir solution in the tank body by the rotating shaft, washing the obtained zinc oxide to be neutral by deionized water, and drying for later use;
s2, performing S2; mixing the prepared zinc oxide with deionized water and an aqueous solvent, and stirring by using a refiner to obtain uniform zinc oxide dispersion;
S3, performing S3; heating, stirring and mixing a high polymer and a solvent to obtain a transparent and uniform high polymer solution;
s4, performing S4; stirring and mixing the prepared high polymer solution, zinc oxide dispersion liquid and a cross-linking agent, and standing for a period of time to remove bubbles to obtain a mixed membrane liquid;
S5, performing S5; and (3) coating a layer of high polymer solution on the substrate by blade coating, coating the prepared mixed film solution on the second layer, and then drying and cooling to obtain the arched zinc oxide/high polymer composite film.
As a further improvement, the S1 further includes: the air compressor is intermittently opened and closed, and the air cylinder on the stirring rod is intermittently pushed out to continuously change the contact area between the reaction surface switching structure and the solution.
The beneficial effects of the invention are as follows:
In the existing high-pressure reaction kettle adopting the hydrothermal method, the solution is generally enabled to achieve the effect of turbulent flow by adjusting the rotating speed of a motor, but in practice, although the mode can play a certain role in conversion, the stirring area is invariable, so that the turbulent flow effect on the solution is limited, and the solution still cannot achieve the purpose of rapid mixing.
In order to ensure that the stirring plate cannot be separated from the whole stirring rod in the rotating process, the stirring rod is tensioned by adopting the elastic piece, so that the stirring plate can be ejected out and reset after being fixed, and the stirring plate is provided with the embedded groove and the matching head at the matching position of the shaft cylinder, so that the stirring rod can be tightly attached to the stirring rod in the rotating process of the stirring plate, and is supported to a certain extent when the stirring plate contacts with a solution, so that deflection and shaking are not easy to occur.
After the extension plate protrudes, the solution can flow along the extension plate after contacting the stirring plate.
Under the condition of frequent change of stirring area, the hollow rotating shaft is extremely easy to be unstable, so that the situation of 'head light and foot heavy' is caused, therefore, the invention sets the bottom matching structure on the basis of the reaction surface switching structure, and the groove of the matching seat is sleeved outside the rotating shaft by pushing up the pushing piece, so that the bottom of the rotating shaft can always have a limiting protection means in the rotating process of the rotating shaft, the phenomenon of centrifugal deflection caused by the limitation of length and weight is avoided, and the equipment is more stable in running.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a reaction apparatus containing arched nano-sheet composite membrane according to the present invention.
FIG. 2 is a schematic top view of a reaction apparatus containing arched nano-sheet composite membranes according to the present invention.
Figure 3 is a cross-sectional view of the invention at A-A in figure 2.
Figure 4 is a schematic isometric view of the invention at A-A in figure 2.
Fig. 5 is a schematic perspective view of a reaction surface switching structure according to the present invention.
Fig. 6 is a schematic top view of a reaction surface switching structure according to the present invention.
Fig. 7 is a cross-sectional view of the present invention at B-B in fig. 6.
In the figure:
The device comprises a tank body-10, an air compressor-11, a separation sheet-12, a rotating motor-20, a bevel gear-30, a rotating shaft-31, a stirring rod-32, a limit stop-321, a guide column casing-322, a reaction surface switching structure-40, a shaft casing-41, an embedded groove-411, a stirring plate-42, a matching head-421, an elastic piece-43, a push rod-44, a cylinder-45, an extension plate-46, a bottom matching structure-50, a guide groove-51, a pushing piece-52, a matching seat-53, a groove-54 and a protection ring sheet-541.
Detailed Description
For the purpose of making embodiments of the present invention fall within the scope of the present invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as referring to purposes, technical solutions and advantages of the present invention in any way. All other implementations, which can be derived by a person skilled in the art without making any inventive effort, show or imply relative importance or implicitly indicate the number of technical features indicated on the basis of the implementations in the invention. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 7, a reaction apparatus including an arched nano-sheet composite film, which includes a closed tank 10, a rotating motor 20 is disposed at the upper end of the tank 10 in an inclined manner, the rotating motor 20 extends to a bevel gear 30 in the tank 10, a rotating shaft 31 is connected to the lower end of the bevel gear 30, and a plurality of stirring rods 32 are uniformly disposed on the rotating shaft 31, and the reaction apparatus further includes: the reaction surface switching structure 40, the rotation shaft 31 is hollow, the hollow rotation shaft 31 is communicated with an air compressor 11 connected to the top of the tank 10, the air compressor 11 is further connected with a pressure release valve, the reaction surface switching structure 40 comprises two shaft barrels 41 sleeved on the stirring rod 32, two inclined stirring plates 42 are attached to the two shaft barrels 41, the stirring plates 42 are connected with the stirring rod 32 through an elastic piece 43, two ejector rods 44 are movably inserted at the top of the stirring rod 32, an air cylinder 45 is connected to the bottom of the ejector rods 44, an extension plate 46 is fixedly connected to the upper end of the ejector rods 44, when the air compressor 11 is not started, the height of the extension plate 46 is lower than that of the stirring plates 42, when the air compressor 11 is started, the air compressor 11 applies pressure into the hollow rotation shaft 31, after the air cylinder 45 is pressed, the ejector rods 44 and the extension plate 46 are ejected out, the extension plate 46 pushes the stirring plates 42 outwards until the height of the extension plate 46 is higher than that of the stirring plates 42; the bottom cooperation structure 50, the axis of rotation 31 is the arcwall face, the bottom cooperation structure 50 contains and offers the guide slot 51 of jar body 10 inside bottom, be provided with pushing away in the guide slot 51 and push away the piece 52, two the top locking of pushing away the piece 52 has the cooperation seat 53, the middle part of cooperation seat 53 is provided with a recess 54, when pushing away the piece 52 and pushing up, the recess 54 cover of cooperation seat 53 is established the outside of arcwall face of axis of rotation 31.
In the present embodiment, since the air compressor 11 is required as a power source, the air compressor 11 can be disposed just above the entire tank 10, and the hollow rotation shaft 31 can be pressurized.
Since the air compressor 11 is disposed right above the tank 10, the rotating motor 20 cannot be disposed right above the tank 10, in this embodiment, the rotating motor 20 is disposed obliquely, and drives a bevel gear 30 to rotate through an output end penetrating into the device, so that the bevel gear 30 drives a rotating shaft 31 and a stirring rod 32 on the rotating shaft 31 to stir the raw material solution.
In the existing high-pressure reaction kettle adopting the hydrothermal method, the solution is generally enabled to reach the effect of turbulent flow by adjusting the rotating speed of a motor, but in practice, although the mode can play a certain role in changing, the stirring area is always unchanged, so that the turbulent flow effect on the solution is limited, and the solution still cannot reach the purpose of rapid mixing.
In practice, the original agitating plate 42 is at an angle of about 50 ° to the horizontal, and the angle after being ejected is changed to 60 ° and the contact area with the solution is greatly increased.
In order to ensure that the stirring plate 42 cannot be separated from the whole stirring rod 32 in the rotating process, the elastic piece 43 is adopted to tighten the stirring plate, so that the stirring plate can be ejected out and reset when being fixed, preferably, an embedded groove is formed in the shaft barrel 41 corresponding to the stirring plate 42, one side of the stirring plate 42 close to the embedded groove is locked with a matching head, the matching head is movably clamped in the embedded groove, and the matching groove and the matching head are arranged at the matching position of the stirring plate 42 and the shaft barrel 41, so that the stirring plate 42 can be tightly attached to the stirring rod 32 in the rotating process, has a certain support when being contacted with a solution, and is not easy to swing and shake.
In the normal agitation stage, the length of the extension plate 46 is equal to the length of the agitation plate 42, and when the extension plate 46 is not ejected, the extension plate 46 is shielded by the agitation plate 42 so as to continuously contact the solution with a stable agitation surface until it is required to change the agitation area.
When the stirring area needs to be changed, that is, after the extending plate 46 protrudes, the solution flows along the extending plate 46 after contacting with the stirring plate 42, in this embodiment, the upper half section of the extending plate 46 is a corrugated section, after the extending plate 46 is ejected, the solution in the tank 10 first contacts the stirring plate 42 after being changed, and then continues to rotate after being turbulent by the corrugated section, so that a turbulent state is formed when the solution passes through the corrugated section, and further, the mixing effect between different raw materials is better.
In order to further improve the turbulence effect, a plurality of separation sheets 12 are disposed inside the tank 10, the separation sheets 12 are spaced from the reaction surface switching structure 40, and a plurality of turbulence chambers are manufactured by continuously changing the separation effect of the reaction surface switching structure 40 and the separation sheets 12, so that the reaction is more intense.
In the process that the stirring plate 42 is pushed up, the shaft cylinder 41 is actually rotating, in order to avoid the phenomenon that the shaft cylinder 41 slides away from the original position, both sides of the shaft cylinder 41 are provided with limit stops 321 fixedly connected on the stirring rod 32, and the shaft cylinder 41 can only rotate and can not move left and right under the limit of the limit stops 321 at both sides, so that the stirring plate 42 is not deviated, and the stirring plate 42 is limited by the elastic piece 43, so that the displacement range of the stirring plate is always in a controllable area.
In order to avoid that the ejector rod 44 has external solution to enter the stirring rod 32 in the process of ejecting the extension plate 46, a groove is formed in the top of the stirring rod 32, a guide column casing 322 is embedded in the groove, sealing rings are arranged at the upper end and the lower end of the inner wall of the guide column casing 322, and the ejector rod 44 slides up and down in the guide column casing 322, so that a sealing effect can be achieved under the condition of up and down sliding.
Under the condition of frequent change of stirring area, the hollow rotating shaft 31 is extremely easy to be unstable, so that the situation of 'head light and foot heavy' is caused, therefore, the invention sets the bottom matching structure 50 on the basis of the reaction surface switching structure 40, and the groove 54 of the matching seat 53 is sleeved outside the rotating shaft 31 by pushing up the pushing piece 52, so that the bottom of the rotating shaft 31 can always have a limit protection means in the rotating process of the rotating shaft 31, and the phenomenon of centrifugal deflection caused by the limit of length and weight is avoided, so that the equipment is more stable in running.
In the stage of guiding and protecting the rotating shaft 31 through the groove 54, the phenomenon that the rotating shaft 31 is deviated is inevitably caused occasionally, in this regard, a circle of protection ring plates 541 are arranged in the groove 54, collision sensors are arranged in the protection ring plates 541, when the matching seat 53 ascends, the protection ring plates 541 are positioned on the outer side surface of the bottom of the rotating shaft 31, namely, a warning mechanism is additionally arranged at the bottom of the rotating shaft 31, when the rotating shaft 31 starts to deviate from the shaft, the collision sensors are touched, and when the collision sensors sense the touch of the rotating shaft 31, namely, the collision sensors indicate that the rotating shaft 31 deviates at this moment, and stop adjustment is needed.
In another embodiment of the present invention, there is also provided a method for preparing a composite film containing arched nano-sheets, including the above-mentioned reaction apparatus containing arched nano-sheets, comprising the steps of:
s1, performing S1; adding zinc acetate and ethanol into the tank body 10, setting corresponding temperature and rotating speed, driving the rotating motor 20 to drive the stirring rod 32 to stir the solution in the tank body 10 by the rotating shaft 31, and washing the obtained zinc oxide to be neutral by deionized water and drying for later use;
s2, performing S2; mixing the prepared zinc oxide with deionized water and an aqueous solvent, and stirring by using a refiner to obtain uniform zinc oxide dispersion;
S3, performing S3; heating, stirring and mixing a high polymer and a solvent to obtain a transparent and uniform high polymer solution;
s4, performing S4; stirring and mixing the prepared high polymer solution, zinc oxide dispersion liquid and a cross-linking agent, and standing for a period of time to remove bubbles to obtain a mixed membrane liquid;
S5, performing S5; and (3) coating a layer of high polymer solution on the substrate by blade coating, coating the prepared mixed film solution on the second layer, and then drying and cooling to obtain the arched zinc oxide/high polymer composite film.
In the embodiment, the ethanol consumption is 50-80 mL, the molar mass of zinc acetate is 0.1-5 mol, the stirring speed is 10-90 r/min, the reaction temperature is 100-240 ℃ and the reaction time is 5-72 h.
Wherein, the volume ratio of the deionized water and the aqueous solvent used in S2 is (0.1-1): 1, and the dosage of the zinc oxide is 1% of the total mass of the deionized water and the aqueous solvent used; the aqueous solvent is one or more of ethanol, glycerol, polyethylene glycol, glycolic acid, triethanolamine, propylene glycol methyl ether and dimethylformamide; the stirring speed is 8000-30000 r/min.
Wherein the high molecular polymer used in the S3 is one or more of chitosan, polyvinyl alcohol, polyethylene glycol, polystyrene, polyvinylidene fluoride, polyamide resin, polyimide, silsesquioxane, polydimethylsiloxane, fluoroalkyl compound, polyether amide block copolymer, styrene-butadiene-styrene block copolymer, polytetrafluoroethylene and polyarylene sulfide sulfone imide; the solvent is one or more of deionized water, toluene, dimethylformamide, isopropanol and benzamide; the heating temperature is 50-120 ℃ and the heating time is 1-8 h; the mass concentration of the obtained high molecular polymer solution is 1-10wt%.
Specifically, the dosage of the high polymer solution and the zinc oxide dispersion in S4 is converted according to the mass ratio of the high polymer to the zinc oxide of 1 (0.0004-0.01); the cross-linking agent is one or more of p-toluenesulfonic acid, acetic acid, succinic acid, maleic acid, dimethylaminopropylamine, 2-ethyl-4-methylimidazole, glyoxal, ethylenediamine tetraacetic acid and citric acid, and the mass ratio of the dosage to the used high molecular polymer is (0.001-1): 1.
Wherein the substrate in S5 is any one of nylon 66, nylon 6, polyethersulfone, polytetrafluoroethylene, polyvinylidene fluoride, polypropylene and mixed cellulose, and the aperture is 0.2-0.8 μm; scraping for 1-10 times, wherein the scraping speed is 5-200 mm/s; the temperature of the drying is 60-160 ℃ and the time is 0.5-48 h; the thickness of the obtained composite film is 10-100 mu m.
Further, the step S1 further includes: the air compressor 11 is intermittently opened and closed, and the air cylinder 45 on the stirring rod 32 is intermittently pushed out to continuously change the contact area between the reaction surface switching structure 40 and the solution.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a reaction equipment who contains arch nanometer piece complex film, includes a inclosed jar body (10), the upper end slope of jar body (10) is provided with one and rotates motor (20), rotate motor (20) extend to bevel gear (30) in jar body (10), the lower extreme of bevel gear (30) is connected with a rotation axle (31), evenly be provided with a plurality of puddlers (32) on rotation axle (31), its characterized in that, reaction equipment still includes:
The reaction surface switching structure (40), the rotation shaft (31) is arranged in a hollow way, the hollow rotation shaft (31) is communicated with an air compressor (11) connected to the top of the tank body (10), the air compressor (11) is further connected with a pressure release valve, the reaction surface switching structure (40) comprises two shaft cylinders (41) sleeved on the stirring rod (32), an inclined stirring plate (42) is attached to the two shaft cylinders (41), the stirring plate (42) is connected with the stirring rod (32) through an elastic piece (43), two ejector rods (44) are movably inserted into the top of the stirring rod (32), an air cylinder (45) is connected to the bottom of the ejector rods (44), an extending plate (46) is fixedly connected to the upper end of the ejector rods (44), when the air compressor (11) is not started, the height of the extending plate (46) is lower than that of the stirring plate (42), when the air compressor (11) is started, the air compressor (11) is pushed out of the hollow rotation shaft (31) to the height of the stirring plate (46) by the air cylinder (45), and the height of the extending plate (46) is enabled to be higher than that of the extending plate (46);
The bottom matching structure (50) is characterized in that the rotating shaft (31) is an arc-shaped surface, the bottom matching structure (50) comprises a guide groove (51) formed in the inner bottom of the tank body (10), pushing pieces (52) are arranged in the guide groove (51), matching seats (53) are locked at the tops of the two pushing pieces (52), a groove (54) is formed in the middle of each matching seat (53), and when the pushing pieces (52) push upwards, the grooves (54) of the corresponding matching seats (53) are sleeved outside the arc-shaped surface of the rotating shaft (31);
the length of the extending plate (46) is equal to the length of the stirring plate (42), and when the extending plate (46) is not ejected, the extending plate (46) is shielded by the stirring plate (42);
The upper half section of the extension plate (46) is a corrugated section, and when the extension plate (46) is ejected, the solution in the tank body (10) firstly touches the stirring plate (42) which is turned backwards, and then continuously rotates after being turbulent by the corrugated section.
2. The reaction equipment containing the arched nano-sheet composite membrane according to claim 1, wherein an embedded groove is formed in the shaft (41) corresponding to the stirring plate (42), one side, close to the embedded groove, of the stirring plate (42) is locked with a matching head, and the matching head is movably clamped in the embedded groove.
3. The reaction equipment containing arched nano-sheet composite membrane according to claim 1, wherein limit stops (321) fixedly connected to the stirring rod (32) are arranged on two sides of the shaft cylinder (41).
4. A reaction apparatus containing arched nano-sheet composite membrane according to claim 3, wherein a groove is provided at the top of the stirring rod (32), a guiding cylinder (322) is embedded in the groove, sealing rings are provided at the upper and lower ends of the inner wall of the guiding cylinder (322), and the ejector rod (44) slides up and down in the guiding cylinder (322).
5. The reaction apparatus comprising an arched nano-sheet composite film according to claim 1, wherein a ring of guard ring sheets (541) is provided inside the groove (54), a collision sensor is provided in the guard ring sheets (541), and the guard ring sheets (541) are located on the outer side surface of the bottom of the rotating shaft (31) when the mating seat (53) is lifted.
6. The reaction equipment containing the arched nano-sheet composite membrane according to claim 1, wherein a plurality of separation sheets (12) are arranged in the tank body (10), and the separation sheets (12) are arranged at intervals with the reaction surface switching structure (40).
7. A method for preparing a composite membrane containing arched nano-sheets, comprising a reaction apparatus containing arched nano-sheets according to any one of claims 1 to 6, characterized by comprising the steps of:
S1, performing S1; adding zinc acetate and ethanol into a tank body (10), setting corresponding temperature and rotating speed, driving a rotating motor (20), enabling a rotating shaft (31) to drive a stirring rod (32) to stir a solution in the tank body (10), washing the obtained zinc oxide to be neutral by deionized water, and drying for later use;
s2, performing S2; mixing the prepared zinc oxide with deionized water and an aqueous solvent, and stirring by using a refiner to obtain uniform zinc oxide dispersion;
S3, performing S3; heating, stirring and mixing a high polymer and a solvent to obtain a transparent and uniform high polymer solution;
s4, performing S4; stirring and mixing the prepared high polymer solution, zinc oxide dispersion liquid and a cross-linking agent, and standing for a period of time to remove bubbles to obtain a mixed membrane liquid;
S5, performing S5; and (3) coating a layer of high polymer solution on the substrate by blade coating, coating the prepared mixed film solution on the second layer, and then drying and cooling to obtain the arched zinc oxide/high polymer composite film.
8. The method for preparing a composite film containing arched nano-sheets according to claim 7, wherein S1 further comprises: the air compressor (11) is intermittently opened and closed, and the air cylinder (45) on the stirring rod (32) is intermittently pushed out, so that the contact area between the reaction surface switching structure (40) and the solution is continuously changed.
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| CN109294003A (en) * | 2018-09-03 | 2019-02-01 | 太原理工大学 | A kind of chitosan containing ZnO/sodium alginate antimicrobial preservative film and preparation method thereof |
| CN210159473U (en) * | 2019-05-21 | 2020-03-20 | 杭州明云混凝土有限公司 | Stirring blade structure for large-scale stirring device |
| CN213663435U (en) * | 2020-11-05 | 2021-07-13 | 黑龙江福康生物科技股份有限公司 | Bovine colostrum powder concentration equipment |
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| KR101692515B1 (en) * | 2015-04-06 | 2017-01-03 | 동국대학교 산학협력단 | Biodegradable Ultraviolet Light Screening Packaging Film Comprising Biopolymers and Grapefruit Seed Extract, and Manufacturing Method Thereof |
| CN206762884U (en) * | 2017-05-17 | 2017-12-19 | 上海集承环保技术有限公司 | A kind of agitating device of reactor |
| JP7327537B2 (en) * | 2017-12-26 | 2023-08-16 | 三菱ケミカル株式会社 | Method for producing polyester film |
| CN111250024A (en) * | 2020-03-13 | 2020-06-09 | 丁启芳 | Reaction kettle |
| CN219507550U (en) * | 2023-02-08 | 2023-08-11 | 湖北昌润明科技有限公司 | Raw material lifting machine for production and processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109294003A (en) * | 2018-09-03 | 2019-02-01 | 太原理工大学 | A kind of chitosan containing ZnO/sodium alginate antimicrobial preservative film and preparation method thereof |
| CN210159473U (en) * | 2019-05-21 | 2020-03-20 | 杭州明云混凝土有限公司 | Stirring blade structure for large-scale stirring device |
| CN213663435U (en) * | 2020-11-05 | 2021-07-13 | 黑龙江福康生物科技股份有限公司 | Bovine colostrum powder concentration equipment |
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