Magnetic field-induced vacuum solidification device for composite film production

Abstract

The utility model relates to composite film preparation technical field, concretely is a kind of magnetic field induction vacuum solidification device for composite film preparation, including box, side door is hingedly installed in box one side, first electromagnetic module is installed in box bottom, lifting module is installed in box top, the second electromagnetic module that is compatible with first electromagnetic module is fixed in lifting module bottom end, vacuum suction mechanism is connected in box one side, heating temperature control module is provided in box, the utility model can realize the magnetic field induction vacuum solidification purpose of PVA / LM@Ni composite film, improve the planar close arrangement degree of LM@Ni droplet in composite film, and then improve the quasi-isotropic thermal conductivity of composite film.

Description

Technical Field

[0001] This utility model relates to the field of composite film preparation technology, specifically a magnetic field-induced vacuum curing device for composite film preparation. Background Technology

[0002] As is well known, magnetic field-induced alignment is one of the most promising strategies for constructing continuous in-plane thermal conduction networks. When the magnetic moment energy exceeds the Brownian motion thermal energy, aggregated magnetic fillers self-assemble into chain-like structures aligned with the magnetic field direction. This method not only forms continuous thermal conduction paths through magnetic orientation but also precisely controls the degree of filler alignment. Notably, by introducing magnetic particles into liquid magnets (LMs), researchers can prepare liquid magnet droplets that possess both magnetic responsiveness and fluidity. These functional droplets can be directionally manipulated under the influence of a magnetic field, thereby achieving precise spatial organization within a polymer matrix. Using LMs doped with magnetic nickel nanoparticles as thermally conductive fillers and biodegradable flexible PVA as a matrix, a quasi-isotropic thermal conductivity M-PVA / LM@Ni composite material was prepared using a simple magnetic field-induced strategy, benefiting from the close alignment of LM@Ni droplets in the planar direction under magnetic field induction. A magnetic field-induced vacuum curing device is required during the preparation process to address the aforementioned challenges. Utility Model Content

[0003] The purpose of this invention is to provide a magnetic field-induced vacuum curing device for preparing composite films, so as to solve the problems mentioned in the background art.

[0004] The technical solution of this utility model is: a magnetic field-induced vacuum curing device for composite film preparation, comprising a box body, a side door hinged to one side of the box body, a first electromagnetic module installed at the bottom of the box body, a lifting module installed at the top of the box body, a second electromagnetic module adapted to the first electromagnetic module fixed at the bottom of the lifting module, a vacuum suction mechanism connected to one side of the box body, a heating temperature control module provided inside the box body, and a display control module connected to the first electromagnetic module, the second electromagnetic module, the lifting module, the vacuum suction mechanism, and the heating temperature control module.

[0005] The aforementioned components achieve the following effects: opening the side door allows a circular mold containing PVA / LM@Ni suspension to be placed into the chamber; the display and control module synchronously and comprehensively controls all components, controlling the first and second electromagnetic modules to generate a magnetic field; controlling the lifting module to extend and retract to adjust the distance between the second and first electromagnetic modules to precisely control the magnetic field strength; controlling the vacuum suction mechanism to extract air from the chamber to create a vacuum environment, preventing air bubbles from forming during the curing process, thus matching the further bubble control requirements after ultrasonic debubbling in the production process; and controlling the heating temperature control module to stabilize the temperature inside the chamber. This achieves the goal of magnetic field-induced vacuum curing of the PVA / LM@Ni composite film, improving the planar compactness of the LM@Ni droplets within the composite film, thereby increasing the quasi-isotropic thermal conductivity of the composite film.

[0006] Preferably, the first electromagnetic module and the second electromagnetic module include a substrate and a group of electromagnetic wires uniformly distributed within the substrate.

[0007] The effects achieved by the above components are as follows: the substrate provides fixed support for the electromagnetic wire group, and the uniformly distributed electromagnetic wire group can form a uniform magnetic field in the box after being energized, ensuring that the LM@Ni droplets in each area of ​​the PVA / LM@Ni suspension in the mold inside the box can be subjected to a consistent magnetic field force; the purpose of magnetic field uniformity control is achieved, the uniformity of LM@Ni droplet arrangement in the composite film is improved, and thus the consistency of thermal conductivity of the composite film is improved.

[0008] Preferably, the vacuum suction mechanism includes a vacuum pump, a gas guide pipe connected to the housing, and an electromagnetic valve installed on the gas guide pipe.

[0009] The effects achieved by the above components are as follows: after the display control module controls the opening of the solenoid valve, the vacuum pump connects to the inside of the chamber through the air guide pipe, quickly extracts the air inside the chamber, and maintains a vacuum state inside the chamber; this achieves the goal of eliminating air bubble interference in the curing environment, reduces the generation of air bubbles during the curing process of PVA / LM@Ni composite film, and thus improves the density of the composite film.

[0010] Preferably, the lifting module includes a side block fixed to the top of the housing, a top plate fixed to the top of the side block, and an electric lifting rod connected between the top plate and the second electromagnetic module.

[0011] The effects achieved by the above components are as follows: the side block is fixed to the top of the box to provide support for the top plate, the top plate fixes the electric lifting rod, the display control module controls the extension and retraction of the electric lifting rod, and drives the second electromagnetic module to move up and down to adjust its distance from the first electromagnetic module, adapting to the different magnetic field strength requirements of LM@Ni suspensions with different nickel nanoparticle addition amounts; the purpose of flexible adjustment of magnetic field strength is realized, the adaptability of the device to the preparation of PVA / LM@Ni composite films with different formulations is increased, and the versatility of the device is improved.

[0012] Preferably, the heating temperature control module includes a heating tube disposed on the inner wall of the chamber and a temperature sensor.

[0013] The effect achieved by the above components is as follows: the temperature sensor installed on the inner wall of the chamber detects the temperature inside the chamber in real time and feeds the temperature data back to the display and control module. The display and control module controls the heating tube to start and stop according to the feedback data, and stabilizes the temperature inside the chamber at the curing temperature of 25℃. This achieves the goal of precise control of the curing temperature, improves the curing quality of the PVA / LM@Ni composite film, and thus improves the stability of the mechanical properties and thermal conductivity of the composite film.

[0014] This invention provides an improved magnetic field-induced vacuum curing device for composite film preparation, which has the following improvements and advantages compared with the prior art:

[0015] This invention uses a display control module to synchronously control all components. It controls the first and second electromagnetic modules to generate a magnetic field by energizing them, controls the lifting module to extend and retract to adjust the distance between the second and first electromagnetic modules to precisely control the magnetic field strength, controls the vacuum suction mechanism to extract air from the chamber to create a vacuum environment, avoids the generation of air bubbles during the curing process, and thus meets the further bubble control requirements after ultrasonic debubbling in the production process. It controls the heating temperature control module to stabilize the temperature inside the chamber, thereby achieving the purpose of magnetic field-induced vacuum curing of PVA / LM@Ni composite film, improving the planar compactness of LM@Ni droplets in the composite film, and thus improving the quasi-isotropic thermal conductivity of the composite film. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Cabinet; 2. Side door; 3. Display and control module; 4. Vacuum suction mechanism; 41. Vacuum pump; 42. Air duct; 43. Solenoid valve; 5. First electromagnetic module; 6. Second electromagnetic module; 7. Heating and temperature control module; 8. Lifting module; 81. Top plate; 82. Side block; 83. Electric lifting rod. Detailed Implementation

[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] This invention provides an improved magnetic field-induced vacuum curing device for preparing composite films. The technical solution of this invention is as follows:

[0023] In embodiments of this utility model, such as Figures 1-2 As shown, a magnetic field-induced vacuum curing device for composite film preparation includes a housing 1, a side door 2 hinged to one side of the housing 1, a first electromagnetic module 5 installed at the bottom of the housing 1, a lifting module 8 installed at the top of the housing 1, and a second electromagnetic module 6 adapted to the first electromagnetic module 5 fixed at the bottom of the lifting module 8. The first electromagnetic module 5 and the second electromagnetic module 6 include a substrate and a uniformly distributed electromagnetic wire group installed in the substrate. The substrate provides fixed support for the electromagnetic wire group. After being energized, the uniformly distributed electromagnetic wire group can form a uniform magnetic field in the housing 1 to ensure that P in the mold inside the housing 1... All LM@Ni droplets in the VA / LM@Ni suspension are subjected to a uniform magnetic field force. A vacuum suction mechanism 4 is connected to one side of the chamber 1. A heating temperature control module 7 is installed inside the chamber 1. The heating temperature control module 7 includes a heating tube installed on the inner wall of the chamber 1 and a temperature sensor. The temperature sensor installed on the inner wall of the chamber 1 detects the temperature inside the chamber 1 in real time and feeds the temperature data back to the display control module 3. The display control module 3 controls the heating tube to start and stop according to the feedback data, so as to stabilize the temperature inside the chamber 1 at the curing temperature of 25℃, thus achieving the purpose of precise control of the curing temperature.

[0024] The chamber 1 is equipped with a display and control module 3 connected to the first electromagnetic module 5, the second electromagnetic module 6, the lifting module 8, the vacuum suction mechanism 4, and the heating and temperature control module 7. Opening the side door 2 allows a circular mold containing PVA / LM@Ni suspension to be placed into the chamber 1. The display and control module 3 synchronously controls all components, controlling the first electromagnetic module 5 and the second electromagnetic module 6 to generate a magnetic field, controlling the lifting module 8 to extend and retract to adjust the distance between the second electromagnetic module 6 and the first electromagnetic module 5 to precisely control the magnetic field strength, controlling the vacuum suction mechanism 4 to extract air from the chamber 1 to create a vacuum environment, avoiding the generation of air bubbles during the curing process, thus meeting the further bubble control requirements after ultrasonic debubbling in the production process, and controlling the heating and temperature control module 7 to stabilize the temperature inside the chamber 1; thus achieving the purpose of magnetic field-induced vacuum curing of PVA / LM@Ni composite film.

[0025] In an embodiment of this utility model, the vacuum suction mechanism 4 includes a vacuum pump 41, a gas guide pipe 42 that connects the vacuum pump 41 to the housing 1, and an electromagnetic valve 43 that is provided on the gas guide pipe 42. After the display control module 3 controls the electromagnetic valve 43 to open, the vacuum pump 41 connects to the inside of the housing 1 through the gas guide pipe 42 and quickly extracts the air from the housing 1 to maintain a vacuum state inside the housing 1.

[0026] In an embodiment of this utility model, the lifting module 8 includes a side block 82 fixed to the top of the housing 1, a top plate 81 fixed to the top of the side block 82, and an electric lifting rod 83 connected between the top plate 81 and the second electromagnetic module 6. The side block 82 fixed to the top of the housing 1 provides support for the top plate 81, and the top plate 81 fixes the electric lifting rod 83. The display control module 3 controls the extension and retraction of the electric lifting rod 83, which drives the second electromagnetic module 6 to move up and down to adjust its distance from the first electromagnetic module 5, thus adapting to the different magnetic field strength requirements of LM@Ni suspensions with different nickel nanoparticle addition amounts.

[0027] The working principle of the magnetic field-induced vacuum curing device for composite film preparation provided by this utility model is as follows:

[0028] Preparation stage: Open side door 2, place the circular mold containing PVA / LM@Ni suspension into the box 1, close side door 2, and start the device through display control module 3;

[0029] Vacuum environment construction: The display control module 3 controls the opening of the solenoid valve 43 of the vacuum suction mechanism 4, and the vacuum pump 41 draws air from the chamber 1 through the air guide pipe 42 to create a vacuum environment in the chamber 1 (to avoid the generation of air bubbles during the curing process).

[0030] Magnetic field control: The display control module 3 controls the extension and retraction of the electric lifting rod 83 of the lifting module 8 (supported by the side block 82 and the top plate 81), adjusts the distance between the second electromagnetic module 6 and the first electromagnetic module 5, and simultaneously controls the electromagnetic wire group (the electromagnetic wire group fixed on the substrate) of both to be energized, generating a uniform and intensity-matched magnetic field, inducing the LM@Ni droplets in the mold to be closely arranged along the direction of the magnetic field.

[0031] Temperature control: The temperature sensor of the heating temperature control module 7 detects the temperature inside the chamber 1 in real time and feeds it back to the display control module 3. The display control module 3 adjusts the operation of the heating tube to stabilize the temperature inside the chamber 1 at 25℃.

[0032] Curing complete: Under vacuum, magnetic field induction and constant temperature conditions, the PVA / LM@Ni suspension is cured for 9 hours to form a composite film. The components are shut down by the display control module 3 and the side door 2 is opened to take out the finished product.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic field-induced vacuum curing device for preparing composite films, comprising a housing (1), wherein a side door (2) is hinged to one side of the housing (1), characterized in that: The bottom of the box (1) is equipped with a first electromagnetic module (5), the top of the box (1) is equipped with a lifting module (8), the bottom of the lifting module (8) is fixed with a second electromagnetic module (6) that is compatible with the first electromagnetic module (5), a vacuum suction mechanism (4) is connected to one side of the box (1), a heating temperature control module (7) is provided inside the box (1), and a display control module (3) is provided in the box (1) that is connected to the first electromagnetic module (5), the second electromagnetic module (6), the lifting module (8), the vacuum suction mechanism (4) and the heating temperature control module (7).

2. The magnetic field-induced vacuum curing apparatus for composite film preparation according to claim 1, characterized in that: The first electromagnetic module (5) and the second electromagnetic module (6) include a substrate and a group of electromagnetic wires uniformly distributed within the substrate.

3. The magnetic field-induced vacuum curing apparatus for composite film preparation according to claim 1, characterized in that: The vacuum suction mechanism (4) includes a vacuum pump (41), the vacuum pump (41) is connected to the housing (1) by a gas guide pipe (42), and an electromagnetic valve (43) is provided on the gas guide pipe (42).

4. The magnetic field-induced vacuum curing apparatus for composite film preparation according to claim 1, characterized in that: The lifting module (8) includes a side block (82) fixed to the top of the housing (1), a top plate (81) fixed to the top of the side block (82), and an electric lifting rod (83) connected between the top plate (81) and the second electromagnetic module (6).

5. The magnetic field-induced vacuum curing apparatus for composite film preparation according to claim 1, characterized in that: The heating temperature control module (7) includes a heating tube and a temperature sensor installed on the inner wall of the box (1).

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