Polymer composite blending device for nanofiller dispersion

Abstract

The utility model relates to high polymer material technical field especially a kind of high polymer composite material blending device for nanofiller dispersion, including, mixing box;Agitating mechanism is set in the top of the mixing box, the agitating mechanism includes composite stirring assembly, the composite stirring assembly is inserted into the inside of the mixing box to drive material stirring;Outer circulation mixing mechanism, the outer circulation mixing mechanism is set in the outside of the mixing box, for the material conveying to the top to form circulation flow at the bottom of the mixing box, the outer circulation mixing mechanism also includes ultrasonic cavitation mixing assembly, the utility model utilizes outer circulation mixing mechanism and circulates the material conveying to the inside of mixing box above at the bottom of mixing box, by ultrasonic cavitation mixing assembly, nanometer particle is refined and inhibits reunion again, four form complementary dispersion system, synergistic dispersion, so that nanofiller is dispersed to solution sufficiently, and high polymer composite material blending is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of polymer materials technology, and in particular to a polymer composite material blending device for dispersing nanofillers. Background Technology

[0002] Polymer composite materials are multiphase materials prepared by blending and compounding processes using polymers (such as resins and rubbers) as the matrix and adding components such as nanofillers and fiber reinforcements. Their performance depends not only on the characteristics of each component, but also on the uniformity of the dispersion of nanofillers in the matrix and the interfacial bonding strength. By introducing nanofillers, the strength, stiffness, electrical conductivity, thermal conductivity, and corrosion resistance of composite materials can be significantly improved.

[0003] Nanofillers are prone to agglomeration due to their high surface energy. Traditional stirring methods have relatively limited shear force, making it difficult to effectively break up micron-sized agglomerates. This results in uneven mixing with the matrix, especially in high-viscosity systems (such as thermosetting resins), where the agglomeration problem is more pronounced, thus affecting the blending of polymer composites.

[0004] To address these issues, those skilled in the art have proposed a polymer composite material blending device for dispersing nanofillers. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problem that the above-mentioned or existing technologies have difficulty in effectively breaking up micron-sized agglomerates, resulting in uneven mixing with the matrix in some areas, this utility model is proposed.

[0007] Therefore, the purpose of this invention is to provide a polymer composite material blending device for dispersing nanofillers.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a polymer composite material blending device for dispersing nanofillers, comprising a mixing box;

[0009] An agitation mechanism is disposed at the top of the mixing tank. The agitation mechanism includes a composite agitation assembly that extends into the interior of the mixing tank to drive the material agitation.

[0010] An external circulation mixing mechanism is disposed outside the mixing chamber and is used to transport the material at the bottom of the mixing chamber to the top to form a circulating flow. The external circulation mixing mechanism also includes an ultrasonic cavitation mixing component for applying ultrasonic cavitation to the circulating material to break up the nanofiller agglomerates.

[0011] As a preferred embodiment of the polymer composite material blending device for dispersing nanofillers of this utility model, the top of the mixing box is provided with a feed pipe and the bottom of the mixing box is provided with a discharge pipe.

[0012] As a preferred embodiment of the polymer composite material blending device for dispersing nanofillers of this utility model, the stirring mechanism further includes a protective cover and a motor. The motor is installed at the center of the top of the mixing tank, the protective cover is fastened to the outside of the motor, and dustproof and heat dissipation nets are provided on both sides of the protective cover. One end of the composite stirring assembly is connected to the output shaft of the motor.

[0013] As a preferred embodiment of the polymer composite material blending device for dispersing nanofillers of this utility model, the composite stirring assembly includes a first connecting shaft and a second connecting shaft. The first connecting shaft is connected to one end of the output shaft of the motor via a key, and the second connecting shaft is connected to the first connecting shaft via a key. Both the first connecting shaft and the second connecting shaft are vertically located at the center line inside the mixing tank.

[0014] As a preferred embodiment of the polymer composite material blending device for dispersing nanofillers of this utility model, wherein: coarse stirring paddles are alternately installed on the outer circumference of the connecting shaft, and multiple wide blades are equidistantly installed on the outer circumference of the coarse stirring paddles.

[0015] As a preferred embodiment of the polymer composite material blending device for dispersing nanofillers of this utility model, wherein: fine stirring paddles are alternately installed on the outer circumference of the connecting shaft two, and multiple fine blades are equidistantly installed on the outer circumference of the fine stirring paddles, and multiple serrations are provided on the surface of the fine blades.

[0016] As a preferred embodiment of the polymer composite material blending device for dispersing nanofillers of this utility model, the external circulation mixing mechanism further includes a pump body, a bend, a guide pipe, and an annular pipe. The guide pipe is inserted into one side of the bottom outer wall of the mixing tank. The pump body is installed at the bottom of the mixing tank near the guide pipe and is connected to the guide pipe. The annular pipe is located on the inner circumference of the mixing tank near the top. The bend is inserted into the outer wall of the annular pipe, with one end of the bend located outside the mixing tank. The other end of the pump body is provided with a connecting pipe. A conveying pipe is vertically installed between the connecting pipe and the bend. The ultrasonic cavitation mixing component is installed on both sides of the conveying pipe.

[0017] As a preferred embodiment of the polymer composite material blending device for dispersing nanofillers of this utility model, the ultrasonic cavitation mixing component includes a fixed box, and mounting ports are opened on both outer walls of the conveying pipe. The fixed box is disposed on the inner wall of the mounting ports, and a mounting base is fixed inside the fixed box. Multiple ultrasonic generators are mounted on the surface of the mounting base. An amplitude transformer is provided at one end of the ultrasonic generator, and an ultrasonic transducer is installed at one end of the amplitude transformer. The ultrasonic transducer is in the shape of an arc-shaped thin sheet, and sealing gaskets are provided around the ultrasonic transducer.

[0018] The beneficial effects of this invention's polymer composite material blending device for dispersing nanofillers are as follows: The device achieves macroscopic mixing through a coarse stirring impeller, resulting in uniform mixing of the polymer composite material. A fine stirring impeller, along with fine blades and serrations, provides high shear force during rotation, achieving high-shear crushing. An external circulation mixing mechanism circulates and transports the material from the bottom of the mixing chamber to the upper interior of the mixing chamber. An ultrasonic cavitation mixing component refines the nanoparticles and inhibits re-agglomeration. These four components form a functionally complementary dispersion system, synergistically dispersing the nanofillers into the solution, resulting in a more uniform blending of the polymer composite material. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of a polymer composite material blending device for dispersing nanofillers.

[0021] Figure 2 for Figure 1 Another structural diagram from another angle.

[0022] Figure 3 This is a schematic diagram of the internal structure of a polymer composite material blending device for dispersing nanofillers.

[0023] Figure 4 This is a schematic diagram of the unfolded structure of the external circulation mixing mechanism of the polymer composite material blending device for dispersing nanofillers.

[0024] Figure 5 This is a schematic diagram of the stirring mechanism of a polymer composite material blending device for dispersing nanofillers.

[0025] In the diagram: 100, Mixing box; 101, Feed pipe; 102, Discharge pipe; 200, Stirring mechanism; 201, Protective cover; 202, Motor; 203, Composite stirring assembly; 2031, Connecting shaft one; 2032, Coarse stirring paddle; 2033, Wide blade; 2034, Connecting shaft two; 2035, Fine stirring paddle; 2036, Fine blade; 2037, Serrated edge; 300, External circulation mixing mechanism; 301, Conveying pipe; 302, Ultrasonic cavitation mixing assembly; 3021, Fixing box; 3022, Mounting base; 3023, Ultrasonic generator; 3024, Amplitude bar; 3025, Ultrasonic transducer; 303, Connecting pipe; 304, Pump body; 305, Bend; 306, Guide pipe; 307, Annular pipe; 308, Inclined spray pipe. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1

[0030] Reference Figures 1 to 3This is the first embodiment of the present invention. This embodiment provides a polymer composite material blending device for dispersing nanofillers, which can achieve the effect of refining nanoparticles and inhibiting re-agglomeration, resulting in a more uniform blending effect. It includes a mixing box 100.

[0031] A stirring mechanism 200 is disposed on the top of the mixing tank 100. The stirring mechanism 200 includes a compound stirring assembly 203, which extends into the mixing tank 100 to drive the material to stir.

[0032] An external circulation mixing mechanism 300 is disposed outside the mixing tank 100 and is used to transport the material at the bottom of the mixing tank 100 to the top to form a circulating flow. The external circulation mixing mechanism 300 also includes an ultrasonic cavitation mixing component 302, which is used to apply ultrasonic cavitation to the circulating material to break up the nanofiller agglomerates.

[0033] Specifically, a feed pipe 101 is provided at the top of the mixing box 100, and a discharge pipe 102 is provided at the bottom of the mixing box 100.

[0034] In use, the material enters from the feed pipe 101 at the top of the mixing box 100. The stirring mechanism 200 is started, and the composite stirring component 203 stirs the material up and down to fully agitate it. High shear force is applied to the material to break up the agglomerates. Then, the external circulation mixing mechanism 300 is started to transport the bottom material to the upper part of the mixing box 100 through the outside. The ultrasonic cavitation mixing component 302 applies ultrasonic cavitation to break up the nanofiller agglomerates and makes the material more evenly agitated, which facilitates the blending of polymer composite materials.

[0035] Example 2

[0036] Reference Figures 1 to 3 and Figure 5 This is the second embodiment of the present invention. Unlike the previous embodiment, the stirring mechanism 200 also includes a protective cover 201 and a motor 202. The motor 202 is installed at the center of the top of the mixing box 100. The protective cover 201 is fastened to the outside of the motor 202. Dustproof and heat dissipation nets are provided on both sides of the protective cover 201. One end of the composite stirring assembly 203 is connected to the output shaft of the motor 202.

[0037] Specifically, the composite mixing assembly 203 includes a first connecting shaft 2031 and a second connecting shaft 2034. The first connecting shaft 2031 is connected to one end of the output shaft of the motor 202 via a key, and the second connecting shaft 2034 is connected to the first connecting shaft 2031 via a key. Both the first connecting shaft 2031 and the second connecting shaft 2034 are vertically located at the center line inside the mixing box 100.

[0038] Furthermore, coarse stirring paddles 2032 are alternately installed on the outer circumference of the connecting shaft 2031, and multiple wide blades 2033 are equidistantly installed on the outer circumference of the coarse stirring paddles 2032.

[0039] Among them, fine stirring paddles 2035 are alternately installed on the outer circumference of the connecting shaft 2034, and multiple fine blades 2036 are equally distributed on the outer circumference of the fine stirring paddles 2035, and multiple serrations 2037 are provided on the surface of the fine blades 2036.

[0040] When in use, start the motor 202 to drive the rotation of connecting shaft one 2031 and connecting shaft two 2034. The coarse stirring paddle 2032 and wide blade 2033 perform large-scale stirring, so that the material is initially mixed. Then, the material is stirred by the fine stirring paddle 2035. The high shear force of the rotation of the fine blade 2036 and the saw tooth 2037 is used to achieve high shear crushing, break up the agglomerates, and make the blend more uniform.

[0041] Example 3

[0042] Reference Figures 1 to 4 This is the third embodiment of the present invention. Unlike the previous embodiment, the external circulation mixing mechanism 300 further includes a pump body 304, a bend 305, a guide pipe 306, and an annular pipe 307. The guide pipe 306 is inserted into one side of the bottom outer wall of the mixing box 100. The pump body 304 is installed at the bottom of the mixing box 100 near the guide pipe 306 and is connected to the guide pipe 306. The annular pipe 307 is located on the inner circumference of the mixing box 100 near the top. The bend 305 is inserted into the outer wall of the annular pipe 307. One end of the bend 305 is located outside the mixing box 100. The other end of the pump body 304 is provided with a connecting pipe 303. A conveying pipe 301 is vertically installed between the connecting pipe 303 and the bend 305. The ultrasonic cavitation mixing component 302 is installed on both sides of the conveying pipe 301.

[0043] Specifically, the ultrasonic cavitation mixing component 302 includes a fixed box 3021. Mounting ports are opened on both outer walls of the delivery pipe 301. The fixed box 3021 is located on the inner wall of the mounting ports. A mounting base 3022 is fixed inside the fixed box 3021. Multiple ultrasonic generators 3023 are mounted on the surface of the mounting base 3022. An amplitude transformer 3024 is provided at one end of each ultrasonic generator 3023. An ultrasonic transducer 3025 is mounted at one end of the amplitude transformer 3024. The ultrasonic transducer 3025 is in the shape of an arc-shaped thin sheet, and sealing gaskets are provided around its perimeter.

[0044] During use, after stirring to a certain extent, the pump body 304 is started, and the material at the bottom of the mixing box 100 is sent into the conveying pipe 301 through the guide pipe 306. The ultrasonic generator 3023 is started, and the ultrasonic transducer 3025 emits ultrasonic cavitation effect to refine the nanoparticles and inhibit re-agglomeration. Then, it is sent into the annular pipe 307 through the bent pipe 305, and then sprayed into the mixing box 100 through the inclined spray pipe 308, so that the material at the bottom is turned up to the top after external circulation. The above operation is repeated to make the nanofiller fully refined and the polymer composite material more uniformly blended. Then, it is discharged through the discharge pipe 102.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A polymer composite material blending device for dispersing nanofillers, characterized in that: include, A mixing chamber (100) is provided with a feed pipe (101) at the top and a discharge pipe (102) at the bottom. A stirring mechanism (200) is disposed on the top of the mixing tank (100). The stirring mechanism (200) includes a composite stirring assembly (203), which extends into the mixing tank (100) to drive the material stirring. The stirring mechanism (200) also includes a protective cover (201) and a motor (202). The motor (202) is installed at the center of the top of the mixing tank (100). The protective cover (201) is fastened to the outside of the motor (202). Dustproof and heat dissipation nets are provided on both sides of the protective cover (201). One end of the composite stirring assembly (203) is connected to the output shaft of the motor (202). The composite stirring assembly (203) includes a first connecting shaft (2031) and a second connecting shaft (2034). The first connecting shaft (2031) is connected to one end of the output shaft of the motor (202) by a key. The second connecting shaft (2034) is connected to the first connecting shaft (2031) by a key. Both the first connecting shaft (2031) and the second connecting shaft (2034) are vertically located at the center line inside the mixing box (100). Coarse stirring paddles (2032) are alternately installed on the outer circumference of the first connecting shaft (2031). Multiple wide blades (2033) are equidistantly installed on the outer circumference of the coarse stirring paddles (2032). An external circulation mixing mechanism (300) is disposed outside the mixing tank (100) and is used to transport the material at the bottom of the mixing tank (100) to the top to form a circulating flow. The external circulation mixing mechanism (300) also includes an ultrasonic cavitation mixing component (302) for applying ultrasonic cavitation to the circulating material to break up the nanofiller agglomerates.

2. The polymer composite material blending device for dispersing nanofillers as described in claim 1, characterized in that: Fine stirring paddles (2035) are alternately installed on the outer circumference of the connecting shaft 2 (2034). Multiple fine blades (2036) are equally distributed on the outer circumference of the fine stirring paddles (2035). Multiple serrations (2037) are provided on the surface of the fine blades (2036).

3. The polymer composite material blending device for dispersing nanofillers as described in claim 2, characterized in that: The external circulation mixing mechanism (300) further includes a pump body (304), a bend (305), a guide pipe (306), and an annular pipe (307). The guide pipe (306) is inserted into one side of the bottom outer wall of the mixing tank (100). The pump body (304) is installed at the bottom of the mixing tank (100) near the guide pipe (306) and is connected to the guide pipe (306). The annular pipe (307) is disposed in the mixing tank (305). 100) The bend (305) is inserted into the outer wall of the annular tube (307) near the top of the inner wall of the circumference. One end of the bend (305) is located outside the mixing box (100). The other end of the pump body (304) is provided with a connecting pipe (303). A conveying pipe (301) is vertically installed between the connecting pipe (303) and the bend (305). The ultrasonic cavitation mixing component (302) is installed on both sides of the conveying pipe (301).

4. The polymer composite material blending device for dispersing nanofillers as described in claim 3, characterized in that: The ultrasonic cavitation mixing assembly (302) includes a fixed box (3021). The outer walls of both sides of the delivery pipe (301) are provided with mounting ports. The fixed box (3021) is disposed on the inner wall of the mounting ports. A mounting base (3022) is fixed inside the fixed box (3021). Multiple ultrasonic generators (3023) are mounted on the surface of the mounting base (3022). An amplitude transformer (3024) is provided at one end of the ultrasonic generator (3023). An ultrasonic transducer (3025) is mounted at one end of the amplitude transformer (3024). The ultrasonic transducer (3025) is in the shape of an arc-shaped thin sheet. Sealing gaskets are provided around the ultrasonic transducer (3025).

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