A reaction apparatus for preparing a multifunctional silicone-inorganic hybrid material

Abstract

The utility model relates to the technical field of chemical equipment discloses a reaction unit for preparing multifunctional organic silicon - inorganic hybrid material, including reaction unit base and heating shell, and is equipped with the discharge chute at reaction unit base bottom, and the support frame is installed to the discharge chute bottom, and the support frame top is installed with the conveying pipe, and the heating shell top is installed with the stirring subassembly, and the stirring subassembly includes spiral conveying board and multiple stirring board, and the spiral conveying board is worn to the conveying pipe inside, and the reaction unit base top is installed with the exhaust pipe, and the exhaust pipe other end is connected with the condensation box body, and the vacuum extraction machine is installed to condensation box body one side wall lower part, the utility model discloses compared with prior art's advantage lies in: realizes the strong radial, axial mixing and circulation of material in the reactor, can effectively scatter the reunion of solid inorganic nano particle, combines vacuum extraction and multilayer condensation structure, can remove the small molecule by - product generated in sol - gel reaction process from the reaction system in time, continuously.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically to a reaction device for preparing multifunctional organosilicon-inorganic hybrid materials. Background Technology

[0002] Organosilicon-inorganic hybrid materials combine the flexibility and ease of processing of organic polymers with the high strength and high thermal stability of inorganic materials, and have broad application prospects in coatings, adhesives, electronic packaging, biomedicine and other fields. Their preparation usually involves sol-gel methods, in-situ polymerization methods, etc., and the process often includes reaction steps such as hydrolysis and condensation.

[0003] Existing reaction equipment is mostly conventional jacketed reactor, which has the following shortcomings:

[0004] 1. During the feeding stage, especially when adding solid inorganic nanoparticles, agglomeration is likely to occur, making it difficult to disperse uniformly in the organosilicon matrix and affecting the final performance of the hybrid material.

[0005] 2. Small molecule byproducts generated during the sol-gel process, such as alcohols and water, can hinder the condensation reaction and affect the molecular weight and structure of the product if they are not removed in time.

[0006] To address the aforementioned technical problems, this application proposes a reaction apparatus for preparing multifunctional organosilicon-inorganic hybrid materials. Utility Model Content

[0007] I. Technical problems to be solved

[0008] The technical problem this invention aims to solve is that when solid inorganic nanoparticles are added, agglomeration easily occurs, affecting the final performance of the hybrid material. Small molecule byproducts generated during the sol-gel process can hinder the condensation reaction and affect the molecular weight and structure of the product.

[0009] II. Technical Solution

[0010] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a reaction device for preparing multifunctional organosilicon-inorganic hybrid materials, comprising a reaction device base and a heating shell, wherein the heating shell is sealed and installed on the upper side of the reaction device base;

[0011] The bottom of the reaction device base is provided with a discharge trough, a support frame is installed at the bottom of the discharge trough, a conveying pipe is installed at the top of the support frame, and a stirring assembly is installed at the top of the heating shell. The stirring assembly includes a spiral conveying plate and multiple sets of stirring plates, and the spiral conveying plate extends into the inside of the conveying pipe.

[0012] An exhaust pipe is installed on the top of the base of the reaction device, and the other end of the exhaust pipe is connected to a condenser. A vacuum extractor is installed on the lower part of one side wall of the condenser.

[0013] A feed pipe is installed at the top of the heating shell, and a discharge pipe is installed at the bottom of the reaction device base.

[0014] As an improvement, the stirring assembly also includes a motor and a rotating shaft. The motor is fixedly mounted on the top of the heating housing, and the shaft end passes through the inner side of the heating housing and is connected to the top of the rotating shaft. The spiral conveying plate is fixedly mounted on the outer side of the rotating shaft. Multiple sets of inverted L-shaped mounting brackets are installed on the outer side of the rotating shaft, and multiple sets of stirring plates are installed on the inner side of the vertical side wall of the L-shaped mounting brackets.

[0015] As an improvement, a scraper that contacts the inner wall of the heating housing is installed on the outer side of the vertical side wall of the L-shaped mounting bracket.

[0016] As an improvement, the condenser box is equipped with multiple layers of condenser mesh plates inside, and condensate is injected into the condenser mesh plates. Two sets of water guide pipes are installed on the outer wall of the condenser box, and the multiple layers of condenser mesh plates are connected to the water guide pipes.

[0017] As an improvement, a sealing valve is installed on the exhaust pipe, a support plate is installed on one side of the reaction device base, the bottom of the condensation chamber is positioned on the upper side of the support plate and is provided with a drain outlet, and a sealing cover is installed on the outside of the drain outlet.

[0018] As an improvement, a material control valve one and a material control valve two are respectively installed on the feed pipe and the discharge pipe.

[0019] III. Beneficial Effects

[0020] The advantages of this utility model compared with the prior art are as follows:

[0021] 1. The composite stirring system, consisting of a stirring plate and a spiral conveyor plate, achieves intense radial and axial mixing and circulation of materials within the reactor. This effectively breaks up agglomerates of solid inorganic nanoparticles, ensuring their uniform dispersion within the organosilicon matrix and significantly improving the uniformity and performance of the hybrid materials. The scraper further guarantees the cleanliness of the heat transfer surface and thorough mixing of the materials.

[0022] 2. By combining vacuum extraction with a multi-layer condensation structure, small molecule byproducts generated during the sol-gel reaction can be removed from the reaction system in a timely and continuous manner, breaking the reaction equilibrium limitation, promoting the condensation reaction, and facilitating the acquisition of hybrid materials with higher molecular weight and more controllable structure, thereby improving product quality and reaction efficiency. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the upper structure of a reaction apparatus for preparing multifunctional organosilicon-inorganic hybrid materials according to the present invention.

[0024] Figure 2 This is a schematic diagram of the lower structure of a reaction apparatus for preparing multifunctional organosilicon-inorganic hybrid materials according to the present invention.

[0025] Figure 3 This is a schematic diagram of the upper structure of the reaction device base of a reaction device for preparing multifunctional organosilicon-inorganic hybrid materials according to the present invention.

[0026] Figure 4 This is a schematic diagram of the internal structure of the heating shell of a reaction device for preparing multifunctional organosilicon-inorganic hybrid materials according to this utility model.

[0027] Figure 5 This is a schematic diagram of the internal structure of the condenser box of a reaction apparatus for preparing multifunctional organosilicon-inorganic hybrid materials according to this utility model.

[0028] As shown in the figure: 1. Reactor base; 2. Heating shell; 3. Support plate; 4. Discharge trough; 5. Support frame; 6. Conveying pipe; 7. Rotating shaft; 8. Spiral conveying plate; 9. L-shaped mounting frame; 10. Stirring plate; 11. Scraper; 12. Motor; 13. Feed pipe; 14. Control valve one; 15. Discharge pipe; 16. Control valve two; 17. Exhaust pipe; 18. Condensation chamber; 19. Sealing valve; 20. Vacuum extractor; 21. Condensation mesh plate; 22. Water guide pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 As shown, a reaction apparatus for preparing multifunctional organosilicon-inorganic hybrid materials includes a reaction apparatus base 1 and a heating shell 2. The heating shell 2 is sealed and installed on the upper side of the reaction apparatus base 1. A feed pipe 13 is installed on the top of the heating shell 2, and a discharge pipe 15 is installed on the bottom of the reaction apparatus base 1.

[0031] The bottom of the reaction device base 1 is provided with a discharge trough 4, the bottom of the discharge trough 4 is equipped with a support frame 5, the top of the support frame 5 is equipped with a conveying pipe 6, the top of the heating shell 2 is equipped with a stirring assembly, the stirring assembly includes a spiral conveying plate 8 and multiple sets of stirring plates 10, and the spiral conveying plate 8 extends into the conveying pipe 6.

[0032] As attached Figure 4 As shown, the stirring assembly also includes a motor 12 and a rotating shaft 7. The motor 12 is fixedly installed on the top of the heating housing 2, and the shaft end passes through the inner side of the heating housing 2 and is connected to the top of the rotating shaft 7. The spiral conveying plate 8 is fixedly installed on the outer side of the rotating shaft 7. Multiple sets of inverted L-shaped mounting brackets 9 are installed on the outer side of the rotating shaft 7. Multiple sets of stirring plates 10 are installed on the inner side of the vertical side wall of the L-shaped mounting bracket 9. Scrapers 11 that contact the inner wall of the heating housing 2 are installed on the outer side of the vertical side wall of the L-shaped mounting bracket 9.

[0033] As attached Figure 1 Appendix Figure 2 and attached Figure 5 As shown, an exhaust pipe 17 is installed on the top of the reaction device base 1, and the other end of the exhaust pipe 17 is connected to a condenser 18. A vacuum extractor 20 is installed on the lower part of one side wall of the condenser 18. A multi-layer condenser mesh plate 21 is installed inside the condenser 18. Condensate is injected into the condenser mesh plate 21. Two sets of water guide pipes 22 are installed on the outer wall of the condenser 18. The multi-layer condenser mesh plate 21 is connected to the water guide pipes 22.

[0034] A sealing valve 19 is installed on the exhaust pipe 17. A support plate 3 is installed on one side of the reaction device base 1. The bottom of the condenser 18 is positioned on the upper side of the support plate 3 and is provided with a drain outlet. A sealing cover is installed on the outside of the drain outlet. A material control valve 14 and a material control valve 2 16 are respectively installed on the feed pipe 13 and the discharge pipe 15.

[0035] The specific usage method is as follows:

[0036] Open the control valve 14 on the feed pipe 13 to add liquid raw materials such as organosilicon monomers, solvents, water, and catalysts into the heating shell 2 through the feed pipe 13. Start the motor 12 to drive the rotating shaft 7 to rotate, thereby causing the multiple sets of stirring plates 10 fixed on the rotating shaft to perform preliminary stirring and mixing of the materials.

[0037] During stirring operation, solid inorganic nanoparticles are gradually added through the feed pipe 13. After entering the reaction system, the particles are initially dispersed by the radial and axial stirring action of the stirring plate 10. Simultaneously, the material at the bottom of the reactor is forcibly drawn in from the conveying pipe 6 by the rotation of the spiral conveyor plate 8 and transported upwards along the rotating shaft 7, falling back to the main reaction area after reaching the top. This continuous and intense axial circulation greatly enhances the flow and mixing of materials throughout the reactor space, playing a crucial role in breaking up agglomerates of solid particles and achieving uniform dispersion in the organosilicon matrix. Simultaneously, the scraper 11 mounted on the L-shaped mounting bracket 9 rotates close to the inner wall of the heating shell 2, effectively scraping away material adhering to the inner wall, preventing localized overheating or scaling, and promoting the remixing of this material.

[0038] The reaction mixture is heated by the heating shell 2, initiating sol-gel reactions such as hydrolysis and condensation. Small molecule byproducts generated during the reaction escape with the vapor in the reaction system. The sealing valve 19 on the exhaust pipe 17 is opened, and the vacuum pump 20 is started. Under vacuum, the gaseous byproducts in the reactor are drawn into the condenser box 18. As these gases flow through the condenser box 18, which is equipped with multiple layers of condensing mesh plates 21, they are connected to an external circulation system through the water pipe 22. The condensate circulating inside the condensing mesh plates 21 condenses the gaseous byproducts into liquid, which is collected at the bottom of the condenser box 18 and periodically discharged through the drain port. Uncondensed non-condensable gases are vented by the vacuum pump 20. This process effectively and continuously removes byproducts from the reaction system, shifting the condensation reaction equilibrium towards the forward reaction direction, which is beneficial for increasing the molecular weight of the product and controlling the product structure.

[0039] After the reaction is complete, stop heating and stirring. Open the control valve 16 on the discharge pipe 15, and the reaction products will be collected in the discharge trough 4 under gravity and discharged through the discharge pipe 15.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] 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.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A reaction apparatus for preparing multifunctional organosilicon-inorganic hybrid materials, comprising a reaction apparatus base (1) and a heating shell (2), wherein the heating shell (2) is sealed and installed on the upper side of the reaction apparatus base (1), characterized in that: The bottom of the reaction device base (1) is provided with a discharge trough (4), a support frame (5) is installed at the bottom of the discharge trough (4), a conveying pipe (6) is installed at the top of the support frame (5), and a stirring assembly is installed at the top of the heating shell (2). The stirring assembly includes a spiral conveying plate (8) and multiple sets of stirring plates (10). The spiral conveying plate (8) passes through the inside of the conveying pipe (6). The top of the reaction device base (1) is equipped with an exhaust pipe (17), and the other end of the exhaust pipe (17) is connected to a condenser box (18). A vacuum extractor (20) is installed on the lower part of one side wall of the condenser box (18). The heating shell (2) is equipped with a feed pipe (13) at the top and the reaction device base (1) is equipped with a discharge pipe (15) at the bottom.

2. The reaction apparatus for preparing a multifunctional silicone-inorganic hybrid material according to claim 1, characterized by: The stirring assembly also includes a motor (12) and a rotating shaft (7). The motor (12) is fixedly installed on the top of the heating shell (2), and the shaft end passes through the inner side of the heating shell (2) and is connected to the top of the rotating shaft (7). The spiral conveying plate (8) is fixedly installed on the outer side of the rotating shaft (7). Multiple sets of inverted L-shaped mounting brackets (9) are installed on the outer side of the rotating shaft (7). Multiple sets of stirring plates (10) are installed on the inner side of the vertical side wall of the L-shaped mounting bracket (9).

3. The reaction apparatus for producing a multifunctional silicone-inorganic hybrid material according to claim 2, characterized by: The L-shaped mounting bracket (9) has a scraper (11) installed on the outer side of its vertical side wall, which contacts the inner wall of the heating shell (2).

4. The reaction apparatus for preparing a multifunctional silicone-inorganic hybrid material according to claim 1, characterized by: The condenser box (18) is equipped with a multi-layer condenser mesh plate (21), and condensate is injected into the condenser mesh plate (21). Two sets of water guide pipes (22) are installed on the outer wall of the condenser box (18), and the multi-layer condenser mesh plate (21) is connected to the water guide pipes (22).

5. The reaction apparatus for producing a multifunctional silicone-inorganic hybrid material according to claim 4, characterized by: A sealing valve (19) is installed on the exhaust pipe (17), a support plate (3) is installed on one side of the reaction device base (1), the bottom of the condenser box (18) is positioned on the upper side of the support plate (3) and is provided with a drain outlet, and a sealing cover is installed on the outside of the drain outlet.

6. The reaction apparatus for producing a multifunctional silicone-inorganic hybrid material according to claim 5, characterized by: The feed pipe (13) and the discharge pipe (15) are respectively equipped with a material control valve one (14) and a material control valve two (16).

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