A microcapsule powder modification device
By combining a microcapsule powder modification device with low-temperature plasma technology, the problem of low surface modification efficiency of microcapsules has been solved, achieving efficient and environmentally friendly modification effects, and is suitable for modification processes under normal or high pressure conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAVO NEW MATERIALS CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-02
AI Technical Summary
Existing microcapsule surface modification technologies suffer from low efficiency, inconvenience, and environmental unfriendliness. In particular, dry modification technology has a significant impact on the material surface and is difficult to perform uniform modification under normal or high pressure.
A microcapsule powder modification device is used, which utilizes a vessel and a powder circulation fan, combined with low-temperature plasma technology, to form a uniform discharge through copper electrodes and a barrier medium, thereby achieving efficient modification of the surface of microcapsule powder. The modification process is controlled by the fluidized bed state and quantitative reaction gas in the vessel.
It achieves efficient and controllable modification of the surface of microcapsule powders. The modification process is simple and environmentally friendly, with sufficient modification effect, and is suitable for use under normal or high pressure conditions.
Smart Images
Figure CN224308370U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of microcapsule technology, specifically relating to a microcapsule powder modification device. Background Technology
[0002] In practical applications, microcapsules often face compatibility issues with various systems, such as textile finishing auxiliaries, fiber spinning solutions, daily chemical detergents, and electronic heat dissipation materials. Depending on the properties of these systems, we aim to enhance the surface activity of microcapsules while preserving their original characteristics, thereby achieving better application results. Microcapsule surface modification technologies include wet modification techniques, such as grafting surface groups into slurry systems; and dry modification techniques, which are performed directly on the microcapsule powder without involving a dispersion medium, making them more efficient, convenient, and environmentally friendly. Low-temperature plasma modification technology is a type of dry technique. The plasma gas it generates is almost at room temperature, making it easy to apply to the surface of materials with minimal impact on the original properties of the raw materials. Its application in the field of microcapsule technology is a relatively novel approach. Low-temperature plasma modification technology ionizes reactive gases through glow discharge, corona discharge, dielectric barrier discharge, radio frequency discharge, and microwave discharge. The resulting low-temperature plasma has high energy and impacts the surface of polymer materials, causing surface etching, cross-linking, and polymerization, thus modifying the materials. Among these methods, dielectric barrier discharge, by placing an insulator in the discharge space, forms a large number of fine fast-pulse discharge channels, making the discharge very uniform, diffuse, and stable. This facilitates full contact of reactant molecules during the reaction, resulting in more thorough modification. Furthermore, it does not require vacuuming and can maintain the reaction at atmospheric or high pressure, making the modification more efficient.
[0003] Therefore, this utility model provides a microcapsule powder modification device, which has the characteristics of simple structure, efficient and thorough modification and easy control. Utility Model Content
[0004] The purpose of this invention is to provide a microcapsule powder modification device that can controllably, fully and efficiently modify the surface of microcapsule powder.
[0005] The technical solution adopted in this utility model is as follows: A microcapsule powder modification device includes a vessel body and a powder circulating fan; the vessel body includes a top, a straight section, and a conical section; the vessel body is provided with a cavity, which is filled with a blocking medium; the top of the vessel body is provided with a feed inlet, which is funnel-shaped and equipped with a valve; the top of the vessel body is provided with an exhaust port, which is also equipped with a valve; the top of the vessel body is also provided with a circulating gas outlet, which is equipped with a valve and connected to the inlet of the powder circulating fan; a copper mesh electrode is provided on the outer surface of the straight section of the vessel body and grounded; a person is provided on the front of the straight section of the vessel body. The vessel body has several features: a conduit for wiring and a high-voltage cable extending into the vessel body and connecting to a vertically mounted copper electrode; a sheath surrounding the copper electrode, filled with a barrier medium; several circulating gas inlets at the conical section of the vessel body, each with a valve and connected to the outlet of a powder circulating fan; a tailpipe at the bottom of the conical section, containing a reaction gas inlet, a main circulating gas inlet, and a discharge port, each with a valve; and the main circulating gas inlet connected to the outlet of the powder circulating fan.
[0006] The circulating fan is a specially insulated and sealed fan for powder conveying.
[0007] Furthermore, the vessel body is made of quartz or ceramic.
[0008] Furthermore, the blocking medium is quartz wool.
[0009] The beneficial effects of this invention are: reactive gas can be introduced into the reactor in a timed and quantitative manner, and the fluidized bed state of the microcapsule powder in the reactor can be maintained by means of a circulating insulated and sealed fan, so that the powder and plasma are always in uniform contact, achieving a more controllable, more efficient and complete modification effect. Attached Figure Description
[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0011] Fig. 1 This is a schematic diagram of the external appearance of the device provided by this utility model;
[0012] Fig. 2 This is a schematic diagram of the internal structure of the device provided by this utility model;
[0013] Fig. 3 Top view of the vessel body provided by this utility model;
[0014] Labels in the diagram: 1. Reactor body; 2. Powder circulating fan; 3. Top of reactor body; 4. Straight section of reactor body; 5. Conical section of reactor body; 6. Chamber; 7. Blocking medium; 8. Feed inlet; 9. Exhaust outlet; 10. Circulating gas outlet; 11. Powder circulating fan inlet; 12. Copper mesh electrode; 13. Manhole; 14. Conduit; 15. Copper electrode; 16. Sheath; 17. Circulating gas branch inlet; 18. Powder circulating fan branch outlet; 19. Tailpipe; 20. Reaction gas inlet; 21. Main circulating gas inlet; 22. Discharge port; 23. Powder circulating fan outlet. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described and explained below with reference to the accompanying drawings:
[0016] like Figs. 1-3 As shown, the technical solution of this utility model is as follows: a microcapsule powder modification device, including a vessel body 1 and a powder circulating fan 2; the vessel body 1 includes a top 3, a straight section 4, and a conical section 5; the vessel body is provided with a cavity 6, which is filled with a blocking medium 7; the top 3 of the vessel body is provided with a feed inlet 8, which is funnel-shaped and equipped with a valve; the top 3 of the vessel body is provided with an exhaust port 9, which is equipped with a valve; the top 3 of the vessel body is also provided with a circulating gas outlet 10, which is equipped with a valve and connected to the powder circulating fan inlet 11; a copper mesh electrode 12 is provided on the outer surface of the straight section 4 of the vessel body and grounded; a manhole 13 is provided on the front of the straight section 4 of the vessel body; the straight section of the vessel body... A conduit 14 is installed at one end of the side, and the conduit 14 and the high-voltage cable inside it extend into the inside of the reactor body and are connected to the vertically installed copper electrode 15. A sleeve 16 is installed around the copper electrode 15, and the sleeve 16 is filled with a blocking medium 7. The conical section 5 of the reactor body is provided with several circulating gas inlets 17. Each circulating gas inlet 17 is equipped with a valve and is connected to the outlet 18 of the powder circulating fan. A tailpipe 19 is provided at the bottom of the conical section 5 of the reactor body. The tailpipe 19 is provided with a reaction gas inlet 20, a main circulating gas inlet 21, and a discharge port 22. Each of the reaction gas inlet 20, the main circulating gas inlet 21, and the discharge port 22 is equipped with a valve. The main circulating gas inlet 21 is connected to the outlet 23 of the powder circulating fan.
[0017] The circulating fan is a specially insulated and sealed fan for powder conveying.
[0018] Furthermore, the vessel body is made of quartz.
[0019] Furthermore, the blocking medium is quartz wool.
[0020] The working principle of this invention is as follows: reactive gas is quantitatively introduced into the reactor from the reactive gas inlet at the bottom of the reactor body, and microcapsule powder is added into the reactor body from the feed inlet at the top of the reactor body. The valves at the reactive gas inlet, feed outlet, exhaust port, and feed inlet are closed, while all other valves are opened. The circulating fan is turned on, and the circulating gas flows through the circulating gas outlet at the top of the reactor body, passes through the fan outlet, and is distributed into several circulating gas inlets in the cone section of the reactor body. It then enters the reactor body and is fully mixed with the powder to form a tumbling fluidized bed. A high-voltage power supply is applied to the copper electrode, and through the quartz wool barrier, a barrier discharge is formed between the copper mesh electrode to generate low-temperature plasma that acts on the surface of the microcapsules, achieving the desired modification effect on the surface of the microcapsules.
[0021] Furthermore, this invention allows for the quantitative replenishment of reactive gas into the reactor via the reaction gas inlet midway through the reaction process, and also allows for control of the cyclic reaction time until the microcapsule powder meets the requirements of practical applications.
[0022] It should be noted that the terms "surrounding," "upper," "lower," "top," "bottom," and "side," etc., indicating directions or positional relationships, are only based on the accompanying drawings of this utility model and are for ease of description, not as limitations on specific orientations, structures, or operations, and therefore should not be construed as limitations on this utility model. Furthermore, the terms "set," "connected," and "linked" should be interpreted broadly. For example, "connected" can be any form of connection, including fixed connections, detachable connections, and indirect connections through other media. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the actual situation.
[0023] Although preferred embodiments of the present invention have been shown, those skilled in the art will recognize that various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.
Claims
1. A microcapsule powder modification device, characterized in that, The apparatus includes a vessel body (1) and a powder circulating fan (2); the vessel body (1) includes a top (3), a straight section (4), and a conical section (5); the vessel body is provided with a cavity (6), which is filled with a blocking medium (7); the top (3) of the vessel body is provided with a feed inlet (8), which is funnel-shaped and equipped with a valve; the top (3) of the vessel body is provided with an exhaust port (9), which is equipped with a valve; the top (3) of the vessel body is also provided with a circulating gas outlet (10), which is equipped with a valve and connected to the powder circulating fan inlet (11); a copper mesh electrode (12) is provided on the outer surface of the straight section (4) of the vessel body and grounded; a manhole (13) is provided on the front of the straight section (4) of the vessel body; and a conduit (14) is provided on one side of the straight section (4) of the vessel body. A conduit (14) and its internal high-voltage cable extend into the reactor body and connect to a vertically installed copper electrode (15); a sheath (16) is provided around the copper electrode (15), and the sheath (16) is filled with a blocking medium (7); the reactor body cone section (5) is provided with several circulating gas inlets (17), each circulating gas inlet (17) is equipped with a valve and connected to the powder circulating fan outlet (18); a tailpipe (19) is provided at the bottom of the reactor body cone section (5), the tailpipe (19) is provided with a reaction gas inlet (20), a circulating gas main inlet (21) and a discharge port (22), each of the reaction gas inlet (20), the circulating gas main inlet (21) and the discharge port (22) is equipped with a valve; the circulating gas main inlet (21) is connected to the powder circulating fan outlet (23); The circulating fan is a special insulated and sealed fan for powder conveying; the vessel body is made of quartz or ceramic; and the blocking medium is quartz wool.