Device for preparing essence microcapsules based on interfacial polymerization method

Abstract

The utility model relates to a device for preparing essence microcapsules based on an interfacial polymerization method, and belongs to the technical field of microcapsules. The utility model relates to a device for preparing essence microcapsules based on an interfacial polymerization method. The device comprises a first material tank, a second material tank and a third material tank, a reaction tank; comprising a heating system and a homogenizing system arranged in the heating system, the input end of the reaction tank is respectively connected with the output ends of the first material body tank and the second material body tank; and the second material tank is used for storing and supplying a second material. According to the device for preparing the essence microcapsules based on the interfacial polymerization method, integrated preparation of the essence microcapsules is achieved, the production time is effectively saved, raw material loss caused by transfer among different devices is reduced, the microcapsule preparation efficiency is improved, meanwhile, reaction conditions are accurately controlled, the particle size of the essence microcapsules is flexibly controlled, and the essence embedding rate is improved.

Description

Technical Field

[0001] This invention belongs to the field of microcapsule technology, and particularly relates to an apparatus for preparing flavor microcapsules based on interfacial polymerization. Background Technology

[0002] Microencapsulation technology is a micro-packaging technology that uses various natural or synthetic polymer films (wall materials) to encapsulate a target substance (core material) into tiny particles. Fragrances contain many volatile and chemically unstable substances. Microencapsulation technology can effectively prevent the rapid evaporation of fragrance components and prolong the scent's lasting effect, thus finding wide application in health products, textiles, food, and other fields.

[0003] One of the most common methods used to prepare flavor microcapsules is interfacial polymerization. The main principle of this method is to dissolve two monomers with different polyfunctional groups into two immiscible solvents. When the two different solvents containing the monomers come into contact with each other, the two monomers will react chemically at the immiscible interface to form a polymer film that coats the core material, thereby forming flavor microcapsules.

[0004] The steps for preparing flavor microcapsules using interfacial polymerization include: preparation of the oil phase, preparation of the aqueous phase, preparation of the emulsion, and polymerization reaction. The main equipment involved includes: a stirrer, homogenizer, and water bath temperature controller. Using the above equipment and conventional steps to prepare flavor microcapsules presents problems such as time-consuming and labor-intensive transfer of reactants between different devices, significant losses, and inconsistent final product quality due to fluctuations in process parameters or external contamination.

[0005] Therefore, there is an urgent need to design an integrated preparation device to improve the preparation efficiency of flavor microcapsules. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is to overcome the problems in the preparation of flavor microcapsules by interfacial polymerization, which are time-consuming and laborious to transfer the reaction material between different devices and have a large amount of loss, as well as the inability to accurately control the reaction conditions and the low application flexibility.

[0007] To solve the above-mentioned technical problems, this utility model provides an apparatus for preparing flavor microcapsules based on interfacial polymerization.

[0008] The purpose of this invention is to provide an apparatus for preparing flavor microcapsules based on interfacial polymerization, comprising:

[0009] First material tank: used for the storage and supply of the first material;

[0010] A reaction vessel; including a heating system and a homogenization system disposed within the heating system; the input end of the reaction vessel is connected to the output ends of a first material tank and a second material tank, respectively;

[0011] Second material tank: used for the storage and supply of the second material.

[0012] In one embodiment of the present invention, the first material tank includes a first heating device and a first stirring system disposed within the first heating device; the top of the first stirring system is provided with a first feed inlet.

[0013] In one embodiment of this utility model, the first material tank and the reaction tank are connected by a first conveying pipe.

[0014] In one embodiment of this utility model, the first conveying pipe is provided with a first metering pump and a second metering pump; the first metering pump is close to the output end of the first material tank; the second metering pump is close to the input end of the reaction tank.

[0015] In one embodiment of the present invention, the second material tank includes a second heating device and a second stirring system disposed within the second heating device; the top of the second stirring system is provided with a second feed inlet.

[0016] In one embodiment of this utility model, the second material tank and the reaction tank are connected by a second conveying pipe.

[0017] In one embodiment of this utility model, a third metering pump and a fourth metering pump are provided on the second conveying pipe; the third metering pump is close to the output end of the second material tank; and the fourth metering pump is close to the input end of the reaction tank.

[0018] In one embodiment of this utility model, by storing the first material and the second material (aqueous phase material and oil phase material) in separate material tanks, the mutual interference between the two materials before mixing can be avoided, ensuring the stability and uniformity of the materials before entering the reaction tank.

[0019] In one embodiment of this utility model, by equipping the material tank with a heating device and a stirring system, the material can be pretreated to ensure that the material reaches the ideal temperature and mixing state before entering the reaction tank, thereby improving reaction efficiency and product quality.

[0020] In one embodiment of this invention, a metering pump on the conveying pipe can precisely control the conveying volume and speed of the material, ensuring that the first and second materials (aqueous phase and oil phase) are mixed in a predetermined ratio, thereby achieving precise control over the particle size and quality of the flavor microcapsules. Furthermore, the automated conveying and metering system reduces the complexity and errors of manual operation, improving production efficiency and equipment reliability.

[0021] In one embodiment of the present invention, the reaction vessel further includes a third inlet and a fourth inlet at the top and an outlet at the bottom.

[0022] In one embodiment of this utility model, the homogenization system is a high-shear homogenizer; rapid emulsification and uniform mixing of materials are achieved through rotation and shear force.

[0023] In one embodiment of this utility model, the reaction vessel integrates heating, homogenization and polymerization reaction functions, realizing continuous production of flavor microcapsules and reducing time waste and material loss caused by equipment switching.

[0024] In one embodiment of this invention, a homogenization system can perform high-speed shearing and emulsification of the material to form a uniform and stable emulsion, providing ideal conditions for subsequent polymerization reactions, thereby improving the encapsulation rate and particle size uniformity of the flavor microcapsules.

[0025] In one embodiment of this invention, a heating system can precisely control the temperature of the materials in the reaction vessel, ensuring that the polymerization reaction takes place at the optimal temperature, thereby improving reaction efficiency and product quality.

[0026] In one embodiment of this invention, catalysts, stabilizers, and other auxiliary reagents are added through the third and fourth feed inlets at the top, enhancing the flexibility and applicability of the device.

[0027] In one embodiment of this invention, the prepared flavor microcapsules are collected through the discharge port at the bottom, which simplifies the operation process and improves production efficiency.

[0028] In one embodiment of this utility model, the first stirring system and the second stirring system are paddle mixers.

[0029] In one embodiment of this utility model, the heating system, the first heating device, and the second heating device are a circulating water bath system; the tank adopts a double-layer structure, and the interlayer can be filled with water medium to achieve precise temperature control of the material.

[0030] In one embodiment of this utility model, the first metering pump, the second metering pump, the third metering pump, and the fourth metering pump are gear metering pumps.

[0031] The technical solution of this utility model has the following advantages compared with the prior art:

[0032] (1) The device for preparing flavor microcapsules based on interfacial polymerization described in this utility model provides all the functions required in the process of preparing flavor microcapsules by interfacial polymerization, realizes the integrated preparation of flavor microcapsules, effectively saves production time, reduces raw material loss caused by transfer between different equipment, improves microcapsule preparation efficiency, and at the same time accurately controls reaction conditions, flexibly controls the particle size of flavor microcapsules, and improves flavor encapsulation rate.

[0033] (2) The device for preparing flavor microcapsules based on interfacial polymerization described in this utility model achieves precise control of reaction conditions such as flow rate, temperature, and stirring speed through automated control, reduces the impact of process parameter fluctuations on product quality, realizes efficient mixing and reaction of materials, improves the encapsulation rate of flavor, and can control the particle size of microcapsules according to the needs of different application scenarios. Attached Figure Description

[0034] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0035] Figure 1 This is a schematic diagram of the apparatus for preparing flavor microcapsules based on interfacial polymerization according to this utility model;

[0036] Explanation of reference numerals in the attached drawings: 1-First heating device, 2-First feed inlet, 3-First stirring system, 4-First metering pump, 5-First conveying pipe, 6-Second metering pump, 7-Second heating device, 8-Second feed inlet, 9-Second stirring system, 10-Third metering pump, 11-Second conveying pipe, 12-Fourth metering pump, 13-Heating system, 14-Third feed inlet, 15-Fourth feed inlet, 16-Homogenization system, 17-Discharge outlet. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. It should be understood that the specific embodiments are only used to explain the present invention, but the embodiments are not intended to limit the present invention.

[0038] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.

[0039] Example 1

[0040] Reference Figure 1 As shown, the apparatus for preparing flavor microcapsules based on interfacial polymerization in this embodiment includes:

[0041] First material tank: used for the storage and supply of the first material; the first material tank includes a first heating device 1 and a first stirring system 3 installed in the first heating device 1; the top of the first stirring system 3 is provided with a first feed inlet 2; the first material tank and the reaction tank are connected by a first conveying pipe 5; a first metering pump 4 and a second metering pump 6 are provided on the first conveying pipe 5; the first metering pump 4 is close to the output end of the first material tank; the second metering pump 6 is close to the input end of the reaction tank; the first stirring system 3 is a paddle mixer; the first heating device 1 is a circulating water bath system; the first metering pump 4 and the second metering pump 6 are gear metering pumps;

[0042] The reaction vessel includes a heating system 13 and a homogenization system 16 disposed within the heating system 13. The input end of the reaction vessel is connected to the output ends of the first material tank and the second material tank, respectively. The reaction vessel also includes a third feed port 14 and a fourth feed port 15 disposed at the top and a discharge port 17 disposed at the bottom. The homogenization system 16 is a high-shear homogenizer. The heating system 13 is a circulating water bath system.

[0043] Second material tank: used for the storage and supply of the second material; the second material tank includes a second heating device 7 and a second stirring system 9 installed in the second heating device 7; the top of the second stirring system 9 is provided with a second feed inlet 8; the second material tank and the reaction tank are connected by a second conveying pipe 11; a third metering pump 10 and a fourth metering pump 12 are provided on the second conveying pipe 11; the third metering pump 10 is close to the output end of the second material tank; the fourth metering pump 12 is close to the input end of the reaction tank; the second stirring system 9 is a paddle mixer; the second heating device 7 is a circulating water bath system; the third metering pump 10 and the fourth metering pump 12 are gear metering pumps.

[0044] The specific operating procedure is as follows:

[0045] S1. Add the oil phase material and the water phase material to the first material tank and the second material tank respectively through the first feed port 2 and the second feed port 8. Turn on the first stirring system 3 and the second stirring system 9 (if heating is required, turn on the first heating device 1 and the second heating device 7 separately). After the oil phase material or the water phase material is fully mixed, turn off the first stirring system 3 and the second stirring system 9 (and the first heating device 1 and the second heating device 7).

[0046] S2. Then, the uniformly mixed oil phase material and water phase material are quantitatively transported into the reaction tank through the first conveying pipe 5 and the second conveying pipe 11 (the conveying volume and conveying speed are controlled by the first metering pump 4, the second metering pump 6, the third metering pump 10 and the fourth metering pump 12 respectively).

[0047] S3. Start the homogenization system 16 to perform high-speed shearing on the oil phase material and the water phase material to obtain a uniform emulsion, and then turn off the homogenization system 16.

[0048] S4. Turn on the heating system 13. The active multifunctional monomers in the emulsion undergo a polymerization reaction (if the reaction requires auxiliary reagents such as catalysts, they can be added through the third feed port 14 and the fourth feed port 15). The resulting high molecular weight substances encapsulate the fragrance, thereby forming fragrance microcapsules. After the reaction is completed, turn off the heating system 13.

[0049] S5. Finally, the prepared flavor microcapsules are collected through the discharge port 17.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An apparatus for preparing flavor microcapsules based on interfacial polymerization, characterized in that, include: First material tank: used for the storage and supply of the first material; A reaction vessel; including a heating system and a homogenization system disposed within the heating system; the input end of the reaction vessel is connected to the output ends of a first material tank and a second material tank, respectively; Second material tank: used for the storage and supply of the second material.

2. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 1, characterized in that, The first material tank includes a first heating device and a first stirring system disposed within the first heating device; the top of the first stirring system is provided with a first feed inlet.

3. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 2, characterized in that, The first mixing system is a paddle mixer.

4. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 1, characterized in that, The first material tank and the reaction tank are connected by a first conveying pipe.

5. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 4, characterized in that, The first conveying pipe is equipped with a first metering pump and a second metering pump; the first metering pump is located near the output end of the first material tank; the second metering pump is located near the input end of the reaction tank.

6. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 1, characterized in that, The second material tank includes a second heating device and a second stirring system disposed within the second heating device; the top of the second stirring system is provided with a second feed inlet.

7. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 6, characterized in that, The second mixing system is a paddle mixer.

8. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 1, characterized in that, The second material tank and the reaction tank are connected by a second conveying pipe.

9. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 8, characterized in that, The second conveying pipe is equipped with a third metering pump and a fourth metering pump; the third metering pump is located near the output end of the second material tank; the fourth metering pump is located near the input end of the reaction tank.

10. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 1, characterized in that, The reaction vessel also includes a third and a fourth feed inlet at the top and a discharge outlet at the bottom.

11. The apparatus for preparing flavor microcapsules based on interfacial polymerization according to claim 1, characterized in that, The homogenization system is a high-shear homogenizer.

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