Preparation method and preparation device for light-triggered microcapsule

Abstract

Disclosed in the present invention is a preparation device for a light-triggered microcapsule, comprising: a stirring mechanism which comprises a magnetic stirrer; a dissolution container arranged on the magnetic stirrer; a reagent part arranged on the magnetic stirrer; an extending part arranged on the reagent part; a power part arranged on the reagent part; a temperature measuring part arranged on the extending part; a protection part arranged on the temperature measuring part; a limiting part arranged on the extending part; and an abutment part arranged on the extending part. In the preparation device for the light-triggered microcapsule, by means of the arrangement of the protection part, a solution can be stirred without the need to add the solution into a stirrer again, so that operation is convenient; moreover, a reagent can be gradually added, thereby enhancing the mixing effect of the solution; and adding the reagent into the solution at different depths further improves the mixing effect of the solution.

Description

A method and equipment for preparing phototriggered microcapsules Technical Field

[0001] This invention relates to the technical field of phototriggered microcapsules, and more particularly to a method and equipment for preparing phototriggered microcapsules. Background Technology

[0002] In the field of electrical insulation, electrical tree damage is a common and serious problem that can lead to failures in ultra-high voltage transmission and transformation equipment and overvoltage operation of power systems. Therefore, effectively repairing and restoring the insulation performance of damaged areas is crucial to ensuring the reliability of power equipment and the stability of the system. To solve this problem, it is necessary to combine electrical tree damage repair in the field of electrical insulation with microencapsulation technology.

[0003] Currently, the commonly used microcapsule triggering methods are temperature triggering and pH triggering. The difference between these two preparation methods lies in the choice of shell material. Temperature-triggered microcapsules use temperature-sensitive materials as the shell material, such as poly(N-isopropylacrylamide) (PNIPAM) or polyethylene glycol (PEG), while pH-triggered microcapsules use acid-base-sensitive materials as the shell material, such as polyvinyl alcohol (PVA) or cellulose.

[0004] Both temperature-triggered and pH-triggered microcapsules have some drawbacks. Temperature-triggered microcapsules suffer from limited temperature range, varying temperature sensitivity, and slow temperature change rates. They typically only achieve phase transitions within a specific temperature range, and different materials may exhibit different temperature sensitivities. Furthermore, the relatively slow temperature change rate results in a longer trigger response time for the microcapsules. Similarly, pH-triggered microcapsules suffer from limited pH values, varying pH sensitivity, and slow pH change rates. They typically require specific acidic or alkaline environments to achieve shell swelling or rupture, and different materials may exhibit different acid-base sensitivities. Additionally, the relatively slow pH change rate results in a longer trigger response time for the microcapsules.

[0005] Summary of the Invention

[0006] In view of the problems existing in the preparation methods of the aforementioned phototriggered microcapsules, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a method for preparing photo-triggered microcapsules, which aims to achieve triggering of microcapsules without direct contact with them.

[0008] To address the aforementioned technical problems, this invention provides a method for preparing phototriggered microcapsules, comprising the following steps:

[0009] Prepare the photosensitive core components: Under laboratory conditions, dissolve photoinitiators 1173, 651 and TPO in a suitable solvent (such as dimethyl sulfoxide) to obtain a homogeneous solution. Use a magnetic stirrer during the dissolution process to promote the dissolution and homogeneous mixing of the components.

[0010] Prepare the shell-forming agent: Weigh the D-110N resin and place it in a suitable container. Gradually add ETAC (ethyltrichlorosilane) while using a stirrer or other suitable mixing device to control the viscosity and mixing uniformity.

[0011] Prepare the aqueous phase: Prepare the required volume of PVA224 (polyvinyl alcohol) solution and dilute it with appropriate deionized water to obtain the desired concentration (4, 5%). Stir or heat the solution to ensure that PVA224 is completely dissolved and a homogeneous aqueous phase is formed.

[0012] Mixing the oil and aqueous phases: Gradually mix the shell-forming reagent and the aqueous phase, stirring with a stirrer or other suitable mixing device;

[0013] Shear mixing: Place the O / W emulsion in a suitable container and shear mix it using a high-speed shear device (such as a high-shear mixer);

[0014] Add TEPA: Gradually add TEPA to the shear-mixed emulsion while stirring to promote the reaction;

[0015] Reaction and stirring: The reaction is carried out at a given temperature (e.g., 25°C) and a specific stirring speed (e.g., 800 rpm);

[0016] Centrifugation and washing: The reacted microcapsule emulsion was placed in a centrifuge and centrifuged at an appropriate speed and time to separate the microcapsules and residual liquid;

[0017] Drying: Transfer the washed microcapsule sample to a suitable container or filter to remove excess moisture.

[0018] The present invention provides an apparatus for preparing phototriggered microcapsules, comprising a stirring mechanism including a magnetic stirrer, a melting cup disposed on the magnetic stirrer, a reagent section disposed on the magnetic stirrer, an extension section disposed on the reagent section, a power section disposed on the reagent section, a temperature measuring section disposed on the extension section, a protection section disposed on the temperature measuring section, a limiting section disposed on the extension section, and a docking section disposed on the extension section;

[0019] The limiting mechanism includes a squeezing part disposed on the magnetic stirrer, a rotating part disposed on the squeezing part, and a snap-fit ​​part disposed on the rotating part.

[0020] In a preferred embodiment of the equipment for preparing phototriggered microcapsules according to the present invention, the reagent section includes a fixed support disposed on the magnetic stirrer, a reagent container disposed on the fixed support, and a container lid disposed on the reagent container.

[0021] In a preferred embodiment of the equipment for preparing phototriggered microcapsules according to the present invention, the extension includes a rotating plate disposed on the reagent barrel, an extension plate disposed on the rotating plate, and an adjustment groove disposed on the extension plate.

[0022] As a preferred embodiment of the equipment for preparing phototriggered microcapsules according to the present invention, the power unit includes an electric motor disposed on the fixed support, a gear disposed on the electric motor, and a gear ring disposed on the reagent container and adapted to the gear.

[0023] As a preferred embodiment of the equipment for preparing the phototriggered microcapsules of the present invention, the temperature measuring unit includes a temperature detector disposed in the regulating groove, a battery disposed on the extension plate and connected to the temperature detector, and a detection probe disposed on the temperature detector.

[0024] The protective part includes a protective sleeve disposed on the temperature detector, a liquid flow chamber disposed on the protective sleeve, a clip disposed on the protective sleeve, a liquid outlet disposed on the protective sleeve, and a liquid inlet disposed on the protective sleeve.

[0025] In a preferred embodiment of the apparatus for preparing the phototriggered microcapsules of the present invention, the limiting part includes a limiting groove disposed on the extension plate, a limiting slider disposed in the limiting groove, a limiting arc plate disposed on the limiting slider and adapted to the temperature detector, a limiting stop strip disposed on the limiting arc plate, a limiting side groove disposed on the extension plate, and a fixing bolt disposed in the limiting side groove and connected to the limiting slider.

[0026] As a preferred embodiment of the equipment for preparing phototriggered microcapsules according to the present invention, the docking part includes a docking groove disposed on the extension plate, a docking ring disposed on the docking groove, a sealing gasket disposed in the docking ring, a slot disposed on the docking ring and adapted to the card head, a docking hole disposed on the docking ring, and a flexible tube disposed between the docking ring and the reagent barrel.

[0027] In a preferred embodiment of the equipment for preparing phototriggered microcapsules according to the present invention, the extrusion section includes a mounting plate disposed on the magnetic stirrer, an extrusion strip disposed on the mounting plate, limiting teeth disposed on the extrusion strip, and an extrusion plate disposed on the extrusion strip.

[0028] As a preferred embodiment of the equipment for preparing phototriggered microcapsules according to the present invention, the rotating part includes a mounting ring disposed on the mounting plate, a rotating ring disposed on the mounting ring, an arc-shaped triangular plate disposed on the rotating ring, and a protrusion disposed on the arc-shaped triangular plate;

[0029] The locking part includes a locking rod disposed on the mounting ring, a locking spring disposed on the locking rod, a locking block disposed on the locking rod and adapted to the limiting teeth, and an annular handle disposed on the locking rod.

[0030] The beneficial effects of this invention are: combining electrical tree damage repair in the field of electrical insulation with photosensitive microcapsule technology. Compared with temperature-triggered and pH-triggered microcapsules, photo-triggered microcapsules have the advantage of non-contact triggering. The microcapsules can be triggered by light irradiation without direct contact with the microcapsules, thereby avoiding the side effects or pollution problems that may be caused by physical contact.

[0031] The protective unit allows for easy stirring of the solution without the need to refill it into the stirrer. It also allows for the gradual addition of reagents, enhancing the mixing effect of the solution. Furthermore, the addition of reagents at different depths further improves the mixing effect. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0033] Figure 1 is a schematic diagram of the overall structure of the equipment for preparing the phototriggered microcapsules of the present invention.

[0034] Figure 2 is a schematic diagram of the reagent container of the equipment for preparing the phototriggered microcapsules of the present invention.

[0035] Figure 3 is a schematic diagram of the rotating plate of the equipment for preparing the phototriggered microcapsules of the present invention.

[0036] Figure 4 is a schematic diagram of the docking ring structure of the equipment for preparing the phototriggered microcapsules of the present invention.

[0037] Figure 5 is a schematic diagram of the docking part of the equipment for preparing the phototriggered microcapsules of the present invention.

[0038] Figure 6 is a schematic diagram of the temperature detector in the equipment for preparing the phototriggered microcapsules of the present invention.

[0039] Figure 7 is a schematic diagram of the structure of the protective cover of the equipment for preparing the phototriggered microcapsules of the present invention.

[0040] Figure 8 is a schematic diagram of the extrusion section of the equipment for preparing the phototriggered microcapsules of the present invention.

[0041] Figure 9 is a schematic diagram of the structure of the snap-fit ​​part of the equipment for preparing the phototriggered microcapsules of the present invention.

[0042] Figure 10 is a schematic diagram of the rotating part of the equipment for preparing the phototriggered microcapsules of the present invention.

[0043] Figure 11 is a partially enlarged schematic diagram of point A in Figure 9 of the equipment for preparing the phototriggered microcapsules of the present invention. Detailed Implementation

[0044] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0046] Secondly, the term "one 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 is mutually exclusive with other embodiments.

[0047] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0048] Example 1

[0049] The first embodiment of the present invention provides a method for preparing phototriggered microcapsules, comprising the following steps:

[0050] S1, Prepare the photosensitive core ingredients:

[0051] a. Under laboratory conditions, the photoinitiator was dissolved using dimethyl sulfoxide to obtain a homogeneous solution.

[0052] b. Use a magnetic stirrer or ultrasonic treatment during the dissolution process to promote the dissolution and uniform mixing of the ingredients.

[0053] c. Control the dissolution temperature and time to ensure that the photoinitiator is completely dissolved and forms the photosensitive core component.

[0054] s2, Prepare the shell-forming reagent:

[0055] a. Weigh the resin and place it in a suitable container.

[0056] b. Gradually add ethyltrichlorosilane while using a stirrer or other suitable mixing device to control viscosity and mixing uniformity.

[0057] c. After adjusting the viscosity, make the necessary mass or volume adjustments to ensure the required amount of shell-forming reagent.

[0058] S3, Prepare the aqueous phase:

[0059] a. Prepare the required volume of polyvinyl alcohol solution and dilute it with appropriate deionized water to obtain the desired concentration (4-5%).

[0060] b. Stir or heat the solution to ensure that the polyvinyl alcohol is completely dissolved and forms a homogeneous aqueous phase.

[0061] S4, a mixture of oil and water phases:

[0062] a. Gradually mix the shell-forming reagent and the aqueous phase, and stir using a stirrer or other suitable mixing device.

[0063] b. Pay attention to controlling the mixing speed and time to ensure that the shell-forming reagent and the aqueous phase are thoroughly mixed and form a stable emulsion.

[0064] S5, Shear Blend:

[0065] a. Place the emulsion in a suitable container and use a high-speed shearing device to shear and mix it.

[0066] b. Control the shearing speed, time, and position of the shearing device to ensure that the microcapsules in the emulsion are evenly dispersed and have a narrow particle size distribution.

[0067] S6, with the addition of tetraethylenepentamine:

[0068] a) Tetraethylenepentamine is gradually added to the emulsion after shear mixing, while stirring to promote the reaction.

[0069] b. Pay attention to controlling the addition rate and stirring time of tetraethylenepentamine to ensure that tetraethylenepentamine reacts fully with the shell-forming agent at the emulsion interface.

[0070] S7, Reaction and Stirring:

[0071] a. The reaction is carried out at a given temperature (e.g., 25°C) and at a specific stirring speed (e.g., 800 rpm).

[0072] b. Carefully control the reaction time to ensure that the shell-forming reagent is deposited around the photosensitive core component and forms a solid microcapsule shell.

[0073] S8, centrifugation and washing:

[0074] a) Place the reacted microcapsule emulsion in a centrifuge and centrifuge at an appropriate speed and time to separate the microcapsules and residual liquid.

[0075] b. Use deionized water to wash to remove unreacted reagents and impurities, and repeat the washing step multiple times to ensure thorough washing.

[0076] S9, Drying:

[0077] a. Transfer the washed microcapsule sample to a suitable container or filter to remove excess moisture.

[0078] b. Dry the microcapsule sample overnight at room temperature (e.g., 25°C) to remove residual moisture and obtain a solid microcapsule sample.

[0079] Photosensitive microcapsule technology is an attractive technology that has yielded significant results in fields such as medicine, biology, and food. It utilizes the unique shell structure of microcapsules to encapsulate and protect core components, thereby improving the quality, safety, and functional control of liquid or solid substrates. Specifically, the shell of photosensitive microcapsules possesses photocrosslinking properties. When subjected to external stimuli, such as light, temperature changes, or the application of an electric field, the core components within the shell undergo a photocrosslinking reaction. By combining electrical treeing damage repair in the field of electrical insulation with photosensitive microcapsule technology, the effective repair and restoration of insulation performance in damaged areas is crucial for ensuring the reliability of power equipment and the stability of systems.

[0080] This invention proposes a smart insulating material for phototriggered microcapsules. Compared to temperature-triggered and pH-triggered microcapsules, phototriggered microcapsules have the advantage of non-contact triggering. The microcapsules can be triggered by light irradiation without direct contact, thus avoiding the side effects or contamination problems that may be caused by physical contact. This makes phototriggered microcapsules more flexible and controllable in certain application scenarios.

[0081] Secondly, phototriggered microcapsules have the characteristic of rapid triggering response. Light travels very fast in an instant, so phototriggers can achieve rapid release or reaction of microcapsules. This can play an important role in applications that require rapid response and immediate release, such as precise control of drug release or activation of photosensitive materials.

[0082] In addition, phototriggered microcapsules have the advantage of high tunability. By adjusting parameters such as light intensity, wavelength, or duration, the release behavior of phototriggered microcapsules can be precisely controlled. This tunability makes phototriggered microcapsules a promising candidate for a wide range of applications, such as light-controlled sensors, photostimulated therapy, and functional modulation of photosensitive materials.

[0083] Example 2

[0084] Referring to Figures 1-7, a second embodiment of the present invention provides an apparatus for preparing phototriggered microcapsules, the apparatus comprising:

[0085] The stirring mechanism 100 includes a magnetic stirrer 101, a melting cup 102 disposed on the magnetic stirrer 101, a reagent section 103 disposed on the magnetic stirrer 101, an extension section 104 disposed on the reagent section 103, a power section 105 disposed on the reagent section 103, a temperature measuring section 106 disposed on the extension section 104, a protection section 107 disposed on the temperature measuring section 106, a limiting section 108 disposed on the extension section 104, and a docking section 109 disposed on the extension section 104.

[0086] The limiting mechanism 200 includes a squeezing part 201 disposed on the magnetic stirrer 101, a rotating part 202 disposed on the squeezing part 201, and a snap-fit ​​part 203 disposed on the rotating part 202.

[0087] The reagent section 103 includes a fixed bracket 103a mounted on the magnetic stirrer 101, a reagent container 103b mounted on the fixed bracket 103a, and a container lid 103c mounted on the reagent container 103b.

[0088] Preferably, the reagent container 103b is rotatably mounted on the top of the fixed bracket 103a via a bearing, allowing the reagent container 103b to rotate and ensuring normal use of the device. The reagent container 103b is threadedly connected to the lid 103c for easy addition of reagents.

[0089] The extension 104 includes a rotating plate 104a disposed on the reagent container 103b, an extension plate 104b disposed on the rotating plate 104a, and an adjustment groove 104c disposed on the extension plate 104b.

[0090] Preferably, the rotating plate 104a is fixedly mounted on the reagent container 103b, and the setting of the adjustment groove 104c allows the temperature detector 106a to be adjusted, thereby adapting to different sizes of dissolving cups 102 and increasing the applicability of the device.

[0091] The power unit 105 includes an electric motor 105a mounted on a fixed bracket 103a, a gear 105b mounted on the electric motor 105a, and a gear ring 105c mounted on the reagent container 103b and adapted to the gear 105b.

[0092] Preferably, the motor 105a is fixedly mounted on the fixed bracket 103a. The motor 105a drives the gear 105b to rotate the gear ring 105c, and the gear ring 105c drives the reagent barrel 103b to rotate.

[0093] The temperature measuring unit 106 includes a temperature detector 106a disposed in the regulating groove 104c, a battery 106b disposed on the extension plate 104b and connected to the temperature detector 106a, and a detection probe 106c disposed on the temperature detector 106a.

[0094] Preferably, the temperature detector 106a is electrically connected to the battery 106b via a wire, and the detection probe 106c is used to detect the solution temperature.

[0095] The protection unit 107 includes a protective sleeve 107a disposed on the temperature detector 106a, a liquid flow chamber 107b disposed on the protective sleeve 107a, a clip 107c disposed on the protective sleeve 107a, a liquid outlet hole 107d disposed on the protective sleeve 107a, and a liquid inlet hole 107e disposed on the protective sleeve 107a.

[0096] Preferably, the protective sleeve 107a is made of glass. Glass is a relatively inert material that will not react with the chemicals in the experiment or interfere with the experimental results, ensuring that the solution will not be contaminated and will not corrode the device. The design of the flow chamber 107b ensures that the protective sleeve 107a not only provides protection but also ensures the outflow of liquid, allowing the reagent to flow into the container.

[0097] The design of the clamp 107c ensures the stability of the protective sleeve 107a and prevents the protective sleeve 107a from shifting during stirring, thereby ensuring the fit between the liquid inlet hole 107e and the docking hole 109e and ensuring the normal operation of the device.

[0098] The 107d outlet holes are evenly distributed from top to bottom, allowing reagents to flow into the solution at different depths. The mixing effect is generally better when reagents flow into the solution at different depths compared to direct addition. This is mainly determined by the following factors: 1. Laminar flow effect: When reagents are slowly added to the solution from different depths, laminar flow is formed. This is an ordered flow pattern that reduces energy loss during turbulence and mixing. 2. Diffusion effect: The reagent gradually diffuses into the solution at different depths, helping to distribute it more evenly. This diffusion process is slower than direct addition to the center of the solution, but it reduces the problem of excessively high local concentrations. 3. Reduction of local supersaturation: When adding reagents directly to the solution, if the reagent concentration is high, supersaturation may occur in local areas, leading to precipitation or crystallization. Adding reagents at different depths reduces the risk of local supersaturation. 4. Improves mixing uniformity: Adding reagents at different depths can more effectively utilize the natural convection and diffusion mechanisms of the solution, thereby improving the overall mixing uniformity of the solution; 5. Reduces bubble formation: Direct addition of the solution, especially rapid addition, may introduce air and form bubbles, while adding reagents at different depths can reduce bubble formation; 6. Temperature control: In some chemical processes that require strict temperature control, adding reagents at different depths can more evenly distribute heat and avoid local overheating; 7. Reduces the local intensity of chemical reactions: If the reagent reacts very violently with certain components in the solution, adding reagents at different depths can reduce this localized violent reaction, thereby controlling the reaction rate; 8. Improves safety: For some hazardous chemicals, adding reagents at different depths can reduce the risks during operation.

[0099] The limiting part 108 includes a limiting groove 108a disposed on the extension plate 104b, a limiting slider 108e disposed in the limiting groove 108a, a limiting arc plate 108b disposed on the limiting slider 108e and adapted to the temperature detector 106a, a limiting stop bar 108c disposed on the limiting arc plate 108b, a limiting side groove 108d disposed on the extension plate 104b, and a fixing bolt 108f disposed in the limiting side groove 108d and connected to the limiting slider 108e.

[0100] Preferably, the limiting grooves 108a are provided on both sides of the top of the extension plate 104b to increase the stability of the limiting arc plate 108b. The limiting arc plate 108b is used to limit and block the temperature detector 106a, preventing the centrifugal force from causing the temperature detector 106a to collide with the inner wall of the melting cup 102, thus increasing the safety of the device. The limiting baffle 108c prevents the temperature detector 106a from moving upward, further increasing the stability of the temperature detector 106a. The limiting side groove 108d is connected to the limiting groove 108a. The fixing bolt 108f is threadedly connected to the limiting slider 108e. Rotating the fixing bolt 108f squeezes the limiting side groove 108d, thereby fixing the limiting arc plate 108b.

[0101] The docking section 109 includes a docking groove 109a disposed on the extension plate 104b, a docking ring 109b disposed on the docking groove 109a, a sealing gasket 109c disposed inside the docking ring 109b, a slot 109d disposed on the docking ring 109b and adapted to the slot head 107c, a docking hole 109e disposed on the docking ring 109b, and a flexible tube 109f disposed between the docking ring 109b and the reagent container 103b.

[0102] Preferably, the docking groove 109a is provided on both sides of the bottom of the extension plate 104b, allowing the docking ring 109b to slide, thereby ensuring that the docking ring 109b can move with the temperature detector 106a and ensuring the normal use of the device. The sealing gasket 109c is provided to increase the sealing performance of the docking ring 109b and prevent reagent leakage. The slot 109d is used to limit the temperature detector 106a and prevent the temperature detector 106a from deflecting, thereby ensuring the docking of the docking hole 109e. One end of the hose 109f is connected to the reagent container 103b, and the other end is connected to the docking ring 109b.

[0103] During use, rotate the fixing bolt 108f to loosen the limiting slider 108e. Move the limiting arc plate 108b according to the size of the dissolving cup 102 to prevent the temperature detector 106a from touching the inner wall of the dissolving cup 102. Insert the temperature detector 106a into the adjusting groove 104c and the docking ring 109b in sequence, and simultaneously insert the clamp 107c into the clamping slot 109d, thus completing the installation of the temperature detector 106a. Add the reagent to the dissolving cup 102. During the dissolution process, start the magnetic stirrer 101 to promote the dissolution and uniform mixing of the components. Detect the solution temperature using the detection probe 106c. After the photoinitiator is completely dissolved, add ethyltrichlorosilane to the reagent container 103. Inside reagent barrel 103b, the solution flows out sequentially through hose 109f, inlet 107e, protective sleeve 107a, and outlet 107d, thus flowing into different depths of the solution. At the same time, motor 105a is started, driving gear 105b to rotate gear ring 105c. Gear ring 105c drives reagent barrel 103b to rotate rotating plate 104a. Rotating plate 104a drives extension plate 104b to rotate temperature detector 106a and protective sleeve 107a, thereby stirring the solution. Simultaneously, due to centrifugal force, temperature detector 106a moves along adjustment groove 104c and comes into close contact with limiting arc plate 108b, thereby limiting temperature detector 106a.

[0104] Example 3

[0105] Referring to Figures 5-8, this is the third embodiment of the present invention. This embodiment differs from the second embodiment in that the extrusion section 201 includes a mounting plate 201a disposed on the magnetic stirrer 101, an extrusion strip 201b disposed on the mounting plate 201a, a limiting tooth 201c disposed on the extrusion strip 201b, and an extrusion plate 201d disposed on the extrusion strip 201b.

[0106] Preferably, at least three mounting plates 201a are provided, with three points defining a circle to ensure the stability of the melting cup 102. The extrusion strip 201b is slidably disposed on the mounting plate 201a, the limiting tooth 201c is a right trapezoid, and the extrusion plate 201d is an arc plate to better fit the melting cup 102.

[0107] By setting the extrusion plate 201d, not only can the melting cup 102 be extruded and fixed, thereby ensuring the stability of the melting cup 102, but the melting cup 102 can also be positioned at the center of the magnetic stirrer 101, increasing the magnetic swirling effect of the magnetic stirrer 101. At the same time, the melting cup 102 being positioned at the center of the magnetic stirrer 101 ensures that the temperature detector 106a will not touch the inner wall of the melting cup 102 when it rotates, further increasing the safety of the device.

[0108] The rotating part 202 includes a mounting ring 202a disposed on the mounting plate 201a, a rotating ring 202b disposed on the mounting ring 202a, an arc-shaped triangular plate 202c disposed on the rotating ring 202b, and a protrusion 202d disposed on the arc-shaped triangular plate 202c.

[0109] Preferably, the mounting ring 202a is fixedly mounted on the mounting plate 201a, and the rotating ring 202b is rotatably mounted on the mounting ring 202a via a bearing. The arc surface of the arc-shaped triangular plate 202c is in close contact with the end of the extrusion strip 201b. The rotation of the arc-shaped triangular plate 202c can push the end of the extrusion strip 201b, causing the extrusion strip 201b to move and ensuring the normal use of the device. At the same time, the arc-shaped triangular plate 202c corresponds to the extrusion strip 201b, and the rotating ring 202b can be rotated to push multiple extrusion strips 201b, making operation convenient.

[0110] The locking part 203 includes a locking rod 203a disposed on the mounting ring 202a, a locking spring 203b disposed on the locking rod 203a, a locking block 203c disposed on the locking rod 203a and adapted to the limiting tooth 201c, and an annular handle 203d disposed on the locking rod 203a.

[0111] Preferably, the locking rod 203a is slidably mounted on the mounting ring 202a, and the ring handle 203d connects multiple locking rods 203a together, eliminating the need to pull out each locking rod 203a individually, making operation convenient.

[0112] The remaining structure is the same as that in Example 2.

[0113] During use, place the melting cup 102 on the magnetic stirrer 101, rotate the rotating ring 202b to drive the arc-shaped triangular plate 202c to rotate, the arc-shaped triangular plate 202c squeezes the extrusion strip 201b to move the extrusion plate 201d, and the extrusion plate 201d squeezes the melting cup 102 to fix the melting cup 102. When it is necessary to release the limit, pull the ring handle 203d to move the locking rod 203a. The locking rod 203a drives the locking block 203c away from the limiting tooth 201c, thereby releasing the limit on the extrusion plate 201d, and the melting cup 102 can be taken out directly.

[0114] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0115] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0116] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for preparing photo-triggered microcapsules, characterized in that: The method comprises the following steps: Preparation of the photosensitive core component: Dissolve the photoinitiator using an appropriate solvent under laboratory conditions to obtain a homogeneous solution, use a magnetic stirrer during the dissolution process to facilitate the dissolution and uniform mixing of the components; Preparation of the shell-forming reagent: Weigh the resin and place it in an appropriate container, gradually add ethyltrichlorosilane, and at the same time use a stirrer or other appropriate mixing device to control the viscosity and mixing uniformity; Preparation of the aqueous phase: Prepare the required volume of polyvinyl alcohol solution and dilute it with appropriate deionized water to obtain the desired concentration, stir or heat the solution to ensure complete dissolution and form a homogeneous aqueous phase; Mixing of the oil phase and the aqueous phase: Gradually mix the shell-forming reagent and the aqueous phase, and use a stirrer or other appropriate mixing device for stirring; Shearing mixing: Place the emulsion in an appropriate container and use a high-speed shearing device for shearing mixing; Addition of tetraethylenepentamine: Gradually add tetraethylenepentamine to the emulsion after shearing mixing, and at the same time stir to facilitate the reaction; Reaction and stirring: Carry out the reaction at a given temperature under a specific stirring speed; Centrifugation and washing: Place the microcapsule emulsion after the reaction is completed in a centrifuge and centrifuge at an appropriate speed and time to separate the microcapsules and residual liquid; Drying: Transfer the washed microcapsule sample to an appropriate container or filter to remove excess moisture.

2. An apparatus for preparing photo-triggered microcapsules, characterized by comprising: The application is applied to the preparation method of the light-triggered microcapsule as claimed in claim 1, and the preparation device of the light-triggered microcapsule comprises a stirring mechanism (100), a magnetic stirrer (101), a solution cup (102) arranged on the magnetic stirrer (101), a reagent part (103) arranged on the magnetic stirrer (101), an extension part (104) arranged on the reagent part (103), a power part (105) arranged on the reagent part (103), a temperature measuring part (106) arranged on the extension part (104), a protection part (107) arranged on the temperature measuring part (106), a limiting part (108) arranged on the extension part (104), and a docking part (109) arranged on the extension part (104). The limiting mechanism (200) comprises a pressing part (201) arranged on the magnetic stirrer (101), a rotating part (202) arranged on the pressing part (201), and a clamping part (203) arranged on the rotating part (202).

3. The apparatus for preparing photo-triggered microcapsules according to claim 2, wherein: The reagent part (103) comprises a fixed support (103a) arranged on the magnetic stirrer (101), a reagent barrel (103b) arranged on the fixed support (103a), and a barrel cover (103c) arranged on the reagent barrel (103b).

4. The apparatus for preparing photo-triggered microcapsules according to claim 3, wherein: The extension part (104) comprises a rotating plate (104a) arranged on the reagent barrel (103b), an extension plate (104b) arranged on the rotating plate (104a), and an adjusting groove (104c) arranged on the extension plate (104b).

5. The apparatus for preparing photo-triggered microcapsules according to claim 4, wherein: The power part (105) comprises a motor (105a) arranged on the fixed support (103a), a gear (105b) arranged on the motor (105a), and a gear ring (105c) arranged on the reagent barrel (103b) and matched with the gear (105b).

6. The apparatus for preparing photo-triggered microcapsules according to claim 5, wherein: The temperature measuring part (106) comprises a temperature detector (106a) arranged in the adjusting groove (104c), a battery (106b) arranged on the extension plate (104b) and connected with the temperature detector (106a), and a detection probe (106c) arranged on the temperature detector (106a). The protection part (107) comprises a protective sleeve (107a) arranged on the temperature detector (106a), a flow cavity (107b) arranged on the protective sleeve (107a), a clamping head (107c) arranged on the protective sleeve (107a), a liquid outlet hole (107d) arranged on the protective sleeve (107a), and a liquid inlet hole (107e) arranged on the protective sleeve (107a).

7. The apparatus for preparing photo-triggered microcapsules according to claim 6, wherein: The limiting part (108) comprises a limiting sliding groove (108a) arranged on the extension plate (104b), a limiting sliding block (108e) arranged in the limiting sliding groove (108a), a limiting arc-shaped plate (108b) arranged on the limiting sliding block (108e) and matched with the temperature detector (106a), a limiting baffle (108c) arranged on the limiting arc-shaped plate (108b), a limiting side groove (108d) arranged on the extension plate (104b), and a fixing bolt (108f) arranged in the limiting side groove (108d) and connected with the limiting sliding block (108e).

8. The apparatus for preparing photo-triggered microcapsules according to claim 7, wherein: The docking part (109) comprises a docking sliding groove (109a) arranged on the extension plate (104b), a docking ring (109b) arranged on the docking sliding groove (109a), a sealing gasket (109c) arranged in the docking ring (109b), a clamping groove (109d) arranged on the docking ring (109b) and matched with the clamping head (107c), a docking hole (109e) arranged on the docking ring (109b), and a hose (109f) arranged between the docking ring (109b) and the reagent barrel (103b).

9. The apparatus for preparing photo-triggered microcapsules according to any one of claims 5 to 8, characterized in that: The extrusion part (201) comprises a mounting plate (201a) arranged on the magnetic stirrer (101), an extrusion strip (201b) arranged on the mounting plate (201a), a limiting tooth (201c) arranged on the extrusion strip (201b), and an extrusion plate (201d) arranged on the extrusion strip (201b).

10. The apparatus for preparing photo-triggered microcapsules according to claim 9, characterized in that: The rotating part (202) comprises a mounting ring (202a) arranged on the mounting plate (201a), a rotating ring (202b) arranged on the mounting ring (202a), an arc-shaped triangular plate (202c) arranged on the rotating ring (202b), and a protruding block (202d) arranged on the arc-shaped triangular plate (202c). The clamping part (203) comprises a clamping rod (203a) arranged on the mounting ring (202a), a clamping spring (203b) arranged on the clamping rod (203a), a clamping block (203c) arranged on the clamping rod (203a) and matched with the limiting tooth (201c), and an annular handle (203d) arranged on the clamping rod (203a).

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