Synthesis reaction device for light-cured resin

Abstract

The utility model discloses a synthetic reaction device for light-cured resin, which is characterized by comprising a metal stirring pipe with a hollow structure; a sand core structure is arranged at the stirring end of the metal stirring pipe; the sand core structure is used for controlling gas in the hollow structure to flow out of the metal stirring pipe and preventing stirred reaction liquid from flowing into the metal stirring pipe at the same time; a plurality of metal stirring blades are arranged on the periphery of the stirring end of the metal stirring pipe; the ventilation end of the metal stirring pipe is connected with an air outlet of an external ventilation pipeline through a clamping structure. According to the utility model, the non-uniformity of the oxygen polymerization inhibition effect on the surface and inside of the reaction liquid in the synthesis process is avoided, and the uniformity of the introduced air in the reaction liquid can be ensured to the greatest extent by introducing the air into the hollow stirring paddle; the synthesis reaction device for the light-cured resin can effectively guarantee the stability of synthesis batches.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory detection, in particular to a device for photocuring resin synthesis reaction. Background Art

[0002] Photocurable resin, also known as photosensitive resin, is an oligomer that can undergo physical and chemical changes in a short period of time after being exposed to light, and then cross-link and solidify. Photocurable resin is a photosensitive resin with a relatively low molecular weight and has reactive groups that can be photocured, such as unsaturated double bonds or epoxy groups. Photocurable resin is the base resin of photocurable coatings. It is compounded with photoinitiators, reactive diluents and various additives to form photocurable coatings.

[0003] The synthesis of photocurable resins is mostly carried out by introducing unsaturated double bonds at the end groups of polymers through chemical reactions, usually functionalized unsaturated double bonds of (meth)acrylates, which is a relatively convenient preparation method. The synthesis reaction usually needs to be carried out under heating conditions. Since the (meth)acrylate functional group is easy to polymerize under heating conditions, a certain amount of inhibitor needs to be added to ensure the normal progress of the reaction. However, too high an inhibitor content will affect the efficiency of photocuring used in the later stage, and insufficient inhibitor addition will not achieve an effective inhibitory effect. A common method is to pass air into the reactor during the reaction process to achieve an effective inhibitory effect through the inhibitory synergistic effect of the oxygen entering the reactor.

[0004] The method of introducing air into the synthesis reactor by means of an air pump or compressed air usually results in the introduced air only existing in the upper part of the reaction liquid, which may result in insufficient uniformity of the inhibition effect on the surface and inside of the reaction liquid, and may easily lead to insufficient stability between batches, especially when the amount of the synthetic reaction increases. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a device for photocurable resin synthesis reaction.

[0006] The utility model avoids the unevenness of the oxygen inhibition effect on the surface and inside of the reaction liquid during the synthesis process, and can maximize the uniformity of the air in the reaction liquid after the air is introduced by introducing air into the hollow stirring paddle. The utility model is a synthesis reaction device for photocurable resins that effectively ensures the stability of the synthesis batch.

[0007] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0008] A device for photocurable resin synthesis reaction, comprising:

[0009] A metal stirring tube, wherein the metal stirring tube is a hollow structure;

[0010] A sand core structure is provided at the stirring end of the metal stirring tube;

[0011] The sand core structure is used to control the gas in the hollow structure to flow out of the metal stirring tube while preventing the stirred reaction liquid from flowing into the metal stirring tube;

[0012] A plurality of metal stirring blades are arranged on the outer periphery of the stirring end of the metal stirring tube;

[0013] The ventilation end of the metal stirring tube is connected to the air outlet of the external ventilation pipeline through a clamping structure.

[0014] In a preferred embodiment of the present invention, the metal stirring tube is a stirring tube made of stainless steel.

[0015] In a preferred embodiment of the present invention, the metal stirring blade is a stirring blade made of stainless steel.

[0016] In a preferred embodiment of the utility model, the snap-fit ​​structure is a buckle arranged on the outer periphery of the ventilation end of the metal stirring tube, and a roller bearing arranged at the air outlet of the ventilation pipeline in cooperation with the buckle.

[0017] In a preferred embodiment of the present invention, the stirred reaction liquid is arranged in a reaction container.

[0018] In a preferred embodiment of the present invention, a heating kettle is arranged outside the reaction container.

[0019] The beneficial effects of the utility model are:

[0020] The utility model avoids the unevenness of the oxygen inhibition effect on the surface and inside of the reaction liquid during the synthesis process, and can maximize the uniformity of the air in the reaction liquid after the air is introduced by introducing air into the hollow stirring paddle. The utility model is a synthesis reaction device for photocurable resins that effectively ensures the stability of the synthesis batch. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a schematic diagram of the use of the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] like Figure 1 or Figure 2 The device shown is used for photocurable resin synthesis reaction, including a metal stirring tube 100. The metal stirring tube 100 is a hollow structure. The purpose of setting the hollow structure is to facilitate gas circulation.

[0026] In order to further prevent corrosion, the metal stirring tube 100 is configured as a stirring tube made of stainless steel.

[0027] A sand core structure 110 is provided at the stirring end 101 of the metal stirring tube 100; the sand core structure 110 controls the gas in the hollow structure to flow out of the metal stirring tube 100 while preventing the stirred viscous reaction liquid from flowing into the hollow structure of the metal stirring tube 100. The wall thickness of the hollow structure is 0.2-0.25 mm and the diameter is 0.7-1.0 cm.

[0028] A plurality of metal stirring blades 120 are disposed on the outer periphery of the stirring end 101 of the metal stirring tube 100 . To prevent corrosion, the metal stirring blades 120 are also made of stainless steel.

[0029] The size of the metal stirring blade 120 is 2-4 cm.

[0030] The stirring blades 120 can be configured to be fan-shaped, ring-shaped, or other irregular shapes as needed.

[0031] The ventilation end 102 of the metal stirring tube 100 is connected to the gas outlet 301 of the external ventilation pipeline 300 through the clamping structure 200 .

[0032] The snap-fit ​​structure 200 has a snap-fit ​​210 at the ventilation end 102 of the metal stirring tube 100, and a roller bearing 220 that cooperates with the snap-fit ​​210 and is arranged at the air outlet 301 of the ventilation pipeline 300. The roller bearing 220 cooperates with the snap-fit ​​210 to connect the air outlet 301 of the ventilation pipeline 300 entering from the outside. During the reaction process, the metal stirring blade 120 will rotate under the drive of the external force in the metal stirring tube (not shown in the figure). The roller bearing 220 can ensure that the snap-fit ​​structure 200 is always in a stable state to prevent the ventilation pipeline 300 from twisting.

[0033] The stirred reaction liquid is placed in a reaction vessel 400 , and a heating kettle 410 is placed outside the reaction vessel 400 .

[0034] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above.

[0035] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A device for photocurable resin synthesis reaction, characterized in that: include: A metal stirring tube, wherein the metal stirring tube is a hollow structure; A sand core structure is provided at the stirring end of the metal stirring tube; The sand core structure is used to control the gas in the hollow structure to flow out of the metal stirring tube while preventing the stirred reaction liquid from flowing into the metal stirring tube; A plurality of metal stirring blades are arranged on the outer periphery of the stirring end of the metal stirring tube; The ventilation end of the metal stirring tube is connected to the air outlet of the external ventilation pipeline through a clamping structure; The metal stirring tube is a stirring tube made of stainless steel; The metal stirring blade is a stirring blade made of stainless steel; The clamping structure is a buckle arranged on the outer periphery of the ventilation end of the metal stirring tube, and a roller bearing arranged at the air outlet of the ventilation pipeline in cooperation with the buckle.

2. A device for photocurable resin synthesis reaction as claimed in claim 1, characterized in that: The stirred reaction liquid is arranged in a reaction container.

3. A device for photocurable resin synthesis reaction as claimed in claim 2, characterized in that: A heating kettle is arranged outside the reaction container.

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