Improved plugging binder as well as preparation method and application thereof

Abstract

The invention relates to an improved leaking stoppage binder applied to the field of binder manufacturing and a preparation method and application thereof, through arrangement of a mixing dispersion machine and the like, a plurality of stirring plates can be located at the edge of a material stirring vortex, and the situation that the stirring plates are not in contact with materials due to the fact that the vortex is wide in upper portion and narrow in lower portion is prevented; the stirring efficiency of the stirring plate is greatly improved, and energy is concentrated on the edge of a vortex, namely an area with the strongest liquid flow rate and shearing force, so that energy waste is reduced, materials can be stirred in a more efficient area, low-efficiency acting of a central area is avoided, and the stirring efficiency is improved. The stirring device is particularly suitable for treating viscous liquid, solid particle dispersion or reaction mixing and other complex applications, meanwhile, the position of the stirring plate can be adjusted in real time according to the actual vortex shape, viscosity or other physical properties of materials, so that the optimal stirring effect is achieved, and due to the flexibility, the stirring device can operate efficiently under various working conditions, and the service life of the stirring device is prolonged. The method is especially suitable for application scenes with complex requirements and dynamic changes.

Description

Technical Field

[0001] The invention relates to a leak-proof adhesive, in particular to an improved leak-proof adhesive used in the field of adhesive manufacturing, a preparation method and application thereof. Background Art

[0002] Epoxy resin leak-proof adhesive is a highly efficient repair material specially used for leaks in building cracks, etc. It is prepared based on epoxy resin, and various additives are added and stirred together to complete the preparation. It is mixed with a curing agent when used.

[0003] A Chinese patent with application number CN202021634277.7 discloses a high-speed disperser that uses an upper disperser disc and a lower disperser disc for stirring. The diameter of the upper disperser disc is larger than the diameter of the lower disperser disc, which can more efficiently cut the vortex formed by the rotation of the disperser disc, making the disperser more efficient and shortening the stirring time.

[0004] However, after adding different additives to epoxy resin, the viscosity will change, resulting in different diameters and sizes of the vortex. The dispersion disk cannot change in real time according to the changes in the vortex, so further improvement is needed. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that after adding different additives to the epoxy resin, the viscosity will change, resulting in different diameters and sizes of the vortex, and the dispersion disk cannot be changed in real time according to the changes in the vortex.

[0006] To solve the above problems, the present invention provides an improved plugging adhesive, which is composed of the following components, by weight percentage, 60-70% of bisphenol A epoxy resin, 20-30% of polyamide curing agent, 5-15% of calcium carbonate, 5-15% of fumed silica, 3-5% of polysulfide rubber, 0.5-1% of silane coupling agent, 0.1-0.5% of polyether modified silicone defoaming agent, and 0.1-0.5% of polyether modified silicone leveling agent.

[0007] A method for preparing an improved plugging adhesive comprises the following steps:

[0008] S1. Primary mixing: first pour bisphenol A epoxy resin into a mixing and dispersing machine, add calcium carbonate and fumed silica, and stir at a low speed to ensure that the filler is evenly dispersed in the resin matrix;

[0009] S2. Secondary mixing: adding polyether modified silicone defoamer, polyether modified silicone leveling agent and polysulfide rubber, and continuing to stir to improve the flexibility, fluidity and surface properties of the adhesive;

[0010] S3, three-time mixing: adding silane coupling agent and continuing stirring to enhance the bonding force between the epoxy resin and the filler, making the bonding performance of the material more stable, and obtaining a plugging adhesive;

[0011] S4. Construction: Add curing agent to the leak-proof adhesive and stir quickly and evenly before use.

[0012] As a further improvement of the present application, the mixing and dispersing machine includes a rotor and a mixing barrel, the output end of the rotor is fixedly connected to a power cylinder, the inner wall of the bottom end of the power cylinder is slidably connected to a driving piston, the inner wall of the top end of the power cylinder is fixedly connected to an electric push rod, and the output end of the electric push rod is fixedly connected to the driving piston.

[0013] As a further improvement of the present application, a hollow shaft is fixedly connected to the bottom end of the power cylinder, the hollow shaft is located on the inner side of the mixing barrel and the bottom end of the hollow shaft is fixedly connected to a bottom stirring plate, a plurality of turntables are fixedly connected to the outer wall of the hollow shaft, and a plurality of piston tubes evenly distributed in annular shapes are fixedly connected to the top of the turntable.

[0014] As a further improvement of the present application, one end of the piston tube is fixedly connected to a mounting tube, the inner wall of one end of the mounting tube is slidably connected to a push-pull rod, one end of the push-pull rod is fixedly connected to a stirring plate, the inner wall of the piston tube is slidably connected to a passive piston, one end of the piston tube is connected to the hollow shaft by a connecting tube, and the interior of the piston tube and the power cylinder are both filled with hydraulic oil.

[0015] As a further improvement of the present application, a linkage tube is fixedly connected to the inner wall of the mounting tube, an intermediate piston is slidably connected to the inner wall of the linkage tube, one end of the intermediate piston is fixedly connected to a load-bearing rod, and one end of the load-bearing rod is fixedly connected to the inner groove, and a support rod is fixedly connected between one end of the passive piston and the load-bearing rod.

[0016] As another improvement of the present application, an inner groove is opened at one end of the push-pull rod, one end of the inner groove extends to one side of the stirring plate, a hose is fixedly connected between one end of the inner groove and one end of the linkage pipe, one end of the push-pull rod is fixedly connected to a column, and the column is fixedly connected to one end of the inner groove close to the stirring plate, and the inner wall of the column is fixedly connected to a waterproof and breathable membrane.

[0017] As another improved supplement of the present application, the mixing barrel is configured to be conical, and a shield is fixedly connected to the top of the turntable, and the shield is located on the outside of the piston tube; through the above configuration, a cylindrical container may produce flow dead zones at the bottom or corners, where the liquid cannot be effectively stirred, and the conical design can reduce these dead zones, because the liquid will naturally gather at the bottom and be rolled up by the agitator, avoiding the appearance of areas that are not fully mixed.

[0018] The invention discloses an application of an improved leak-proof adhesive, which is applied to the concrete structure of a building to repair cracks caused by aging or external force and prevent further water penetration and structural damage.

[0019] As another improvement of the present application, the improved leak-proof adhesive is filled into the cracks of the building by brushing or pouring.

[0020] To summarize, the present invention can locate multiple stirring plates at the edge of the material stirring vortex through the arrangement of a mixing disperser, etc., thereby preventing the multiple stirring plates from not contacting the material due to the fact that the vortex is wide at the top and narrow at the bottom, greatly improving the stirring efficiency of the stirring plates, and concentrating energy at the edge of the vortex, that is, the area with the strongest liquid flow rate and shear force. This not only reduces energy waste, but also can stir materials in more efficient areas, avoiding inefficient work in the central area. It is particularly suitable for complex applications such as processing viscous liquids, solid particle dispersion or reaction mixing. At the same time, the position of the stirring plates can be adjusted in real time according to the actual vortex shape, viscosity or other physical properties of the material, so as to achieve the optimal stirring effect. This flexibility enables it to maintain efficient operation under a variety of working conditions, and is particularly suitable for application scenarios requiring complex and dynamic changes.

[0021] Through the settings of the mixing barrel, etc., a cylindrical container may produce flow dead zones at the bottom or corners, where the liquid cannot be effectively stirred. The conical design can reduce these dead zones, because the liquid will naturally gather at the bottom and be rolled up by the agitator, avoiding the appearance of areas that are not fully mixed. At the same time, it can promote the formation of material vortexes. When the material is stirred, the rotating flow will gradually expand upward along the conical wall, and the liquid will be carried to the outer wall and then return to the agitator. This can effectively increase the coverage area of ​​the agitator and improve the flow and mixing efficiency in the entire container. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a flow chart of the method of use in the first and second embodiments of the present application;

[0023] Figure 2 This is a front view of a mixing and dispersing machine in the first embodiment of the present application;

[0024] Figure 3 This is a front cross-sectional view of the power cylinder in the first embodiment of the present application;

[0025] Figure 4 This is a top view of the turntable in the first embodiment of the present application;

[0026] Figure 5 This is a top cross-sectional view of the piston tube in the first embodiment of the present application;

[0027] Figure 6This is a state diagram of the push-pull rod when it is extended in the first embodiment of the present application;

[0028] Figure 7 This is a front cross-sectional view of a column in the first embodiment of the present application;

[0029] Figure 8 This is a diagram showing the position relationship between the stirring plate and the material vortex in the first and second embodiments of the present application.

[0030] Description of the numbers in the figure:

[0031] 1. Rotating head; 2. Power cylinder; 201. Driving piston; 202. Electric push rod; 3. Hollow shaft; 4. Bottom stirring plate; 5. Turntable; 6. Piston tube; 601. Mounting tube; 602. Push-pull rod; 603. Passive piston; 604. Connecting tube; 605. Linkage tube; 606. Intermediate piston; 607. Bearing rod; 608. Support rod; 609. Inner groove; 610. Hose; 611. Column; 612. Stirring plate; 613. Waterproof and breathable membrane; 7. Mixing barrel; 8. Protective cover. DETAILED DESCRIPTION

[0032] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0033] The first implementation method:

[0034] Figure 1-Figure 8 The invention discloses an improved plugging adhesive, which is composed of the following components, by weight percentage: 60-70% bisphenol A epoxy resin, 20-30% polyamide curing agent, 5-15% calcium carbonate, 5-15% fumed silica, 3-5% polysulfide rubber, 0.5-1% silane coupling agent, 0.1-0.5% polyether modified silicone defoaming agent and 0.1-0.5% polyether modified silicone leveling agent.

[0035] A method for preparing an improved plugging adhesive comprises the following steps:

[0036] S1. Primary mixing: first pour bisphenol A epoxy resin into a mixing and dispersing machine, add calcium carbonate and fumed silica, and stir at a low speed to ensure that the filler is evenly dispersed in the resin matrix;

[0037] S2. Secondary mixing: adding polyether modified silicone defoamer, polyether modified silicone leveling agent and polysulfide rubber, and continuing to stir to improve the flexibility, fluidity and surface properties of the adhesive;

[0038] S3, three-time mixing: adding silane coupling agent and continuing stirring to enhance the bonding force between the epoxy resin and the filler, making the bonding performance of the material more stable, and obtaining a plugging adhesive;

[0039] S4. Construction: Add curing agent to the leak-proof adhesive and stir quickly and evenly before use.

[0040] The mixing and dispersing machine includes a rotor 1 and a mixing barrel 7, wherein the output end of the rotor 1 is fixedly connected to a power cylinder 2, the inner wall of the bottom end of the power cylinder 2 is slidably connected to a driving piston 201, the inner wall of the top end of the power cylinder 2 is fixedly connected to an electric push rod 202, the output end of the electric push rod 202 is fixedly connected to the driving piston 201, the bottom end of the power cylinder 2 is fixedly connected to a hollow shaft 3, the hollow shaft 3 is located on the inner side of the mixing barrel 7 and the bottom end of the hollow shaft 3 is fixedly connected to a bottom stirring plate 4, a plurality of rotating disks 5 are fixedly connected to the outer wall of the hollow shaft 3, a plurality of piston tubes 6 evenly distributed in an annular shape are fixedly connected to the top of the rotating disk 5, one end of the piston tube 6 is fixedly connected to a mounting tube 601, a push-pull rod 602 is slidably connected to the inner wall of one end of the mounting tube 601, a stirring plate 612 is fixedly connected to one end of the push-pull rod 602, a passive piston 603 is slidably connected to the inner wall of the piston tube 6, one end of the piston tube 6 is connected to the hollow shaft 3 A connecting pipe 604 is connected between the piston tube 6 and the power cylinder 2. The interior of the piston tube 6 and the power cylinder 2 are filled with hydraulic oil. A linkage pipe 605 is fixedly connected to the inner wall of the mounting tube 601. An intermediate piston 606 is slidably connected to the inner wall of the linkage pipe 605. A load-bearing rod 607 is fixedly connected to one end of the intermediate piston 606, and one end of the load-bearing rod 607 is fixedly connected to the inner groove 609. A support rod 608 is fixedly connected between one end of the passive piston 603 and the load-bearing rod 607. An inner groove 609 is provided at one end of the push-pull rod 602, and one end of the inner groove 609 extends to one side of the stirring plate 612. A hose 610 is fixedly connected between one end of the inner groove 609 and one end of the linkage pipe 605. A column 611 is fixedly connected to one end of the push-pull rod 602, and the column 611 is fixedly connected to one end of the inner groove 609 close to the stirring plate 612. A waterproof and breathable membrane 613 is fixedly connected to the inner wall of the column 611.

[0041] When mixing materials, the materials are put into the mixing barrel 7, and the rotor 1 is started to drive the bottom stirring plate 4 to rotate and stir the materials in the mixing barrel 7 to mix them. At this time, the center of the material is in a conical vortex shape, and then the electric push rod 202 is started to drive the driving piston 201 to move downward. When the driving piston 201 moves downward, it pushes the passive piston 603 to move left. When the passive piston 603 moves left, it drives the push-pull rod 602 to move left through the support rod 608 and the bearing rod 607, so that the stirring plate 612 and the waterproof breathable membrane 613 gradually move away from the vortex. When the waterproof breathable membrane 613 is located at the vortex When the interior is not in contact with the material, air enters the interior of the linkage tube 605 through the passive piston 603, the inner groove 609 and the hose 610. At this time, the stirring plate 612 can move in the direction of the material. When the waterproof breathable membrane 613 is not located inside the vortex, the material cannot enter the linkage tube 605 through the waterproof breathable membrane 613, and the stirring plate 612 cannot continue to move away from the vortex and is located at the edge of the vortex to stir the material. Each time an additive is added, the stirring plate 612 is driven to retract and extend again, so that the stirring plate 612 can change according to the changes in the vortex.

[0042] The above-mentioned arrangement can make the multiple stirring plates 612 be located at the edge of the material stirring vortex, preventing the multiple stirring plates 612 from not contacting the material due to the fact that the vortex is wide at the top and narrow at the bottom, greatly improving the stirring efficiency of the stirring plates 612, and concentrating the energy at the edge of the vortex, that is, the area with the strongest liquid flow rate and shear force, which not only reduces energy waste, but also can stir the material in a more efficient area, avoiding inefficient work in the central area, and is particularly suitable for processing viscous liquids, solid particle dispersion or reaction mixing and other complex applications.

[0043] At the same time, the position of the stirring plate 612 can be adjusted in real time according to the actual vortex shape, viscosity or other physical properties of the material to achieve the optimal stirring effect. This flexibility enables it to maintain efficient operation under various working conditions and is particularly suitable for application scenarios requiring complex and dynamic changes.

[0044] The invention discloses an application of an improved leak-proof adhesive, which is applied to the concrete structure of a building to repair cracks caused by aging or external force and prevent further water penetration and structural damage.

[0045] The improved leak-proof adhesive is filled into building cracks by brushing or pouring.

[0046] The second implementation method:

[0047] Figure 1 and Figure 8A method for preparing an improved plugging adhesive is shown. Different from the first embodiment, the stirring barrel 7 is configured to be conical, and a shield 8 is fixedly connected to the top of the turntable 5, and the shield 8 is located on the outside of the piston tube 6. Through the above configuration, a cylindrical container may produce flow dead zones at the bottom or corners, where the liquid cannot be effectively stirred, and the conical design can reduce these dead zones because the liquid will naturally gather at the bottom and be rolled up by the agitator, avoiding the appearance of areas that are not fully mixed.

[0048] At the same time, it can promote the formation of material vortex. When the material is stirred, the rotating flow will gradually expand upward along the conical wall, and the liquid will be carried to the outer wall and then return to the agitator. This can effectively increase the coverage area of ​​the agitator and improve the flow and mixing efficiency in the entire container.

[0049] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An improved plugging adhesive, characterized in that: The composition is composed of the following components by weight percentage: 60-70% of bisphenol A epoxy resin, 20-30% of polyamide curing agent, 5-15% of calcium carbonate, 5-15% of fumed silica, 3-5% of polysulfide rubber, 0.5-1% of silane coupling agent, 0.1-0.5% of polyether modified silicone defoaming agent and 0.1-0.5% of polyether modified silicone leveling agent.

2. The method for preparing an improved leak-proof adhesive according to claim 1, characterized in that: The following steps are involved: S1. Primary mixing: first pour bisphenol A epoxy resin into a mixing and dispersing machine, add calcium carbonate and fumed silica, and stir at a low speed to ensure that the filler is evenly dispersed in the resin matrix; S2. Secondary mixing: adding polyether modified silicone defoamer, polyether modified silicone leveling agent and polysulfide rubber, and continuing to stir to improve the flexibility, fluidity and surface properties of the adhesive; S3, three-time mixing: adding silane coupling agent and continuing stirring to enhance the bonding force between the epoxy resin and the filler, making the bonding performance of the material more stable, and obtaining a plugging adhesive; S4. Construction: Add curing agent to the leak-proof adhesive and stir quickly and evenly before use.

3. The method for preparing an improved plugging adhesive according to claim 2, characterized in that: The mixing and dispersing machine comprises a rotor (1) and a mixing barrel (7); the output end of the rotor (1) is fixedly connected to a power cylinder (2); the inner wall of the bottom end of the power cylinder (2) is slidably connected to a driving piston (201); the inner wall of the top end of the power cylinder (2) is fixedly connected to an electric push rod (202); and the output end of the electric push rod (202) is fixedly connected to the driving piston (201).

4. The method for preparing an improved leak-proof adhesive according to claim 3, characterized in that: The bottom end of the power cylinder (2) is fixedly connected to a hollow shaft (3), the hollow shaft (3) is located inside the mixing barrel (7) and the bottom end of the hollow shaft (3) is fixedly connected to a bottom stirring disc (4), the outer wall of the hollow shaft (3) is fixedly connected to a plurality of rotating discs (5), and the top end of the rotating disc (5) is fixedly connected to a plurality of piston tubes (6) evenly distributed in an annular shape.

5. The method for preparing an improved leak-proof adhesive according to claim 4, characterized in that: One end of the piston tube (6) is fixedly connected to a mounting tube (601), the inner wall of one end of the mounting tube (601) is slidably connected to a push-pull rod (602), one end of the push-pull rod (602) is fixedly connected to a stirring plate (612), the inner wall of the piston tube (6) is slidably connected to a passive piston (603), one end of the piston tube (6) is connected to the hollow shaft (3) by a connecting tube (604), and the interior of the piston tube (6) and the interior of the power cylinder (2) are both filled with hydraulic oil.

6. The method for preparing an improved plugging adhesive according to claim 5, characterized in that: The inner wall of the installation tube (601) is fixedly connected to a linkage tube (605), the inner wall of the linkage tube (605) is slidably connected to an intermediate piston (606), one end of the intermediate piston (606) is fixedly connected to a bearing rod (607), and one end of the bearing rod (607) is fixedly connected to the inner groove (609), and a support rod (608) is fixedly connected between one end of the passive piston (603) and the bearing rod (607).

7. The method for preparing an improved leak-proof adhesive according to claim 6, characterized in that: An inner groove (609) is formed at one end of the push-pull rod (602), and one end of the inner groove (609) extends to one side of the stirring plate (612). A hose (610) is fixedly connected between one end of the inner groove (609) and one end of the linkage pipe (605). A column (611) is fixedly connected to one end of the push-pull rod (602), and the column (611) is fixedly connected to one end of the inner groove (609) close to the stirring plate (612). A waterproof breathable membrane (613) is fixedly connected to the inner wall of the column (611).

8. The method for preparing an improved plugging adhesive according to claim 7, characterized in that: The stirring barrel (7) is configured to be conical, and a protective cover (8) is fixedly connected to the top end of the rotating disk (5), and the protective cover (8) is located outside the piston tube (6).

9. The use of an improved leak-proof adhesive according to claim 1, characterized in that: The improved leak-proof adhesive is applied to the concrete structure of a building to repair cracks caused by aging or external forces and prevent further water penetration and structural damage.

10. The use of the improved leak-proof adhesive according to claim 9, characterized in that: The improved leak-proof adhesive is filled into the building cracks by brushing or pouring.

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