Preparation device of environmentally friendly flame-retardant adhesive for composite board and adhesive prepared therefrom

Abstract

The invention discloses a preparation device of an environmentally friendly flame-retardant adhesive for composite panels and the prepared adhesive, which relates to the technical field of adhesives and includes a base ring. The invention improves the structure of an existing device. After the base material is put in, the inside of the tank is first evacuated by a vacuum pump on the top of a mounting frame, and then the temperature in the tank is raised to 40-50 degrees Celsius by a heating mechanism. An eccentric swing mechanism is driven to rotate by a reduction motor arranged inside the base ring, and the eccentric swing mechanism drives the vacuum tank on the carrying tray to shake. The shaking and swinging mixing of the vacuum tank makes the raw materials mixed evenly and is not easy to generate bubbles, which can ensure that the adhesive maintains a stable state during the mixing process, so as to reduce the generation of bubbles, improve the uniformity and continuity of the adhesive bonding surface, thereby improving the bonding performance, making the product more reliable and durable, and ensuring the flame retardant performance while improving the environmental protection level of the adhesive.

Description

Technical Field

[0001] The invention relates to the technical field of adhesives, and more specifically to a preparation device of an environmentally friendly flame-retardant adhesive for a composite board and the prepared adhesive. Background Art

[0002] As the global awareness of environmental protection increases, the requirements for environmental protection of materials in the construction and industrial fields are also getting higher and higher. As one of the widely used building materials, the environmental performance of adhesives for composite boards has become the focus of industry attention. Traditional adhesives for composite boards contain volatile organic compounds (VOCs) and formaldehyde, which not only pollute the environment during the production process, but also may release harmful gases during the use of the boards, affecting human health. Therefore, the development of environmentally friendly flame retardant adhesives has become a hot topic in current research.

[0003] As a natural polymer material, soy protein is considered to be an ideal base material for preparing environmentally friendly adhesives due to its advantages such as renewability, good biodegradability and wide sources. Soy protein adhesives not only have good bonding properties, but also can improve the flame retardant properties of boards to a certain extent, meeting the dual requirements of modern building materials for environmental protection and safety. However, single soy protein adhesives still have deficiencies in flame retardant properties, and flame retardants need to be added to improve their flame retardant grade.

[0004] In the preparation process of adhesives, surfactants are one of the commonly used additives to improve the wettability and dispersibility of adhesives, thereby improving their bonding performance. However, traditional surfactants often contain ingredients that are harmful to the environment and do not meet the requirements of environmentally friendly adhesives. Therefore, replacing traditional surfactants with bio-based surfactants has become an effective way to improve the environmental protection level of adhesives. Bio-based surfactants are derived from renewable resources and have the advantages of being non-toxic and biodegradable, which can significantly reduce the pollution of adhesives to the environment.

[0005] However, the combination of soy protein and bio-based surfactants for the preparation of environmentally friendly flame-retardant adhesives also faces certain technical challenges. In particular, when using traditional stirring equipment for stirring, due to the unique chemical structure and properties of bio-based surfactants and the viscosity of soy protein, it is easy to cause a large number of bubbles to be generated in the adhesive. These bubbles not only affect the appearance quality of the adhesive, but may also reduce its bonding performance and flame retardant properties, and even affect the overall performance of the composite board bonding. In view of this, we propose a preparation device for an environmentally friendly flame-retardant adhesive for composite boards and the adhesive prepared therefrom. Summary of the invention

[0006] The object of the present invention is to provide a device for preparing an environmentally friendly flame-retardant adhesive for composite panels and the adhesive prepared therefrom, so as to solve the above-mentioned technical problems.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a device for preparing an environmentally friendly flame-retardant adhesive for a composite board material, comprising a base ring, a reduction motor is arranged inside the base ring, an eccentric swing mechanism is arranged inside the base ring and directly above the output end of the reduction motor, a carrying tray is arranged on the top of the eccentric swing mechanism, a vacuum mixing tank is arranged on the carrying tray, a heating mechanism is symmetrically arranged on the bottom end of the vacuum mixing tank, a carrying frame is arranged on the back of the base ring, a lifting mechanism is arranged on the carrying frame, a mounting frame is arranged at the output end of the lifting mechanism, a vacuum pump is arranged at the top of the mounting frame directly above the vacuum mixing tank, and the input end of the vacuum pump is connected to the top of the vacuum mixing tank through an exhaust pipe.

[0008] Preferably, a mounting ring plate is symmetrically provided on the carrying tray, the mounting ring plate is adapted to the vacuum mixing tank, the outer wall of the vacuum mixing tank is connected to the inner wall of the mounting ring plate, and a gap is left between the bottom end of the vacuum mixing tank and the carrying tray.

[0009] Preferably, the eccentric swing mechanism includes a mounting stand, an eccentric rotating member and a swing ring. The mounting stand is symmetrically arranged inside the base ring at a position on the side of the reduction motor. The eccentric rotating member is connected to the output end of the reduction motor. One end of the swing ring is rotatably connected to the mounting stand, and the other end of the swing ring is connected to the eccentric rotating member. The supporting tray is arranged at the top of the swing ring.

[0010] Preferably, the eccentric rotating member includes a main sleeve shaft body, a center sleeve hole, an eccentric inclined block and a rotating shaft. The center sleeve hole is opened on the main sleeve shaft body. The main sleeve shaft body is sleeved on the output end of the reduction motor through the center sleeve hole. The eccentric inclined block is connected to the outer wall of the main sleeve shaft body in an inclined state. One end of the rotating shaft is connected to the end of the eccentric inclined block away from the main sleeve shaft body, and the other end of the rotating shaft is connected to the bottom end of the rocking ring.

[0011] Preferably, the rocking ring comprises a bearing column, a straight connecting rod, a curved connecting rod, a rotating block A and a rotating block B, the bearing column is arranged at the end of the rotating shaft away from the eccentric tilting block, the straight connecting rod is connected to the outer wall of the bearing column, the rotating block A is rotatably connected to the mounting stand, the rotating block B is connected to the rotating block A through the curved connecting rod, and the straight connecting rod is rotatably connected to the rotating block B at one end away from the bearing column.

[0012] Preferably, the vacuum mixing tank comprises an outer tank body, an inner tank body, a tank cover, a central axis rod and a ball mixing assembly, the outer outer wall of the outer tank body is connected to the inner wall of the mounting ring plate, the inner tank body is arranged inside the outer tank body, one end of the tank cover is movably connected to the outer tank body and the top of the inner tank body, the other end of the tank cover is hoisted on the mounting frame, the central axis rod is arranged inside the inner tank body, and the ball mixing assembly is arranged on the central axis rod;

[0013] The central axis rod is provided with a plurality of movable grooves in a linear vertical shape, and the ball mixing assembly is sleeved on the movable grooves.

[0014] Preferably, the ball mixing assembly includes a movable leakage disk, a movable hole, a uniform hole and an elliptical mixing ball. The movable hole is opened at the center of the movable leakage disk, and a plurality of the movable leakage disks are movably mounted on a plurality of the movable grooves through the movable hole. The uniform holes are opened on the movable leakage disk at equal intervals, and the elliptical mixing ball is movably arranged at a position between two of the movable leakage disks.

[0015] Preferably, the top end of the uniform hole is hexagonal in shape, the bottom end of the uniform hole is triangular in shape, the diameter of the top end of the uniform hole is larger than the diameter of the bottom end of the uniform hole, and the major axis diameter of the elliptical mixing ball is equal to the distance between the top end of one of the active grooves to the bottom end of another active groove.

[0016] Preferably, the preparation method comprises the following steps:

[0017] S1, pretreatment and material preparation;

[0018] The mounting frame is driven to rise by the stroke of the lifting mechanism, and the mounting frame drives the can cover hoisted by it to rise, deionized water is added into the inner can body, and then soy protein isolate is added into the deionized water, and then the can cover is driven to move by the lifting mechanism to make it pressed and sealed, and the internal gas is discharged by the vacuum pump, and the reduction motor is driven to rotate, and the reduction motor drives the main sleeve shaft body to rotate, and the main sleeve shaft body drives the eccentric tilting block to rotate, and the eccentric tilting block is connected to the bottom end of the bearing column. Since the bearing column is connected to the rotating block B through a straight connecting rod, the two sides of the rotating block B are connected to the rotating block A through a curved connecting rod, and the rotating block A is rotatably connected to the mounting stand, so that the bearing column shakes, and the bearing column drives the top bearing tray to shake, and the bearing tray drives the vacuum mixing tank to shake, and the SPI solution is mixed;

[0019] S2, surfactant modification;

[0020] Add the bio-based surfactant to the SPI solution mixed in step S1, and continue to shake. The eccentric swing mechanism drives the tank to shake and tilt the movable drain plate. The multiple elliptical mixing balls on the movable drain plate roll, so that the raw materials are uniformly distributed on the left and right. When the long axis of the elliptical mixing ball rolls vertically, the movable drain plate is pushed to move on the movable groove of the central axis rod, so that the inside of the tank is evenly mixed from top to bottom, so that SDS is fully wrapped on the surface of the SPI molecules, and it is not easy to generate bubbles, thereby improving its dispersibility and wettability;

[0021] S3, flame retardant addition;

[0022] Add melamine phosphate to the above solution and continue the above shaking operation to make the flame retardant evenly dispersed in the system;

[0023] S4, reinforcing agent and filler are mixed;

[0024] Epoxidized soybean oil and nano-alumina powder are gradually added to the solution, and the above-mentioned shaking operation is repeated to ensure that the components are fully mixed to obtain an environmentally friendly flame-retardant adhesive for composite panels.

[0025] The present invention also provides an environmentally friendly flame-retardant adhesive for composite panels, which is prepared by the above-mentioned preparation method, and its raw materials include soy protein isolate (SPI), melamine phosphate (TMP), bio-based surfactant (sodium dodecyl sulfate, SDS), epoxidized soybean oil, nano-alumina and deionized water;

[0026] Soy protein isolate: 60% - as the main base material of adhesive, providing excellent adhesion and biodegradability;

[0027] Melamine phosphate: 15% - used as a flame retardant to improve the flame retardant properties of the adhesive;

[0028] Bio-based surfactant: 5% - used to improve the dispersibility of soy protein and the wetting properties of adhesives;

[0029] Epoxidized soybean oil: 10% - enhances the flexibility and water resistance of the adhesive;

[0030] Nano-alumina: 5% - as an inorganic filler to further improve flame retardancy and mechanical strength;

[0031] Deionized water: appropriate amount - adjust the viscosity of the system and ensure that all components are evenly mixed.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention improves the structure of the existing stirring and mixing device. After the base material is put in, the vacuum mixing tank is first evacuated by the vacuum pump on the top of the mounting frame, and then the temperature in the tank is raised to 40-50 degrees Celsius by the heating mechanism. The eccentric swing mechanism is driven to rotate by the reduction motor arranged inside the base ring, and the eccentric swing mechanism drives the vacuum mixing tank on the carrying tray to shake. The shaking and swinging mixing of the vacuum mixing tank makes the raw materials mixed evenly and is not easy to generate bubbles, which can ensure that the adhesive maintains a stable state during the mixing process to reduce the generation of bubbles, improve the uniformity and continuity of the adhesive bonding surface, thereby improving the bonding performance, making the product more reliable and durable, and ensuring the flame retardant performance while improving the environmental protection level of the adhesive.

[0034] 2. In the present invention, a main sleeve shaft is fixedly mounted on the output end of the reduction motor. When the reduction motor is driven to rotate, the reduction motor drives the main sleeve shaft to rotate, and the main sleeve shaft drives the eccentric tilting block to rotate. The eccentric tilting block is connected to the bottom end of the bearing column. Since the bearing column is connected to the rotating block B through a straight connecting rod, the two sides of the rotating block B are connected to the rotating block A through a curved connecting rod. The rotating block A is rotatably connected to the mounting stand, so that the bearing column shakes, and the bearing column drives the bearing tray at the top to shake, and the bearing tray drives the vacuum mixing tank to shake, so as to achieve a uniform mixing effect, effectively avoid or reduce the generation of bubbles due to excessive shear force, uneven mixing and the like during the mixing process, and ensure that key ingredients such as soy protein, bio-based surfactants, and flame retardants are evenly distributed in the adhesive.

[0035] 3. In the present invention, a central axis rod is arranged inside the inner tank body, and a movable leakage disk is movably mounted on the movable groove of the central axis rod. When the eccentric swing mechanism drives the tank body to shake and drives the movable leakage disk to tilt, several elliptical mixing balls on the movable leakage disk roll, so that the raw materials are evenly distributed on the left and right. When the long axis of the elliptical mixing ball rolls vertically, the movable leakage disk is pushed to move on the movable groove of the central axis rod, so that the inside of the tank body is evenly mixed from top to bottom, which not only improves the stability and efficiency of the preparation process, but also significantly improves the environmental protection performance, flame retardant performance, bonding performance and weather resistance of the adhesive.

[0036] 4. The uniform hole in the present invention has a hexagonal top and a triangular bottom. This special hole makes the material sink faster than it floats, which is beneficial to improving the flow efficiency and preventing the phenomenon of solidification and blockage caused by too slow flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of the mixing device of the present invention;

[0038] Figure 2 It is a schematic diagram of the bottom structure of the mixing device of the present invention;

[0039] Figure 3It is a schematic diagram of the structure of the base ring, the reduction motor, the eccentric swing mechanism, the carrying tray and the vacuum mixing tank of the present invention;

[0040] Figure 4 It is a schematic diagram of the split structure of the eccentric swing mechanism and the carrying tray of the present invention;

[0041] Figure 5 It is a structural schematic diagram of the eccentric swing mechanism of the present invention;

[0042] Figure 6 It is a schematic diagram of the structure of the vacuum mixing tank and the heating mechanism of the present invention;

[0043] Figure 7 It is a schematic diagram of the split structure of the vacuum mixing tank of the present invention;

[0044] Figure 8 It is a cross-sectional view of the inner tank body, the central axis rod and the ball mixing assembly structure schematic diagram of the present invention;

[0045] Fig. 9 It is a schematic diagram of the structure of the ball mixing assembly of the present invention;

[0046] Fig.10 It is a schematic diagram of the structure of the ball mixing assembly of the present invention in an inclined state;

[0047] Fig.11 It is a schematic diagram of the structure of the movable drain plate of the present invention;

[0048] Fig.12 It is a schematic diagram of the motion state of the ball mixing assembly of the present invention during shaking and mixing.

[0049] Description of the numbers in the figure:

[0050] 1. Base ring; 2. Speed ​​reduction motor; 3. Eccentric swing mechanism; 4. Carrying tray; 5. Vacuum mixing tank; 6. Heating mechanism; 7. Carrying frame; 8. Lifting mechanism; 9. Mounting frame; 10. Vacuum pump; 11. Exhaust pipe;

[0051] 301, mounting stand; 302, eccentric rotating member; 303, swing ring member;

[0052] 401. Install the ring plate;

[0053] 501, outer tank body; 502, inner tank body; 503, tank cover; 504, central axis rod; 505, ball mixing assembly; 506, movable tank;

[0054] 3021, main sleeve shaft body; 3022, center sleeve hole; 3023, eccentric tilting block; 3024, rotating shaft;

[0055] 3031, bearing column; 3032, straight connecting rod; 3033, curved connecting rod; 3034, rotating block A; 3035, rotating block B;

[0056] 5051. Movable leaking plate; 5052. Movable hole; 5053. Uniform hole; 5054. Elliptical mixing ball. DETAILED DESCRIPTION

[0057] Example 1: Figures 1 to 12 As shown, the present invention relates to a preparation device of an environmentally friendly flame-retardant adhesive for a composite board material, comprising a base ring 1, a reduction motor 2 is arranged inside the base ring 1, an eccentric swing mechanism 3 is arranged inside the base ring 1 and directly above the output end of the reduction motor 2, a carrying tray 4 is arranged on the top of the eccentric swing mechanism 3, a vacuum mixing tank 5 is arranged on the carrying tray 4, a heating mechanism 6 is symmetrically arranged on the bottom end of the vacuum mixing tank 5, a carrying frame 7 is arranged on the back of the base ring 1, a lifting mechanism 8 is arranged on the carrying frame 7, a mounting frame 9 is arranged on the output end of the lifting mechanism 8, a vacuum pump 10 is arranged on the top of the mounting frame 9 directly above the vacuum mixing tank 5, and the input end of the vacuum pump 10 is connected to the top of the vacuum mixing tank 5 through an exhaust pipe 11.

[0058] The present invention improves the structure of the existing stirring and mixing device. After the base material is put in, the vacuum mixing tank 5 is first evacuated by the vacuum pump 10 at the top of the mounting frame 9, and then the temperature in the tank is raised to 40-50 degrees Celsius by the heating mechanism 6. The eccentric swing mechanism 3 is driven to rotate by the reduction motor 2 arranged inside the base ring 1, and the eccentric swing mechanism 3 drives the vacuum mixing tank 5 on the carrying tray 4 to shake. The shaking and swinging mixing of the vacuum mixing tank 5 makes the raw materials mixed evenly and is not easy to generate bubbles, which can ensure that the adhesive maintains a stable state during the mixing process to reduce the generation of bubbles, improve the uniformity and continuity of the adhesive bonding surface, thereby improving the bonding performance, making the product more reliable and durable, and ensuring the flame retardant performance while improving the environmental protection level of the adhesive.

[0059] In the embodiment of the present invention, the carrying tray 4 is symmetrically provided with mounting ring plates 401, the mounting ring plates 401 are adapted to the vacuum mixing tank 5, the outer wall of the vacuum mixing tank 5 is connected to the inner wall of the mounting ring plates 401, and a gap is left between the bottom end of the vacuum mixing tank 5 and the carrying tray 4. In the present invention, two arc-shaped mounting ring plates 401 are provided on the carrying tray 4, and the vacuum mixing tank 5 is installed between the two mounting ring plates 401. There is a partial gap between the bottom end of the vacuum mixing tank 5 and the carrying tray 4, which is used to arrange the heating mechanism 6 to heat the vacuum mixing tank 5.

[0060] In the embodiment of the present invention, the eccentric swing mechanism 3 includes a mounting stand 301, an eccentric rotating member 302 and a swing ring 303. The mounting stand 301 is symmetrically arranged inside the base ring 1 at a position on the side of the reduction motor 2. The eccentric rotating member 302 is connected to the output end of the reduction motor 2. One end of the swing ring 303 is rotatably connected to the mounting stand 301. The other end of the swing ring 303 is connected to the eccentric rotating member 302. The carrying tray 4 is arranged at the top of the swing ring 303. In the present invention, the eccentric rotating member 302 is sleeved on the output end of the reduction motor 2. When the reduction motor 2 is driven to rotate, the reduction motor 2 drives the eccentric rotating member 302 to rotate. The eccentric rotating member 302 causes the swing ring 303 to generate a rotating and swinging motion state. The swing ring 303 drives the carrying tray 4 at the top to generate a shaking motion, so that the raw materials in the vacuum mixing tank 5 are evenly mixed, effectively avoiding or reducing the bubbles generated by the stirring in the traditional mixing equipment due to excessive shear force and uneven mixing during the stirring process.

[0061] The eccentric rotating member 302 includes a main sleeve shaft body 3021, a center sleeve hole 3022, an eccentric tilting block 3023 and a rotating shaft 3024. The center sleeve hole 3022 is opened on the main sleeve shaft body 3021. The main sleeve shaft body 3021 is sleeved on the output end of the reduction motor 2 through the center sleeve hole 3022. The eccentric tilting block 3023 is connected to the outer wall of the main sleeve shaft body 3021 in an inclined state. One end of the rotating shaft 3024 is connected to the end of the eccentric tilting block 3023 away from the main sleeve shaft body 3021, and the other end of the rotating shaft 3024 is connected to the bottom end of the swing ring 303.

[0062] The swing ring 303 includes a bearing column 3031, a straight connecting rod 3032, a curved connecting rod 3033, a rotating block A3034 and a rotating block B3035. The bearing column 3031 is arranged at the end of the rotating shaft 3024 away from the eccentric tilting block 3023, the straight connecting rod 3032 is connected to the outer wall of the bearing column 3031, the rotating block A3034 is rotatably connected to the mounting stand 301, the rotating block B3035 is connected to the rotating block A3034 through the curved connecting rod 3033, and the straight connecting rod 3032 is rotatably connected to the rotating block B3035 at one end away from the bearing column 3031.

[0063] In the present invention, a main sleeve shaft 3021 is fixedly sleeved on the output end of the reduction motor 2. When the reduction motor 2 is driven to rotate, the reduction motor 2 drives the main sleeve shaft 3021 to rotate, and the main sleeve shaft 3021 drives the eccentric tilting block 3023 to rotate. The eccentric tilting block 3023 is connected to the bottom end of the bearing column 3031. Since the bearing column 3031 is connected to the rotating block B3035 through a straight connecting rod 3032, the two sides of the rotating block B3035 are connected to the rotating block A3034 through a curved connecting rod 3033, and the rotating block A3034 is rotatably connected to the mounting stand 301, the bearing column 3031 shakes, the bearing column 3031 drives the top bearing tray 4 to shake, and the bearing tray 4 drives the vacuum mixing tank 5 to shake, so as to achieve a uniform mixing effect, effectively avoid or reduce the generation of bubbles due to excessive shear force, uneven mixing and the like during the mixing process, and ensure that key ingredients such as soy protein, bio-based surfactants, and flame retardants are evenly distributed in the adhesive.

[0064] As another embodiment of the present invention, the vacuum mixing tank 5 includes an outer tank body 501, an inner tank body 502, a tank cover 503, a central axis rod 504 and a ball mixing assembly 505. The outer wall of the outer tank body 501 is connected to the inner wall of the mounting ring plate 401, the inner tank body 502 is arranged inside the outer tank body 501, one end of the tank cover 503 is movably connected to the outer tank body 501 and the top of the inner tank body 502, and the other end of the tank cover 503 is hoisted on the mounting frame 9, the central axis rod 504 is arranged inside the inner tank body 502, and the ball mixing assembly 505 is arranged on the central axis rod 504; a plurality of movable grooves 506 are linearly and vertically opened on the central axis rod 504, and the ball mixing assembly 505 is sleeved on the movable grooves 506. In the present invention, an inner tank body 502 is arranged inside an outer tank body 501, and a movable and detachable tank cover 503 is arranged on the top of the two tank bodies, and is hoisted by a lifting mechanism 8. After the raw materials are put in, the lifting mechanism 8 is used to press and seal, and the internal gas is discharged by a vacuum pump 10, thereby further reducing the possibility of bubble generation, reducing the generation of bubbles and the subsequent degassing steps. This preparation process can shorten the production cycle and improve production efficiency.

[0065] As another embodiment of the present invention, the ball mixing assembly 505 includes a movable leakage disk 5051, a movable hole 5052, a uniform hole 5053 and an elliptical mixing ball 5054. The movable hole 5052 is opened at the center of the movable leakage disk 5051, and a plurality of movable leakage disks 5051 are movably mounted on a plurality of movable grooves 506 through the movable hole 5052. The uniform holes 5053 are opened on the movable leakage disk 5051 at equal intervals, and the elliptical mixing ball 5054 is movably arranged at a position between two movable leakage disks 5051.

[0066] The top of the uniform hole 5053 is hexagonal, the bottom of the uniform hole 5053 is triangular, the top diameter of the uniform hole 5053 is larger than the bottom diameter of the uniform hole 5053, and the major axis diameter of the elliptical mixing ball 5054 is equal to the distance between the top of one active groove 506 and the bottom of another active groove 506.

[0067] See also Fig.12 In the present invention, a central axis rod 504 is arranged inside the inner tank body 502, and a movable leakage plate 5051 is movably mounted on the movable groove 506 of the central axis rod 504, so that when the eccentric swing mechanism 3 drives the tank body to shake and drives the movable leakage plate 5051 to tilt, a plurality of elliptical mixing balls 5054 on the movable leakage plate 5051 roll, so that the raw materials are uniformly distributed on the left and right sides. When the long axis of the elliptical mixing ball 5054 rolls vertically, the movable leakage plate 5051 is pushed to move on the movable groove 506 of the central axis rod 504, so that the inside of the tank body is evenly mixed from top to bottom, which not only improves the stability and efficiency of the preparation process, but also significantly improves the environmental protection performance, flame retardant performance, bonding performance and weather resistance of the adhesive.

[0068] like Fig.11 As shown, the uniform hole 5053 in the present invention has a hexagonal top and a triangular bottom. This special hole makes the material sink faster than it floats, which is beneficial to improving the circulation efficiency and preventing the phenomenon of solidification and blockage caused by too slow flow rate.

[0069] Embodiment 2: This embodiment provides a method for preparing an environmentally friendly flame retardant adhesive for a composite board, comprising the following steps:

[0070] S1, pretreatment and material preparation;

[0071] The mounting frame 9 is driven to rise by the stroke of the lifting mechanism 8, and the mounting frame 9 drives the can cover 503 hoisted thereon to rise, deionized water is added into the inner can body 502, and then the soy protein isolate SPI is added into the deionized water, and then the can cover 503 is driven to move by the lifting mechanism 8 to make it pressed and sealed, and the internal gas is discharged by the vacuum pump 10, and the reduction motor 2 is driven to rotate, and the reduction motor 2 drives the main sleeve shaft body 3021 to rotate, and the main sleeve shaft body 3021 drives the eccentric tilting block 3023 to rotate, and the eccentric tilting block 3023 is driven to rotate. The central tilt block 3023 is connected to the bottom of the bearing column 3031. Since the bearing column 3031 is connected to the rotating block B3035 through the straight connecting rod 3032, the two sides of the rotating block B3035 are connected to the rotating block A3034 through the curved connecting rod 3033, and the rotating block A3034 is rotatably connected to the mounting stand 301, the bearing column 3031 shakes, the bearing column 3031 drives the top bearing tray 4 to shake, and the bearing tray 4 drives the vacuum mixing tank 5 to shake, and the SPI solution is mixed;

[0072] S2, surfactant modification;

[0073] Add the bio-based surfactant (SDS) to the SPI solution mixed in step S1, and continue to shake. The eccentric swing mechanism 3 drives the tank to shake and drive the movable leaking plate 5051 to tilt. The multiple elliptical mixing balls 5054 on the movable leaking plate 5051 roll, so that the raw materials are uniformly distributed on the left and right. When the long axis of the elliptical mixing ball 5054 rolls vertically, the movable leaking plate 5051 is pushed to move on the movable groove 506 of the central axis rod 504, so that the inside of the tank is evenly mixed from top to bottom, so that the SDS is fully wrapped on the surface of the SPI molecules, and it is not easy to generate bubbles, thereby improving its dispersibility and wettability.

[0074] S3, flame retardant addition;

[0075] Add melamine phosphate (TMP) to the above solution and continue the above shaking operation to make the flame retardant evenly dispersed in the system;

[0076] S4, reinforcing agent and filler are mixed;

[0077] Epoxidized soybean oil and nano-alumina powder are gradually added to the solution, and the above-mentioned shaking operation is repeated to ensure that the components are fully mixed to obtain an environmentally friendly flame-retardant adhesive for composite panels.

[0078] Embodiment 3: An environmentally friendly flame-retardant adhesive for composite panels, which is prepared by a method for preparing an environmentally friendly flame-retardant adhesive for composite panels, and whose raw materials include soy protein isolate (SPI), melamine phosphate (TMP), a bio-based surfactant (such as sodium dodecyl sulfate, SDS), epoxidized soybean oil, nano-alumina and deionized water;

[0079] Soy protein isolate (SPI): 60% - as the main base material of adhesive, providing excellent adhesion and biodegradability;

[0080] Melamine phosphate (TMP): 15% - used as a flame retardant to improve the flame retardant properties of the adhesive;

[0081] Bio-based surfactant (sodium dodecyl sulfate, SDS): 5% - used to improve the dispersion of soy protein and the wetting of adhesives;

[0082] Epoxidized soybean oil: 10% - enhances the flexibility and water resistance of the adhesive;

[0083] Nano-alumina: 5% - as an inorganic filler to further improve flame retardancy and mechanical strength;

[0084] Deionized water: appropriate amount - adjust the viscosity of the system and ensure that all components are evenly mixed.

[0085] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A device for preparing an environmentally friendly flame-retardant adhesive for a composite sheet, characterized in that: The invention comprises a base ring (1), wherein a reduction motor (2) is arranged inside the base ring (1), an eccentric swing mechanism (3) is arranged inside the base ring (1) and located directly above the output end of the reduction motor (2), a carrying tray (4) is arranged at the top of the eccentric swing mechanism (3), a vacuum mixing tank (5) is arranged on the carrying tray (4), a heating mechanism (6) is symmetrically arranged at the bottom end of the vacuum mixing tank (5), a carrying frame (7) is arranged on the back of the base ring (1), a lifting mechanism (8) is arranged on the carrying frame (7), a mounting frame (9) is arranged at the output end of the lifting mechanism (8), a vacuum pump (10) is arranged at the top of the mounting frame (9) located directly above the vacuum mixing tank (5), and the input end of the vacuum pump (10) is connected to the top of the vacuum mixing tank (5) through an exhaust pipe (11); A mounting ring plate (401) is symmetrically provided on the carrying tray (4), the mounting ring plate (401) is adapted to the vacuum mixing tank (5), the outer wall of the vacuum mixing tank (5) is connected to the inner wall of the mounting ring plate (401), and a gap is left between the bottom end of the vacuum mixing tank (5) and the carrying tray (4); The vacuum mixing tank (5) comprises an outer tank body (501), an inner tank body (502), a tank cover (503), a central axis rod (504) and a ball mixing assembly (505); the outer wall of the outer tank body (501) is connected to the inner wall of the mounting ring plate (401); the inner tank body (502) is arranged inside the outer tank body (501); one end of the tank cover (503) is movably connected to the outer tank body (501) and the top of the inner tank body (502); the other end of the tank cover (503) is hoisted on the mounting frame (9); the central axis rod (504) is arranged inside the inner tank body (502); and the ball mixing assembly (505) is arranged on the central axis rod (504); The central axis rod (504) is provided with a plurality of movable grooves (506) in a linear vertical shape, and the ball mixing assembly (505) is sleeved on the movable grooves (506); The ball mixing assembly (505) comprises a movable leakage disc (5051), a movable hole (5052), a uniform hole (5053) and an elliptical mixing ball (5054); the movable hole (5052) is opened at the center of the movable leakage disc (5051); a plurality of movable leakage discs (5051) are movably sleeved on a plurality of movable grooves (506) through the movable hole (5052); the uniform holes (5053) are opened on the movable leakage disc (5051) at equal intervals; and the elliptical mixing ball (5054) is movably arranged at a position between two movable leakage discs (5051); The eccentric swing mechanism (3) comprises a mounting frame (301), an eccentric rotating member (302) and a swing ring member (303); the mounting frame (301) is symmetrically arranged inside the base ring (1) at a position on the side of the reduction motor (2); the eccentric rotating member (302) is connected to the output end of the reduction motor (2); one end of the swing ring member (303) is rotatably connected to the mounting frame (301); the other end of the swing ring member (303) is connected to the eccentric rotating member (302); and the carrying tray (4) is arranged at the top of the swing ring member (303); The eccentric rotating member (302) comprises a main sleeve shaft body (3021), a central sleeve hole (3022), an eccentric tilting block (3023) and a rotating shaft (3024); the central sleeve hole (3022) is formed on the main sleeve shaft body (3021); the main sleeve shaft body (3021) is sleeved on the output end of the reduction motor (2) through the central sleeve hole (3022); the eccentric tilting block (3023) is connected to the outer wall of the main sleeve shaft body (3021) in an inclined shape; one end of the rotating shaft (3024) is connected to the end of the eccentric tilting block (3023) away from the main sleeve shaft body (3021); and the other end of the rotating shaft (3024) is connected to the bottom end of the swing ring member (303); The swing ring (303) comprises a bearing column (3031), a straight connecting rod (3032), a curved connecting rod (3033), a rotating block A (3034) and a rotating block B (3035); the bearing column (3031) is arranged at one end of the rotating shaft (3024) away from the eccentric tilting block (3023); the straight connecting rod (3032) is connected to the outer wall of the bearing column (3031); the rotating block A (3034) is rotatably connected to the mounting stand (301); the rotating block B (3035) is connected to the rotating block A (3034) through the curved connecting rod (3033); and the end of the straight connecting rod (3032) away from the bearing column (3031) is rotatably connected to the rotating block B (3035).

2. The preparation device of the environmentally friendly flame-retardant adhesive for composite board according to claim 1, characterized in that: The top of the uniform hole (5053) is hexagonal in shape, the bottom of the uniform hole (5053) is triangular in shape, the diameter of the top of the uniform hole (5053) is greater than the diameter of the bottom of the uniform hole (5053), and the major axis diameter of the elliptical mixing ball (5054) is equal to the distance between the top of one of the active grooves (506) and the bottom of another active groove (506).

3. A method for using the device for preparing the environmentally friendly flame-retardant adhesive for composite panels according to claim 2, characterized in that: The following steps are involved: S1, pretreatment and material preparation; The mounting frame (9) is driven to rise by the stroke of the lifting mechanism (8), and the mounting frame (9) drives the can cover (503) hoisted thereon to rise, deionized water is added to the inner can body (502), and then soy protein isolate is added to the deionized water, and then the can cover (503) is driven to move by the lifting mechanism (8) to achieve a press-fit seal, and the internal gas is discharged by the vacuum pump (10), and the reduction motor (2) is driven to rotate, and the reduction motor (2) drives the main sleeve shaft (3021) to rotate, and the main sleeve shaft (3021) drives the eccentric tilting block (3023) to rotate, and the eccentric tilting block (3023) is driven to rotate. The inclined block (3023) is connected to the bottom end of the bearing column (3031). Since the bearing column (3031) is connected to the rotating block B (3035) through a straight connecting rod (3032), both sides of the rotating block B (3035) are connected to the rotating block A (3034) through a curved connecting rod (3033), and the rotating block A (3034) is rotatably connected to the mounting stand (301), the bearing column (3031) shakes, the bearing column (3031) drives the bearing tray (4) at the top to shake, and the bearing tray (4) drives the vacuum mixing tank (5) to shake, and the mixture is mixed to form a solution; S2, surfactant modification; Add the bio-based surfactant to the solution mixed in step S1, and continue to shake. The eccentric swing mechanism (3) drives the tank to shake and drives the movable drain plate (5051) to tilt. The plurality of elliptical mixing balls (5054) on the movable drain plate (5051) roll, so that the raw materials are uniformly mixed on the left and right. When the long axis of the elliptical mixing ball (5054) rolls vertically, the movable drain plate (5051) is pushed to move on the movable groove (506) of the central axis rod (504), so that the inside of the tank is evenly mixed from top to bottom, so that the bio-based surfactant is fully wrapped on the molecular surface, and it is not easy to generate bubbles, thereby improving its dispersibility and wettability. S3, flame retardant addition; Add melamine phosphate to the above solution and continue the above shaking operation to make the flame retardant evenly dispersed in the system; S4, reinforcing agent and filler are mixed; Epoxidized soybean oil and nano-alumina powder are gradually added to the solution, and the above-mentioned shaking operation is repeated to ensure that the components are fully mixed to obtain an environmentally friendly flame-retardant adhesive for composite panels.

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