Method and system for preparing fibroin-based water absorbing material based on grafted vinyl monomer

Abstract

The invention relates to the technical field of high polymer materials, in particular to a method and system for preparing a fibroin-based water absorbing material based on a grafted vinyl monomer, and the system comprises a frame body, a kettle body, a stirring assembly and a synergistic mechanism, the synergistic mechanism comprises a guide assembly, a mounting plate, a double-shaft motor, a transmission assembly, a cam, a stress frame, a sliding frame, a supporting assembly and two rollers, the frame body is provided with two through holes, the sliding frame is in sliding connection with the two through holes, the supporting assembly is fixedly connected with the sliding frame, and the two rollers are arranged on the supporting assembly and make contact with the frame body. The kettle body is arranged on the supporting assembly, the kettle body is connected with the frame body through the guide assembly, and the mounting plate is arranged on the frame body, so that the technical problem that a reaction kettle used in the prior art is poor in raw material mixing effect and further affects the production efficiency of a fibroin-based material is solved.

Description

Technical Field

[0001] The invention relates to the technical field of polymer materials, and in particular to a method and system for preparing a silk fibroin-based water-absorbing material based on grafted vinyl monomers. Background Art

[0002] Silk-based water-absorbent material is a new type of polymer material prepared based on silk fibroin with excellent water absorption and water retention properties. Silk-based water-absorbent material has broad application prospects in many fields due to its excellent performance characteristics.

[0003] However, traditional silk-based materials have certain limitations in water absorption performance and are difficult to meet the needs of certain specific fields. By grafting vinyl monomers, the hydrophilicity and water absorption properties of silk-based materials can be effectively improved while maintaining their excellent biodegradability and environmental protection. A reactor is required when preparing silk-based water-absorbent materials based on grafted vinyl monomers.

[0004] However, the reaction kettle used in the prior art has a poor mixing effect on the raw materials, thereby affecting the production efficiency of the silk-based material. Summary of the invention

[0005] The purpose of the present invention is to provide a method and system for preparing silk-based water-absorbing materials based on grafted vinyl monomers, aiming to solve the technical problem that the reactor used in the prior art has a poor mixing effect on raw materials, thereby affecting the production efficiency of silk-based materials.

[0006] To achieve the above-mentioned purpose, the present invention adopts a system for preparing silk-based water-absorbing materials based on grafted vinyl monomers, comprising a frame, a kettle, a stirring assembly and a synergistic mechanism, wherein the stirring assembly is arranged on the frame, and the synergistic mechanism comprises a guide assembly, a mounting plate, a dual-axis motor, a transmission assembly, a cam, a force frame, a sliding frame, a support assembly and two rollers, the frame has two through holes, the sliding frames are slidably connected to the two through holes, the support assembly is fixedly connected to the sliding frame, the two rollers are arranged on the support assembly and are in contact with the frame, the kettle is arranged on the support assembly, the kettle is connected to the frame through the guide assembly, the mounting plate is arranged on the frame, the dual-axis motor is mounted on the mounting plate, one of the output ends of the dual-axis motor drives the cam to rotate through the transmission assembly, the force frame is fixedly connected to the sliding frame, the force frame has a force groove, and the cam is adapted to the force groove.

[0007] Wherein, the guide assembly comprises a support rod and a connecting rod, the support rod is arranged on the frame body, one end of the connecting rod is slidably connected to the support rod, and the other end of the connecting rod is fixedly connected to the kettle body.

[0008] Wherein, the transmission assembly includes a driving gear, a driven gear, a support plate and a round rod, the support plate is fixedly connected to the frame, the round rod is rotatably connected to the support plate, the driving gear is fixedly connected to the output end corresponding to the dual-axis motor, the driven gear is fixedly connected to the round rod, the driven gear is meshed with the driving gear, and the cam is fixedly connected to the round rod.

[0009] Wherein, the support assembly includes a bracket and a shaft body, the bracket is fixedly connected to the sliding frame, one end of the shaft body is fixedly connected to the kettle body, and the other end of the shaft body is rotatably connected to the bracket.

[0010] Among them, the system for preparing silk-based water-absorbing materials based on grafted vinyl monomers also includes a disc, a supporting rod and a swing block, the support rod is rotatably connected to the frame, the swing rod is fixedly connected to the support rod, the swing rod has a force hole, the disc is fixedly connected to the output end corresponding to the dual-axis motor, one end of the supporting rod is fixedly connected to the disc, and the other end of the supporting rod is placed in the force hole.

[0011] Among them, the system for preparing silk-based water-absorbing materials based on grafted vinyl monomers also includes a stabilizing rod, the disc has a stabilizing groove, one end of the stabilizing rod is fixedly connected to the mounting plate, and the other end of the stabilizing rod is placed in the stabilizing groove.

[0012] The present invention also provides a preparation method, using the system for preparing a silk-based water-absorbing material based on grafted vinyl monomers as described above,

[0013] The steps include:

[0014] Adding a solvent into the kettle, and selecting high-quality silk fibroin powder to add into the kettle, stirring the silk fibroin powder and the solvent by the stirring component so that the silk fibroin powder is evenly dissolved and then filtered, and in this process, the dissolution reaction efficiency is improved by the synergistic mechanism;

[0015] Grafting vinyl-containing carboxylic acid groups on the surface of silk fibroin to provide active sites for subsequent copolymerization reactions;

[0016] The graft copolymerization reaction of silk fibroin and vinyl monomer is realized by using a biological enzyme catalysis system such as horseradish peroxidase, and this process uses the system for preparing silk fibroin-based water-absorbing materials based on grafted vinyl monomers to react;

[0017] The graft copolymerization product is subjected to molding treatment, such as injection molding or calendering, to form a silk-based water-absorbing material of a desired shape.

[0018] Among them, after the molding process is completed, the material should be dried or heat treated.

[0019] The present invention provides a method and system for preparing a silk-based water-absorbing material based on a grafted vinyl monomer. When used, a solvent is added into the kettle, and high-quality silk fibroin powder is selected and added into the kettle. The silk fibroin powder and the solvent are stirred by the stirring component so that the silk fibroin powder is evenly dissolved and then filtered. At the same time, the dissolution reaction efficiency can be improved by the synergistic mechanism. The specific method is as follows: the dual-axis motor is started, and one of the output ends of the dual-axis motor drives the cam to reciprocate in the force groove through the transmission component. The cam reciprocates in the force groove and drives the sliding frame to reciprocate in the two through holes. The sliding frame drives the supporting component to reciprocate, and then drives the two rollers in the The support assembly drives the kettle to reciprocate, causing the material in the kettle to shake, and cooperates with the stirring assembly to improve the dissolution reaction efficiency, and then grafts carboxylic acid groups containing vinyl groups on the surface of the silk fibroin to provide active sites for subsequent copolymerization reactions, and then realizes the graft copolymerization of silk fibroin and vinyl monomers through biological enzyme catalysis systems such as horseradish peroxidase. This process uses the system for preparing silk fibroin-based water-absorbing materials based on grafted vinyl monomers to react, and finally, the product after graft copolymerization is molded, such as injection molding or calendering, to form a silk fibroin-based water-absorbing material of a desired shape. In this way, the technical problem that the reactor used in the prior art has a poor mixing effect on raw materials, thereby affecting the production efficiency of silk fibroin-based materials is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.

[0022] Figure 2 The present invention Figure 1 A magnified view of the local structure at A.

[0023] Figure 3 It is a schematic structural diagram of the second embodiment of the present invention.

[0024] Figure 4 It is a front view of the second embodiment of the present invention.

[0025] Figure 5 The present invention Figure 4 BB line structural cross-sectional view.

[0026] Figure 6 It is a schematic structural diagram of the third embodiment of the present invention.

[0027] 101-frame, 102-kettle, 103-stirring assembly, 104-mounting plate, 105-dual-axis motor, 106-cam, 107-force frame, 108-sliding frame, 109-roller, 110-support rod, 111-connecting rod, 112-driving gear, 113-driven gear, 114-support plate, 115-round rod, 116-bracket, 117-axis, 118-through hole, 119-force groove, 201-disc, 202-holding rod, 203-swing block, 204-stabilizing rod, 205-force hole, 206-stabilizing groove, 301-square frame, 302-guide block, 303-bolt, 304-force member. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0029] The first embodiment of the present application is:

[0030] See also Figure 1 and Figure 2 ,in Figure 1 is a schematic structural diagram of a first embodiment of the present invention, Figure 2 The present invention Figure 1 A magnified view of the local structure at A.

[0031] The present invention provides a system for preparing a silk-based water-absorbing material based on a grafted vinyl monomer, comprising a frame 101, a kettle 102, a stirring assembly 103 and a synergistic mechanism, wherein the synergistic mechanism comprises a guide assembly, a mounting plate 104, a dual-axis motor 105, a transmission assembly, a cam 106, a force frame 107, a sliding frame 108, a support assembly and two rollers 109, the guide assembly comprises a support rod 110 and a connecting rod 111, the transmission assembly comprises a driving gear 112, a driven gear 113, a support plate 114 and a round rod 115, and the support assembly comprises a bracket 116 and a shaft 117. The above scheme solves the technical problem that the reaction kettle used in the prior art has a poor mixing effect on raw materials, thereby affecting the production efficiency of the silk-based material.

[0032] According to this specific embodiment, the stirring component 103 is set on the frame 101, the solvent is added into the kettle 102, and high-quality silk fibroin powder is selected and added into the kettle 102. The silk fibroin powder and the solvent are stirred by the stirring component 103 so that the silk fibroin powder is evenly dissolved and then filtered.

[0033] The frame 101 has two through holes 118, the sliding frames 108 are slidably connected to the two through holes 118, the support assembly is fixedly connected to the sliding frame 108, the two rollers 109 are arranged on the support assembly and are in contact with the frame 101, the kettle 102 is arranged on the support assembly, the kettle 102 is connected to the frame 101 through the guide assembly, the mounting plate 104 is arranged on the frame 101, the dual-axis motor 105 is mounted on the mounting plate 104, and one of the output ends of the dual-axis motor 105 is connected to the frame 101 through the guide assembly. The transmission assembly drives the cam 106 to rotate, the force frame 107 is fixedly connected to the sliding frame 108, the force frame 107 has a force groove 119, and the cam 106 is adapted to the force groove 119. When used, the solvent is added into the kettle body 102, and high-quality silk fibroin powder is selected to be added into the kettle body 102. The silk fibroin powder and the solvent are stirred by the stirring assembly 103 so that the silk fibroin powder is evenly dissolved and then filtered. At the same time, the dissolution reaction efficiency can be improved by the synergistic mechanism. The specific method is as follows: start the dual-axis motor 10 5. One of the output ends of the dual-axis motor 105 drives the cam 106 to reciprocate in the force groove 119 through the transmission assembly. The cam 106 reciprocates in the force groove 119 and drives the sliding frame 108 to reciprocate in the two through holes 118. The sliding frame 108 drives the support assembly to reciprocate, and then drives the two rollers 109 to roll on the frame 101. At this time, the support assembly drives the kettle 102 to reciprocate, so that the material in the kettle 102 shakes, and cooperates with the stirring assembly 103 to improve the dissolution reaction. Efficiency, then vinyl-containing carboxylic acid groups such as the like are grafted onto the surface of the silk fibroin to provide active sites for subsequent copolymerization reactions, and then the graft copolymerization reaction of the silk fibroin and the vinyl monomer is achieved through a bio-enzyme catalysis system such as horseradish peroxidase. This process uses the system for preparing silk-based water-absorbing materials based on grafted vinyl monomers to react, and finally, the product after the graft copolymerization is subjected to a molding treatment, such as injection molding or calendering, to form a silk-based water-absorbing material of a desired shape. In this way, the technical problem that the reactor used in the prior art has a poor mixing effect on the raw materials, thereby affecting the production efficiency of the silk-based materials is solved.

[0034] Secondly, the support rod 110 is set on the frame 101, one end of the connecting rod 111 is slidably connected to the support rod 110, and the other end of the connecting rod 111 is fixedly connected to the kettle body 102. When in use, when the kettle body 102 moves, it drives the connecting rod 111 to slide in the support rod 110, thereby improving the stability of the kettle body 102.

[0035] At the same time, the support plate 114 is fixedly connected to the frame 101, the round rod 115 is rotatably connected to the support plate 114, the driving gear 112 is fixedly connected to the output end corresponding to the dual-axis motor 105, the driven gear 113 is fixedly connected to the round rod 115, the driven gear 113 is meshed with the driving gear 112, the cam 106 is fixedly connected to the round rod 115, the output end corresponding to the dual-axis motor 105 drives the driving gear 112 to rotate, the driving gear 112 drives the driven gear 113 to rotate, the driven gear 113 drives the round rod 115 to rotate and then drives the cam 106 to rotate.

[0036] In addition, the bracket 116 is fixedly connected to the sliding frame 108, one end of the shaft 117 is fixedly connected to the kettle body 102, and the other end of the shaft 117 is rotatably connected to the bracket 116. When the sliding frame 108 moves, it drives the bracket 116 to move, and the bracket 116 drives the shaft 117 to move and then drives the kettle body 102 to move.

[0037] A system for preparing a silk-based water-absorbing material based on a grafted vinyl monomer using the present embodiment is used. When in use, a solvent is added into the kettle 102, and high-quality silk fibroin powder is selected and added into the kettle 102. The silk fibroin powder and the solvent are stirred by the stirring component 103 so that the silk fibroin powder is evenly dissolved and then filtered. At the same time, the dissolution reaction efficiency can be improved by the synergistic mechanism. The specific method is as follows: the dual-axis motor 105 is started, and one of the output ends of the dual-axis motor 105 drives the cam 106 to reciprocate in the force groove 119 through the transmission component. The cam 106 reciprocates in the force groove 119 and drives the sliding frame 108 to reciprocate in the two through holes 118 at the same time. The sliding frame 108 drives the supporting component to reciprocate, and then The two rollers 109 are driven to roll on the frame 101. At this time, the support component drives the kettle 102 to reciprocate, so that the material in the kettle 102 is shaken, and the dissolution reaction efficiency is improved in cooperation with the stirring component 103. Subsequently, groups such as carboxylic acids containing vinyl groups are grafted on the surface of the silk fibroin to provide active sites for subsequent copolymerization reactions. After that, the graft copolymerization reaction of the silk fibroin and the vinyl monomer is achieved through a biological enzyme catalysis system such as horseradish peroxidase. This process uses the system for preparing silk-based water-absorbing materials based on grafted vinyl monomers to react. Finally, the product after graft copolymerization is subjected to a molding process, such as injection molding or calendering, to form a silk-based water-absorbing material of a desired shape. In this way, the technical problem that the reactor used in the prior art has a poor mixing effect on the raw materials, thereby affecting the production efficiency of the silk-based materials is solved.

[0038] The second embodiment of the present application is:

[0039] Based on the first embodiment, please refer to Figures 3 to 5 , Figure 3 is a schematic structural diagram of a second embodiment of the present invention, Figure 4 is a front view of a second embodiment of the present invention, Figure 5 The present invention Figure 4 BB line structural cross-sectional view.

[0040] The present invention provides a system for preparing a silk-based water-absorbing material based on grafted vinyl monomers, which also includes a disc 201 , a supporting rod 202 , a swing block 203 and a stabilizing rod 204 .

[0041] According to this specific embodiment, the support rod 110 is rotatably connected to the frame 101, the swing rod is fixedly connected to the support rod 110, the swing rod has a force hole 205, the disc 201 is fixedly connected to the output end corresponding to the dual-axis motor 105, one end of the supporting rod 202 is fixedly connected to the disc 201, and the other end of the supporting rod 202 is placed in the force hole 205. During specific use, the output end corresponding to the dual-axis motor 105 drives the disc 201 to rotate, and the disc 201 drives the supporting rod 202 to slide in the force hole 205. While the supporting rod 202 slides in the force hole 205, it drives the swing block 203 to swing back and forth. The swing block 203 drives the support rod 110 to rotate back and forth, thereby indirectly driving the kettle body 102 to swing, thereby further improving the reaction efficiency.

[0042] Among them, the disc 201 has a stabilizing groove 206, one end of the stabilizing rod 204 is fixedly connected to the mounting plate 104, and the other end of the stabilizing rod 204 is placed in the stabilizing groove 206. When the disc 201 rotates, it drives the stabilizing groove 206 to slide on the outer wall of the stabilizing rod 204, thereby improving the stability of the disc 201.

[0043] A system for preparing silk-based water-absorbing materials based on grafted vinyl monomers using the present embodiment is used. During specific use, the output end corresponding to the dual-axis motor 105 drives the disc 201 to rotate, and the disc 201 drives the supporting rod 202 to slide in the force-bearing hole 205. The supporting rod 202 slides in the force-bearing hole 205 and drives the swing block 203 to swing back and forth. The swing block 203 drives the support rod 110 to rotate back and forth, thereby indirectly driving the kettle body 102 to swing, thereby further improving the reaction efficiency.

[0044] The third embodiment of the present application is:

[0045] Based on the second embodiment, please refer to Figure 6 , Figure 6 It is a schematic structural diagram of the third embodiment of the present invention.

[0046] The present invention provides a system for preparing a silk-based water-absorbing material based on a grafted vinyl monomer, which also includes a square frame 301 , a guide block 302 , two bolts 303 and a force-applying member 304 .

[0047] According to this specific embodiment, the square frame 301 is fixedly connected to the frame 101, the guide block 302 is slidably connected to the square frame 301, and the guide block 302 is fixedly connected to the mounting plate 104, one end of the two bolts 303 are inserted into the square frame 301 and tightened on the guide block 302, when installing the dual-axis motor 105, align the guide block 302 with the square frame 301 and push it to the specified position, insert one end of the two bolts 303 into the square frame 301 and tighten them on the guide block 302, otherwise it is easy to disassemble.

[0048] The force applying member 304 is fixedly connected to the mounting plate 104 , which facilitates the application of force when installing and removing the dual-axis motor 105 .

[0049] When installing the dual-axis motor 105 using a system for preparing a silk-based water-absorbing material based on a grafted vinyl monomer according to the present embodiment, the guide block 302 is aligned with the frame 301 and pushed to a specified position, one end of each of the two bolts 303 is inserted into the frame 301 and tightened on the guide block 302, otherwise it is easy to disassemble.

[0050] The present invention also provides a preparation method, using the system for preparing a silk-based water-absorbing material based on grafted vinyl monomers as described above,

[0051] The steps include:

[0052] Adding solvent into the kettle 102, and selecting high-quality silk fibroin powder to add into the kettle 102, stirring the silk fibroin powder and the solvent by the stirring component 103 so that the silk fibroin powder is evenly dissolved and then filtered, and in this process, the dissolution reaction efficiency is improved by the synergistic mechanism;

[0053] Grafting vinyl-containing carboxylic acid groups on the surface of silk fibroin to provide active sites for subsequent copolymerization reactions;

[0054] The graft copolymerization reaction of silk fibroin and vinyl monomer is realized by using a biological enzyme catalysis system such as horseradish peroxidase, and this process uses the system for preparing silk fibroin-based water-absorbing materials based on grafted vinyl monomers to react;

[0055] The graft copolymerization product is subjected to molding treatment, such as injection molding or calendering, to form a silk-based water-absorbing material of a desired shape.

[0056] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A system for preparing a silk-based water-absorbing material based on grafted vinyl monomers, comprising a frame, a kettle and a stirring assembly, wherein the stirring assembly is arranged on the frame, characterized in that: It also includes efficiency-enhancing institutions; The enhancement mechanism includes a guide assembly, a mounting plate, a dual-axis motor, a transmission assembly, a cam, a force frame, a sliding frame, a support assembly and two rollers. The frame has two through holes, and the sliding frames are slidably connected to the two through holes. The support assembly is fixedly connected to the sliding frame. The two rollers are arranged on the support assembly and are in contact with the frame. The kettle body is arranged on the support assembly, and the kettle body is connected to the frame through the guide assembly. The mounting plate is arranged on the frame, and the dual-axis motor is mounted on the mounting plate. One of the output ends of the dual-axis motor drives the cam to rotate through the transmission assembly. The force frame is fixedly connected to the sliding frame, and the force frame has a force groove, and the cam is adapted to the force groove.

2. The system for preparing a silk-based water-absorbing material based on grafted vinyl monomers according to claim 1, characterized in that: The guide assembly comprises a support rod and a connecting rod, wherein the support rod is arranged on the frame body, one end of the connecting rod is slidably connected to the support rod, and the other end of the connecting rod is fixedly connected to the kettle body.

3. The system for preparing a silk-based water-absorbing material based on grafted vinyl monomers according to claim 2, characterized in that: The transmission assembly includes a driving gear, a driven gear, a support plate and a round rod, the support plate is fixedly connected to the frame, the round rod is rotatably connected to the support plate, the driving gear is fixedly connected to the output end corresponding to the dual-axis motor, the driven gear is fixedly connected to the round rod, the driven gear is meshed with the driving gear, and the cam is fixedly connected to the round rod.

4. The system for preparing a silk-based water-absorbing material based on grafted vinyl monomers according to claim 3, characterized in that: The support assembly comprises a bracket and a shaft body, wherein the bracket is fixedly connected to the sliding frame, one end of the shaft body is fixedly connected to the kettle body, and the other end of the shaft body is rotatably connected to the bracket.

5. The system for preparing a silk-based water-absorbing material based on grafted vinyl monomers according to claim 4, characterized in that: The system for preparing silk-based water-absorbing materials based on grafted vinyl monomers also includes a disc, a supporting rod and a swing block, the support rod is rotatably connected to the frame, the swing rod is fixedly connected to the support rod, the swing rod has a force-bearing hole, the disc is fixedly connected to the output end corresponding to the dual-axis motor, one end of the supporting rod is fixedly connected to the disc, and the other end of the supporting rod is placed in the force-bearing hole.

6. The system for preparing a silk-based water-absorbing material based on grafted vinyl monomers according to claim 5, characterized in that: The system for preparing silk-based water-absorbing materials based on grafted vinyl monomers also includes a stabilizing rod, the disc has a stabilizing groove, one end of the stabilizing rod is fixedly connected to the mounting plate, and the other end of the stabilizing rod is placed in the stabilizing groove.

7. A preparation method, using the system for preparing silk-based water-absorbing materials based on grafted vinyl monomers as claimed in claim 6, characterized in that: The steps include: Adding a solvent into the kettle, and selecting high-quality silk fibroin powder to add into the kettle, stirring the silk fibroin powder and the solvent by the stirring component so that the silk fibroin powder is evenly dissolved and then filtered, and in this process, the dissolution reaction efficiency is improved by the synergistic mechanism; Grafting vinyl-containing carboxylic acid groups on the surface of silk fibroin to provide active sites for subsequent copolymerization reactions; The graft copolymerization reaction of silk fibroin and vinyl monomer is realized by using a biological enzyme catalysis system such as horseradish peroxidase, and this process uses the system for preparing silk fibroin-based water-absorbing materials based on grafted vinyl monomers to react; The graft copolymerization product is subjected to molding treatment, such as injection molding or calendering, to form a silk-based water-absorbing material of a desired shape.

8. The method for preparing a silk-based water-absorbing material based on grafted vinyl monomers according to claim 7, characterized in that: After the forming process is completed, the material should be dried or heat treated.

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