CN115490833A - Solvent-free epoxy curing agent and preparation method thereof - Google Patents
Solvent-free epoxy curing agent and preparation method thereof Download PDFInfo
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- CN115490833A CN115490833A CN202211304740.5A CN202211304740A CN115490833A CN 115490833 A CN115490833 A CN 115490833A CN 202211304740 A CN202211304740 A CN 202211304740A CN 115490833 A CN115490833 A CN 115490833A
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 35
- 239000004593 Epoxy Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000012634 fragment Substances 0.000 claims abstract description 50
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000012188 paraffin wax Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 239000004203 carnauba wax Substances 0.000 claims abstract description 21
- 239000003208 petroleum Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 150000001412 amines Chemical class 0.000 claims abstract description 8
- 239000003093 cationic surfactant Substances 0.000 claims abstract description 8
- 229920005610 lignin Polymers 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 235000013869 carnauba wax Nutrition 0.000 claims abstract 2
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 244000309464 bull Species 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 229920001732 Lignosulfonate Polymers 0.000 claims description 6
- 239000004115 Sodium Silicate Substances 0.000 claims description 6
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 6
- 229920000768 polyamine Polymers 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- 238000004090 dissolution Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000012745 toughening agent Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004848 polyfunctional curative Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 235000019482 Palm oil Nutrition 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000002540 palm oil Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000005662 Paraffin oil Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5033—Amines aromatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/10—Dissolving using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
- B01F31/441—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
- B01F31/443—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a superposed additional movement other than oscillation, vibration or shaking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/714—Feed mechanisms for feeding predetermined amounts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/56—Amines together with other curing agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
- C08G59/686—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing nitrogen
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention belongs to the technical field of epoxy curing agent preparation, and particularly relates to a solvent-free epoxy curing agent and a preparation method thereof, wherein the preparation method of the solvent-free epoxy curing agent comprises the following steps: the method comprises the following steps: sequentially adding the paraffin fragments and the carnauba wax fragments into petroleum ether by using an auxiliary device, and uniformly stirring to obtain a pretreatment solution; step two: uniformly mixing the pretreatment liquid with a cationic surfactant, and adding a fatty amine accelerator into the mixture to obtain a prefabricated product; step three: dispersing and heating the prefabricated product to obtain a finished product accelerator; step four: uniformly dispersing a finished product accelerator and nano lignin powder to obtain a prefabricated product I, wherein the solvent-free epoxy curing agent prepared by the preparation method of the solvent-free epoxy curing agent comprises the following raw materials in parts by weight: 10-12 parts of paraffin, 15-18 parts of palm wax, 5-8 parts of cationic surfactant and 20-25 parts of fatty amine accelerator, and can continuously and efficiently prepare pretreatment solution consisting of paraffin and palm wax.
Description
Technical Field
The invention belongs to the technical field of epoxy curing agent preparation, and particularly relates to a solvent-free epoxy curing agent and a preparation method thereof.
Background
In the process of producing the epoxy resin, a curing agent is added to improve the heat resistance and chemical resistance of the epoxy resin, so that the curing agent is a very common preparation component in the process of processing and producing the epoxy resin, and the curing agent is mainly divided into a solvent type and a solvent-free type;
the solvent-based curing agent has various defects of large smell, easy volatilization, easy pollution to the surrounding environment and the like, so the current development and research direction is mostly carried out on the solvent-free curing agent, in the process of preparing the solvent-free curing agent, various chemical components are required to be used, including but not limited to chemical component additives such as an accelerator, a flexibilizer and the like.
Disclosure of Invention
In view of this, the technical problem to be solved by the present invention is to provide a device capable of continuously and efficiently preparing a pretreatment solution composed of paraffin and palm wax, and to improve the preparation efficiency of a curing agent.
A preparation method of a solvent-free epoxy curing agent comprises the following steps:
the method comprises the following steps: sequentially adding the paraffin fragments and the palm wax fragments into petroleum ether by using an auxiliary device, and uniformly stirring to obtain a pretreatment solution;
step two: uniformly mixing the pretreatment solution with a cationic surfactant, and adding a fatty amine accelerator into the mixture to obtain a prefabricated product;
step three: dispersing and heating the prefabricated product to obtain a finished product accelerator;
step four: uniformly dispersing the finished product accelerant and the nano lignin powder to obtain a prefabricated object I;
step five: uniformly mixing lignosulfonate, sodium silicate and water, adding a toughening agent, and heating and volatilizing to obtain a prefabricated object II;
step six: uniformly mixing benzyl polyamine and polyamine-epoxy adduct, and adding the prefabricated object I and the prefabricated object I to obtain a finished product curing agent;
auxiliary device includes the connecting rod, is connected with on the connecting rod and dissolves case and T template, and sliding connection has the slide on the T template, and the rigid coupling has the splendid attire groove on the slide, and splendid attire groove lower extreme is equipped with the opening, corresponds the position on the slide and is equipped with the notch, and the rigid coupling has spring II between slide and the T template, is equipped with a plurality of screw holes on the splendid attire groove, dissolves the case lower extreme and is equipped with the heating source.
The T-shaped plate is connected to the connecting rod in a sliding mode.
The device still includes the rigid coupling at the connecting rod and dissolves the spring III between the case, and sliding connection has the electromagnetism piece on the connecting rod, and the electromagnetism piece can adsorb dissolving the case, dissolves and rotates on the case and is connected with the bull stick, and the rigid coupling has the cylinder pole on the bull stick, and sliding connection has L type pole on the slide, and the rigid coupling has the electromagnetic plate on the L type pole, and the electromagnetic plate can adsorb the slide.
The device also comprises a gathering part fixedly connected to the lower end of the sliding plate, the sliding plate is connected with an auxiliary plate in a sliding mode, and the auxiliary plate is fixedly connected with a baffle.
The solvent-free epoxy curing agent prepared by the preparation method of the solvent-free epoxy curing agent can be continuously and efficiently prepared, and comprises the following raw materials in parts by weight: 10-12 parts of paraffin, 15-18 parts of palm wax, 5-8 parts of cationic surfactant, 20-25 parts of fatty amine accelerator, 30-35 parts of nano lignin powder, 10-15 parts of lignosulfonate, 5-8 parts of sodium silicate, 10-15 parts of flexibilizer, 55-85 parts of benzyl polyamine and 55-85 parts of polyamine-epoxy adduct.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a flow diagram of a process for preparing a solventless epoxy hardener;
FIGS. 2 and 3 are schematic views of the construction of the connecting rod;
FIG. 4 is a schematic view of the drive plate;
FIG. 5 is a schematic structural view of a T-shaped plate;
FIG. 6 is a schematic view of the structure of the slide plate;
FIG. 7 is a schematic view of the structure of the dissolution tank;
FIG. 8 is a schematic structural view of an L-shaped bar;
fig. 9 and 10 are schematic views of the overall structure of the auxiliary device.
Detailed Description
A preparation method of a solvent-free epoxy curing agent comprises the following steps:
the method comprises the following steps: sequentially adding the paraffin fragments and the palm wax fragments into petroleum ether by using an auxiliary device, and uniformly stirring to obtain a pretreatment solution;
step two: uniformly mixing the pretreatment liquid with a cationic surfactant, and adding a fatty amine accelerator into the mixture to obtain a prefabricated product;
step three: dispersing and heating the prefabricated product to obtain a finished product accelerator;
step four: uniformly dispersing the finished product accelerant and the nano lignin powder to obtain a prefabricated object I;
step five: uniformly mixing lignosulfonate, sodium silicate and water, adding a toughening agent, and heating and volatilizing to obtain a prefabricated object II;
step six: uniformly mixing benzyl polyamine and polyamine-epoxy adduct, and adding the prefabricated object I and the prefabricated object I to obtain a finished product curing agent;
referring to FIGS. 3, 5, and 7, schematic diagrams of examples of facilitating continuous and efficient preparation of a pretreatment solution according to the present invention are shown.
The auxiliary device comprises a connecting rod 101, a dissolving tank 103 and a T-shaped plate 201 are connected to the connecting rod 101, a sliding plate 601 is connected to the T-shaped plate 201 in a sliding mode, a containing groove 602 is fixedly connected to the sliding plate 601, an opening is formed in the lower end of the containing groove 602, a notch is formed in the corresponding position of the sliding plate 601, a spring II 202 is fixedly connected between the sliding plate 601 and the T-shaped plate 201, and a plurality of threaded holes are formed in the containing groove 602.
The preparation personnel uniformly pour a proper amount of petroleum ether into the dissolving tank 103, then pour a proper amount of paraffin fragments into the sliding plate 601 according to a preset proportion, then operate the opening at the lower end of the containing tank 602 to be opened periodically, further enable the paraffin fragments in the sliding plate 601 to drop into the dissolving tank 103 intermittently, thereby enable the paraffin fragments to be contacted with the petroleum ether, enable the heat source at the bottom of the dissolving tank 103 to be started, enable the paraffin fragments to be dissolved in the petroleum ether, thereby carry out preparation work of the pretreatment liquid, connect a containing container with openings at the upper end and the lower end to the containing tank 602 in a mode of screwing bolts into a plurality of threaded holes on the containing tank 602, further enable the containing tank 602 to contain more paraffin fragments, after the paraffin fragments are poured into the sliding plate 601, enable the overall gravity of the containing tank 602 to be increased, further enable the containing tank 602 to pull the spring II 202 to slide downwards on the T-shaped plate 201, further enable the paraffin fragments to be pulled downwards to slide downwards on the T-shaped plate 201, further enable the paraffin fragments to be capable of being added continuously and enable the containing tank 602 to be capable of sliding downwards sliding to be capable of sliding to be observed to be in the overall height of the paraffin fragment processing tank 602 gradually increasing and being processed without the temperature of the heat source when the heat source is gradually increasing, thereby enabling the paraffin fragments to be observed to be in the temperature of the containing tank 602 gradually and the palm plate 602 to be gradually and gradually increasing, and observing to be gradually, and the temperature of the palm processing equipment gradually, and gradually increasing, thereby enabling the palm processing equipment to be gradually, thereby in adding the petroleum ether with the palm wax fragment gradually, and then make the palm wax fragment can be in higher temperature environment dissolve in the petroleum ether fast, thereby accomplish the high-efficient preparation work of preliminary treatment liquid, the preparation of preliminary treatment liquid is accomplished to the mode that adds paraffin fragment and palm wax fragment to the petroleum ether in advance to this equipment, and add paraffin fragment and palm wax fragment in-process after before, change and dissolve the inside temperature of case 103, thereby make paraffin fragment and palm wax fragment can high-efficient dissolving, accomplish high-efficient preparation purpose, and need not the high temperature energy saving that reaches directly.
Referring to fig. 2, there is shown a schematic diagram of an embodiment of the present invention that further facilitates efficient preparation, and further,
The opening at operation splendid attire groove 602 lower extreme is opened regularly, and then makes the interior paraffin fragment of slide 601 interval drop to dissolving the incasement process of case 103, and operatable T template 201 constantly slides along connecting rod 101 to constantly change the splendid attire groove 602 and correspond dissolving the case 103 position, thereby spill the paraffin fragment in the splendid attire groove 602 in different positions, make the paraffin fragment can evenly contact with petroleum ether, further be convenient for high-efficient preparation.
Referring to fig. 7-9, there is shown a schematic representation of an embodiment of the present invention for facilitating the proportional addition of petroleum ether and paraffin fragments.
The device still includes the rigid coupling at connecting rod 101 and dissolve III 102 springs between the case 103, sliding connection has the electromagnetism piece on connecting rod 101, the electromagnetism piece can adsorb dissolving case 103, it is connected with bull stick 301 to rotate on dissolving case 103, the rigid coupling has cylinder pole 303 on the bull stick 301, sliding connection has L type pole 701 on slide 601, the rigid coupling has electromagnetism board 702 on L type pole 701, electromagnetism board 702 can adsorb slide 601, it has the second motor that can drive bull stick 301 pivoted to dissolve the case 103, the rigid coupling has electric putter I that can promote the electromagnetism piece and remove on connecting rod 101.
During pouring petroleum ether into the dissolving tank 103, the petroleum ether can gradually slide downwards on the connecting rod 101, so that the connecting rod 101 gradually compresses the spring III 102, after the adding work is finished, the electromagnetic block is operated to slide downwards, so that the electromagnetic block is in contact with the dissolving tank 103, the electromagnetic block is electrified, so that the electromagnetic block adsorbs and fixes the dissolving tank 103, then the rotating rod 301 is operated to rotate adaptively, the position of the cylindrical rod 303 is adjusted, then paraffin fragments are added into the containing tank 602, so that the sliding plate 601 gradually slides downwards, when the sliding plate 601 slides to the position where the cylindrical rod 303 is in contact with the L-shaped rod 701 and the sliding plate 601 continues to slide, the L-shaped rod 701 can gradually slide upwards relative to the sliding plate 601, when the L-shaped rod 701 slides to the position where the electromagnetic plate 702 is in contact with the sliding plate 601, namely, the paraffin fragments in the containing tank 602 and the petroleum ether in the dissolving tank 103 are proved to be in a proper proportion interval, namely, the equipment can rotate by operating the rotating rod 301 by different angles, so as to limit the farthest distance that the fragments can slide downwards slide to the sliding plate 702 and the paraffin fragments can be farthest, so that the paraffin fragments can be conveniently added into the dissolving tank 103, and the paraffin wax adding work can be further added into the palm oil adding work, so that the paraffin oil can be conveniently and the auxiliary paraffin wax adding work can be continuously carried out, and the auxiliary material can be conveniently carried out, and the work can be added into the palm oil adding work, and the palm oil adding work.
Referring to fig. 6, there is shown a schematic view of an embodiment for facilitating intermittent removal of paraffin and palm wax fragments from a holding tank 602 and, further,
the device further comprises a gathering part 606 fixedly connected to the lower end of the sliding plate 601, an auxiliary plate 603 is connected to the sliding plate 601 in a sliding mode, a baffle 605 is fixedly connected to the auxiliary plate 603, an opening is formed in the lower end of the gathering part 606, and an electric push rod II capable of pushing the auxiliary plate 603 to move is fixedly connected to the containing groove 602.
During the sliding process of the T-shaped plate 201 on the connecting rod 101, the operable baffle 605 periodically slides on the containing groove 602, so that the baffle 605 intermittently opens the opening at the lower end of the gathering part 606, and therefore paraffin fragments or palm wax fragments are intermittently discharged from the lower end of the gathering part 606, and the effect of periodically scattering the paraffin fragments and the palm wax fragments is further achieved.
Referring to fig. 6, a schematic diagram illustrating an embodiment of the present invention for facilitating brushing of the opening at the lower end of the gathering portion 606 to avoid debris clogging is shown and, further,
the baffle 605 is fixedly connected with a cleaning brush.
In the process that the operation baffle 605 slides repeatedly to open the opening at the lower end of the gathering part 606 intermittently, the cleaning brush on the baffle 605 continuously brushes the opening at the lower end of the gathering part 606, so that the opening at the lower end of the gathering part 606 is cleaned repeatedly, and fragment blockage is avoided.
Referring to fig. 3-4, there is shown a schematic view of an embodiment of the present invention further facilitating uniform contact of paraffin fragments or palm wax fragments with petroleum ether to achieve efficient manufacturing results, and further,
the device also comprises two slide blocks 502 which are connected in the dissolving box 103 in a sliding way, and an agitating part 501 is fixedly connected on each slide block 502.
In the process of scattering paraffin fragments or palm wax fragments into the dissolving box 103, the two sliding blocks 502 can be operated to slide periodically, then the two sliding blocks 502 are enabled to continuously stir petroleum ether in the dissolving box 103, and the petroleum ether is stirred to naturally shake, so that the petroleum ether is further contacted with the paraffin fragments or the palm wax fragments to finish the purpose of efficient preparation.
Referring to fig. 3, 4, 7, 9, there are shown schematic views of an embodiment for facilitating the driving of the two agitating parts 501 to slide reciprocally according to the present invention, and further,
the device further comprises a transmission plate 401 connected to the connecting rod 101 in a sliding mode, one end of each of two hinge rods 403 is connected to the transmission plate 401 in a rotating mode, the other end of each of the two hinge rods 403 is connected to the two sliding blocks 502 in a rotating mode, and a spring IV 203 is fixedly connected between the transmission plate 401 and the connecting rod 101.
In the process of adding fragments into the containing groove 602 and further making the sliding plate 601 slide downwards, the sliding plate 601 can naturally press the transmission plate 401 to move downwards, so that the transmission plate 401 overcomes the pulling force of the spring IV 203 and then slides downwards, in the process of sliding the transmission plate 401 downwards, the two hinge rods 403 can drive the two sliding blocks 502 to naturally slide on the dissolving tank 103, then when the L-shaped rod 701 slides to the contact between the electromagnetic plate 702 and the sliding plate 601, the electromagnetic plate 702 can be started, so that the electromagnetic plate 702 adsorbs and fixes the sliding plate 601, then the rotating rod 301 is rotated in a reciprocating manner so that the cylindrical rod 303 continuously pushes the L-shaped rod 701, so that the L-shaped rod 701 continuously drives the sliding plate 601 to move upwards and downwards, so that the transmission plate 401 is continuously moved in a reciprocating manner up and down in cooperation with the pulling force of the spring IV 203, so that the two stirring portions 501 stir the petroleum ether inside the dissolving tank 103, thereby completing the reciprocating sliding effect of driving the two stirring portions 501, and stopping the stirring operation until the weight of the fragments in the containing groove 602 is reduced to the condition that the L-shaped rod 701 is separated from the rotating contact range of the cylindrical rod 303.
Referring to fig. 4-5, there are shown schematic views of embodiments of further enhancing the toggle effect according to the present invention and, further,
the device further comprises a bump 604 fixedly connected to the lower end of the baffle 605, and the driving plate 401 is provided with a plurality of protruding round rods 402.
When carrying out the work of stirring, thereby because need regularly slide accessory plate 603 make the lug 604 on baffle 605 and certain contact in a plurality of protruding round bars 402, and then pressure move driving plate 401 and slide down, when frequently sliding accessory plate 603 and carrying out unrestrained fragment operation, can make two stirring portion 501 stir the in-process in the slip, take place high frequency vibrations to further improve and stir the effect.
Referring to fig. 3, 4, 7, 9, there is shown a schematic view of an embodiment of further improving the toggle effect according to the present invention, and further,
the device also comprises a transverse rod 302 fixedly connected on the rotating rod 301, rectangular plates are arranged on the two stirring parts 501, and a spring V503 is fixedly connected between each rectangular plate and the sliding block 502.
In operation bull stick 301 rotates the in-process, can make the transverse bar 302 on the bull stick 301 stir two rectangular plates and upwards slide, then make two stirring portion 501 upwards slide to change and stir the height, cooperate two springs V503 simultaneously and can make two stirring portions 501 can automatic re-setting, and then stir the in-process at two stirring portions 501, constantly change stir the height, further improve and stir the effect.
The solvent-free epoxy curing agent prepared by the preparation method of the solvent-free epoxy curing agent comprises the following raw materials in parts by weight: 10-12 parts of paraffin, 15-18 parts of palm wax, 5-8 parts of cationic surfactant, 20-25 parts of fatty amine accelerator, 30-35 parts of nano lignin powder, 10-15 parts of lignosulfonate, 5-8 parts of sodium silicate, 10-15 parts of flexibilizer and 55-85 parts of benzyl polyamine
And 55-85 parts of polyamine-epoxy adduct.
Claims (10)
1. A preparation method of a solvent-free epoxy curing agent is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: sequentially adding the paraffin fragments and the carnauba wax fragments into petroleum ether by using an auxiliary device, and uniformly stirring to obtain a pretreatment solution;
step two: uniformly mixing the pretreatment liquid with a cationic surfactant, and adding a fatty amine accelerator into the mixture to obtain a prefabricated product;
step three: dispersing and heating the prefabricated product to obtain a finished product accelerator;
step four: uniformly dispersing the finished product accelerant and the nano lignin powder to obtain a prefabricated object I;
step five: uniformly mixing lignosulfonate, sodium silicate and water, adding a toughening agent, and heating and volatilizing to obtain a prefabricated object II;
step six: uniformly mixing benzyl polyamine and polyamine-epoxy adduct, and adding the prefabricated object I and the prefabricated object I to obtain a finished product curing agent;
auxiliary device includes connecting rod (101), be connected with on connecting rod (101) and dissolve case (103) and T template (201), sliding connection has slide (601) on T template (201), the rigid coupling has splendid attire groove (602) on slide (601), splendid attire groove (602) lower extreme is equipped with the opening, it is equipped with the notch to correspond the position on slide (601), the rigid coupling has spring II (202) between slide (601) and T template (201), be equipped with a plurality of screw holes on splendid attire groove (602), it is equipped with the heating source to dissolve case (103) lower extreme.
2. The method for preparing the solvent-free epoxy curing agent according to claim 1, wherein the T-shaped plate (201) is slidably connected to the connecting rod (101).
3. The method for preparing a solventless epoxy curing agent according to claim 2, wherein: the device still includes spring III (102) of rigid coupling between connecting rod (101) and dissolution case (103), sliding connection has the electromagnetism piece on connecting rod (101), the electromagnetism piece can adsorb dissolution case (103), it is connected with bull stick (301) to rotate on dissolution case (103), the rigid coupling has cylinder pole (303) on bull stick (301), sliding connection has L type pole (701) on slide (601), the rigid coupling has electromagnetic plate (702) on L type pole (701), electromagnetic plate (702) can adsorb slide (601).
4. The method for preparing a solventless epoxy curing agent according to claim 3, wherein: the device also comprises a gathering part (606) fixedly connected to the lower end of the sliding plate (601), an auxiliary plate (603) is connected to the sliding plate (601) in a sliding mode, and a baffle (605) is fixedly connected to the auxiliary plate (603).
5. The method for preparing a solventless epoxy curing agent according to claim 4, wherein: the baffle (605) is fixedly connected with a cleaning brush.
6. The method for preparing a solventless epoxy curing agent according to claim 5, wherein: the device also comprises two sliding blocks (502) which are connected in the dissolving box (103) in a sliding way, and a stirring part (501) is fixedly connected on each sliding block (502).
7. The method for preparing a solventless epoxy curing agent according to claim 6, wherein: the device still includes driving plate (401) of sliding connection on connecting rod (101), rotates the one end that is connected with two articulated rods (403) on driving plate (401), and the other end of two articulated rods (403) rotates respectively and connects on two slider (502), and the rigid coupling has spring IV (203) between driving plate (401) and connecting rod (101).
8. The method for preparing a solventless epoxy curing agent according to claim 7, wherein: the device also comprises a convex block (604) fixedly connected to the lower end of the baffle (605), and a plurality of convex round rods (402) are arranged on the transmission plate (401).
9. The method for preparing a solventless epoxy curing agent according to claim 8, wherein: the device also comprises a transverse rod (302) fixedly connected to the rotating rod (301), rectangular plates are arranged on the two stirring parts (501), and a spring V (503) is fixedly connected between each rectangular plate and the sliding block (502).
10. The solventless epoxy hardener prepared by the method of any one of claims 1-9, wherein: the solvent-free epoxy curing agent comprises the following raw materials in parts by weight: 10-12 parts of paraffin, 15-18 parts of palm wax, 5-8 parts of cationic surfactant, 20-25 parts of fatty amine accelerator, 30-35 parts of nano lignin powder, 10-15 parts of lignosulfonate, 5-8 parts of sodium silicate, 10-15 parts of flexibilizer, 55-85 parts of benzyl polyamine and 55-85 parts of polyamine-epoxy adduct.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211304740.5A CN115490833A (en) | 2022-10-24 | 2022-10-24 | Solvent-free epoxy curing agent and preparation method thereof |
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| CN202211304740.5A CN115490833A (en) | 2022-10-24 | 2022-10-24 | Solvent-free epoxy curing agent and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507885A (en) * | 2022-03-01 | 2022-05-17 | 张洁 | Electroplating solution and preparation process thereof |
| CN114773579A (en) * | 2022-06-02 | 2022-07-22 | 江西百盛精细化学品有限公司 | Solvent-free epoxy curing agent and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507885A (en) * | 2022-03-01 | 2022-05-17 | 张洁 | Electroplating solution and preparation process thereof |
| CN114773579A (en) * | 2022-06-02 | 2022-07-22 | 江西百盛精细化学品有限公司 | Solvent-free epoxy curing agent and preparation method thereof |
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