CN111808551A - Temperature-resistant EVA hot melt adhesive and copolymerization reaction device thereof - Google Patents
Temperature-resistant EVA hot melt adhesive and copolymerization reaction device thereof Download PDFInfo
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- CN111808551A CN111808551A CN202010706462.0A CN202010706462A CN111808551A CN 111808551 A CN111808551 A CN 111808551A CN 202010706462 A CN202010706462 A CN 202010706462A CN 111808551 A CN111808551 A CN 111808551A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a temperature-resistant EVA hot melt adhesive and a copolymerization reaction device thereof, belonging to geotechnical engineering investigation equipment, comprising the following components in parts by weight: 80-100 parts of basic resin, 20-30 parts of tackifier, 10-22 parts of viscosity regulator, 5-10 parts of antioxidant, 0.5-5 parts of silane coupling agent, 10-15 parts of reinforcing agent, 1-8 parts of high-tear-resistance silicone rubber, 5-17 parts of high-temperature-resistant silicone rubber and 0.01-0.3 part of inhibitor. According to the invention, through the mutual matching of the added and designed high-tear-resistance silicone rubber, the high-temperature-resistant silicone rubber, the inhibitor, the reinforcing agent, the silane coupling agent, the motor, the cylinder rod, the air pump, the flow dividing pipe, the flow dividing cover, the first one-way valve, the second one-way valve, the hydraulic cylinder and the piston, the EVA hot melt adhesive ingredients in the polymerization reaction kettle can be stirred and mixed in all directions in the horizontal and vertical directions, the EVA hot melt adhesive ingredients are prevented from depositing at the bottom of the inner side of the polymerization reaction kettle, the mixing efficiency and the mixing effect are improved, and the EVA hot melt adhesive ingredients are reacted more fully.
Description
Technical Field
The invention belongs to the technical field of geotechnical engineering investigation equipment, and particularly relates to a temperature-resistant EVA hot melt adhesive and a copolymerization reaction device thereof.
Background
The EVA hot melt adhesive is a polymer which does not need solvent, contains no water and is meltable in 100% solid, is solid at normal temperature, is heated and melted to a certain degree to become a liquid adhesive which can flow and has certain viscosity, and is light brown translucent or natural white after being melted. The main component of the hot-melt adhesive is that basic resin is made up by using ethylene and vinyl acetate through the processes of high-pressure copolymerization, then adding tackifier, viscosity regulator and antioxidant, etc. to obtain the invented hot-melt adhesive
The copolymerization reaction is also called copolymerization (reaction), and is a polymerization reaction involving several unsaturated or cyclic monomer molecules, for example, butadiene and styrene are copolymerized to form a styrene-butadiene copolymer (styrene-butadiene rubber), and according to the arrangement of various monomers in the resulting copolymer chain, the copolymerization reaction can be classified into random copolymerization, alternating copolymerization, block copolymerization (or mosaic copolymerization) and graft copolymerization.
The hot melt adhesive is of a great variety, there is different requirement in each trade, however, ordinary EVA hot melt adhesive heat resistance and tear resistance are relatively poor, under the relatively higher environment of temperature, the EVA hot melt adhesive just begins to melt, the glue silk fracture, cause the product to glue the department fracture, and the EVA hot melt adhesive batching is carrying out polymerization's in-process in carrying out the polymerization cauldron, the easy deposit of batching is in the inboard bottom of reation kettle, it is comparatively low to lead to the cooperation efficiency and the effect between the EVA hot melt adhesive batching, seriously influence the off-the-shelf quality of EVA hot melt adhesive, therefore, urgent need for a temperature resistant EVA hot melt adhesive and copolymerization device on the market at present stage to solve above-mentioned problem.
Disclosure of Invention
The invention aims to: in order to solve the problems that the heat resistance and the tear resistance of a common EVA hot melt adhesive are poor, the EVA hot melt adhesive begins to melt under the relatively high temperature environment, a glue thread is broken, the adhesive part of a product is cracked, and the EVA hot melt adhesive is prepared in the polymerization reaction process in a polymerization reaction kettle, the prepared material is easily deposited at the bottom of the inner side of the reaction kettle, so that the matching efficiency and the effect of the prepared EVA hot melt adhesive are low, and the quality of the finished EVA hot melt adhesive is seriously influenced, the temperature-resistant EVA hot melt adhesive and the copolymerization reaction device thereof are provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a temperature-resistant EVA hot melt adhesive comprises the following components in parts by weight: 80-100 parts of basic resin, 20-30 parts of tackifier, 10-22 parts of viscosity regulator, 5-10 parts of antioxidant, 0.5-5 parts of silane coupling agent, 10-15 parts of reinforcing agent, 1-8 parts of high-tear-resistance silicone rubber, 5-17 parts of high-temperature-resistant silicone rubber and 0.01-0.3 part of inhibitor, wherein the reinforcing agent is a mixture of carbon black N330 and white carbon black, and the inhibitor can be methyl butynol or ethynyl cyclohexanol.
A copolymerization reaction device for producing the temperature-resistant EVA hot melt adhesive as claimed in claim 1, which comprises a polymerization reaction kettle, wherein a first bearing is clamped at the top of the polymerization reaction kettle, a barrel rod is sleeved in the first bearing, a second bearing is clamped at the upper end of the inner side of the barrel rod, a first connecting pipe is sleeved in the second bearing, one end of the first connecting pipe, far away from the second bearing, is communicated with an air outlet of an air pump, a flow dividing pipe is clamped on the surface of the barrel rod and is positioned in the polymerization reaction kettle, a flow dividing cover is fixedly connected on the surface of the barrel rod, a spray nozzle is clamped at the bottom of the flow dividing cover, a first one-way valve is arranged at the position, corresponding to the flow dividing cover, of the surface of the barrel rod, a first sealing plate is fixedly connected at the bottom of the barrel rod, the first sealing plate is positioned below the flow dividing cover, and a second one-way, the inside fixedly connected with second closing plate of section of thick bamboo pole, the second closing plate is located the top of reposition of redundant personnel cover, the bottom of second closing plate passes through the top fixed connection of pneumatic cylinder and piston, the piston cup joints in the inside of section of thick bamboo pole.
As a further description of the above technical solution:
the shunt tubes are of an L-shaped structure, and shunt holes are formed in the surfaces of the shunt tubes.
As a further description of the above technical solution:
the surface of the cylinder rod is wound and connected with a helical blade, and the helical blade is positioned below the spray head.
As a further description of the above technical solution:
the surface fixed connection of section of thick bamboo pole has driven gear, driven gear's surface meshing has the driving gear, the bottom of driving gear and the tip fixed connection of motor output shaft, the top fixed connection of shock mount and polymerization cauldron is passed through to the bottom of motor fuselage, the top fixed connection of shock mount and polymerization cauldron is passed through to the bottom of air pump fuselage, be provided with the second connecting pipe on the air intake of air pump.
As a further description of the above technical solution:
the top of the polymerization reaction kettle is clamped with a feeding pipe, the upper end part of the inner side of the feeding pipe is sleeved with a sealing plug, and the top of the polymerization reaction kettle is provided with a pressure relief pipe.
As a further description of the above technical solution:
the lateral surface of polymerization cauldron and the inside wall fixed connection of base, the bottom fixedly connected with supporting leg of base, polymerization cauldron's bottom joint has the discharging pipe, the surface of discharging pipe is provided with the valve.
As a further description of the above technical solution:
the input of motor passes through the wire and is connected with the output of first switch electricity, the input of pneumatic cylinder passes through the wire and is connected with the output electricity of second switch, the input of air pump passes through the wire and is connected with the output electricity of third switch, the input of first switch, second switch and third switch all is connected with the output electricity of power through the wire, first switch, second switch, third switch and power all set up the surface at the base.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, through the mutual matching of the added and designed high-tear-resistance silicone rubber, the high-temperature-resistant silicone rubber, the inhibitor, the reinforcing agent, the silane coupling agent, the motor, the cylinder rod, the air pump, the flow dividing pipe, the flow dividing cover, the first one-way valve, the second one-way valve, the hydraulic cylinder and the piston, the bonding strength of the EVA hot melt adhesive is enhanced, the heat-resistant temperature of the EVA hot melt adhesive is improved, the EVA hot melt adhesive can be widely applied to actual production, and through the synergistic effect of multiple mixing modes, the EVA hot melt adhesive ingredients in a polymerization reaction kettle can be stirred and mixed in all directions in the horizontal and vertical directions, so that the EVA hot melt adhesive ingredients are prevented from being deposited at the bottom of the inner side of the polymerization reaction kettle, the mixing efficiency and.
2. According to the invention, through the introduction of the added silane coupling agent and reinforcing agent, the heat generation of the EVA hot melt adhesive in the use process is reduced, the heat resistance of the EVA hot melt adhesive is improved, the service life of the finished EVA hot melt adhesive is prolonged, the hardness, the wear resistance, the tear strength and the tensile strength of the EVA hot melt adhesive can be greatly improved through the addition of the added high-tear-resistant silicon rubber and the high-tear-resistant silicon rubber, the EVA hot melt adhesive has excellent high and low temperature resistance, aging resistance, excellent dielectric property and physiological inertia, the reinforced EVA hot melt adhesive has higher modulus, definite elongation, hardness and particularly obvious tear resistance, weather resistance and bending tensile property, through the added inhibitor, the use amount of the inhibitor is small, the curing time is short, the use amount of the inhibitor is too large, the curing speed is slow, and through the designed cylinder rod, driven gear, driving gear and reinforcing gear, The motor and the helical blade are operated, the first switch is operated to enable the motor to operate, the motor can utilize the driving gear and the driven gear to apply torque force on the cylinder rod in the working process and enable the cylinder rod to perform stable rotation action in the first bearing, in the process, the helical blade can be driven to perform synchronous action in the polymerization reaction kettle, EVA hot melt adhesive ingredients deposited at the bottom of the inner side of the polymerization reaction kettle under the driving of the helical blade flow upwards, the mixing efficiency and the mixing effect of the EVA hot melt adhesive ingredients during polymerization reaction can be improved to a certain extent, through the designed air pump, the first connecting pipe, the second connecting pipe and the shunt pipe, the second connecting pipe is used for introducing inert gas into an air inlet of the air pump, the third switch is operated to enable the air pump to operate, and in the working process of the air pump, the inert gas can be injected into the cylinder rod through the first connecting pipe, and the water is sprayed into the polymerization reaction kettle through the shunt pipe, so that the barrel rod not only has a stirring function, but also can utilize inert gas to replace the air in the polymerization reaction kettle, the inert gas is uniformly introduced into the polymerization reaction kettle in an all-round way, the pneumatic stirring is carried out, the stirring and mixing effects and efficiency are improved, the materials at each part are mixed more uniformly, and through the designed second bearing, the second bearing is used as a connecting medium between the first connecting pipe and the barrel rod, so that the barrel rod can keep a relatively static state in the rotating action process.
3. In the invention, through the designed shunting cover, the spray head, the first one-way valve, the second one-way valve, the first sealing plate, the piston, the hydraulic cylinder and the second sealing plate, the second switch is operated to enable the hydraulic cylinder to do telescopic action, when the hydraulic cylinder retracts, the end part of the hydraulic cylinder drives the piston to slide upwards in the cylinder rod, the second one-way valve is in an open state, the first one-way valve is in a closed state, so that sediments at the bottom of the inner side of the polymerization reaction kettle can be sucked into the cylinder rod and gradually rise above the first sealing plate, when the hydraulic cylinder extends, the end part of the hydraulic cylinder can drive the piston to slide downwards in the cylinder rod, the second one-way valve is in a closed state, the first one-way valve is in an open state, so that EVA hot melt adhesive ingredients which are positioned in the cylinder rod and above the first sealing plate can be guided into the shunting cover, spray the upper strata at EVA hot melt adhesive mixed ingredients through the shower nozzle at last, feeding pipe and sealing plug through the design, feeding pipe's settlement is the batching that is used for putting into the EVA hot melt adhesive in the polymerization reaction cauldron, the sealing plug is used for guaranteeing that the EVA hot melt adhesive carries out the leakproofness of polymerization reaction in-process in the polymerization reaction cauldron, pressure release pipe through the design, an atmospheric pressure value for invariable polymerization reaction cauldron, discharging pipe and valve through the design, the valve is used for controlling the break-make of discharging pipe, and the discharging pipe is used for exporting the EVA hot melt adhesive that will accomplish polymerization reaction in the polymerization reaction cauldron.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of a temperature-resistant EVA hot melt adhesive and a copolymerization reaction device thereof according to the present invention;
FIG. 2 is an enlarged schematic structural view of a temperature-resistant EVA hot melt adhesive and a copolymerization reaction device A thereof provided by the invention;
FIG. 3 is a schematic view of a front view cross-sectional structure of a polymerization reactor of a temperature-resistant EVA hot melt adhesive and a copolymerization reaction device thereof according to the present invention;
FIG. 4 is a schematic cross-sectional view of a temperature-resistant EVA hot melt adhesive and a copolymerization device thereof in front view;
FIG. 5 is an enlarged schematic structural view of a temperature-resistant EVA hot melt adhesive and a copolymerization reaction device B thereof.
Illustration of the drawings:
1. a base resin; 2. a tackifier; 3. a viscosity modifier; 4. an antioxidant; 5. a silane coupling agent; 6. a strengthening agent; 7. high tear resistance silicone rubber; 8. high temperature resistant silicone rubber; 9. an inhibitor; 10. a polymerization reaction kettle; 11. a first bearing; 12. a barrel bar; 13. a driven gear; 14. a driving gear; 15. a motor; 16. a second bearing; 17. a first connecting pipe; 18. an air pump; 19. a second connecting pipe; 20. a first switch; 21. a shunt tube; 22. a flow dividing cover; 23. a spray head; 24. a first check valve; 25. a first sealing plate; 26. a second one-way valve; 27. a piston; 28. a hydraulic cylinder; 29. a second sealing plate; 30. a feeding pipe; 31. a sealing plug; 32. a pressure relief pipe; 33. a second switch; 34. a discharge pipe; 35. a valve; 36. a base; 37. supporting legs; 38. a third switch; 39. a power source; 40. a helical blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a temperature-resistant EVA hot melt adhesive comprises the following components in parts by weight: 100 parts of basic resin 180-one, 220-30 parts of tackifier, 310-22 parts of viscosity regulator, 45-10 parts of antioxidant, 50.5-5 parts of silane coupling agent, 610-15 parts of reinforcing agent, 71-8 parts of high-tear-resistance silicone rubber, 85-17 parts of high-temperature-resistant silicone rubber and 90.01-0.3 part of inhibitor, wherein the silane coupling agent 5 and the reinforcing agent 6 are added, and the silane coupling agent 5 and the reinforcing agent 6 are introduced, so that the EVA heat generation in the use process of the EVA hot melt adhesive is reduced, the heat resistance of the EVA hot melt adhesive is improved, the service life of the EVA hot melt adhesive finished product is prolonged, the reinforcing agent 6 is a mixture of carbon black N330 and white carbon black, and the inhibitor 9 can be methyl butynol or ethynyl cyclohexanol.
A copolymerization reaction device for producing the temperature-resistant EVA hot melt adhesive of claim 1, which comprises a polymerization reaction kettle 10, wherein a first bearing 11 is clamped at the top of the polymerization reaction kettle 10, a cylinder rod 12 is sleeved in the first bearing 11, a second bearing 16 is clamped at the upper end part of the inner side of the cylinder rod 12, the second bearing 16 is designed to be used as a connecting medium between a first connecting pipe 17 and the cylinder rod 12, so that the cylinder rod 12 can keep a relatively static state in the rotating process of the cylinder rod 17, the first connecting pipe 17 is sleeved in the second bearing 16, one end of the first connecting pipe 17 far away from the second bearing 16 is communicated with an air outlet of an air pump 18, the second connecting pipe 19 is used for introducing inert gas to an air inlet of the air pump 18 through the designed air pump 18, the first connecting pipe 17, the second connecting pipe 19 and a shunt pipe 21, the third switch 38 is operated to operate the air pump 18, in the working process of the air pump 18, inert gas can be injected into the barrel rod 12 through the first connecting pipe 17 and is sprayed into the polymerization reaction kettle 10 through the shunt pipe 21, so that the barrel rod 12 not only has a stirring function, but also the inert gas can be used for replacing the air in the polymerization reaction kettle 10, and meanwhile, the inert gas is uniformly introduced into the polymerization reaction kettle 10 in an all-around manner, so that the pneumatic stirring is performed, the stirring and mixing effect and efficiency are improved, so that the materials at each position are more uniformly mixed, the shunt pipe 21 is clamped on the surface of the barrel rod 12 and is positioned in the polymerization reaction kettle 10, the surface of the barrel rod 12 is fixedly connected with the shunt cover 22, the bottom of the shunt cover 22 is clamped with the spray head 23, the position, corresponding to the shunt cover 22, on the surface of the barrel rod 12 is provided with the first check valve 24, the bottom of the barrel rod 12 is fixedly connected with the first sealing plate 25, the first sealing plate 25 is positioned below, the second check valve 26 is clamped on the first sealing plate 25, the hydraulic cylinder 28 is made to perform telescopic action by the designed diversion cover 22, the nozzle 23, the first check valve 24, the second check valve 26, the first sealing plate 25, the piston 27, the hydraulic cylinder 28 and the second sealing plate 29, when the hydraulic cylinder 28 performs retraction action, the end part thereof drives the piston 27 to slide upwards in the cylinder rod 12, at this time, the second check valve 26 is in an open state, the first check valve 24 is in a closed state, so that the sediment at the bottom of the inner side of the polymerization reaction kettle 10 can be sucked into the cylinder rod 12 and gradually ascends to the upper part of the first sealing plate 25, when the hydraulic cylinder 28 performs extension action, the end part thereof can drive the piston 27 to slide downwards in the cylinder rod 12, at this time, the second check valve 26 is in a closed state, the first check valve 24 is in an open state, therefore, the EVA hot melt adhesive ingredient which is positioned inside the cylinder rod 12 and above the first sealing plate 25 can be guided into the shunt cover 22 and finally sprayed on the upper layer of the EVA hot melt adhesive mixed ingredient through the spray head 23, the second sealing plate 29 is fixedly connected inside the cylinder rod 12, the second sealing plate 29 is positioned above the shunt cover 22, the bottom of the second sealing plate 29 is fixedly connected with the top of the piston 27 through the hydraulic cylinder 28, and the piston 27 is sleeved inside the cylinder rod 12.
Specifically, as shown in fig. 3, the shunt tube 21 is an L-shaped structure, and a shunt hole is formed on the surface of the shunt tube 21.
Specifically, as shown in fig. 3, the spiral blade 40 is wound around the surface of the cylindrical rod 12, and the spiral blade 40 is located below the spray head 23, and by means of the designed cylindrical rod 12, the driven gear 13, the driving gear 14, the motor 15 and the spiral blade 40, the first switch 20 is operated to operate the motor 15, so that the motor 15 can utilize the driving gear 14 and the driven gear 13 to apply a torque force to the cylindrical rod 12 in the working process, and the cylindrical rod 12 can perform a stable rotation motion in the first bearing 11, in this process, the spiral blade 40 can be driven to perform a synchronous motion in the polymerization reactor 10, and the EVA hot melt adhesive ingredient deposited at the bottom inside the polymerization reactor 10 under the driving of the spiral blade 40 flows upward, so that the mixing efficiency and the mixing effect of the EVA hot melt adhesive ingredient during the polymerization reaction can be improved to a certain extent.
Specifically, as shown in fig. 2, a driven gear 13 is fixedly connected to the surface of the barrel rod 12, a driving gear 14 is engaged with the surface of the driven gear 13, the bottom of the driving gear 14 is fixedly connected to the end of an output shaft of a motor 15, the bottom of a body of the motor 15 is fixedly connected to the top of the polymerization reactor 10 through a shock-absorbing seat, the bottom of a body of an air pump 18 is fixedly connected to the top of the polymerization reactor 10 through a shock-absorbing seat, and an air inlet of the air pump 18 is provided with a second connecting pipe 19.
Specifically, as shown in fig. 1, a feeding pipe 30 is clamped at the top of the polymerization reactor 10, a sealing plug 31 is sleeved at the upper end inside the feeding pipe 30, the feeding pipe 30 and the sealing plug 31 are designed, the feeding pipe 30 is set to be a material for feeding EVA hot melt adhesive into the polymerization reactor 10, the sealing plug 31 is used for ensuring the sealing performance of the EVA hot melt adhesive in the polymerization reaction process of the polymerization reactor 10, and a pressure relief pipe 32 is arranged at the top of the polymerization reactor 10 and is used for keeping the pressure value inside the polymerization reactor 10 constant through the designed pressure relief pipe 32.
Specifically, as shown in fig. 1, the outer side surface of the polymerization reactor 10 is fixedly connected with the inner side wall of the base 36, the bottom of the base 36 is fixedly connected with the support legs 37, the bottom of the polymerization reactor 10 is connected with the discharge pipe 34 in a clamping manner, the surface of the discharge pipe 34 is provided with the valve 35, the valve 35 is used for controlling the on-off of the discharge pipe 34 through the designed discharge pipe 34 and valve 35, and the discharge pipe 34 is used for leading out the EVA hot melt adhesive completing the polymerization reaction from the polymerization reactor 10.
Specifically, as shown in fig. 1, an input end of the motor 15 is electrically connected to an output end of the first switch 20 through a wire, an input end of the hydraulic cylinder 28 is electrically connected to an output end of the second switch 33 through a wire, an input end of the air pump 18 is electrically connected to an output end of the third switch 38 through a wire, input ends of the first switch 20, the second switch 33, and the third switch 38 are electrically connected to an output end of the power source 39 through wires, and the first switch 20, the second switch 33, the third switch 38, and the power source 39 are disposed on a surface of the base 36.
The working principle is as follows: when in use, the sealing plug 31 is firstly opened, ingredients required by the polymerization reaction of the EVA hot melt adhesive are put into the polymerization reaction kettle 10 through the feeding pipe 30, then the first switch 20 is firstly operated to enable the motor 15 to operate, the torque force can be acted on the cylinder rod 12 by the driving gear 14 and the driven gear 13 when the motor 15 works, and the cylinder rod 12 can carry out stable rotation action in the first bearing 11, in the process, the spiral blade 40 can be driven to synchronously act in the polymerization reaction kettle 10, the EVA hot melt adhesive ingredients deposited at the bottom of the inner side of the polymerization reaction kettle 10 under the driving of the spiral blade 40 flow upwards, the mixing efficiency and the mixing effect of the EVA hot melt adhesive ingredients during the polymerization reaction can be improved to a certain extent, in the process, the third switch 38 is also required to operate the air pump 18, in the working process of the air pump 18, inert gas can be injected into the cylinder rod 12 through the first connecting pipe 17, and is sprayed into the polymerization reaction kettle 10 through the shunt pipe 21, so that the cylinder rod 12 not only has a stirring function, but also can utilize inert gas to replace the air in the polymerization reaction kettle 10, simultaneously, the inert gas is uniformly introduced into the polymerization reaction kettle 10 in an all-round way to carry out pneumatic stirring, the stirring and mixing effect and efficiency are improved, so that the materials at each position are mixed more uniformly, the second switch 33 is operated to ensure that the hydraulic cylinder 28 carries out telescopic action, when the hydraulic cylinder 28 carries out retraction action, the end part thereof drives the piston 27 to slide upwards in the cylinder rod 12, at the moment, the second check valve 26 is in an open state, the first check valve 24 is in a closed state, so that the sediment at the bottom inside the polymerization reaction kettle 10 can be sucked into the cylinder rod 12 and gradually rises to the upper part of the first sealing plate 25, when the hydraulic cylinder 28 carries out extension action, the end part thereof can drive the piston 27 to slide downwards in the cylinder rod 12, at this time, the second check valve 26 is in a closed state, and the first check valve 24 is in an open state, so that the EVA hot melt adhesive ingredient located inside the cylinder rod 12 and above the first sealing plate 25 can be guided into the diversion cover 22, and finally sprayed on the upper layer of the EVA hot melt adhesive mixed ingredient through the spray head 23.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (8)
1. The temperature-resistant EVA hot melt adhesive is characterized by comprising the following components in parts by weight: 80-100 parts of basic resin (1), 20-30 parts of tackifier (2), 10-22 parts of viscosity regulator (3), 5-10 parts of antioxidant (4), 0.5-5 parts of silane coupling agent (5), 10-15 parts of reinforcing agent (6), 1-8 parts of high-tear-resistance silicone rubber (7), 5-17 parts of high-temperature-resistant silicone rubber (8) and 0.01-0.3 part of inhibitor (9), wherein the reinforcing agent (6) is a mixture of carbon black N330 and white carbon black, and the inhibitor (9) can be methyl butynol or ethynyl cyclohexanol.
2. The temperature-resistant EVA hot melt adhesive copolymerization device for producing the temperature-resistant EVA hot melt adhesive copolymerization reaction device of claim 1, which comprises a polymerization reaction kettle (10), wherein a first bearing (11) is clamped at the top of the polymerization reaction kettle (10), a barrel rod (12) is sleeved in the first bearing (11), a second bearing (16) is clamped at the upper end of the inner side of the barrel rod (12), a first connecting pipe (17) is sleeved in the second bearing (16), one end, far away from the second bearing (16), of the first connecting pipe (17) is communicated with an air outlet of an air pump (18), a shunt pipe (21) is clamped on the surface of the barrel rod (12), the shunt pipe (21) is positioned in the polymerization reaction kettle (10), a shunt cover (22) is fixedly connected on the surface of the barrel rod (12), a spray head (23) is clamped at the bottom of the shunt cover (22), a first check valve (24) is arranged at the position, corresponding to the shunt cover (22), on the surface of the barrel rod (12), the bottom fixedly connected with first sealing plate (25) of section of thick bamboo pole (12), first sealing plate (25) are located the below of reposition of redundant personnel cover (22), the joint has second check valve (26) on first sealing plate (25), the inside fixedly connected with second sealing plate (29) of section of thick bamboo pole (12), second sealing plate (29) are located the top of reposition of redundant personnel cover (22), the top fixed connection of pneumatic cylinder (28) and piston (27) is passed through to the bottom of second sealing plate (29), piston (27) cup joint the inside at section of thick bamboo pole (12).
3. The temperature-resistant EVA hot melt adhesive and copolymerization device thereof according to claim 2, wherein the shunt tube (21) is of an L-shaped structure, and the surface of the shunt tube (21) is provided with shunt holes.
4. The temperature-resistant EVA hot melt adhesive and copolymerization reaction device thereof according to claim 2, wherein the surface of the cylinder rod (12) is wound and connected with a helical blade (40), and the helical blade (40) is positioned below the spray head (23).
5. The temperature-resistant EVA hot melt adhesive and copolymerization reaction device thereof according to claim 2, wherein the surface of the barrel rod (12) is fixedly connected with a driven gear (13), the surface of the driven gear (13) is engaged with a driving gear (14), the bottom of the driving gear (14) is fixedly connected with the end of an output shaft of a motor (15), the bottom of the body of the motor (15) is fixedly connected with the top of the polymerization reaction kettle (10) through a damping seat, the bottom of the body of the air pump (18) is fixedly connected with the top of the polymerization reaction kettle (10) through a damping seat, and an air inlet of the air pump (18) is provided with a second connecting pipe (19).
6. The temperature-resistant EVA hot melt adhesive and copolymerization reaction device thereof according to claim 2, wherein a feeding pipe (30) is clamped at the top of the polymerization reaction kettle (10), a sealing plug (31) is sleeved at the upper end of the inner side of the feeding pipe (30), and a pressure relief pipe (32) is arranged at the top of the polymerization reaction kettle (10).
7. The temperature-resistant EVA hot melt adhesive and copolymerization reaction device thereof according to claim 5, wherein the outer side surface of the polymerization reaction kettle (10) is fixedly connected with the inner side wall of the base (36), the bottom of the base (36) is fixedly connected with supporting legs (37), the bottom of the polymerization reaction kettle (10) is clamped with a discharge pipe (34), and the surface of the discharge pipe (34) is provided with a valve (35).
8. The temperature-resistant EVA hot melt adhesive and copolymerization reaction device thereof according to claim 7, wherein the input end of the motor (15) is electrically connected with the output end of the first switch (20) through a wire, the input end of the hydraulic cylinder (28) is electrically connected with the output end of the second switch (33) through a wire, the input end of the air pump (18) is electrically connected with the output end of the third switch (38) through a wire, the input ends of the first switch (20), the second switch (33) and the third switch (38) are electrically connected with the output end of the power supply (39) through wires, and the first switch (20), the second switch (33), the third switch (38) and the power supply (39) are all arranged on the surface of the base (36).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010706462.0A CN111808551A (en) | 2020-07-21 | 2020-07-21 | Temperature-resistant EVA hot melt adhesive and copolymerization reaction device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010706462.0A CN111808551A (en) | 2020-07-21 | 2020-07-21 | Temperature-resistant EVA hot melt adhesive and copolymerization reaction device thereof |
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| CN111808551A true CN111808551A (en) | 2020-10-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111821931A (en) * | 2020-07-14 | 2020-10-27 | 韩智源 | Polymerization reaction kettle |
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| US20060116459A1 (en) * | 1999-11-12 | 2006-06-01 | Morrison Brian D | Low application temperature hot melt adhesive |
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| CN109401683A (en) * | 2018-10-25 | 2019-03-01 | 北京文盛印刷材料有限公司 | Adhesive bookbinding hot melt adhesive and preparation method thereof |
| CN109456720A (en) * | 2018-11-20 | 2019-03-12 | 衢州市富星和宝黏胶工业有限公司 | A kind of structure glue |
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| US20060116459A1 (en) * | 1999-11-12 | 2006-06-01 | Morrison Brian D | Low application temperature hot melt adhesive |
| CN103756594A (en) * | 2013-12-30 | 2014-04-30 | 日邦树脂(无锡)有限公司 | Hot melt adhesive for wire-drawing packaging and preparation method thereof |
| CN108047998A (en) * | 2017-12-08 | 2018-05-18 | 上海化工研究院有限公司 | EVA hot-melt adhesive for UHMWPE products bonding and preparation method thereof |
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Application publication date: 20201023 |