CN111675991A - Preparation method of antibacterial epoxy resin pouring sealant - Google Patents
Preparation method of antibacterial epoxy resin pouring sealant Download PDFInfo
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- CN111675991A CN111675991A CN202010605727.8A CN202010605727A CN111675991A CN 111675991 A CN111675991 A CN 111675991A CN 202010605727 A CN202010605727 A CN 202010605727A CN 111675991 A CN111675991 A CN 111675991A
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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
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
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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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Abstract
The invention relates to the technical field of pouring sealant preparation, in particular to a preparation method of antibacterial epoxy resin pouring sealant, wherein a defoaming device used in the method comprises a tank body, a tank cover, an air pump, a partition plate and a controller; the lower end of the tank body is provided with a support leg, the bottom of the tank body is provided with a through hole, and the inner side of the tank body is connected with a partition plate in a sliding manner; the lower end of the partition board is fixedly connected with an electric push rod; the electric push rod is fixed at the bottom of the tank body; a first groove is formed in the side face of the partition plate; a sealing element is arranged in the first groove; a square box is arranged at the upper end of the partition plate; the defoaming device used in the preparation method of the antibacterial epoxy resin pouring sealant provided by the invention pushes the partition plate to slide along the inner side of the tank body through the electric push rod, so that the amount of air in the space inside the tank body is reduced, the time for pumping the air in the tank body by the air pump is reduced, the defoaming time of the component A is shortened, and the preparation efficiency of the antibacterial epoxy resin pouring sealant is improved.
Description
Technical Field
The invention relates to the technical field of pouring sealant preparation, in particular to a preparation method of an antibacterial epoxy resin pouring sealant.
Background
The epoxy resin pouring sealant is a type of epoxy resin liquid packaging or potting material which is prepared by taking epoxy resin as a main component, adding various functional auxiliaries and matching with a proper curing agent; the epoxy potting adhesive is mainly divided into two types according to different compositions, wherein one type is a single-component epoxy potting adhesive; one is a two-component epoxy pouring sealant; the main agent and the curing agent of the two-component pouring sealant are separately packaged and stored, AB mixing proportion is carried out according to a specific proportion before the main agent and the curing agent are used, the pouring operation can be carried out after the main agent and the curing agent are uniformly stirred, and the colloid can be vacuumized and defoamed before the pouring is carried out for better quality; however, in the vacuum defoaming process, the pouring sealant can be defoamed only after the air in the defoaming machine is completely evacuated, which consumes time and affects the preparation efficiency.
Some preparation methods of pouring sealant also appear in the prior art, for example, a patent with application number of cn201510815702.x discloses a preparation method of antibacterial epoxy resin pouring sealant, which comprises the following steps: 1. adding folium Ginkgo powder into ethanol solution, ultrasonic extracting, standing, and filtering to obtain folium Ginkgo extract; 2. adding diatomite and ginkgo leaf extract into a mixer to obtain a composite antibacterial agent; 3. mixing the mixed solution prepared from the composite antibacterial agent with an aluminate coupling agent to prepare a modified composite antibacterial agent; 4. adding the epoxy resin, the filler and the modified composite antibacterial agent into a stirring kettle, stirring, and defoaming in vacuum to obtain a component A; 5. adding the curing agent and the accelerant into a stirring kettle, stirring, and defoaming in vacuum to obtain a component B; 6. uniformly mixing the component A and the component B to obtain the antibacterial epoxy resin pouring sealant; the pouring sealant prepared by the scheme has good antibacterial performance, but the technical scheme still needs to pump air in a deaerator away before deaerating the pouring sealant in vacuum deaeration, so that the limitation of the scheme is caused.
In view of this, in order to overcome the above technical problems, the present applicant has designed and developed a method for preparing an antibacterial epoxy resin potting adhesive, and a special defoaming device is adopted to solve the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the defoaming device used in the preparation method of the antibacterial epoxy resin pouring sealant provided by the invention pushes the partition plate to slide along the inner side of the tank body through the electric push rod, so that the amount of air in the space inside the tank body is reduced, the time for pumping the air in the tank body by the air pump is reduced, the defoaming time of the component A is shortened, and the preparation efficiency of the antibacterial epoxy resin pouring sealant is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the preparation method of the antibacterial epoxy resin pouring sealant comprises the following steps:
s1: preparing an antibacterial agent: taking out the root of ginkgo leaf and dust, drying in the sun to prepare ginkgo leaf powder, adding ethanol accounting for 70-85% of the mass of the ginkgo leaf powder, stirring uniformly, standing for 3-4 hours, taking out supernatant, filtering and concentrating the supernatant to prepare ginkgo leaf extract, pouring the ginkgo leaf extract into a reaction tank, adding 30-35% of diatomite, 5-10% of aluminate coupling agent and 30-40% of deionized water in the mass of the ginkgo leaf extract into the reaction tank, stirring the materials in the reaction tank, heating to 60-70 ℃, filtering again and drying to prepare the antibacterial agent; the ginkgo leaf extract contains a plurality of chemical components, has good antibacterial activity to a plurality of strains, improves the thermal stability and heat resistance of the antibacterial agent by adding diatomite, and improves the compatibility of the antibacterial agent by adding an aluminate coupling agent;
s2: preparing a component A: adding 3-4 parts of an antibacterial agent, 40-50 parts of epoxy resin, 50-60 parts of quartz powder, 7-10 parts of a toughening agent and 4-7 parts of a diluent into a stirring kettle, stirring for 3-5 hours to prepare a component A, putting the component A into a square box in a defoaming device, starting a controller to control an electric push rod to push a partition plate to slide along the inner side of a tank body until the upper end of the square box is close to the lower end of a tank cover, tightly covering the upper end of the tank body with the tank cover, starting an air pump to pump air in the tank body out, and pumping out the air in the component A to ensure that the component A is defoamed; the partition plate is pushed by the electric push rod to slide along the inner side of the tank body, so that the amount of air in the space inside the tank body is reduced, the time for pumping the air in the tank body by the air pump is reduced, the defoaming time of the component A is shortened, and the preparation efficiency of the antibacterial epoxy resin pouring sealant is improved;
s3: preparing a component B: adding 30-40 parts of curing agent and 1 part of accelerator into a stirring tank, controlling the temperature of the stirring tank to be 50-60 ℃, and stirring for 1-2 hours to obtain a component B; the activity of the curing agent is improved by controlling the temperature and the stirring time of the stirring tank, so that the curing agent can be better mixed with the accelerator;
s4: mixing and forming: mixing the component A and the component B according to the mass ratio of 3: 1, adding the mixture into a stirring cylinder, controlling the temperature of the stirring cylinder to be 45-50 ℃, keeping ventilation, and stirring for 0.5-1 hour to prepare the antibacterial epoxy resin pouring sealant; the component A and the component B are respectively stored before the antibacterial epoxy resin pouring sealant is used, and are stirred and mixed when the antibacterial epoxy resin pouring sealant is used, so that the storage period of the antibacterial epoxy resin pouring sealant is prolonged;
the defoaming device used in the S2 comprises a tank body, a tank cover, an air pump, a partition plate and a controller; the lower end of the tank body is provided with a support leg, the bottom of the tank body is provided with a through hole, and the inner side of the tank body is connected with a partition plate in a sliding manner; the lower end of the partition board is fixedly connected with an electric push rod; the electric push rod is fixed at the bottom of the tank body; a first groove is formed in the side face of the partition plate; a sealing element is arranged in the first groove; a square box is arranged at the upper end of the partition plate; a tank cover is arranged at the upper end of the tank body; the tank cover is communicated with an air pipe; the other end of the air pipe is connected with an air pump; the tank cover is also communicated with a pressure gauge; the controller is used for controlling the defoaming device to automatically operate; when the defoaming device is used, workers need to completely evacuate air in the tank body to defoam the component A, the process is time-consuming, and the working efficiency is influenced; therefore, the working personnel firstly cover the tank cover at the upper end of the tank body, start the air pump, pump out the air in the tank body through the air pipe, when the value of the pressure gauge is 0.1MPa, close the air pump, observe the pressure of the pressure gauge and the pressure drop within 1 minute must not exceed 0.01MPa, so the defoaming device is qualified, then start the air pump, fill the air in the tank body, open the tank cover, then put the component A into the square box, place the square box at the upper end of the clapboard; the controller is started to control the electric push rod to extend, so that the partition plate is pushed to slide along the inner side of the tank body, the square box is further pushed to move up and down until the upper end of the square box is close to the lower end of the tank cover, the controller controls the electric push rod to stop working at the moment, the tank cover is covered on the upper end of the tank body, the air pump is started again to carry out vacuum defoaming on the component A, and due to the fact that the through hole is formed in the bottom of the tank body, the air pressure at the lower end of the partition plate is consistent with the external air pressure, the resistance of the partition plate in movement is reduced, and due to the fact that the sealing piece; according to the invention, the electric push rod pushes the partition plate to slide along the inner side of the tank body, so that the amount of air in the space inside the tank body is reduced, the time for the air pump to pump the air inside the tank body is reduced, the defoaming time of the component A is shortened, and the preparation efficiency of the antibacterial epoxy resin pouring sealant is improved.
Preferably, a through hole is formed in the center of the tank cover; an air bag is arranged in the through hole; the air bag is cylindrical in an inflated state; when the defoaming device is used for defoaming the component A, the bubbles in the component A are firstly broken, and then the air in the bubbles can be absorbed by the air pump; therefore, the air pump is started by the worker to pump air, the air bag is cylindrical under the action of atmospheric pressure, the end part of the air bag touches the upper end of the component A, air in the component A is attached to the upper end of the component A in a bubble shape, the air bubbles touch the end part of the air bag and are quickly broken, and the air in the air bubbles is quickly absorbed by the air pump; the air bag provided by the invention punctures the air bubbles on the component A through the end part of the air bag, so that the air in the air bubbles is quickly absorbed by the air pump, and the defoaming efficiency of the defoaming device on the component A is improved.
Preferably, the end part of the air bag is communicated with a group of conical bags; the number of the conical bags is at least three, and the end part of each conical bag is fixedly connected with a round bar; when in use, the air bubbles at the bottom of the component A can move to the upper end of the component A only by overcoming the stress in the component A, so as to contact with the end part of the air bag and break, and the process is long; therefore, when the worker controls the air pump to pump air from the inside of the tank body, the end part of the air bag is communicated with the group of conical belts, so that the conical belts can extrude the component A in the square box, the component A in the middle of the square box is extruded to the periphery, the component A at the bottom of the square box is exposed, and meanwhile, the end part of the conical bag is fixedly connected with the round bar, so that the conical bag can pull the round bar to be poked into the component A; the air bag provided by the invention extrudes the component A through the conical bag on the end part of the air bag, so that the component A at the bottom of the square box is exposed, and the defoaming efficiency of the component A at the bottom of the square box is improved.
Preferably, four bumps are uniformly distributed on the outer side surface of the square box; the lower end of each bump is provided with a sliding chute, and a rack is connected in each sliding chute in a sliding manner; a motor is arranged inside each bump; a gear is arranged on a shaft of each motor; each gear is meshed with the corresponding rack; when the square box is used, the component A at the inner corner of the square box is accumulated, and the defoaming efficiency is low under the action of the air pump; therefore, in the invention, a worker starts a controller to control one of the motors to rotate so as to drive one of the gears to rotate, and each gear is meshed with the corresponding rack, so that one of the gears can control the corresponding rack to slide along the sliding groove, the lower end of the rack can be propped against the partition plate, one side of the square box is propped up, the square box is inclined, the component A at the corner of the side of the square box can be exposed, the component A at the position can be defoamed better, after the component A at the position is defoamed, the component A at the other three positions in the square box can be exposed by the same method, the component A at the other three positions in the square box can be defoamed, and in the process of inclining the square box, the component A in the square box can be contacted with the round bar, so that the stirring effect is achieved, and the component A is defoamed more fully; according to the invention, the rack is controlled by the motor to slide along the sliding groove, so that the square box is inclined, the component A at the inner corner of the square box is exposed, and meanwhile, the component A is contacted with the round bar to form stirring, and further the defoaming efficiency of the component A is improved.
Preferably, the lower end of each rack is hinged with a suction cup; each sucker is provided with a step hole; a ball is arranged in each step hole, and a first spring is also arranged in each step hole; each ball is fixed at one end of the corresponding first spring; when the defoaming device is used, the motor controls one rack to slide along the sliding groove, and the lower end of the rack is in direct contact with the upper end of the partition plate, so that the friction force is small, the square box cannot be fixed at the upper end of the partition plate and is easy to collide with the inner side of the tank body, the finish degree of the inner side of the tank body is further influenced, the sealing performance of the partition plate and the inner side of the tank body is influenced, and the defoaming device fails; therefore, the suction cup is hinged at the lower end of the rack by a worker, air in the inner space of the suction cup is squeezed out through the force of the rack on the suction cup, the air pump is used for pumping out the air in the tank body, the suction cup is adsorbed at the upper end of the partition plate, the stability of the square box in the inclination process is realized, after defoaming is completed, the air pump is used for inflating the inner part of the tank body, the air can push the ball open, so that the air enters the inner space of the suction cup, pressure relief of the inner space of the suction cup is completed, and the square box is better taken out; the force of the rack on the sucker is matched with the air pump, so that the square box is fixed at the upper end of the partition plate, the stability of the defoaming device is realized, the pressure relief of the inner space of the sucker is realized through the elastic matching of the air pump, the ball and the first spring, and the square box is convenient to take out quickly.
Preferably, the outer side surface of the square box is hinged with a round rod; the end part of the round rod is fixedly connected with a cylindrical block; one end of the cylindrical block is provided with a second groove; the second groove is connected with the knocking rod in a sliding mode, and a second spring is arranged in the second groove; one end of the second spring is connected to the bottom of the second groove, and the other end of the second spring is connected with the knocking rod; when the component A is defoamed by the defoaming device, the end part of the air bag can puncture the air bubbles, but the air bubbles around the square box can not contact the air bag, so that the air bubbles generated around the square box can be broken only under the action of the air pump; therefore, the working personnel can control one of the racks to slide along the sliding groove through the motor, so that the square box is inclined, the round rod is driven to shake, the end part of the round rod is fixedly connected with the cylindrical block, the cylindrical block can control the knocking rod to impact the square box, and the second spring is arranged in the second groove, so that the second spring generates elasticity for the knocking rod, the knocking rod can knock the square box back and forth, the square box can vibrate, and bubbles in the square box can be broken under the vibration effect; according to the invention, the square box is knocked to vibrate through the inclination of the square box and the matching of the knocking rod and the second spring, so that bubbles on the first component in the square box are cracked through vibration, and the defoaming efficiency of the defoaming device on the first component is improved.
The invention has the following beneficial effects:
1. the defoaming device used in the invention pushes the partition board to slide along the inner side of the tank body through the electric push rod, so that the air quantity of the space in the tank body is reduced, the time for the air pump to pump the air in the tank body is reduced, the defoaming time of the component A is shortened, and the preparation efficiency of the antibacterial epoxy resin pouring sealant is improved.
2. The defoaming device provided by the invention punctures the bubbles on the component A through the end part of the air bag, so that the air in the bubbles is quickly absorbed by the air pump, and the defoaming efficiency of the defoaming device on the component A is improved.
3. The defoaming device controls the rack to slide along the sliding groove through the motor, so that the square box is inclined, the component A at the inner corner of the square box is exposed, and meanwhile, the component A is in contact with the round bar to form stirring, and the defoaming efficiency of the component A is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a perspective view of the defoaming device of the present invention;
FIG. 3 is a perspective view of the component structure of the defoaming device;
FIG. 4 is an enlarged view at A in FIG. 3;
FIG. 5 is a view showing the inner structure of a bump of the defoaming device of the present invention;
FIG. 6 is an enlarged view at B in FIG. 5;
FIG. 7 is a view showing the structure of an air bag and a cone bag of the defoaming device according to the present invention;
FIG. 8 is an internal structure view of a cylindrical block of the defoaming apparatus of the present invention;
in the figure: the air pump comprises a tank body 1, support legs 11, a through hole 12, a tank cover 2, a through hole 21, an air pump 3, a partition plate 4, an electric push rod 5, a sealing piece 6, a square box 7, an air pipe 8, a pressure gauge 9, an air bag 10, a conical bag 13, a round rod 14, a convex block 15, a sliding groove 151, a rack 16, a motor 17, a gear 18, a sucking disc 19, a stepped hole 191, a round ball 192, a first spring 193, a round rod 20, a cylindrical block 22, a second groove 221, a knocking rod 23 and a second spring 24.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 8, the preparation method of the antibacterial epoxy resin pouring sealant of the present invention comprises the following steps:
s1: preparing an antibacterial agent: taking out the root of ginkgo leaf and dust, drying in the sun to prepare ginkgo leaf powder, adding ethanol accounting for 70-85% of the mass of the ginkgo leaf powder, stirring uniformly, standing for 3-4 hours, taking out supernatant, filtering and concentrating the supernatant to prepare ginkgo leaf extract, pouring the ginkgo leaf extract into a reaction tank, adding 30-35% of diatomite, 5-10% of aluminate coupling agent and 30-40% of deionized water in the mass of the ginkgo leaf extract into the reaction tank, stirring the materials in the reaction tank, heating to 60-70 ℃, filtering again and drying to prepare the antibacterial agent; the ginkgo leaf extract contains a plurality of chemical components, has good antibacterial activity to a plurality of strains, improves the thermal stability and heat resistance of the antibacterial agent by adding diatomite, and improves the compatibility of the antibacterial agent by adding an aluminate coupling agent;
s2: preparing a component A: 3-4 parts of an antibacterial agent, 40-50 parts of epoxy resin, 50-60 parts of quartz powder, 7-10 parts of a toughening agent and 4-7 parts of a diluent are added into a stirring kettle and stirred for 3-5 hours to prepare a component A, the component A is placed into a square box 7 in a defoaming device, a controller is started to control an electric push rod 5 to push a partition plate 4 to slide along the inner side of a tank body 1 until the upper end of the square box 7 is close to the lower end of a tank cover 2, the tank cover 2 is tightly covered on the upper end of the tank body 1, and an air pump 3 is started to pump air in the tank body 1, so that the air in the component A is pumped out, and the component A is defoamed; the partition plate 4 is pushed by the electric push rod 5 to slide along the inner side of the tank body 1, so that the amount of air in the space inside the tank body 1 is reduced, the time for the air pump 3 to pump the air in the tank body 1 is shortened, the defoaming time of the component A is shortened, and the preparation efficiency of the antibacterial epoxy resin pouring sealant is improved;
s3: preparing a component B: adding 30-40 parts of curing agent and 1 part of accelerator into a stirring tank, controlling the temperature of the stirring tank to be 50-60 ℃, and stirring for 1-2 hours to obtain a component B; the activity of the curing agent is improved by controlling the temperature and the stirring time of the stirring tank, so that the curing agent can be better mixed with the accelerator;
s4: mixing and forming: mixing the component A and the component B according to the mass ratio of 3: 1, adding the mixture into a stirring cylinder, controlling the temperature of the stirring cylinder to be 45-50 ℃, keeping ventilation, and stirring for 0.5-1 hour to prepare the antibacterial epoxy resin pouring sealant; the component A and the component B are respectively stored before the antibacterial epoxy resin pouring sealant is used, and are stirred and mixed when the antibacterial epoxy resin pouring sealant is used, so that the storage period of the antibacterial epoxy resin pouring sealant is prolonged;
the defoaming device used in the step S2 comprises a tank body 1, a tank cover 2, an air pump 3, a partition plate 4 and a controller; the lower end of the tank body 1 is provided with a support leg 11, the bottom of the tank body 1 is provided with a through hole 12, and the inner side of the tank body 1 is connected with a partition plate 4 in a sliding way; the lower end of the partition plate 4 is fixedly connected with an electric push rod 5; the electric push rod 5 is fixed at the bottom of the tank body 1; a first groove is formed in the side face of the partition plate 4; a sealing element 6 is arranged in the first groove; a square box 7 is arranged at the upper end of the partition plate 4; the upper end of the tank body 1 is provided with a tank cover 2; the tank cover 2 is communicated with an air pipe 8; the other end of the air pipe 8 is connected with an air pump 3; the tank cover 2 is also communicated with a pressure gauge 9; the controller is used for controlling the defoaming device to automatically operate; when the defoaming device is used, workers can defoam the component A only by completely evacuating the air in the tank body 1, the process is time-consuming, and the working efficiency is influenced; therefore, the working personnel firstly cover the tank cover 2 on the upper end of the tank body 1, start the air pump 3, pump out the air in the tank body through the air pipe 8, when the value of the pressure gauge 9 is 0.1MPa, close the air pump 3, observe the pressure of the pressure gauge 9 and the pressure drop within 1 minute must not exceed 0.01MPa, so the defoaming device is qualified, then start the air pump 3, fill the tank body 1 with air, open the tank cover 2, then put the component A into the square box 7, place the square box 7 on the upper end of the clapboard 4; the controller is started to control the electric push rod 5 to extend, so that the partition plate 4 is pushed to slide along the inner side of the tank body 1, the square box 7 is further pushed to move up and down until the upper end of the square box 7 is close to the lower end of the tank cover 2, at the moment, the controller controls the electric push rod 5 to stop working, the tank cover 2 is covered on the upper end of the tank body 1, the air pump 3 is started again to carry out vacuum defoaming on the component A, the air pressure at the lower end of the partition plate 4 is consistent with the external air pressure due to the fact that the through hole 12 is formed in the bottom of the tank body 1, the resistance of the partition plate 4 in movement is reduced, and the sealing piece 6 is installed in the first groove, so that; according to the invention, the electric push rod 5 pushes the partition plate 4 to slide along the inner side of the tank body 1, so that the amount of air in the space inside the tank body 1 is reduced, the time for the air pump 3 to pump the air in the tank body 1 is reduced, the defoaming time of the component A is shortened, and the preparation efficiency of the antibacterial epoxy resin pouring sealant is improved.
As an embodiment of the present invention, the center of the can cover 2 is provided with a through hole 21; an air bag 10 is arranged in the through hole 21; the airbag 10 is cylindrical in an inflated state; when the air pump is used, when the defoaming device defoams the component A, the air bubbles in the component A are firstly broken, and then the air in the air bubbles can be absorbed by the air pump 3; therefore, the air pump 3 is started by the staff to pump air, the air bag 10 is cylindrical under the action of atmospheric pressure, the end part of the air bag 10 touches the upper end of the component A, air in the component A is attached to the upper end of the component A in a bubble shape, the air bubbles touch the end part of the air bag 10 and are rapidly broken, and the air in the air bubbles is rapidly absorbed by the air pump 3.
In one embodiment of the present invention, a set of conical pockets 13 is connected to the end of the air bag 10; the number of the conical bags 13 is at least three, and the end part of each conical bag 13 is fixedly connected with a round bar 14; when in use, the air bubbles at the bottom of the component A can move to the upper end of the component A by overcoming the stress in the component A, so as to contact with the end part of the air bag 10 to be broken, and the process is long; therefore, when the worker controls the air pump 3 to pump air into the tank body 1, the end part of the air bag 10 is communicated with a group of conical belts, so that the conical belts can extrude the component A in the square box 7, the component A in the middle of the square box 7 is extruded to the periphery, the component A at the bottom of the square box 7 is exposed, meanwhile, the end part of the conical bag 13 is fixedly connected with the round bar 14, and the conical bag 13 can pull the round bar 14 to poke into the component A.
As an embodiment of the present invention, four bumps 15 are uniformly distributed on the outer side surface of the square box 7; the lower end of each lug 15 is provided with a sliding groove 151, and a rack 16 is connected in each sliding groove 151 in a sliding manner; a motor 17 is arranged inside each lug 15; a gear 18 is arranged on the shaft of each motor 17; each of the gears 18 is engaged with its corresponding rack 16; when in use, the component A at the inner corner of the square box 7 is accumulated, and the defoaming efficiency is low under the action of the air pump 3; therefore, the operator of the present invention starts the controller to control one of the motors 17 to rotate, so as to drive one of the gears 18 to rotate, because each gear 18 is meshed with the corresponding rack 16, one of the gears 18 will control the corresponding rack 16 to slide along the sliding slot 151, the lower end of the rack 16 will be pressed against the partition plate 4, so as to press up one side of the square box 7, further, the square box 7 is inclined, the A component at the edge of the side of the square box 7 is exposed, so that the A component at the position is better defoamed, after the component A is defoamed, the component A at the other three positions in the square box 7 is exposed by the same method, so that the component A at the other three positions is defoamed, in the process of the square box 7 inclining, the component A in the square box 7 is contacted with the round bar 14, so that the stirring effect is achieved, and the component A is defoamed more fully.
In one embodiment of the present invention, a suction cup 19 is hinged to the lower end of each rack 16; each sucking disc 19 is provided with a step hole 191; a ball 192 is arranged in each stepped hole 191, and a first spring 193 is also arranged in each stepped hole 191; each of the balls 192 is fixed to one end of a corresponding first spring 193; when the defoaming device is used, the motor 17 controls one of the racks 16 to slide along the sliding groove 151, and the lower end of the rack 16 is in direct contact with the upper end of the partition plate 4, so that the friction force is small, the square box 7 cannot be fixed at the upper end of the partition plate 4 and is easy to collide with the inner side of the tank body 1, the finish degree of the inner side of the tank body 1 is further influenced, the sealing property of the partition plate 4 and the inner side of the tank body 1 is influenced, and the defoaming device fails; therefore, the suction cup 19 is hinged at the lower end of the rack 16 by the worker, air in the inner space of the suction cup 19 is squeezed out through the force of the rack 16 on the suction cup 19, the air pump 3 pumps the air in the tank body 1, and the suction cup 19 is adsorbed at the upper end of the partition plate 4, so that the stability of the square box 7 in the inclination process is realized, after defoaming is completed, the air pump 3 inflates the inner part of the tank body 1, the round ball 192 is pushed open by the air, the air enters the inner space of the suction cup 19, pressure relief of the inner space of the suction cup 19 is completed, and the square box 7 is better taken out.
As an embodiment of the invention, the outer side of the square box 7 is hinged with a round rod 20; the end part of the round rod 20 is fixedly connected with a cylindrical block 22; one end of the cylindrical block 22 is provided with a second groove 221; the knocking rod 23 is connected in the second groove 221 in a sliding mode, and a second spring 24 is arranged in the second groove 221; one end of the second spring 24 is connected to the bottom of the second groove 221, and the other end of the second spring is connected with the knocking rod 23; when the defoaming device is used for defoaming the component A, the end part of the air bag 10 can puncture the air bubbles, but the air bag 10 of the air bubbles around the square box 7 can not be contacted, so the air bubbles generated around the square box 7 can be broken only by the action of the air pump 3; therefore, according to the invention, a worker controls one of the racks 16 to slide along the sliding groove 151 through the motor 17, so that the square box 7 inclines, the round rod 20 is driven to shake, the cylindrical block 22 is fixedly connected with the end part of the round rod 20, the cylindrical block 22 can control the knocking rod 23 to impact the square box 7, and the second spring 24 is arranged in the second groove 221, so that the second spring 24 generates elastic force on the knocking rod 23, the knocking rod 23 can knock the square box 7 back and forth, the square box 7 can vibrate, and bubbles in the square box 7 can break under the vibration effect.
When the defoaming device is used, a worker firstly covers the tank cover 2 at the upper end of the tank body 1, starts the air pump 3, pumps out air in the tank body through the air pipe 8, closes the air pump 3 when the value of the pressure gauge 9 is 0.1MPa, observes that the pressure of the pressure gauge 9 is reduced within 1 minute and the pressure is not more than 0.01MPa, so the defoaming device is qualified, then starts the air pump 3, fills the tank body 1 with air, opens the tank cover 2, then puts the component A into the square box 7, and places the square box 7 at the upper end of the partition plate 4; the controller is started to control the electric push rod 5 to extend, so that the partition plate 4 is pushed to slide along the inner side of the tank body 1, the square box 7 is further pushed to move up and down until the upper end of the square box 7 is close to the lower end of the tank cover 2, the controller controls the electric push rod 5 to stop working at the moment, the tank cover 2 covers the upper end of the tank body 1, the air pump 3 is started again to pump air, the air bag 10 is cylindrical under the action of atmospheric pressure, the end part of the air bag 10 touches the upper end of the component A, air in the component A is in a bubble shape and is attached to the upper end of the component A, the end part of the air bag 10 touched by the bubbles can be rapidly broken, and the air in the bubbles; the end part of the air bag 10 is communicated with a group of conical belts, so the conical belts can extrude the component A in the square box 7, the component A in the middle of the square box 7 is extruded to the periphery, the component A at the bottom of the square box 7 is exposed, and meanwhile, the end part of the conical bag 13 is fixedly connected with the round bar 14, so the conical bag 13 can pull the round bar 14 to be poked into the component A; the operator starts the controller again to control one of the motors 17 to rotate, so as to drive one of the gears 18 to rotate, because each gear 18 is meshed with the corresponding rack 16, one of the gears 18 can control the corresponding rack 16 to slide along the sliding groove 151, the lower end of the rack 16 is hinged with the sucker 19, air in the inner space of the sucker 19 is squeezed out through the force of the rack 16 on the sucker 19, the air pump 3 pumps air in the tank body 1, the sucker 19 is adsorbed at the upper end of the partition plate 4, the stability of the square box 7 in the tilting process is realized, one side of the square box 7 is jacked up, the square box 7 is tilted, the component A at the corner of the side of the square box 7 can be exposed, so that the component A at the position can be defoamed better, after the component A at the position is defoamed, the component A at the other three positions in the square box 7 can be exposed through the same method, the other three parts of the component A are defoamed, and in the process that the square box 7 is inclined, the component A in the square box 7 is contacted with the round bar 14, so that the stirring effect is achieved, and the component A is defoamed more fully; the round rod 20 is driven to shake when the square box 7 inclines, the end part of the round rod 20 is fixedly connected with the cylindrical block 22, so that the cylindrical block 22 can control the knocking rod 23 to impact the square box 7, and the second spring 24 is arranged in the second groove 221, so that the second spring 24 can generate elasticity for the knocking rod 23, the knocking rod 23 can knock the square box 7 back and forth, the square box 7 can vibrate, and bubbles in the square box 7 can break under the vibration effect; because the bottom of the tank body 1 is provided with the through hole 12, the air pressure at the lower end of the partition plate 4 is kept consistent with the external air pressure, the resistance of the movement of the partition plate 4 is reduced, and because the sealing element 6 is arranged in the first groove, the sealing performance between the partition plate 4 and the inner side of the tank body 1 can be kept when the partition plate 4 moves; after the deaeration is completed, the air pump 3 inflates the inside of the tank body 1, and the air pushes the round ball 192 open, so that the round ball enters the inner space of the suction cup 19, the pressure relief of the inner space of the suction cup 19 is completed, and the square box 7 is better taken out.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A preparation method of antibacterial epoxy resin pouring sealant is characterized by comprising the following steps: the method comprises the following steps:
s1: preparing an antibacterial agent: taking out the root of ginkgo leaf and dust, drying in the sun to prepare ginkgo leaf powder, adding ethanol accounting for 70-85% of the mass of the ginkgo leaf powder, stirring uniformly, standing for 3-4 hours, taking out supernatant, filtering and concentrating the supernatant to prepare ginkgo leaf extract, pouring the ginkgo leaf extract into a reaction tank, adding 30-35% of diatomite, 5-10% of aluminate coupling agent and 30-40% of deionized water in the mass of the ginkgo leaf extract into the reaction tank, stirring the materials in the reaction tank, heating to 60-70 ℃, filtering again and drying to prepare the antibacterial agent;
s2: preparing a component A: adding 3-4 parts of an antibacterial agent, 40-50 parts of epoxy resin, 50-60 parts of quartz powder, 7-10 parts of a toughening agent and 4-7 parts of a diluent into a stirring kettle, stirring for 3-5 hours to prepare a component A, putting the component A into a square box (7) in a defoaming device, starting a controller to control an electric push rod (5) to push a partition plate (4) to slide along the inner side of a tank body (1) until the upper end of the square box (7) is close to the lower end of a tank cover (2), tightly covering the upper end of the tank cover (1) with the tank cover (2), starting an air pump (3) to pump air in the tank body (1), and further pumping the air in the component A to ensure that the component A is defoamed;
s3: preparing a component B: adding 30-40 parts of curing agent and 1 part of accelerator into a stirring tank, controlling the temperature of the stirring tank to be 50-60 ℃, and stirring for 1-2 hours to obtain a component B;
s4: mixing and forming: mixing the component A and the component B according to the mass ratio of 3: 1, adding the mixture into a stirring cylinder, controlling the temperature of the stirring cylinder to be 45-50 ℃, keeping ventilation, and stirring for 0.5-1 hour to prepare the antibacterial epoxy resin pouring sealant;
the defoaming device used in the S2 comprises a tank body (1), a tank cover (2), an air pump (3), a partition board (4) and a controller; the lower end of the tank body (1) is provided with a support leg (11), the bottom of the tank body (1) is provided with a through hole (12), and the inner side of the tank body (1) is connected with a partition plate (4) in a sliding manner; the lower end of the partition plate (4) is fixedly connected with an electric push rod (5); the electric push rod (5) is fixed at the bottom of the tank body (1); a first groove is formed in the side face of the partition plate (4); a sealing element (6) is arranged in the first groove; a square box (7) is arranged at the upper end of the partition plate (4); the upper end of the tank body (1) is provided with a tank cover (2); the tank cover (2) is communicated with an air pipe (8); the other end of the air pipe (8) is connected with an air pump (3); the tank cover (2) is also communicated with a pressure gauge (9); the controller is used for controlling the automatic operation of the defoaming device.
2. The preparation method of the antibacterial epoxy resin pouring sealant as claimed in claim 1, wherein the preparation method comprises the following steps: a through hole (21) is formed in the center of the tank cover (2); an air bag (10) is arranged in the through hole (21); the airbag (10) is cylindrical in the inflated state.
3. The preparation method of the antibacterial epoxy resin pouring sealant as claimed in claim 2, characterized in that: the end part of the air bag (10) is communicated with a group of conical bags (13); the number of the conical bags (13) is at least three, and the end part of each conical bag (13) is fixedly connected with a round bar (14).
4. The preparation method of the antibacterial epoxy resin pouring sealant as claimed in claim 1, wherein the preparation method comprises the following steps: four lugs (15) are uniformly distributed on the outer side surface of the square box (7); the lower end of each bump (15) is provided with a sliding chute (151), and each sliding chute (151) is connected with a rack (16) in a sliding manner; a motor (17) is arranged inside each lug (15); a gear (18) is arranged on the shaft of each motor (17); each gear (18) is engaged with its corresponding rack (16).
5. The preparation method of the antibacterial epoxy resin pouring sealant as claimed in claim 4, wherein the preparation method comprises the following steps: the lower end of each rack (16) is hinged with a suction cup (19); each sucker (19) is provided with a step hole (191); a round ball (192) is arranged in each stepped hole (191), and a first spring (193) is also arranged in each stepped hole (191); each round ball (192) is fixed at one end of the corresponding first spring (193).
6. The preparation method of the antibacterial epoxy resin pouring sealant as claimed in claim 4, wherein the preparation method comprises the following steps: the outer side surface of the square box (7) is hinged with a round rod (20); the end part of the round rod (20) is fixedly connected with a cylindrical block (22); one end of the cylindrical block (22) is provided with a second groove (221); the knocking rod (23) is connected in the second groove (221) in a sliding mode, and a second spring (24) is arranged in the second groove (221); one end of the second spring (24) is connected to the bottom of the second groove (221), and the other end of the second spring is connected with the knocking rod (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010605727.8A CN111675991A (en) | 2020-06-29 | 2020-06-29 | Preparation method of antibacterial epoxy resin pouring sealant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605727.8A CN111675991A (en) | 2020-06-29 | 2020-06-29 | Preparation method of antibacterial epoxy resin pouring sealant |
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| CN111675991A true CN111675991A (en) | 2020-09-18 |
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| CN202010605727.8A Withdrawn CN111675991A (en) | 2020-06-29 | 2020-06-29 | Preparation method of antibacterial epoxy resin pouring sealant |
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| CN114146604A (en) * | 2021-12-01 | 2022-03-08 | 赵学利 | Epoxy resin sealant and preparation method thereof |
| CN114712898A (en) * | 2022-04-11 | 2022-07-08 | 湖南继兴科技有限公司 | Defoaming device for producing single-component epoxy resin adhesive |
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Application publication date: 20200918 |