CN111875926A - Epoxy resin film - Google Patents
Epoxy resin film Download PDFInfo
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- CN111875926A CN111875926A CN202010611496.1A CN202010611496A CN111875926A CN 111875926 A CN111875926 A CN 111875926A CN 202010611496 A CN202010611496 A CN 202010611496A CN 111875926 A CN111875926 A CN 111875926A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2415/00—Characterised by the use of rubber derivatives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2427/06—Homopolymers or copolymers of vinyl chloride
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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Abstract
The invention belongs to the technical field of epoxy resin films, and particularly relates to an epoxy resin film which is prepared from the following raw materials in parts by weight: 40-60 parts of E-44 epoxy resin, 30-50 parts of hydrogenated nitrile rubber, 3-5 parts of inorganic mixed filler, 6-10 parts of phospholipid molecular solution, 2.5-5 parts of curing agent and 6.5-7-10 parts of polyvinyl chloride paste resin; adding a mixture of E-44 epoxy resin, hydrogenated nitrile rubber, a curing agent and polyvinyl chloride paste resin into an acetone solution to obtain a blended solution; adding a phospholipid molecular solution and an inorganic mixed filler into the blending solution to obtain a uniformly dispersed solution; according to the invention, by arranging the roller, the back-and-forth rotation of the roller can drive the two ends of the flattening tank body to move upwards and sink intermittently through the pull rope, so that the epoxy resin solution can be uniformly and efficiently spread in the flattening tank body to achieve a self-leveling state, the vibration exciter is arranged at the bottom of the flattening tank body, the vibration exciter enables the bottom of the flattening tank body to be in a vibration state, and the epoxy resin solution is more uniformly spread.
Description
Technical Field
The invention belongs to the technical field of epoxy resin films, and particularly relates to an epoxy resin film.
Background
The epoxy resin is a generic name of a polymer having two or more epoxy groups in a molecule. It is a polycondensation product of epichlorohydrin and bisphenol A or a polyol. Because of the chemical activity of the epoxy group, the epoxy group can be opened by a plurality of compounds containing active hydrogen, and the epoxy group is cured and crosslinked to form a network structure, so that the epoxy group is a thermosetting resin. The bisphenol A epoxy resin has the largest yield and the most complete variety, and the new modified variety is continuously increased and the quality is continuously improved.
For the modification of epoxy resin, a plurality of documents are available at home and abroad, and CN20031011182 discloses a flexible thermosetting adhesive film and a preparation method thereof, wherein the adhesive film mainly takes epoxy resin as a theme, the nitrile rubber toughens and the aromatic amine curing agent is cured, although the five nitrile rubber modified epoxy resins can obtain better toughening effect, the adhesive has general cohesiveness, low strength and high cost, and the aromatic amine curing agent has large irritation and toxicity and is unsafe to produce; meanwhile, the epoxy resin in the prior art has poor heat resistance, chemical corrosion resistance, wear resistance and other properties; and when carrying out epoxy resin film's preparation, need flatten epoxy resin solution in the mould, the mode that prior art adopted artifical use scraper blade to strickle off mostly, it is not good not only to scrap off the effect simultaneously hard, and can not control epoxy resin film's thickness.
Disclosure of Invention
The invention provides an epoxy resin film, which aims to make up the defects of the prior art, solve the problems that the epoxy resin film in the prior art is general in cohesiveness and low in strength, poor in heat resistance, chemical corrosion resistance, wear resistance and other performances, and poor in artificial film scraping effect and difficult to control the thickness of the scraped film during preparation of the epoxy resin film.
The technical scheme adopted by the invention for solving the technical problems is as follows: the epoxy resin film is prepared from the following raw materials in parts by weight:
40-60 parts of E-44 epoxy resin, 30-50 parts of hydrogenated nitrile rubber, 3-5 parts of inorganic mixed filler, 6-10 parts of phospholipid molecular solution, 2.5-5 parts of curing agent and 6.5-7-10 parts of polyvinyl chloride paste resin;
the preparation method of the epoxy resin film comprises the following steps:
s1, adding a mixture of E-44 epoxy resin, hydrogenated nitrile rubber, a curing agent and polyvinyl chloride paste resin into an acetone solution to obtain a blended solution; the E-44 epoxy resin has good fluidity, is easy to mix with auxiliary materials, is convenient to form and process, has good dimensional stability after being cured, has the shrinkage rate of less than 2 percent, is the resin with the minimum shrinkage rate of thermosetting resin, has the thermal expansion coefficient of 6-10.5 percent, excellent bonding performance and good electrical insulation performance, mechanical performance and chemical stability; the hydrogenated nitrile rubber has good heat resistance, excellent chemical corrosion resistance and compression permanent deformation resistance due to the highly saturated structure of the hydrogenated nitrile rubber, and has the advantages of high strength, high tearing performance, high wear resistance and the like, so that the performance of the epoxy resin film can be improved; the polyvinyl chloride paste resin is in a powder structure, and can improve the ductility, the shaping and the heat resistance of the polyurethane film;
s2, adding the phospholipid molecular solution and the inorganic mixed filler into the blended solution in the S1, and stirring for 15-20min in a constant-temperature stirrer, wherein the temperature is kept at 40-50 ℃ to obtain a uniformly dispersed solution; the phospholipid molecular solution is a surfactant which has two opposite properties of lipophilicity and hydrophilcity in a molecule, can be used as a dispersing agent of colloid, enables the colloidal solution to be uniformly and stably dispersed, is not easy to generate phenomena of sedimentation, segregation and the like, increases the fluidity of the colloid, and is beneficial to the subsequent flattening of the epoxy resin solution;
s3, placing the demolding paper in a leveling groove body on a leveling device, starting a driving motor, pouring the dispersion solution obtained in the step S2 into the leveling groove body three times, keeping the temperature of the leveling groove body at 35-40 ℃, enabling the dispersion solution to be uniformly dispersed in the leveling groove body to reach a self-leveling state, and scraping the leveling film layer in the leveling groove body by using a scraper at the moment to keep the thickness of the film layer at 50-150 microns;
s4, taking the flattening tank body containing the film layer from the flattening device, and putting the tank body into a light-proof fume hood to volatilize for 12-36h for removing acetone, wherein the temperature in the fume hood is kept at 35-40 ℃, and the temperature is higher than the temperature to be beneficial to the volatilization of the acetone;
s5, taking the flattening tank out of the fume hood, and peeling the film layer from the flattening tank to obtain the epoxy resin film;
the flattening device in the S comprises a flattening groove body, a U-shaped mounting rod, a fixed pipe, a base, a U-shaped push rod, a scraper, a vertical movable rod and a roller; the flattening tank body is a rectangular tank body-shaped structure with an opening at one side; an electric heating plate is arranged at the bottom of the flattening tank body; the opening of the flattening groove body is movably hinged with a movable baffle through a torsion spring; a handle is arranged on the movable baffle; the tops of two side plates adjacent to the movable baffle on the flattening groove body are provided with T-shaped sliding rails; the T-shaped sliding rail is connected with the T-shaped sliding block in a sliding manner; the top of the T-shaped sliding block is fixedly provided with a mounting pipe; two ends of the U-shaped push rod are respectively inserted into the two groups of mounting pipes; a scraping plate for scraping the film layer to a certain thickness is fixedly arranged at the bottom of the U-shaped push rod; the end part of the U-shaped push rod and the inside of the mounting pipe are provided with thickness adjusting mechanisms; the T-shaped sliding block is initially positioned at one end far away from the movable baffle, and a stop lever for limiting the movement of the T-shaped sliding block is arranged on one side, far away from the movable baffle, of the upper surface of the flattening groove body; the stop lever is movably hinged on the upper surface of the flattening groove body through a torsion spring; u-shaped mounting rods are fixedly arranged at two ends of the bottom of the flattening tank body; the U-shaped mounting rod is clamped in the elastic clamping piece at the top of the vertical movable rod; the elastic clamping pieces are uniformly arranged on the U-shaped mounting rod; the vertical movable rod is inserted in the fixed pipe; the bottom end of the fixed pipe is fixedly welded on the upper surface of the base; a convex rod fixedly arranged at the edge of the vertical movable rod is mutually connected with a vertical slide rail on the inner wall of the fixed pipe in a sliding way; the bottom of the convex rod is fixedly connected with the bottom of the vertical slide rail through a compression spring; a spring pin is arranged in the columnar groove at the end part of the convex rod; the inner wall of the vertical slide rail is provided with an arc-shaped clamping groove matched with the spring pin at a position close to the bottom end of the vertical slide rail; magnets are arranged inside the spring pin and at the bottom of the arc-shaped clamping groove, and the magnets inside the spring pin and the magnets inside the arc-shaped clamping groove attract each other; the bottom of the vertical movable rod is fixedly connected with one end of the pull rope; the other end of the pull rope penetrates through a fixed pulley at the bottom of the fixed pipe and penetrates out of the inner wall of the fixed pipe to be fixedly connected with the top edge of the roller; the roller is fixedly connected with a rotating shaft of the driving motor; the driving motor is fixedly arranged on the upper surface of the base; the bottom of the flattening tank body is provided with a plurality of groups of vibration exciters;
when the device works, the demoulding paper is placed in the flattening tank body on the flattening device, the driving motor is started, the driving motor drives the roller to rotate back and forth, when the roller rotates towards the direction of the movable baffle plate, the roller can wind the pull rope far away from one side of the movable baffle plate at the moment, and then the vertical movable rod is pulled downwards, so that the flattening tank body inclines towards one side, when the roller rotates towards one side far away from the movable baffle plate, the roller can wind the pull rope near one side of the movable baffle plate at the moment, the flattening tank body inclines towards the other side at the moment, the uniformly dispersed solution stirred in the stirrer is added into the flattening tank body in batches, thus the flattening tank body inclines back and forth under the acting force of the pull rope, the dispersed solution is uniformly spread in the flattening tank body, the self-leveling state is achieved, and the bottom of the flattening tank body is provided with a vibration exciter, the vibration exciter can increase the vibration at the bottom of the flattening groove body to discharge bubbles in the solution, so that the solution is distributed more uniformly in the flattening groove body, after the solution is paved, the driving motor and the power supply electrically connected with the electric heating plate are turned off, then the flattening groove body is pressed downwards, the spring pin at the end part of the convex rod is embedded into the arc-shaped clamping groove, at the moment, the magnet at the bottom of the arc-shaped clamping groove is mutually attracted with the magnet in the spring pin, and the clamping connection between the spring pin and the arc-shaped clamping groove is firmer; then, the stop lever is turned upwards to push the U-shaped push rod, so that the film layer is scraped to remove a part of the film layer by the scraper positioned at the bottom of the U-shaped push rod, the film layer is ensured within a certain thickness range, then the flattening groove body is lifted towards the upper end, the U-shaped mounting rod positioned at the bottom of the flattening groove body is separated from the inside of the elastic clamping piece, the flattening groove body is placed in the inside-h of a fume hood, acetone in the film layer is removed, and then the film layer is taken down from the inside of the flattening groove body to obtain the epoxy film.
Preferably, the inorganic mixed filler is formed by mixing nano montmorillonite and talcum powder, and the ratio of the nano montmorillonite to the talcum powder is as follows; when the epoxy resin coating is in work, the nano montmorillonite can greatly improve the properties of the epoxy resin film such as strength, elongation and the like, some properties can be improved by several times, and the talcum powder can improve the wear resistance and the skid resistance.
Preferably, the curing agent is a phenolic amino alcohol curing agent; the phenolic amino alcohol curing agent is obtained by modifying an amine curing agent, and is non-toxic and safe.
Preferably, a spring compression pipe is fixedly arranged at the bottom of the fixed pipe; the top of the spring compression pipe is provided with a light pressing plate; a pull rope fixedly connected with the vertical movable rod penetrates through the spring compression pipe; an arc-shaped groove is formed in the position, close to the hinge joint of the stop lever, of the upper surface of the flattening groove body; a spherical rubber air bag is fixedly arranged inside the arc-shaped groove; the spherical rubber air bag is fixedly connected with the bottom of a spring compression pipe in a fixed pipe below the spherical rubber air bag through an elastic hose; when the automatic spring-opening device works, after a dispersing solution is flattened, when a flattening groove body is pressed downwards, the vertical movable rod extrudes the spring compression pipe downwards, gas in the spring compression pipe is extruded and enters the inside of the spherical rubber air bag through the elastic hose, so that the spherical rubber air bag is expanded, the volume of the expanded spherical rubber air bag is increased, the stop lever is bounced upwards, the stop lever does not need to be manually pulled open again, the automatic spring-opening device is convenient to use, and the spherical rubber air bag is arranged at a position close to the hinged position of the stop lever, so that the stop lever is more easily jacked up.
Preferably, the thickness adjusting mechanism comprises a circular through hole and a movable pin; the circular through hole is positioned at the edge of the mounting pipe; the circular through holes are uniformly arranged from top to bottom on the edge of the mounting pipe; a movable pin is fixedly arranged in a columnar groove formed in the edge of the bottom end of the U-shaped push rod through a spring; the movable pin is matched with the circular through hole; during operation, the accessible presses the U-shaped push rod downwards for the activity round pin that is located the column recess carries out the joint with the circular through-hole of not co-altitude position department, and then can change the displacement between scraper blade and the shakeout cell body bottom, and then can carry out the adjustment of epoxy film thickness.
Preferably, a fixed circular plate is fixedly arranged at a position close to the outer port inside the circular through hole; the fixed circular plate is provided with a vent hole; a rubber diaphragm is fixedly arranged on the outer wall of the fixed circular plate at the outer port of the vent hole, and a fluorescent belt is adhered to the outer surface of the rubber diaphragm; the inner side wall of the fixed circular plate is fixedly connected with the movable circular plate through a compression spring; a columnar rubber air bag is fixedly arranged between the movable circular plate and the fixed circular plate, and a compression spring fixedly connected with the movable circular plate is positioned inside the columnar rubber air bag; the during operation, when the activity round pin block is in the inside of circular through-hole, the activity round pin can extrude the activity plectane in the circular through-hole this moment, and then with the inside gaseous extrusion of column rubber gasbag, gaseous vent on the fixed plectane of this moment and make the outside inflation of rubber diaphragm stretch out the outer port of circular through-hole, and the glue is equipped with the fluorescence area on the rubber diaphragm, and then can be clear see out which position of U-shaped push rod block at the installation pipe, alright know the scraper blade that this position corresponds and shakeout the displacement between the cell body bottom, just also know the film thickness of adjusting.
The invention has the following beneficial effects:
1. according to the epoxy resin film, the roller is arranged, the back-and-forth rotation of the roller can drive the two ends of the flattening tank body to move upwards and sink intermittently through the pull rope, so that the epoxy resin solution can be uniformly and efficiently spread in the flattening tank body to achieve a self-leveling state, the vibration exciter is arranged at the bottom of the flattening tank body, the vibration exciter enables the bottom of the flattening tank body to be in a vibration state, the epoxy resin solution is more uniformly spread, the epoxy resin film can be scraped to a certain thickness through the scraper, the situation that the manual spreading effect is poor, and the thickness of the scraped film cannot be controlled is avoided.
2. According to the epoxy resin film, the phospholipid molecular solution is added into the mixed solution, the phospholipid molecular solution is a surfactant which has two opposite properties of lipophilicity and hydrophily in a molecule, and can be used as a dispersing agent of colloid, so that the colloid solution is uniformly and stably dispersed and is not easy to settle, separate and the like, and the later-stage curing strength can be increased; and meanwhile, the fluidity of the colloid is increased, and the subsequent flattening and molding of the epoxy resin solution are facilitated.
3. According to the epoxy resin film, the thickness adjusting mechanism is arranged, so that the displacement between the bottom of the scraping plate and the flattening groove body can be adjusted, the thickness of the scraping film can be adjusted, when the movable pin in the thickness adjusting mechanism is clamped in the circular through hole, the movable pin can extrude the movable circular plate in the circular through hole, the columnar rubber air bag is extruded, the rubber diaphragm expands outwards to extend out of the outer port of the circular through hole, the U-shaped push rod can be clearly seen to be clamped at the position of the mounting pipe, the displacement between the scraping plate corresponding to the position and the bottom of the flattening groove body can be known, and the adjusted film forming thickness can be known.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a process for preparing an epoxy film;
FIG. 2 is a schematic view of a first configuration of the present invention;
FIG. 3 is a second schematic structural view of the present invention;
FIG. 4 is a schematic view showing the internal structure of the fixing tube of the present invention;
FIG. 5 is a schematic view of the internal structure of the installation tube of the present invention;
FIG. 6 is a schematic view showing the relative positions of the stopper rod and the spherical rubber bladder;
in the figure: the device comprises a flattening tank body 1, a vibration exciter 2, a U-shaped mounting rod 3, a fixed pipe 4, a base 5, a circular through hole 6, a U-shaped push rod 7, a stop lever 8, a scraper 9, a mounting pipe 10, an elastic hose 11, an elastic clamping piece 12, a vertical movable rod 13, a roller 14, a T-shaped slide rail 15, a movable baffle 16, a convex rod 17, a vertical slide rail 18, an arc-shaped clamping groove 19, a spring compression pipe 20, a spring pin 21, a vent hole 22, a movable circular plate 23, a fixed circular plate 24, a columnar rubber air bag 25, a spherical rubber air bag 26 and a movable pin 27.
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 6, the epoxy resin film of the present invention is prepared from the following raw materials by weight:
40-60 parts of E-44 epoxy resin, 30-50 parts of hydrogenated nitrile rubber, 3-5 parts of inorganic mixed filler, 6-10 parts of phospholipid molecular solution, 2.5-5 parts of curing agent and 6.5-7-10 parts of polyvinyl chloride paste resin;
the preparation method of the epoxy resin film comprises the following steps:
s1, adding a mixture of E-44 epoxy resin, hydrogenated nitrile rubber, a curing agent and polyvinyl chloride paste resin into an acetone solution to obtain a blended solution; the E-44 epoxy resin has good fluidity, is easy to mix with auxiliary materials, is convenient to form and process, has good dimensional stability after being cured, has the shrinkage rate of less than 2 percent, is the resin with the minimum shrinkage rate of thermosetting resin, has the thermal expansion coefficient of 6-10.5 percent, excellent bonding performance and good electrical insulation performance, mechanical performance and chemical stability; the hydrogenated nitrile rubber has good heat resistance, excellent chemical corrosion resistance and compression permanent deformation resistance due to the highly saturated structure of the hydrogenated nitrile rubber, and has the advantages of high strength, high tearing performance, high wear resistance and the like, so that the performance of the epoxy resin film can be improved; the polyvinyl chloride paste resin is in a powder structure, and can improve the ductility, the shaping and the heat resistance of the polyurethane film;
s2, adding the phospholipid molecular solution and the inorganic mixed filler into the blended solution in the S1, and stirring for 15-20min in a constant-temperature stirrer, wherein the temperature is kept at 40-50 ℃ to obtain a uniformly dispersed solution; the phospholipid molecular solution is a surfactant which has two opposite properties of lipophilicity and hydrophilcity in a molecule, can be used as a dispersing agent of colloid, enables the colloidal solution to be uniformly and stably dispersed, is not easy to generate phenomena of sedimentation, segregation and the like, increases the fluidity of the colloid, and is beneficial to the subsequent flattening of the epoxy resin solution;
s3, placing the demolding paper in a leveling groove body on a leveling device, starting a driving motor, pouring the dispersion solution obtained in the step S2 into the leveling groove body three times, keeping the temperature of the leveling groove body at 35-40 ℃, enabling the dispersion solution to be uniformly dispersed in the leveling groove body to reach a self-leveling state, and scraping the leveling film layer in the leveling groove body by using a scraper at the moment to keep the thickness of the film layer at 50-150 microns;
s4, taking the flattening tank body containing the film layer from the flattening device, and putting the tank body into a light-proof fume hood to volatilize for 12-36h for removing acetone, wherein the temperature in the fume hood is kept at 35-40 ℃, and the temperature is higher than the temperature to be beneficial to the volatilization of the acetone;
s5, taking the flattening tank out of the fume hood, and peeling the film layer from the flattening tank to obtain the epoxy resin film;
the flattening device in the S3 comprises a flattening groove body 1, a U-shaped mounting rod 3, a fixed pipe 4, a base 5, a U-shaped push rod 7, a scraping plate 9, a vertical movable rod 13 and a roller 14; the flattening tank body 1 is a rectangular tank body-shaped structure with an opening at one side; an electric heating plate is arranged at the bottom of the flattening tank body 1; the opening of the flattening trough body 1 is movably hinged with a movable baffle 16 through a torsion spring; a handle is arranged on the movable baffle 16; the tops of two side plates adjacent to the movable baffle 16 on the flattening tank body 1 are provided with T-shaped slide rails 15; the T-shaped slide rail 15 is connected with the T-shaped slide block in a sliding manner; the top of the T-shaped sliding block is fixedly provided with a mounting pipe 10; two ends of the U-shaped push rod 7 are respectively inserted into the two groups of mounting pipes 10; a scraping plate 9 for scraping the film layer to a certain thickness is fixedly arranged at the bottom of the U-shaped push rod 7; the end part of the U-shaped push rod 7 and the inside of the mounting pipe 10 are provided with thickness adjusting mechanisms; the T-shaped sliding block is initially positioned at one end far away from the movable baffle 16, and a stop rod 8 for limiting the movement of the T-shaped sliding block is arranged on one side, far away from the movable baffle 16, of the upper surface of the flattening groove body 1; the stop lever 8 is movably hinged on the upper surface of the flattening tank body 1 through a torsion spring; the two ends of the bottom of the flattening tank body 1 are both fixedly provided with U-shaped mounting rods 3; the U-shaped mounting rod 3 is clamped in an elastic clamping piece 12 at the top of the vertical movable rod 13; the elastic clamping pieces 12 are uniformly arranged on the U-shaped mounting rod 3; the vertical movable rod 13 is inserted into the fixed pipe 4; the bottom end of the fixed pipe 4 is fixedly welded on the upper surface of the base 5; a convex rod 17 fixedly arranged at the edge of the vertical movable rod 13 is mutually connected with a vertical slide rail 18 on the inner wall of the fixed pipe 4 in a sliding way; the bottom of the convex rod 17 is fixedly connected with the bottom of the vertical slide rail 18 through a compression spring; a spring pin 21 is arranged in the cylindrical groove at the end part of the convex rod 17; an arc-shaped clamping groove 19 matched with the spring pin 21 is formed in the position, close to the bottom end of the vertical slide rail 18, of the inner wall of the vertical slide rail 18; magnets are arranged inside the spring pin 21 and at the bottom of the arc-shaped clamping groove 19, and the magnets inside the spring pin 21 and the magnets inside the arc-shaped clamping groove 19 attract each other; the bottom of the vertical movable rod 13 is fixedly connected with one end of the pull rope; the other end of the pull rope penetrates through a fixed pulley at the bottom of the fixed pipe 4 and penetrates out of the inner wall of the fixed pipe 4 to be fixedly connected with the top edge of the roller 14; the roller 14 is fixedly connected with a rotating shaft of a driving motor; the driving motor is fixedly arranged on the upper surface of the base 5; the bottom of the flattening tank body 1 is provided with a plurality of groups of vibration exciters 2;
when the device works, the demoulding paper is placed in the flattening tank body 1 on the flattening device, the driving motor is started, the driving motor drives the roller 14 to rotate back and forth, when the roller 14 rotates towards the direction of the movable baffle 16, the roller 14 winds the pull rope on one side far away from the movable baffle 16 at the moment, and then the vertical movable rod 13 is pulled downwards, so that the flattening tank body 1 inclines towards one side, when the roller 14 rotates towards one side far away from the movable baffle 16, the roller 14 winds the pull rope on one side close to the movable baffle 16 at the moment, the flattening tank body 1 inclines towards the other side at the moment, the uniformly dispersed solution stirred in the stirrer is added into the flattening tank body 1 in batches, and therefore, the flattening tank body 1 inclines back and forth under the acting force of the pull rope, and then the dispersed solution is uniformly spread in the flattening tank body 1, the self-leveling state is achieved, the vibration exciter 2 is arranged at the bottom of the leveling groove body 1, the vibration exciter 2 can increase the vibration at the bottom of the leveling groove body 1 so as to discharge bubbles in the solution, the solution is distributed more uniformly in the leveling groove body 1, after the leveling is finished, the driving motor and the power supply electrically connected with the electric heating plate are turned off, then the leveling groove body 1 is pressed downwards, the spring pin 21 at the end part of the convex rod 17 is embedded into the arc-shaped clamping groove 19, at the moment, the magnet at the bottom of the arc-shaped clamping groove 19 is mutually attracted with the magnet in the spring pin 21, and the clamping connection between the spring pin 21 and the arc-shaped clamping groove 19 is firmer; then, the stop lever 8 is turned upwards to push the U-shaped push rod 7, so that the film layer is scraped to remove a part of the film layer by the scraper blade 9 positioned at the bottom of the U-shaped push rod 7, the film layer is ensured within a certain thickness range, then the flattening tank body 1 is lifted to the upper end, the U-shaped installation rod 3 positioned at the bottom of the flattening tank body 1 is separated from the inside of the elastic clamping piece 12, the flattening tank body 1 is placed in the inside of a fume hood for 12-36h, acetone in the film layer is removed, and then the film layer is taken down from the inside of the flattening tank body 1, so that the epoxy resin film can be obtained.
As an embodiment of the invention, the inorganic mixed filler is formed by mixing nano montmorillonite and talcum powder, and the ratio of the nano montmorillonite to the talcum powder is 2: 1; when the epoxy resin coating is in work, the properties of the epoxy resin film, such as strength, elongation and the like, can be greatly improved by 20 percent by the nano montmorillonite, some properties can be improved by several times, and the wear resistance and the skid resistance can be improved by the talcum powder.
As an embodiment of the present invention, the kind of the curing agent is a phenol amino alcohol curing agent; the phenolic amino alcohol curing agent is obtained by modifying an amine curing agent, and is non-toxic and safe.
As an embodiment of the present invention, a spring compression tube 20 is fixedly disposed at the bottom of the fixed tube 4; a light pressing plate is arranged at the top of the spring compression pipe 20; a pull rope fixedly connected with the vertical movable rod 13 penetrates through the inside of the spring compression pipe 20; an arc-shaped groove is formed in the position, close to the hinge joint of the stop lever 8, on the upper surface of the flattening tank body 1; a spherical rubber air bag 26 is fixedly arranged inside the arc-shaped groove; the spherical rubber air bag 26 is fixedly connected with the bottom of the spring compression pipe 20 in the fixed pipe 4 positioned below the spherical rubber air bag through the elastic hose 11; when the device works, after a dispersing solution is flattened, and when the flattening tank body 1 is pressed downwards, the vertical movable rod 13 extrudes the spring compression pipe 20 downwards, at the moment, gas in the spring compression pipe 20 is extruded and enters the spherical rubber air bag 26 through the elastic hose 11, so that the spherical rubber air bag 26 is expanded, the volume of the expanded spherical rubber air bag 26 is increased, the stop lever 8 is bounced upwards, the stop lever 8 does not need to be manually pulled open again, the device is convenient to use, and the spherical rubber air bag 26 is arranged at a position close to the hinge joint of the stop lever 8, so that the stop lever 8 is more easily jacked up.
As an embodiment of the present invention, the thickness adjusting mechanism includes a circular through hole 6 and a movable pin 27; the circular through hole 6 is positioned at the edge of the mounting tube 10; the circular through holes 6 are uniformly arranged from top to bottom on the edge of the mounting pipe 10; a movable pin 27 is fixedly arranged in a cylindrical groove formed in the edge of the bottom end of the U-shaped push rod 7 through a spring; the movable pin 27 is matched with the circular through hole 6; during operation, the U-shaped push rod 7 is pressed downwards through the accessible for the movable pin 27 that is located in the columnar groove carries out the joint with the circular through-hole 6 of different height positions department, and then can change the displacement between scraper blade 9 and the shakeout cell body 1 bottom, and then can carry out the adjustment of epoxy film thickness.
As an embodiment of the present invention, a fixed circular plate 24 is fixedly disposed inside the circular through hole 6 at a position close to the outer port; the fixed circular plate 24 is provided with a vent hole 22; a rubber diaphragm is fixedly arranged on the outer wall of the fixed circular plate 24 at the outer port of the vent hole 22, and a fluorescent belt is adhered to the outer surface of the rubber diaphragm; the inner side wall of the fixed circular plate 24 is fixedly connected with the movable circular plate 23 through a compression spring; a columnar rubber air bag 25 is fixedly arranged between the movable circular plate 23 and the fixed circular plate 24, and a compression spring fixedly connected with the movable circular plate 23 is positioned inside the columnar rubber air bag 25; during operation, when activity round pin 27 block was in circular through-hole 6's inside, activity round pin 27 can extrude the activity plectane 23 in the circular through-hole 6 this moment, and then with the inside gaseous extrusion of column rubber gasbag 25, gaseous through the air vent 22 on the fixed plectane 24 and make the rubber diaphragm outwards expand and stretch out circular through-hole 6's outer port this moment, and the rubber diaphragm is last to glue and is equipped with the fluorescence area, and then can clearly see out which position of U-shaped push rod 7 block at installation tube 10, alright know the displacement between scraper blade 9 that this position corresponds and the shakeout cell body 1 bottom, just also know the filming thickness of regulation.
The specific working process of the invention is as follows:
when the device works, the demoulding paper is placed in the flattening tank body 1 on the flattening device, the driving motor is started, the driving motor drives the roller 14 to rotate back and forth, when the roller 14 rotates towards the direction of the movable baffle 16, the roller 14 winds the pull rope on one side far away from the movable baffle 16 at the moment, and then the vertical movable rod 13 is pulled downwards, so that the flattening tank body 1 inclines towards one side, when the roller 14 rotates towards one side far away from the movable baffle 16, the roller 14 winds the pull rope on one side close to the movable baffle 16 at the moment, the flattening tank body 1 inclines towards the other side at the moment, the uniformly dispersed solution stirred in the stirrer is added into the flattening tank body 1 in batches, and therefore, the flattening tank body 1 inclines back and forth under the acting force of the pull rope, and then the dispersed solution is uniformly spread in the flattening tank body 1, the self-leveling state is achieved, the vibration exciter 2 is arranged at the bottom of the leveling groove body 1, the vibration exciter 2 can increase the vibration at the bottom of the leveling groove body 1 so as to discharge bubbles in the solution, the solution is distributed more uniformly in the leveling groove body 1, after the leveling is finished, the driving motor and the power supply electrically connected with the electric heating plate are turned off, then the leveling groove body 1 is pressed downwards, the spring pin 21 at the end part of the convex rod 17 is embedded into the arc-shaped clamping groove 19, at the moment, the magnet at the bottom of the arc-shaped clamping groove 19 is mutually attracted with the magnet in the spring pin 21, and the clamping connection between the spring pin 21 and the arc-shaped clamping groove 19 is firmer; then, the stop lever 8 is turned upwards to push the U-shaped push rod 7, so that the film layer is scraped to remove a part of the film layer by the scraper blade 9 positioned at the bottom of the U-shaped push rod 7, the film layer is ensured within a certain thickness range, then the flattening tank body 1 is lifted to the upper end, the U-shaped installation rod 3 positioned at the bottom of the flattening tank body 1 is separated from the inside of the elastic clamping piece 12, the flattening tank body 1 is placed in the inside of a fume hood for 12-36h, acetone in the film layer is removed, and then the film layer is taken down from the inside of the flattening tank body 1, so that the epoxy resin film can be obtained.
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. An epoxy resin film, characterized in that: the feed is prepared from the following raw materials in parts by weight:
40-60 parts of E-44 epoxy resin, 30-50 parts of hydrogenated nitrile rubber, 3-5 parts of inorganic mixed filler, 6-10 parts of phospholipid molecular solution, 2.5-5 parts of curing agent and 6.5-7-10 parts of polyvinyl chloride paste resin;
the preparation method of the epoxy resin film comprises the following steps:
s1, adding a mixture of E-44 epoxy resin, hydrogenated nitrile rubber, a curing agent and polyvinyl chloride paste resin into an acetone solution to obtain a blended solution;
s2, adding the phospholipid molecular solution and the inorganic mixed filler into the blended solution in the S1, and stirring for 15-20min in a constant-temperature stirrer, wherein the temperature is kept at 40-50 ℃ to obtain a uniformly dispersed solution;
s3, placing the demolding paper in a leveling groove body on a leveling device, starting a driving motor, pouring the dispersion solution obtained in the step S2 into the leveling groove body three times, keeping the temperature of the leveling groove body at 35-40 ℃, enabling the dispersion solution to be uniformly dispersed in the leveling groove body to reach a self-leveling state, and scraping the leveling film layer in the leveling groove body by using a scraper at the moment to keep the thickness of the film layer at 50-150 microns;
s4, taking the flattening tank body containing the film layer from the flattening device, putting the flattening tank body into a light-proof fume hood, volatilizing for 12-36h, and removing acetone, wherein the temperature in the fume hood is kept at 35-40 ℃;
s5, taking the flattening tank out of the fume hood, and peeling the film layer from the flattening tank to obtain the epoxy resin film;
the flattening device in the S3 comprises a flattening groove body (1), a U-shaped mounting rod (3), a fixed pipe (4), a base (5), a U-shaped push rod (7), a scraping plate (9), a vertical movable rod (13) and a roller (14); the flattening tank body (1) is a rectangular tank body-shaped structure with an opening at one side; an electric heating plate is arranged at the bottom of the flattening tank body (1); the opening of the flattening trough body (1) is movably hinged with a movable baffle (16) through a torsion spring; a handle is arranged on the movable baffle (16); the tops of two side plates adjacent to the movable baffle (16) on the flattening tank body (1) are provided with T-shaped slide rails (15); the T-shaped slide rail (15) is connected with the T-shaped slide block in a sliding manner; the top of the T-shaped sliding block is fixedly provided with a mounting pipe (10); two ends of the U-shaped push rod (7) are respectively inserted into the two groups of mounting pipes (10); a scraping plate (9) for scraping the film layer to a certain thickness is fixedly arranged at the bottom of the U-shaped push rod (7); the end part of the U-shaped push rod (7) and the inside of the mounting pipe (10) are provided with thickness adjusting mechanisms; the T-shaped sliding block is initially positioned at one end far away from the movable baffle (16), and a stop rod (8) for limiting the movement of the T-shaped sliding block is arranged at one side, far away from the movable baffle (16), of the upper surface of the flattening groove body (1); the stop lever (8) is movably hinged on the upper surface of the flattening tank body (1) through a torsion spring; two ends of the bottom of the flattening tank body (1) are respectively fixedly provided with a U-shaped mounting rod (3); the U-shaped mounting rod (3) is clamped in an elastic clamping piece (12) at the top of the vertical movable rod (13); the elastic clamping pieces (12) are uniformly arranged on the U-shaped mounting rod (3); the vertical movable rod (13) is inserted in the fixed pipe (4); the bottom end of the fixed pipe (4) is fixedly welded on the upper surface of the base (5); a convex rod (17) fixedly arranged at the edge of the vertical movable rod (13) is mutually connected with a vertical slide rail (18) on the inner wall of the fixed pipe (4) in a sliding way; the bottom of the convex rod (17) is fixedly connected with the bottom of the vertical slide rail (18) through a compression spring; a spring pin (21) is arranged in the cylindrical groove at the end part of the convex rod (17); an arc-shaped clamping groove (19) matched with the spring pin (21) is formed in the position, close to the bottom end of the vertical sliding rail (18), of the inner wall of the vertical sliding rail (18); magnets are arranged inside the spring pin (21) and at the bottom of the arc-shaped clamping groove (19), and the magnets inside the spring pin (21) and the magnets inside the arc-shaped clamping groove (19) are mutually attracted; the bottom of the vertical movable rod (13) is fixedly connected with one end of the pull rope; the other end of the pull rope penetrates through a fixed pulley at the bottom of the fixed pipe (4) and penetrates out of the inner wall of the fixed pipe (4) to be fixedly connected with the top edge of the roller (14); the roller (14) is fixedly connected with a rotating shaft of the driving motor; the driving motor is fixedly arranged on the upper surface of the base (5); the bottom of the flattening tank body (1) is provided with a plurality of groups of vibration exciters (2).
2. The epoxy resin film according to claim 1, wherein: the inorganic mixed filler is formed by mixing nano montmorillonite and talcum powder, and the ratio of the nano montmorillonite to the talcum powder is 2: 1.
3. The epoxy resin film according to claim 1, wherein: the curing agent is a phenolic amino alcohol curing agent.
4. The epoxy resin film according to claim 1, wherein: a spring compression pipe (20) is fixedly arranged at the bottom of the fixed pipe (4); a light pressing plate is arranged at the top of the spring compression pipe (20); a pull rope fixedly connected with the vertical movable rod (13) penetrates through the inside of the spring compression pipe (20); an arc-shaped groove is formed in the position, close to the hinge joint of the stop lever (8), on the upper surface of the flattening tank body (1); a spherical rubber air bag (26) is fixedly arranged inside the arc-shaped groove; the spherical rubber air bag (26) is fixedly connected with the bottom of the spring compression pipe (20) in the fixed pipe (4) positioned below the spherical rubber air bag through the elastic hose (11).
5. The epoxy resin film according to claim 1, wherein: the thickness adjusting mechanism comprises a circular through hole (6) and a movable pin (27); the circular through hole (6) is positioned at the edge of the mounting pipe (10); the circular through holes (6) are uniformly arranged from top to bottom on the edge of the mounting pipe (10); a movable pin (27) is fixedly arranged in a cylindrical groove formed in the edge of the bottom end of the U-shaped push rod (7) through a spring; the movable pin (27) is matched with the circular through hole (6).
6. The epoxy resin film according to claim 5, wherein: a fixed circular plate (24) is fixedly arranged at the position, close to the outer port, in the circular through hole (6); the fixed circular plate (24) is provided with a vent hole (22); a rubber diaphragm is fixedly arranged at the outer port of the outer wall of the fixed circular plate (24) positioned at the vent hole (22), and a fluorescent belt is adhered to the outer surface of the rubber diaphragm; the inner side wall of the fixed circular plate (24) is fixedly connected with the movable circular plate (23) through a compression spring; a columnar rubber air bag (25) is fixedly arranged between the movable circular plate (23) and the fixed circular plate (24), and a compression spring fixedly connected with the movable circular plate (23) is positioned inside the columnar rubber air bag (25).
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CN202010611496.1A CN111875926A (en) | 2020-06-29 | 2020-06-29 | Epoxy resin film |
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CN202010611496.1A CN111875926A (en) | 2020-06-29 | 2020-06-29 | Epoxy resin film |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112546881A (en) * | 2021-03-01 | 2021-03-26 | 山东招金膜天股份有限公司 | Polyamide reverse osmosis membrane for seawater desalination and preparation method and device thereof |
CN113976096A (en) * | 2021-09-22 | 2022-01-28 | 吕凌辉 | Processing equipment and processing method of graphene modified degradable material |
CN114161635A (en) * | 2021-11-05 | 2022-03-11 | 董福超 | Epoxy resin membrane preparation system |
CN114605083A (en) * | 2022-03-18 | 2022-06-10 | 深圳市精品诚电子科技有限公司 | Rapid hardening processing technology for mobile phone lens |
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2020
- 2020-06-29 CN CN202010611496.1A patent/CN111875926A/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112546881A (en) * | 2021-03-01 | 2021-03-26 | 山东招金膜天股份有限公司 | Polyamide reverse osmosis membrane for seawater desalination and preparation method and device thereof |
CN112546881B (en) * | 2021-03-01 | 2021-05-28 | 山东招金膜天股份有限公司 | Preparation method and device of polyamide reverse osmosis membrane for seawater desalination |
CN113976096A (en) * | 2021-09-22 | 2022-01-28 | 吕凌辉 | Processing equipment and processing method of graphene modified degradable material |
CN114161635A (en) * | 2021-11-05 | 2022-03-11 | 董福超 | Epoxy resin membrane preparation system |
CN114605083A (en) * | 2022-03-18 | 2022-06-10 | 深圳市精品诚电子科技有限公司 | Rapid hardening processing technology for mobile phone lens |
CN114605083B (en) * | 2022-03-18 | 2023-12-05 | 深圳市精品诚电子科技有限公司 | Quick hardening processing technology for mobile phone lens |
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