59results about How to "Reduce the difficulty of stripping" patented technology

The invention discloses a preparation method of a graphene material. The preparation method includes the following steps that (1) after graphite and alkali metal are evenly mixed, vacuumizing and heat treatment are carried out, so that alkali metal intercalation graphite is obtained; (2) the alkali metal intercalation graphite is collected to be added into molten ionic liquid, after even stirring is conducted, the mixture is placed into an ultrasonic pulverizer, ultrasonic treatment is performed, and accordingly graphene suspension liquid is obtained; (3) the graphene suspension liquid is filtered, organic solvent for filtering residues is collected for washing and filtering, then, deionized water is used for conducting repeated washing and filtering until an eluate is neutral, filter objects are dried, and hence the graphene material is obtained. The invention further discloses the graphene material obtained through the preparation method. According to the graphene material and the preparation method thereof, the graphite and the alkali metal are mixed to be subjected to heat treatment first, the alkali metal intercalation graphite is obtained and then is dispersed into the ionic liquid, and after ultrasonic treatment is completed, the graphene material which is complete in laminated structure, high in monolayer rate and good in dispersity can be obtained; the method is simple, cost is low, efficiency is high, and the graphene material and the preparation method thereof are suitable for industrial production.

The invention belongs to the field of material preparation, and relates to a preparation method for preparing a graphene dispersion liquid by electrochemical swelling. The method comprises the following steps: (1) taking graphite sheets as a cathode and taking a graphite substrate as a cathode to carry out electrolysis on the electrodes in an electrolytic tank, wherein the electrolyte is an acetonitrile solution dissolved with a quaternary ammonium salt, and the concentration of the quaternary ammonium salt is 5-10 mg/mL; (2) rinsing the cathode by using a rinsing solution containing a dispersing agent, carrying out ultrasonic stripping on the solution subjected to rinsing to form a dispersion, then centrifuging the dispersion, washing the dispersion by using isopropyl alcohol to remove the excess dispersing agent; and (3) separating solid impurities to obtain the graphene dispersion liquid. According to the method, the graphene nanosheets are swelled and dispersed through an electrochemical method, quaternary ammonium salt cations are inserted into interlayers of the graphene, and then interlayer expansion is achieved, and preparation efficiency of the graphene dispersion liquid is improved.

The invention discloses a device for disassembling a liquid crystal display polarizer. The device comprises a frame and a temperature controller arranged on the frame, a liquid crystal display input platform is arranged on the left side of the frame, a glass substrate output supporting roller group is arranged on the right side of the frame, a polarizer separating mechanism is arranged below an open space between the liquid crystal display input platform and the glass substrate output supporting roller group on the frame, an electric heating aluminum plate and a temperature sensor are embedded into the surface of the liquid crystal display input platform, the polarizer separating mechanism comprises a vertical electric push rod, a power roller and a rubber belt roller, the vertical electric push rod is arranged on the frame upwards, the power roller is arranged on the right side of the vertical electric push rod, the rubber belt roller is arranged on the left side of the vertical electric push rod, a pressure spring is vertically fixed upwards at the top end of the vertical electric push rod, a rubber belt pressing wheel is arranged at the top end of the pressure spring, and a rubber belt on the rubber belt roller bypasses the rubber belt pressing wheel and is connected with the power roller in a winding manner. The device has the advantages that disassembly efficiency is improved, the device is simple to operate, and a liquid crystal display is less damaged.

The present invention discloses a flexible substrate and a manufacturing method thereof, and a display device, comprising: disposing a detachable layer on a rigid substrate, and fixing the flexible base on the rigid substrate by the detachable layer, wherein the detachable layer comprises a mesh layer and a plurality of mutually independent supporting parts disposed in meshes of the mesh layer; forming a functional layer on the flexible base to obtain a flexible substrate; separating the flexible substrate from the rigid substrate by applying an external force on the mesh layer. The present invention makes it easier for the flexible substrate to be stripped off after it is manufactured, improves the yield rate; moreover, the present invention has the process compatibility of ordinary production lines, and saves costs.

The present invention relates to the technical field of display, especially to a bearing substrate and a manufacturing method thereof, a flexible substrate and a manufacturing method thereof, and a display device. The bearing substrate comprises: a substrate comprising a first surface and a second surface opposite to the first surface; a bonding portion arranged at the second surface and comprising magnetic particles, wherein the magnetic particles can rotate under the action of an external magnetic field, the magnetic particles comprise a first portion and a second portion, when the first portion faces one side far away from the first surface, the binding force between the bonding portion and the flexible substrate can be weakened, and when the second portion faces one side far away fromthe first surface, the binding force between the bonding portion and the flexible substrate is enhanced. The bearing substrate and the manufacturing method thereof can reduce the stripping difficultyand the stripping cost of the flexible substrate and the bearing substrate while improving the manufacturing quality of the flexible substrate.

The invention provides a substrate and a preparation method of a flexible light-emitting electroluminescent device. The substrate includes a first surface and a second surface opposite to the first surface. The first surface is provided with a plurality of first openings, the second surface is provided with a plurality of second openings, the first surface is used for carrying a film layer, the plurality of first openings and the plurality of second openings are in one-to-one correspondence and communicate with each other to form a plurality of hole channels, the surface energy of the first surface and the surface energy of the film layer are both smaller than the surface energy of inner surfaces of the hole channels, and the deviation of the surface energy of the film layer from the surface energy of the first surface is within +/-10%. By changing the surface performance of the substrate surfaces and the inner surfaces of the substrate hole channels, the rapid peeling of a flexible device and the substrate is achieved, and the peeling efficiency is improved. At the same time, the device and the substrate can be separated under the condition that the device is not mechanically damaged through the acting force of the etching medium destroying a sacrificial layer material and substrate contact interface, the stripping and preparation of the flexible device are completed, and thepreparation yield of the flexible device is improved.

The invention provides a preparation method of a display substrate, belonging to the technical field of display, which can solve the problems of complicated removing process and bad effect of the existing display substrate back film. A method for preparing a display substrate includes forming a back film material having a first adhesive force on a substrate; The substrate includes a substrate region and a peripheral region surrounding the substrate region. The substrate region comprises a display region, a bent region and a bonding region arranged in sequence along the column direction; Cutting the backing film material along the contours of the display area and the bonding area, removing the backing film material of the peripheral area and the bending area by a peeling process, and treating the backing film material of the display area and the bonding area to change the backing film material of the display area and the bonding area from a first adhesive force to a second adhesive force to form a backing film on the substrate; Wherein the second adhesive force is greater than the first adhesive force.

The invention provides a detection control system for laser de-bonding. In a laser de-bonding process, a suction cup is adsorbed on the surface of a substrate, a laser beam sequentially penetrates through the suction cup and the substrate and then is focused on a bonding layer, and after the focus of the laser beam is controlled to be behind a unit area of a scanning part of the bonding layer, a lifting assembly pulls a suction cup upwards, so that the substrate and the wafer are separated at the position of the unit area, the stripping mode that laser de-bonding and suction cup pulling are carried out at the same time is adopted, the substrate and the wafer are prevented from being adhered again due to the fact that a bonding material in a molten state is cooled and solidified again, and therefore the stripping difficulty is reduced. And a semi-reflecting and semi-transmitting mirror, a detection light source, a beam splitting prism, a light spot detection assembly and an upper computer are arranged, so that laser spot position information and bonding layer heated condition information of a local area can be observed in real time, the upper computer can control a galvanometer system to adjust a scanning track and scanning time of a laser beam, and the laser de-bonding efficiency and effect are improved.

The invention provides a photosensitive resin composition. The composition is prepared from the following components in parts by weight: 20-25 parts of epoxy acrylate prepolymer, 50-60 parts of modified styrene-acrylate copolymer, 13.5-24.5 parts of alkali-soluble resin, 0.6-2.5 parts of photo-initiator and 1-1.5 parts of dye.

The invention relates to a method for gas phase stripping of montmorillonite nano-sheets. The method comprises: (1) placing montmorillonite into an air blasting drying box, and drying for 6-8 h at a temperature of 60-80 DEG C; (2) placing the montmorillonite obtained in the step (1) in a reaction bottle filled with 50-100 mL liquid nitrogen until the liquid nitrogen is completely vaporized; (3) standing the montmorillonite obtained in the step (2), and taking out so as to be spare after the temperature of the montmorillonite is restored to a room temperature; and (4) repeatedly performing the steps (2)-(3) 1-10 times. According to the present invention, the method solves the problems of consumption of a large amount of mediums, high energy consumption, long process flow, environmental pollution, easy destruction on the lamellar structure and the like in the stripping process of the montmorillonite, and has advantages of simple process, low cost, environment protection, montmorillonite stripping difficulty reducing and stripping efficiency improving.

The invention relates to a hood heat shield forming tool for a returnable spacecraft. The hood heat shield forming tool is characterized by comprising a lower die, a middle die, an upper die, an observation window, a vacuum meter, a space occupying lining, a vacuum pipeline, a glue injection pipeline, a tray, a hoisting ring, a compression plate and a compression frame. Along the height direction,the tool is divided into three layers, namely the upper die, the middle die and the lower die. The middle die and the lower die are used for containing a hood head shield of the spacecraft, and a mounting surface between the middle die and the lower die is positioned at the middle position of the tray in the height direction. The upper die is used as an upper cover, and the upper die, the middledie and the lower die form a closed chamber body together after being assembled. The space occupying lining is in screwed connection with the upper die, and a sealing gasket is arranged at a screw position.

The invention discloses a method for preparing graphene slurry. The method comprises the following steps: 1) performing high temperature expansion on the expandable graphite, then performing solid-gasseparation to obtain graphite worm, and then spreading the material and finally rolling the material into paper; 2) crushing the graphite paper obtained in step 1) to obtain graphite powder having aparticle size of 200 to 500 [mu]m; 3) crushing the graphite powder obtained in the step 2) to obtain graphite micro powder having the particle size of 5 [mu]m or less; and 4) mixing the graphite finepowder with a solvent, uniformly stirring a mixture, and then using a high-speed shearing machine for processing, and then performing ultrasonic processing to obtain the graphene slurry. The method expands high-rate expandable graphite and then rolls the graphite to paper to increase the unit volume density, and then performs subsequent preparation, and the stripping is more sufficient; by high-temperature expansion and gas separation, the exhaust gas and impurities can be removed, and the quality of the graphene slurry can be improved.

The invention provides a gel assembling system. The system is used for cutting gel from a raw material layer of a gel strip and assembling the gel on a part. The system involves a cutting and assembling mechanism, a feeding mechanism, a recycling mechanism, a conveying mechanism and a stripping mechanism; the cutting and assembling mechanism is provided with a feeding end and a recycling end and is used for cutting the raw material layer from one side and assembling the cut gel on the part to be assembled; the feeding mechanism is used for feeding the gel strip for the feeding end of the cutting and assembling mechanism; the recycling mechanism is used for recycling release films and raw material layer waste which are stripped after cutting from the recycling end of the cutting and assembling mechanism; the conveying mechanism is used for providing power to continuously convey the gel strip from the feeding mechanism to the cutting and assembling mechanism and conveying the release films and raw material layer waste which are stripped after cutting to the recycling mechanism; and the stripping mechanism is used for stripping the release films and the raw material layer waste from the gel from one end to the opposite end in the gel strip conveying direction. The invention further provides a gel assembling method. According to the system and method, the problem that the gel and the raw material layer waste cannot be easily separated is solved, and the reject ratio of products is reduced.

The invention provides an LED epitaxial growth method taking graphene as a buffer layer. The LED epitaxial growth method comprises the following steps: 1, growing a graphene buffer layer on a substrate; 2, growing an aluminum nitride layer on the graphene buffer layer; 3, processing the composite substrate; 4, growing an aluminum gallium nitride layer; 5, growing an undoped gallium nitride layer;6, growing a silicon-doped N-type gallium nitride layer; 7, growing a light-emitting layer; 8, growing a P-type aluminum gallium nitride layer doped with aluminum and magnesium; 9, growing a P-type gallium nitride layer doped with magnesium; and 10, carrying out heat preservation for 20-30 minutes at the temperature of 650-680 DEG C, closing the heating system and the gas supply system, and carrying out furnace cooling. The epitaxial growth method provided by the invention can effectively solve the problems of preparation of a large-area gallium nitride epitaxial layer and high stripping difficulty between the epitaxial layer and the substrate.

The invention relates to the technical field of reconstituted tobacco preparation, and especially relates to a stripping composition, a stripping reagent, application and a preparation method of the stripping reagent, and a method for stripping reconstituted tobacco. The mass of linolenic acid, linseed oil, palmitic acid, behenic acid, stearic acid and lauric acid in the stripping composition accounts for 1-20% of the mass of the stripping composition, and the mass of each of gelatin, starch, sodium alginate, sodium dodecyl phosphate and vitamin E accounts for 1-10% of the mass of the stripping composition. The stripping composition can be beneficial to stripping of the reconstituted tobacco, the integrity of the horizontal scroll of the stripped reconstituted tobacco is improved, the situation that powder falls off from the baking surface of the reconstituted tobacco is reduced, the quality of the reconstituted tobacco is improved, and meanwhile, the smoking quality of the reconstituted tobacco cannot be affected by using the stripping composition.

The invention discloses a water nozzle, which comprises a water nozzle body, wherein the water nozzle body is provided with a sharp nose and is a hollow body, the top of the water nozzle body is provided with a water introducing hole, an outer side wall at the bottom of the water nozzle body is provided with a handheld part protruding out of the side wall, and a connection part between the handheld part and an end edge of the water nozzle body is provided with a tearing port. In the invention, by arranging the handheld part on the side wall of the water nozzle body and arranging the tearing port on the connection part between the handheld part and the end edge of the water nozzle body, the purpose of better sanitation can be achieved during the replacement of the water nozzle, and the water nozzle can be stripped from a handle more easily. In the invention, a tearing groove is further arranged on the inner wall of the water nozzle body along the extending direction of the tearing port so that the difficulty in stripping the water nozzle from a spray nozzle is further reduced.

The invention discloses a preparation method of an amazingel removal stripping solution in a holographic six-dimensional delamination amazingel removal operation. The amazingel removal stripping solution comprises a pretreatment solution and a stripping solution, wherein the pretreatment solution is composed of the following components in parts by weight of 5-10 parts of blue tansy essential oil, 3-5 parts of amino acid, 5-10 parts of vitamin B, 1-5 parts of carbonated water and the balance of normal saline, and the total amount is 100 parts; and the stripping solution is composed of the following components in parts by weight of 20-25 parts of acidified water, 2-5 parts of a povidone-iodine solution, 3-5 parts of vitamin C and the balance of normal saline, and the total amount is 100 parts. The amazingel removal stripping solution comprises the pretreatment solution for soaking and the stripping solution; firstly the pretreatment solution with the relatively low temperature is used for soaking an affected part, human tissue and amazingel shrink, then the stripping solution is used for flow flushing, cold contraction and thermal expansion are generated, and the distance between the amazingel and the human tissue is increased; and meanwhile, the blue tansy essential oil has a lubricating effect, so that the amazingel can conveniently flow out along with the stripping solution, and the stripping difficulty of the amazingel is reduced.

The invention provides an objective table assembly and a laser de-bonding device. The objective table assembly comprises an objective table, a suction cup and lifting assemblies. The first layer structure is fixed on the objective table. The suction cup is provided with an adsorption end face and a connecting end face, the adsorption end face is divided into at least three adsorption areas, and the adsorption areas comprise a circular adsorption area located in the center of the suction cup and at least two annular adsorption areas sequentially arranged from the circular adsorption area to the outside. The number of the lifting assemblies is at least three, and each lifting assembly is used for upwards pulling up the corresponding adsorption area after the bonding layer at the corresponding adsorption area position is heated by laser and subjected to phase change, so that the first layer structure and the second layer structure are separated at the corresponding adsorption area position. After part of the bonding layer area is scanned by laser, the corresponding adsorption area of the suction cup can be immediately lifted, so that the two layer structures at the adsorption area are separated, the situation that the bonding layer in the molten state is condensed and bonded again due to the fact that the part of the bonding layer area is heated by the laser is prevented, the stripping difficulty is reduced, the stripping time is shortened, and the stripping efficiency is improved.