Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

3182 results about "Release liner" patented technology

A release liner is a paper or plastic-based film sheet (usually applied during the manufacturing process) used to prevent a sticky surface from prematurely adhering. It is coated on one or both sides with a release agent, which provides a release effect against any type of a sticky material such as an adhesive or a mastic. Release liners are available in different colors, with or without printing under the low surface energy coating or on the backside of the liner. Release is separation of the liner from a sticky material; liner is the carrier for the release agent.

Double-layer buffer supporting film for flexible folding display screen and preparation method of double-layer buffer supporting film

The invention relates to the technical field of folding screen supporting films, and particularly discloses a double-layer buffering supporting film for a flexible folding display screen and a preparation method of the double-layer buffering supporting film. The double-layer buffer supporting film for the flexible folding display screen sequentially comprises a release film layer, a first adhesive layer, a first stainless steel layer, a second adhesive layer, a second stainless steel layer and a protective film layer from top to bottom, the first adhesive layer and the second adhesive layer are prepared by curing the same pressure-sensitive adhesive composition; the pressure-sensitive adhesive composition is prepared from the following raw materials: acrylate copolymer, hydrogenated rosin glyceride, hyperbranched polyesteramide-dopamine conjugate, acylhydrazone bond modified siloxane, a curing agent and a silane coupling agent; the protective film layer comprises the following raw materials: PET particles, nano silicon dioxide, an ethylene-vinyl acetate copolymer and an antioxidant. The double-layer buffer supporting film has the advantages of being high in supporting rigidity and interlayer peel strength, and serious folds caused by long-term repeated folding of the folding screen can be relieved.
Owner:TAICANG ZHANXIN ADHESIVE MATERIAL

Pet release film base film having low surface roughness and preparation method therefor

Disclosed in the present invention are a PET release film base film having low surface roughness and a preparation method therefor. The release film base film comprises three layers which are stacked: a core layer and two surface layers located on both sides of the core layer. The release film base film is obtained via three-layer co-extrusion by means of taking an auxiliary extrusion resin as a raw material of the two surface layers and a primary extrusion resin as a raw material of the core layer; the auxiliary extrusion resin is obtained by mixing an anti-blocking agent PET masterbatch and a PET base material in a mass ratio of 1:5-1:15; and the primary extrusion resin is a pure PET base material. The release film base film of the present invention has low surface roughness, low haze and excellent overall performance. Since large-particle benzoic acid-modified nano aluminum oxide has the refractive index very close to that of PET base films, the present invention can effectively avoid adverse visual impacts caused by a difference in the refractive index at interfaces between nanoparticles having large particle diameters and resin matrixes, thus effectively reducing the haze.
Owner:JIANGSU SIDIKE NEW MATERIALS SCI & TECH CO LTD

Low-viscosity low-climbing polyurethane optical protective film and preparation method thereof

The invention relates to the technical field of protective films, in particular to a low-viscosity low-climbing polyurethane optical protective film and a preparation method thereof. The preparation method comprises the following steps: carrying out sulfydryl-alkene click reaction on double-bond-containing hyperbranched polyester, 1H, 1H, 2H, 2H-perfluorodecanethiol and sulfydryl-containing organic silicon, and introducing a fluorine-containing chain segment and a siloxane chain segment to obtain modified hyperbranched polyester; then introducing the modified hyperbranched polyester into polyurethane through a grafting modification method, so as to prepare the polyurethane adhesive; and coating the surface of a base material with the polyurethane adhesive, compounding with a release film, and curing to obtain the polyurethane optical protective film. The polyurethane optical protective film prepared by the invention has excellent low viscosity and low climbing performance, can effectively protect the surface of an optical device from being polluted and damaged, and improves the service life and stability of the optical device.
Owner:JIANGSU SIRUIDA NEW MATERIAL TECH

Antistatic PET (Polyethylene Terephthalate) base film for preparing polaroid release film and preparation method of antistatic PET base film

The invention relates to an antistatic PET (Polyethylene Terephthalate) base film for preparing a polaroid release film and a preparation method thereof, the release film base film is prepared by taking an optical-grade PET slice as a main body, adding modified PET with a specific structure and a modified SiO2 filler, and carrying out co-extrusion casting, a unique three-section stretching process and coating with a coating liquid. According to the invention, material modification and process improvement are carried out, specifically, an optical-grade PET slice is taken as a main body material, modified PET and a modified SiO2 filler with a specific structure are added, a film is prepared through co-extrusion casting and a unique three-section stretching process, and then the surface of the film is coated with a layer of antistatic coating liquid, so that the antistatic film is obtained. The finally prepared base film has low alignment angle, low transverse hot shrinkage rate and high surface adhesion, keeps the characteristics of high light transmittance and low haze of an optical-grade polyester film, endows the film with certain antistatic property, and is particularly suitable for being used as a release film of a high-end polaroid.
Owner:扬州博恒新能源材料科技有限公司

Pull-up photocuring 3D printer and photocuring 3D printing method

According to the pull-up type photocuring 3D printer, an outer ring of a slewing bearing is fixed to a workbench, a lifting pipe is engaged with the inner side of an inner ring in a threaded mode, and the lifting pipe can only move in a reciprocating mode in the vertical direction; the sleeve is fixed on the outer ring, the trough is meshed on the outer ring in a threaded manner, and the guide rod on the inner ring is arranged in a guide hole of the trough in a sliding and penetrating manner; when the inner ring rotates, the material groove reciprocates between the first working position and the second working position, and the lifting pipe reciprocates between the third working position and the fourth working position. When the material groove is located at the first working position and the lifting pipe is located at the third working position, printing work can be conducted; and when the material groove is located at the third working position and the lifting pipe is located at the fourth working position, the release film and the product model on the printing platform are in a separated state. The invention further discloses a photocuring 3D printing method. The vertical moving distance and speed of the printing platform are reduced through descending of the material groove, abrasion of the ball screw and the screw nut is reduced, and the service life of equipment is prolonged.
Owner:NANJING TECH UNIV

Release film inside and outside stripping type three-dimensional printer and three-dimensional printing method

The invention discloses a release film inside and outside stripping type three-dimensional printer which comprises a workbench and a material pump, a transmission mechanism is installed on the workbench, a printing platform is installed on the transmission mechanism, a liquid guide hole is formed in the printing platform, a release film of a material groove divides the material groove into an air bin and a material bin, the air bin is filled with air, and the material bin is filled with material. Photosensitive resin is contained in the stock bin, the material pump is used for introducing the photosensitive resin in the stock bin into the demolding hole of the model through the liquid guide hole, and the release film and the model form an internal and external bidirectional stripping mode in combination with the adjustment of the pressure of the gas bin. The invention further discloses a three-dimensional printing method. The photosensitive resin in the trough is injected into the demolding hole of the model through the material pump, so that the release film is separated from the model from the inner direction and the outer direction of the model, and the stripping speed and the printing speed of the release film are increased.
Owner:NANJING TECH UNIV

High-temperature-resistant and high-impedance pressure-sensitive adhesive, supporting film and preparation method of supporting film

The invention relates to the technical field of pressure-sensitive adhesives, in particular to a high-temperature-resistant high-impedance pressure-sensitive adhesive, a supporting film and a preparation method of the supporting film. A styrene-butadiene-styrene block copolymer (SBS) is used as a main body material, an acrylic copolymer with high carboxyl content is grafted in a solvent in a thermal initiation mode, the high-temperature-resistant and high-impedance pressure-sensitive adhesive is obtained after the high-temperature-resistant and high-impedance pressure-sensitive adhesive is compounded with tackifying resin, a curing agent and an antioxidant, and after optical-grade PET is coated with the high-temperature-resistant and high-impedance pressure-sensitive adhesive, the high-temperature-resistant and high-impedance pressure-sensitive adhesive is obtained. According to the novel supporting film, the polarity of the SBS main body material is low, the excellent electrical insulation performance is provided, the supporting film body has the characteristic of high impedance, and therefore the requirement for high impedance of the supporting film in a copper bar friction experiment is met; in addition, after the acrylic copolymer with high carboxyl content is grafted, a large number of crosslinking points can be provided, and the overall crosslinking degree is greatly increased after thermocuring, so that the high-temperature modulus of the adhesive layer is improved, and the adhesive layer is endowed with the characteristic of high-temperature deformation resistance.
Owner:SUZHOU SHIHUA NEW MATERIAL TECH

Pulsing release module, pulsing release resin tank, and 3D printing device and printing method

The present disclosure relates to a pulsing release module, a pulsing release resin tank, and a 3D printing device and printing method. The pulsing release module comprises a resin tank assembly, a support assembly and a pulse gas supply assembly, wherein the resin tank assembly is provided with a release film; the support assembly is arranged below the resin tank assembly, the support assembly is provided with a support member, and a first preset distance is provided between the support member and the release film in a height direction and is configured to form a gas cavity between the support member and the release film; a gas inlet and a gas outlet, which are in communication with the gas cavity, are provided in the support member; and the pulse gas supply assembly comprises a gas oscillation assembly and a gas conveying line, the gas oscillation assembly being arranged on the gas conveying line, and the gas conveying line being connected to the gas inlet.
Owner:GUANGZHOU HEIGE ZHIZAO INFORMATION TECH CO LTD

Lower supporting film for flexible folding display screen and preparation method of lower supporting film

The invention belongs to the technical field of film materials, and particularly relates to a lower supporting film for a flexible folding display screen and a preparation method of the lower supporting film. The supporting film sequentially comprises a protective film layer, a stainless steel base material layer, an adhesive layer and a release film layer from top to bottom; wherein the adhesive layer is prepared by coating a release film with modified organic silica gel liquid, drying and curing. The ultra-thin stainless steel is used as the base material layer, can resist external force impact and scraping, is low and stable in thermal expansion coefficient, can reduce the influence of environment temperature and humidity on the size of the supporting film, and guarantees the structural consistency of the screen module in long-term use; and through multi-component composite modification of polyurethane-thiazole-organic silicon, the peeling strength of the adhesive layer and stainless steel and the bending frequency of the supporting film are improved, and the service life of the supporting film is prolonged.
Owner:TAICANG ZHANXIN ADHESIVE MATERIAL

Silica gel leather attached polyurethane sponge product and preparation method thereof

The invention provides a silica gel leather attached polyurethane sponge product and a preparation method thereof, and belongs to the technical field of composite material products. The composite material comprises a release film layer, a hand feeling layer, a silica gel leather layer and a polyurethane sponge layer from top to bottom, and the silica gel leather attached polyurethane sponge product is creatively prepared by utilizing the preparation method provided by the invention; the problems that odor / VOC of an existing PVC leather attached polyurethane sponge product and an existing PU leather attached polyurethane sponge product for automobile interiors exceeds the standard, aging, yellowing and falling are prone to occurring, and cleaning and maintenance are not easy are effectively solved, and the problems that genuine leather (cowhide, sheepskin and pigskin) attached polyurethane sponge products are small in quantity and high in price are effectively solved. And a brand new choice is provided for the automotive trim industry.
Owner:HUBEI SHIFENG NEW MATERIALS CO LTD

Photo-curing 3D printer and photo-curing 3D printing method for trough sinking type stripping

A hollow shaft torque motor of the photocuring 3D printer comprises a rotor, a stator and a hollow shaft, and the stator is fixed to a workbench; the lifting pipe is in threaded engagement with the hollow shaft, and the lifting pipe can only reciprocate in the vertical direction; the sleeve is fixed on the stator, the trough is engaged on the sleeve in a threaded manner, and the guide rod on the hollow shaft is slidably arranged in the guide hole of the trough wall in a penetrating manner; when the rotor rotates, the trough reciprocates between the first working position and the second working position, and the lifting pipe reciprocates between the third working position and the fourth working position. When the material groove is located at the first working position and the lifting pipe is located at the third working position, printing is conducted; and when the material groove is located at the third working position and the lifting pipe is located at the fourth working position, the release film is separated from the product model. The invention further discloses a photocuring 3D printing method. The moving distance and speed of the printing platform are reduced through descending of the material groove, abrasion of the ball screw and the lead screw nut is reduced, and the service life of equipment is prolonged.
Owner:NANJING TECH UNIV

Electrified viscosity-reducing adhesive composition, viscosity-reducing adhesive tape and preparation method of viscosity-reducing adhesive tape

The invention discloses a power-on viscosity-reducing adhesive composition, a viscosity-reducing adhesive tape and a preparation method of the viscosity-reducing adhesive tape, and relates to the technical field of adhesive materials. The preparation method comprises the following steps: adding polyurethane acrylate and polybutylene adipate into a planetary stirring kettle, stirring, sequentially adding a PEDOT / PSS solution, a nano core-shell material, a dynamic cross-linking agent, hydrogenated rosin tackifying resin, TPU particles and butylated hydroxytoluene, stirring to obtain mixed glue, and carrying out vacuum defoaming to obtain the electrified viscosity-reducing glue composition. Coating a release film with the electrified viscosity-reducing adhesive composition, carrying out UV curing, and attaching the release film on the other side to obtain the electrified viscosity-reducing adhesive tape. The prepared electrified viscosity-reducing adhesive composition and viscosity-reducing adhesive tape have the advantages of being excellent in mechanical property, sensitive in response, remarkable in stripping force difference before and after electrification, stable at high temperature, stable in circulation, resistant to pollution and the like, nondestructive disassembly and reutilization of devices are achieved by regulating and controlling the adhesive force through an electric field, and the electrified viscosity-reducing adhesive composition and viscosity-reducing adhesive tape can be applied to an electric response assembly scene.
Owner:KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD

Optical-grade PET release film as well as preparation method and application thereof

The invention discloses an optical-grade PET release film and a preparation method and application thereof, and belongs to the technical field of PET release liners.The preparation method comprises the steps that organic silicon resin, polyacrylate and functional silicone oil serve as raw materials, hexadecafluorophthalocyanine copper serves as a catalyst, sodium hydroxide provides hydroxyl anions, and hydroxyl-containing fluorinated hydroxyaniline is obtained; amino groups on the surface of fluorinated hydroxyaniline react with carboxyl groups of graphene oxide and are grafted on the surface of graphene oxide, then hydroxyl groups in the fluorinated hydroxyaniline and carboxyl groups of acrylic acid are subjected to esterification reaction under the action of a catalyst, so that acrylic acid is grafted on fluorinated modified graphene oxide, and the fluorinated modified graphene oxide is obtained. Therefore, hydroxyl and epoxy functional groups on the surface of the graphene oxide are consumed, hindering of electron transmission is reduced, the conductivity of the release film is improved, and the antistatic requirement of the release film is met.
Owner:JIANGYIN HUAMEI PHOTOELECTRIC SCI & TECH CO LTD

Nasal dilator

This invention relates to a nasal dilator. An object of this invention is to provide a nasal dilator wherein adhesive substance layer is prevented from adhering to a top region of a nose bridge, and which does not need a dedicated member for preventing the adhesion of the substance layer to the top region of the nose bridge. The object is achieved by a nasal dilator comprising a flexible strip, an adhesive substance layer formed on one surface of the flexible strip and a release liner covering the adhesive substance layer, wherein the adhesive substance layer is formed on entire surface of said one surface of the flexible strip, the release liner is divided into three pieces, a first of which covers one longitudinal end region of the adhesive substance layer, a second of which covers longitudinal middle region of the adhesive substance layer and a third of which covers another longitudinal end region of the adhesive substance layer.
Owner:SAKAGUCHI TERUKO

Hot-melt double-sided adhesive tape and preparation process thereof

The invention discloses a hot-melt double-sided adhesive tape and a preparation process thereof, and belongs to the technical field of double-sided adhesive tapes, the double-sided adhesive tape comprises a hot-melt adhesive layer and a release film, and the hot-melt adhesive layer is obtained by coating a hot-melt adhesive on the release film and then drying; the hot melt adhesive comprises the following raw materials in parts by weight: 80-95 parts of matrix resin, 10 parts of tackifying resin and 10-20 parts of modified magnetic boron nitride, the preparation method comprises the following steps: weighing a hot melt adhesive raw material, adding a solvent, preparing a hot melt adhesive solution with the solid content of 20-40wt%, coating one surface of the release film with the hot melt adhesive solution, and drying under the action of an external uniform magnetic field. The hot melt adhesive layer contains modified magnetic boron nitride, and is directionally arranged on the surface of the release film under the action of a magnetic field in the preparation process of the hot melt adhesive layer, so that the interface thermal resistance is reduced, the heat-conducting property of the coating is remarkably improved, and the heat dissipation performance of the lithium battery is improved.
Owner:GUANGDE XINHUI NEW MATERIAL TECH CO LTD

Film pasting device

The utility model relates to the technical field of film pasting equipment, in particular to a film pasting device which comprises a dust-free bin shell used for connecting a screen film and a mobile terminal, the screen film is provided with a positioning film, a protective film, a release film and a brace which are sequentially arranged in an attached mode, and a double-sided adhesive accessory is attached to one side between the positioning film and the release film. A through hole is formed in one side, close to the double-sided adhesive part, of the positioning film, so that the double-sided adhesive part between the positioning film and the release film is located right above the through hole, in a working state, the release film and the double-sided adhesive part are sunken downwards and deformed and penetrate through the through hole, and the bottom surface of the double-sided adhesive part is adhered to the surface of the dust-free bin shell; according to the product, a double-sided adhesive accessory originally located between the dust-free bin shell and the positioning film is abandoned, the through hole is formed in the positioning film, and the double-sided adhesive accessory originally located between the positioning film and the release film penetrates through the positioning film to be adhered to the surface of the dust-free bin shell, so that the effect of an original product is achieved, and the use of one double-sided adhesive accessory is reduced; and the production cost is reduced.
Owner:DONGGUAN PINJIA TECH CO LTD

Vehicle-mounted OCA optical adhesive and preparation method thereof

The invention discloses a preparation method of a vehicle-mounted OCA optical adhesive, and belongs to the technical field of optical adhesive materials. The vehicle-mounted OCA optical adhesive comprises an optical light release film, an acrylic adhesive layer and an optical heavy release film which are sequentially arranged from top to bottom, the preparation method comprises the following steps: mixing and stirring an acrylic pressure-sensitive adhesive, 2-ethylhexyl acrylate, isobornyl acrylate, acryloylmorpholine, dodecyl ester, N-vinyl pyrrolidone, a bridging agent and a photoinitiator, filtering, and defoaming to obtain an acrylic adhesive; and coating a release film with the obtained acrylic adhesive, and irradiating the release film with a halogen lamp to obtain the vehicle-mounted OCA optical cement. The vehicle-mounted OCA optical adhesive prepared by the invention has better high-temperature-resistant and high-temperature-resistant and high-humidity-resistant effects, is simple in preparation process and is suitable for large-scale production.
Owner:TAIHU JINZHANG TECH CO LTD

Printing anomaly detection method of 3D printing equipment, 3D printing equipment and storage medium

The invention provides a printing anomaly detection method of 3D printing equipment, the 3D printing equipment and a storage medium, and relates to the field of 3D printing. The 3D printing equipment comprises a printing platform and a material groove, and the method comprises the steps that the printing platform is controlled to be lifted in the vertical direction so as to drive a model layer on the printing platform to be separated from a release film at the bottom of the material groove; in the lifting process of the printing platform, a detection value used for representing the stress condition of the printing platform is obtained; and according to the detection value, whether the 3D printing equipment has the abnormal condition of model printing failure or not is judged. According to the method, a user can conveniently and timely find the abnormity and take countermeasures according to the abnormity, the problem of printing failure or poor model quality caused by the abnormity is avoided, the production process is more efficient through real-time abnormity detection, the model manufacturing period is shortened, the rejection rate is reduced, manual intervention is not needed, and the production efficiency is improved. And the risk of human error judgment is reduced.
Owner:SHENZHEN ANYCUBIC TECH CO LTD

Electrified viscosity-reducing adhesive tape as well as preparation method and application thereof

The invention discloses a power-on viscosity-reducing adhesive tape and a preparation method and application thereof, and belongs to the technical field of processing of UV adhesive tapes for batteries, the preparation method comprises the following steps: mixing and stirring an acrylate pressure-sensitive adhesive, a UV prepolymer, composite conductive hydrogel, a curing agent, a photoinitiator, a solvent and a leveling agent to obtain conductive glue; and coating the conductive glue on the upper and lower surfaces of the aluminum foil substrate, drying at 80-100 DEG C for 5-6 minutes to obtain a conductive adhesive layer, and adhering release films on the upper and lower surfaces of the conductive adhesive layer to obtain the electrified viscosity-reducing adhesive tape. The synthesized porous carbon has high porosity, and promotes the manganese-doped nano zinc sulfide to emit light to initiate polymerization, crosslinking and curing of the conductive adhesive layer, so that the conductive adhesive layer loses viscosity; nano-silver particles are formed on the surface of the zinc oxide whisker loaded with the porous carbon, so that the pore structure of the porous carbon is refined, and the heat dissipation performance of the electrified viscosity-reducing adhesive tape is improved.
Owner:KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD

Composite glass protection paste for flexible folding screen and preparation method of composite glass protection paste

The invention relates to the technical field of protective films, and particularly discloses a composite glass protective paste for a flexible folding screen and a preparation method of the composite glass protective paste. The composite glass protection paste for the flexible folding screen sequentially comprises a functional base film, a first thermosetting polymer film, a UTG ultrathin glass layer, a second thermosetting polymer film and an OCA adhesive layer from top to bottom, the preparation method of the OCA adhesive layer comprises the following steps: carrying out activating treatment on nano silicon dioxide particles to obtain modified particles with cations on the surfaces; carrying out reaction on the modified particles and molten hydroxy acrylic resin under the ultrasonic action, and carrying out extrusion granulation to obtain elastic acrylic master batches; uniformly mixing the elastic acrylic master batch with a cross-linking agent and a photoinitiator to obtain the acrylic OCA; and coating OCA on one surface of the release film, and performing ultraviolet curing to obtain an OCA layer. According to the composite glass protection paste for the flexible folding screen, the bending resistance of the protection paste is improved.
Owner:TAICANG ZHANXIN ADHESIVE MATERIAL

UV (ultraviolet) visbreaking acid-resistant adhesive tape for thinning flexible glass and preparation process of UV visbreaking acid-resistant adhesive tape

The invention relates to the technical field of adhesive tapes, and particularly discloses a UV (ultraviolet) visbreaking anti-acid adhesive tape for thinning flexible glass and a preparation process of the UV visbreaking anti-acid adhesive tape. A UV viscosity-reducing acid-resistant adhesive tape for thinning flexible glass comprises a base material layer, a pressure-sensitive adhesive layer and a release film layer which are stacked in sequence, and the pressure-sensitive adhesive layer is prepared from the following raw materials: 85-120 parts by mass of an acrylate copolymer, 3-5 parts by mass of a cross-linking agent, 1.5-2.5 parts by mass of a photoinitiator, 2-5 parts by mass of an acid-resistant nano filler and 0.2-0.4 part by mass of an amine catalyst; the acrylate copolymer is prepared from the following raw materials in parts by mass: 20-30 parts of an imidazolinyl-containing monomer, 15-25 parts of a large-steric-hindrance alkyl-containing monomer, 45-55 parts of a flexible monomer and 5-10 parts of a carboxyl-containing monomer. The UV visbreaking acid-resistant agent prepared by the invention has relatively good acid resistance and reliable UV visbreaking and high initial bonding balance.
Owner:TAICANG DIKELI TECH CO LTD

Bidirectional stripping 3D printer and 3D printing method

The 3D printer comprises a workbench and a resin pump, a printing platform is installed on a transmission mechanism located on the workbench, a liquid guide hole is formed in the printing platform, an inlet of the resin pump communicates with an inner cavity of a material groove, and an outlet of the resin pump communicates with the liquid guide hole; the model is bonded on the printing platform, a demolding hole is formed in the model, the upper end of the demolding hole is communicated with the liquid guide hole, and the demolding hole at least downwards penetrates through one curing layer; and after a curing layer penetrated by one demolding hole is completed, under the driving of a resin pump, the photosensitive resin in the material groove can be fed into the liquid guide hole, so that the release film is stripped from the curing layer from inside to outside along the edge of the lower end of the demolding hole. The invention further discloses a 3D printing method. The photosensitive resin in the trough is injected into the demolding hole in the model through the resin pump, so that the model can peel off the release film from the inner direction and the outer direction at the same time, and the peeling speed and the printing speed of the release film are increased.
Owner:NANJING TECH UNIV

Organic silicon release film and preparation method thereof

The invention belongs to the technical field of release film preparation, and particularly relates to an organosilicon release film and a preparation method thereof.The epoxy-terminated fluorine-containing polysiloxane serves as a main agent of a release agent and is blended with a curing agent and an acid catalyst to form the release agent, and the mass ratio of the epoxy-terminated fluorine-containing polysiloxane to the curing agent to the acid catalyst is 8: (1.5-1.8): (0.8-1); and coating a PE substrate with the diluted release agent by using a film coating rod, baking at 80 DEG C for 2 minutes, then curing at 60 DEG C for 36 hours, and curing the release agent on the PE film to obtain the release film. The epoxy group in the epoxy-terminated fluorine-containing polysiloxane reacts with the curing agent to generate a cured product with a three-dimensional cross-linked structure, a layer of thin film is formed on the surface of the PE film, and the adhesive force with a release film is better.
Owner:SHANDONG JINSHOUFENG NEW MATERIAL CO LTD

Self-repairing invisible car cover and preparation method thereof

The invention relates to a self-repairing invisible car cover and a preparation method thereof, and relates to the technical field of automobile material processing, and the self-repairing invisible car cover comprises the following components in parts by mass: 20-40 parts of fluorine-containing polyol, 15-30 parts of polyisocyanate, 5-10 parts of a composite chain extender, 10-20 parts of self-repairing microcapsules, 1-3 parts of an initiator and 30-50 parts of a solvent. The preparation method comprises the following steps: preparing a self-repairing coating; coating the surface of the transparent substrate with an adhesive to obtain an adhesive layer, and covering the adhesive layer with a release film to obtain a semi-finished automobile cover; and the self-repairing coating is applied to the face, away from the release film, of the semi-finished automobile cover, heating and curing are conducted, the semi-finished automobile cover with a self-repairing coating is obtained, the self-repairing coating is coated with a protective film, and the self-repairing invisible automobile cover is obtained after curing. The automobile cover has the effect of improving the self-repairing performance of the automobile cover, and the automobile cover has good weather resistance, tensile resistance and puncture resistance.
Owner:NANTONG NAR MATERIAL TECH CO LTD

Method of manufacturing a reinforced portion and reinforced

The invention relates to a method of manufacturing a reinforced portion and a reinforced vehicle. A method of manufacturing a reinforcement portion of a vehicle includes applying a release film directly onto a surface of the vehicle, applying a first metal layer directly or indirectly onto the release film, applying a curable adhesive layer directly onto the first metal layer, and applying a second metal layer directly onto the curable adhesive layer. The method further includes applying pressure to the first metal layer, the curable adhesive layer, and the second metal layer to press the first metal layer, the curable adhesive layer, and the second metal layer against the surface. The method further includes curing the curable adhesive layer when pressure is applied to the curable adhesive layer to form the reinforced portion. The method additionally includes removing the reinforcement portion from the surface after curing the curable adhesive layer.
Owner:THE BOEING CO

Trough with film stretching device and DLP (Digital Light Processing) resin printer

The utility model relates to a trough with a film stretching device and a DLP (Digital Light Processing) resin printer, which comprise a trough frame and a release film, and are characterized in that the release film is stretched on one end surface of the trough frame, the release film is pressed on the trough frame through a film fixing frame, the periphery of one end of the trough frame close to the release film is fixedly provided with a stretching strip, and the stretching strip is fixed on the other end surface of the trough frame close to the release film. A tensioning strip pressing plate is fixed to the lower end face of the tensioning strip, and the tensioning strip pressing plate is pressed on the release film. According to the DLP resin printer, the trough of the printer is provided with the film tightening device, so that the release film can be conveniently mounted, tightened and replaced, the consistency of film replacement can be ensured, the printing precision and the printing quality are improved, and the use convenience of the resin printer is improved.
Owner:NANJING CHAMLION LASER TECH CO LTD

Polarizer for brightening sheet roll material compounding and preparation method of brightening sheet

The invention discloses a polaroid for brightening sheet roll material compounding. The polaroid comprises a first release film, pressure-sensitive glue, a first cellulose triacetate layer, a polyvinyl alcohol layer, a second cellulose triacetate layer, a special functional layer and a second release film, the polyvinyl alcohol layer is positioned between the first cellulose triacetate layer and the second cellulose triacetate layer; the first release film covers the surface of one side of the first cellulose triacetate layer through pressure-sensitive glue; the special functional layer is coated on the surface of one side of the second cellulose triacetate layer, the second release film covers the special functional layer, and the special functional layer is prepared from an azobenzene side chain type liquid crystal polymer or a polymer stable liquid crystal material. According to the invention, the direct on-line roll-to-roll composite production of the polaroid roll material and the brightness enhancement film roll material is realized, additional manual slitting, splicing and material receiving procedures are not needed, and the product yield and the production efficiency are greatly improved.
Owner:SHENZHEN QIANHAI YUZHUO TECH CO LTD

Intelligent multi-purpose UV release film high-speed coating compound machine

The utility model belongs to the technical field of coating compound machines, and particularly relates to an intelligent multipurpose high-speed UV (ultraviolet) release film coating compound machine which comprises two swing roller type tension detection automatic deviation correction unreeling machines, an active corona machine, a gap-adjustable release film coating compound machine, a five-roller coating machine, a glue supply machine, a conveying roller wheel, a press-fit cooling device and a disc reeling device, five-roller coating is adopted, a UV pressing mechanism is adopted, the coating composite effect is better, an LED-UV lamp and a UV mercury lamp are arranged below the pressing device, and the LED-UV lamp and the UV mercury lamp can be pulled and replaced on the side edge; the second layer of release film is used for compounding the base film coated with the release glue, nitrogen storage is not needed, the glue in the compounded product looks bright, and the coated surface is smooth and flat. Automatic deviation correction, full-automatic cutting, auxiliary traction and a tension swing unwinding mechanism are achieved, and the coating effect is better. The coating machine can also be used as a stripping machine, the coating speed is higher, the coating amount is smaller, the coating is very thin, the working efficiency is improved, and the production cost is saved.
Owner:GUANGDONG SHANZHANG MASCH CO LTD

Electrolyte-resistant double-sided tape for environment-friendly new energy lithium battery

The invention relates to the technical field of adhesive tapes, and discloses an electrolyte-resistant double-sided adhesive tape for an environment-friendly new energy lithium battery, the double-sided adhesive tape comprises a base film layer, adhesive film layers and release films, the adhesive film layers are distributed on two sides of the base film layer, the release films are distributed on two sides of the adhesive film layers, and the adhesive film layers are formed by coating electrolyte-resistant adhesives on two sides of the base film layer. The electrolyte-resistant adhesive is prepared by carrying out cross-linking polymerization on acrylic monomers such as methyl methacrylate and hydroxyethyl methylacrylate under the action of an initiator and a cross-linking agent, and the cross-linking agent is a macromolecular substance which is connected through a silicon-oxygen bond and has a cyclohexyl hexafluoropropane-tertiary butyl block alternating structure. After the special structure of the cross-linking agent is introduced into the molecular chain of the adhesive, the adhesive property, high temperature resistance and electrolyte resistance of the adhesive can be obviously enhanced.
Owner:ENPING YINGJIAFENG ADHESIVE PROD CO LTD