176 results about "Pet substrate" patented technology

The present invention relates to the technical field of tackified adhesive films and specifically to a tackified adhesive film. The tackified adhesive film comprises a substrate layer and a UV-tackified adhesive layer applied onto the substrate layer. The UV-tackified adhesive layer is prepared by using a modified polyester resin, which is obtained by the graft polymerization of a hydroxyl-terminated polyester resin, butyl methacrylate, and isocyanatoethyl methacrylate, as a main resin and mixing the main resin with a tackifying resin, a photo-curing agent and the like. The UV-tackified adhesive layer has relatively high cohesive strength and relatively good adhesion to a PET substrate. Before a UV-induced tackification reaction, an initial peel force is not significantly increased with the extension of standing time, so that an adhesive tape can be easily removed without causing damage and contamination such as residual adhesive to an adherend . After the UV-induced tackification reaction, the modified polyester resin can improve the bonding strength between the adhesive tape and the adherend.

The invention relates to an automobile scratch-resistant protective film and a preparation method thereof, and belongs to the technical field of automobile protective materials. The material is prepared from modified nano aluminum oxide, modified polyurethane acrylate, polyurethane acrylate, a photoinitiator, a flatting agent, an antioxidant and a solvent, the modified nano aluminum oxide is prepared through an esterification reaction of nano alpha-Al2O3 and stearic acid, and the hardness and wear resistance of a coating are enhanced; and the modified polyurethane acrylate is prepared by reacting a polyurethane prepolymer with a hydroxyl compound, so that the interface bonding force with the nano particles and the flexibility of the coating are improved. The preparation method comprises the following steps: dispersing modified nano aluminum oxide into a solvent, sequentially adding other components, and uniformly mixing to obtain functional coating slurry; the surface of a PET base material is coated with the slurry, and ultraviolet curing molding is performed after pre-drying. The prepared protective material has the characteristics of high hardness, scratch resistance, strong adhesive force with automobile paint and excellent weather resistance, and is suitable for automobile surface protection.

The utility model discloses a release film with low stripping force. The release film consists of a PET (Polyethylene Terephthalate) base material, a molybdenum disulfide layer deposited on the surface of the PET base material and a self-repairing coating coated on the outer side of the molybdenum disulfide layer. The utility model further provides a preparation system for the low-stripping-force release film. The preparation system comprises an ultrasonic cleaning machine, a drying machine, a chemical vapor deposition reactor, a mixing machine, a spin-coating machine, a drying box and a curing oven, an outlet of the ultrasonic cleaning machine is connected with the drying machine, an outlet of the drying machine is connected with the chemical vapor deposition reactor, an outlet of the chemical vapor deposition reactor is connected with the spin coater, an outlet of the mixing machine is also connected with the spin coater, an outlet of the spin coater is connected with the drying box, and an outlet of the drying box is connected with the curing oven. Through the combined design of the multi-layer structure of the molybdenum disulfide layer and the self-repairing coating, the release film is easy to strip, adhesion residues are reduced, and the use experience of a product is improved.

The invention discloses a polarization-sensitive narrow-band solar blind self-driven photoelectric detector and a preparation method thereof, and belongs to the technical field of semiconductor photoelectric devices. The detector comprises an n-type conductive single Ga2O3 micron wire, a p-type conductive GaN substrate, a PET substrate and a two-dimensional graphene film. According to the device, Ni / Au alloy is selected as a positive electrode, and a two-dimensional graphene film is used as a transparent window of ultraviolet solar blind light and a negative electrode of the device. By means of built-in potential formed by the n-Ga2O3 / p-GaN heterojunction and a Schottky barrier of Ga2O3 / Graphene, high-sensitivity detection of solar-blind ultraviolet light under the self-driving condition is achieved. The device has relatively high responsivity, specific detection rate and external quantum efficiency. The preparation method comprises the following steps: cleaning the GaN substrate, evaporating the Ni / Au electrode, adhering the PET substrate with the channel, transferring the Ga2O3 micron wire to form the heterojunction, and transferring and curing the graphene electrode. The device has the characteristics of polarization sensitivity and low power consumption, and can be applied to the fields of ultraviolet solar blind band encryption communication and environment monitoring.

The invention discloses a three-dimensional force flexible tactile sensor and a preparation method thereof, the three-dimensional force flexible tactile sensor comprises a layered structure, a top electrode layer and a bottom electrode layer, the top electrode layer comprises a second PET substrate and a top copper electrode, the top copper electrode is installed below the second PET substrate, the top copper electrode is a square common electrode, a copper film with the thickness of 0.006 mm is adopted, the side length is 20 mm, and the thickness of the top copper electrode is 20 mm; the top copper electrode is connected with an external lead through a conductive adhesive; the elastic dielectric layer is located below the top electrode layer and is made of an Ecoflex00-30 material, the elastic dielectric layer comprises micro circular truncated cone structures arranged in an array mode, the height of each micro circular truncated cone is 0.9 mm, and the interval between every two micro circular truncated cones is 1 mm; and the bottom electrode layer comprises a first PET substrate and a bottom copper electrode. The sensor has the advantages of high sensitivity, wide temperature range stability, lightness, thinness, easiness in integration and three-dimensional force synchronous decoupling, and is simple in preparation process and low in cost.

The invention relates to the field of enzyme engineering, and provides a BhrPETase variant capable of improving stability through site-specific replacement under the background of Bhr6M (SEQ ID NO: 1) and application of the BhrPETase variant, and the replacement is M57I and / or S184H, preferably double mutation M57I / S184H. The variant shows remarkable thermal stability and storage stability under a unified measurement caliber: the condition t1 / 2 at 90 DEG C is greater than or equal to 400 minutes, the condition t1 / 2 at 70 DEG C is greater than or equal to 7 days, and the residual activity after 30 days of storage at 30 DEG C is greater than or equal to 90%. The invention also discloses a nucleic acid encoding the variant, a vector, a recombinant host, an enzyme preparation, and a method for depolymerizing PET and a copolymer thereof in a process temperature range of 70-90 DEG C. Compared with a control Bhr6M, the variant maintains more lasting activity in high-temperature and long-period operation, is suitable for PET substrates with different forms and crystallinity, reduces the enzyme supplementing frequency and improves the stability of a device.

The invention provides a PET enhanced PE foam composite material which comprises a PE foam base material layer, a bonding layer and a PET base material layer, the bonding layer is located between the PE foam base material layer and the PET base material layer, the PE foam base material layer is made of PE foam with the density being 0.05-0.3 g / cm < 3 > and the average cell diameter being 50-200 microns, the bonding layer is made of an acrylate adhesive with the thickness being 0.01-0.05 mm, and the PET base material layer is made of a PET adhesive with the thickness being 0.01-0.05 mm. The PET base material layer adopts a transparent PET film original film with the thickness of 0.01-0.1 mm, the prepared foam composite material has excellent mechanical properties, excellent structural stability and multifunctional integration, the adopted preparation method is simple in process, controllable in operation, clear in parameters of each step and suitable for large-scale industrial production, and by accurately controlling the process parameters, the foam composite material can be used for preparing a foam composite material with good mechanical properties. And the composite material with excellent performance can be stably produced.

The utility model relates to the technical field of printed label stickers, in particular to a flame-retardant printed label sticker which comprises a label sticker body, and the label sticker body is composed of a bottom paper coating, a bottom paper layer, an adhesive layer, a thermosensitive layer, a transparent PET base material layer, a printing layer, a flame-retardant layer, an anti-ultraviolet agent layer and a surface laminating layer. The utility model has the advantages that the sticker is guaranteed to be sufficiently supported, and meanwhile, the sticker is prevented from discoloring or fading under the irradiation of sunlight, so that the quality of the sticker is not influenced.

The present application discloses an anti-blue light OCA optical composition for screen and a preparation method thereof, comprising an OCA adhesive body. The OCA adhesive body comprises a first release film, an OCA hybrid blue light barrier film, an optical PET substrate, a silicone film, and a second release film. The first release film comprises the following components by weight: 25-35 parts of nano cobalt oxide.

This invention belongs to the field of optical film technology, specifically high-definition optical composite coating films and their preparation methods. This invention aims to solve the problem that existing optical composite films cannot simultaneously achieve both optical enhancement and viewing angle. This invention involves mixing a nano-conductive polymer, a silicone additive, and a diffusion liquid to obtain a diffusion layer coating liquid; dispersing PMMA-PS microspheres in the diffusion layer coating liquid to obtain a composite coating liquid; mixing a prism layer resin and nano-silica to obtain a prism layer coating liquid; coating the back of a PET substrate with the composite coating liquid and passing it through a microlens array to obtain a diffusion layer; coating the front of the substrate with the prism layer coating liquid to obtain a prism layer; and finally, after curing, attaching a PE protective film to one side of the prism layer to obtain the composite coating film product. The composite coating film prepared by this invention has excellent optical enhancement, a good viewing angle, and effectively suppresses moiré patterns.

The invention belongs to the technical field of variable optical films, discloses a multifunctional composite variable optical film and a preparation method thereof, and aims at solving the problems that an existing variable optical film is single in function, unstable in optical performance, poor in flexibility and bending resistance and low in process precision. The preparation method comprises the following steps: pre-treating the base material: sequentially carrying out plasma cleaning on the PET base material and sputtering the ITO conductive layer, sequentially carrying out ultrasonic cleaning on the glass substrate and preparing the YAG powder enhancement layer; the coating of the functional layer is that the surface of the ITO layer of the PET-ITO composite base material is coated with a PDLC layer and an electrochromic layer, and the surface of the YAG layer of the YAG-glass composite base material is coated with a temperature-sensitive layer; the compounding and curing are as follows: firstly laminating after aligning and compounding, and then carrying out UV segmented curing. The light transmittance of the product can be adjusted by 5-95% in an electric field, and the infrared reflectivity is gt; and after the ITO layer is bent for 1000 times and the bending radius is 5mm, the resistance change rate is less than or equal to 10%, so that the ITO film is suitable for a sunshade film for a vehicle and an intelligent window of a building.

The invention discloses a preparation method of a dry film, and belongs to the technical field of medical films. The technical problems that in the prior art, a coloring agent adopted by a dry film is poor in color changing effect, and an adopted latex solution adhesive is poor in film forming property are solved. The preparation method of the dry film comprises the following steps: coating a PET (Polyethylene Terephthalate) base material with a modified SBR (Styrene Butadiene Rubber) latex solution to form a coating; the coating is coated with a photosensitive layer material to form a combined structure; drying and curing the combined structure, and laminating a polyurethane film to prepare a dry film; and the photosensitive layer material comprises thermosensitive dye microcapsules, a color developing agent and the like. According to the thermosensitive dye microcapsule, an intermediate A and 6, 7-dihydroxy-3-[(Z)-1-hydroxy-3-ketobutyl-1-alkenyl]-4-oxo-2, 3-dihydrochromene-5-carboxylic acid are subjected to a reaction, and a colored dye is synthesized; the prepared dry film has the advantages of being good in color changing effect, good in thermal performance and low in haze degree.

This invention discloses a fully automated screen printing method for labels based on CCD visual alignment, specifically including the following steps: material feeding control, substrate pretreatment, CCD visual alignment, dual CCD compensation printing, continuous alignment and overprinting, low-temperature curing, cooling, shaping and leveling, CCD visual final inspection, slitting and rewinding, and packaging output. This fully automated screen printing method for labels based on CCD visual alignment achieves precise alignment and real-time offset compensation between the screen and the substrate through dual CCD visual monitoring, improving overprinting accuracy. It employs ambient pressure low-temperature plasma pretreatment to enhance substrate adhesion, and three-stage low-temperature curing to prevent PET substrate deformation. Combined with full-width CCD final inspection to automatically remove defective products, this method achieves fully automated, high-precision, and high-stability label printing production, offering advantages such as precise alignment, uniform curing, strict quality control, and high production efficiency.

The invention discloses a double-layer PET composite material for a photovoltaic front plate, a preparation method, a product and application, and belongs to the technical field of PET materials. The technical problem to be solved is to obtain the double-layer PET composite material for the photovoltaic front panel, wherein the initial peel strength of the double-layer PET composite material is greater than or equal to 10N / cm, the strength attenuation rate of the double-layer PET composite material is less than 22.86% after the double-layer PET composite material is subjected to 85 DEG C / 85% RH damp-heat aging for 1000h, and the light transmittance aging attenuation rate of the double-layer PET composite material is less than 2.9%. According to the invention, the PET substrate is modified by adopting a mode of grafting the carboxyl-containing monomer on the surface of the plasma, and a specific adhesive formula is selected, so that the interlayer stripping force and the weather-proof effect of the PET are improved, and the problems that the aging attenuation of the stripping force between two layers of PET is fast, and the weather-proof property is poor are solved.

The invention discloses optical film transfer printing glue applied to a grating structure. The invention discloses a water-based adhesive which is composed of the following components: 3%-16% of epoxy modified resin, 6%-12% of polyurethane resin, 4%-18% of organosilicone acrylic resin, 4%-18% of polycarbonate resin, 13%-18% of (2) propylene oxide neopentyl glycol diacrylate, 8%-16% of 10 (ethyoxyl) bisphenol a dimethylacrylic acid, 4%-8% of 30 (ethyoxyl) bisphenol a acrylic acid, 12% of o-phenyl phenoxyethyl acrylate and 4% of an initiator. 6% of a reaction type demoulding auxiliary agent and 0.1-5% of a defoaming agent. The formula of the UV transfer printing glue is optimized, so that the prepared optical film transfer printing glue can be well demoulded without residual glue and is peep-proof film transfer printing glue suitable for deep structures without residual glue, the film surface is free of wiredrawing lines and fine, and the adhesive force to a PET (Polyethylene Terephthalate) base material is good.

This invention relates to the field of thin film preparation, and discloses a method and system for preparing dimming films based on PET and liquid crystal. The method includes: first, acquiring the transmittance parameters of the PET substrate and the phase transition temperature data of the liquid crystal material; constructing an interlayer framework; forming an activated interface layer on the surface of the PET-liquid crystal composite through plasma treatment; coating a liquid crystal dispersion to obtain a pre-cured film; gradient curing based on its thickness distribution data using an ultraviolet light source to form a dimming functional layer; collecting the transmission spectrum curves of the dimming functional layer under different electric field intensities; calculating the duty cycle value of the liquid crystal molecules; configuring a transparent conductive electrode pattern accordingly; and topologically designing it as a uniquely controlled electrode array. Defect clusters are identified and repaired by calculating the electronic control adjustment value; the dimming attenuation parameters of the repaired film are analyzed; and finally, a PET-liquid crystal composite thin film preparation scheme is formulated. This invention can improve the preparation efficiency of dimming films.

The invention belongs to the technical field of electrochromic materials and polymer composite films, and particularly relates to PET (Polyethylene Terephthalate) for an electrochromic dimming film and a preparation method of the PET. The problem that stripping easily occurs in recycling due to insufficient adhesive force between a PET base material and a conductive layer is solved. The preparation method comprises the following steps: performing chemical activation and nanoscale physical roughening on a PET base material through ultraviolet-ozone synergistic treatment, and then coating a triblock copolymer interface layer; after the interface layer is annealed in a toluene steam atmosphere, a gradient interface layer with a vertical phase separation structure can be formed, and PGMA blocks are enriched on the surface; and a firm covalent bond connection and interpenetrating network structure is formed at an interface by reacting with a material coated with an amino-containing functional group and carrying out thermocuring.

The utility model discloses a UV (ultraviolet) curing film which comprises a high-temperature protective film with the thickness of 5-15 microns; the thickness of the AR film is 20-50 [mu] m; the adhesive force of the UVOCA adhesive film to the PET base material is 3000-3500 gf / in, and the thickness of the UVOCA adhesive film is 40-90 microns; the thickness of the PET base material is 20-50 [mu] m; the stripping force of the silica gel coating on AF glass is 20-50 gf / in, and the thickness of the silica gel coating is 10-50 microns; the release force of the fluorine release film is 2-8 gf / in, and the thickness of the fluorine release film is 50-100 microns. The UV curing film is simple in structure, through good thickness control and design scheme, the UV curing film has better application performance and comfort in application of electronic products, the optical display effect is better, meanwhile, the thickness of an adhesive layer is controlled, residual adhesive is not prone to occurring when the adhesive layer is removed due to excessive adhesion, and the service life of the UV curing film is prolonged. And large-scale application and rapid maintenance in production and maintenance of the electronic equipment are facilitated.

The application provides a high-flexibility electrolyte-resistant termination adhesive tape and a preparation method thereof. The termination adhesive tape comprises, from bottom to top, a non-silicon release agent coating layer, a PET substrate layer and an acrylic pressure-sensitive adhesive. The preparation raw material of the acrylic pressure-sensitive adhesive comprises the following components in parts by weight: modified polyacrylic acid resin 50-100 parts, curing agent 1-10 parts, functional additive 1-10 parts, pigment 1-5 parts and solvent 50-100 parts. The termination adhesive tape prepared by the application has the advantages of high viscosity, good flexibility, electrolyte corrosion resistance, high temperature resistance and the like, and can be better insulated and fixed at the termination position of a battery cell, thereby preventing contact short circuit, improving the service life and safety of the battery.

The invention discloses a preparation method of an RFID (Radio Frequency Identification Device) antenna, which comprises the following steps of: coating a low-viscosity water-based adhesive on a release surface of release paper to form an adhesive layer, and compounding an aluminum foil on the adhesive layer to obtain a composite foil material; according to the design pattern of the RFID antenna, the aluminum foil layer on the composite foil is subjected to precise die cutting, and a needed antenna pattern and a waste area are formed; the aluminum foil in the waste area is removed, and the antenna pattern is left to be attached to the release paper; the surface of the PET base material is coated with a high-viscosity permanent adhesive, and the release paper bearing the antenna pattern is attached to the PET base material in an aligned mode, so that the antenna pattern is firmly combined with the permanent adhesive; and finally, the antenna pattern is transferred to the PET base material by stripping the release paper. And slitting the PET base material on which the antenna pattern is transferred to obtain the RFID antenna. Precise die cutting is achieved by temporarily fixing the aluminum foil through the low-viscosity adhesive layer, then pattern transfer is completed through the high-viscosity adhesive layer, and the problem of transfer defects caused by adhesive layer viscosity contradiction in a traditional process is solved.

The utility model discloses an antistatic PET (Polyethylene Terephthalate) sheet and relates to the technical field of sheets. The antistatic PET sheet material comprises a sheet material main body, and the sheet material main body comprises a PET base material; the functional layer is compounded on the surface of the top of the PET base material, and the functional layer is used for improving the antistatic strength and the tearing strength of the sheet main body; the first wear-resistant layer is compounded on the surface of the top of the functional layer, and the first wear-resistant layer is used for enhancing the wear-resistant strength of the surface of the top of the sheet main body; the second wear-resistant layer is compounded on the surface of the bottom of the PET base material, and the second wear-resistant layer is used for enhancing the wear-resistant strength of the surface of the bottom of the sheet main body; according to the antistatic sheet material, the antistatic effect of the sheet material main body can be improved, so that the influence of static electricity on the sheet material main body can be reduced, meanwhile, the structural strength of the sheet material main body can be enhanced, and the service life of the sheet material main body can be prolonged.

The utility model discloses a PET base material potentiometer circuit which comprises an upper circuit and a lower circuit, interlayer glue is arranged between the upper circuit and the lower circuit, back glue is arranged below the lower circuit, the upper circuit is composed of an upper circuit base material, a first silver paste layer and an upper circuit insulating oil layer, and the lower circuit is composed of a lower circuit base material, a second silver paste layer and a lower circuit insulating oil layer. The upper circuit substrate, the first silver paste layer and the upper circuit insulating oil layer are sequentially arranged from top to bottom. According to the utility model, silver paste, carbon paste, insulating oil and the like are printed on the upper PET and the lower PET to form an upper circuit and a lower circuit, and then the upper circuit and the lower circuit are adhered through the double faced adhesive tape to form a resistor loop, so that the function of the potentiometer is realized; a plurality of potentiometers can be unified in the same circuit, the thickness of the product is not more than 1mm, the cost is low, the potentiometer can be freely designed and combined, even a special-shaped potentiometer can be designed, and the degree of freedom of design is improved.

The present disclosure relates to a technical field of new energy power battery pack and energy storage, and provides an acquisition and integration assembly of a battery module with flame-retardant property and a preparation method. The acquisition and integration assembly includes a PET substrate film coated with a flame-retardant adhesive layer and an acquisition circuit assembly hot-press encapsulated on one side of the flame-retardant adhesive layer of the PET substrate film; the flame-retardant adhesive layer includes following components in parts by weight: 20 to 80 parts of a thermally curable resin, 5 to 20 parts of a curing agent, and 20 to 80 parts of a flame retardant. The acquisition circuit assembly is connected with each conductive connection busbar by FPC, FFC, FDC, or FCC, and is formed by integral hot-press encapsulating and curing after being adhered and fixed with a PET base film coated with a flame-retardant adhesive layer.

The invention discloses a graphene heating film and a graphene heating sheet based on the graphene heating film, the heating film sequentially comprises a base material PET film, a transfer layer, a packaging layer, a heating layer, an insulating layer, an aluminum plating layer and an adhesive layer from bottom to top, and the graphene heating sheet can be obtained by compounding the graphene heating film and a substrate through a hot-pressing compounding-stripping transfer process. The graphene-carbon nanotube-conductive carbon black composite conductive network and semi-cured adhesive layer system is designed, so that the compactness, the protection property and the flexibility of the heating film are improved, the heating uniformity and the heat efficiency are enhanced, the energy consumption and the cost are reduced, the reutilization of the PET base material and the green recovery of the material are realized, and the graphene-carbon nanotube-conductive carbon black composite heating film is suitable for various substrate materials and has a wide application prospect. And the large-scale mass production requirement is met.

This invention belongs to the field of polymer material modification technology and provides a graphene composite aerogel modified PET material and its synthesis process. The synthesis process includes: (1) preparation of graphene composite aerogel: adding double-terminated epoxy-modified polyethylene glycol and nano-hydroxyapatite to a dispersion of graphene oxide, stirring and mixing, then adding triethanolamine, continuing to stir to obtain a premixed system, then adding ascorbic acid and polyethylene glycol 400, followed by hydrothermal reaction, aging and freezing drying; (2) preparation of modified PET material: after activating the PET material to obtain a PET substrate, a graphene composite aerogel slurry is prepared, the slurry is coated on the surface of the PET substrate, then hot air setting, low temperature hot pressing and bonding, and winding and cutting are performed to obtain the final product. This synthesis process can achieve uniform dispersion of aerogel in the PET matrix and tight interfacial bonding, simultaneously improving the mechanical strength, thermal stability and thermal insulation performance of the PET material, and can meet the needs of industrial production.

The invention relates to the field of high polymer materials, and particularly discloses a high-temperature-resistant and high-humidity-resistant antistatic prime coat liquid, an antistatic coating and a preparation method thereof. The preparation method comprises the following steps: taking a poly (3, 4-ethylenedioxythiophene)-polystyrolsulfon acid (PEDOT: PSS) antistatic primer solution as a main agent, and adding thermosetting waterborne polyurethane, a doped organic solvent, a pH regulator, a surfactant, a silane coupling agent, a polyfunctional group aziridine cross-linking agent and a diluent formed by blending water and isopropanol to prepare the antistatic primer solution; and coating the PET base material through an anilox roller to obtain the PEDOT: PSS antistatic coating. According to the invention, the high temperature resistance, high humidity resistance, friction resistance and solvent resistance of the PEDOT: PSS antistatic coating are enhanced, and the problem that the antistatic performance of the traditional PEDOT: PSS antistatic coating is reduced after common wiping and solvent wiping under high temperature and high humidity conditions is effectively solved.

The invention relates to the technical field of anti-dazzle films, in particular to a flexible anti-dazzle film with a super-hydrophobic surface and a preparation method and application of the flexible anti-dazzle film. Comprising a PET substrate, PU nano-fibers forming a network are embedded in the PET substrate, a fluorinated titanium dioxide nano-particle coating is arranged on the surface of the PET substrate, the light transmittance of the prepared flexible anti-glare composite film can reach 92.1%, the haze can reach 93.3% and is far better than that of a commercial anti-glare film in the prior art, and meanwhile the flexible anti-glare composite film has the advantages that the super-hydrophobicity is achieved, the water contact angle is 165 degrees, the sliding angle is 1.2 degrees, and the anti-glare effect is good. The self-cleaning and anti-fog functions are realized.

The invention discloses an acid-free, durable high-temperature-resistant and high-adhesive-force pressure-sensitive adhesive tape and a preparation method thereof. The adhesive tape comprises an adhesive layer, and a PET base material layer and a release layer are attached to the two sides of the adhesive layer respectively; the adhesive layer is prepared from the following raw material components in percentage by mass: 80 to 90 percent of polyacrylate; 0.3-0.4% of a curing agent and 10-20% of tackifying resin. The performance of the pressure-sensitive adhesive tape reaches the initial adhesion (rolling ball method) 13 #, the stripping force reaches 1997 gf / 25 mm (SUS) steel plate, the 180-degree retention force (80 DEG C, 30 days) 0-1 mm, the T-type 90-degree retention force (50 DEG C, 30 days) 5-6 mm, the acid value is close to zero, and the pressure-sensitive adhesive tape is friendly to an adhered object and durable in viscosity.

The invention provides an acrylic acid protective film for a polaroid, the acrylic acid protective film comprises a PET release film, an acrylic acid adhesive layer and a PET base material, the thickness of the PET release film is 50-75 [mu] m, the thickness of the PET base material is 50-75 [mu] m, and the preparation raw material of the acrylic acid adhesive layer comprises the following components by weight: 60-100 parts of an acrylic acid polymer curable precursor; 40-80 parts of an organic solvent; 2-8 parts of a curing agent; 1-3.5 parts of an antistatic agent; 0.05 to 2 parts of a composite anti-aging agent; and 0.05 to 1 part of a surfactant. The low-precipitation effect under the high-temperature and high-humidity conditions is achieved through the electrostatic spinning membrane adsorbed in a gradient mode.

The application provides a kind of easily crystallized ITO capacitive film coating process, comprising the following steps: step S1: selecting low temperature coating chamber, SiOx coating area and ITO coating area are arranged in low temperature coating chamber, wherein x is constant, and 0≦x≦2, PET substrate is placed in unwinding chamber;Step S2: a certain amount of argon is introduced into SiOx coating area, voltage control mode is used, mixed gas of argon and oxygen is introduced into ITO coating area respectively, and oxygen input amount is controlled by gas reaction controller, and the proportion of oxygen input amount in total gas input amount is 1.5-5%, step S3: PET substrate is sequentially passed through SiOx coating area and ITO coating area in unwinding chamber of low temperature coating chamber;Step S4: PET substrate after coating is collected, the application controls suitable coating speed, controls the proportion of oxygen input amount in total gas input amount, ITO target sputtering power and the proportion of In2O3 and SnO2 in ITO target material, and shortens heating aging time.