38 results about "Fluorocarbon Polymers" patented technology

The invention discloses vacuum coating equipment for coating an anti-fingerprint film and a coating method. The coating method comprises the following steps: performing plasma activation treatment on the surface of a glass substrate to form an activated substrate; a gradient transition layer is deposited on the surface of an activated substrate, a Cr-Si composite transition layer with continuously changing components is formed by alternately adjusting sputtering power of a metal target and a non-metal target, a fluorocarbon polymer main film layer is deposited on the transition layer substrate, and C4F8 gas is controlled by adopting a pulse magnetron sputtering process to generate an anti-fingerprint functional layer substrate with uniform thickness; stepwise in-situ annealing treatment is carried out, and a densified composite film layer structure is formed through segmented heating and heat preservation; performing plasma surface modification on the surface to form a low-surface-energy chemical group, and finishing functional treatment; through combination of a composite coating process and an intelligent control technology, cooperative regulation and control of anti-fingerprint film interface strengthening, function construction and structure optimization are realized in a single vacuum environment.

The invention relates to the technical field of semiconductor device manufacturing, in particular to an etching method for improving the steepness of a graphic structure and a grating master mask, and the etching method comprises the following steps: S1, forming a graphic photoresist layer on the surface of a substrate; s2, the patterned photoresist layer is used as a masking layer, and the substrate is etched; wherein etching gas adopted in the etching process comprises SF6, Ar and CF4, the flow ratio of the SF6 to the Ar to the CF4 is (1-4): (1.5-4): 1, the radio frequency power of the etching process is 150-400 W, and the cavity pressure is 5-20 mTorr; and S3, the patterned photoresist layer is removed, and the patterned substrate is obtained. According to the method, the fluorocarbon polymer is generated in the etching process to protect the side wall, the vertical etching effect is completed while the morphology of the side wall is protected, the steepness of the side wall can reach 85-90 degrees, the etching steepness is greatly improved, the etching quality of a high-resolution pattern is improved, and a high-precision pattern structure is obtained.

The invention discloses multifunctional composite cloth and a production process, and relates to the related field of composite cloth production, and the multifunctional composite cloth comprises a waterproof outer layer, a supporting layer, an antibacterial inner layer and a side stabilizing layer. The composite cloth is prepared from the fluorocarbon polymer outer layer, the waterproof microporous process, the polylactic acid fiber middle supporting layer, the nano titanium dioxide inner layer antibacterial material and the polyurethane coating edge reinforcement, the advantages of various high-performance materials are combined, the fluorocarbon polymer provides excellent waterproofness and chemical resistance, and the microporous process ensures the air permeability of the cloth; the polylactic acid fiber is environment-friendly and has good mechanical strength; the cloth is endowed with lasting antibacterial and self-cleaning functions by the nano TiO2; the polyurethane coating reinforces the edge, the stability and durability of the whole structure are improved, and on the whole, the composite cloth has excellent waterproof, breathable, antibacterial and environment-friendly performance and is stable in structure.

The invention discloses a Pickering IL emulsion microreactor constructed on the basis of temperature-sensitive double-enzyme Janus spheres and application of the Pickering IL emulsion microreactor to enhanced catalysis of conversion of CO2 into formic acid. A Janus emulsion template method is combined with a photocuring technology to synthesize a nano-scale dual-functional temperature-sensitive Janus sphere, one half of the nano-scale dual-functional temperature-sensitive Janus sphere is a hydrophilic hydrocarbon polymer, the other half of the nano-scale dual-functional temperature-sensitive Janus sphere is a hydrophobic fluorocarbon polymer, and rapid inversion of a Pickering emulsion can be realized by utilizing temperature sensitivity. The method comprises the following steps: preparing a Janus particle hydrophilic / hydrophobic hemisphere, selectively immobilizing formate dehydrogenase FDH and carbonic anhydrase CA on the Janus particle hydrophilic / hydrophobic hemisphere to obtain a temperature-sensitive FDH-Janus-CA composite sphere, introducing a fluorine-functionalized ionic liquid to regulate and control the internal microenvironment of a microreactor, and constructing a Pickering IL emulsion microreactor. The CO2 absorption capacity is increased by 47 times compared with that of a pure water system, the formic acid yield reaches 27.5 mM and is higher than the maximum value 22.8 mM of current enzyme electrocatalysis, the storage and catalysis stability is good, and an efficient and sustainable scheme is provided for CO2 recycling.

The invention belongs to the technical field of energy materials, and discloses a coating material as well as a preparation method and application thereof. The coating material comprises the following components in parts by weight: 50-55 parts of zirconium oxide, 15-18 parts of aluminum oxide, 5.5-9 parts of rare earth oxide, 10-12 parts of a fluorocarbon polymer and 3-4 parts of a silane coupling agent, the rare earth oxide comprises yttrium oxide and cerium oxide. A natural gas hydrogen-doped pipeline coating prepared from the coating material has low permeability, high adhesive force, high hardness and excellent stability, can effectively inhibit hydrogen atoms from gathering and diffusing in the material in high-temperature, high-pressure, hydrogen-doped and other complex environments, has excellent hydrogen embrittlement resistance and good chemical stability and mechanical property, and can be used for preparing the natural gas hydrogen-doped pipeline coating. The pipeline failure risk caused by hydrogen embrittlement can be remarkably reduced, the performance degradation phenomena such as aging and decomposition are not prone to occurring, and long-term stable operation of the pipeline can be guaranteed.

The invention discloses an anti-fouling easy-to-clean coating and a preparation method thereof, and relates to the technical field of coatings. The invention discloses an anti-fouling easy-to-clean coating. The coating comprises the following raw materials in parts by weight: 30-50 parts of polymethyl methacrylate, 10-15 parts of modified nano titanium dioxide, 20-30 parts of a fluorocarbon polymer, 3-8 parts of a silane coupling agent, 8-12 parts of nano zinc oxide, 5-10 parts of a plasticizer, 2-6 parts of a dispersant, 1-3 parts of a leveling agent, 4-8 parts of a cross-linking agent, 1-3 parts of an antioxidant, 3-7 parts of a modified cellulose derivative and 2-5 parts of an antibacterial agent. And 5-10 parts of a modified shape memory polymer microcapsule. The anti-fouling and easy-to-clean coating disclosed by the invention is high in anti-fouling property, and the fluorocarbon polymer and the modified nano titanium dioxide are cooperated, so that stains are difficult to attach and can be decomposed by photocatalysis; cleaning is easy, and stains can be easily removed due to the low surface; the water seepage resistance is good, and the special modified cellulose derivative effectively blocks moisture; the antibacterial effect is good, and various microorganisms can be inhibited; and the self-repairing capability is also achieved, recovery can be achieved after damage, the service life is greatly prolonged, and the material protection requirement is comprehensively met.

An electrode is inserted into the interior of an aluminium canister 16 placed withing a chamber. Oxygen plasma is used clean the inside of the Al can 16. A fluorocarbon polymer layer is then deposited

According to the invention there is provided a method of treating a component of a medicament dispenser device, in which the component is an aluminium can having an interior comprising an interior surface that comes into contact with a medicament during storage or use of the device, the method comprising the steps of: positioning the aluminium can in a chamber; inserting an electrode into the interior of the aluminium can; performing a plasma cleaning step in which a gaseous atmosphere consisting essentially of oxygen and, optionally, at least one fluorocarbon is introduced into the chamber and a cleaning plasma is generated in the gaseous atmosphere using the electrode so as to clean the aluminium can, the interior surface of the chamber and the electrode; optionally coating the interior surface of the aluminium can with a coating; and depositing a fluorocarbon polymer layer onto the interior surface of the aluminium can or, if present, the coating by plasma polymerisation.

The present disclosure provides a composite current collector, a preparation method thereof, and a lithium-ion battery. The composite current collector includes a polymer-based film and a composite conductive layer disposed on at least one surface of the polymer-based film; the composite conductive layer includes a transition layer and a metal layer that are alternately stacked, the transition layer includes a fluorocarbon material, and the fluorocarbon material is a fluorocarbon polymer. The present disclosure proposes a new composite current collector. By constructing a unique conductive layer structure with an alternately stacked transition layer and metal layer, the cycle charge and discharge performance and safety performance of a lithium-ion battery based on the composite current collector can be improved.

The present invention discloses a multifunctional composite cloth and production process, which relates to the field related to composite cloth production, including a waterproof outer layer, a support layer, an antibacterial inner layer and a side stabilizing layer. The composite cloth made of a fluorocarbon polymer outer layer, a waterproof microporous process, a polylactic acid fiber intermediate support layer, a nano titanium dioxide inner layer antibacterial material and a polyurethane coating edge reinforcement combines the advantages of multiple high-performance materials. The fluorocarbon polymer provides excellent waterproofness and chemical resistance, and the microporous process ensures the air permeability of the cloth; the polylactic acid fiber is not only environmentally friendly but also has good mechanical strength; the nano TiO2 gives the cloth a lasting antibacterial and self-cleaning function; the polyurethane coating reinforces the edge to improve the stability and durability of the overall structure. Overall, this composite cloth has excellent waterproof, breathable, antibacterial and environmental protection properties, and a stable structure.

The invention relates to a multifunctional noctilucent film which comprises a reflective layer and a base layer, the surface of the reflective layer is coated with a waterproof layer, the waterproof layer is a functional fluorocarbon polymer coating, the surface of the waterproof layer is compounded with an insect repelling layer, the surface of the insect repelling layer is etched with a hydrophobic layer, and the hydrophobic layer is of a micro-nano structure. The noctilucent film is made of novel materials or a unique process, environmental moisture erosion is effectively blocked, the structure of a luminous group is stable, and the noctilucent brightness attenuation rate is far lower than that of the prior art; and the phenomenon that mosquito secretions and corpses are attached to form a shielding layer is avoided, and the light transmittance is not affected and is always kept at a high level.

The invention discloses low-VOC (volatile organic compound) high-adhesion epoxy finish paint and a preparation method thereof, and relates to the technical field of epoxy paint. The low-VOC high-adhesion epoxy finish paint comprises the following raw materials in parts by weight: 50-70 parts of cationic epoxy resin, 3-8 parts of an adhesion promoter, 0-15 parts of a function enhancing component, 2-5 parts of a photoinitiator, 15-25 parts of a pigment filler and 3-8 parts of a solvent, and the function enhancing component is at least one of polysiloxane micropowder and a reactive fluorocarbon polymer. According to the low-VOC high-adhesion epoxy finish paint and the preparation method thereof, the alicyclic epoxy resin suitable for cation UV curing is selected as a basis, and the adhesion promoter is combined, so that the adhesion of a coating to a base material is remarkably improved on the premise of ensuring the low VOC content; by introducing the polysiloxane micropowder with rich active groups on the surface and the reactive fluorocarbon polymer, the weather resistance, hardness, hydrophobicity and stain resistance of the coating are respectively improved.

The invention belongs to the technical field of proton exchange membranes, and particularly relates to a proton exchange membrane, a proton exchange membrane fuel cell, a method and application. The preparation method of the proton exchange membrane comprises the following steps: dissolving sulfonated polyetheretherketone in dimethyl sulfoxide to prepare a sulfonated polyetheretherketone solution, adding amino acid modified cellulose nanocrystalline powder to obtain a uniform and stable solution, and filtering to obtain a membrane casting solution; and fully mixing the modified cellulose nanocrystal powder with sulfonated polyether ether ketone according to a mass ratio of (0.03-0.12): 1, and obtaining the sulfonated polyether ether ketone / modified cellulose composite proton exchange membrane through a tape casting method. The proton exchange membrane provided by the invention is efficient in proton transfer, and overcomes the defects of high swelling ratio and poorer stability caused by over-high sulfonation degree of sulfonated non-fluorocarbon polymers at the same time.

This application discloses a ZIF-FCP catalyst for contact electrocatalytic removal of water pollutants, its preparation method, and its application. This ZIF-FCP catalyst, when applied to contact electrocatalytic removal of water pollutants, possesses characteristics of interfacial stability, charge separation capability, and high catalytic activity, enabling efficient degradation of organic pollutants in water. Furthermore, the ZIF-FCP catalyst exhibits good structural stability and can be reused multiple times. The preparation method of the ZIF-FCP catalyst includes the following steps: S1, adding a zeolite imidazole ester framework and a fluorocarbon polymer solution to a container; S2, evacuating the container and then returning it to atmospheric pressure, using a vacuum-assisted loading method to load the fluorocarbon polymer onto the surface of the zeolite imidazole ester framework, thereby obtaining the ZIF-FCP catalyst. The ZIF-FCP catalyst has a three-layer composite structure from the inside out: a zeolite imidazole ester framework, an interfacial anchoring layer, and a fluorocarbon polymer electron-withdrawing layer.

The application relates to a MOFs-mediated normal-temperature and normal-pressure dyeing and synergic construction of anti-ultraviolet and self-cleaning polyester / cotton fabric and a preparation method thereof, and belongs to the technical field of fabric materials. The method for the MOFs-mediated normal-temperature and normal-pressure dyeing and synergic construction of anti-ultraviolet and self-cleaning polyester / cotton fabric comprises the following steps: S1, porous MOFs are in-situ grown on an oxidized polyester / cotton fabric to obtain a modified fabric; S2, normal-temperature and normal-pressure dyeing treatment is conducted on the modified fabric to obtain a dyed MOFs modified polyester / cotton fabric; and S3, PVDF is used to conduct coating treatment on the dyed MOFs modified polyester / cotton fabric to obtain an anti-ultraviolet and self-cleaning polyester / cotton fabric. Through the synchronous construction of controllable coordination of metal organic frameworks and micro-nano rough structures of fluorocarbon polymers, efficient and uniform dyeing of acid dyes on polyester / cotton two phases is realized without damaging the fiber strength, and the fabric is endowed with persistent anti-ultraviolet, high hydrophobicity and excellent self-cleaning performance.

The invention relates to the technical field of cables, and provides a photovoltaic cable and a preparation method thereof. The photovoltaic cable includes: a center conductor; the insulating layer is positioned on the periphery of the central conductor; the sheath layer is positioned on the periphery of the insulating layer; wherein the material of the insulating layer comprises cross-linked polyolefin and a first fluorocarbon polymer; the sheath layer is made of polyethylene, a second fluorocarbon polymer, ethylene propylene diene monomer, methyl vinyl silicone rubber, fluorinated silicone rubber, a modifier, a compatilizer and an accelerant. Therefore, the photovoltaic cable has excellent low-temperature performance and can bear tests such as impact and winding at low temperature.

The invention discloses a selective permeation protective clothing material and a preparation method and application thereof, and relates to the technical field of protective materials.The preparation method comprises the following steps that a fluorocarbon high polymer material is dissolved in a polar organic solvent, the weight-average molecular weight of the fluorocarbon high polymer material is 15 * 10 < 4 >, polyethylene glycol and a chain extender are added, and a spinning solution precursor is prepared; regulating the temperature of the prepared spinning solution precursor to 160-230 DEG C, and carrying out melt electrostatic spinning to prepare a fluorine-containing fiber membrane; soaking the fluorine-containing fiber membrane into an alcohol solution containing kaolin, adding 10wt% of perfluorovinyl ether and 0.5 wt% of an initiator, and reacting at 80 DEG C for 8 hours; and taking out the soaked membrane material at a low temperature, and soaking the membrane material in 5wt% of N, N-dimethylacrylamide monomer, an initiator and an accelerator to complete solution replacement so as to prepare the selectively permeable membrane material.

According to the invention, there is provided a method of treating a component of a medicament dispensing device wherein the component is an aluminum can having an interior comprising an inner surface that is in contact with a medicament during storage or use of the device, the method comprising the steps of: placing the aluminum can in a chamber; inserting an electrode into the aluminum pot; performing a plasma cleaning step in which a gaseous atmosphere consisting essentially of oxygen and optionally at least one fluorocarbon is introduced into the chamber and a cleaning plasma is generated in the gaseous atmosphere using the electrode in order to clean the aluminum can, the inner surface of the chamber and the electrode; optionally coating the inner surface of the aluminum can with a coating; and depositing a fluorocarbon polymer layer onto the inner surface of the aluminum can by plasma polymerization, or, if present, onto a coating.

The invention discloses a composite function interface layer on the surface of a metal base material and a preparation method and application thereof, the composite function interface layer is of a porous structure and comprises C, F and O elements, and the thickness of the composite function interface layer is 3-100 nm. The preparation method comprises the following steps: coating a liquid fluorocarbon polymer on the surface of a metal substrate, and drying to form a precursor film; and placing the obtained product in a protective atmosphere, heating and preserving heat, and then cooling to room temperature to form an ultrathin porous composite functional interface layer on the surface of the metal substrate in situ. The liquid fluorocarbon polymer is pyrolyzed on the metal substrate, the carbon-based interface layer with the thickness of only nanoscale can be constructed on the surface of the substrate in situ, the interface layer has the porous characteristic, abundant channels are provided for ion transmission, the ion diffusion path is greatly shortened, the ion migration energy barrier is effectively reduced, and the performance of the device is improved. The ion transmission rate and the deposition / stripping dynamic performance of the electrode are remarkably improved, and the utilization rate and the cycle life of the metal electrode are improved.

The present invention relates to a process for forming a thin film of polytetrafluoroethylene on a substrate having multiple facets. The method comprises the following steps: providing a polytetrafluoroethylene target, wherein said target is doped with graphite; positioning the substrate proximate to the polytetrafluoroethylene target in a vacuum chamber at a pressure of 1.333×10-2 Pascal to 1.333×10-4 Pascal; irradiating the polytetrafluoroethylene target at a wavelength of 240 nm to 360 nm for a pulse length of 100 femtosecond to 500 picoseconds, at an intensity of 1 microjoule to 100 microjoules per pulse length, at a repetition rate of from 1 kHz to 10 Hz, for a time sufficient to deposit a polytetrafluoroethylene film on the substrate; and forming a substantially uniform polytetrafluoroethylene thin film on one more facets of the substrate, wherein the film has a thickness of less than 100 nm.

This application discloses an integrated etching method, comprising: performing integrated etching to form a groove in a metal layer and a first dielectric layer, the first dielectric layer being formed on a second dielectric layer, and a metal line being formed in the second dielectric layer, with the metal line exposed at the bottom of the groove, the metal line and the metal layer containing different materials; performing post-etching to remove the fluorocarbon polymers generated during the integrated etching, the post-etching comprising three etching stages: in the first etching stage, a reactive gas including carbon monoxide and / or carbon dioxide is introduced; in the second etching stage, a reactive gas including hydrogen and an inert gas is introduced; and in the third etching stage, a reactive gas including carbon monoxide and / or carbon dioxide is introduced. By adding an etching stage containing a reactive gas including hydrogen and an inert gas during the post-etching process of integrated etching, this application can reduce the formation of residual metal fluoride compounds, thereby improving the reliability and yield of the device product.

The invention discloses a long-acting protective water-based fluorocarbon paint and a preparation method thereof. The water-based fluorocarbon paint mainly comprises a component A and a component B, the component A mainly comprises the following raw materials in parts by weight: 50-70 parts of a self-emulsifying fluorocarbon emulsion, 3-8 parts of polycarbonate diol, 3-7 parts of a cosolvent, 15-23 parts of a filler, 5-7 parts of functional fluorocarbon resin, 5-15 parts of deionized water, 0.5-4 parts of an auxiliary agent and 0.5-4 parts of a modified fluorocarbon polymer; and the component B comprises the following components in parts by weight: 40-60 parts of an HDI curing agent and 40-60 parts of a solvent. According to the fluorocarbon paint disclosed by the invention, the water-based property, efficient film forming, long-term weather resistance and strong adhesive force of the fluorocarbon paint are realized through the cooperation of the self-emulsifying fluorocarbon dispersoid, the functional fluorocarbon resin and the modified fluorocarbon polymer; a hydrophilic modified HDI tripolymer is used as a curing agent and is combined with a self-emulsifying technology, so that the compatibility of high-fluorine-content resin and a water-based system is realized. Compared with general water-based fluorocarbon paint, the fluorocarbon paint disclosed by the invention realizes stronger ultraviolet resistance, salt mist resistance, acid and alkali resistance and hydrophobicity, and the adhesive force of a paint film is also remarkably improved; the fluorocarbon paint is long in activation period and suitable for batch use.

The invention relates to a reaction plate for high-throughput screening of low-adsorption nuclear drugs as well as a preparation method and application of the reaction plate, and belongs to the technical field of biological medicines. The reaction plate comprises a substrate with a plurality of micropores in the surface and a coating formed on the inner surfaces of the micropores, the inner surfaces of the micropores are connected with the coating through covalent bonds; the coating is a hydrophilic-hydrophobic binary synergistic patterned coating; a hydrophilic area of the coating is a polyethylene glycol silane layer, and a hydrophobic area of the coating is a fluorocarbon polymer layer. According to the reaction plate disclosed by the invention, through special surface chemical treatment, the non-specific adsorption of ultralow-concentration (picomole to nanomole level) nuclear drug molecules (especially peptides, oligonucleotides and small molecule ligands) on the surface of a container can be remarkably reduced; the key technical problems of signal loss, inaccurate detection, non-repetitive results and the like caused by adsorption in the high-throughput screening process are effectively solved. The invention further provides a preparation method of the reaction plate, and the preparation method is stable in process and suitable for large-scale production.

The present invention discloses a waterproof and moisture-proof laser film and a processing method thereof, and relates to the field related to laser films, including a substrate, a waterproof layer, and a hydrophobic layer. The present invention provides excellent wear resistance and anti-fouling ability by coating a waterproof layer on the substrate, which is a functional fluorocarbon polymer coating, ensuring that the film maintains stable performance and appearance in various environments; and a hydrophobic layer is etched on the waterproof layer, which is a micro-nano structure, and can effectively reduce the contact area between water droplets and the film, achieve a super-hydrophobic effect, and prevent water penetration and pollutant adhesion.

The invention relates to the technical field of textile auxiliary agents, in particular to an efficient waterproof and oilproof auxiliary agent and a preparation method thereof. The additive comprises the following raw materials in parts by mass: 10-20 parts of modified nano silicon dioxide, 30-50 parts of a fluorocarbon polymer, 3-8 parts of a cross-linking agent, 5-15 parts of an emulsifier and 40-60 parts of deionized water. The auxiliary agent prepared by the invention has excellent waterproof and oil-proof performance, good washability, environmental protection and no toxicity, and is suitable for after-finishing treatment of various textiles.

The utility model discloses a fluorocarbon polymer powder decompression drying device, and relates to the technical field of decompression drying. The fluorocarbon polymer powder decompression drying device comprises a drying barrel and a drainage pipe fixedly arranged on the bottom face of the drying barrel in a penetrating mode, a valve is fixedly arranged at the bottom of the drainage pipe in a penetrating mode, and an air supply adjusting valve is fixedly arranged on the top face of the drying barrel in a penetrating mode and extends into the drying barrel. The drying device has the technical effects that a sealing cover, a sealing ring, an extrusion ring, a mounting frame and bolts are arranged in the placing mechanism, so that external humid air is effectively prevented from entering the drying barrel, and a stable environment is provided for drying; and a pressing plate, an extruding plate, a motor, a threaded rod, a threaded sleeve, a limiting rod and other parts of the extruding part can extrude the fluorocarbon polymer powder in the drying process, internal water is extruded out and discharged through a water discharging pipe, and the drying effect and the product quality are improved.

The invention provides a diaphragm roll and a battery, and particularly relates to the technical field of batteries. The diaphragm roll comprises a diaphragm body and an early warning adhesive layer, the diaphragm body is provided with a head end and a tail end which are oppositely arranged in the length direction of the diaphragm body, and the diaphragm roll with the tail end as a roll core is formed by winding the diaphragm body in the length direction; the early warning adhesive layer is arranged on at least one side of the diaphragm body, and a preset length is formed between the early warning adhesive layer and the tail end; wherein the pre-warning adhesive layer comprises a fluorocarbon polymer and a coloring agent, the RGB of the pre-warning adhesive layer is different from the RGB of the diaphragm body, the pre-warning adhesive layer is analyzed through Fourier transform infrared spectroscopy, the infrared spectrum of the pre-warning adhesive layer has a first absorption peak within the wave number range of 1700-1750 cm <-1 >, and the absorbance of the first absorption peak is 0.01-0.04. The diaphragm roll provided by the invention can effectively avoid the problem of battery performance deterioration caused by tape flying and early warning adhesive layer falling due to untimely roll replacement or continuous roll replacement.

The invention provides a polaroid protective film and a preparation method thereof, the polaroid protective film comprises a PET base material, an antifouling layer and an adhesive layer are respectively arranged on two sides of the PET base material, the antifouling layer is prepared from an organosilicon-acrylate copolymer, a fluorocarbon polymer, a nanometer titanium dioxide dispersion liquid and the like, does not contain PFAS, and has excellent antifouling performance; the adhesive layer is prepared from an acrylate copolymer, modified starch, a tackifier, a cross-linking agent, a dispersing agent, a plasticizer and the like, does not contain PFAS, has excellent adhesiveness with a PET base material, and also enables the polaroid protective film to have excellent water resistance and flexibility.

The utility model discloses an anti-stain toughened film which comprises a toughened film body, an anti-fouling coating is arranged on the upper surface of the toughened film body, the anti-fouling coating is a fluorocarbon polymer coating, and nano titanium dioxide particles are uniformly dispersed in the anti-fouling coating. The antifouling coating is a fluorocarbon polymer coating and contains nano titanium dioxide particles with specific particle sizes and proportions, stains are difficult to adhere due to the low surface energy characteristic of fluorocarbon polymers, the antifouling capacity is further enhanced due to the existence of the nano titanium dioxide particles, retention of the stains such as fingerprints and oil stains on the surface of the tempered film is effectively reduced, and the service life of the tempered film is prolonged. And meanwhile, the silicon carbide wear-resistant coating is also arranged on the surface of the antifouling coating, and the thickness of the silicon carbide wear-resistant coating is set to be proper, so that the scratch resistance of the tempered glass film can be remarkably improved, the tempered glass film is protected from being scratched by sharp objects in daily use, and the service life of the tempered glass film is prolonged.

To provide a liquid composition capable of forming a polymer electrolyte membrane which is excellent in the initial power generation characteristics when made into a membrane electrode assembly, and which is excellent in durability and has few defects. This liquid composition comprises a liquid medium, a sulfonic acid group-containing fluorocarbon polymer and a hardly soluble cerium compound, wherein the ion exchange capacity of the sulfonic acid group-containing fluorocarbon polymer is from 1.36 to 2.50 meq / g dry resin, the average particle size of the hardly soluble cerium compound is from 1 nm to 3,000 nm, and the ratio of the total number of moles of cerium atoms in the hardly soluble cerium compound to the total number of moles of sulfonic acid groups in the sulfonic acid group-containing fluorocarbon polymer is from 0.001 to 0.3.