623 results about "Poly ether ether ketone" patented technology

The invention relates to the technical field of heavy anti-corrosion coatings, in particular to a graphene enhanced epoxy modified organic silicon resin heavy anti-corrosion powder coating. The coating is prepared from the following components in parts by weight: 42 to 58 parts of epoxidized epoxy modified organic silicon resin, 0.8 to 2.5 parts of hydroxylated graphene, 6 to 11 parts of nano zirconium dioxide coated boron nitride, 2.5 to 5.5 parts of lanthanum iso-octoate-titanate composite coupling agent, 1.5 to 3.5 parts of bis (3-triethoxysilylpropyl) disulfide, 4 to 7 parts of polyhedral oligomeric silsesquioxane, 5 to 8 parts of curing agent, 0.8 to 1.8 parts of flatting agent and 0.4 to 0.9 part of defoaming agent. 2.5 to 4.5 parts of polyether-ether-ketone micro powder and 1.2 to 2.8 parts of fluorine-containing phosphate ester. According to the invention, the resin is modified through chemical bridging, the modified graphene and the nano-coated powder are matched to construct a synergistic enhancement system, and the interface bonding is optimized by the composite coupling agent. The coating is excellent in adhesive force, corrosion resistance and mechanical property, good in processing fluidity and high in aging resistance and thermal stability, solves the problem that a traditional product is short in performance, and meets the industrial requirement.

The invention relates to an electromagnetic shielding resistant PPS alloy material containing modified carbon nanotubes, and belongs to the technical field of polymer composite materials. The PPS alloy material comprises 70-85 parts of polyphenylene sulfide, 5-15 parts of polyether-ether-ketone or a liquid crystal polymer, 3-8 parts of carbon nanotubes subjected to acyl chloride-amido double-step modification and 5-12 parts of carbon fibers subjected to oxidation treatment, and the carbon fibers subjected to oxidation treatment are covalently connected with the carbon nanotubes subjected to double-step modification. 0.5 to 1.5 parts of a coupling agent, 0.3 to 0.8 part of an antioxidant and 0.2 to 0.6 part of a lubricant. According to the invention, the carbon nanotubes are subjected to surface grafting group modification, and the carbon fibers are subjected to surface oxidation treatment, so that the technical problems that the carbon nanotubes are easy to agglomerate, the interface between the carbon fibers and the matrix is weak, and the shielding efficiency and the mechanical property are difficult to consider are solved, and the carbon nanotubes and the PPS matrix form a composite reinforced structure; the comprehensive improvement of the material in the aspects of electromagnetic shielding, mechanical property, thermal stability and the like is realized.

The invention relates to a filter screen and a preparation method and application thereof, and belongs to the technical field of filtering equipment, the filter screen comprises a hydrophobic enhancement layer, a pre-filtering layer and a core filtering layer which are stacked in sequence; the hydrophobic reinforcing layer comprises the following components: metal fibers; the pre-filtering layer is prepared from the following components: basalt fibers; and the core filter layer comprises the following components: polytetrafluoroethylene fibers and polyether-ether-ketone fibers. By designing the structure of the filter screen, the filter screen which can stably work in a high-temperature environment, has excellent hydrophobic performance and filtering efficiency and is controllable in manufacturing cost is obtained.

The invention discloses a preparation method of a tinned copper core fluorinated ethylene propylene insulated cable for aerospace, and relates to the technical field of aerospace cable preparation methods. The preparation method comprises the following steps: S1, preparing a nickel-plated copper core; s2, preparing a heat insulation layer; s3, a composite insulating layer is prepared, the composite insulating layer is composed of a first insulating layer, a second insulating layer and a third insulating layer from inside to outside, the first insulating layer is a fluorinated ethylene propylene layer, the second insulating layer is a polyimide / fluorinated ethylene propylene composite layer, and the third insulating layer is a polyether-ether-ketone layer; s4, preparing a shielding layer; and S5, preparing a protective layer. The invention provides the preparation method of the tinned copper core fluorinated ethylene propylene insulated cable for aerospace, the insulated cable prepared by the preparation method has high performance and high reliability in an extreme aerospace environment, and all key requirements of electrical performance, radiation resistance, mechanical strength and wear resistance are comprehensively met.

The invention discloses a digital stable jaw pad designing and manufacturing method, and relates to the technical field of oral rehabilitation and digital medical technology.The digital stable jaw pad manufacturing method comprises the following steps that a, three-dimensional point cloud data of oral dentition and mucosa of a patient is obtained through a three-dimensional scanner; b) determining a stable jaw position coordinate model by using an optical motion capture system; c) designing a jaw pad three-dimensional entity model with an anterior tooth area, a posterior tooth area and an edge structure based on the three-dimensional point cloud data and the stable jaw coordinate model; and d) manufacturing the jaw pad through 3D printing equipment, wherein the 3D printing equipment is formed by adopting a polyether-ether-ketone material. By integrating digital acquisition, design and manufacturing technologies, the pain point of a traditional method is solved, and personalized, high-precision and rapid manufacturing of the stable jaw pad is realized.

The invention relates to the technical field of anion exchange membranes, in particular to a dual-ion-channel synergistic enhanced conduction anion exchange membrane for alkaline water electrolysis hydrogen production and a preparation method of the dual-ion-channel synergistic enhanced conduction anion exchange membrane for alkaline water electrolysis hydrogen production, and the dual-ion-channel synergistic enhanced conduction anion exchange membrane for alkaline water electrolysis hydrogen production is prepared by blending and crosslinking quaternized polyether-ether-ketone and carboxylated polyether sulfone, the carboxylated polyethersulfone provides a cation channel to form a double-ion synergistic conduction structure; the preparation process of the anion exchange membrane comprises the steps of quaternized polyether-ether-ketone synthesis, carboxylated polyether sulfone synthesis, membrane casting solution preparation, tape casting drying, crosslinking treatment and alkali liquor ion exchange. By constructing a double-ion channel structure, the synergistic conduction of anions and cations is realized, and the total ion conduction efficiency of the membrane is remarkably improved. The two polymer components form a continuously interlaced channel network, so that the defect that the conduction path of the traditional single ion channel membrane is isolated is avoided.

The invention belongs to the technical field of polymer chemical production, and discloses a method for continuously and efficiently preparing polyether-ether-ketone. The method comprises the following steps: dissolving 4, 4 '-difluorobenzophenone and diphenyl sulfone in a first dissolving tank to obtain a 4, 4'-difluorobenzophenone solution; hydroquinone, a catalyst and diphenyl sulfone are placed in a second dissolving tank to be dissolved, and a hydroquinone solution is obtained; the preparation method comprises the following steps: injecting a 4, 4 '-difluorobenzophenone solution and a hydroquinone solution into a reactor for polymerization reaction to obtain a mixed solution; injecting the mixed solution into a separator through a heat exchanger for separation to obtain polyether-ether-ketone and liquid; distilling the liquid to obtain diphenyl sulfone and sodium fluoride, and returning the obtained diphenyl sulfone to participate in dissolution; all the steps are carried out in a protective atmosphere. The preparation process provided by the invention is a brand new PEEK production process flow, and realizes continuous PEEK production and efficient energy recycling.

The invention relates to polyether-ether-ketone resin with extremely narrow molecular weight distribution as well as a preparation method and application of the polyether-ether-ketone resin. The preparation method of the polyether-ether-ketone resin comprises the following steps: uniformly mixing 4, 4 '-difluorobenzophenone, a phenolic monomer, a salt-forming agent and a solvent in an inert atmosphere, carrying out gradient heating, and then carrying out end capping; the gradient heating comprises the following steps: in the initial stage, the heat preservation temperature is 140-210 DEG C, in the transition stage, the heat preservation temperature is 250-280 DEG C, and in the final stage, the heat preservation temperature is 300-320 DEG C. The prepared PEEK resin has very narrow molecular weight distribution, the chemical, heat-resistant stability, anti-fatigue performance and mechanical performance of the PEEK resin can be remarkably improved, and the high-performance and high-quality requirements of PEEK in the high-end manufacturing field such as aerospace, medical treatment, electronics and semiconductors are met.

The invention discloses a low-dielectric-constant polyamide material, and relates to the technical field of high polymer materials. The invention discloses a low-dielectric-constant polyamide material. The composite material is prepared from the following raw materials in parts by weight: 35 to 45 parts of polyamide 66, 5 to 10 parts of polytetrafluoroethylene micro powder, 8 to 12 parts of modified porous siloxane microspheres, 3 to 7 parts of modified nano zinc oxide, 10 to 15 parts of glass fibers, 4 to 8 parts of polyether-ether-ketone, 1 to 3 parts of graphene nanosheets, 3 to 5 parts of fluororubber, 1 to 2 parts of a titanate coupling agent, 0.3 to 0.7 part of an antioxidant 1010, 0.5 to 1.0 part of ethylene bis stearamide and 0.1 to 0.3 part of an ultraviolet absorbent UV-531. The low-dielectric-constant polyamide material has the remarkable advantages that the raw materials are scientifically proportioned, and various modified components are contained to enhance the performance; all the components are subjected to special treatment, so that the compatibility is good; the preparation process is rigorous, and the material has excellent dielectric properties; and the material also has good heat resistance and weather resistance and strong mechanical properties, and is suitable for various scenes with high dielectric constant requirements.

The invention discloses a polyphenol modified carbon fiber reinforced sulfonated polyetheretherketone composite material and a preparation method thereof, and belongs to the field of polymer composites.The preparation method comprises the steps that a resin matrix and filler are filled into a mold to be sintered, the resin matrix is sulfonated polyetheretherketone, the filler comprises modified carbon fibers and nano-silicon dioxide, and the modified carbon fibers and the nano-silicon dioxide are sintered to obtain the polyphenol modified carbon fiber reinforced sulfonated polyetheretherketone composite material; the modified carbon fiber is prepared by taking carbon fiber, catechol and polyethyleneimine as raw materials in a Tris buffer solution. The hydration lubrication performance of a resin matrix is improved through sulfonated polyetheretherketone, the hydrophilic property is enhanced, a polyphenol coating is formed through self-polymerization reaction on the surfaces of the carbon fibers, the adhesion performance of the surfaces of the fibers is improved through the pi-pi stacking effect, and the interface bonding force between the carbon fibers and the modified resin matrix is enhanced; the nano silicon dioxide is introduced to modify the matrix of the composite material, so that not only is the overall wettability of the material optimized, but also the mechanical property and the wear resistance are effectively improved, and the final composite material has the characteristics of high strength and low friction.

The invention discloses a high-temperature-resistant composite material for manufacturing a wafer chuck and a preparation method of the high-temperature-resistant composite material, and belongs to the technical field of composite materials. The high-temperature-resistant composite material for manufacturing the wafer chuck is characterized by comprising the following components in parts by weight: 40-60 parts of maleic anhydride grafted polyvinylidene fluoride, 10-20 parts of modified glass fibers, 20-40 parts of polyether-ether-ketone, 1-5 parts of a compatibilizer, 0.5-2 parts of a lubricant and 1-3 parts of an antistatic agent, wherein the modified glass fiber is polyimide coated modified glass fiber. By reasonably selecting and proportioning the maleic anhydride grafted polyvinylidene fluoride, the modified glass fiber, the polyether-ether-ketone and other components and adding the compatibilizer, the lubricant and the antistatic agent, the high temperature resistance of the material and the compatibility among the components are effectively improved, so that the service life of the composite material is remarkably prolonged.

The invention discloses a carbon fiber reinforced wear-resistant polyether-ether-ketone composite material and a preparation method thereof, and belongs to the technical field of polymer composite materials. According to the invention, the modified carbon fiber is obtained by one-step synergistic treatment of carbon fiber through oxidizing agent oxidation-silane grafting-nano oxide loading. In the carbon fiber reinforced wear-resistant PEEK composite material, specific modified carbon fibers are used as reinforcing fibers, so that the high-temperature performance of a PEEK matrix can be enhanced, the high-temperature wear resistance can be improved, and meanwhile, high mechanical properties are kept. The material performance synergism is excellent, and through the synergistic effect of the modified carbon fiber (enhanced interface), the nano oxide (enhanced matrix) and the inorganic lubricating material (lubrication barrier), the problem that high-temperature wear resistance and mechanical performance are difficult to consider at the same time in the prior art can be solved. In addition, the invention also has obvious cost and environmental protection advantages.

The invention discloses a modified aramid fiber reinforced polyether-ether-ketone composite material as well as a preparation method and application thereof, and belongs to the technical field of fiber reinforced resin-based composite materials. The preparation method comprises the following steps: firstly activating the surface of aramid fiber by adopting plasma treatment, then coating polydopamine as a middle adhesion layer, then depositing amino-functionalized metal organic framework MOF-808-NH2 nanoparticles, and finally compounding the interface modified aramid fiber and polyether-ether-ketone to prepare the fiber-reinforced polyether-ether-ketone composite material. The method is different from a common fiber modification means in the prior art, a gradient functional interface is constructed through organic combination and supplement of functions of all the steps, the interface performance is greatly improved, and the overall mechanical property of the composite material is greatly improved based on the excellent interface bonding force between the aramid fiber and the polyether-ether-ketone matrix. Meanwhile, the dielectric strength and the electric insulation reliability of the whole material are also improved, so that the material is more suitable for harsh electric insulation application occasions.

The invention relates to the technical field of equipment lubricating oil monitoring, in particular to a wear debris electrostatic monitoring method and system based on combination of characteristic mode decomposition and time-frequency images, and an electrostatic sensor monitoring system comprises a sensor shell, an annular copper probe, a polyether-ether-ketone pipeline, a shielding cover, a signal processing circuit and other modules. An insulating pipe in the sensor is a polyether-ether-ketone pipeline, lubricating oil passes through the inside of the polyether-ether-ketone pipeline, and a red copper probe of the sensor is attached to the outer surface of the polyether-ether-ketone pipeline. The method comprises the following steps of: firstly, constructing a signal enhancement model based on characteristic modal decomposition and a kurtosis measurement criterion, and screening out a key modal component with high sparsity for reconstruction by calculating a Gini coefficient of each modal component; further enhancing the signal pulse of the wear debris through modal component optimization reconstruction and a sparse representation model; and finally, identifying the wear debris impact signal based on the continuous wavelet transform time-frequency image to realize real-time monitoring of the wear debris.

The invention discloses a dental implant containing a bioactive surface and a preparation method of the dental implant, relates to the technical field of implants, and aims to improve the biological activity of the dental implant, perform multiple treatments on the surface of the dental implant, and form a microcosmic concave structure on the surface of the implant through sand blasting and laser etching to induce bone growth. Acid liquor and alkali liquor are used for treating the surface of the implant, active hydroxyl is introduced to the surface of the implant, the surface hydrophilicity is improved, and the reaction activity of subsequent reaction steps is improved; then, polyether-ether-ketone with antibacterial performance and hydroxyapatite with biological activity are further introduced into the surface of the dental implant, so that the biological activity of the dental implant is effectively improved.

The invention discloses a high-strength, high-temperature-resistant and anti-static polyether-ether-ketone composite material for electronic equipment and a preparation method of the high-strength, high-temperature-resistant and anti-static polyether-ether-ketone composite material. Comprising the following components in percentage by mass: 60%-70% of polyether-ether-ketone, 15%-20% of carbon fibers, 7%-10% of polytetrafluoroethylene, 3%-5% of boron nitride, 1%-3% of carbon nanotubes, 1%-2% of a silane coupling agent and 0.5%-1% of an antioxidant, and the sum of the mass percentages of all the components is 100%. When the prepared polyether-ether-ketone composite material is applied to electronic components, the mechanical strength, the thermal conductivity, the thermal stability, the chemical corrosion resistance and the antistatic property of the polyether-ether-ketone composite material can be further improved while the original excellent temperature resistance of the polyether-ether-ketone can be kept, so that the range of manufacturing and using the material as the electronic components is wider.

The invention discloses an acid-resistant nanofiltration membrane and a preparation method thereof, and belongs to the technical field of membrane separation. The gradient heterojunction active layer is formed on the base film through sequential interfacial polymerization and comprises a polysulfonamide bottom layer adjacent to the base film and a polyamine-metal organic framework composite layer located on the polysulfonamide bottom layer; the gradient heterojunction active layer is coated with the pH response self-repairing layer, and the self-repairing layer comprises pH response type microcapsules dispersed in cross-linked polyvinyl alcohol hydrogel; the membrane has excellent self-repairing capability and maintenance convenience, the repairing efficiency of artificial microcosmic damage in an acid environment within 24 hours can reach 85% or above, tiny scratches and defects generated in the operation or installation process of the membrane can be automatically repaired, the failure of the whole membrane element caused by tiny damage expansion is avoided, and the service life of the membrane element is prolonged. And the unplanned shutdown risk and the special repair and maintenance cost are reduced.

The invention discloses polyether-ether-ketone resin with a microporous structure and a preparation method thereof, and relates to the technical field of high polymer materials. The foaming agent is added in the polymerization reaction process of the polyether-ether-ketone resin, a chemical foaming method and a physical foaming method are combined, and the polyether-ether-ketone resin is foamed through a two-step method, so that the cell density and the foaming ratio of the polyether-ether-ketone resin with a microporous structure are improved; the material density of the polyether-ether-ketone resin with the microporous structure is reduced. According to the invention, a polymerization process and a foaming process of the polyether-ether-ketone resin are combined, and compared with direct foaming of a polyether-ether-ketone material, the prepared polyether-ether-ketone resin with the microporous structure has the advantages of higher cell density, higher foaming ratio and lower material density.

The invention discloses a metamaterial RFID (Radio Frequency Identification) anti-interference antenna structure for a severe environment and a manufacturing method of the metamaterial RFID anti-interference antenna structure. The middle layer of a substrate of the antenna structure is made of corrosion-resistant polyether-ether-ketone resin doped carbon nanotubes; the upper-layer metal patch of the electromagnetic band gap unit array and the lower-layer metal layer of the annular gap are respectively attached to the upper surface and the lower surface of the middle layer of the substrate; and a self-adaptive impedance matching module is arranged at the joint of the equipment antenna and the feeder line. And each unit in the electromagnetic band gap unit array vertically penetrates through the substrate through a metalized via hole and is connected with the upper-layer metal patch and the lower-layer metal grounding layer of the substrate to form an LC resonance unit. The skin effect of eddy current on the metal surface can be counteracted through the reverse induction current, the loss of energy on the metal surface is greatly reduced, and the radiation efficiency of the metal surface is remarkably improved. In a complex electromagnetic environment, signals can be radiated and received more efficiently, the communication stability and reliability of an RFID system are effectively enhanced, and the probability of signal loss and error codes is reduced.

The embodiment of the invention discloses an injection-molded long carbon fiber reinforced polyether-ether-ketone alloy composite material and a preparation method thereof. Nano filler modified polyether-ether-ketone alloy powder is prepared from polyether-ether-ketone, modified resin and a nano modifier; preparing soft and hard sizing agent hybrid modified long carbon fibers from continuous carbon fibers and the prepared sizing solution; nano-filler modified polyether-ether-ketone alloy powder, a deionized water solution containing a surfactant and a thickening agent and soft and hard sizing agent mixed modified long carbon fibers are adopted to prepare long carbon fiber master batches; and carrying out injection molding on the long carbon fiber master batch by adopting an optimized injection molding process to prepare the long carbon fiber reinforced polyether-ether-ketone alloy composite material. The mechanical properties, electric conduction, heat conduction and friction properties of the composite material are greatly improved, and the defects of a polymer material in the aspect of functionality are further made up; moreover, the effective retention length of fibers in the injection molding master batch is greatly increased, the organic solvent is prevented from damaging molecular chain segments of a resin matrix, and the injection molding master batch is more environment-friendly.

The invention discloses a preparation process of polyether-ether-ketone, and relates to the technical field of preparation of inorganic compounds. The preparation process comprises the following steps: reacting 4, 4 '-difluorobenzophenone, sodium carbonate and hydroquinone to generate polyether-ether-ketone, taking a polyaryletherketone block oligomer as an end-capping reagent, reacting 4, 4'-difluorobenzophenone with 4, 4 '-dimercaptodiphenyl sulfone, and then reacting with pentaerythritol phosphate to obtain the polyaryletherketone block oligomer. The thioester bond reversibly breaks at the polymerization temperature, exposed active sulfenyl reacts with hydroxyl at the tail end of the polyether-ether-ketone to form a more stable covalent bond, volatilization of the end-capping reagent is avoided, meanwhile, the initial decomposition temperature of the end-capped polyether-ether-ketone is increased, and the stability of the end-capping reagent is improved. The polyether-ether-ketone generated in the polyether-ether-ketone resin product is subjected to treatment procedures of crushing, organic solvent extraction, water washing, filtering, drying and the like, so that the product polyether-ether-ketone is obtained, less three wastes are generated, the solvent can be recycled, the atom economy is relatively high, and the preparation process of comprehensive utilization of resources is realized.

The invention discloses a high-temperature-resistant and high-voltage-resistant cable for aerospace. The high-temperature-resistant and high-voltage-resistant cable sequentially comprises a conductor core layer, an inner semi-conductive layer, a combined insulating layer, an outer semi-conductive layer and a shielding layer from inside to outside, wherein the combined insulating layer is of a combined structure formed by wrapping a polyimide composite film and extruding polyether-ether-ketone. According to the cable disclosed by the invention, the high temperature resistance, the high pressure resistance and the irradiation resistance are remarkably improved by optimizing the material and the structural design; meanwhile, the device is suitable for a spacecraft high-voltage system, and has the advantages of high reliability, long service life and the like.

The invention relates to the technical field of polymer composite materials, in particular to a cable polymer composite material for a wind turbine blade, which is prepared from the following raw materials in parts by weight: a polymer base material; a reinforcing material; a polymer modified material; a functional additive; a performance modifier; the functional additive is prepared from an anti-ultraviolet agent, an antioxidant, a silane coupling agent and nano titanium dioxide. According to the invention, the epoxy modified polyether-ether-ketone and bisphenol A epoxy resin compounded base material is matched with a continuous glass fiber, carbon fiber chopped strand and nano silicon nitride multi-element reinforcing system, so that the core short board of insufficient mechanical properties of the traditional material is thoroughly solved, and a magnesium hydroxide, aluminum hydroxide, expanded graphite and nano montmorillonite compounded flame-retardant system is also selected, so that the flame-retardant performance of the material is greatly improved. The flame-retardant cable material is high in flame retardance, free of toxic gas release, capable of meeting the environment-friendly requirement, capable of improving the material interface bonding force and long-term service reliability and capable of meeting the requirement for the service life of 20 years or above of wind power blade cables.

The invention relates to the technical field of PEEK composite materials, in particular to a wear-resistant PEEK composite material and a preparation method thereof. The wear-resistant PEEK composite material is prepared from the following raw materials in parts by weight: 60-90 parts of polyether-ether-ketone resin or pretreated polyether-ether-ketone resin, 10-20 parts of polytetrafluoroethylene and 3-8 parts of a wear-resistant composite material, the pretreated polyether-ether-ketone resin is obtained through plasma treatment, and the pretreated polyether-ether-ketone resin is obtained. The wear-resistant PEEK composite material prepared by the invention has good wear resistance and mechanical properties.

The invention provides a block copolymer toughening-based polyether-ether-ketone material and a preparation method thereof, and relates to the technical field of high polymer materials, the method is characterized in that a block copolymer PAEK-B with a specific sequence structure is synthesized by accurately controlling a ternary block copolymerization reaction of hydroquinone, 4, 4 '-difluorobenzophenone and biphenol, and the block copolymer PAEK-B with a specific sequence structure is obtained. And then the mixture is subjected to melt blending with PEEK, so that the toughness of the PEEK is effectively improved, the mechanical property is improved, and meanwhile, the original processing temperature is kept unchanged.

The invention belongs to the technical field of carbon fiber surface treatment, and particularly relates to a cross-linked polymer modified carbon fiber, a preparation method and a composite material. Aiming at the problem of insufficient interface bonding force between the existing polyarylsulfone / ketone thermoplastic sizing agent and the carbon fiber, the core of the invention is to apply a polyarylsulfone / ketone derivative of which a main chain or a side chain is provided with an electrochemically crosslinkable active group to the technical field of carbon fiber surface treatment. And constructing a covalent bond combined three-dimensional network structure coating on the surface of the carbon fiber in situ. According to the method, firm anchoring of the coating and the carbon fibers is achieved, and the interface load transmission efficiency and the interlayer shear strength of the carbon fiber / polyether-ether-ketone composite material can be remarkably improved. The method is mild in process condition, easy in parameter control and convenient in post-treatment, meets green manufacturing requirements, and has remarkable large-scale production advantages.

The invention relates to a particle-reinforced Poly Ether Ether Ketone (PEEK) matrix composite material which exhibits superior wear resistance and mechanical qualities, and its method of preparation. This composite material offers superior mechanical and tribological qualities, as well as an extended service life, in comparison to PEEK-based composites utilized in the contemporary medical and aviation industries.

The invention relates to a high-insulativity tearable laminated gasket, a preparation method and application. Comprising at least two layers of stacked films which are bonded into a whole through an adhesive. Wherein the film is one of a polyimide film, a polyethylene film, a polyether-ether-ketone film or a polytetrafluoroethylene film; the adhesive comprises epoxy resin, a flexibilizer, an amine curing agent and a filler, through preparation of the high-insulativity tearable laminated gasket, the technical problems that in the prior art, an insulativity gasket needs to be used in the fields of electronics, electrics, aerospace and the like, and an existing gasket contains a metal layer or is high in dielectric constant and cannot meet the use requirement are solved.

The invention particularly discloses a preparation method and application of a composite ion exchange membrane. The composite ion exchange membrane is prepared from the following components in parts by weight: 95 to 110 parts of perfluorinated sulfonic acid resin, 5 to 8 parts of functionalized multi-walled carbon nanotubes, 10 to 15 parts of phosphotungstic acid, 1 to 1.8 parts of cerium-tannin complex, 12 to 20 parts of polyphenylene sulfide enhanced net, 30 to 40 parts of sulfonated polyether ether ketone solution, 3 to 5 parts of MXene-silicotungstic acid compound and 1 to 3 parts of polyethyleneimine cross-linking agent. The preparation method comprises the following steps: preparing the functionalized multi-walled carbon nanotube and the cerium-tannin complex; blending the perfluorinated sulfonic acid resin and the functional filler to prepare a membrane casting solution, and coating to form a membrane; a PPS reinforced net and an SPEEK solution are subjected to composite reinforcement, the PPS reinforced net and the SPEEK solution are subjected to PEI crosslinking and then superposed with the membrane, an MXene-silicotungstic acid compound is sprayed on the surface, and the composite ion exchange membrane is obtained through hot pressing and acid activation, has high proton conductivity and excellent mechanical strength and chemical stability and can be applied to a proton exchange membrane electrolytic cell and an all-vanadium redox flow battery.

The invention provides a laser-induced surface metallized glass fiber reinforced polyether-ether-ketone modified material and a preparation method thereof. The laser-induced surface metallized glass fiber reinforced polyether-ether-ketone modified material is prepared from the following components in percentage by weight: 39%-69.5% of PEEK resin, 20%-40% of low-dielectric flat glass fiber, 5%-10% of low-dielectric filler, 5%-10% of Cu-Ni coordination compound and 0.5%-1% of antioxidant. According to the invention, the Cu-Ni coordination compound is added into the PEEK modified material, then the PEEK modified material is subjected to laser induction treatment with a specific wave band, reducing cuprous ions or nickel ions are obtained on the surface layer of the PEEK modified material, and then the reducing cuprous ions or nickel ions are catalytically reduced into metal atoms through an electroplating process, so that the metal layer is embedded into the PEEK base material, and the binding force between the metal coating and the PEEK base material is improved.