319 results about "Polyaryletherketone" patented technology

The invention relates to the technical field of catalyst materials, and particularly discloses a high-stability hydrogenation catalyst and a preparation method thereof. The invention relates to a preparation method of a high-stability hydrogenation catalyst, which comprises the following steps: preparing a hollow porous microsphere as an inner core from amino-terminated hyperbranched polyaryletherketone and polyvinyl alcohol, and then coating the porous microsphere with a mesoporous silicon dioxide intermediate layer by a sol-gel method; and finally, forming an Mg-Al hydrotalcite layer on the outermost side through a coprecipitation method, dipping and modifying with La (NO3) 3 and Ce (NO3) 3 solutions to obtain a catalyst carrier, dipping the catalyst carrier in an active metal dipping solution, and drying to obtain the catalyst. The high-stability hydrogenation catalyst provided by the invention has excellent mechanical properties and more reaction active sites, has high catalytic activity and catalytic efficiency, and is relatively long in catalytic life.

The utility model relates to the field of high polymer materials, in particular to a polyaryletherketone resin pre-impregnated line material winding and forming device which is used for preparing polyaryletherketone resin pre-impregnated line materials and comprises a translation table top, a material impregnating groove, a guide column and a tensioning pulley. According to the present invention, with the structural design such as a driving system and the like, the carbon fiber can be immersed in the polyaryletherketone resin at low cost and high efficiency to obtain the sheet-shaped prepreg, the sheet-shaped prepreg is subjected to hot pressing to form the polyaryletherketone resin-based composite material of the fiber fabric, and the composite material has characteristics of excellent strength, wide application, and easy promotion and application. Wide application prospects are realized in the fields of aviation, aerospace equipment and high-end civil use.

The invention discloses a carbon fiber sizing agent composition suitable for thermoplastic resin, sized carbon fiber, a carbon fiber sizing agent as well as a preparation method and application of the carbon fiber sizing agent, belongs to the technical field of carbon fiber sizing agents, and solves the problem that a sizing agent in the prior art cannot meet excellent mechanical properties and high temperature resistance at the same time. The composition is prepared from the following components in parts by weight: 15 to 35 parts of modified polyaryletherketone resin matrix, 0.3 to 2 parts of neutralizer, 1 to 3 parts of emulsifier, 1.5 to 3 parts of defoaming agent and 57 to 80 parts of deionized water. The sizing agent containing the composition has good wettability and film-forming property on the surface of the carbon fiber, and meanwhile, the sizing agent is matched with other components with specific contents in the composition, so that the carbon fiber sizing agent containing the carbon fiber sizing agent composition has excellent heat resistance, can bear processing at the high temperature of 350 DEG C or above, and has good application prospects. And the composite material containing the sizing agent has excellent interlaminar shear strength.

The invention discloses a polyetherimide / polyaryletherketone composite material with high breakdown performance and mechanical toughness as well as a preparation method and application of the polyetherimide / polyaryletherketone composite material, and belongs to the technical field of polyetherimide insulation. The invention solves the problems that the dielectric constant of the polyetherimide can be improved by increasing the use amount of the conductive filler in the prior art, but the breakdown performance of the polyetherimide is reduced, so that the polyetherimide cannot have toughness and high breakdown performance at the same time. According to the invention, polyetherimide and polyaryletherketone are used as raw materials and are mixed by adopting a solution blending method, then a substrate is coated with the mixture, and the polyaryletherketone / polyetherimide / polyaryletherketone composite material is obtained through curing. According to the invention, polyetherimide and polyaryletherketone are well dispersed on a microscopic scale, and the composite material has low dielectric loss of polyetherimide and high toughness of PAEK, and has good dielectric properties and breakdown electrical strength; the material is suitable for the advanced fields of high-energy density capacitors, power electronic devices, aerospace electrical insulation parts, new energy automobile high-voltage systems and the like.

The invention discloses a phenolphthalein-based polyaryletherketone polymer and a preparation method thereof, and the phenolphthalein-based polyaryletherketone polymer is prepared from the following raw materials: 240 to 370 parts of phenolphthalein monomer, 45 to 150 parts of modified phenolphthalein, 140 to 220 parts of 2, 6-dichlorobenzonitrile and 3 to 12 parts of alkyl halide. The modified phenolphthalein is prepared from phenolphthalein and a modifier; the modifying agent is selected from at least one of 3-amino propyl trimethoxy silane, 3-amino propyl triethoxy silane, bis (aminopropyl) polydimethylsiloxane, and aminopropyl terminated polydimethylsiloxane. By introducing a siloxane side chain and a cyano side bond and using long-chain aliphatic hydrocarbon for end capping, the bonding capacity of the polymer and other materials is improved, and meanwhile, the high temperature resistance and toughness of the polymer are kept.

The invention relates to the technical field of composite materials, in particular to a polyaryletherketone-based shape memory composite material and a preparation method thereof. Comprising a terpolymer, shape memory polyurethane, a first heat-conducting filler and a second heat-conducting filler, 4, 4 '-difluorobenzophenone and hydroquinone are firstly pre-polymerized to obtain a PEEK prepolymer, the PEEK prepolymer is terminated by a hydroxyl olefine acid ester monomer to obtain a terminated copolymer, and then an acrylate monomer and the terminated copolymer are subjected to double-bond addition to obtain the terpolymer; the first heat-conducting filler is a one-dimensional nano heat-conducting filler; the second heat-conducting filler is a zero-dimensional and / or two-dimensional heat-conducting substance; the prepared composite material has the shape fixing rate of 85% or above and the shape recovery rate of 87% or above, the recovery time is shorter than 25 seconds, and the good shape memory performance is achieved.

The invention discloses a composite material with a shielding function, a preparation method thereof and an interphone shell. The composite material comprises a polycarbonate-acrylonitrile-butadiene-styrene copolymer, a modified conductive filler, maleic anhydride grafted polyethylene, polyaryletherketone, a flame retardant, an antioxidant, glass microfibers and a compatilizer, wherein the modified conductive filler is aluminum oxide ceramic particles subjected to chemical copper plating and graft polymerization treatment. The preparation method comprises the steps of modified conductive filler preparation, step-by-step raw material mixing, twin-screw extrusion granulation and drying. The interphone shell is prepared from the composite material through injection molding, and the injection molding process comprises the steps of raw material drying, injection molding machine preheating, charging and injection molding, and demolding and finishing. The composite material is stable in electromagnetic shielding performance and has good mechanical strength and heat resistance; the preparation method can improve the dispersity of the components and is adaptive to conventional equipment; the interphone shell can block electromagnetic wave interference, is suitable for being used in multiple environments, and meets the requirements of an electronic equipment shell for shielding and structural performance.

The invention relates to the technical field of high polymer material modification, in particular to an antistatic polyaryletherketone composite material with low filler content and a preparation method thereof, the antistatic polyaryletherketone composite material comprises polyaryletherketone resin, 3%-5% of one-dimensional conductive filler and 1%-3% of ionic liquid modified two-dimensional conductive filler; the preparation method comprises the following steps: mixing a one-dimensional conductive filler with an ionic liquid modified two-dimensional conductive filler, performing ball milling, mixing with an amino silane coupling agent solution, performing ultrasonic treatment, pre-mixing the pre-treated filler obtained by drying with polyaryletherketone, and performing melt blending extrusion to obtain the low-filler-content anti-static polyaryletherketone composite material. The composite material disclosed by the invention is low in filler content and relatively good in comprehensive antistatic property and mechanical property.

The invention provides a sizing carbon fiber as well as a preparation method and application thereof. The sizing carbon fiber comprises a carbon fiber tow and a polyimide sizing agent loaded on the surface of the carbon fiber tow, the polyimide sizing agent has a structural unit shown as a formula I. Polyimide with the same ether ketone structure as the polyaryletherketone resin is adopted as a sizing agent, so that the carbon fibers and the polyaryletherketone resin form firm interface bonding more easily, and sufficient infiltration of the polyaryletherketone resin on the carbon fibers in the automatic laying process is facilitated; the internal defects of the composite material obtained through automatic laying forming are reduced, and the mechanical property of the composite material is improved; and the polyimide sizing agent has good temperature resistance and is suitable for preparing a carbon fiber reinforced high-performance thermoplastic composite material.

The invention discloses a polyaryletherketone composite implant material and a preparation method and application thereof, and belongs to the technical field of medical materials.The preparation method of the polyaryletherketone composite implant material comprises the following steps that a carbon fiber reinforced polyaryletherketone substrate with the surface provided with a groove structure and conductivity is prepared; based on a precipitation method, a calcium compound, a magnesium compound and a phosphoric acid aqueous solution are used for preparing white calcium stone; the preparation method comprises the following steps: carrying out surface modification on the white calcium phosphate by utilizing polydopamine, so as to obtain modified white calcium phosphate; adding the modified white calcium phosphate and a degradable piezoelectric polymer into a solvent, and mixing to obtain a mixed solution; and coating a carbon fiber reinforced polyaryletherketone substrate with the mixed solution, and performing drying and annealing treatment to form a coating, thereby obtaining the polyaryletherketone composite implant material. According to the invention, the degradable piezoelectric composite coating doped with the white phosphorus calcium stone, which has piezoelectric characteristics and ion release capability, is constructed, so that double biomimetic effects of an electric signal and a chemical signal in a bone healing microenvironment are realized.

The invention discloses a surface protective film and a preparation method thereof, and belongs to the technical field of protective films. The surface protection film comprises a surface layer, a core layer and a bonding layer which are arranged in sequence, the surface layer comprises first polypropylene matrix resin, an organic ultraviolet absorbent and an inorganic ultraviolet screening agent; the core layer comprises second polypropylene matrix resin, polyaryletherketone nanofibers and flaky mica powder of which the surface is coated with cerium oxide; the bonding layer comprises a thermoplastic SEBS elastomer, hydrogenated bonding resin, an organic zinc compound, an ultraviolet light stabilizer and a plasticizer containing an epoxy group. The surface protection film has excellent ultraviolet aging resistance and high temperature resistance, the adhesive force can still be kept within a certain range under the conditions of ultraviolet radiation and high temperature, the surface protection film can be easily unwound under the condition of high temperature, and no residual adhesive is separated out.

The invention relates to the technical field of polyaryletherketone composite materials, in particular to a modified carbon fiber reinforced polyaryletherketone composite material and a preparation method thereof.The preparation method comprises the following steps that S1, polybenzimidazole is attached to the surface of phosphorus-containing group functionalized carbon fiber; s2, in a protective atmosphere, preheating polyaryletherketone in a mold pressing mold, then uniformly laying the phosphorus-containing group functionalized carbon fibers treated in the step S1 on a preheated polyaryletherketone material, and carrying out stepped mold pressing forming, so as to obtain the modified carbon fiber reinforced polyaryletherketone composite material. The interface shear strength of the carbon fiber reinforced polyaryletherketone composite material is greatly improved through the action of surface modification of the phosphoric acid on the carbon fiber and interface transition of the polybenzimidazole.

The invention discloses composite resin for solvent-method prepreg production and a preparation method of the composite resin. The composite resin is prepared from the following raw materials: 35-145 parts of modified amorphous polyaryletherketone; 8 to 35 parts of polycarbonate; 0.5-6 parts of a modified inorganic nano material; the modified amorphous polyaryletherketone comprises high molecular weight modified amorphous polyaryletherketone and low molecular weight modified amorphous polyaryletherketone, and the mass ratio of the high molecular weight modified amorphous polyaryletherketone to the low molecular weight modified amorphous polyaryletherketone is (3-30): 1. A low-molecular-weight modified amorphous polyaryletherketone and high-molecular-weight modified amorphous polyaryletherketone composite system is adopted, the interfacial compatibility of polycarbonate and the modified amorphous polyaryletherketone is improved by utilizing the solubility of the low-molecular-weight modified amorphous polyaryletherketone and utilizing the high specific surface area and surface energy of the modified inorganic nano material, and the high-molecular-weight modified amorphous polyaryletherketone is obtained. The toughness and the impact resistance of the composite material are improved; the requirements of aerospace, new energy automobiles, rail transit and other parts on the high-strength and high-toughness composite material are met.

The invention belongs to the technical field of high polymer materials, and particularly relates to fluorine-containing polyaryletherketone, a preparation method and application thereof, a polymer film material and application thereof. The invention provides fluorine-containing polyaryletherketone which has a structural formula as shown in a formula I. X comprises a: b = (0-0.67): (0.33-1), and a is not equal to 0; n is the degree of polymerization; the crystallinity of the fluorine-containing polyaryletherketone is 15 to 25 percent. A fluorine-containing group with a low surface energy characteristic is introduced into the polyaryletherketone, so that the polyaryletherketone easily falls off in a friction environment and forms a transfer film, and the friction coefficient of the fluorine-containing polyaryletherketone is effectively reduced; meanwhile, the fluorine-containing polyaryletherketone has structural symmetry of molecular chain segments, so that the problem that the crystallinity is remarkably reduced due to the fact that more fluorine-containing groups are added into the polyaryletherketone can be solved, and the crystallinity and modulus of the fluorine-containing polyaryletherketone are effectively maintained; the fluorine-containing polyaryletherketone provided by the invention has a relatively low friction coefficient and also has good mechanical properties.

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 relates to the technical field of high-performance pipe preparation, in particular to a heat-resistant Krah pipe and a preparation method thereof. The ultrahigh-density polyethylene composite material is prepared from ultrahigh-density polyethylene, polyaryletherketone, boron nitride-silicon carbide nanowire-graphene three-dimensional network filler, a maleic anhydride grafted ethylene-octene copolymer, organic montmorillonite, silane coupling agent modified carbon fibers, a composite antioxidant and a lubricant. The three-dimensional network filler is prepared by carrying out hydroxylation on graphene, modifying with a silane coupling agent, and reacting with aminated boron nitride nanosheets and silicon carbide nanowires under the action of a cross-linking agent; the modified carbon fiber is obtained by ultrasonic treatment of a silane coupling agent solution and high-temperature drying. Through the innovative formula and process, the heat deformation temperature of the Krah pipe exceeds 280 DEG C, the ring stiffness reaches 18 kN / m or above, the elongation at break reaches 300% or above, and the chemical resistance is improved; the gradient cooling process controls the longitudinal shrinkage rate to be smaller than 1%, the production cost is reduced, and the advantages of high temperature resistance, extrusion resistance, long service life and economical efficiency are achieved.

The invention relates to the technical field of high-molecular polymers and surface chemical modification thereof, in particular to a low-dielectric-constant polyaryletherketone material and a preparation method thereof, and a flexible copper foil laminated structure and a preparation method thereof. The low-dielectric-constant polyaryletherketone material is obtained by taking a bisphenol monomer and difluorobenzophenone as reaction monomers and carrying out aromatic nucleophilic polycondensation reaction; wherein the bisphenol monomer is selected from a combination of C3-C8 normal or isomeric alkyl substituted hydroquinone and bisphenol containing at least one aryl group; the bisphenol containing at least one aryl group is selected from one or more of bisphenol AP, bisphenol BP, bisphenol Z and bisphenol fluorene; the low-dielectric-constant polyaryletherketone material forms a thin film, the surfactant treatment layer and the grafting layer are sequentially formed on the thin film, then the thin film is compounded with the copper foil, and the formed flexible copper foil laminated structure has high peel strength and low dielectric constant.

An extrusion product, such as a film, pipe, or cable / wire sheath, includes a first layer and a second layer. The first layer includes a polymeric material (A) having repeating units of the formula: -0-Ph-0-Ph-CO-Ph I and repeating units of the formula: -0-Ph-Ph-0-Ph-CO-Ph II, where Ph represents a phenylene moiety. The second layer may be a polyaryletherketone (PAEK), such as polyetheretherketone (PEEK). The first layer is intended to reduce the formation of deposits on the die of an extrusion device during extrusion of the product. A method for producing a product including the first layer and the second layer, as well as the use of the polymeric material (A) to reduce the formation of deposits on the die of an extrusion device during extrusion of a second polymeric material, are also described.

This application relates to a polyaryletherketone copolymer and a method for preparing the same. The polyaryletherketone copolymer is basically composed of repeating units of Formula I and repeating units of Formula II: O-Ph-O-Ph-CO-Ph Formula I; O-Ph-Ph-O-Ph-CO-Ph Formula II; wherein the molar ratio of the repeating units of Formula I to the repeating units of Formula II is 50:50 to 95:5, preferably 60:40 to 90:10, more preferably 70:30 to 85:15; and the polydispersity index (PDI) of the polyaryletherketone copolymer is at most 3.0, preferably at most 2.9, more preferably at most 2.8, and most preferably at most 2.7.

The invention discloses N-alkylated / sulfonated benzimidazole polyaryletherketone / polyaryletherketone sulfone with controllable grafting density as well as a preparation method and application of the N-alkylated / sulfonated benzimidazole polyaryletherketone / polyaryletherketone sulfone. The preparation method comprises the following steps: firstly, introducing a protecting group on a phenolic hydroxyl group of a bisphenol monomer containing a benzimidazole structure, then carrying out nucleophilic substitution reaction on alkyl halide / alkyl halide sulfonic acid and-NH, and then removing the protecting group to obtain an N-alkylated / sulfonated benzimidazole functionalized bisphenol monomer; copolymerizing the monomer, a bisphenol monomer and a difluoro monomer to obtain a polymer; alkyl or alkyl sulfonic acid is introduced to a benzimidazole ring, so that-NH bonds are passivated, a steric hindrance effect is formed, and gelation of the polymer under a high polymerization degree is avoided; by adjusting the molar ratio of the monomers, the retention stability of the functional groups can be effectively controlled, and compared with the traditional grafting on the polymer, the non-regulation of functionalization and the gelation of the polymer are effectively avoided.

The invention belongs to the field of polymer composite materials, and discloses an antistatic composite material for a safety helmet and a preparation method of the antistatic composite material. Comprising the following components: 70 to 90 parts of a PC / ABS blending matrix, 12 to 20 parts of basalt fiber treated by a titanate coupling agent NDZ-311, 4 to 8 parts of a graphene quantum dot modified carbon nanotube-polyethylene glycol composite antistatic agent, 3 to 6 parts of polyaryletherketone micro powder, 0.2 to 0.6 part of an antioxidant 1010 and 0.4 to 1.0 part of calcium stearate. Wherein the mass ratio of PC to ABS in the PC / ABS blended matrix is (6: 4)-(7: 3); the invention aims to solve the problems that in the prior art, a single antistatic agent is difficult to consider the antistatic effect and the mechanical property, or materials are embrittled due to high addition amount, or the antistatic property fluctuates along with the environment and is easy to lose due to low addition amount; the interface bonding force between the conventional reinforced fiber and the PC / ABS matrix is weak, and the mechanical strength is limited to be improved; the long-term aging resistance of the material is poor, and the long-term use requirements of outdoor, chemical and other severe environments cannot be met.

There is provided a method of annealing granules of a polyaryletherketone, PAEK, polymer to obtain annealed granules suitable for use in an additive manufacturing process. The method comprises: a) obtaining precursor granules of the PAEK polymer, wherein the precursor granules have a crystallinity of between about 0% and 20%, as measured by differential scanning calorimetry, DSC; and b) heating the precursor granules to an annealing temperature to thereby obtain annealed granules, wherein the annealing temperature is at least a glass transition temperature, Tg, of the PAEK polymer and at most about 50°C less than a melting temperature, Tm, of the PAEK polymer. following annealing in b), the annealed granules have a crystallinity of between about 15% and 35%, as measured by DSC, and wherein the annealing in b) increases the crystallinity of the precursor granules by at least 2%.

The application relates to a polyaryletherketone resin, a preparation method thereof and application thereof in functional membranes, and belongs to the technical field of functional polymer materials. First, an aromatic monomer 4,4'-((9-(6-(4-tritylphenoxy)hexyl)-9H-carbazole-3,6-diyl)bis(diphenylmethylene))diphenol (monomer 1) containing a dense benzene ring and a flexible side group is prepared; then, through a nucleophilic substitution reaction catalyzed by K2CO3, a polyaryletherketone precursor polymer containing a Schiff base is prepared by taking 1,1-bis(4-fluorophenyl)-N-phenylmethane imine, 4,4'-dihydroxydiphenyl ketone and the monomer 1 as raw materials; after the polyaryletherketone precursor polymer is sulfonated by concentrated sulfuric acid, a polyaryletherketone resin containing sulfonic acid groups is prepared; after the polyaryletherketone resin is dissolved in dichloroacetic acid, a polyaryletherketone ion exchange functional membrane is prepared by adopting a flow extension method, and the membrane has the advantages of excellent oxidation resistance stability, good dimensional stability and solution processing property and the like.

The invention discloses a medical polyaryletherketone implant and a surface modification method thereof, and the method comprises the following steps: immersing a polyaryletherketone material matrix into a saturated sodium carbonate solution used as a foaming agent, taking out the polyaryletherketone material matrix, and carrying out concentrated sulfuric acid ultrasonic treatment at room temperature; alternately treating with a saturated sodium carbonate solution and concentrated sulfuric acid until a microporous network is formed on the surface of the polyaryletherketone material matrix; carrying out surface phosphorylation on the polyaryletherketone material matrix with the microporous network formed on the surface by using a diazo reaction to obtain a surface phosphorylated matrix; treating the surface phosphorylated matrix by adopting a hydrothermal method and a chemical coprecipitation method, and forming a biomineralization layer doped with antibacterial metal ions on the surface of the matrix; and freeze-drying a hydrogel coating doped with antibacterial fatty acid on the surface of the matrix to obtain the medical polyaryletherketone implant.

The invention relates to the technical field of proton exchange membranes, and discloses a novel nano-composite membrane with acid doped with pyridine side chains, the composite membrane comprises a difunctional pyridine side group-containing polyaryletherketone polymer, an acid-doped pyridine side chain-containing polyaryletherketone polymer, and an acid-doped pyridine side chain-containing polyaryletherketone polymer, a hexagonal boron nitride nanosheet (h-BN); the polymer is obtained by copolymerizing a monomer (2, 6-bis (4-hydroxyphenyl) pyridine) containing a pyridine side group, a monomer (4, 4 '-(1, 2-vinyl) diphenol) containing a vinyl side chain and the like, and the composite membrane is prepared by preparing the polymer and h-BN into a base membrane, then doping with a phosphoric acid solution, and finally performing heat treatment at 140-180 DEG C to initiate vinyl crosslinking. According to the invention, a dual dopant retention mechanism is constructed by utilizing the acid-base adsorption effect of a pyridine group on phosphoric acid and the physical locking effect of a thermal cross-linked network on phosphoric acid, the nanosheet provides physical barrier, and the composite membrane has high proton conductivity, low vanadium ion permeability and excellent long-term stability.

The present application discloses a non-fluorine polyaryletherketone (nitrile) resin, which adjusts the size and position of the long-chain side groups through the main chain structure design, further reduces the close stacking between the molecular chains, and can form a larger pore structure during the molding process, so that it has a lower dielectric constant and dielectric loss. At the same time, the material does not produce toxic and harmful substances such as fluorophosgene when treated at high temperatures, ensuring the safety of the material. The non-fluorine low-dielectric polyaryletherketone (nitrile) resin of the present application has the advantages of low dielectric constant and low dielectric loss, and is widely used in 5G and higher frequency communication fields.

The utility model discloses process equipment for preparing amorphous polyaryletherketone carbon fiber prepreg by a solution method, which comprises a microwave solvent removing device which comprises a solvent removing cavity and a plurality of groups of glue scraping rollers arranged in the solvent removing cavity, the multiple sets of glue scraping rollers are sequentially arranged in the solvent removing cavity in the conveying direction of the carbon fibers, and the height of the glue scraping roller close to an inlet of the solvent removing cavity in the vertical direction is larger than or equal to the height of the adjacent glue scraping roller close to an outlet of the solvent removing cavity in the vertical direction. A plurality of groups of glue scraping rollers are designed at the same time, so that the retention time of the prepreg in the microwave solvent removing device is controllable, a solvent is fully volatilized, the height of the glue scraping rollers in the vertical direction is limited, redundant resin on the prepreg flows and is enriched, certain pressure is applied through the glue scraping rollers, the redundant resin is removed, the resin content is controllable, and the resin content is improved. Meanwhile, the combination with fibers is tighter, and the quality of the prepreg is obviously improved.

Polyaryletherketone aerogels. In particular, a method of making polyaryletherketone aerogels using environmentally benign solvents for gel formation. In addition, a method is provided for 3D printing of such polyaryletherketone aerogels. The polyaryletherketone aerogels may specifically be sourced from poly(ether ether ketone) (PEEK) or poly(ether ketone ketone) (PEKK).

The invention discloses a crystalline polyaryletherketone-based porous nanoparticle composite membrane as well as a preparation method and application thereof, and belongs to the technical field of interface regulation and preparation of polymer composite membranes. According to the invention, a polyaryletheramine precursor containing a ketimine structure is converted into the polyaryletherketone composite material through a crystallization-induced shrinkage strategy; meanwhile, preparation of polyaryletherketone and interface recombination repair of polyaryletherketone and blended porous nano materials (such as a covalent organic framework material, a covalent organic polymer, a metal organic framework material, a hydrogen bond organic framework and the like) are realized. According to the preparation method, the problems that a polyaryletherketone material is difficult to form a film in a solution, the interface of the polyaryletherketone material and the nano material has defects and the like are fully solved, the composite film with excellent solvent resistance and separation performance is obtained by optimizing experimental conditions, and the composite film realizes uniform dispersion of the nano material on a PEEK substrate; the polymer has excellent thermal stability, solvent stability and separation performance, and has excellent development prospects in the fields of water treatment, dye separation, drug purification and the like.

The invention belongs to the technical field of high polymer materials, and particularly relates to a polyaryletherketone compound as well as a preparation method and application thereof. The invention provides a polyaryletherketone compound. The polyaryletherketone compound has a structure as shown in a formula I which is described in the specification. The polyaryletherketone compound provided by the invention can remarkably inhibit thermal degradation and crosslinking of polyaryletherketone resin in a high-temperature processing process, greatly improves the melt processing stability of the polyaryletherketone resin, remarkably improves the thermal stability, processability and product appearance of the polyaryletherketone resin, is simple and convenient in process, is suitable for various polyaryletherketone resins, and has wide application prospects. The method has important industrial application value and wide market prospect.