216 results about "Polyaryletherketone" patented technology

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 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 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.

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 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 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 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.

The application relates to the technical field of composite materials, and discloses a mixed-fiber fabric reinforced thermoplastic composite material laminated plate and a preparation method and application thereof. The laminated plate is obtained by die molding a preformed body, wherein the preformed body comprises a plurality of mixed-fiber fabrics and thermoplastic resin films which are sequentially stacked in layers, and the thermoplastic resin film is selected from one or more of a polyamide film, a polyphenylene sulfide film, a polyether ether ketone film, a poly (aryl ether ketone) film, a polycarbonate film and a polysulfone film. The prepared thermoplastic laminated plate is uniform in resin distribution and excellent in comprehensive mechanical properties.

This invention relates to the field of polyaryletherketone (PAEK) material modification technology, specifically to an ultra-low temperature resistant PAEK composite material and its preparation method, comprising the following materials: PAEK resin, polyethersulfone resin, aramid fibers with surface carboxylation pretreatment, sheet-like thermally conductive filler with a thermal conductivity of at least 400 W / m·K, and a coupling agent; this invention, through the synergistic blending modification of sheet-like thermally conductive filler with polyethersulfone (PES) microspheres and aramid fibers, achieves the advantages of high strength, high toughness, and low thermal stress in the composite material under extreme low temperature environments.

The invention provides low-surface-energy polyaryletherketone resin and a preparation method and application thereof.The low-surface-energy polyaryletherketone resin is polyaryletherketone resin grafted with a siloxane side chain, and the mass ratio of the siloxane side chain to the polyaryletherketone resin is (5-20): 100; the polyaryletherketone resin with low surface energy contains a siloxane side chain; the value range of the polymerization degree of the polyaryletherketone is 30 to 600. According to the polyaryletherketone resin with low surface energy provided by the invention, a siloxane side chain is introduced to a main chain of the polyaryletherketone resin, so that the surface energy of the polyaryletherketone resin is reduced, and the polyaryletherketone resin has better self-lubricating performance, lower surface friction coefficient and better demolding performance.

The invention relates to a composition comprising: a poly(ether ketone ketone), PEKK1; a thermoplastic polyimide having a glass transition temperature greater than or equal to 230°C, TPI; and optionally, a poly(aryl ether ketone), PAEK, PAEK being distinct from PEKK1. PEKK1 represents at least 50% by weight, relative to the total weight of PEKK1, TPI and, where applicable, PAEK, of the composition. PAEK is necessarily present when the TPI content is greater than or equal to 20% by weight, and preferably when the TPI content is greater than or equal to 15% by weight, relative to the total weight of PEKK1 and TPI of the composition.

The application discloses a bisphenol A type haloketone monomer, a polyaryletherketone resin and a preparation method and application thereof. The polyaryletherketone resin is a linear polymer composed of structural unit 1 or a polymer linearly and randomly arranged by structural unit 1 and structural unit 2: -R1-A-, structural unit 1; -R2-A-, structural unit 2; wherein A is 1'4-benzenedioxy, 1'3-benzenedioxy or 4'4-biphenyldioxy. The polyaryletherketone resin prepared by using the bisphenol A type haloketone monomer has better mechanical properties, and also has better thermal stability and crystallinity.

This invention relates to the field of polyaryletherketone (PBO) composite materials, specifically to a high thermal conductivity PBO composite material and its preparation method. The composite material includes PBO and PAEK materials, with the PBO material existing in the form of continuous fibers. The method includes the following steps: PAEK powder is attached to the surface of activated PBO continuous fibers by electrostatic adsorption to form pre-coated continuous fibers; one or more bundles of pre-coated continuous fibers are arranged closely in parallel along a single direction, and PAEK powder is spot-welded to the fiber surface or multiple bundles of fibers are fixed in a heating environment below the melting point temperature of PAEK but above its glass transition temperature to obtain a unidirectional prepreg; it is woven with a PBO-based fine-structure material, and the resulting composite fabric is laminated and pressed with a PAEK film and then annealed to obtain the composite material. This invention achieves complete wetting of the PBO thermally conductive fiber interface, with a small amount of fiber added and a continuous thermally conductive network, maximizing thermal conductivity.

The invention provides amino-terminated polysilsesquioxane (amino POSS) modified polyaryletherketone as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The preparation method of the amino POSS modified polyaryletherketone provided by the invention comprises the following steps: mixing a polyaryletherketone polymer, oxalyl chloride and tetrahydrofuran, and carrying out nucleophilic substitution reaction to obtain an intermediate 1; and mixing the intermediate 1, amino POSS (polyhedral oligomeric silsesquioxane) and tetrahydrofuran, and carrying out polymerization reaction to obtain the amino POSS modified polyaryletherketone, the substitution number of amino in the amino POSS is greater than or equal to 2. The amino POSS modified polyaryletherketone synthesized by the invention is crosslinkable PAEK resin, PAEK resin with different crosslinking structures and different crosslinking degrees can be obtained by using POSS cage structure modification, the PAEK resin not only has a crosslinking network structure, but also keeps better mechanical properties, processability and heat resistance, and meanwhile, the interface matching performance with fibers is improved.

The invention relates to the technical field of fiber sizing agents, in particular to a high and low temperature cycle stable sizing agent for a carbon fiber paving material and a preparation method thereof.The high and low temperature cycle stable sizing agent for the carbon fiber paving material is prepared from, by weight, 0.5-2 parts of sulfonated polyaryletherketone resin, 95-99 parts of deionized water and 0.1-0.5 part of surfactant, and 0.1 to 0.5 part of a modified carbon nanotube. The prepared sizing agent for the carbon fiber paving material has excellent high and low temperature cycle stability, and the preparation method is simple.

This invention relates to the field of high-performance thermoplastic composite materials, and in particular to a method for preparing polyaryletherketone resin. The method includes the following steps: under a non-oxidizing atmosphere, a dihydroxy aromatic monomer containing a bisphenol structure, a dihalogenated aromatic monomer containing a nitrile group, and a dihalogenated aromatic ketone monomer containing a difluorine substituted group are reacted in a polar solvent system with a boiling point above 150°C in the presence of an alkali metal carbonate to form the corresponding phenolate; an aromatic hydrocarbon dehydrating agent is added to the system for azeotropic dehydration to remove water generated during the reaction and promote the formation of the phenolate; a nucleophilic substitution polycondensation reaction is carried out at a higher temperature; during the polycondensation reaction, a capping agent is added to regulate the end-chain structure and molecular weight distribution, wherein the capping agent is 2,4′-difluorobenzophenone; after the reaction is completed, the reaction product is separated and purified to obtain the polyaryletherketone resin.

The present application relates to polyether ether ketone composite material technical field, disclose a kind of polyether ether ketone-based high temperature resistant composite material and its preparation method and application.Polyether ether ketone-based high temperature resistant composite material, raw material is by weight parts, including:polyether ether ketone 48~66 parts, modified polyarylate ether ketone 10~20 parts, composite filler 24~32 parts;The composite filler includes carbon fiber and poly-p-phenylene benzobisoxazole fiber.Preparation method: the formula amount of modified polyarylate ether ketone is dissolved in dipolar aprotic solvent, formula amount of carbon fiber is added and soaked, after removing solvent, get the sample of sizing;Formula amount of polyether ether ketone, prepared sizing sample and poly-p-phenylene benzobisoxazole fiber are mixed uniformly after heat pressing molding, obtain polyether ether ketone-based high temperature resistant composite material.The modified polyarylate ether ketone is applied to military, energy power, ship and submarine field.The polyether ether ketone-based high temperature resistant composite material provided by the present application improves the interfacial properties of polyether ether ketone and poly-p-phenylene benzobisoxazole fiber, polyether ether ketone and carbon fiber, thereby improving the tensile strength and bending strength of polyether ether ketone-based high temperature resistant composite material.

The invention provides a modified polysiloxane coating and a preparation method thereof, a non-stick layer and a vessel. Wherein the modified polysiloxane coating comprises modified polyaryletherketone and a polysiloxane coating which is dispersed with liquid silicone oil and is in a liquid state, the modified polyaryletherketone is dispersed in the polysiloxane coating and is compounded with at least one part of the liquid silicone oil, and the modified polyaryletherketone is polyaryletherketone resin grafted with a polycondensable group. According to the modified polysiloxane coating provided by the embodiment of the invention, the modified polyaryletherketone can be dispersed in the polysiloxane coating in a chemical activity manner and compounded with the liquid silicone oil due to the polycondensable group, and in the subsequent process of forming the non-stick layer through the modified polysiloxane coating, the non-stick layer can be formed by the polyaryletherketone in a chemical activity manner. And a polycondensation group of the modified polyaryletherketone can be cross-linked with the polysiloxane coating to form a net structure to coat the liquid silicone oil, so that a wear-resistant and corrosion-resistant non-stick layer which is non-stick for a long time can be obtained.

This invention discloses a bismaleimide-modified polyaryletherketone (PAK) composition, its preparation method, and its applications, belonging to the technical field of polymer materials and high-temperature insulating coatings. The composition comprises a PAK polymer, a bismaleimide crosslinking agent, and a free radical catalyst. The PAK polymer backbone or side chains contain cyano functional groups that participate in the crosslinking reaction, and the bismaleimide crosslinking agent contains active maleimide functional groups, which react with the cyano groups of the PAK polymer backbone to form a slightly crosslinked network structure. The novel slightly crosslinked network polymer film prepared by this invention exhibits strong solvent resistance, excellent material processing properties, and superior insulation properties at high temperatures.

The application relates to the technical field of polyaryletherketone, and discloses a modified polyaryletherketone as well as a preparation method and application thereof. The structural formula of the modified polyaryletherketone is as follows: wherein the value range of n is 1-40% (m+n), and the value range of m is 60-99% (m+n). The preparation method is as follows: under a nitrogen atmosphere, decafluorobiphenyl ketone, 4-4'-difluorobenzophenone and biphenol are mixed, anhydrous carbonate, an aprotic polar solvent and a water-carrying agent are added, and a programmed temperature reaction is carried out at 140-200 DEG C to obtain the modified polyaryletherketone; wherein the molar ratio of the sum of the decafluorobiphenyl ketone and the 4-4'-difluorobenzophenone, the biphenol and the anhydrous alkali metal carbonate is 1:(1-1.1):(1-1.3). The modified polyaryletherketone is used for preparing a radiation cooling material.

The invention relates to a polymer-based solid-state electrolyte membrane, a manufacturing method thereof, and a solid-state electrolyte battery capable of being used at high temperature. The polymer-based solid electrolyte membrane comprises a heat-resistant polymer nanofiber membrane, an electrolyte material for impregnating and / or coating the heat-resistant polymer nanofiber membrane, and a lithium salt, the heat-resistant polymer nanofiber membrane is formed into a membrane shape through free interweaving of fibers of a heat-resistant polymer, and the heat-resistant polymer is selected from at least one of polyacrylonitrile, polyvinylpyrrolidone, polyvinyl alcohol, polyetherimide, aromatic polyamide, polyphenylene ether and polyaryletherketone. The electrolyte material is in a solid state and is selected from at least one of polyethylene oxide or polyethylene glycol diamine. The solid electrolyte battery according to the present invention comprises a positive electrode, a negative electrode, and a solid electrolyte membrane interposed between the positive electrode and the negative electrode, the solid electrolyte membrane comprising the polymer-based solid electrolyte membrane.

The application discloses a kind of poly (heteronaphthalene-biphenyl) poly (aryl ether ketone) resin hot dissolution process, it is related to the field of polymer processing technology. Including the following steps: poly (heteronaphthalene-biphenyl) poly (aryl ether ketone) resin powder is added into organic solvent, and initial mixture is obtained by low-speed stirring mixing;The initial mixture is heated to swelling temperature, and resin particles are fully swollen;Then continue to heat to dissolution temperature, and then constant-temperature stirring is carried out until completely transparent and uniform solution is obtained;Solution is constant-temperature stirring ripening, and after ripening is completed, it is cooled under low-speed stirring, and finally filtered, to obtain clear and transparent poly (heteronaphthalene-biphenyl) poly (aryl ether ketone) resin solution. By using optimized hot dissolution procedure, matching specific solvent system, and combining accurate temperature and time parameter control, rapid and complete dissolution of poly (heteronaphthalene-biphenyl) poly (aryl ether ketone) resin is realized, which has high solid content, low viscosity and excellent long-term storage stability, and meets the needs of industrial processing.