1117 results about "Poly ether ether ketone" patented technology

The normal pressure poly(ether-ether-ketone) purifying process includes the technological steps of purification, suction filtering and washing, and drying. During purification, metered poly(ether-ether-ketone) and metered organic solvent and surfactant used as purifying treating agent and purifying assistant separately inside reactor are heated at normal pressure to the temperature between the vitrification point of poly(ether-ether-ketone) and the boiling point of the purifying treating agent for purification for at least 1 hr. Then, the temperature is lowered to below 100 deg.c, and the product is suction filtered, washed with boiling acetone, absolute alcohol and deionized water, and dried to obtain high purity poly(ether-ether-ketone) product. The said process can lower the content of inorganic ion in poly(ether-ether-ketone) product.

The invention relates to a polyether-ether-ketone composite material which consists of polyether-ether-ketone, nanoparticles, filling materials and addition agent materials. The composite material comprises 75 to 95 portions of polyether-ether-ketone powders, 5 to 10 portions of the nanoparticles, 10 to 20 portions of the filling materials and 2 to 5 portions of the additive agents by weight. The filling materials are glass fiber, carbon fiber, quartz powder and MoS2 or toner. A method of compression moulding forming adopted is that: materials is prepared according to the formula; materials are mixed: the materials prepared according to designed requirements poured into an automatic material mixing machine for evenly mixing, the mixing time is between 0.5 minute and 3 minutes, then compressing process is carried out, and the blended mixture is sent to a mould cavity for moulding. The material can be used for sealing materials products. Various valve sealing elements produced by the invention has properties of creep resisting, corrosion resistance, heat resistance and pressurization, etc.; the ability of pressurization and wear resistance of the material are improved, and at the same time the cost is lowered by 10 to 20 percent or even higher, thus being beneficial to using and promotion of the materials.

The invention belongs to a preparation method of a functional polymer and relates to a preparation method of a polyether-ether-ketone/graphene oxide nano-composite film. The polyether-ether-ketone/graphene oxide nano-composite film is prepared by blending graphene oxide treated by a silane coupling agent, and sulfonated polyether-ether-ketone by a tape casting method, and has high strength and good anti-wear and friction reduction effects. The polyether-ether-ketone/graphene oxide nano-composite film obtained by the preparation method solves the problem of organic and inorganic interface dispersion caused by other preparation methods, and realizes organic/inorganic nano-material compounding in a molecular level. The preparation method has simple processes, is convenient for operation, can be industrialized easily, and has potential application values in fields of structural materials, friction materials, heat-resistant materials and barrier materials.

The invention discloses a polyphenylene oxide/polyamide 6 blend alloy. The polyphenylene oxide/polyamide 6 blend alloy is prepared from the components in the following parts by weight: 20-80 parts of polyphenylene oxide, 10-40 parts of polyamide 6, 5-35 parts of compatilizer, 5-15 parts of toughener, 0.2-0.5 parts of antioxidant, 0.2-0.7 parts of lubricant, and 3-35.5 parts of auxiliaries. The invention further discloses a preparation method for the polyphenylene oxide/polyamide 6 blend alloy and an application for the polyphenylene oxide/polyamide 6 blend alloy as an extruded profile material. The PPO/PA6 (polyphenylene oxide/polyamide 6) blend alloy material disclosed by the invention is high in strength, good in toughness, excellent in corrosion resistance and insulativity, capable of replacing a steel plate or a special engineering plastic, thus realizing the purpose of replacing steel by plastic. Moreover, the PPO/PA6 blend alloy material can be popularized to extruded profiles, as well as is good in wear resistance, heat resistance and dimensional stability, easy to machine and form, and capable of being used by replacing the profiles of stainless steel, PEEK (poly ether ether ketone) and the like in a very large range, thus greatly reducing cost.

The invention discloses a method for preparing sulfonated polymer films, which comprises the following steps: preparing a casting solution and film-forming on the basis of phase-inversion. The sulfonation reaction is carried out between one or two of polyether-ether-ketone (PEEK), phenolphthalein polyaryl ether sulfone (PES-C) or polystyrene (PS) and concentrated sulfuric acid, fuming sulfuric acid or chlorosulfonic acid to obtain a sulfonated polymer solution in the preparation of the casting solution; and then, the film is directly formed on the basis of the phase-inversion method. The sulfonated polymer film prepared by the invention has higher pure water flux and protein retention rate, furthermore, the method has the advantages of good anti-pollution performance, higher mechanical strength and simple preparation process.

Polymer composition (C) comprising

• • a poly(aryl ether ketone) (P1) chosen from polyetheretherketones, polyetherketoneketones and polyetheretherketone-polyetherketoneketone copolymers,
  • a polyphenylsulfone (P2), and
  • a reinforcing fiber (F),

with the exception of

a polymer composition consisting of

90 wt %, based on the total weight of the polymer composition, of a polymer blend consisting of 85 parts by weight of a polyphenylsulfone and 15 parts by weight of a polyetheretherketone, and

10 wt %, based on the total weight of the polymer composition, of glass fiber.

The present description discloses a polymeric composition which is a melt-processed alloy comprised of (a) a polyarylene sulfide resin, (b) a polyaryl-ether-ketone resin, and a reactive compound which results in (c) a graft copolymer of the polyarylene sulfide resin and/or the polyaryl-ether-ketone resin in addition to the starting resins. Exemplary melt-processed polymeric compositions can be made by reacting an alkoxy silane with the polyarylene sulfide resin and/or the polyaryl-ether-ketone resin to produce a graft copolymer of a portion of one or both of the resins, sufficient to render the composition uniform and homogeneous. It is normally preferred for the exemplary organosilane compound, to be an amino silane. The subject invention further reveals an insulated wire comprising (1) an electrical conductor and (2) a layer of the melt-processed alloy composition; and fiber reinforced composites comprising fibers substantially fully impregnated with the alloy polymeric composition.

The invention relates to a three-dimensional braided carbon fiber reinforced polyetheretherketone composite material and a preparation method thereof. Carbon fiber reinforced polyetheretherketone fiber, and carbon fiber which is used as the raw material and accounts for 18-54% by volume, are mixed and braided in a three-dimensional five-direction mode to obtain the three-dimensional braided carbon fiber reinforced polyetheretherketone composite material. The three-dimensional braided carbon fiber reinforced polyetheretherketone composite material is prepared from fibers by a braiding and hot compaction combined technique. The technological process comprises the following steps: carrying out three-dimensional mixing and braiding on the polyetheretherketone fiber and carbon fiber, carrying out solution oxidation pretreatment on the mixed fabric, repeatedly flushing with distilled water, drying, putting the mixed fabric into a die, and carrying out hot compaction. The invention can effectively overcome the difficulties in the preparation of the three-dimensional braided composite material due to the thermoplastic property of the polyetheretherketone, thereby obtaining the three-dimensional braided carbon fiber reinforced polyetheretherketone composite material which has the advantages of sufficient fiber immersion and excellent mechanical properties.

The invention relates to polyether ether-ketone wear-resisting compound material which is strengthened by titanium base crystal as well as preparative method. The mentioned titanium base crystal has a diameter of 0.5-3.0 mum, length-diameter ratio of 5-50 and its surface reshaped. The ingredient of the compound material includes titanium base crystal, polytef and PEEK, it's shaped by hot mould pressing or pouring so it has very good strength, and abradability. Compared to the carbon fiber strengthened polyether ether-ketone of the same content, the abradability of the invention has been increased by 10 times, the frictional coefficient has been decreased by 30% and the temperature of the friction surface has been lowered by half. The invention has very good alkali resistance, so it is adaptable to be the ware and wear-resisting material in lye; it's also applicable to special conditions such as high temperature, vacuum, radiation and causticity; it can be widely used as piston link, filling, sliding piece and valve piece, the service life of the material in the invention has been greatly prolonged.

The invention discloses a wear-resistant, high-strength and light-weight poly (ether-ether-ketone) composite material. The poly (ether-ether-ketone) composite material comprises the following raw materials in parts by weight: 71-83 parts by weight of poly (ether-ether-ketone) resin, 5-10 parts by weight of suspension polytetrafluoroethylene resin, 7-12 parts by weight of carbon fiber powder and 5-7 parts by weight of aluminum oxide powder, as well as a silane coupling agent with the adding quantity of 0.8-1.5% of the weight of the aluminum oxide powder. The poly (ether-ether-ketone) composite material disclosed by the invention has the performance characteristics of wear resistance, high strength, self-lubrication, light weight, corrosion resistance and the like, is used for replacing a hard alloy and a metal framework to assemble a novel sliding bearing, effectively reduces the cost and weight of a bearing product (the weight is reduced by 30%) under the situation of meeting the requirements for service life, and can obviously reduce the power consumption and noise of a pump and achieve the purposes of saving energy and reducing consumption.

The invention relates to a preparation method of carbon fiber/polyetheretherketone composite material. The preparation method comprises the following steps of: mechanical blending the following materials: 10 to 20 percent of carbon fiber, 79 to 89 percent of polyetheretherketone and 1 to 10 percent of carbon nanotube according to weight proportion; arranging prepared particles in an air circulating furnace for drying, placing for 3h under the temperature of 150 DEG C plus or minus 3 DEG C, or placing for 2h under the temperature of 160 DEG C plus or minus 3 DEG C till the weight proportion of water is less than 0.02 percent; taking out the particle materials, arranging the particle materials in a material barrel, heating by three sections; wherein the temperature of the rear section is 350 DEG C, cooling water is used for cooling so as to prevent the material from bridging, the temperature of the middle section is 360 to 370 DEG C, the temperature of the front section is 380 to 390 DEG C, the temperature of the mold is 200 to 220 DEG C and the rotating speed of a screw is 50 to 60r/min; injection-molding and preparing fiber/polyetheretherketone composite material. The prepared composite material has good electrical conductivity and can be used for the fields of military industry, aerospace and the like.

The invention relates to a polyetheretherketone-base composite, a preparing method thereof and application thereof in friction reduction and wear resistance and belongs to the technical field of polymer composites. The polyetheretherketone-base composite, by 100% weight, 65% to 87% of polyetheretherketone, 10% to 30% of polyetherimide-coated carbon fiber, and 3% to 5% of coupler-modified titanium dioxide. In order to optimize the dispersity of micrometer chopped carbon fiber, polyetherimide which is well compatible with the polyetheretherketone and resistant to high temperature is used to coat the carbon fiber; the nano titanium dioxide is subjected to coupler inarching to reduce its agglomeration degree. Compared with fillers subjected to no treatment, the carbon fiber has the advantages such as uniform dispersity in composites and high interfacial action with matrixes. By adding the coated carbon fiber and the coupler-modified titanium dioxide, the friction and wear performance of the polyetheretherketone-base composite can be effectively improved, and the application in the friction-reducing wear-resistant environments is satisfied.

The invention belongs to the technical field of polymer composite materials and in particular relates to a composite material of a high-temperature resistant metal-fabric/resin self-lubricating bearing and a preparation method of the composite material. The composite material comprises three layers, wherein the bottom layer is a metal plate; the middle layer is a porous sintered tin bronze powder layer, and self-lubricating wear-resisting resin is impregnated in a pore; the surface layer is made of the composite material of mixed fabric and self-lubricating wear-resisting resin; the mixed weaved fabric is the composition of at least two materials of polytetrafluoroethylene fiber, carbon fiber, aramid fiber, polybenzimidazole fiber and glass fiber; and the self-lubricating wear-resisting resin is the blend of one or more of polyphenylene sulfide, polytetrafluoroethylene, polyether-ether-ketone and nylon. The composite material of the bearing has good high-temperature resistance, high loading capacity, good wear resistance and good self-lubricating property, solves the problems of high wear rate, poor wear resistance, low-temperature resistance and the like of the material of a DU bearing, and realizes the excellent frictional property and using reliability under high temperature of the material of the bearing. The composite material is applicable to the self-lubricating bearings in the fields of aeronautics and astronautics, machinery, automobiles, home appliances, office facilities and the like.

The invention discloses a novel polyether-ether-ketone (peek) bar which is designed for solving the problems of slow crystallization speed caused by too large viscosity during processing and being too difficult to be processed caused by good metal cohesiveness after the forming by processing existing in a present PEEK bar. The invention comprises the following components according to weight proportion: 55.5 parts to 100 parts of peek resin, 2 parts to 4 parts of lubricant, 0.05 part to 0.5 part of nucleating agent and 0.05 part to 43 parts of filler. The invention also discloses the preparation method and use of the bar and has the advantages of fast molding, good processing performance and wide use.

The invention belongs to the field of fiber reinforced resin based composite materials, and discloses a preparation method of a continuous carbon fiber reinforced poly(ether ether ketone) composite material and a product. The preparation method comprises the following steps: finishing modification by sulphonation on the poly(ether ether ketone) by copolymerization of sulfonated monomers; preparinga composite material prepreg tape by using solution impregnation; and preparing the continuous carbon fiber reinforced poly(ether ether ketone) composite material by a hot pressing forming process. The invention further discloses the product obtained according to the preparation method. By the preparation method, the problem that the poly(ether ether ketone) is hardly dissolved in any solvents issolved, the method for preparing the prepreg tape by solution impregnation is proposed, the problem of preparation of the continuous carbon fiber reinforced poly(ether ether ketone) composite material is solved, meanwhile, by sulfonated poly(ether ether ketone), the ability of binding of a polymer base body and a fiber interface can be improved, and therefore, the mechanical property of the fiberreinforced poly(ether ether ketone) composite material is improved.

The invention relates to a porous-grade polyether-ether-ketone self-lubricating wear-resistant composite material and a preparation method thereof, which are used for solving the problems of simple pore forming way and over single pore canal structure existing in a polyether-ether-ketone porous material. The method comprises the following steps of: adding micron and nano-pore forming agents into polyether-ether-ketone, sintering and molding to obtain a substrate; and filling lubricating oil or grease into holes inside the substrate, wherein the nano-pore forming agent is one or a mixture of certain of mesoporous titanium oxide crystal whiskers of which the specific surface area is more than or equal to 50 m<2>/g, a molecular sieve or a carbon nanotube. In the composite material, a stable lubricating oil film is formed on a friction surface in a friction process, so that stable and good lubricating functions are realized; the composite material is suitable to be applied in special environments such as high temperatures, vacuum, corrosion, radiation and the like; and friction can be reduced remarkably, and the service life of a device is prolonged greatly.

The invention relates to an aromatic block polymer, and a preparation method and application thereof as a compatibilizer. Amino-terminated polyetheretherketone oligomer and acid-anhydride-terminated polyimide oligomer are subjected to nucleophilic polycondensation reaction in an organic solvent to obtain the polyetheretherketone-polyimide block polymer. The polymerization degree of the two oligomers can be regulated to prepare the block polymer, so that the number-average molecular weight of the prepared polyetheretherketone block and polyimide block is 1000-6000, and the number-average molecular weight of the block polymer is 20000-40000. When being adding into a polyetheretherketone-thermoplastic polyimide blend system as a compatibilizer, the block polymer is beneficial to improving the compatibility of the blend system, thereby preparing the high-polymer alloy material with excellent comprehensive properties, such as mechanical properties, working properties, thermal properties and the like.

The invention discloses an antistatic high-temperature-resistant polyether-ether-ketone coating and a preparation method of the antistatic high-temperature-resistant coating, and belongs to the technical field of paint. The mass ratio of the polyether-ether-ketone resin to a carbon nano tube in the coating disclosed by the invention is (98.5-99.5) to (1.5-0.5). The preparation method of the coating comprises the steps of grinding and drying the polyether-ether-ketone resin; mixing with the carbon nano tube to obtain mixed paint, and spraying the mixed paint on a sanded metal plate by an electrostatic spraying technology; and curing at room temperature after melting at high temperature to obtain the antistatic high-temperature-resistant coating. The alternating current conductivity of the antistatic high-temperature-resistant coating disclosed by the invention under the frequency of 10<3>Hz is 8.09*10<-9>s/m to 7.10*10(-4)s/m, and has the antistatic function. The preparation method of the antistatic high-temperature-resistant coating disclosed by the invention is simple and convenient; the conductive padding is evenly dispersed in resin; the conductivity of the coating is improved; and the antistatic high-temperature-resistant coating can be applied to the industries such as electronics, electric appliances, aviation and petrochemical engineering.

The invention discloses organic synthetic plugging granules for well drilling, and a preparation method and application thereof, belonging to the field of organic synthetic granular plugging agents in the technical field of well drilling. The plugging granules are prepared by blending one or more of calcium carbonate whisker, magnesium borate whisker and calcium sulfate whisker with polyetheretherketone and polyetherimide. The preparation method comprises the following steps: adding one or more of calcium carbonate whisker, magnesium borate whisker and calcium sulfate, polyetheretherketone and polyetherimide into a high-speed mixer, mixing at 380 DEG C at the shear velocity of 2.5/s for 10-30 minutes, extruding at 300 DEG C, cooling, and granulating. The organic synthetic plugging granules can be used as plugging granules and matched with plugging fibers and plugging flexible fragments for bridging plugging. The method solves the problems of poor dispersity, improper density, high water absorptivity, high degradation tendency, high brittleness, high breaking tendency, high sedimentation tendency and the like, and enhances the compression resistance and temperature resistance of the plugging bridging granules.

The invention relates to a method for preparing a polyether-ether-ketone (PEEK) pipe. The method comprises the following steps: coldly pressing and sintering PEEK or modified PEEK as a main raw material in a die; carrying out hot press and demolding for a period of time; and finally carrying out hot processing on the pipe in an oven. The method is simple, is easy to control the production condition and has high crystallinity and size stability of a manufactured product. The invention is mainly used for processing a bearing, a gasket, a seal element, an electroplating ring, a piston ring, a check ring, a support ring, a pump body or a valve part.

The invention discloses a polyether-ether-ketone composite material containing fluorapatite and titanium dioxide and a preparation method thereof, belonging to the technical field of biomedical composite materials. The composite material is a bone restoration material prepared from a polyether-ether-ketone composite material with enhanced fluorapatite and titanium dioxide and is prepared by blending fluorapatite, titanium dioxide and polyether-ether-ketone in a fusion way, wherein the fluorapatite and the titanium dioxide are respectively 10-30 percent of the total weight of the composite material, and the balance is the components of the polyether-ether-ketone. The composite material prepared from the fluorapatite, the titanium dioxide and the polyether-ether-ketone in the invention realizes good strength and toughness and consistent elastic modulus with a human bone, has bone-substitute material with bioactivity, and can overcome the defect that the traditional metal and ceramic bone-substitute material has the mechanical property which is not matched with the human bone.