1134 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 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.

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 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 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 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.