76 results about "Polymer alloy" patented technology

To provide a polymer alloy that enables production of a molded article with superior mechanical characteristics.SOLUTION: A polymer alloy according to the present invention comprises a first liquid crystal polymer, a first non-liquid crystal polymer, and a compatibilizer that is a reaction product of a second liquid crystal polymer having a reactive group at its terminal and a second non-liquid crystal polymer having a reactive group capable of reacting with the reactive group at the terminal of the second liquid crystal polymer.SELECTED DRAWING: None

The present invention relates to the technical field of polymer alloy materials, and particularly relates to a composite material of low-warpage PPO and PA66 and a preparation method thereof. The composite material of low-warpage PPO and PA66 uses polyphenylene ether resin and PA66 as the main materials, and adds polystyrene, compatibilizer, toughening agent, carbon nanotubes, chain extender and other auxiliaries to act synergistically. On the basis of ensuring the antistatic effect of the overall material, the electrophoretic painting effect of the overall composite material is effectively improved, the surface performance of the material is improved, and the low-temperature toughness and warpage deformation resistance of the material are enhanced; among them, the combined action of the special chain extender and polystyrene can maintain the overall physical properties while being more beneficial to the electrophoretic painting effect. In addition, the combination of PPO and PA66 can better maintain the balance during electrophoresis at 170 °C to avoid warpage deformation; the special toughening agent added can enable the material to still maintain good toughness at low temperatures.

The application belongs to the field of high dielectric constant (ε r ), low dielectric loss (tan delta) composite dielectric material, and particularly relates to a preparation method of a modified polyether sulfone / polyether imide polymer alloy. g Polymer polyether imide is blended, the mixture is added into DMAc at a solid content of 15%-20%, is stirred and dissolved at 80 DEG C, then a thin film is prepared on a glass plate by using a scraping coating method, finally the glass plate is transferred to a vacuum oven, is kept at 55 DEG C overnight, is kept at 100 DEG C for 3-5 hours, and is cured at 180 DEG C for 3-5 hours, thereby a blended film is prepared, wherein the mass fraction of the modified polyether sulfone in the mixture is 1wt%-30wt%. The modified polyaryl ether sulfone polymer segment with a side chain branched large dipole moment polar group is used as an organic filler, a small amount of addition can greatly reduce the dielectric loss, the operation is simple, the spectrum is good, and the influence on T g is very small, and the dispersion and interface problems of inorganic fillers are avoided.

This invention relates to the field of polymer technology and discloses a polylactic acid / polycarbonate polymer alloy and a method for forming the same. The polylactic acid / polycarbonate polymer alloy is disclosed to include polylactic acid / glycidyl methacrylate, acrylate, an initiator, polylactic acid, and polycarbonate. The material characteristics of the polylactic acid / polycarbonate polymer alloy of this invention will resemble those of polycarbonate, which possesses high toughness, heat resistance, and durability.

A stabilizer sleeve is disclosed for use with cardiac implantable electronic device leads. The sleeve comprises a tubular body sized to receive the lead and shaped to bias the lead toward a desired anatomical location, thereby reducing migration, dislodgement, and interference with cardiac structures. The sleeve may be introduced with the lead as a unitary assembly or added after lead placement. Various embodiments include a slitted body for expansion, radiopaque markers for visualization, detachable nose-cone tips for guidewire tracking, and antimicrobial coatings. The sleeve may be formed of polymers, alloys, or composite materials, and may include features such as texturing or anchoring projections for tissue engagement. Applications include positioning within a tricuspid valve commissure to minimize regurgitation and stabilizing left ventricular leads within branches of the coronary sinus. The device and methods described provide improved long-term stability and performance of implanted cardiac leads.

The application discloses a light reflection and enhancement film and an enhanced photovoltaic module with the same, the light reflection and enhancement film comprises a buffer layer and a substrate layer, the preparation raw materials of the buffer layer comprise an ethylene polymer, a mesoporous composite material, a filler and an additive, and the preparation raw materials of the substrate layer comprise a propylene polymer alloy, the mesoporous composite material, the filler and the additive. The light reflection and enhancement film and the enhanced photovoltaic module with the same have the advantages that the mesoporous material is compounded with the nanometer material to form the mesoporous composite material, and then the mesoporous composite material is used for preparing the buffer layer and the substrate layer, so that the reflectivity of the ultraviolet region of 330-380 nm, the adhesion between the buffer layer and the battery and the adhesion between the substrate layer and the adhesive film are improved, the light reflection and enhancement film is applied to the gap position between the battery pieces on the photovoltaic battery, the battery hidden crack and the fragments can be avoided, and the module power can be greatly improved compared with the application on the glass.

To provide a passenger conveyor capable of more stable operation. [Solution] The passenger conveyor comprises a handrail 7, a drive roller, and a handrail guide 18. The handrail 7 includes a canvas 14 and a main body 12 that is an extrusion molded body of thermoplastic elastomer and has the canvas 14 as a lining. The drive roller contacts the canvas 14 to move the handrail 7 in a circular motion. The handrail guide 18 contacts the canvas 14 to guide the movement of the handrail 7 in the longitudinal direction. The handrail guide 18 is made of a polymer alloy of polyethylene and polyacetal. The polymer alloy does not contain an adhesion inhibitor as an additive.

The invention discloses a polymer alloy plastic bridge and a preparation method thereof, and relates to the technical field of cable bridges, the polymer alloy plastic bridge comprises a main groove body, the main groove body is integrally formed by a bottom and two side plates, the bottom and the two side plates of the main groove body are each of a three-layer composite structure, the top of the main groove body is detachably connected with a cover plate through a buckle assembly, and the cover plate is detachably connected with the bottom of the main groove body. The three-layer composite structure sequentially comprises an alloy plastic base plate, a honeycomb-shaped reinforcing rib layer and a stainless steel plate from outside to inside. Through the design of the three-layer composite structure, the performance is synergistically enhanced, compared with a traditional plastic bridge, the weight is reduced by 30% or above, the bending strength is improved by 50%, the three-layer structure is firmly combined through the co-extrusion-mold pressing-bonding technology, the limitation of a bridge made of a single material on strength, weather resistance or weight is solved, and the service life of the bridge is prolonged. The structure has high specific strength and specific stiffness, the weight of the bridge can be effectively reduced while the overall strength of the bridge is guaranteed, installation and transportation are convenient, and the construction cost is reduced.

The invention relates to a preparation method of a degradable toughened polyester elastomer and a blend polymer alloy. The preparation method comprises the following steps: carrying out melt esterification and polycondensation on a hydroxyl-terminated PGA oligomer and binary acid to prepare the degradable toughened polyester elastomer; the molecular weight of the hydroxyl-terminated PGA oligomer is 400 to 7000 g / mol; the binary acid is aliphatic linear binary acid or flexible alicyclic diacid with the carbon atom number of 2-12; and drying PGA and the degradable toughened polyester elastomer, uniformly mixing, and carrying out blending extrusion in a twin-screw extruder to obtain the PGA / PGA-based elastomer blended polymer alloy. The degradable toughening polyester elastomer prepared by the method disclosed by the invention takes balance between tensile strength and elongation at break into account, and solves the problem that the degradation property and mechanical property of the conventional polyglycolide copolyester cannot be achieved at the same time; the blended polymer alloy is prepared by using the PGA-based elastomer to modify the PGA, the two-phase compatibility is good, the process is simple, and meanwhile, the high tensile strength and toughness are achieved.

The invention discloses a plasticizable preparation method of a photovoltaic cross-linked adhesive film recycled material and a plasticizable recycled product, aiming at the defect that the existing recycled cross-linked photovoltaic adhesive film material does not have thermoplastic melt processing performance, the preparation method comprises the following steps: firstly, mixing polypropylene wax with cross-linked X-EVA / X-POE powder, and then carrying out heat treatment; the preparation method comprises the following steps: adding a crosslinking agent into a rubber material to improve the compatibility of the rubber material and other raw materials and reduce the thermal strength of rubber film powder, and then breaking a molecular chain of a crosslinking structure under the action of an initiator by utilizing the high-temperature shearing effect of an extruder, so as to realize the degradation and plasticization preparation of a crosslinking material, and re-endowing a recycled material (R-EVA / R-POE) with the characteristic of melt processability. By adjusting and optimizing the used formula, a blending product with better melt flowing property can be screened out, and the blending product can be used as a compatibilizer or a flexibilizer to be applied to polymer alloys and polymer inorganic filling composite materials to generate new economic values.

This invention provides a polymer alloy, its preparation method, and its applications. By weight, the polymer alloy comprises 40-95 parts nylon, 10-40 parts acrylonitrile-styrene-acrylate copolymer resin, 2-15 parts compatibilizer, and 1-8 parts toughening agent; the toughening agent comprises a combination of epoxy resin toughening agent and barium sulfate. By adding a compatibilizer, the compatibility between nylon and acrylonitrile-styrene-acrylate copolymer resin is improved. Simultaneously, by selecting a specific combination of toughening agents, the polymer alloy exhibits excellent mechanical properties and high notched impact strength.

To provide an alloy resin excellent in the balance between fluidity in melting and heat resistance in curing.SOLUTION: A polymer alloy comprising a polyvinyl chloride (A), a (meth) acrylic resin (B), and a stabilizing agent (C), wherein the stabilizing agent (C) comprises a liquid organotin compound (c1) that is liquid at 20 °C and a powdery organotin compound (c2) that is powdery at 20 °C. It is preferable that the melt flow rate (210 °C., load: 98N) of the alloy resins is 20g / 10 minutes or more, and the deflection temperature under load of the alloy resins is 80 °C. or more.SELECTED DRAWING: None

An artificial feather for a shuttlecock, which is provided with a feather shaft section made of a polymer alloy (B) and reinforcing fibers (A) containing at least carbon fibers (A1), and a feather wing section supported by the feather shaft section, and which is implanted in a circular ring shape in a base section of the shuttlecock, the artificial feather for shuttlecocks contains 1-50 parts by weight of reinforcing fibers (A) containing at least carbon fibers and 50-99 parts by weight of a polymer alloy (B) per 100 parts by weight of the total of the reinforcing fibers (A) and the polymer alloy (B), and the weight average fiber length (LwA1) of the carbon fibers (A1) is 0.5-7.0 mm. The artificial shuttlecock provided by the invention is excellent in impact strength and bending elastic modulus during water absorption.

The invention belongs to the field of high polymer materials, particularly relates to a novel high polymer alloy material and a master batch prepared from the novel high polymer alloy material, and further relates to application of the high polymer alloy material and the master batch. The polymer alloy material is a PETX / PBAT blended composition, and PETX is copolyester of ethylene glycol terephthalate and glycolic acid and / or lactic acid. According to the polymer alloy material and the master batch, excellent balance of rigidity and toughness can be achieved, the raw material cost and the process complexity are reduced, the soil moisture preservation performance of the material is improved, and meanwhile the application direction of PET plastic recycling is effectively expanded.

The application provides a polymer alloy and a preparation method and application thereof, the polymer alloy comprises 60-80 parts of polycarbonate, 8-20 parts of acrylonitrile-butadiene-styrene copolymer, 5-12 parts of a phosphorus flame retardant, 1-6 parts of an anti-noise auxiliary agent and 0.8-5 parts of a filler in terms of weight parts; the phosphorus flame retardant comprises a phosphazene flame retardant; the filler comprises talcum powder; and the anti-noise auxiliary agent comprises a maleic anhydride grafted styrene-ethylene-butadiene-styrene copolymer.In the application, the specific kind of phosphorus flame retardant, anti-noise auxiliary agent and filler are compounded, which is beneficial to improving the wet heat aging resistance of the PC / ABS polymer alloy, reducing the smoke density of the PC / ABS polymer alloy and enabling the polymer alloy to have the anti-noise effect.

The present invention provides a means for increasing the fluidity of a molten resin by using a liquid.　The fluidity of the molten resin can be increased by adding the liquid to the molten resin. The liquid in the molten resin vaporizes at the temperature of a heating cylinder or the temperature of the molten resin, becomes dissolved in the molten resin, and is integrated between molecular chains of the resin to increase the fluidity of the molten resin. The fluidity of the molten resin increases also when undissolved gas is finely dispersed in the molten resin.　The present invention provides a means for producing a foam molded article which has a smooth and beautiful surface and in which no / less reduction in physical properties is exhibited during foam-molding of a resin including an ester structure. The means is effective for obtaining a foam molded article of a polymer alloy made of a PC-based resin and a PC having a high expansion ratio.

The invention provides a three-layer steel bridge deck pavement structure and a pavement method, and relates to the technical field of steel bridge decks, the three-layer steel bridge deck pavement structure comprises a polymer alloy material layer, a UHPC layer and an EA layer which are sequentially arranged on a steel bridge deck from bottom to top, the polymer alloy material layer is prepared from the following components in parts by weight: 10 to 100 parts of polyarylene sulfide, 0.1 to 10 parts of epoxy resin, 5 to 20 parts of polyphenyl ether and 20 to 50 parts of acrylonitrile-butadiene-styrene copolymer. Compared with the prior art, the pavement structure has the advantages that the effects of all the functional layers are fully exerted, so that enough binding power can be formed between the pavement structure and the bridge deck slab, and the deformation resistance and the shearing resistance are high; meanwhile, all the layers have good waterproof performance, water seepage is effectively prevented, and the stability of the paving structure is guaranteed.

The present invention provides a wiring harness and a resin composition. Even when the insulator materials of the cable group and the sheath are different, the wiring harness suppresses water from infiltrating from the branch portion by using a resin molded article that covers the branch portion of the cable group. There is provided a wiring harness (1) including: a multi-core cable (2) having an ABS sensor cable (21) with an outermost layer made of thermoplastic polyurethane and an electric parking brake cable (22) with an outermost layer made of polyolefin, and a sheath (23) made of thermoplastic polyurethane provided around them; and a resin molded article (3) that covers the sheath (23), the ABS sensor cable (21), and the electric parking brake cable (22) at a cable branch portion (4), the resin molded article (3) being composed of a polymer alloy of a first polymer containing at least one of a polyamide-based polymer, a polyester-based polymer, and thermoplastic polyurethane and a second polymer containing polyolefin.

The invention discloses a high-temperature-resistant nylon / liquid crystal polymer alloy for a high-vibration thermal cycle environment and a preparation method of the high-temperature-resistant nylon / liquid crystal polymer alloy in the field of high polymer materials. The high-temperature-resistant nylon / liquid crystal polymer alloy is prepared from the following raw materials: high-temperature nylon, wholly aromatic polyester or liquid crystal polymer, a novel bifunctional reactive compatilizer, chopped glass fibers, core-shell rubber particles and an antioxidant. The preparation method adopts multi-stage melt blending extrusion: in the first stage, adding the high-temperature nylon, the compatilizer and the antioxidant at a specific temperature, and staying for a certain time; raising the temperature to be close to the melting point of the liquid crystal polymer in the second stage, adding the liquid crystal polymer, the chopped glass fiber and the core-shell rubber particles through side feeding, and staying for a certain time; and carrying out third-stage cooling, adding silicone master batches, carrying out vacuum exhaust, and carrying out extrusion granulation. The granules can be used for injection molding or compression molding after being dried, and are suitable for high-vibration and thermal cycle environments.

The invention discloses a polymer alloy and a preparation method and application thereof. The preparation method of the polymer alloy comprises the following steps: S1, premixing polyethylene resin, polypropylene resin and a compatibilizer to obtain a premix; and S2, adding the premix into a differential asymmetric twin-screw extruder, melting, mixing, extruding and pelletizing to obtain the composite material. According to the invention, the polyethylene resin and the polypropylene resin are blended, and melt extrusion is carried out by adopting a differential asymmetric twin-screw machine, so that the obtained polymer alloy has excellent mechanical properties. When the polymer alloy is used for preparing the cast film, the optical performance of the cast film can be greatly improved.

To provide a PC / ABS resin having excellent impact resistance with improved anisotropy, and an automotive interior component formed therefrom.SOLUTION: A PC / ABS resin of the present invention, which is a polymer alloy of polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS), is configured such that the PC has a viscosity-average molecular weight of 27,500 or more, the ABS has a melt flow rate of 45 g / 10 min or less as measured according to JIS K 7210 (220°C, 10 kg load), and the PC content is 65 mass% or more relative to the total mass of the PC and the ABS. An automotive interior component 10 is formed from the PC / ABS resin.SELECTED DRAWING: Figure 2

The invention relates to the field of modified polymer alloy materials, in particular to a polyaryletherketone alloy material for wires and cables and a preparation method of the polyaryletherketone alloy material. The polyaryletherketone alloy material specifically comprises the following components in parts by weight: 19-42 parts of polyaryletherketone matrix resin; the content of the low-melting-point polyaryletherketone matrix resin is 20-40 parts; the content of the partially crosslinked polyaryletherketone matrix resin is 17-60 parts, and the balance is the auxiliary agent. The polyaryletherketone alloy material combination has lower processing temperature, wider processing window and more excellent processing performance and mechanical performance; therefore, the electric wire and cable taking the polyaryletherketone alloy material as the matrix resin is suitable for special electric wires and cables such as aviation and aerospace sensors, high-temperature engine sensors, high-temperature metallurgical sensors, medical sensors, high-temperature nuclear power sensors, oil field sensors, high-temperature chemical sensors and high-temperature energy exploration sensors. Electromagnetic wires for motors, transformers and the like are especially suitable for high-voltage motors; coating the optical fiber; nuclear power and other special fields.

The application relates to the technical field of organic functional material preparation, and provides a high piezoelectricity low modulus polymer alloy and a preparation method, the preparation method comprises the following steps: S1, dissolving dimers P(VDF-TrFE) and trimers P(VDF-TrFE-CFE) with different proportions into a polar solvent to form a mixed solution; S2, forming a thin film of the mixed solution on a substrate, crystallizing and annealing to obtain a piezoelectric polymer alloy; and S3, polarizing the piezoelectric polymer alloy by using a strong electric field, thereby obtaining the high piezoelectricity low modulus polymer alloy. The two organic polymer molecules are compatible at the molecular level, the crystallization temperature and the annealing temperature are controlled, the molecular chain conformation and the phase structure are regulated by using components and a polarization electric field, the morphotropic phase boundary is induced, the high piezoelectricity and the low Young's modulus of the polymer alloy are realized, and the foundation is laid for constructing high-performance piezoelectric devices. The material system used by the application is simple and controllable, the manufacturing cost is low, and the application has great commercial value and practical significance.

To improve the absorption rate of a plasticizer into the voids between the molecular chains of polyvinyl chloride and to lower the absorption start temperature of the plasticizer into the voids between the molecular chains of polyvinyl chloride.SOLUTION: The present invention provides a sealant containing a plastisol composition, wherein the plastisol composition contains a resin composition and a plasticizer A, wherein the resin composition is a polymer alloy containing polyvinyl chloride, a modifying resin, and a plasticizer B, and wherein the plasticizer B is the same type of plasticizer as the plasticizer A, or a different type of plasticizer from the plasticizer A.SELECTED DRAWING: None

The invention discloses a high-flowability and high-transparency PC / copolyester alloy material as well as a preparation method and application thereof, and relates to the technical field of polymer alloy materials. The alloy material is prepared by blending polycarbonate serving as a base material with specific modified copolyester. Meanwhile, a functional group active monomer is added in the final polymerization stage to end the terminal carboxyl group of the copolyester, so that the low-terminal carboxyl group and low-molecular weight copolyester resin is obtained, and the content of the terminal carboxyl group is lower than 20 mol / t. The modified copolyester and part of chain segments of PC are subjected to a block reaction under high-temperature melting processing, a block-level polymer compatible system is formed in situ, and the problems that in the prior art, blending compatibility of PC and polyester is poor, and fluidity, optical performance, mechanical performance and chemical cracking resistance are difficult to consider at the same time are solved. Good dispersion of the low-molecular-weight copolyester in a high-viscosity PC system is realized, and the formed alloy material has good melt fluidity, optical transparency, proper mechanical properties and enhanced chemical cracking resistance.

The application provides a lithium cohesive alloy fuel, a preparation method and application thereof, and belongs to the field of metal fuels, and comprises aluminum, silicon and lithium, wherein the aluminum is used as a base body, the mass of the silicon accounts for 0.5-20% of the total mass of the metal fuel, the mass of the lithium accounts for 0.5-10% of the total mass of the metal fuel, and the silicon and the lithium are combined with the aluminum and exist in the form of AlSiLi intermetallic compounds in the elemental Al base body. Preferably, the mass of the silicon accounts for 10% of the total mass of the metal fuel, and the mass of the lithium accounts for 5% of the total mass of the metal fuel. The metal fuel is used for combustion energy release in the field of aerospace. The aluminum, the silicon and the lithium are smelted into an alloy base material by using an ultrahigh-temperature vacuum suspension smelting method, and then the alloy base material is prepared into spherical particles by using a high-temperature gas atomization powder preparation method. The application solves the problems that the aluminum-lithium alloy powder in the existing alloy fuel is easy to oxidize and difficult to store for a long time.

The invention discloses a dynamic radiation curing polymer alloy and a preparation method thereof, and belongs to the field of high polymer materials. The polymer alloy is composed of thermoplastic resin and a radiation-curable composition, and the key point in the preparation process is that the radiation-curable composition and the thermoplastic resin are mixed, and then the mixture is irradiated while the mixture is continuously mixed, so that the radiation-curable polymer alloy is obtained. Enabling the radiation-curable polymer in the mixture to be subjected to polymerization and cross-linking reaction under a dynamic condition, and forming a cross-linked dispersed phase in a continuous phase of the thermoplastic resin, so as to prepare the dynamic radiation-curable polymer alloy. The method disclosed by the invention can be used for preparing thermoplastic elastomers or toughened thermoplastic plastics.

The invention discloses a power module, an inverter and an electromechanical device. The power module includes: a substrate having a circuit layer, the substrate having a first side and a second side opposite to each other, and at least one intermediate layer located between the first side and the second side and including a graphene polymer alloy material; the semiconductor device is arranged on the first side and is electrically connected with the circuit layer; and a heat sink disposed on the second side to form a heat transfer path from the semiconductor device to the heat sink via the circuit layer and the intermediate layer. The heat resistance of the power module can be obviously reduced, the heat dissipation capability of the system is enhanced, and the working stability is improved. (Figure 1)

The invention discloses a Bio-ABS (Acrylonitrile Butadiene Styrene) / Bio-PE (Polyethylene) alloy material and a preparation method thereof, and belongs to the technical field of polymer alloy materials. The alloy material comprises the following components in percentage by weight: 40%-65% of Bio-ABS (Acrylonitrile Butadiene Styrene) resin, 30%-55% of Bio-PE (Polyethylene) resin and 3%-15% of a polyethylene grafted polystyrene compatilizer. A PE main chain of the polyethylene grafted polystyrene compatilizer is activated and modified to form active free radical sites, and reaction sites are provided for grafting of a PS branch chain; the PS branch chain is formed by in-situ graft polymerization of a styrene monomer on an activated PE main chain, comprises a repeated structural unit which is the same as that of a styrene chain segment in the Bio-ABS, and can be stably combined with the Bio-ABS according to the principle of'similar phase fusion '. The polyethylene grafted polystyrene compatilizer introduced in the invention successfully solves the problem of compatibility in the alloying process of high-proportion bio-based polyethylene and Bio-ABS, and the obtained material has the characteristics of high bio-based content, low carbon and environmental protection and excellent mechanical properties, and has wide industrial application prospects.