720 results about "Thermoplastic elastomer" patented technology

The invention discloses a high-strength and high-resilience TPE (thermoplastic elastomer) and a preparation method thereof in the technical field of high polymer materials, and the elastomer is prepared by taking a hydrogenated styrene block copolymer as a matrix and matching with a polyolefin rigid phase, plasticizing oil and a specific additive. The method is characterized in that two self-made reaction type modifiers are introduced, wherein one self-made reaction type modifier is a core-shell nano reinforcing agent containing an epoxy functional group and polyhedral oligomeric siloxane, and the other self-made reaction type modifier is a furan maleimide bifunctional dynamic cross-linking agent. The nano reinforcing agent is prepared through silane hydrolysis and amination reaction, and can react with a matrix for grafting, so that the strength and creep resistance of the material are remarkably improved; the dynamic cross-linking agent is synthesized through step-by-step isocyanate addition reaction, a cross-linked network can be reversibly formed in the processing process, and the material is endowed with extremely high rebound resilience and low permanent deformation. The obtained product has high strength, high resilience and excellent processability, and is especially suitable for high-end fitness equipment.

The embodiment of the invention discloses a preparation method of a solid electrolyte membrane and the solid electrolyte membrane. The preparation method of the solid electrolyte membrane comprises the following steps: providing a composite fiber solution, a thermoplastic elastomer solution, a solid electrolyte matrix and a positive electrode material; performing coaxial electrostatic spinning treatment on the composite fiber solution and the thermoplastic elastomer solution to obtain a fiber adhesive; carrying out ball milling treatment on the fiber adhesive, the solid electrolyte matrix and the positive electrode material to obtain a fibration mixture; and carrying out hot rolling treatment on the fiberized mixture to obtain the solid electrolyte membrane. According to the preparation method provided by the invention, the fiber adhesive prepared from the composite fiber and the thermoplastic elastomer, the solid electrolyte matrix and the positive electrode material are subjected to ball milling and hot rolling treatment, so that the interface contact between the cathode and the electrolyte is optimized, the interface impedance is reduced, the cyclic stress is relieved, and the generation of interface cracks is inhibited; the prepared solid electrolyte membrane is high in ionic conductivity and stable in structure.

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 an intra-spinal anesthesia catheter device with a temperature compensation function, and relates to the technical field of medical instruments. The intra-spinal anesthesia catheter device comprises an anesthesia catheter body, the anesthesia catheter body comprises a thermoplastic elastomer and a shape memory polymer, and the thermoplastic elastomer wraps the outer side of the shape memory polymer. The intraspinal anesthesia catheter has the beneficial effects that through combination of an innovative intelligent material system and an active closed-loop control technology, the traditional contradiction that the rigid requirement and the soft safety of the catheter cannot be achieved at the same time in intraspinal anesthesia is fundamentally solved. The method has the primary advantage that the dynamic programmable adjustment of the mechanical property of the catheter is realized.

The invention relates to the technical field of cable accessories, in particular to a high-strength cable accessory and a preparation method thereof. The high-strength cable accessory comprises a semiconductor layer and an insulating layer, and the semiconductor layer is prepared from, by weight, 10-15 parts of low-density polyethylene, 75-85 parts of polyolefin thermoplastic elastomer, 8-12 parts of ethylene propylene diene monomer, 25-40 parts of silane coupling agent grafted graphene nanosheets and 4-6 parts of maleic anhydride grafted modified ethylene-octylene copolymer. The composition comprises the following components in parts by weight: 1.0-2.0 parts of zinc stearate, 1.0-2.0 parts of an antioxidant, 2.0-3.5 parts of trimethylolpropane trimethacrylate and 1.5-2.2 parts of dicumyl peroxide. According to the high-strength cable accessory provided by the invention, the overall mechanical property, thermal stability and conductivity of the composite material and the mechanical strength, breakdown field strength and insulating property of the insulating layer are improved.

A thermoplastic elastomer-based multifilament yarn and a method of making a thermoplastic elastomer-based multifilament yarn are disclosed. The multifilament yarn includes a first filament at least partially adhered to a second filament. The first filament and the second filament are each formed from a thermoplastic elastomer composition comprising a thermoplastic elastomer exhibiting a flexural modulus of about 300 MPa or less as determined at a temperature of about 23 DEG C according to ISO 178: 2019. The yarn has a linear density of from about 1 to about 500 deniers per filament, and exhibits an elongation at break of about 300% or greater as determined at a temperature of about 23 DEG C according to ASTM D2653-07 (2018).

The utility model relates to the technical field of interior lamp frames, in particular to an automobile LED lamp interior lamp frame which comprises a thermoplastic elastic plate, the lower end of the thermoplastic elastic plate is coated with a super glue layer, the upper end of the thermoplastic elastic plate is fixedly connected with a lamp installation facilitating structure, and the upper end of the lamp installation facilitating structure is provided with a lamp frame decoration structure. The lamp structure convenient to install comprises a lamp holder, the lamp holder is fixedly connected with the upper end of a thermoplastic elastic plate, and a magnetic suction plate is fixedly connected to the inner lower wall of the lamp holder. According to the interior lamp frame of the automobile LED lamp, convenient and fast installation is achieved through the thermoplastic elastic plate and the super glue layer, stable connection of the lamp shell is guaranteed through the magnetic attraction structure and the clamping plate assembly, meanwhile, the aluminum alloy lamp frame and the colored lamp beads are both decorative and functional, and the problems that a traditional lamp frame is tedious in installation, poor in stability and the like are effectively solved; therefore, the practicability and the attractiveness of the in-vehicle lighting system are improved.

The present application provides a composite film and its packaging structure and method. The composite film includes a first thermoplastic elastomer film layer and a second thermoplastic elastomer film layer, wherein the first thermoplastic elastomer film layer includes a first styrenic block copolymer. The second thermoplastic elastomer film layer is disposed on the first thermoplastic elastomer film layer, wherein the second thermoplastic elastomer film layer includes a second styrenic block copolymer, diffusion particles dispersed in the second thermoplastic elastomer film layer, and a surface microstructure provided on the surface of the second thermoplastic elastomer film layer.

This utility model discloses a mixing device for the preparation of thermoplastic elastomers, including a fixed frame. A fixed block is rotatably mounted on the top of one side of the fixed frame via a rotating shaft on a movable seat. An auxiliary disk is fixed on one side of the fixed block. A reinforcing shaft is rotatably mounted at the center of one side of the auxiliary disk. A mixing tank is fixed at one end of the reinforcing shaft. An auxiliary mixing component is provided on the fixed frame and the auxiliary disk. By setting the auxiliary mixing component and cooperating with a first motor and a stirring shaft, this utility model enables the mixing tank, which has an overall inclined structure, to automatically stir internally while revolving and simultaneously reciprocating in the back-and-forth direction. At this time, multiple auxiliary mixing methods are used to ensure that the various raw materials at the bottom and top of the mixing tank are fully in contact and mixed, thereby quickly and fully mixing the various raw materials for preparing thermoplastic elastomers and avoiding mixing dead zones.

The application belongs to the technical field of polymer materials, and discloses a modified asphalt for durable thin-layer pavement, a preparation method, application and wearing layer thereof; the modified asphalt comprises the following components in mass fraction: 100 parts of asphalt, 10-20 parts of thermoplastic elastomer, 2-5 parts of tackifier and an additive; the tackifier is phthalonitrile resin; the thermoplastic elastomer contains not less than 90 wt% of SBS; the modified asphalt is synergistically modified by the tackifier and the thermoplastic elastomer, so that the obtained modified asphalt has excellent high-temperature performance, low-temperature performance and aging resistance, and is particularly suitable for durable thin-layer pavement; and the wearing layer prepared by the modified asphalt has excellent fatigue durability.

The application discloses a long-acting anti-aging modified asphalt based on bionic inspiration and a preparation and application thereof. The long-acting anti-aging modified asphalt based on bionic inspiration comprises the following components in mass fractions: 2-4 parts of zinc diethyl dithiocarbamate, 0.5-1.5 parts of a bionic polymer-benzene and propylene copolymer grafted dopamine, 4 parts of a thermoplastic elastomer SBS and 400 parts of a base asphalt. Through the synergistic effect of the bionic polymer and the sulfur anti-aging agent, a double anti-aging protection system is constructed. After short-term thermal oxygen aging, the modified asphalt can still maintain excellent high-temperature stability and low-temperature crack resistance. After long-term pressure aging, the performance attenuation amplitude of the modified asphalt is significantly reduced compared with that of a traditional SBS modified asphalt, and the long-acting anti-aging characteristics are exhibited.

The utility model discloses thermoplastic elastomer surface treatment equipment which comprises a cleaning box, a mounting plate is fixedly connected to the interior of the cleaning box, and a first transmission gear is rotationally connected to the exterior of the mounting plate. According to the thermoplastic elastomer surface treatment equipment, a motor is started and drives a first transmission gear to rotate, the first transmission gear drives a swing plate to swing up and down through a sliding rod and a sliding groove, the swing plate drives a stirring rod to integrally move up and down through a fixing shaft and a shell, and meanwhile the first transmission gear drives a second transmission gear to rotate; a second transmission gear drives a shell to rotate back and forth on a fixed shaft through a connecting plate and a fixed rod, so that the shell drives a stirring rod to integrally swing back and forth, and when the shell rotates back and forth, the stirring rod is driven to rotate back and forth under the action of a first bevel gear and a second bevel gear, so that the stirring rod moves in more modes, and the stirring effect is improved. The stirring effect is improved, and the thermoplastic elastomer can be cleaned more thoroughly.

This utility model discloses a highly flexible, electromagnetic interference-resistant cable for robots, comprising a double-layer conductor bundle with a Kevlar fiber rope at its center. The space between the inner and outer conductor bundles, and between the inner and outer conductor bundles and the Kevlar fiber rope, is filled with thermoplastic elastomer and foamed silicone. The conductor bundles are spirally twisted in opposite directions at different pitches. The cable is surrounded by braided aramid fibers, an insulation layer, an inner shielding layer, an outer shielding layer, and a sheath layer. The sheath has semi-circular ribs and embedded elastic polyurethane strips. The thermoplastic elastomer is a polyurethane-based material, the foamed silicone is phenyl silicone rubber, the insulation layer is nano-silica modified methyl vinyl silicone rubber, the inner shielding layer is copper foil wrapped with a polytetrafluoroethylene self-lubricating coating, the outer shielding layer is tin-plated copper wire braid, and the sheath layer is a blend of polyurethane and silicone rubber coated with a nano-ceramic coating. This cable exhibits a long dynamic bending life under extreme environments, improves high-frequency shielding effectiveness, and is suitable for high-frequency movements of industrial robots and complex electromagnetic environments.

Thermosensitive material for an overheat detection element, detection element, associated electrical equipment and electrical cabinet. This thermosensitive material is a hot injectable and electrically insulating material, the thermosensitive material including a polymer matrix, made of a thermoplastic polymer material or thermoplastic elastomer, a plasticizer, having a molar mass (M), and a charge in the form of particles, in particular carbon black.The molar mass (M) of the plasticizer is chosen based on a predetermined first temperature threshold (Ti), so that the heat-sensitive material is configured to release volatile species from the heated plasticizer and charge particles carried by the plasticizer when the material is subjected to a temperature above the first temperature threshold (Ti). These volatile species from the plasticizer and charge particles are detectable by a detection device. See Figure 3 for the abbreviation.

The utility model relates to the technical field of air filtration, and discloses a filter screen with a thermoplastic elastomer rubber coating structure, which comprises a filter screen shell body, a first rubber coating piece and a second rubber coating piece, and the first rubber coating piece and the second rubber coating piece are made of thermoplastic elastomer materials. The first rubber coating part and the second rubber coating part are integrally formed with the filter screen shell body through an injection molding process, the first rubber coating part and the second rubber coating part respectively coat the outer surfaces of the two opposite sides of the filter screen shell body, and the rubber coating part on at least one side extends to an assembly contact area on the outer side of the filter screen shell body; a groove is formed in the surface of the outer side of the filter screen shell body, and the first rubber coating piece is filled in the groove and extends to the outer side of the groove. The filter screen with the thermoplastic elastomer rubber coating structure has the advantages that sealing is achieved through thermoplastic elastomer rubber coating, the rubber coating is installed on the surface of a plastic part in a thermoplastic forming mode, and the situation that the overall using effect of a device is reduced due to secondary pasting is avoided.

The application discloses an olefin polymerization catalyst and a preparation method thereof, and the olefin polymerization catalyst is used for preparing a polypropylene thermoplastic elastomer, and the olefin polymerization catalyst contains silicon tetrachloride modified silicon dioxide, a transition metal component and a non-transition metal component; the transition metal component is titanium tetrachloride and / or titanium alkoxy, and the non-transition metal component is a magnesium-containing compound. The olefin polymerization catalyst has high initial activity and overall activity, and polypropylene particles with high porosity are obtained. The catalyst can obtain a polypropylene thermoplastic elastomer with high rubber content in the synthesis process of the polypropylene thermoplastic elastomer.

This invention relates to the field of insulation materials technology, specifically to a high-strength, tear-resistant, halogen-free, flame-retardant insulating material and its preparation method. The high-strength, tear-resistant, halogen-free, flame-retardant insulating material comprises the following components by weight: 70-90 parts EPDM rubber, 5-15 parts thermoplastic elastomer, 15-25 parts medium-density polyethylene, 10-20 parts ethylene-vinyl acetate copolymer, 3-5 parts triallyl isocyanate, 2-4 parts sulfur, 1-3 parts polyethylene wax, 3-5 parts zinc oxide, 1-3 parts antioxidant, 30-50 parts aluminum hydroxide, 20-40 parts modified silica, 0.2-0.5 parts ultraviolet absorber, 1-3 parts accelerator, and 2-4 parts silicone masterbatch. The high-strength, tear-resistant, halogen-free, flame-retardant insulating material prepared by this invention exhibits excellent tensile and tear resistance and flame-retardant properties, thereby extending its service life.

This invention discloses a thermoplastic elastomer composition, its preparation method, and its applications. The thermoplastic elastomer composition of this invention comprises the following components: PP resin I, SEBS, TPV, glass fiber powder, paraffin oil, antioxidant, and light stabilizer; wherein, the PP resin I conforms to ISO 1133-1-2011 standard, with a melt index of 80–130 g / 10 min at 230°C and 2.16 kg; the SEBS has a weight-average molecular weight of 80,000–160,000; and the TPV comprises PP resin II and EPDM. The thermoplastic elastomer composition of this invention combines PP resin with a specific melt index, SEBS with a specific weight-average molecular weight, and TPV, resulting in a thermoplastic elastomer composition that possesses both high fluidity and low gloss, as well as excellent high-temperature resistance.

An EPDM roofing membrane with improved hail resistance formed from a block of EPDM material with short aramid fibers added to the block of EPDM material at a concentration of 5 to 35 PHR, a weak alkaline accelerator added to the block of EPDM material at a concentration of 2 to 8 PHR, a thermoplastic elastomer added to the block of EPDM material at a concentration of 2 to 10 PHR, polysulfide silane added to the block of EPDM material at a concentration of 2 to 10 PHR; and a hemiaminal ether crosslinking agent added to the block of EPDM material at a concentration of 2 to 10 PHR.

The invention relates to the technical field of thermoplastic elastomer material production, and discloses a thermoplastic composite material composition, a thermoplastic composite material, and a preparation method and application thereof. The thermoplastic composite material composition contains an SBCs thermoplastic elastomer, polypropylene, filling oil, a carbon-based heat-conducting filler, a carbon-based reinforcing material and a dispersant, the SBCs thermoplastic elastomer contains maleic anhydride modified SEBS, relative to 100 parts by weight of the SBCs elastomer, the content of the filling oil is 50-120 parts by weight, and the content of the carbon-based heat-conducting filler is 50-120 parts by weight. The content of the polypropylene is 20-80 parts by weight, the content of the carbon-based heat-conducting filler is 10-60 parts by weight, the content of the carbon-based reinforcing material is 5-35 parts by weight, and the content of the dispersing agent is 1-10 parts by weight. The thermoplastic composite material obtained by using the composition disclosed by the invention has high thermal conductivity and high strength and is excellent in comprehensive performance.

A shock absorbing structure of a racket contains: a head and an absorption member matingly contacting with an internal fence of the head. The absorption member is a hollowly tubular structure and covers the internal fence totally. When the head is made of carbon-fiber composite material, the absorption member is made of any one of Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU). When the head is made of metal or aluminum alloy, the absorption member is made of any one of Thermosetting Elastomers, Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU). When the head and the absorption member are made of different materials, an amplitude of the head is different from an amplitude of the absorption member, and the head interferes the absorption member, thus absorbing vibration.

The invention relates to a door threshold with a cold-bridging break, which includes cast floor plates 1 and 2 that are on opposite sides of the door threshold, and reinforcement bars 3 connecting them. Between the floor plates 1 and 2, there is a vertical thermal insulation plate 4 with an edge running in the direction of the door threshold, the upper edge of the vertical thermal insulation plate 4 is covered by a generally U-shaped door threshold cover profile 5. Reinforcement bars 3 are made of non-metallic material, vertical thermal insulation plate 4 is a cellular glass plate, and U-shaped cover profile 5 is made of thermoplastic elastomer (TPE).

The present disclosure provides a conductive diaphragm and a speaker using same. The conductive diaphragm includes a main portion made of polymer material and a conductive portion located on the main portion. The conductive portion includes a substrate with a film layer and conductive material dispersed in the substrate, the film layer is solidified from at least one material of thermoplastic elastomer, phenyl silicone, isoprene rubber, or fluoroelastomer. Compared with the related technologies, the conductive diaphragm disclosed by the present disclosure has excellent atigue-resistant property and could maintain good adhesive strength and toughness.

Provided is a molding material that exhibits an excellent balance between moldability and flexibility of a molded article, and allows hardness differences within the molded article to be increased. In one embodiment, a molded article that is an additive-manufactured article of a thermoplastic elastomer resin composition is provided, wherein the minimum value of the hardness of the molded article is 65% or less of the hardness of the thermoplastic elastomer resin composition, and the hardness is measured using a hardness tester in accordance with ISO 7619. In one embodiment, the thermoplastic elastomer resin composition contains a styrene-based elastomer and cellulose fibers.

A method for manufacturing a plastic web includes a step of hot extrusion of thermoplastic particles. The thermoplastic particles comprise polyolefin particles that are selected from: thermoplastic polyolefin (TPO) particles; thermoplastic vulcanized polyolefin (TPV) particles; thermoplastic elastomer polyolefin (TPE) particles; and a mixture of all or some of these particles. A quantity of polyolefin particles is between 50% and 96% by weight, relative to a total weight of thermoplastic particles, the polyolefin particles being at least partially derived from recycled materials.

The invention provides a continuous production method of a micro-foaming shoe material and a product. The product is prepared from the following raw materials in parts by weight: 70-95 parts of a thermoplastic elastomer, 0-5 parts of a chain extender, 0.1-10 parts of a nucleating agent, 0-20 parts of a thermoplastic polymer and 1-5 parts of a processing aid. The continuous production method of the micro-foaming shoe material product has the following beneficial effects that the problem of discontinuous production of the micro-foaming product in the prior art is solved, and meanwhile, the production efficiency is effectively improved; the micro-foaming shoe material product produced by adopting the continuous production method provided by the invention is uniform in foam holes, and the surface quality of the product is effectively improved.

The invention belongs to the technical field of polyamide thermoplastic elastomer preparation and elastic fibers, and discloses a fiber-grade polyamide thermoplastic elastomer preparation method, which comprises a ring-opening reaction, a pre-polycondensation reaction and a polycondensation reaction, and specifically comprises the following steps: firstly, preparing a double-carboxyl-terminated prepolymer of which the end group is carboxyl through a ring-opening reaction of caprolactam; then the binary acid mixture and the diamine mixture are sequentially subjected to pre-polycondensation reaction and polycondensation reaction to prepare the polyamide thermoplastic elastomer, and the obtained polyamide thermoplastic elastomer can be used for preparing the polyamide elastic fiber through melt spinning. The polyamide thermoplastic elastomer disclosed by the invention does not have a bonding phenomenon in a melt spinning process, and has excellent mechanical properties and elastic properties. The preparation method is simple, large-scale preparation can be carried out in an existing polymerization device, the obtained elastomer can be subjected to spinning processing in existing spinning equipment, the production efficiency is high, and the preparation method has great application prospects.

The invention discloses a production method of a high-transparency and high-toughness BOPA (Biaxially Oriented Polyamide) film. The BOPA film is prepared from PA6T / 6I, a polyether-b-amide thermoplastic elastomer, POE (Polyolefin Elastomer), bis (tert-butylperoxyisopropyl) benzene, itaconic acid, zinc hydroxide, styrene and an antioxidant. The compatibility of the ITA-grafted POE is obviously improved, the tensile strength and the elongation at break of the blend are obviously improved, the toughening effect is effectively improved, the modified POE neutralized by the zinc hydroxide part not only can improve the compatibility between PA6T / 6I and POE, but also can reduce the influence of stable chemical bonds on the fluidity reduction of the blend, so that the toughness of the blend is improved. The later-stage processability of the blend is facilitated, and the product quality is improved; the polyether-b-amide thermoplastic elastomer, as a multi-block elastomer composed of a hard segment and a soft segment, can further improve the toughness of the blending material.

Method for producing a film composite (11) from several material webs (14, 15, 16, 17, 18) for a valuable or security document, wherein each material web (14, 15, 16, 17, 18) is transported along at least one transport roller (21, 22, 23, 24, 25) and fed to at least one lamination device (34), wherein each surface of the material web (14, 15, 16, 17, 18) that is laminated with an adjacent material web (14, 15, 16, 17, 18) is preheated with at least one heating element (29, 30, 31, 32) after leaving the last transport roller (21, 22, 23, 24, 25) and before entering the lamination device (34), and between two In each of the adjacent material webs (14,15; 15,16; 16,17; 17,18) at least one heating element (29, 30, 31, 32) is positioned, through which the surfaces of the adjacent material webs (14,15; 15,16; 16,17; 18) to be laminated are heated.17, 18) are preheated,- wherein the preheated material webs (14, 15, 16, 17, 18) are brought together with a pair of rollers (26) and then fed to the lamination device (34) and laminated together to form the film composite (11), characterized in that two or more material webs (14, 15, 16, 17, 18) are made of a thermoplastic elastomer, and that the respective heating element (29, 30, 31, 32) is controlled with a heating power such that the surface of these material webs (14, 15, 16, 17, 18) is preheated to a temperature that corresponds to or is higher than the glass transition temperature of the respective material web (14, 15, 16, 17, 18).