775 results about "Thermoplastic polymer" patented technology

The invention discloses a conductive yarn and a preparation method thereof, relates to the technical field of functional textile materials and composite conductive fiber preparation, and can solve the problems that an existing conductive yarn is poor in flexibility, insufficient in durability, prone to oxidation failure and difficult to integrate multiple functional performances. The preparation method comprises the following steps that S1, PBO yarn is soaked in a dopamine solution, a PDA modification layer is formed on the surface of the PBO yarn through a polydopamine self-polymerization reaction, and the PDA modification layer provides a chelation site and a bonding interface for metal deposition; s2, the PDA modified PBO yarn obtained in the step S1 is subjected to chemical silver plating, silver is deposited on a PDA modified layer to form a continuous conductive layer, and conductive PBO core yarn is prepared; s3, carrying out melt blending and granulation on the low-dielectric-constant flame-retardant filler and thermoplastic polymer resin to prepare flame-retardant composite particles; and S4, spinning by taking the conductive PBO core yarn prepared in the step S2 as a core layer and a melt formed by melting the flame-retardant composite particles prepared in the step S3 as a skin layer to prepare the conductive yarn.

The present invention relates to a lid film for airtight sealing of beverage capsules, in particular coffee capsules, comprising excellent barrier properties against gas ingress, water or humidity and oxygen: i.) at least one layer of paper, ii.) at least one layer containing polylactic acid, iii.) at least one layer of metallization, iv.) at least one sealing layer containing at least one thermoplastic polymer made from glucose, lignin or cellulose.

This invention provides a multifunctional gradient composite filament for 3D printing, its preparation method, and its applications, relating to the field of additive manufacturing materials technology. The filament's cross-section includes at least two structurally or functionally distinguishable regions, each region composed of a thermoplastic polymer with different chemical properties, or a thermoplastic polymer matrix with the same chemical properties but different functional modifications. These at least two regions are arranged in an ordered spatial pattern on the filament's cross-section using a multi-component co-extrusion technique, enabling pre-design and integration of properties. This invention overcomes the inherent limitations of traditional single-material filaments, achieving multifunctionality and performance designability of a single filament. It significantly improves the interlayer bonding performance of multi-component 3D printing and the comprehensive mechanical properties of the printed composite material. Furthermore, it allows for the production of components with both functional gradients and high mechanical properties in a single printhead operation, making it suitable for mass production.

The invention relates to a bionic mist catching net material and a construction method and application thereof, and belongs to the field of air water collecting materials. The bionic mist catching net is a thermoplastic polymer fiber net, and radiation refrigeration particles are blended in fibers of the fiber net; and the part coated with the hydrophobic micro-nano coating and the part not coated with the hydrophobic micro-nano coating on the surface of the fiber net are alternately distributed. The radiation refrigeration particles are introduced into the bionic mist catching net material, and the hydrophobic coating is distributed on the surface of the bionic mist catching net material, so that the light reflectivity and the intermediate infrared emissivity are improved, and the radiation refrigeration efficiency is improved. Besides, the surface hydrophobic coating part forms a super-hydrophobic area, fog drops are promoted to be quickly coalesced into beads after collision, energy dissipation caused by spreading of a liquid film is reduced, the fiber substrate without the coating is kept hydrophilic, a heterogeneous wetting surface is formed, Laplace pressure difference is generated by surface energy difference at a hydrophilic-super-hydrophobic interface, and the super-hydrophobic surface is formed. The spontaneous migration of liquid drops from a super-hydrophobic region to a hydrophilic region is accelerated, and the water collection efficiency is remarkably improved.

The disclosure describes a device, method, and transfer apparatus for stamping thermoplastic composite blanks. The blanks may consist of laminated fibrous plies which may comprise continuous fibers in a thermoplastic polymer matrix. Supporting unidirectional fibers or holding tapes, pre-impregnated with polymer and extending beyond a shaping area's edges may be clamped in jaws, allowing the blank to be suspended and heated without sagging. The transfer system moves the blank between a heating station and a stamping station, where a punch and die may shape it while maintaining calibrated tension to reduce defects such as creasing or delamination. Advanced jaw mechanisms, including pivoting jaws with multiple clamping slots, enable differential tensioning of plies for precise forming of complex geometries. After stamping, excess fiber extensions may be trimmed and may be recycled. This approach eliminates the need for nonrecyclable polyimide films and improves process reliability for thick or heavy blanks.

The invention relates to a thermoplastic molding composition (P) comprising: (A) thermoplastic polymer composition (A) comprising: (A-1) 10 to 50 wt.-% of graft copolymer (A-1), (A-2) 1 to 50 wt.-%, of thermoplastic polymer matrix (A-2) based on one or more vinylaromatic copolymers, (A-3) 20 to 50 wt.-%, of polymerized alkyl methacrylate component (A-3), and (A-4) 0 to 45 wt.-% of comonomer which is copolymerized with the at least one polymerized alkyl methacrylate component (A-3), where the sum of (A-1), (A-2), (A-3) and optional comonomers (A-4) is 83.2 to 99.8 wt.-%; (B) a hindered amine light stabilizer composition (B), comprising at least two of substances (B-1) to (B-3): (B-1) 0 to 0.9 wt.-%, of at least one hindered amine light stabilizer having a dipiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the dipiperidine structure (B-2) 0 to 0.9 wt.-%, of a hindered amine light stabilizer mixture having a monopiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the monopiperidine structure, and (B-3) 0 to 2 wt.-%, of at least one hindered amine light stabilizer having a polymeric structure comprising piperidine groups with at least one alkyl group at each of the 2 and 6 positions of the piperidine groups (C) 0 to 5 wt.-%, of one or more further additives (C), different from (B); and (D) 0 to 10 wt.-%, of colorants, dyes and / or pigments (D), different from (C); wherein the constituents (A) to (D) sum up to 100 wt.-% of the molding composition (P).

The invention relates to room-temperature self-repairing polyurethane with quadruple hydrogen bonds / disulfide bonds and a preparation method of the room-temperature self-repairing polyurethane, and the prepared polyurethane is a thermoplastic polymer and shows a dynamic cross-linked structure. The polyurethane is prepared by adopting a step-by-step polymerization method in the presence of two chain extenders containing different dynamic bonds, the prepared polyurethane has good mechanical properties, self-repairing of cracks can be realized in a room temperature environment, and the method is simple and easy to industrialize. The polyurethane has important application value in the industries of flexible electronics, medical instruments, long-acting protection and the like.

The present invention relates to a hot-melt adhesive composition comprising a biodegradable plastic, a thermoplastic polymer, a tackifier and a plasticizer, wherein the biodegradable plastic includes polyhydroxyalkanoate (PHA). The hot-melt adhesive composition according to the present invention has lower viscosity and higher adhesiveness compared to a petroleum-based hot-melt composition, and can be used as an eco-friendly hot-melt adhesive composition having physical properties corresponding to an excellent recycling criteria grade under recyclability assessment criteria.

A bamboo-based wood-plastic composite material manufacturing process has the following steps: S1, a bamboo processing step; S2, a bamboo core pretreatment step; S3, a wood-plastic composite material raw material preparation step; S4, a wood-plastic composite material hot processing step; S5, a bamboo blank processing step; S6, a wood-plastic composite material blank covering bamboo blank step; S7, a cooling and shaping step. The present application solves the problems of high density, high cost, brittleness and insufficient toughness of the existing wood-plastic composite material based on thermoplastic polymer, realizes the use of bamboo instead of plastic and solves the problem of recycling of waste plastic which is difficult to reuse. The present application can overcome the shortcomings of the prior art, be used for preparing a more practical and durable wood-plastic composite material which still has good mechanical properties after heating and forming. The present application also provides a product prepared by the bamboo-based wood-plastic composite material manufacturing process.

Powder mixture for the use as building material in additive manufacturing processes, wherein the powder mixture includes a first powder having powder particles of a first thermoplastic polymer material, and a reinforcement material that is at least partially embedded in the powder particles of the first powder and / or adhered to the surface of the powder particles of the first powder. The second powder includes powder particles of a second thermoplastic polymer material which is the same as or different from the first thermoplastic polymer material. The powder particles of the second powder do not include the reinforcement material or include it only in an amount of at most 50% by weight relative to the amount of the reinforcement material in or on the powder particles of the first powder.

The invention relates to the technical field of wireless communication equipment manufacturing, in particular to a method for manufacturing an FPC flexible antenna through integrated injection molding and the antenna, and the method comprises the following steps: preparing a copper foil layer on the surface of a double-layer polyimide substrate flexible circuit, and chemically plating a nickel-gold layer on the surface of the copper foil layer; a receding groove is formed in a golden finger area of the FPC flexible circuit board, and a positioning hole is formed in the edge of the FPC flexible circuit board; a Teflon coating is sprayed on the inner wall of the mold cavity, and a positioning column is mounted in the mold cavity; the method comprises the following steps: firstly, fixing a preprocessed FPC flexible circuit board in a mold cavity through a positioning column; and injecting a thermoplastic high polymer material heated to a molten state into a mold cavity, applying a dwell pressure to the injected molten material, so that the FPC flexible circuit board is completely coated with the molten material, cooling, and demolding to obtain the FPC flexible antenna. According to the invention, seamless integration of the antenna and the shell can be realized, so that the coupling problem of line damage and impedance mismatch in a traditional injection molding antenna is solved.

The invention relates to a low-cost injection molding bipolar plate based on conductive filler, and particularly relates to the technical field of fuel cells. The bipolar plate comprises 20-40% of a thermoplastic polymer matrix, 30-50% of expanded graphite, 10-30% of a conductive filler and 3-8% of a compatilizer. Wherein the conductive filler is composed of carbon nanotubes, graphene-coated carbon fibers and conductive carbon black according to a specific mass ratio. The preparation method comprises the steps of raw material pretreatment, conductive filler premixing, total mixing, twin-screw extrusion granulation and injection molding. An efficient three-dimensional conductive network is constructed through the synergistic effect of the multi-dimensional conductive filler, and excellent conductive performance is achieved under the condition of low total filler content. The obtained bipolar plate has high conductivity, low contact resistance, good mechanical strength and excellent corrosion resistance, and is suitable for large-scale production through injection molding, and the production cost is remarkably reduced. The bipolar plate is suitable for electrochemical energy conversion devices such as proton exchange membrane fuel cells and flow batteries.

The disclosure describes a device, method, and transfer apparatus for stamping thermoplastic composite blanks. The blanks may consist of laminated fibrous plies which may comprise continuous fibers in a thermoplastic polymer matrix. Supporting unidirectional fibers or holding tapes, pre-impregnated with polymer and extending beyond a shaping area's edges may be clamped in jaws, allowing the blank to be suspended and heated without sagging. The transfer system moves the blank between a heating station and a stamping station, where a punch and die may shape it while maintaining calibrated tension to reduce defects such as creasing or delamination. Advanced jaw mechanisms, including pivoting jaws with multiple clamping slots, enable differential tensioning of plies for precise forming of complex geometries. After stamping, excess fiber extensions may be trimmed and may be recycled. This approach eliminates the need for nonrecyclable polyimide films and improves process reliability for thick or heavy blanks.

The electrode piece includes a current collector, an active substance layer, a first insulating layer and a second insulating layer, where the current collector includes a main body part and a tab, the tab extends from a first end of the main body part, the first end is an end of the main body part in a first direction, the main body part includes a coating area and a transition area, and the transition area is arranged between the coating area and the tab; the active substance layer is arranged on a surface of the coating area; the first insulating layer is arranged on an end face of the main body part at the first end; and at least a part of the second insulating layer is arranged on a surface of the transition area, the second insulating layer includes a thermoplastic polymer and an organic binder.

The invention relates to a composite fiber and a preparation method thereof. The composite fiber comprises: a core comprising MXene polymer fibers, wherein MXene is distributed as stacked nanosheets within a first polymer; a first coating of organic molecules based on benzoic acid on the MXene polymer fibers; a second polymer in the form of fibers on the first coating; and a second coating of a thermoplastic polymer having a thermal strain of about 80 DEG C or higher. Methods for making composite fibers involve mixing MXene and a first polymer, depositing a first coating, stranding and twisting with a second polymer, and applying a second coating. The first polymer may include polyacrylonitrile (PAN) and the second polymer may include a material such as nylon or polyethylene terephthalate (PET). The method includes steps such as wet spinning and surface treatment at elevated temperatures.

A glass fiber-reinforced thermoplastic polymer composition comprising a sheathed continuous multifilament strand comprising a core that extends in the longitudinal direction and a polymer sheath which intimately surrounds said core, wherein the core comprises an impregnated continuous multifilament strand comprising at least one continuous glass multifilament strand, wherein the at least one continuous glass multifilament strand is impregnated with an impregnating agent, wherein the polymer sheath consists of a thermoplastic polymer composition comprising a thermoplastic polymer, wherein the impregnating agent comprises at least one of an aromatic phosphate ester, polyphosphonate, poly(phosphonate-co-carbonate).

Lignin pellets comprising fused lignin are described herein. The lignin pellets may further comprise a processing aid, and / or a surfactant, and / or a chemical modifying agent, and / or a compatibilizer and / or a thermoplastic polymer. An extrusion process for producing the lignin pellets and their use in the manufacture of lignin thermoplastic blend products, polyols, polyphenols, polyaromatics and polyurethanes is also disclosed herein. The extruded lignin pellet may be dry-blended with additional thermoplastic and / or additive and then directly processed using processes such as injection molding, compression molding, extrusion, extrusion coating, blowing, thermoforming, stamping, foaming, fiber drawing, calendering or rolling.

Inflatable assembly (1) comprising a tubular textile support (10) made of seamless fabric, said support being coated with a layer of thermoplastic polymer material and being closed at its ends (3, 4) so ​​as to obtain a chamber airtight to an inflation gas, in which the walls (7) of said chamber have a surface density of less than 1000 g / m². Figure for the abbreviation: Fig. 2

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.

Intumescent composition comprising an acid donor (A), a carbon donor (B), a binder polymer (C) and a blowing agent (D). The acid donor (A) is selected from the group consisting of ammonium polyphosphate, ammonium dihydrogen phosphate, ethylenediamine phosphate, ammonium pentaborate, guanylurea phosphate, diguanidine phosphate and mixtures thereof. The carbon donor (B) is selected from the group consisting of glucose, arabinose and other monosaccharides, lactose, maltose and other disaccharides, starch, cellulose, dextrin and other polysaccharides, sorbitol, erythritol, pentaerythritol, dipentaerythritol, mannitol and other polyhydric alcohols and mixtures thereof. The blowing agent is provided in the form of microsphere particles comprising a thermoplastic polymer shell encapsulating a propellant, which microsphere particles are expandable microspheres.

This application provides an electrode sheet and its preparation method, a battery cell, a battery, and an electrical device, belonging to the field of battery technology. The electrode sheet includes a current collector, an active material layer, a first insulating layer, and a second insulating layer. The current collector includes a main body and a tab, with the tab extending from a first end of the main body along a first direction. The main body includes a coating area and a transition area, with the transition area disposed between the coating area and the tab. The active material layer is disposed on the surface of the coating area. The first insulating layer is disposed on the end face of the main body at the first end. At least a portion of the second insulating layer is disposed on the surface of the transition area, and the second insulating layer includes a thermoplastic polymer with a volume particle size distribution D. V 50 represents the maximum particle size D of thermoplastic polymers, ranging from 6μm to 10μm. max The thickness ranges from 90μm to 110μm. The technical solution of this application is beneficial to improving the reliability of individual battery cells.

Provided are embodiments of an extruded membrane material. The extruded membrane material includes a first thermoplastic polymer and a second thermoplastic polymer. The first thermoplastic polymer and the second thermoplastic polymer are immiscible. The first thermoplastic polymer forms a first phase oriented along an extrusion direction, and the second thermoplastic polymer forms a second phase oriented along the extrusion direction. The first phase is co-continuous with the second phase. Further, the extruded membrane material has a tensile yield strength of at least 10 MPa along the extrusion direction and a peel strength of 4 N or less transverse to the extrusion direction.

The medical tubing may have a continuous inner layer with a continuous outer layer thereon, where the inner layer comprises a polyolefin, such as polyethylene or polypropylene or a functionalized polyolefin. The outer layer may include a thermoplastic polymer, for example, including one or more or a mixture of a thermoplastic polyurethane (TPU), a thermoplastic olefin (TPO), a thermoplastic elastomer (TPE), a styrene-containing thermoplastic elastomer (S-TPE), a polyolefin elastomer (POE), a styrene block copolymer (SBC). Advantageously, the outer layer and / or the inner layer do not comprise polyvinyl chloride. Such tubing may be readily solvent bonded to a medical connector and used with an infusion kit.

Disclosed are a method for creating a surgical training model, a surgical training model apparatus, a bone model, an article that emulates tissue of an animal musculoskeletal system, an article that emulates animal fat tissue, and an article that emulates animal skin tissue. One version of the method comprises placing a spinal vertebrae model in a cavity model that emulates an animal body cavity; forming a first layer on top of the vertebrae model, wherein the first layer emulates an animal muscle tissue; placing a second layer over the first layer, wherein the second layer emulates an animal fat tissue; and placing a third layer over the second layer, wherein the third layer emulates an animal skin tissue. The spinal vertebrae model can be 3D printed from a thermoplastic polymer and infiltrated with a foam into an interior space of the 3D printed spinal vertebrae model.

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 relates to the technical field of filter materials, in particular to a mineral composite filter element and a preparation method and application thereof. The mineral composite filter element comprises the following raw materials in parts by weight: 1-50 parts of a hydrogen production material, 1-15 parts of a mineralization material, 5-10 parts of a microporous material, 1-10 parts of an antibacterial material, 5-50 parts of activated carbon and 5-60 parts of a thermoplastic polymer, the hydrogen production material is one or two of magnesium-based and silicon-based mineral hydrogen production material particles. Through the integrated structural design, multiple functions of filtration, mineralization, hydrogen production, antibiosis and the like are efficiently, stably and enduringly integrated, and the defects that in the prior art, a filter element is single in function, short in service life, unstable in efficiency, complex in system and the like are overcome.

An article of footwear includes a knitted component (1030), wherein the knitted component (1030) includes a knitted base layer (1040) secured to a knitted web layer (1050). The knitted web layer (1050) may have yarns that define cells (1056) having openings through which the knitted base layer (1040) is exposed. A thermoplastic polymer material that may initially form yarns that form the knitted web layer (1050) or the knitted base layer (1040) may at least partially fuse the knitted base layer (1040) to the knitted web layer (1050). In some aspects, the knitted component (1030) further includes one or more embedded strands (1060), the one or more embedded strands (1060) being at least partially disposed between the knitted base layer (1040) and the knitted web layer (1050). The embedded strands (1060) may also include a thermoplastic polymer material that at least partially melts during heating of the knitted component (1030) and fuses the embedded strands (1060) to the knitted base layer (1040) and the knitted web layer (1050) upon cooling.

The present invention relates to a multilayer product comprising at least: a) a polyolefin-based main layer, b) a thermoplastic polymer surface layer, c) a protection layer of crosslinked polyurethane, d) a textile sublayer. The invention also relates to the use of this multilayer product, particularly in the field of leatherwork.

According to the preparation method of the foaming gradient filtering material, the protective layer is directly obtained on the upper surface of the glass fiber layer through foaming, and the manufacturing cost is reduced. The composite material comprises a top foaming layer and a bottom glass fiber layer, after the bottom glass fiber layer is manufactured, the top foaming layer is directly generated on the upper layer of the bottom glass fiber layer through foaming, and the top foaming layer is a thermoplastic polymer prepared through a foaming process. The air permeability of the top foaming layer is gradually reduced from top to bottom; the air permeability of the bottom glass fiber layer is gradually reduced from top to bottom.

The invention provides a preparation method of a composite fiber and a fabric with sunlight barrier performance. The preparation method of the composite fiber comprises the following steps: S10, respectively preparing a skin layer melt and a core layer melt; the skin layer melt comprises a thermoplastic polymer matrix and titanium dioxide particles; the core layer melt comprises a thermoplastic polymer matrix, titanium dioxide particles and cesium tungsten bronze nanoparticles; s20, the skin layer melt and the core layer melt are introduced into a composite spinning assembly, the skin layer melt is controlled to wrap the core layer melt to form skin-core type composite fluid, and the skin-core type composite fluid is extruded through a spinneret plate with triangular holes; and S30, carrying out cross air blowing cooling, drafting and winding on the extruded fluid to obtain the sheath-core type composite fiber with a triangular cross section outer contour. The composite fiber can keep good spinnability and hand feeling, can block sunlight and heat at the same time, and provides better wearing comfort.