72 results about "Thermoplastic matrix" patented technology

A composition for a thermoplastic material including: 0 to 70% by weight, preferably 20 to 60% by weight, of short reinforcing fibers, 30 to 100% by weight, preferably 40 to 80% by weight, of a thermoplastic matrix based on at least one semi-crystalline polyamide polymer, 0 to 50% of additives and / or other polymers, the semi-crystalline polyamide polymer being: a) a reactive composition including at least one reactive precursor polyamide prepolymer of said semi-crystalline polyamide polymer, or as an alternative to a), b) a non-reactive composition of at least one polyamide polymer, the composition being that of the thermoplastic matrix defined above, and the reactive polyamide prepolymer of composition a) and the polyamide polymer of composition b) including of at least one BACT / XT copolyamide.

Described herein are thermoplastic vulcanizate compositions including a thermoplastic matrix including a cyclic olefin copolymer and an oil and particles dispersed in the thermoplastic matrix and including at least partially crosslinked rubber. The thermoplastic vulcanizate compositions have a tan delta curve including a peak occurring between about -20 °C to about 90 °C and having a peak value of about 0.1 to about 2.0.

The application provides a preparation method and manufacturing device of chopped carbon fibers, and belongs to the technical field of chopped carbon fiber manufacturing. The preparation method of the chopped carbon fibers comprises the following steps: providing a continuous finished carbon fiber bundle, the surface of the carbon fiber bundle being a thermosetting coating; sequentially performing twisting treatment, degumming treatment, sizing treatment, pre-drying treatment, slitting treatment and drying treatment on the carbon fiber bundle to obtain the chopped carbon fibers; and in the sizing treatment step, the sizing agent is a thermoplastic resin. The chopped carbon fibers prepared by the method can resist high temperature and can be firmly combined with a thermoplastic matrix material.

The invention relates to the technical field of automatic laying of composite materials, in particular to a laser-assisted in-situ forming process and device protected by high-temperature inert gas, and the process comprises the following steps: supplying a prepreg tape to a laying point; the laying points are heated through laser; an inert gas protection cover is arranged on the periphery of the laying point, heated inert gas is supplied, a local inert atmosphere is formed, and meanwhile the inert gas forms composite heating through convective heat transfer and laser radiation; and under the covering of the protective cover, the in-situ consolidation is realized through the compaction of the compaction roller. The device comprises a laying head module, a laser heating unit, an inert gas protection cover and an inert gas supply unit. A stable high-temperature inert protection environment is formed in a laser heating and compacting area, the oxidation and thermal aging risks of a thermoplastic matrix are reduced, the heating efficiency is improved, the laying speed is increased, control over a temperature field is achieved through partitioned gas supply, and therefore the forming quality and process stability of a composite material component are improved.

A flexible pipe comprising a pipe body, an end fitting, and a retaining material. The pipe body has a first pipe layer formed of a tape comprising a plurality of metallic wires encapsulated in a thermoplastic matrix material. The first pipe layer is at least partially free of the matrix material over a length of the pipe body at a first end thereof so exposing a portion of the metallic wires. The first end of the pipe body is mounted in the end fitting. The end fitting comprises a mounting member concentric to the first pipe layer. The retaining material is applied to the exposed portion of the metallic wires securing the metallic wires to the mounting member. There is also provided a method of connecting an end fitting to a pipe body of a flexible pipe.

The invention relates to a thermoplastic composite comprising:at least one straight portion having a circular section with an external diameter, and a longitudinal axis,at least one bent portion,at least one bending radius, of the at least one bent portion the bending radius being at most a factor f equal to 5 with respect to the external diameter of the at least one straight portion, anda thermoplastic matrix and a fiber reinforcement.The invention also relates to a structure to be reinforced comprising at least one thermoplastic, uses of a thermoplastic composite and a method for producing a thermoplastic composite.

A method of manufacturing a lightweight, structurally reinforced thermoplastic material object, the object comprising at least one reinforced zone, the method comprising providing a heatable rigid forming chamber (2) having a chamber volume (V). At a base temperature below a thermoplastic softening temperature, the chamber is loaded with a plurality of thermoplastic loft bodies (12a, 12b, 12c, 12d, 12e, 12f) and a plurality of thermoplastic reinforcement bodies (14a, 14b, 14c, 14d, 14e, 14f). The loft bodies are: i) heatable loft bodies comprising a thermoplastic matrix containing an elastically compressible assembly of reinforcing fibers embedded therein, and / or ii) lofted nonwoven comprising an elastically compressible assembly of reinforcing fibers and thermoplastic fibers. Upon closing the chamber, any loft bodies configured as lofted nonwovens are elastically compressed, thereby establishing a first amount of internal pressure. The chamber is then heated to above the thermoplastic softening temperature, thereby bringing the reinforcement bodies and the loft bodies into a thermoplastically formable state, and thereby causing any loft bodies configured as heatable loft bodies to establish a second amount of internal pressure. After a predetermined processing time, the chamber is allowed to cool, thereby solidifying the reinforcement bodies and the loft bodies, thereby producing the structurally reinforced object.

The invention discloses a high-elasticity foaming material capable of realizing closed-loop regeneration foaming and a preparation method thereof, and relates to the technical field of processing of high polymer materials, and the scheme is that the high-elasticity foaming material is prepared from thermoplastic elastomer particles, EVA or EVA / POE / SEBS blend, dicarboxylic acid and a cross-linking system in parts by mass; the cross-linking system is a peroxide cross-linking system or an ionic bond cross-linking system; the regenerated foamed product is obtained through premixing, melt blending granulation, secondary mixing, introduction of a cross-linking system, forming, high-pressure gas physical foaming, recycling, re-granulation and re-foaming. The device has the beneficial effects that the same-level closed-loop circulation of foaming products is realized, and recycled materials can be directly reused; the remoldability of a thermoplastic matrix is cooperated with a controllable cross-linked network, so that the stability of a processing window is improved, and the density and the elasticity are more easily kept consistent after re-foaming; high-pressure gas physical foaming is adopted, dependence of chemical foaming agents is reduced, the process is cleaner, and common extrusion / injection molding equipment is compatible.

A sheet comprises a polymer matrix, a first filler material and a second filler material. The first filler material is selected from wood material, plant-based material, mineral fillers, or combinations thereof. The second filler material is provided by low density particles, wherein the low density particles have a density less than 0.30 g / cm3. The first filler material as well as the second filler material are embedded in the polymer matrix. The polymer matrix is selected from a thermoplastic matrix, a thermoset matrix or combinations thereof.

This invention describes a fiber-reinforced composite laminate for a molded component used in electromagnetically welded laminates. The laminate has multiple structural layers, each formed of conductive fibers embedded in a thermoplastic matrix, wherein eddy currents can be induced in the conductive fibers by a conductor generating an electromagnetic field. The structural layers include two adjacent structural layers in a first pair, a second pair, and optionally a third pair. The first pair has an intermediate layer between its structural layers that substantially allows eddy currents to flow between the two structural layers of the first pair. The second pair has an intermediate layer between its structural layers that substantially prevents eddy currents from flowing between the two structural layers of the second pair. The optional third pair has no intermediate layer between the two structural layers of this pair. The laminate is efficiently heated by an electromagnetic field.

Composite material based on stacked alternate layers of: - a matrix based on a polymer of natural origin derived from renewable sources in the form of thin films; said matrix can be PolyLactic Acid (PLA) or Polybutylene Succinate (PBS); - natural plant fibres, preferably flax, hemp, jute. In a first embodiment, such natural plant fibres are in the form of a fabric provided with a warp and weft perpendicular to each other. In a second embodiment, such natural plant fibres are in the form of unidirectional windings of tapes obtained through filament winding technique. The present invention further comprises two methods for the preparation of the first and of the second embodiments, respectively. The composite materials according to the present invention can be used to produce medical devices intended for supporting patients.

The invention relates to a vehicle seat (100) comprising a backrest structure (102) and a seat structure (103). According to the invention, the backrest structure (102) and the seat structure (103) each comprise a frame made of an expanded thermoplastic material and traversed by a plurality of unidirectional strips (120), each comprising fibers integrated into a thermoplastic matrix. Figure for the abstract: Fig. 2

This invention relates to a method for producing 3D printing material. The method involves first producing, from at least one photocatalyst and at least one phyllosilicate, a photocatalyst-phyllosilicate composite; From the photocatalyst-phyllosilicate composite and at least one thermoplastic polymer, a photocatalyst-phyllosilicate-polymer composite is then produced. Finally, the photocatalyst-phyllosilicate-polymer composite is subjected to a shaping process, producing a 3D printing material. This invention also relates to a 3D printing material comprising a thermoplastic matrix and, embedded in the matrix, a composite material containing at least one photocatalyst and at least one phyllosilicate. This invention further relates to a method for producing components from the 3D printing material and a component produced using this method.

There is disclosed a flexible pipe for conveying oil and gas field fluids. The pipe comprises a pipe body comprising a first pipe layer formed of a plurality of metallic wires embedded in a composite, the composite comprising a thermoplastic matrix material and a reinforcement dispersed therein. A heat distortion temperature of the composite is at least 200° F. (˜90 °C.) when tested in accordance with ASTM D648 using an outer fibre stress of 0.455 MPa.

A method for manufacturing a sandwich component with a porous core is presented and claimed. In this method, a core material in solid form is placed between two fiber-matrix semi-finished products in a mold. The fiber-matrix semi-finished products have a fiber layup embedded in a thermoplastic matrix. The core material consists of a thermoplastic core polymer containing a blowing agent. The blowing agent expands above a blowing temperature that is higher than the melting temperature of the core polymer. The mold is closed and heated to a mold temperature higher than the blowing temperature, causing the blowing agent to gasify, the core material to expand into a porous core, and the fiber-matrix semi-finished products to be pressed into the mold through the expanded core material. Furthermore, a sandwich component is disclosed and claimed.

There is disclosed a flexible pipe comprising a pipe body comprising first and second pipe layers. The first pipe layer is a composite pipe layer formed of a composite comprising a reinforcement embedded in a thermoplastic matrix material. The pipe further comprises an end fitting to which a first end of the pipe body is connected, the end fitting comprising a tubular connector member concentric to the pipe body. A length of the pipe body at the first end is free of the second pipe layer so exposing the first pipe layer to the tubular connector member to enable direct contact therebetween.

This invention relates to the field of spring clip molding technology, and particularly to a spring clip molding mold and process based on long carbon fiber reinforcement. The mold includes an upper pressure plate, a lower pressure plate, and an upper pressure head. An upper mold cavity seat, a middle transition body, and a bottom support leg are vertically arranged between the upper and lower pressure plates. A push rod is provided on the inner side of the bottom support leg. A cylindrical mold cavity hole is provided inside the upper mold cavity seat, and two L-shaped side sliders and a central core assembly are arranged inside the cylindrical mold cavity hole. The process steps include: mixing long carbon fibers with a thermoplastic matrix, heating to obtain a melt, transferring the melt into a mold, closing the mold and applying pressure, and obtaining a hollow cylindrical blank after holding pressure and cooling. The hollow cylindrical blank is then cut and machined. This invention eliminates the prepreg preparation process, resulting in a shorter process flow, higher production efficiency, better uniformity of spring clip dimensions, continuous and intact fibers in the groove area, and significantly improved mechanical properties.

The invention discloses a high-transparency halogen-free flame-retardant polymer film as well as a flame-retardant master batch and a preparation method thereof. The polymer film is prepared from a raw material composition, and the composition comprises a thermoplastic matrix and a halogen-free synergistic flame-retardant system composed of a phosphorus-based flame retardant, a metal hydroxide and an intumescent flame retardant. The invention further discloses the flame-retardant master batch and a method for preparing the film through the steps of side feeding, vacuum exhausting, two-way stretching, beta-ray closed-loop thickness measurement and the like. The thickness of the high-transparency halogen-free flame-retardant polymer film is 5-200 [mu] m, the total halogen content is less than or equal to 900 ppm, the UL-94VTM-0 flame-retardant grade is met, the limit oxygen index LOI is greater than or equal to 30%, meanwhile, the high-transparency halogen-free flame-retardant polymer film has the tensile strength greater than or equal to 29 MPa, the high light transmittance greater than or equal to 86% and the low haze less than or equal to 5%, and the problem that the ultra-thin, transparent, halogen-free and efficient flame-retardant aspects are difficult to take into account in the prior art is solved.

A system, composition, and method are disclosed for producing superhydrophobic and antifouling polymer materials. The invention incorporates antifouling agents such as capsaicin, medetomidine, tralopyril, or zinc pyrithione together with hydrophobic additives such as polydimethylsiloxane, polytetrafluoroethylene, fluoropolymers, or surface-modified nanoparticles into natural or synthetic rubber and thermoplastic matrices. In one approach, pre-formulated antifouling compositions are added as solid components during compounding, and in another, the polymer itself serves as a carrier medium for direct incorporation of the active ingredients. The compounded materials exhibit controlled release of antifouling agents, low surface energy, and superhydrophobic behavior that reduces drag and resists attachment of marine and freshwater organisms. A manufacturing system may include compounding, monitoring, and forming units, with optional plasma or laser treatment to enhance nanoscale roughness. The invention enables durable, environmentally responsible materials for marine, industrial, and consumer applications requiring long-term fouling resistance.

The invention relates to a thermoplastic composite material comprising a thermoplastic matrix and a fibrous material impregnated with the thermoplastic matrix, wherein the fibrous material comprises carbon fibers with a weight average aspect ratio of length divided by diameter (L / D) of at least 500; the thermoplastic matrix comprises a thermoplastic polymer and a laser absorbing additive.

A fibre-reinforced thermoplastic unidirectional (UD) tape arranged for use in a reinforced thermoplastic pipe (RTP) configured for transporting fluids, wherein the UD tape comprises a thermoplastic matrix material and unidirectionally aligned reinforcing fibres dispersed within the thermoplastic matrix material, wherein said unidirectionally aligned reinforcing fibres extend in a longitudinal direction of the UD tape, wherein the thermoplastic matrix material comprises: - at least one non-polar polymer; - at least one polar polymer, and - at least one compatibilizer, wherein the thermoplastic matrix material comprises a non-polar polymer to polar polymer volume ratio of from 40:60 to 70:30. A method of manufacturing and use thereof and a reinforced thermoplastic pipe (RTP) comprising the UD tape.

Microwave near-field applicator (1) for near-field coupling of microwaves into a composite material (M) in order to locally at least partially melt a thermoplastic matrix of the composite material (M), wherein the microwave near-field applicator (1) comprises: - a flattened application end section (2) which extends longitudinally along a first longitudinal axis (L1) of the microwave near-field applicator (1) and which has an application surface (A), wherein the application surface (A) extends in an end plane (E) of the application end section (2) parallel to the first longitudinal axis (L1), - a connecting end section (3) which extends longitudinally along a second longitudinal axis (L2) of the microwave near-field applicator (1) and which is designed for connecting the microwave near-field applicator (1) to a microwave generator (20), - an electrically conductive inner conductor element (4) and an electrically conductive return conductor tube body (5) capacitively coupled to the inner conductor element (4), wherein the inner conductor element (4) and the return conductor tube body (5) extend coaxially longitudinally from the application end section (2) to the connection end section (3), - wherein the inner conductor element (4) and the return conductor tube body (5) are bent between the application end section (2) and the connection end section (3) such that the second longitudinal axis (L2) is perpendicular, for example perpendicular, to the end plane (E) of the application end section (2).

The present invention has: a first thermoplastic fiber composite section in which a first fiber member is mixed with a first thermoplastic matrix resin; a second thermoplastic fiber composite section in which a second fiber member is mixed with a second thermoplastic matrix resin; a joining section that joins the first thermoplastic fiber composite section and the second thermoplastic fiber composite section; and a stretched section which, with the first thermoplastic fiber composite section and the second thermoplastic fiber composite section in an unjoined state, stretches around the joining section, centered on the joining section, extending between the first thermoplastic fiber composite section and the second thermoplastic fiber composite section, wherein the joining section is made of a resin identical to the first matrix resin. (Selected drawing: fig. 1)

The invention relates to a method for manufacturing a hollow body made of composite material, said method comprising the following successive steps: i) Manufacturing an elongated, unconsolidated textile preform using a specific device, the elongated, unconsolidated textile preform having a constant cross-section along its entire length, ii) Co-consolidation in a mold of the textile preform obtained in the previous step with at least one part fitting into the textile preform, iii) Demolding the resulting composite part at a temperature lower than the crystallization temperature of the thermoplastic matrix, as well as on the hollow body. Figure for the abstract: Fig. 10

The invention discloses a chemical modification reinforced composite material green continuous preparation technology, and relates to the technical field of composite material preparation, and the chemical modification reinforced composite material green continuous preparation technology comprises the following steps: carrying out mechanical grading and drying on reinforced fibers or water-containing pasty alkaline residues; the method comprises the following steps: carrying out water-phase enzymatic pretreatment on fibers or water-containing pasty alkaline residues in a continuous flow contactor; performing on-line activation on the fiber or the water-containing pasty alkaline residue through atmospheric pressure plasma or corona; performing continuous coating size treatment on the fibers or the water-containing pasty alkaline residues; continuously adding a thermoplastic matrix material, a grafting monomer or a grafting auxiliary agent and a nano reinforcing agent into a double-screw reactive extruder, and carrying out reactive extrusion; and feeding the functional fibers into a vacuum impregnation tank in a directional laying or continuous winding manner. According to the method, traditional organic solvent dipping or high-energy chemical etching is replaced by enzymatic aqueous phase pretreatment and atmospheric pressure plasma synergistic surface activation, so that solvent residue and high energy consumption are avoided, and meanwhile, the surface chemical reaction site density of the fiber water-containing pasty alkaline residues is remarkably improved.

A composite profile comprises a body (70) having unidirectional fiber strands forming a first reinforcing material, the first reinforcing material being coated with a first thermoplastic matrix, the body (70) being at least partially covered by an outer layer (71). The outer layer (71) comprises a second reinforcing material formed of short, randomly oriented fibers, the second reinforcing material being coated with a second matrix of a second thermoplastic material. Frame made of such profiles. Pultrusion process for producing such profiles. Figure for the abstract: Fig. 1

Provided is a fiber-reinforced material obtained from recycled virgin materials, which has sufficient impact resistance. The fiber-reinforced material has quasi-isotropy, and contains fine pieces of a thermoplastic fiber-reinforced resin composite material before disposal, which have a length of greater than 15 mm and less than or equal to 100 mm, as a laminate having at least one fiber-reinforced sheet containing a reinforcing fiber base material and a thermoplastic matrix resin. In a Charpy impact test according to ISO 179-1, the Charpy impact strength of the fiber-reinforced material is 75% or greater of the maximum Charpy impact strength of the thermoplastic fiber-reinforced resin composite material before disposal, which is obtained by the following determination method. The fiber direction of the reinforcing fiber contained in the fiber-reinforced sheet constituting the outermost layer of the thermoplastic fiber-reinforced resin composite material before disposal is defined as 0°, and test pieces are cut out in the 0°, 45°, and 90° directions, respectively. The Charpy impact strength of each test piece is determined according to ISO 179-1. The maximum value among these is defined as the maximum Charpy impact strength.

A method and a device for melt impregnation of fibers with a thermoplastic matrix. To provide a method and a device for impregnating dry fibers with a highly viscous thermoplastic matrix, the fibers are guided over a curved, perforated metal sheet as an impregnation line while applying a contact pressure, wherein the highly viscous thermoplastic matrix passes through the perforations of the metal sheet in order to subsequently impregnate the fibers. The metal sheet is not flat, but is integrated into the impregnation unit in a curved shape. By deflecting the fibers, which may be present as fiber bundles or as single fibers, around the curved metal sheet, the necessary contact pressure between the fibers and the plastic supply can be created. The fibers thus move under a longitudinal tensile stress over the perforated metal sheet, creating a sinusoidal contact pressure distribution between the fibers and the metal sheet.

A cover layer for an automotive trim component includes a porous fibrous carrier layer and a polymeric thermoplastic matrix wherein the polymeric thermoplastic matrix and the porous fibrous carrier layer form a composite layer that forms a visible face of the cover layer. In the composite layer, the polymeric thermoplastic matrix wraps the fibers of the carrier layer and fills pores between the fibers such that the porous fibrous carrier layer remains visible through the thermoplastic polymer matrix itself from the visible face of the cover layer.