502 results about "Fibre reinforcement" patented technology

In order to solve the problems that an existing stretchable circuit board is large in impedance and short in service life, the stretchable circuit board comprises an elastic substrate and an elastic packaging layer, the elastic packaging layer covers the surface of one side of the elastic substrate, and the elastic packaging layer covers the surface of the other side of the elastic substrate. A fiber reinforcement area is formed on one side, facing the elastic packaging layer, of the elastic substrate, a glass fiber layer penetrating through the elastic substrate is arranged in the fiber reinforcement area, a line groove is formed in the fiber reinforcement area, the glass fiber layer partially penetrates through the line groove, the line groove is filled with a liquid metal coating, and the liquid metal coating is arranged on the elastic substrate. And a circuit pattern is formed by the liquid metal coating in the circuit groove.

The invention discloses a composite material barrel shell, a spliced buoy and a floating mat structure, the composite material barrel shell comprises a barrel shell body which is continuously formed by adopting a fiber reinforced material through a pultrusion process, and a mounting plane of a plane structure is formed at the top of the barrel shell body; the two sides, in the width direction of the barrel shell body, of the installation plane protrude to form installation turned-over edges. The spliced buoy comprises a plurality of composite barrel shells and spliced plugs, and barrel shell bodies are linearly arranged in the length direction. Due to the fact that the whole top face of the barrel shell body is the installation plane of the plane structure, assembling connection with an upper structure is facilitated, all the installation planes and the installation turnups can support the upper structure, and the splicing type floating barrel can be conveniently and flexibly spliced to obtain the splicing type floating barrel with the needed length according to actual requirements. And meanwhile, the splicing operation is simple, and the splicing efficiency is high. The floating mat structure can be used as various water platforms and is good in universality, high in structural strength and good in weather resistance.

The invention relates to the technical field of sheet conveying production, in particular to a continuous fiber reinforced thermoplastic composite sheet conveying production line which comprises two conveying frames, a conveying belt is arranged between the two conveying frames, and fixing plates are fixedly connected to the left portions of the upper ends of the two conveying frames. The upper ends of the two fixing plates are jointly and fixedly connected with a top plate. According to the continuous fiber reinforced thermoplastic composite sheet conveying production line, the continuous fiber reinforced thermoplastic composite sheet is extruded through the pressing rollers, bubbles possibly generated in the composite sheet in the thermoplastic process can be reduced, and therefore the compactness and structural integrity of the composite sheet are improved; and a spring is arranged in the extrusion mechanism, so that self-adaptive pressing of the composite sheets with different thicknesses can be realized, the equipment can quickly switch corresponding cold source or heat source types according to the materials, thicknesses or process requirements of the different composite sheets, and the adaptability of the production line to diversified production requirements is enhanced.

The invention discloses a glass fiber reinforced plastic wiredrawing plate and a processing method thereof, the glass fiber reinforced plastic wiredrawing plate comprises a glass fiber reinforced plastic plate matrix, the glass fiber reinforced plastic plate matrix comprises a fiber reinforced matrix layer and a gel coat layer on at least one surface of the fiber reinforced matrix layer; at least one surface of the glass fiber reinforced plastic plate substrate is provided with a wire drawing structure; the fiber-reinforced matrix layer is formed by infiltrating fibers in matrix layer resin, and the fibers in the fiber-reinforced matrix layer are fiber chopped yarns; and any one or combination of fiber continuous yarns, fiber surface felts, fiber felts, fiber stitch-bonded felts, fiber composite felts, fiber cloth, fiber multi-axis cloth, fiber warp-knitted cloth, fiber composite cloth and fiber woven products. By arranging the wire drawing structure, the surface roughness is improved so as to enhance the bonding force, and the pollution and bonding problems caused by mechanical polishing are avoided; the processing method simplifies the process, reduces the cost, does not need complex corona treatment, provides a good contact surface for bonding of the glass fiber reinforced plastic plate and other materials, and guarantees the bonding effect.

A process for preparing a fiber reinforced thermoplastic is disclosed. The process includes melting a first thermoplastic and a second thermoplastic in a melting zone of a twin-screw processor, feeding at least one continuous fiber downstream of the melting zone into a melted mixture of the first thermoplastic and the second thermoplastic, incorporating the at least one continuous fiber into the melted mixture in a mixing zone, the mixing zone including at least one wave element having a continuous outer surface in the form of a helical wave, and obtaining the fiber reinforced thermoplastic from the twin screw processor. Further, a fiber reinforced thermoplastic composition prepared by an extrusion process the composition having a density between 1.3 g / cc to 1.7 g / cc and a flexural modulus of at least 4000 MPa is disclosed.

A hollow core insulator is provided for housing an electronics module for use in power transmission and distribution lines, the hollow core insulator comprising: a fibre-reinforced plastic (FRP) core which includes a first flange, a second flange and a body therebetween, the insulating core defining a bore, wherein the flanges and body are integral and the first flange and the second flange each include a face and a plurality of threaded apertures extending into the face; and a silicone mold which encases the body and includes a series of sheds extending outward from the body, wherein at least one shed includes a perimeter lip.

The invention discloses an integrated fiber-reinforced thermoplastic prepreg tape as well as a preparation method and application thereof, and relates to the technical field of composite materials, the preparation method comprises the following steps: preparing a fiber-reinforced thermoplastic prepreg tape base material to be subjected to hot-press compounding and a wave-absorbing resin film; preheating the surface to be treated of the fiber reinforced thermoplastic prepreg tape base material; and laminating the wave-absorbing resin film on the to-be-treated surface of the preheated fiber-reinforced thermoplastic prepreg tape base material, carrying out hot-pressing compounding, fusing the wave-absorbing resin film with the resin on the to-be-treated surface of the fiber-reinforced thermoplastic prepreg tape base material, and cooling to obtain the integrated fiber-reinforced thermoplastic prepreg tape finished product. On the premise that the original excellent mechanical property of the prepreg tape is hardly influenced, the broadband wave-absorbing function is efficiently and stably integrated, the thermoplastic prepreg tape which is high in surface quality, high in interface bonding and integrated in structure and function is successfully prepared, and the thermoplastic prepreg tape has a wide application prospect in the field of high-end equipment such as aerospace and national defense military industry.

A process for preparing a fiber reinforced thermoplastic is disclosed. The process includes melting a first thermoplastic and a second thermoplastic in a melting zone of a twin-screw processor, feeding at least one continuous fiber downstream of the melting zone into a melted mixture of the first thermoplastic and the second thermoplastic, incorporating the at least one continuous fiber into the melted mixture in a mixing zone, the mixing zone including at least one wave element having a continuous outer surface in the form of a helical wave, and obtaining the fiber reinforced thermoplastic from the twin screw processor. Further, a fiber reinforced thermoplastic composition prepared by an extrusion process the composition having a density between 1.3 g / cc to 1.7 g / cc and a flexural modulus of at least 4000 MPa is disclosed.

The invention belongs to the technical field of concrete, and particularly relates to a concrete composite material for roads and bridges and a preparation method thereof. The concrete comprises the following raw materials: a cementing material system, an aggregate system, a hybrid fiber system, a stable liquid storage lightweight aggregate and an additive system, the cement, the fly ash and the silica fume are used for constructing a cementing material system, the high-strength lightweight aggregate is sucked into the composite internal curing liquid and then is subjected to surface layer liquid stabilizing treatment to obtain the liquid stabilizing type liquid storage lightweight aggregate, and the internal humidity retention capacity and the early-age shrinkage state of the concrete are improved through synergistic cooperation of all the components in the composite internal curing liquid; the steel fiber and the PVA fiber are further combined to construct a multi-scale hybrid fiber reinforcement system, and PVA fiber surface activation treatment, staged water adding wet mixing and liquid stabilizing type liquid storage lightweight aggregate rear-section low-speed adding processes are adopted, so that the fiber dispersion uniformity is improved, the early liquid loss risk of the lightweight aggregate in the mixing stage is reduced, and comprehensive improvement is achieved.

This invention discloses a carbon fiber reinforced self-healing sensing integrated special cable and its preparation method, belonging to the technical field of power cable insulation materials and special cable manufacturing. The cable, from the inside out, includes a conductor, an inner shielding layer, a self-healing insulation layer, a reinforced outer shielding layer, a distributed optical fiber sensing layer, and a sheath layer. The self-healing insulation layer employs a dual dynamic covalent network and a biomimetic intelligent microcapsule composite system to achieve rapid response and multiple repairs. The reinforced outer shielding layer is a semi-conductive ethylene propylene rubber composite material reinforced with short-cut carbon fibers, forming a three-dimensional stress transfer network to enhance mechanical strength. The distributed optical fiber sensing layer enables temperature strain monitoring and damage localization. This invention constructs an integrated protection system combining physical prevention, precise repair, long-term self-healing, and intelligent sensing. The repair response time is no more than 12 hours, the repair rate is no less than 95%, the electrical tree inhibition rate is no less than 90%, and it can be repaired multiple times, adapting to the complex working conditions of high-end equipment.

A roof structure (10) for a vehicle roof is provided. The roof structure comprises structural members (22-1, 22-2, 22-3, 22-4, 22-4) arranged to define all or part of a roof opening corresponding to a roof panel opening (12) in the vehicle roof, the structural members overlapping along at least part of a periphery of the roof opening, the structural members being joined by a form bond, the structural members comprising a fibre-reinforced thermoplastic composite material.

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).

To provide a system and a method for automatically removing a backing paper from an uncured pre-impregnated fiber-reinforced polymer layer.SOLUTION: A method of removing a backing layer 120 from a panel 110 formed from an uncured pre-impregnated fiber-reinforced polymer includes orienting the panel in a backing-separation orientation relative to an edge-engagement tool 112. And, positioning the panel in a backing-separation position B relative to the edge-engagement tool. Further, when the panel is in the backing-separation orientation A and in the backing-separation position, moving the edge-engagement tool such that the backing-engagement features 114 of the edge-engagement tool engage the backing layer at only the edge portion of the backing layer, and only the edge portion 122 of the backing layer separates from the panel. The method further includes the step of moving the backing layer such that the entire backing layer separates from the panel when the edge portion of the backing layer is grasped.SELECTED DRAWING: Figure 13

The invention relates to a method for manufacturing a reinforcement structure for a wind turbine blade (10), the method comprising the steps of: 1) arranging a plurality of strips (63) of fibrous reinforcement material into adjacent stacks (65a, b, c) of strips forming a layered structure (61) having a plurality of fibrous reinforcement layers (67) wherein adjacent ones of the plurality of fibrous reinforcement layers are separated by an intermediate layer (66), according to the invention, at least one separator comb (70) is provided for the resin (1, 2), the at least one separator comb comprising: a base region (71) and a tooth region (73) comprising a plurality of teeth (74) extending from the base region (71), where the plurality of teeth (74) are arranged with a linear array of gaps (79) between adjacent teeth (74), the gaps (79) being configured for allowing the resin to flow from one side of the separator comb (70) to the other side of the separator comb (70), and wherein the plurality of teeth (74) are configured for penetrating the intermediate layer (66), 3) inserting the at least one separating comb (70) between two adjacent stacks (65a, b, c) of strips and penetrating the plurality of intermediate layers (66) with the plurality of teeth (74) such that a plurality of strips (63) of the adjacent stacks (65a, b, c) of strips are separated by the at least one separating comb (70), 4) after inserting the at least one separating comb (70) between the adjacent stacks (65a, b, c) of strips, the method includes (1) optionally moving the layered structure (61) into a desired position, such as into a wind turbine blade shell mold, (5) optionally removing the at least one divider comb (70), and (6) infusing the layered structure with a resin to form a reinforcing structure (78).

The utility model discloses steam turbine high pressure cylinder and medium pressure cylinder shaft seal body outer cylinder body spraying heat insulation material heat preservation structure, including base layer, main heat insulation layer, transition layer, ceramic fiber suture line layer, anchor nail, heat reflection layer, ceramic fiber reinforced layer and protective surface layer. Base layer adopts nanometer silane interface agent to spray on the surface of cylinder body, and main heat insulation layer is nanocrystalline composite heat insulation material, and transition layer is composed of metal base layer, ceramic base layer and organic composite base layer, and the multiple suture lines of ceramic fiber suture line layer are orthogonal grid inlay in the surface of main heat insulation layer, and anchor nail top is equipped with barb structure and root installs elastic silicone rubber gasket, and heat reflection layer is the aluminum foil that etches nanometer level groove and is equipped with wave embossing, and ceramic fiber reinforced layer is sealedly installed paraffin, and protective surface layer adopts organic silicon modified acrylic resin material. The structure has solved the problems of easy cracking of heat insulation layer, easy breaking of heat preservation material, unreasonable shaft seal heat preservation and oil touch flammable etc, and has improved heat preservation performance, structural stability and safety.

The invention relates to a continuous fiber reinforced thermoplastic pressure pipeline and a preparation method thereof, the continuous fiber reinforced thermoplastic pressure pipeline is provided with a core pipe inner layer, a core pipe outer layer, a continuous fiber winding middle layer and a maleic anhydride grafting modification interface layer, the continuous fiber winding middle layer is wound on the surface of the core pipe inner layer, and the maleic anhydride grafting modification interface layer is wound on the surface of the core pipe outer layer. The maleic anhydride grafting modification interface is a transition layer between the continuous fiber winding middle layer and the outer layer of the core pipe, and the continuous fiber winding middle layer comprises continuous fibers and a resin film. The invention has the following beneficial effects: 1, a special prepreg process is adopted, a maleic anhydride grafting interface layer is added, and gradient heating is carried out, so that the problem of fusion and combination of thermoplastic materials is solved, the interlaminar shear strength is 35.1-42.0 MPa, and the internal pressure resistance of the pipeline reaches 15.2-20.1 MPa, which is far higher than that of a traditional winding pipeline by 50-100%; 2, the strength and the cost are balanced through the hybrid design of the continuous fiber winding middle layer, and the cost is reduced by 30%-40% compared with that of a full carbon fiber reinforced pipeline;

The invention provides a welding device and a welding method for a fiber-reinforced thermoplastic composite material, and relates to the technical field of thermoplastic composite material welding. An elastic assembly of a first mounting mechanism is vertically arranged between a bottom plate and a first platform, a first clamping assembly clamps a fiber reinforced thermoplastic composite upper base plate above the first platform, and the first end of the fiber reinforced thermoplastic composite upper base plate is located above the second end of a fiber reinforced thermoplastic composite lower base plate; the first end and the second end jointly clamp the energy guide rib and form a welding area. The welding mechanism is located above the welding area and used for welding the welding area. In the welding process, the elastic assembly can stretch out and draw back in a self-adaptive mode under the action of height change of a welding area or thermal deformation of materials, so that welding inclination angle deviation and deformation generated by a substrate on the fiber-reinforced thermoplastic composite material during welding are compensated, uniform transmission of ultrasonic energy is guaranteed, welding quality fluctuation is greatly reduced, and welding quality is improved.

The utility model belongs to the field of thermoplastic composite material, specifically discloses a paddle. The utility model's paddle uses short fiber reinforced resin as the outer skin, and the core material formed by the cooperation of the inside continuous fiber reinforced unidirectional tape forms the multi-scale fiber reinforced interface at the interface of the outer skin and the core material, improves the high and low temperature impact resistance of the paddle, reduces the risk of low temperature brittle fracture, enhances the interface bonding force of the paddle core material and the outer skin, reduces the influence of interlayer shrinkage stress, reduces the risk such as interface delamination, bulging and paddle deformation, and improves the mounting of the paddle.

The invention relates to the technical field of composite material preparation, and particularly provides a preparation method of a heat shield support, which comprises the following steps: preparing a prepreg by using a carbon fiber reinforced phthalonitrile resin composite material, cutting the prepreg according to the heat shield support to form a net size sample plate material, and manufacturing a forming mold of the heat shield support, a limiting device can be used for limiting a mold closing gap of a split female mold, a net-size sample plate material is laid at the position of a male mold cavity of a forming mold, the forming mold is subjected to cold mold closing, meanwhile, the limiting device is used for limiting the mold closing gap of the split female mold, the forming mold subjected to cold mold closing is heated and subjected to heat preservation, and after the limiting device is detached, heat mold closing operation is conducted on the forming mold. And demolding after curing. According to the method, in the forming process, a cold closing mold limiting device and a pressurization conversion device are additionally arranged, rapid pressurization of a heat closing mold is achieved, the problems that resin viscosity is low and a process window is narrow are solved, and the high-temperature-resistant heat shield support high in size precision and free of internal quality defects is manufactured.

Thermally insulating and moisture and mold resistant subfloors include: a subfloor support structure that includes a subfloor framework comprising joists, beams, furring strips, and / or foam sheets, and optionally an intermediate underlayment comprising sheathing fastened to or applied over the subfloor framework, and lightweight composite underlayment panels fastened to the subfloor support structure. Lightweight composite panels include a foam core and fiber reinforced cementitious (or other protective) layers formed on the foam core surfaces. The subfloor support structure may include sheathing, wherein the lightweight composite panels are fastened to the sheathing to form the subfloor underlayment. In other cases, the subfloor support structure may omit sheathing, wherein the lightweight composite panels are fastened directly to the subfloor framework to form the subfloor underlayment. An optional ceiling structure of a lower floor can be formed by fastening lightweight composite ceiling panels under the subfloor framework of the subfloor.

A battery box according to the present invention includes a battery cover, a battery tray, and a sealing material that is provided in a proximity region in which the battery cover and the battery tray are close to each other and closes a gap between the battery cover and the battery tray. At least one of the battery cover and the battery tray is a fiber-reinforced plastic that includes discontinuous reinforcing fibers and a thermoplastic resin.　The battery box satisfies expression (1).　Expression (1): t1×E>t1+t2. In expression (1), t1 is the thickness of the fiber-reinforced plastic in the proximity region, t2 is the clearance between the battery cover and the battery tray in the proximity region, and E is the expansion coefficient of the thickness of the fiber-reinforced plastic 600 seconds after the surface of the fiber-reinforced plastic is brought into contact with the flame of a burner such that the flame front is at 950°C–1000°C relative to the thickness of the fiber-reinforced plastic before contact with the flame.

This fiber-reinforced resin molded article has a main body part and a rib part. Furthermore, the main body part contains continuous fibers and a thermosetting resin, the rib part is configured from a thermosetting resin and short fibers having a shorter fiber length than the continuous fibers, and the main body part has a region in the in-plane direction thereof that does not contain the short fibers. Thus, it is possible to provide a fiber-reinforced resin molded article that achieves a high reinforcing effect by means of high-strength ribs. Furthermore, in the method for manufacturing the fiber-reinforced resin molded body, the main body part is made of continuous fibers, the rib part is made of fibers derived from an SMC material, and the main body part and the rib part are integrally molded by an RTM method, so that the fiber-reinforced resin molded body reinforced by the defect-free high-strength rib part can be manufactured.

The present application is to provide a method of molding a fiber reinforced resin impeller and a method of molding a fiber reinforced resin gear, which can monitor in real time.In the method of molding the fiber reinforced resin impeller in which fiber reinforced resin is injected from a plurality of gates of a metal mold to mold the fiber reinforced resin impeller which includes a drum and a plurality of blade portions arranged on the outer circumference of the drum, the temperatures of resin are measured by temperature sensors arranged near a plurality of gate portions of the metal mold which correspond to the blade portions; rise timings are measured per one time of temperature waveforms collected by the temperature sensor; and the respective rise timings of the temperature sensors are compared and monitored.

This invention belongs to the field of polymer materials technology and discloses a carbon fiber reinforced polylactic acid composite material and its preparation method. The composite material includes the following raw materials in parts by weight: polylactic acid, PBAT-g-GMA, modified carbon fiber, modified layered double hydroxide, talc, lubricant, and antioxidant. The modified carbon fiber is formed by coating a polydopamine layer on the surface of carbon fiber through the self-polymerization of dopamine, and then grafting catechol, amino-grafted phytic acid, and cage-like polysilsesquioxane onto the surface of the polydopamine layer. The modified layered double hydroxide is formed by intercalating chitosan through electrostatic interaction, and then modifying polyphosphazene with boric acid by grafting ortho-hydroxyl groups on the chitosan chain. This invention uses polylactic acid as the matrix material and adds PBAT-g-GMA blend to improve the brittleness of polylactic acid and enhance the impact strength of the composite material. By combining modified carbon fiber and modified layered double hydroxide, the tensile strength, flexural strength, and rigidity of the composite material are improved, while also endowing the material with excellent heat resistance and flame retardant properties.

A pressure tank (1) for storing gas for installation in a gas-powered vehicle, having a rotationally symmetrical, elongated shape, cylindrical in the central region and closed at both ends with domed end caps, and having a wall enclosing a cavity (2) for storing the gas, as well as a metallic connection piece, a so-called boss (4, 4'), at each of the end caps, wherein the wall comprises a reinforcing layer (6) made of fiber-reinforced plastic and an inner liner (3), wherein a bushing (7, 7') connected to the boss (4, 4') via a screw thread (12) and a pressure ring (8, 8') are provided for sealing, designed such that the pressure ring (8, 8') is pressed against the liner (3) by a spring force and the liner (3) is thereby pressed against the boss (4, 4') in a pressure area (13), the spring force being supported on the bushing (7, 7'). wherein the pressure ring (8,8') itself is designed as a spring element, in particular as a spring ring, so that it can exert the spring force when preloaded by the bushing (7,7').

This invention discloses an impact-resistant photovoltaic encapsulating film, its preparation method, and a photovoltaic module. The photovoltaic encapsulating film comprises multiple layers of unidirectional prepreg tape laminated together. The unidirectional prepreg tape is obtained by melt impregnation of thermoplastic resin and continuous fibers surface-treated with a coupling agent. The thermoplastic resin includes polyolefin elastomer (POE) and POE grafts. During the melt impregnation process, the continuous fibers surface-treated with the coupling agent and the POE grafts undergo a chemical reaction to achieve compatibility. This invention employs a pre-melt impregnation followed by crosslinking technique. The uncrosslinked POE resin has good fluidity and can be fully melt-impregnated with the continuous fibers. Electron beam irradiation post-treatment technology allows the impregnated base film to undergo a crosslinking reaction, resulting in a fiber-reinforced impact-resistant photovoltaic encapsulating film. The film prepared by this invention meets industry technical standards for UV resistance, aging resistance, and impact resistance, while also being low-cost and simple to manufacture, making it widely applicable in the field of lightweight flexible photovoltaic modules.

The present disclosure relates to a wind turbine blade part for a wind turbine blade, the wind turbine blade part comprising a metal mesh layer comprising a plurality of apertures, at least a first fibre-reinforced layer comprising a plurality of first electrically conductive fibres, and a plurality of second electrically conductive fibres. At least a number of the plurality of second electrically conductive fibres extend transversely through the plurality of apertures of the metal mesh layer so as to electrically connect the at least first fibre-reinforced layer with the metal mesh layer.

This display device may comprise: a plurality of display modules, at least some of which include a substrate and a plurality of inorganic light-emitting devices mounted on the substrate; and a frame for supporting the plurality of display modules such that the plurality of display modules are horizontally arranged in an M*N matrix. The frame may comprise: a glass core layer; a first fiber-reinforced layer formed on a first surface of the glass core layer and configured to face the substrates of the plurality of display modules; and a second fiber-reinforced layer formed on a second surface, which is the surface opposite to the first surface of the glass core layer.

The invention relates to the technical field of fiber reinforced resin-based composite materials, and particularly discloses a quantitative characterization method for the wettability of a unidirectional fiber reinforced resin-based prepreg. The method comprises the following steps: cooling a prepreg sample in a refrigerant until the temperature is lower than the glass-transition temperature of a resin matrix by 50 DEG C or above, shooting and imaging by adopting a microscope, identifying and calculating the areas of a resin infiltration area and a resin non-infiltration area through image processing software, and further calculating the infiltration degree of the prepreg. According to the method, the defect that the infiltration degree is judged according to experience in the prior art is overcome, and key parameter support is provided for research and development of the prepreg.