57 results about "Fiber layer" patented technology

The application relates to a sound insulation cushion, a preparation method thereof and a vehicle, and particularly relates to the field of sound insulation materials, and the sound insulation cushion comprises a first fiber layer, a bonding layer and a second fiber layer which are sequentially connected; the first fiber layer comprises first PET fibers, second PET fibers and first superfine fibers; the second fiber layer comprises third PET fibers and second superfine fibers; the fineness of the first PET fibers is 1-3D; the fineness of the second PET fibers is 10-15D; the fineness of the third PET fibers is 1-3D; the fineness of the first superfine fibers is 0.1-0.6D; and the fineness of the second superfine fibers is 0.1-0.6D. The sound insulation cushion provided by the application realizes excellent sound absorption and insulation, light weight, environmental protection and durable comprehensive performance by utilizing the synergistic effect among the fibers of each layer of materials, and solves the pain points of poor sound insulation, poor smell, large weight and easy aging of the existing vehicle sound insulation cushion.

The application discloses a kind of low basis weight high-density fiber material preparation methods, the fiber material includes fiber layer and hot melt powder layer;The fiber layer is filled with superfine powder;Including the following steps: (1) polyvinyl alcohol ultra-short fiber, polyester superfine ultra-short fiber, fine denier ultra-short cellulose fiber are made into mixed slurry, then wet-laid web is made;(2) the wet-laid web is consolidated into intermediate material, then the intermediate material hot water bath is made, and polyvinyl alcohol ultra-short fiber is dissolved;(3) superfine powder is made into suspension, and filled into intermediate material;(4) hot melt powder is made into suspension slurry and coated and fixed.Reduce the unit area mass of material, increase the density of material under low basis weight, utilize the thermal closing pore effect of superfine powder, ensure the safety of battery separator product.Realize the technical requirement of low basis weight, high density and high porosity, solve the problem that existing fiber material cannot meet the use requirement of battery separator.

This utility model belongs to the field of release film technology, and particularly relates to a vertically textured breathable release film, comprising: a vertically textured film layer, the upper surface of which is provided with a plurality of grooves extending along the length direction of the release film, the plurality of grooves being arranged parallel to each other, and the bottom of each groove having a plurality of breathable holes penetrating the vertically textured film layer in a vertical direction, the plurality of breathable holes being arranged along the length direction of the groove; a breathable fiber layer, disposed on the bottom surface of the vertically textured film layer, the breathable fiber layer having a porous structure, the top end of the breathable holes being directly connected to the outside, and the bottom end of the breathable holes being connected to the outside through the porous structure; and a substrate layer, disposed on the bottom surface of the breathable fiber layer. This utility model can further improve the air venting smoothness of the release film, allowing air bubbles between the product and the release film to be quickly expelled even when the product adhesion is high.

This invention provides a composite membrane with a dual-fiber structure, its preparation method, and its applications. The composite membrane with a dual-fiber structure comprises: a first fiber layer and a second fiber layer having a porous structure; the pore size of the first fiber layer is 0.5–15 μm, and the pore size of the second fiber layer is 20–500 μm; the first fiber layer has first fiber filaments with a diameter of 0.1–5 μm; the second fiber layer has second fiber filaments with a diameter of 2–100 μm; the diameter of the first fiber filaments is smaller than the diameter of the second fiber filaments; wherein at least a portion of the first fiber filaments fills the second fiber layer; and the composite membrane also contains an adhesive, which penetrates into the pores of the first and second fiber layers, bonding at least a portion of the first and second fiber filaments together. The composite membrane with the dual-fiber structure of this invention is not prone to delamination and has good mechanical properties.

The present invention relates to a pole material for pole material filtration with pole fibers attached to a support structure, wherein the pole fibers form a pole fiber layer above the support structure.Within the scope of the invention, it is proposed that the ratio of the average height of the pile fiber layer in the filter-active state and the average pile fiber height in the non-filter-active state is greater than 0.55, that in the case of a standard fiber the ratio of the average height of the pile fiber layer in the filter-active state and the average pile fiber height in the non-filter-active state is greater than 0.6, wherein in the case of a microfiber the ratio of the average height of the pile fiber layer in the filter-active state and the average pile fiber height in the non-filter-active state is greater than 0.55, and wherein in the case of an ultrafiber the ratio of the average height of the pile fiber layer in the filter-active state and the average pile fiber height in the non-filter-active state is greater than 0.4.

The present application provides a kind of composite fiber material and its preparation method and use.The composite fiber material includes the fiber surface layer, fiber middle layer and fiber bottom layer arranged in sequence;The fiber surface layer, the fiber bottom layer each independently includes the composition of polypropylene, elastomer, softening agent and slip agent;The fiber middle layer includes the composition of polypropylene, elastomer and slip agent.Through the different components of the composition of the fiber surface layer, fiber middle layer and fiber bottom layer are adjusted, obtain three layers of different physical properties of fiber layer;Through the use of three layers of different physical properties of fiber layer, the composite fiber material obtained is smooth, high softness, good tensile property, and easy to process, meet the requirements of medical and health product field to material toughness, softness, comfort.

The application provides a composite disc spring with a biomimetic spiral layup structure and a preparation method thereof, and belongs to the technical field of spring manufacturing. The disc spring is formed by stacking multiple layers of fiber reinforced composite prepreg along the thickness direction, the main direction of the fibers between adjacent layers is rotated around the center of the disc spring at a set angle layer by layer, forming a biomimetic spiral layup structure arranged periodically along the circumferential direction, which simulates the microstructure of the biological fiber layers in the chelate rod spiral area of mantis shrimps, and the SMA wires treated by a coupling agent are embedded in the inner ring and the middle ring of the fiber prepreg. The biomimetic spiral layup structure is constructed layer by layer in the thickness direction of the composite material, and the SMA wire is locally reinforced in the annular part, so that the disc spring realizes the synergistic improvement of the bearing capacity, energy absorption performance and interlayer failure resistance under the premise of lightweight, thereby improving the overall mechanical properties and service reliability.

This utility model relates to the field of silicone tube technology, specifically a silicone composite tube with a hook-and-braid structure. A silicone composite tube with a hook-and-braid structure includes an inner silicone layer, a braided fiber layer, and an outer silicone layer. The braided fiber layer is formed by hook-and-braiding high-strength fibers into several continuous braided units that surround the outer surface of the inner silicone layer. Adjacent braided units are interconnected to form a stable mesh structure. The outer silicone layer is integrally formed on the surface of the inner silicone layer and covers the braided fiber layer. The hook-and-braid structure makes the connection between the fibers more stable, and under external force, it can better disperse stress, effectively improving the overall strength and tensile strength of the silicone composite tube.

This disclosure describes a filter medium that minimizes the adverse effects of variations in flow rate on filter medium efficiency without a corresponding increase in pressure drop. The filter medium includes a support layer, a continuous fine fiber layer, and an efficiency layer. The continuous fine fiber layer includes a continuous fine fiber that has a diameter of up to 10 micrometers and is located downstream of the efficiency layer.

This invention discloses a core-shell composite thin film material, its preparation method, and its application. The material is composed of composite fibers with a core-shell structure. The core layer of the composite fibers is a PDCPD / SBS mixed nanofiber, whose main components include styrene-butadiene-styrene block copolymer (SBS) and PDCPD. The shell layer of the composite fibers is a polyethersulfone hollow fiber, whose main component is polyethersulfone. By laying the core-shell composite thin film material between carbon fiber layers, two toughening components can be introduced simultaneously, constructing a multi-scale toughening phase-matrix microstructure, ultimately achieving a significant improvement in the interlaminar fracture toughness of the carbon fiber composite material.

The application provides a fiber preform in-dielectric sensor three-dimensional array, a positioning method and application, the fiber preform in-dielectric sensor three-dimensional array includes sensor units, the sensor unit includes a plurality of dielectric sensors arranged along the Z direction, the fiber preform has multiple layers and a single dielectric sensor is arranged between the layers, the dielectric sensor is parallel to the multiple layers of the fiber preform, and a plurality of dielectric sensors in each sensor unit are connected through an insulating fiber bundle along the Z direction.The application realizes high-precision synchronous positioning of sensors between each fiber layer at low cost by connecting the dielectric sensors in series along the Z direction through the insulating fiber bundle, effectively avoids random positioning deviation caused by traditional methods such as manual ruler positioning and projection positioning, and simultaneously realizes the stitching enhancement of the multiple layers of the fiber preform along the Z direction by means of the insulating fiber bundle, thereby significantly improving the interlayer fracture toughness of the composite material containing the sensor.

The utility model discloses a high bearing capacity flat hoisting belt, including hoisting belt main part, one end of hoisting belt main part is provided with first hoist mouth, the other end of hoisting belt main part is provided with second hoist mouth, be provided with first slot and second slot on hoisting belt main part, hoisting belt main part includes fiber layer, one side of fiber layer is provided with first rubber layer, the other side of fiber layer is provided with second rubber layer. The utility model discloses a rubber layer is wrapped fiber layer, and the elasticity of rubber can absorb the puncture kinetic energy of sharp object, reduces the puncture risk, improves the anti -puncture ability of hoisting belt, and when sharp object penetrates the outer layer rubber, will push away the sealant layer and form tiny hole, when sharp object removes, the sealant layer will fill and wrap the tiny hole left by puncture object, and is closely combined with surrounding rubber, forms the seal, repairs hoisting belt, prevents hoisting belt and leads to fiber fracture because of hole, and the length of hoisting belt is adjustable.

The present application belongs to the technical field of slope reinforcement, and discloses an anchor cable device for open-pit mine slope reinforcement and a layout method, which comprises: a composite fiber anchor cable body; an anchoring section design module connected with the end of the anchor cable body and used for designing a threaded surface structure of the anchor cable to increase the contact area with grouting material; a sensing and monitoring module comprising an optical fiber sensor and a temperature sensor embedded in the anchor cable body, and each sensor being connected with the anchoring section design module and used for monitoring the stress, displacement and temperature change of the anchor cable; the sensor module uses the optical fiber sensor to collect signals and analyzes the wavelength shift of light waves based on the light wave reflection principle to evaluate the stress state of the anchor cable. In the present application, the fiber Bragg grating sensor is pre-buried between the carbon fiber layers in the mold forming stage, the radial compressive stress generated by the resin curing shrinkage is used to realize the full circumferential fixation of the sensor, the strain monitoring accuracy is improved, and real-time and reliable anchor cable stress change monitoring data is obtained.

This invention relates to the field of structural strength analysis technology, specifically a method, equipment, medium, and product for strength assessment of hybrid fiber sandwich structures. The method assesses the microscopic heterogeneity of the glass fiber outer layer, functionalized core layer, and carbon fiber inner layer, and assigns differentiated representative volumetric element modeling strategies based on the heterogeneity level. It establishes two-phase representative volumetric elements for the fiber layers and three-phase representative volumetric elements for the functionalized core layer, extracting the equivalent stiffness tensor of each layer through homogenization calculations. Representative volumetric elements are established for the conductive adhesive layer, and the interlaminar equivalent shear stiffness is extracted. The equivalent stiffness of each layer and the interlaminar shear stiffness are assigned to the corresponding ply and interface elements of the macroscopic finite element model to solve for the ply stress under structural service loads. Strength and stability criteria are applied to the glass fiber outer layer, carbon fiber inner layer, and functionalized core layer for strength assessment, obtaining the safety margin and failure location of each ply. This improves the accuracy and reliability of multi-scale mechanical analysis of hybrid fiber sandwich structures.

This invention discloses a siphon evaporator based on electrostatic fiber implantation technology and its preparation method, solving the problems of insufficient capillary force, low evaporation efficiency, and poor stability in traditional evaporators during efficient liquid transport and evaporation. The invention includes the following steps: optimizing liquid siphon performance by chemically modifying the hydrophilicity of the fiber surface; preparing a fiber layer with a micron-sized structure using electrostatic fiber implantation technology; and constructing a siphon channel by combining it with a hydrophilic substrate to achieve rapid self-transport of liquid, forming a highly efficient solar-driven siphon evaporator. This invention endows the evaporator with excellent liquid transport capacity and evaporation efficiency through electrostatic fiber implantation technology, while also possessing stable long-term operating performance, making it widely applicable in fields such as seawater desalination. Furthermore, this invention features a simple process, low cost, and suitability for large-scale production, resulting in significant economic and environmental benefits.

The application discloses a kind of directional reinforced puncture fabric and its forming method, comprising: step 1: according to the design of fabric directional reinforcement requirement, unit layer includes at least one fiber layer, and the unit layer formed by at least one fiber layer is distributed with fiber in multiple directions, and the volume content ratio of fiber distributed in multiple directions is not all same;Step 2: the fiber layer in the first layer unit layer is sequentially laid in the puncture device and puncture pressurization setting is carried out;Step 3: the fiber layer of remaining unit layer is sequentially carried out puncture pressurization setting according to step 2 until reaching predetermined height;Step 4: the position of puncture needle is replaced by Z direction fiber bundle one by one, and finally three-dimensional fabric is formed.The application utilizes the fiber type, fiber structure, organization structure and fiber layer combination design of fiber layer, realizes the limit promotion of fabric specified single or multiple direction fiber volume content or performance, forms directional reinforced puncture fabric to meet the requirement of material directional high performance.

The utility model discloses a kind of automatic fiber layering devices, including layering structure, mechanical arm, discharging roller, tension adjusting bin, heating device, transmission roller, control device and compaction bonding mechanism, wherein, compaction bonding mechanism includes electric telescopic rod, flexible rotary shaft, the cylindrical connected by sliding block sliding slot, limit frame and wear-resistant skin layer, when working, mechanical arm drives device to move, discharging roller releases fiber band to adjust tension by tension adjusting bin, then by heating device, transmission roller is hauled to mould surface, compaction stage, electric telescopic rod pushes flexible rotary shaft to bend, cylindrical linkage forms camber, limit frame restricts wear-resistant skin layer transverse movement, so that it only deforms along up and down direction. Through the above structure, the device solves the problems such as poor curved surface adaptation, unstable tension control, weak high-temperature adaptability and other problems of traditional layering equipment, realizes high-precision curved surface bonding, dynamic tension adjustment and automatic continuous operation, and is suitable for a variety of fiber materials.

This invention belongs to the field of composite material technology, specifically disclosing a fiber-gradient structure reinforced thermosetting resin composite hollow sphere and its preparation method. The hollow sphere comprises a core material and a composite shell layer covering the outer periphery of the core material. The composite shell layer is composed of stacked thermosetting resin / reinforcing fiber layers, and includes at least two thermosetting resin / reinforcing fiber layers. The fiber length in the thermosetting resin / reinforcing fiber layers increases in a gradient from the inner to the outer layer along the radial direction of the hollow sphere. The composite shell layer comprises, by mass, 100 parts thermosetting resin, 20-40 parts diluent, 1-5 parts silane coupling agent, 20-100 parts curing agent, 1-5 parts accelerator, and 50-300 parts reinforcing fiber. The mass ratio of the core material to a single thermosetting resin layer is 1:1-1.5. The hollow sphere has a diameter of 6-60 mm, a wall thickness of 0.3-5.0 mm, and a density of 0.2-0.5 g / cm³. 3 The static water pressure is 5-60 MPa.

This utility model discloses a high-temperature resistant and heat-resistant plastic cup, including a cup body. A screw sleeve is fixedly connected to the bottom of the cup body, and a screw rod is threaded onto the inner wall of the screw sleeve. A heat-resistant outer shell is fitted onto the surface of the cup body. The bottom of the inner surface of the heat-resistant outer shell is fixedly connected to the bottom of the screw rod. A heat-resistant layer is fixedly connected to the inner wall of the heat-resistant outer shell. The heat-resistant layer includes a glass fiber layer fixedly connected to the inner wall of the heat-resistant outer shell, a rock wool layer fixedly connected to the outer surface of the glass fiber layer, and an aluminum silicate layer fixedly connected to the outer surface of the rock wool layer. This utility model first blocks heat conduction through the cavity between the cup body and the heat-resistant outer shell, and then uses the glass fiber layer, rock wool layer, and aluminum silicate layer to absorb and block heat, preventing heat conduction to the outer surface of the heat-resistant outer shell. This effectively blocks heat, thus achieving a good high-temperature resistant and heat-resistant effect.

A reflection plate (100) comprises: a mirror layer (110) provided with a first surface (111) that reflects light; and a fiber layer (120) disposed on a second surface (112) of the mirror layer (110), the second surface (112) being opposite the first surface (111).

The application provides a kind of warping compensation control composite moulding forming method and device, comprising: based on fiber layer, product geometry, mould geometry and moulding forming process to establish digital twin model, calculate product warping size deviation and residual stress;In the model, add compensation soft diaphragm, control the forming pressure of different areas of product by designing the thickness of different areas of diaphragm, improve the size accuracy of product;The diaphragm of different thickness distribution of the optimization is laid on the surface of the preformed composite blank;The forming preform containing diaphragm is placed into the component forming mould, and after heating and pressurizing, it is cooled to integrally form composite component;Verify the component forming precision improvement effect, and feedback back to digital twin model.The application has the characteristics of easy control, low cost and quick modification, the soft diaphragm used not only can compensate the size accuracy of product, but also has the effect of easy demoulding, improving fiber body and surface quality.

A carbon fiber ultra-long and wide-width pre-oxidation furnace includes a furnace body with an internal cavity for multiple layers of fibers. At both the inlet and outlet ends of the furnace body are inlets and outlets for fiber hot air sealing devices. The inlets and outlets of the fiber hot air sealing devices have running channels with the same number of fiber layers. These running channels are connected to the furnace cavity. The furnace body is a wide-width furnace body, consisting of several sections from the fiber hot air sealing device inlet to the fiber hot air sealing device outlet. Flexible expansion joints connect adjacent sections to compensate for thermal expansion along the length. The furnace is equipped with several sets of cleaning devices, several sets of heating zones, and several sets of circulating fans. The ultra-long and wide-width design significantly increases the feed rate and production capacity. The design employs vertical airflow distribution and high circulating wind speed, providing uniform temperature in both the horizontal and vertical directions and high output.

The application provides a light and thin carbon fiber support layer for a flexible folding screen and a preparation method thereof, and belongs to the technical field of carbon fiber layered materials, and comprises the following steps: first, preparing polymer-coated gallium indium tin powder; then, preparing a disulfide bond type epoxy acrylate premix liquid, adding the polymer-coated gallium indium tin powder, stirring, ultrasonic dispersion, vacuum degassing, and obtaining a mixed impregnation liquid; immersing a carbon fiber layer into the mixed impregnation liquid, taking out the liquid, pre-drying, and obtaining a pre-impregnated reinforcing layer; taking a PI release film as a bearing base film, sequentially laying the carbon fiber layer, the pre-impregnated reinforcing layer and the carbon fiber layer, rolling, curing, hot pressing, and obtaining the light and thin carbon fiber support layer. The application can improve the interlayer composite stability and repeated folding durability while keeping the support layer light and thin.

This invention provides a leading-edge protective film for wind turbine blades, a method for preparing the leading-edge protective film, a wind turbine blade, and a wind turbine generator set. The leading-edge protective film comprises: a protective paint layer having a first surface and a second surface opposite to each other in the thickness direction; and a fiber layer including a first portion and a second portion connected to each other in the thickness direction, wherein the first portion of the fiber layer is impregnated into the protective paint layer from the first surface, and the second portion of the fiber layer is exposed to the outside from the first surface. According to this invention, by impregnating a portion of the fiber layer in the protective paint layer and exposing another portion to the outside of the protective paint layer, using the fiber layer as an adhesive interface, the problem of low adhesion strength between the protective paint and the leading edge of the blade is solved, resulting in excellent adhesion performance and avoiding the risk of the leading-edge protective material detaching from the wind farm.

The present application provides a kind of multi-light material composite assemblable ductile buoyancy mooring chain.The single ring of the mooring chain is composed of polyimide resin core mold inner layer containing hollow beads and resin-based carbon fiber traction-resistant outer layer, and the core mold is composed of detachable single chain ring core mold and complete single chain ring core mold spaced jointing to ensure uninterrupted winding of carbon fiber on single ring body and realize multi-ring assembly extension.The detachable single chain ring is connected by mortise and tenon structure and embedded in dowel for fixing, and the complete single chain ring is a complete long circular ring structure.The proposed composite buoyancy mooring chain can be designed based on the size of core mold and carbon fiber layer, so that the overall density is less than the density of seawater, and it can be in floating state on the sea surface.

An embodiment of the present invention provides a wire for a fiber-reinforced plastic stranded cable, a stranded cable comprising the wire, and an apparatus and method for manufacturing the wire, the wire comprising: a main body including a fiber bundle impregnated with a resin; and a thermoplastic fiber layer formed to surround the outer circumferential surface of the main body, wherein the resin of the main body is semi-cured by heat treatment, and the thermoplastic fiber layer is cut to prevent the semi-cured resin of the main body from passing through the thermoplastic fiber layer when cooled after the heat treatment. An effect of the present invention is that it is capable of providing a wire for a fiber-reinforced plastic stranded cable, a stranded cable comprising the wire, and an apparatus and method for manufacturing the wire, wherein the wire has not only excellent tensile strength but also excellent flexibility and transportability, without performing an unstock process that forcibly separates wires from each other to enable a core wire, a side wire, and side wires to move independently without being bonded to each other after a thermosetting resin is cured by the heat treatment in the stranded cable.

To provide a technique in which a formed fiber layer is hardly peeled off even when a cement slurry with a high water-cement ratio, a polymer emulsion or a slurry obtained by mixing an alkali silicate, inorganic powder and water is used as an aggregation material and is sprayed on a surface of a substrate together with a granular fiber to form the fiber layer in a predetermined thickness.MEANS: A technique includes: a step A of spraying a granular fiber together with an aggregation material onto a substrate to form a fiber layer having a predetermined thickness, attaching the granular fiber to a substrate under same conditions as those of a first substrate on which it is confirmed that the formed fiber layer does not fall off, using the aggregation material or liquid containing a main component of the aggregation material, and measuring adhesive force (P1) between the granular fiber and the substrate under the same conditions; a step B of sticking the granular fiber to a second substrate with the aggregation material or the liquid of the main component of the aggregation material and measuring adhesion force (P2) between the granular fiber and the second substrate at that time; and a step C of confirming that the P2 is equal to or larger than the P1.SELECTED DRAWING: None