64 results about "Textile composite" patented technology

The invention discloses a waterborne polyurethane composite material as well as a preparation method and application thereof. According to the innovative material, PTMG / PCDL-WPU is taken as basic resin, and silicon dioxide coated titanium dioxide (SiO2 and TiO2) nanoparticles are introduced in a physical blending manner, so that the composite waterborne polyurethane material with excellent performance is constructed. The compounded WPU shows remarkably enhanced mechanical properties and waterproof performance, specifically, the tensile strength is 47MPa, the elongation at break is 780%, and the water absorption is 16%. The developed WPU can significantly improve the hydrostatic pressure resistance of fabrics, provides a new solution for functional modification and structural enhancement of polyamide / polyester flexible textile composite materials, and has important industrial application prospects.

The tail end sewing device structurally comprises a shell, a sewing groove and a fixing base, the sewing groove is formed in the end face of the shell, a guide structure and a transmission device are arranged in front of and behind the sewing groove respectively, a penetrating hole is formed in the middle of the sewing groove, and the fixing base is fixed to the top of the shell. The shell is connected with a flange at the tail end of the manipulator, a transmission fluted disc is arranged in the shell and is in meshed connection with a first servo motor, a limiting pipe is fixedly installed at the right position in the shell, a needle seat is installed on the end face of the limiting pipe, and the bottom of the needle seat is connected with a suture needle in a clamped mode. The second servo motor is meshed with the gear to drive the transmission roller to rotate and make contact with the end face of the prefabricated part to drive the transmission roller to move, then the prefabricated part is supported by the driven wheel to move, the situation that the prefabricated part deviates leftwards and rightwards in the sewing process is prevented, the situation that sewing of the prefabricated part deviates is avoided, and the quality of produced products is improved.

The invention provides a textile composite material impact energy absorption simulation method, system and device and a medium, and the method comprises the steps: carrying out the connected domain analysis of a tomography image, and determining the equivalent diameter distribution characteristics of pore defects in a textile composite material; performing stochastic simulation based on the equivalent diameter distribution characteristics in combination with a mesoscopic geometric model of the textile composite material to obtain stochastic pore space distribution of the textile composite material in the resin enrichment area; geometric difference is carried out on the random pore space distribution and the mesoscopic geometric model, and then a mesoscopic finite element model containing pore defects is constructed; and endowing the mesoscopic finite element model with material attributes and carrying out explicit kinetic analysis on impact load, and further determining the impact energy absorption performance of the textile composite material prepared in the batch according to an analysis result. By adopting the scheme of the invention, systematic deviation of impact energy absorption performance prediction caused by model idealization can be reduced.

The invention relates to the technical field of composite fiber preparation, and particularly discloses an anti-pilling textile composite fiber material and a preparation method thereof.The anti-pilling textile composite fiber material is prepared through the following steps that S1, functional fibers are prepared; s2, preparing modified covering yarn; s3, twisting and yarn manufacturing; s4, preparing a composite fiber material; according to the heat-resistant anti-pilling functional fiber, the heat-resistant anti-pilling component is added into the functional fiber, and a flexible long alkyl chain containing unsaturated double bonds on the heat-resistant anti-pilling component can be chemically crosslinked with sulfydryl on the modified sodium alginate to form a three-dimensional network structure; a rigid benzene ring structure contained in the functional fiber and a rigid pyrimidine ring structure contained in the modified sodium alginate can generate pi-pi interaction, and through the combined action of the rigid benzene ring structure and the rigid pyrimidine ring structure, the anti-pilling property, the ultraviolet resistance and the heat resistance of the composite fiber material are improved.

The molded article of the present invention comprises: a textile sheet formed by stacking two or more thermoplastic continuous fiber-reinforced textile composites; and a non-woven fabric heated and compressed to be stacked on at least one face of the fabric sheet, in which the thermoplastic continuous fiber-reinforced textile composite is woven using a glass fiber composite as a warp yarn and a weft yarn, the glass fiber composite includes about 100 parts by weight of a glass fiber, about 35 to about 72 parts by weight of a polypropylene resin, about 12 to about 35 parts by weight of a piperazine pyrophosphate, about 1 to about 20 parts by weight of a phosphazene compound, and about 1 to about 20 parts by weight of a zeolite. The glass fiber composite has excellent light weight, flame resistance, impact resistance, hardness, external characteristics and the like.

The application discloses an ultra-high molecular weight polyethylene non-woven fabric modified based on liquid metal and MXene and a preparation method thereof, and belongs to the technical field of protective functional textile composite materials. After the ultra-high molecular weight polyethylene non-woven fabric is pretreated through hydrophilic modification, a composite coating material composed of magnetic liquid metal formed by iron powder and liquid metal gallium and MXene is sprayed, then the liquid metal is spread between fibers and bridges MXene and iron powder through rolling treatment, a continuous conductive / magnetic double network is formed, a packaging layer is coated at last, and the ultra-high molecular weight polyethylene non-woven fabric modified based on liquid metal and MXene is obtained. The finishing process of spraying combined with rolling is simple, low in cost and easy to be industrialized; the prepared ultra-high molecular weight polyethylene non-woven fabric modified based on liquid metal and MXene has an electromagnetic shielding efficiency greater than 35 dB in the X wave band, meanwhile, excellent characteristics such as flexibility and wear resistance are maintained, and the unification of light weight and high performance is realized.

The application discloses a non-contact flexible electrocardiosignal collection pad and a preparation method and design method thereof, relates to the technical field of vital sign monitoring and functional textile composite processing, and the collection pad comprises a collection area, a connecting area, an insulating edge and a conductive edge sewing line; the collection area is provided with a top right leg driving layer, a first layer of internal insulating layer, a fabric wire layer, a second layer of internal insulating layer and a bottom right leg driving layer from top to bottom; the top right leg driving layer is provided with an avoidance window corresponding to a collection electrode, the collection electrode is embedded in the window, the upper surface of the collection electrode faces the human body side, the lower end of the collection electrode penetrates the first layer of insulating layer and connects the wire layer, and the window is provided with a collection electrode insulating layer to realize electrical isolation; the fabric wire layer is clamped between the two insulating layers; the conductive edge sewing line conducts the upper and lower right leg driving layers and forms a shielding structure surrounding the collection area; the connecting area is provided with a fabric golden finger module and is communicated with the collection electrode through the wire layer. The application can reduce electromagnetic and environmental interference, improve comfort, interlayer stability and signal collection stability.

The invention belongs to the field of textile composite materials, and provides a PLA and regenerated PET composite moisture-permeable waterproof three-layer fabric. The stereo composite polylactic acid microporous membrane is used as the middle layer, the regenerated polyethylene glycol terephthalate fiber fabric is used as the outer layer, the PLA or PLA / rPET knitted fabric is used as the inner layer, and the three-layer structure is formed by bonding through the reversible ester exchange copolyester hot melt adhesive layer, so that the cooperation and unification of high hydrostatic pressure shielding and high water vapor permeability are realized; wherein the mass fraction of poly (L-lactic acid) and poly (D-lactic acid) of the stereocomplex polylactic acid film is 48-52% respectively, the maximum penetrable pore diameter of micropores is 20-80 nm, and the reversible ester exchange hot melt adhesive has a low-viscosity flow window during processing and keeps interface stability during the service period; the problems that a traditional moisture-permeable waterproof fabric is low in bio-based content, peel strength is reduced after damp-heat aging, wearing noise is large and comfort is poor due to a high-modulus structure and the like are solved, and the moisture-permeable waterproof fabric has wide application value.

The invention relates to a wound treatment product which can be cut to size and which comprises a liquid-permeable layer with a nonwoven material, a protective layer with a nonwoven material, and a swelling layer. The swelling layer contains an aqueous salt solution and superabsorbent fibers, said superabsorbent fibers being provided in a textile composite comprising at least one type of support fiber. The wound treatment product can optionally have a backing on the upper face and a silicone-containing atraumatic wound contact layer on the lower face. The wound treatment product makes do without seams and is characterized by its excellent pressure stability.

This invention discloses a method for preparing an ultralightweight, highly abrasion-resistant TPU / textile composite material for bags and luggage, comprising the following steps: weaving a mesh base fabric using a warp knitting machine; activating and pretreating the surface of a TPU film; coating an adhesive onto the activated surface of the TPU film obtained in the previous step and drying it; hot-pressing the mesh base fabric and the TPU film at multiple points to obtain the TPU / textile composite material; and finishing and shaping the TPU / textile composite material obtained in the previous step. The advantages of this invention include: the prepared composite material possesses multiple advantages such as ultralight weight, high abrasion resistance, softness, strong interface, breathability, and environmental friendliness. It can be widely used in the fabric preparation of various bag and luggage products such as high-end trolley cases, backpacks, outdoor bags, and briefcases, and can also be extended to outdoor products, protective equipment, and other fields, possessing significant industrial application value and market prospects.

The present invention relates to the technical field of model construction, and specifically discloses a noise reduction model for a multi-layer flexible textile composite material. By determining the key physical parameters affecting the noise reduction performance of the composite material and selecting a suitable composite material structure as the basis; establishing a noise reduction mathematical model, aiming at low-frequency noise, quantifying the influence of the physical parameters of the composite material on the noise absorption and isolation effects; analyzing the physical parameters in the noise reduction model; establishing an optimized noise reduction model, obtaining the optimal combination of physical parameters, and realizing the suppression of low-frequency noise without increasing the thickness of the composite material by coordinating the relationships of the parameters.

The invention relates to the technical field of high-performance textile composite materials, in particular to a novel anti-wear curtain fabric and a preparation method thereof. The preparation method comprises the following steps: carrying out surface modification on nano aluminum oxide by virtue of a biomimetic mineralization technology, and constructing an organic-inorganic hybrid layer on the surface of nano particles by virtue of a dopamine-alginic acid composite system; adopting a supramolecular assembly technology to enable calixarene derivatives and cyanate ester resin to form a host-guest compound system; a silicon carbide fiber reinforced composite material base material is prepared through innovative processes such as photo-thermal dual curing and electric field assisted hot-pressing curing; and finally, constructing a gradient ceramic protection system on the surface of the base material by adopting surface treatment technologies such as a laser micro-texturing technology, a magnetron sputtering and plasma spraying composite technology, plasma enhanced chemical vapor deposition and the like. The prepared curtain fabric has the advantages of wear resistance, flame retardance and the like, and the technical problems that a traditional curtain fabric is poor in wear resistance, insufficient in flame retardance and short in service life are solved.

The invention discloses a preparation method of a multifunctional gradient impedance textile composite sound absorption structure, and belongs to the technical field of sound absorption and noise reduction materials. The multifunctional gradient impedance textile composite sound absorption structure comprises at least two micro-perforated film fabric layers and at least two non-woven fabric layers, wherein the material of the micro-perforated film fabric layer comprises a fabric provided with a sound absorption coating. The multifunctional gradient impedance textile composite sound absorption structure has the advantages of being antibacterial, mildew-proof, flame-retardant, efficient in sound absorption and the like, and wide-range and efficient absorption of medium and low frequency noise can be achieved.

The present invention provides an orthogonal three-dimensional woven preform containing bifurcations and a weaving method thereof, relating to the technical field of textile composite materials. The present invention designs and weaves an orthogonal three-dimensional woven preform containing bifurcations to achieve near-net-shape manufacturing of bifurcated structural parts; by designing the weft yarn path, the out-of-plane strength (in the direction in which each branch extends) and lateral strength of the orthogonal three-dimensional woven composite material containing bifurcations can be improved, and the total weight can be reduced. The weaving method of the present invention is simple to operate, and the obtained orthogonal three-dimensional woven preform containing bifurcations has stable quality.

This invention discloses a method for treating the joints of GRC decorative panels, belonging to the field of building construction technology. The method includes base layer pretreatment, integrated sealing and buffering joint filling, interface construction, and composite reinforcement layer construction. Specifically, an XPS extruded polystyrene strip is placed and retained at the bottom of the joint to form a buffer layer, while M15 cement mortar mixed with a micro-expansion agent is filled in. After the joint filling layer dries, alloy joint adhesive is alternately applied and woven geotextile is pasted to form a three-adhesive, two-textile composite reinforcement layer, with each layer extending at least 5cm to both sides. This invention constructs a gradient deformation coordination structure combining a rigid joint filling layer, an elastic buffer layer, and a flexible reinforcement layer, effectively solving the problems of cracking and detachment in traditional joints. It has advantages such as excellent crack resistance, simple construction, and good durability, and is suitable for joint treatment of GRC decorative panels in prefabricated buildings.

The invention relates to a bio-based high-adhesion hot melt adhesive as well as a preparation method and application thereof, and belongs to the technical field of adhesives. The hot melt adhesive is prepared by taking bio-based matrix resin compounded by castor oil-based polyamide and bio-based PBAT as a core, matching with a bio-based tackifier and a plasticizer, and supplementing with a cross-linking agent, an antioxidant, a compatibility regulator and a modified inorganic reinforcing filler. The preparation method comprises the steps of raw material drying, filler modification, melt mixing by a twin-screw extruder, cross-linking reaction, filler dispersion, extrusion pelletizing and the like. The bio-based hot melt adhesive provided by the invention solves the problems of insufficient bonding strength, poor heat resistance, poor storage stability and the like of the traditional bio-based hot melt adhesive, has environmental protection property and excellent comprehensive performance, can be applied to the fields of wood bonding, packaging and printing, textile compounding and electronic component packaging, and can complete bonding after being heated, melted and pressurized during use.

The invention relates to the technical field of textile composite materials and printing, and provides a multi-layer composite printed carpet based on a thermal dye sublimation transfer printing and environment-friendly composite process, which sequentially comprises a printed surface layer, a printed layer, a printed layer and a printed layer from top to bottom, the printed surface layer is composed of polyester fiber short plush with the mass per unit area being 150-500g, and the printed layer is composed of polyester fiber short plush and polyester fiber short plush; wherein the polyester fibers are hydrophobic polyester fibers suitable for heat sublimation transfer printing, and the fluff height of the polyester fibers is 2-5 mm; and the buffer stable layer is made of heat-resistant high-rebound polyurethane sponge with the density of 20-70D and the thickness of 3-25mm. The defects in the prior art are overcome, the design is reasonable, the structure is compact, the thermal dye sublimation transfer printing technology suitable for hydrophobic polyester fibers is adopted, dye molecules can enter the fibers, patterns are bright in color, the resolution ratio is high, abrasion resistance and washing fastness are excellent, and the problem that the front face and the back face are transparent is solved. The core links (transfer printing does not need water washing, and compounding adopts water-based glue or flame compounding) of the whole production process reduce wastewater, VOC emission and energy consumption, and better meet the environment-friendly production requirements.

The present invention relates to a process for production of water-absorbing textile composite materials comprising the use of a polymeric composite solution and a textile material (non-woven, woven and other). The textile material is impregnated with the composite polymeric solution, which after thermal treatment is cross-linked in situ. More particularly, the present invention relates to an absorbent textile composite article comprising textile fibers and a polymers network interpenetrating the textile fibers, the polymers network comprising natural polymer crosslinked to synthetic polymer in the absence of non-polymeric crosslinking agent. The textile composite article exhibits excellent absorbency of aqueous media such as food liquids, cosmetic liquids, pharmaceutical liquids or human body secretions.

Heatable cover for warming the feet of a user with shoes on, characterized in that it is formed by a textile composite material comprising an inner textile layer and an outer textile layer, between which a functional layer is arranged, wherein the inner textile layer is made of a fleece-like textile with a basis weight of 50 to 300 g / m² 2 , the outer textile layer is made of a knitted or woven fabric with a basis weight of 50 to 400 g / m² 2 and the functional layer is formed by a microporous and simultaneously hydrophobic membrane with a basis weight of 5 to 50 g / m² 2 is formed, wherein at least one pocket is formed on the outside of the casing in which a battery is stored, and at least one pocket is formed on the inside of the casing in which an electric heating element is stored, wherein the electric heating element and the battery have means for connecting to each other.

The application relates to a large-size special-shaped structure carbon fiber composite material integrated preparation method and belongs to the technical field of textile composites. The large-size special-shaped structure carbon fiber composite material integrated preparation method comprises the following steps: mixing resin powder and a polydopamine solution to form a stable prepreg solution; uniformly attaching the prepreg solution to the surface of carbon fiber tows, collecting the pre-impregnated carbon fibers in an ordered manner after impregnation; taking the collected pre-impregnated carbon fibers as core yarns, selecting hot melt yarns as wrapping yarns, and tightly and uniformly wrapping the hot melt yarns on the carbon fibers through a knitting machine; placing the knitted composite yarns into an oven for uniform heating, so that the surface hot melt yarns are softened to form a soft film for wrapping the carbon fibers; processing the softened composite yarns by using a knitting technology to prepare a large-size special-shaped structure part; and curing and cooling the structure part to form a large-size special-shaped structure carbon fiber composite material. The application can quickly prepare a large-size special-shaped structure carbon fiber composite material.

The invention discloses a gel state cooperative control method and system for gradient compounding of a multi-layer functional coating of a protective fabric, and belongs to the technical field of high-performance textile composite materials. The invention aims to solve the problems of low interlayer bonding strength and easy function loss in the traditional multilayer coating process. The core of the method is as follows: each functional coating is accurately controlled in a specific'gel state 'through online monitoring and closed-loop regulation; based on the theory, sequentially coating n layers of functional coatings, and controlling the overall curing degree Si of i (i = 1, 2,..., n-1) layers of coating systems to be in a target interval of (55 + 5i)%-(70 + 5i)% step by step to form a gradient gel state complex; then carrying out real-time micro-distance compaction and air exhausting in a gold window within 2-5 minutes; and finally, through temperature and linear pressure synergistically increasing progressive hot-pressing compounding and final synergistic curing, molecular chains are promoted to be fully and mutually diffused at an interface, and a high-strength fuzzy interface is formed.

Cable protection device for door openings, consisting of a flexible protective channel (1) in shock-absorbing textile composite material, through which cables (3) can be passed.

The invention belongs to the technical field of functional fiber materials and textile composite materials, and discloses a preparation method of hydroxyapatite far-infrared functional fibers, which comprises the following steps: by taking animal bones or shells as raw materials, calcining at 800-1200 DEG C and carrying out wet superfine grinding to prepare natural hydroxyapatite (HAp) superfine particles with the particle size of 50-200 nm; the fiber is endowed with double functions of far infrared emission and antibiosis by taking the fiber as a single functional component. The preparation method comprises the following steps: mixing hydroxyapatite with polyester chips and polylactic acid or polyvinyl alcohol resin at a high speed according to a ratio of 5-20 wt%, and carrying out melt blending granulation in a twin-screw extruder at 160-280 DEG C to obtain hydroxyapatite / polymer composite particles; then drying, melt spinning, cooling setting, stretching and heat setting are conducted on the particles, and the far-infrared antibacterial functional fiber with good interface dispersity and mechanical property is prepared.

The invention relates to a wound treatment product which can be cut to size and which comprises a wound contact layer, a first liquid-permeable layer with a nonwoven material, and a second liquid-permeable layer with a nonwoven material. Between the first and second layer is a swelling layer, and the swelling layer contains an aqueous salt solution and superabsorbent fibers, said superabsorbent fibers being provided in a textile composite comprising at least one type of support fiber. The wound treatment product makes do without seams and is characterized by its excellent pressure stability.

The application discloses a kind of based on weaving forming textile composite mechanical property detection method and system, the textile composite mechanical property detection method is modeled to virtual yarn by truss unit, and virtual yarn is combined into yarn interlacing model according to the interlacing rule of warp and weft in three-dimensional angle interlocking woven fabric;Considering the influence of four parameters, warp tension displacement, warp tension load, friction coefficient and fiber elastic modulus in the weaving process on the yarn path and cross section of the fabric forming process, accurate modeling of the three-dimensional angle interlocking fabric weaving forming process is realized, the three-dimensional angle interlocking woven fabric preform model is obtained, and the precision of textile composite preform structure design and manufacturing is improved;Based on three-dimensional angle interlocking woven fabric preform model, the mechanical properties of textile composite are detected, and the accuracy of textile composite mechanical property detection is increased.

The present disclosure generally relates to polymer-aerogel / fiber composite materials, polymer-aerogel / textile composite materials, and systems and methods for producing them. The gel material can comprise, in some embodiments, a network of polymer. The fiber and / or textile material can comprise at least one of any natural, synthetic, and / or mineral fiber. In some cases, certain combinations of materials, solvents, and / or processing steps may be synergistically employed so as to enable manufacture of materials suitable for use in apparel, soft goods, and other consumer applications which may benefit from the properties of a polymer-aerogel / fiber composite and / or the polymer-aerogel / textile composite.

This invention relates to a one-piece molded Whipple's Shield impact protection structure textile composite material and its preparation method. The product comprises, from top to bottom, an impact-facing fabric layer, a spacer fabric layer, and a back fabric layer. The impact-facing fabric layer is a single-layer or multi-layer fabric, with adjacent layers bonded together by resin. The spacer fabric layer is a hollow multi-layer structure consisting of a top layer, a bottom layer, and a spacer layer. The back fabric layer is also a multi-layer fabric, with adjacent layers bonded together by resin. The spaces between the impact-facing fabric layer and the top layer of the spacer fabric layer, as well as between the bottom layer of the spacer fabric layer and the back fabric layer, are filled with resin. Resin is impregnated between the back fabric layer, the spacer fabric layer, and the impact-facing fabric layer using a vacuum-assisted resin transfer molding process. After impregnation, the vacuum is removed, and the product is cured and demolded to obtain the final product. This invention features a simple preparation method; the product has high energy absorption, low specific gravity, high damage tolerance, and good impact protection performance.

The present application relates to a kind of fixture for weaving preform surface tensile property test, including two oppositely arranged U-shaped fixed frame, the side plate of the fixed frame is fixedly installed connecting rod, two symmetrically arranged clamping blocks are movably inserted on the connecting rod;The side of the clamping block towards textile composite preform sample is provided with clamping surface, and the other side is pressure surface;Clamping surface is the inclined plane inclined to loading direction, the outside of pressure surface is provided with pressure plate and bears the pressure of pressure plate, so as to fix the position of textile composite preform sample;Pressure plate and side plate are positioned and fixed by movable connecting device, the position of pressure plate is adjusted by movable connecting device;It also includes the test method using the above-mentioned fixture.The present application can be used for testing the surface tensile property of textile composite preform and its composite material with higher surface tensile strength by mechanical clamping mode to fix sample, and the premature failure of sample caused by too small clamping force can be effectively avoided.

A textile composite is disclosed, including a textile material; a plurality of linkers covalently bonded to the textile material; a layer of nanostructures covalently bonded to the plurality of linkers; and a coating covalently bonded to the layer of nanostructures; wherein the layer of nanostructures is disposed between the textile material and the coating. A method of making such textile composite is also disclosed.