346 results about "Hybrid fibre" patented technology

The subject matter disclosed herein relates generally to the production of a predetermined ratio of multicomponent fibers in combination with monocomponent fibers or other multicomponent fibers, preferably through a spunbonding process. After extrusion, these fibers can produce a fiber network that is subsequently bonded to produce a nonwoven fabric comprising multiple types of fibers. The multicomponent fibers within the network may be processed to remove one component by dissolution or to split the individual components into separate fibers. As a result, the fabric will be comprised of fibers with a range of diameters (micro- or nano-denier fibers as well as higher denier fibers) such that the fibers will not pack as tightly as in a homogeneous nonwoven fabric produced from one type of monocomponent or multicomponent fiber. The present invention additionally relates to methods for producing nonwoven fabrics with increased loft, breathability, strength, compressive properties, and filtration efficiency.

A hybrid, wide angle imaging system combines high sensitivity superposition arrays with a high resolution apposition array to generate distortion free images with an infinite depth of field. A conformal, superposition array of Keplerian telescope objectives focuses multiple apertures of light through the tubes of a louver baffle. The baffle tubes are terminated by field stops that separate the focused light into inverted, intermediate sub-images. A superposition array of field lenses, positioned immediately after the field stops, reverses the angles of the light beams. An apposition array of erector lenses, linked optically to the superposition arrays and field stops, refocuses and adjoins the beams into a single, upright image. The upright image is formed on the convex surface of a fiber optic imaging taper, which transfers the image to the flat bottom of the taper where it can be viewed through an eyepiece or digitized by a detector array.

Apparatus and method for suppressing modal instabilities (MI) in fiber-amplifier systems. In some embodiments, thermal effects drive the MI process, and in some such embodiments, the present invention provides a plurality of options for mitigating these thermal effects. In some embodiments, the present invention provides a hybrid fiber with a smaller core in the initial length where the thermal loads are highest, followed by a larger-core fiber. In some embodiments the length of the smaller-core section is chosen to keep the core heat-per-unit-length of the second section below a critical value for the onset of MI. In some embodiments, the hybrid fiber of the present invention avoids modal instabilities while yielding almost the same performance as compared to conventional fibers with regard to minimizing fiber nonlinearities such as Stimulated Brillouin Scattering (SBS). In some embodiments, the hybrid fiber outputs a signal beam with at least 1 kW of power.

The invention discloses a high-performance continuous synthetic fiber reinforced thermoplastic composite and a preparation method thereof. The composite comprises the following components including, by weight, 35-60 parts of reinforcing filler, 35-60 parts of thermoplastic resin and 0.5-5 parts of aids, wherein the reinforcing filler includes synthetic fibers which include, by weight, 55-95% of inorganic fibers and 5-45% of organic fibers. The continuous inorganic fibers and the high-performance organic fibers are mixed to reinforce the thermoplastic resin so as to improve the performance of the composite, and advantages of various fibers are integrated to obtain the continuous fiber reinforced thermoplastic composite which is light in weight, high in strength and high in modulus while impact resistance and fatigue resistance are particularly improved. Mixing a small quantity of expensive high-performance organic fibers with the inorganic fibers can achieve better enhancing effect while cost is effectively reduced, so that higher using requirements of materials can be met.

An insulation product contains a mixed layer of textile fibers and of rotary and/or flame attenuated fibers. A process for manufacturing the insulation product includes passing fibrous bundles of textile fibers and of rotary and/or flame attenuated fibers together through an apparatus that divides the textile fibers into segments and that mixes the textile fiber segments with the rotary and/or flame attenuated fibers. The bundles of rotary and/or flame attenuated fibers can be in the form of specially manufactured mats and/or can be production scraps. The resulting mixture of fibers is formed into a non-woven batt, mat, blanket, or board. The process provides a mixed fiber product, with an improved combination of thermal and acoustic insulating performance and adequate strength, at a low production cost.

The present invention relates to a containerboard packaging material comprising at least one non-wood alternative pulp material wherein said non-wood alternative pulp material is present in an amount of from about 5% to about 100% and wherein said material replaces at least a portion of conventional fiber materials.

The invention discloses a composite material section bar as well as a preparation method and an application thereof in preparation of a solar photovoltaic module. The composite material section bar comprises fiber reinforcement and resin, wherein the mass ratio of the fiber reinforcement to the resin is (6-9): (1-4), and the fiber reinforcement is the mixture of mixed fibers and mixed fabrics. The composite material section bar can be used for preparing the solar photovoltaic module, has the advantages of lightness, hardness, high mechanical strength, good bending strength, high temperature resistance, low cost, low energy consumption, and very good corrosion resistance and can be applied to regions with environments such as high air temperature, high humidity and high concentration of salt and alkali. The composite material section bar is little influenced by the environments, has good electrical insulation property and can not be subjected to earthing treatment.

The invention discloses anti-permeability anti-corrosion concrete. The anti-permeability anti-corrosion concrete is prepared from the following components: silicate cement, coarse sand, medium-coarse sand, broken stone, water, steel slag, siliceous iron tailing powder, plaster, high calcium ash, ganister sand, vitrified microspheres, polycarboxylic water reducer, sodium molybdate, sodium nitrite, stannous chloride, ultrafine natural zeolite powder, hybrid fibres, an air entraining agent, urea and triethanolamine. According to the anti-permeability anti-corrosion concrete disclosed by the invention, the components are reasonable and act synergistically; the anti-permeability anti-corrosion concrete has high strength and high durability, such as freezing resistance, permeability resistance and corrosion resistance, and also has the advantage of preventing noise.

The invention discloses a high-durability concrete which comprises the following raw materials: cement, river sand, macadam, water, fly ash, nano microbead, natural zeolite micropowder, aluminum oxide, sodium sulfate, diethanolamine, sodium hydroxide, methyl trichlorosilane, ethanol, an air entraining agent, a lignosulfonate water reducing agent, polyvinyl alcohol, mixed fiber, sodium nitrate and polyvinylpyrrolidone. The mixed fiber is the combination of carbon fiber, steel fiber, polypropylene fiber and polyvinyl alcohol fiber in a weight ratio of 1:(2-5):(3-7):(3-6). The high-durability concrete has the advantages of high strength, favorable water impermeability, favorable freezing resistance and favorable durability, and has long service life when being applied to hydrotechnics, harbors, roads and other projects.

The invention discloses a molecularly imprinted fiber material and a preparation method thereof. The matrix of the molecularly imprinted material is an organic fiber, specifically polypropylene, polytetrafluoroethylene, viscose, polyacrylonitrile or polyvinyl alcohol. The preparation method comprises the following steps of: radiating the matrix fibers after being preprocessed using cobalt 60 gamma rays, mixing the radiated fibers with a graft monomer, and after a grafting reaction, removing homopolymers from the fibers through extraction filtration, and then drying the fibers in vacuum, thereby obtaining grafted modified fibers; reacting the grafted modified fibers with a functional polymer or a functional monomer, after the completion of the reaction, washing away the non-reacted functional polymer or functional monomer on the surface of the fibers, and then adding the fibers to the solution of template ions or template molecules to absorb the template ions or the template molecules;after the absorption is saturated, performing cross-linking using a cross-linking agent, and after the reaction is ended, removing the template ions or the template molecule through desorption using a desorbent, thereby obtaining the molecularly imprinted fiber material. The fiber material of the invention has high mechanical strength, high thermal stability, high chemical stability, high absorption capacity and high selectivity.

The present invention relates to a carbon fiber reinforced plastic member provided with high-elongation fiber bundle regions, which are uni-directionally aligned and separately disposed within the plastic member. The plastic member provides a carbon fiber reinforced plastic of lightweight, high strength and high modulus that is safe. Even if it breaks, it shows little scatter of fragments or exposure of dangerous fracture surfaces. Preferably, the high-elongation fiber at break has an elongation exceeding about 10%.

The invention discloses a composite fibreboard of psammophyte bush. A manual fast-growing forest timber is mixed in the psammophyte bush to prepare mixed fibre by a mixed jordaning method; and the mixed fibre reduces the bark content of the psammophyte bush and improves the fibre quality of the psammophyte bush, thereby improving the quality of the fibreboard. The invention also provides a method for manufacturing the composite fibreboard of the psammophyte bush; the method comprises the main steps: (1) material preparation; (2) hot grinding; (3) adhesive application and drying; (4) pavement; (5) hot pressing; (6) edge trimming, and other working procedures; in the material preparation section, wooden chips of the psammophyte bush with length of more than 10 cm are controlled within 5 percent; or the psammophyte bush is cut into small sections of crabsticks with the length of between 1.5 and 5.0 cm; and the wood chips or the crabsticks and the wood chips of the fast-growing forest timber are mixed to solve the problems that uncut strips of the psammophyte bush wind a cutter wheel of a drum-type chipper and block a tub wheel and a screen, and the like.

The invention discloses a high-performance concrete admixture in use of waste ceramic powder and an implementing method thereof. The high-performance concrete admixture is prepared by the following steps: utilizing waste ceramics as a main material and utilizing active seed crystals and a modified enhancer as auxiliary materials; performing modified treatment and high-temperature smelting on various materials, then putting into a cement mill to mill the materials to be pre-finished products with specific area of 300-450 m2/kg, and finally, doping mixed fibers. The high-performance concrete admixture comprises the raw materials in parts by weight: 80-100 parts of waste ceramic powder, 6-9 parts of active seed crystal, 2-6 parts of modified enhancer and 5-10 parts of mixed fibers. By adopting mixed ceramic powder, density of cement mortar is effectively increased; strength of concrete is improved and durability of concrete is remarkably improved. Energy problems are solved, and meanwhile, an environmental protection purpose is considered; the high-performance concrete admixture has remarkable technical, economic and social benefits.

The invention discloses wet-process substrate non-woven fabric used for a reverse osmosis membrane and a preparation method thereof. The manufactured substrate non-woven fabric is formed by integrating three layers of fibers through hot-melting rolling compaction, wherein the upper layer comprises ES composite fibers, the lower layer comprises COPET/PET dacron composite fibers, and the intermediate layer comprises synthetic fibers composed of PET fibers, ES fibers and COPET/PET composite fibers. The fabric is mainly characterized in that the entire fabric is of a single-layer structure. The preparation method of the fabric comprises the steps of hydrophilic treatment of the fibers serving as raw materials, processing and netting, drying treatment, first hot melting rolling compaction, cooling shrinkage treatment, second hot melting rolling compaction and quality inspection and rolling-up, and the preparation method is mainly characterized in that the seven steps are conducted in a continuous and synchronized mode. The wet-process substrate non-woven fabric used for the reverse osmosis membrane and the preparation method thereof have the advantages that the manufactured product quality is good, the preparation method and process are advanced and reasonable, energy is saved, consumption is reduced, and the process cost is low.

The purpose is to provide a heating unit of a carbon fiber-mixed sheet with a low price in which sheet carbon fibers are equally dispersed and a member on the surface of which sheet is not subjected to such change of properties as discoloration and the like. The constitution is characterized in that a sizing agent covers a part of the carbon fiber-mixed sheet which sheet is made by the mixed fiber-making of 5~10 wt. % of a carbon fiber having a length of 5~10 mm and 95~90 wt. % of a pulp containing a bast fiber and in that the sheet has a thickness of 150 mum or less, a basis weight of 50 g/m2 or less and a degree of beating of 30~70° SR.

The invention relates to a self-fragrant nonwoven fabric which is prepared from bicomponent fibers. The self-fragrant nonwoven fabric is prepared from the following components in percentage by mass: 10-50 percent of the bicomponent fibers and 50-90 percent of self-fragrant fibers and is prepared by the following steps of metering and carding the bicomponent fibers and the self-fragrant fibers, randomly arranging the bicomponent fibers, the self-fragrant fibers and natural anti-bacterial deodorizing fibers in the longitudinal direction and the transverse direction, laying a mixed fiber net by vertically and horizontally interlacing, winding and cohering the bicomponent fibers, the self-fragrant fibers and the natural anti-bacterial deodorizing fibers, and then heat setting and to compounding the mixed fiber net into the self-fragrant nonwoven fabric. The self-fragrant nonwoven fabric has no stimulation on skins of a human body, can inhibit invasion and breeding of bacteria, is high in absorption ratio to ammonia, is very prominent in the antibacterial effect, the antifungal effect and the deodorizing effect, has the characteristics of uniformity in releasing fragrance and long fragrance keeping time and is high in added value of a product.

A mixed fiber spunbonded nonwoven fabric which comprises 90 to 10% by weight of a long fiber of thermoplastic resin (A) that has been hydrophilization-treated and 10 to 90% by weight of a long fiber of thermoplastic elastomer (B) and which has a strength ratio [the ratio of a strength at 20% of an elongation at a maximum strength (elongation at a maximum point) to the maximum strength] in at least one direction of not more than 40% and a bulk density of 0.10 to 0.40 g/cm³. The fabric can exhibit excellent initial hydrophilicity, long-lasting hydrophilicity, liquid dispersibility, liquid transpiration property, moisture permeability, breathability, softness, resistance to fluff, stretchability and touch, and low stickiness, and is suitable for sheets constituting absorbent articles such as sanitary napkins, panty liners, incontinence pads, and disposable diapers. A production method is also provided.

This invention relates to a yarn having high moisture regain for use in arc and flame protection and fabrics and garments containing the yarn. The yarn has a blend of fibers which includes 10 to 40 weight percent meta-aramid fiber having a degree of crystallinity of at least 20%, 20 to 60 weight percent modacrylic fiber, 15 to 45 weight percent FR rayon fiber, and (d) 5 to 20 weight percent para-aramid fiber; based on the total weight of these components. If desired, 1 to 3 weight percent of the para-aramid fiber in the yarn can be replaced with an antistatic fiber as long as at least 5 weight percent para-aramid fiber is present.

The invention discloses a vehicular sound-absorption and thermal-insulation material and a preparation method of the vehicular sound-absorption and thermal-insulation material; the vehicular sound-absorption and thermal-insulation material comprises the components including PP, PET and glass fibres; the vehicular sound-absorption and thermal-insulation material is divided into five layers sequentially including a bottom glass fibre layer, a second mixed fibre layer comprising glass fibres, PP fibres and PET fibres, a medium mixed fibre layer comprising a PP material and PET, a fourth mixed fibre layer comprising the glass fibres, the PP fibres and the PET fibres, and a surface glass fibre layer; and the five layers are molten and connected into a whole. By means of the manner, the vehicular sound-absorption and thermal-insulation material disclosed by the invention not only can satisfy the flame-retardant property but also is capable of improving the sound-absorption property; in addition, on the basis of that of a traditional sound-absorption and thermal-insulation material, the sound-absorption property is increased by 30-50%.

A disclosed natural fiber/polymer fibrous layer laminated automobile chair-back sheet material comprises an integrated sheet material formed through lamination and combination of a first surface layer, a core layer and a second surface layer, the first surface layer and the second surface layer are non-woven fabrics, the core layer is a mixed fiber plate, the mixed fiber plate is prepared by compacting natural fiber and needle felt employing polymer fiber as the main composition, and the natural fiber is at least one selected from fibrilia, bamboo fiber, palm fiber and wood fiber. The invention also discloses a production method for the natural fiber/polymer fibrous layer laminated automobile chair-back sheet material. The automobile chair-back sheet material possesses the characteristics of being light in weight, small in density, excellent in breathability, and excellent in strength and toughness. By employing twice baking compaction and cold-press shaping processing in the production process, the sheet material density is improved.