64 results about "Vectran" patented technology

The invention provides an ultra-light, weather-resistant and high-strength stratosphere skin material which has high strength and weatherability, relating to skin materials. The ultra-light stratosphere skin material consists of a weather-resistant layer, a force bearing layer, a block layer and a heat sealing layer from outside to inside. Vectran fiber 200 Daniel plain woven fabric with ultra-high strength is selected and used as the force bearing layer, the Vectran fiber 200 Daniel plain woven fabric has the strength about 6 times as high as that of common polyesters, and the light weight of 54 g/m<2> and the thickness of 0.16 mm. The produced stratosphere skin material has ultra-light mass.

The present invention provides a wearable body armor suit, comprising a plurality of body armor components that are connected together by an impact-resistant material, wherein the impact-resistant material comprises Vectran™ or woven chain mail, and wherein the body armor components are formed of carbon fiber or liquid crystal polymer fiber that is woven or formed into a platen. The platen is molded or curved to accommodate the shape of a body part being covered by the body armor component, for localized and directed protection of strategically important body parts.

The invention discloses a wear-resisting high-strength cable produced by a non-single material and a preparation method of the wear-resisting high-strength cable. A cable body is an 8-strand structure core body which is prepared from ultra-high molecular weight polyethylene (UHMWPE) and high-strength polyester according to the amount ratio of 3 to 1; a high-toughness wear-resistant coating woven by adopting vectran fibers is arranged outside the core body; and a wear-resistant coating which is especially made of a wear-resistant material PTFE as a matrix coats the outer surface of the sleeve; the preparation method comprises the following steps: fabricating a cable body by the procedures of preparing roving, preparing rope yarns, infiltrating resin, preparing rope strands, braiding ropes, prestretching and drying; weaving a high-strength wear-resisting sleeve on the surface of the core body; and dipping and coating a wear-resisting coating which is especially prepared from PTFE as a matrix on the outer layer of the sleeve.

A mandibular advancement oral appliance for treatment of snoring and obstructive sleep apnea comprises upper and lower thermoformed co-polyester splints, custom fabricated to match the patient's dentition. The splints are interconnected by a thread cord or filament in a pre-fabricated continuous loop with no knot. The loop passes through guide tubes and around pulley's having openings to allow the thread to be forced into them. The thread is made up of braided liquid crystal polymer fiber (Vectran®). This appliance uses a locking device to keep the continuous loop from traveling along itself. This stabilizes the anterior positioning. The locking mechanism comprises an expansion clamp consisting of an oval expansion crank, oval casing and cap. The locking mechanism's function is to restrict movement of the loop, thereby locking the mandible in the desired forward location while the patient sleeps. The loop guide, pulleys and locking device are preferably affixed to the anterior-facing surfaces of the splints.

The invention relates to a method for modifying the surface of Vectran fiber coated with nano silicon dioxide sol through plasma treatment, which comprises the following steps: firstly, nano silicon dioxide is prepared into an organic solvent, a sol solution of water or a sol solution prepared by hybridization reaction of a precursor solution of organic-inorganic nano particles and silicon dioxide nano particles by the ultrasonic vibrating technology; secondly, the sol solution is coated on the surface of the fiber and dried; and thirdly, the dried Vectran fiber is placed on a plasma transport unit and a plasma is sprayed on substances to generate modification, wherein the treating power is between 10 and 15,000 watts, and the treatment time is between 0.5 and 300 seconds. The method can effectively improve the performance of the fiber, improves the molded manufacturability and the overall properties of composite materials of the fiber, has simple technology, quick processing speed, good treatment effect and low cost, is convenient to operate and difficult to cause environmental pollution, can reduce energy consumption, and is suitable for industrial production.

The invention discloses a method for preventing ultraviolet ageing of Vectran fibers, which relates to a method for preventing ultraviolet ageing of coated fibers. The invention solves the problem of poor effect of preventing ultraviolet ageing of the existing Vectran fibers when a protective layer of an inorganic ultraviolet reflection agent or an organic ultraviolet absorbent is used independently. The method of the invention comprises the following steps: (1) preparing TiO2 hydrosol by a sol-gel method; (2) mixing the TiO2 hydrosol in the step (1) with organic solution of the organic absorbent to obtain a polymer paint; and (3) utilizing ultrasound effect to soak the polymer paint on the Vectran fibers, then airing the processed Vectran fibers and drying the Vectran fibers. The method has simple process and simple and easy operation and makes the Vectran fibers have protection functions of both ultraviolet reflection and ultraviolet absorption. The Vectran fibers obtained by the method are applied to a skin material of a high-altitude airship.

The invention provides a gas rib suitable for a large inflatable boat/hangar. The technique mainly includes three aspects of designing of the cutting manner of a middle strengthening pulling belt and gas rib cut pieces, selecting of the middle strengthening pulling belt and gas rib materials and designing of a reinforcing net outside the gas rib. The gas rib is formed by mutually welding a front end face, a rear end face, an upper piece, a lower piece and two bottom faces in a high frequency mode. The middle of the gas rib is provided with the strengthening pulling belt. The front end face and the rear end face are respectively formed by welding a plurality of end face cut pieces in a high frequency mode, and the strengthening pulling belt is formed by welding a plurality of pulling belt cut pieces in a high frequency mode. The end faces, the upper pieces and the two bottom faces of the gas rib are made of polyester/PVC composite film materials, and the lower piece of the gas rib and pilling belt bodies composing the strengthening pulling belt are made of Vectran/PVC composite film materials. The end face cut pieces and the pulling belt cut pieces are cut in a specific manner than inflated and formed bearing layer fabric materials are subjected to the maximum acting force in the longitude direction and the latitude direction. A reinforcing net is arranged on the outer portion of the gas rib.

The invention discloses a method for calculating instantaneous milling force of a carbon fiber reinforced composite material by considering changes of a fiber cutting angle and a cutting depth. The method comprises the following steps: firstly, simulating cutting processes with different fiber cutting angles and different cutting depths to acquire a data sample about cutting force, substituting the acquired data sample into an agent model, and establishing a prediction model in which input variables are the fiber cutting angle and cutting depth and output variables are the cutting force, so that the cutting force under other different fiber cutting angles and cutting depths can be predicted. When the instantaneous milling force is calculated, each instantaneous spiral milling cutter cutting edge is dispersed into a plurality of infinitesimal elements along the circumferential direction of the spiral milling cutter cutting edge; the infinitesimal cutting process is approximately regarded as a right-angle cutting process or an oblique-angle cutting process; the cutting force of each section of infinitesimal element is independently calculated according to different fiber cutting angles and cutting depths of the position where each section of infinitesimal element is located; and finally the cutting force of all the infinitesimal elements is added through a coordinate transformation and vector superposition method, so that the milling force of each moment is calculated.

The invention relates to a take-up apparatus. The take-up apparatus is characterized by comprising a take-up frame, the take-up frame is internally provided with an I-shaped wheel (3.6), an upper rotation wheel (3.5) is successively provided with a take-up die head (3.8) and a support plate (3.9) from top to bottom, vertical top plate support shafts (3.10) are arranged between the two ends of the support plate (3.9) and a top plate (3.2), the two top plate support shafts (3.10) are each fixedly provided with a take-up wheel, a base plate (3.1) at the front side and the rear side of the take-up wheel at the left is each provided with a fixation wire guide roller (3.12), and a wire arrangement apparatus is also arranged between the base plate (3.1) and the left end of the top plate (3.2). The take-up apparatus is used for assembling a wire-coiling machine, and a die head is not extruded when an alloy heating wire is wound on the surface of vectran. Therefore, a finally wound product is good in extensibility, high in surface flatness and good in anti-folding performance.

The invention relates to an alloy heating wire pay-off apparatus. The apparatus is characterized by comprising a support bench (2.1), the support bench (2.1) is provided with multiple vertically arranged vertical rods (2.2), the vertical rods (2.2) are sleeved by alloy heating wire pay-off cylinders (2.3), a guide ring spacing collar (2.4) is arranged at the center of the support bench (2.1), and the guide ring spacing collar (2.4) is provided with multiple alloy heating wire guide rings. The alloy heating wire pay-off apparatus is used for assembling a wire-coiling machine, and a die head is not extruded when an alloy heating wire is wound on the surface of vectran. Therefore, a finally wound product is good in extensibility, high in surface flatness and good in anti-folding performance.

The invention provides a novel weaving idea of protecting concrete structure grid fence type fabric and process, wherein high strength high mole fabric such as filaments of Vectran and Zylon and the like and high strength nylon fiber are blended into 20-40 yarns, grid fence type fabric whose yarn density is less than 20 lines/10cm is weaved, thereby being capable of improving the brittle failure characteristics of concrete, reducing the shrinkage crack of the concrete, increasing the toughness and impact resistant wear resistance of the concrete, simultaneously, and being capable of improving the characteristics of the concrete such as anti-permeability and antifreezing and the like. The production cost is low, the weaving process is simple, and the economic and social benefits are excellent.

The invention provides a preparation method for a fiber composite material reinforcing strip and relates to a preparation method for an inflating extending arm reinforcing strip. By the preparation method, the problems that the elastic reinforcing steel strip in the conventional charging extending arm is magnetized easily and the unit mass is high are solved. The preparation method for the fiber composite material reinforcing strip comprises the following steps of: 1, paving bottom layer Vectran fiber cloth; 2, brushing epoxy resin glue on the surface of the bottom layer Vectran fiber cloth; 3, paving interlayer carbon fiber cloth; 4, brushing epoxy resin glue on the surface of the interlayer carbon fiber cloth; 5, paving upper layer Vectran fiber cloth; 6, placing the three layers of composite fiber cloth into a special die, placing into a constant-temperature chamber, heating and curing; and 7, cutting the cured three layers of composite fiber cloth to obtain the fiber composite material reinforcing strip. The preparation method for the fiber composite material reinforcing strip has a simple process. The reinforcing strip has corrosion resistance, ageing resistance, light weight, high straightness and high tensile strength and bending rigidity, and is not magnetized. The fiber composite material reinforcing strip is applied to the charging extending arm.

A filler for production of cement-bound shaped bodies, comprising a material group mixture of comminuted and sorted waste materials, conditioned with chemical reagents/compounds in the presence of water, wherein the material group mixture is composed of comminuted and sorted waste materials, selected from the following material groups:

• • PPK: paper, paperboard, cardboard
  • plastics
  • inert material
  • textiles
  • wood

which are mixed according with a mass-related material group vector and then comminuted.

The present disclosure provides a multi-layer system including at least two or more parallel layers of thin material unconnected within a layer but joined together by at least two opposing edges that are in series with an anticipated vector of mechanical force. Each layer includes two or more materials of different elasticities that are arranged in series with respect to the two fixed ends of the material. Each layer can possess a unique spatial arrangement of the different elastic segments. The relative movement of the material layers provides patterns within one or more of the layers that reveal colors, spaces, or patterns in the underlying layers depending on the amount of tension across the material. This allows for the dynamic change in outward appearance of the material with the increase and decrease of force.

A high strength racquet string includes a monofilament core and a plurality of strands braided around the monofilament core in opposite directions. The same number of strands are braided clockwise as braided counterclockwise. The plurality of strands are not bonded to the monofilament core along a length thereof, but are bonded to each other at opposing ends to prevent unraveling of the plurality of strands. A coating is not applied to the high strength racquet string. A cross-sectional shape of the monofilament core and the plurality of strands is preferably round or substantially round. The monofilament core is preferably fabricated from nylon, polyester, polyethylene or any other suitable material. The plurality of strands are preferably fabricated from Spectra, Vectran or any other suitable material. An outside diameter of the high strength racquet string preferably ranges from 1.0 mm to 1.5 mm.

The invention provides a preparation method of an alpha-Fe2O3 conductive polyaniline composite material. The preparation method comprises the following steps: by using ferric chloride hexahydrate, sodium acetate, ethylene glycol and the like as main raw materials, synthesizing granular alpha-Fe2O3 by using a hydrothermal method, and compounding the granular alpha-Fe2O3 with conductive polyanilineto prepare the composite material with microwave and infrared wave-absorbing properties. An XRD performance test proves that the synthesized material has high crystallinity. The morphology characterization of the material is carried out through SEM, and a characterization result proves that the synthesized alpha-Fe2O3 is granular, and the alpha-Fe2O3 conductive polyaniline compound is of a core-shell structure. A wave-absorbing performance test is carried out on the compound through a vector network instrument, and it is proved that the compound has good wave-absorbing performance in microwaveand infrared bands and has high practical application value. The alpha-Fe2O3 conductive polyaniline composite material has good application prospects in the fields of microwave and infrared absorption materials, electromagnetic protection and the like.

An embodiment of the invention discloses a light wear-resistant multifunctional composite power single rope. The power single rope comprises a composite rope core and a rope skin which wraps the outside of the composite rope core, wherein the composite rope core is formed by compounding a first rope core fiber and a second rope core fiber, and the rope skin is formed by combining the first rope skin and the second rope skin at intervals in the axial direction of the power single rope. The first rope core fiber is a polyamide fiber, the second rope core fiber is a high-strength low-elongation fiber, and the first rope core fiber and the second rope core fiber are parallel, plied and compounded or braided and compounded to obtain the composite rope core; the rope skin is formed by weaving composite fiber strands, the first rope skin is formed by weaving with the pitch of 25-30 mm, and the second rope skin is formed by weaving with the pitch of 32-40 mm; the composite fiber strands are formed by compounding the polyamide fiber with the high-strength low-elongation fiber according to the number ratio of 4: 1; and the high-strength low-elongation fiber comprises one or a combination ofmore than one of ultra-high molecular weight polyethylene fiber, Vectran fiber, aramid fiber, carbon fiber and glass fiber.