78 results about "Fiber coating" patented technology

The invention relates to the technical field of biomedical materials, in particular to a degradable zinc-based composite GBR film with the surface loaded with a nanometer electrostatic spinning fiber coating and preparation and application of the degradable zinc-based composite GBR film. According to the degradable zinc-based composite GBR membrane with the surface loaded with the nano electrostatic spinning fiber coating, the nano fiber coating is implanted into the surface of a zinc-based material such as zinc alloy by adopting an electrostatic spinning technology, and the degradable zinc-based composite GBR membrane with the surface loaded with the nano electrostatic spinning fiber coating can inhibit excessive release of zinc ions, improve biocompatibility of the zinc alloy and the like, promote osteoblast differentiation and promote angiogenesis. The electrostatic spinning coating on the surface of the zinc-based composite GBR membrane serves as a physical barrier to block invasion of epithelial cells and fibrocytes, and angiogenesis is promoted along with degradation of fibers and slow release of drugs; the porous zinc alloy and the like in the middle layer not only provide mechanical support, but also release zinc ions in the degradation process to achieve multiple functions of resisting bacteria and promoting osteogenesis.

The application discloses an optical metamaterial fiber coating composite process and relates to the technical field of fiber coating. The optical metamaterial fiber coating composite process comprises the following steps: S1, raw material and equipment preparation: selecting a fiber base material, a metamaterial coating raw material and auxiliary modified raw material, the fiber base material being one of a single-mode optical fiber, a PA66 polymer fiber or a glass fiber, the purity of the metamaterial coating raw material being greater than or equal to 99.5%; selecting a coating equipment, a plasma cleaning machine, an ultrasonic cleaning machine and a low-temperature annealing furnace, completing equipment debugging and calibration and ensuring that equipment operation parameter errors meet preset standards. The optical metamaterial fiber coating composite process is convenient for applying a constant extrusion force to the glue during coating and compounding, the glue can enter the inside of the fiber base material, coating and compounding are more sufficient, and the quality of coating and compounding is improved.

The invention provides a gluing weight automatic adjusting and compensating method and device based on carbon fiber gluing, computer equipment and a storage medium. The method comprises the steps that a preset gram weight interval of carbon fiber gluing gram weight is set; providing a carbon fiber gluing machine, wherein the carbon fiber gluing machine is used for carrying out gluing operation on the carbon fibers; detecting the glue coating gram weight of the carbon fiber subjected to the glue coating operation in the current period; judging whether the carbon fiber gluing gram weight for gluing operation in the current period is within a preset gram weight interval or not; if the current carbon fiber gluing gram weight is out of the preset gram weight interval, a roller assembly gap of the carbon fiber gluing machine is controlled so as to adjust the gluing amount of the carbon fiber, and therefore manual sampling inspection is not needed, and the carbon fiber can be formed by presetting the total integral number sum of the composite coiled material of the carbon fiber needing to be formed and the resin and the volume fraction of the carbon fiber as a fixed value. According to the carbon fiber gluing gram weight in the current period, the gluing amount of the carbon fiber gluing machine is adjusted, and the resin content can be adjusted in the operation process of the gluing technology.

This invention relates to a method, apparatus, and packaging structure for in-situ packaging of fruits and vegetables using blown fiber spinning, addressing the current issues of efficiency and effectiveness in the use of nanofibers in fruit and vegetable packaging. This method selects carboxymethyl chitosan (CMCH) and polycaprolactone (PCL) as base materials, and uses SBS technology to directly deposit CMCH / PCL nanofibers layer by layer onto the surface of fruits and vegetables, forming a tightly adhered and stable fiber coating. The apparatus in this invention uses spiral-patterned conveyor rollers to simultaneously transport fruits and vegetables while performing blown spinning, achieving rapid and continuous in-situ packaging of fruits and vegetables. The in-situ packaging of this invention can be easily peeled off by hand, and it also serves as an excellent carrier for active substances, effectively inhibiting gray mold in fruits and vegetables. The in-situ packaging film forms a barrier on the surface of fruits and vegetables, reducing weight and hardness loss and delaying the ripening period after harvest.

The utility model provides a rotor and a motor, and belongs to the technical field of motors. Wherein the rotor comprises an iron core and a permanent magnet, a plurality of slotted hole groups are annularly distributed on the iron core at intervals, each slotted hole group comprises at least one slotted hole, the slotted holes penetrate through the iron core along the axial direction, the end part of at least one slotted hole in each slotted hole group extends to the periphery of the iron core, and a polymer coating layer is arranged on the periphery of the iron core; the number of the permanent magnets is multiple, and the multiple permanent magnets are correspondingly arranged in the slotted holes. According to the utility model, no magnetic isolation bridge is arranged at the periphery of the rotor, so that the problem of magnetic leakage can be reduced, and the permanent magnetic flux of the rotor can be improved. The polymer coating layer can reduce the problem that the permanent magnets are thrown out at a high rotating speed, and compared with a carbon fiber coating sleeve arranged on the periphery of the rotor, the polymer coating layer can reduce the cost. Therefore, the magnetic flux leakage problem can be improved on the basis of reducing the cost, the torque of the motor is improved, and the power density of the motor is increased.

Methods and systems for removing coatings from optical fibers. A system includes a gas source for providing gas, and a heater configured to heat the gas. The system includes a holder comprising first and second attachment features. The attachment features secure a coated optical fiber along a removal path. The system includes at least one nozzle connected to the gas source. The at least on nozzle is aimed in a nozzle direction that is towards the removal path at a pitch, such that the nozzle is non-perpendicular towards the removal path. The nozzle directs a continuous stream of the heated gas towards the coated optical fiber causing the coating of the coated optical fiber to be removed. The methods and systems may employ a second nozzle that may be offset from the first nozzle angularly and / or laterally with respect to the removal path.

The application relates to the technical field of fiber gratings, and discloses a preparation method of a large-area fiber grating and the fiber grating. The method is to make a glass tube with a refractive index close to that of a fiber coating adhere to the fiber under the action of high temperature by using the collapsing glass tube method, so that the femtosecond laser damage threshold of the fiber boundary is improved, the writing area of the fiber grating is increased, and even the modulation area introduced by the femtosecond laser can cross the two areas of the fiber and the glass tube, so that the fiber grating covering the whole cross section of the fiber is prepared. Meanwhile, the refractive index of the glass tube is close to that of the coating, so that the mode deformation and loss are not caused.

The application provides a carbon fiber coating method for a three-dimensional printing carbon fiber composite material surface, through simultaneously coating a metal net and a carbon fiber cloth layer on the three-dimensional printing carbon fiber composite material surface, and adding a process step of a separation film and vacuum compression, the mechanical properties and the heat conduction properties of the coated part are obviously improved, so that the working load and the service life of the part can be greatly improved, and the part surface also plays a decorative role, has the characteristics of simple preparation process, low manufacturing cost and the like, and has high implementability in industrialized production, has great market potential and broad application prospect, and plays an important role in popularization and application of carbon fiber composite materials in robot lightweight.

An optical fiber includes a glass structure to guide light along a longitudinal axis of the optical fiber, and an amorphous coating disposed on and surrounding the glass structure. The amorphous coating includes at least one fluorinated polyimide. A repeating unit each fluorinated polyimide includes two imide groups and at least one fluorinated aliphatic spacer group. Each imide group is attached to a terminus of a fluorinated aromatic group. The amorphous coating has a low refractive index, high-temperature stability, and low optical absorption, making the optical fiber suitable for high-power applications subject to high temperatures. The amorphous quality of the coating is compatible with fiber drawing and provides the necessary mechanical strength for the optical fiber when in use.

The invention provides a diaphragm as well as a preparation method and application thereof, the diaphragm comprises a base material and a coating, and the base material comprises polyolefin; the coating is arranged on at least one surface of the base material, and the coating comprises polar group grafted aramid fibers. According to the diaphragm disclosed by the invention, the polar group grafted aramid fiber coating is arranged on the polyolefin base material, so that the functions of rapid transmission and uniform distribution of ions can be regulated and controlled by virtue of excellent thermal stability of the polar group grafted aramid fiber coating; and the cycling stability and safety of electrochemical devices such as batteries and the like at high magnification and high temperature can be realized.

The utility model discloses a pressure regulating mechanism of a conductive fiber coating machine, which comprises a coating rack, an upper coating roller and a lower coating roller, the two ends of the upper coating roller are connected with regulating arms, and the regulating arms penetrate through vertical sliding chutes formed in the top of the rack; a pressing plate is arranged at the upper end of the adjusting arm and provided with an adjusting screw rod, and the adjusting screw rod makes contact with the pressing plate. The adjusting screw rod is connected with a worm gear, the worm gear is meshed with a worm, the worm is connected with a manual knob and fixed to the top of the rack through a ratchet mechanism, and the signal output end of the pressure sensor is connected to a display screen on the outer side of the rack and used for displaying the pressure value in real time. According to the utility model, high-precision pressure regulation is realized through worm and gear transmission, and real-time monitoring is realized by combining the pressure sensor and the display screen; an anti-reverse ratchet mechanism and a limiting assembly enhance the stability, and a silica gel damping layer effectively absorbs vibration; and the anti-skid rotary knob simplifies operation, the adjusting efficiency is improved, the overall structure integrates precision, stability and convenience, and the coating quality and the production efficiency are remarkably improved.

The application relates to an optical fiber cable self-adaptive pay-off device and relates to the technical field of optical fiber pay-off, which comprises a bottom plate, a mounting assembly, a driving assembly, a self-adaptive assembly and a guiding and buffering assembly. The application replaces the continuous rotation mode of a traditional worm gear by engaging transmission of a ratchet wheel and a pawl, greatly improves the pay-off efficiency, drives the first mounting plate and the second mounting plate to synchronously move by using a servo motor to drive a bidirectional screw rod, realizes automatic and rapid disassembly and assembly of a pay-off roller, automatically increases damping force when the rotation speed of the pay-off roller is too fast by adjusting the adhesion pressure of a metal friction damping piece and a chuck with the aid of a unidirectional screw rod, restrains inertial rotation, realizes self-adaptive pay-off control, drives a guiding roller to float and buffer by cooperation of a guiding block in a stand and an extension spring, absorbs instantaneous tension when a cable is payed off, prevents shaking and knotting, protects an optical fiber coating, and the whole structure does not need a complex electric control system, and can realize efficient, convenient and stable optical fiber pay-off operation.

Method for coating short fibers. The present invention relates to a method for coating short fibers, comprising: - the desizing of sieved silicon carbide short fibers, - the deposition, on the desizing short fibers, of an adhesion promoter made of a metal oxide ceramic material having pendant groups on its surface, the adhesion promoter being deposited by atomic layer deposition technique, and - the deposition, on the desizing short fibers coated with the adhesion promoter, of boron nitride by atomic layer deposition technique, comprising (a) the grafting of a first Lewis acid precursor comprising boron to the surface of the adhesion promoter by addition to the pendant groups at the boron atom, and (b) the reaction of the first precursor thus grafted with a second precursor comprising nitrogen to obtain boron nitride. Fig. 2.

The invention belongs to the field of pharmaceutical preparations, and particularly relates to an acetate fiber thermoplastic coating film as well as preparation and application thereof. The cellulose acetate thermoplastic coating film is prepared by thermoforming cellulose acetate, triethyl citrate and polyethylene glycol which are uniformly mixed as raw materials. The preparation process is high in automation and scale degree, low in environment and equipment requirements, green and environment-friendly, capable of reducing loss and suitable for industrial production. The sustained and controlled release preparation prepared from the cellulose acetate fiber thermoplastic coating film has a good sustained and controlled release effect, and a new coating direction is provided for preparation of the sustained and controlled release preparation.

The coating removal device is a coating removal device that removes the coating of an optical fiber, and includes a pair of blade bodies that include a first blade body and a second blade body, and that make an incision in the coating by clamping the optical fiber between the first blade body and the second blade body in opposing directions, and a stage that is arranged adjacent to the pair of blade bodies in an axial direction that intersects the opposing direction and has a mounting surface on which the optical fiber extending from the pair of blade bodies in the axial direction is placed, and the mounting surface is configured to be movable relatively to the pair of blade bodies in a first adjustment direction that intersects the mounting surface.

The utility model belongs to the technical field of optical fiber manufacturing equipment, and particularly relates to a control device structure for stabilizing the curing degree of an optical fiber coating. The device mainly comprises an optical fiber drawing furnace, an optical fiber coating platform and an optical radiation curing furnace which are sequentially arranged from top to bottom, an upper opening air inlet device and a lower opening air draft device are arranged at the top and the bottom of the optical radiation curing furnace respectively, and the upper opening air inlet device and the lower opening air draft device are communicated through a central pipe arranged in the middle of the optical radiation curing furnace; an optical radiation device is installed on the inner wall of the optical radiation curing oven, an illumination density sensor is arranged on the inner wall of the central pipe, and the optical radiation device and the illumination density sensor are both electrically connected with an illumination density control cabinet arranged on the side portion of the optical radiation curing oven. The device is compact in overall structure and convenient to install and maintain, the illumination density in the optical fiber curing oven can be conveniently measured and adjusted, the stability of the curing degree of an optical fiber coating is effectively improved, and the product quality is improved.

This invention relates to the field of refractory fiber materials, and more particularly to raw materials comprising, by weight: 30-60 parts magnesium aluminum spinel, 10-30 parts M70 sintered mullite, 5-30 parts silica micropowder, 1-20 parts starch ether, and 0.5-2.0 parts surface-modified reinforcing fiber and 5-20 parts ZrO2 micropowder; wherein the surface-modified reinforcing fiber is pre-oxidized polyacrylonitrile fiber, and its surface is bonded or coated with a layer of silicon-based polymer precursor, wherein the silicon-based polymer precursor is selected from polysiloxane or polycarbosilane. The high-temperature resistant ceramic fiber coating of this application has good thermal insulation performance, strong stability, and excellent resistance to chemical erosion and wind erosion.

The utility model discloses ultra-high molecular weight polyethylene fiber coating equipment which comprises a coating pool, a plurality of stirring motors are fixedly installed at the bottom in the coating pool, output shafts of the stirring motors are in transmission connection with impellers, heating pipes are fixedly arranged on the two sides of the bottom of the inner wall of the coating pool, and the impellers are located between the two heating pipes. According to the ultra-high molecular weight polyethylene fiber coating equipment disclosed by the utility model, the stirring motor, the impeller and the heating pipe are arranged, so that the coating pool can be heated and stirred, and the uniformity and the temperature stability of a coating are ensured; by arranging a servo motor, a driving shaft, a coating wheel frame, a fiber inlet and outlet wheel and a fiber guide wheel, continuous coating operation of ultra-high molecular weight polyethylene fibers can be achieved, and the coating efficiency and the coating quality are improved; and by arranging a drying pipeline, a heating plate, a fan and a second temperature sensor, the coated fibers can be rapidly dried, and the firmness and stability of the coating are guaranteed.

The invention discloses special paper based on a multi-layer anti-counterfeiting function and a preparation method thereof, and belongs to the technical field of paper anti-counterfeiting. The special paper sequentially comprises a base paper layer, a fluorescent color fiber coating layer, a dielectric film sizing layer and a three-dimensional anti-counterfeiting transparent dielectric layer from bottom to top. Wherein the fluorescent colored fibers are prepared by mixing colored fibers with various colors and uniformly spraying transparent fluorescent ink paint, and have two anti-counterfeiting characteristics of color matching and fluorescence. The three anti-counterfeiting technologies of refraction, fiber color matching and fluorescent color development are organically combined in the same paper area in a layering mode, the structure is unique, the anti-counterfeiting layers are rich, the counterfeiting difficulty is extremely high, meanwhile, consumers can conveniently carry out authenticity identification in multiple modes of view angle changing, fiber observing, ultraviolet lamp irradiation and the like, and the anti-counterfeiting effect is good. And the system has extremely high safety, interactivity and popularization value.

The invention provides a medium-density cover plate coated with a carbon nanofiber coating and a preparation method and application of the medium-density cover plate. The preparation method comprises the steps that plasma activation is conducted on the surface of a medium-density plate; spraying a silane coupling agent on the surface of the medium-density board; the method comprises the following steps: soaking carbon nanofibers in a chemical oxidant for pretreatment; preparing the carbon nanofibers into suspension liquid; and spraying the suspension on the surface of the medium-density plate to form the medium-density cover plate coated with the nano carbon fiber coating. The surface of the medium-density board is subjected to plasma activation, so that active groups are introduced into the surface of the medium-density board; according to the invention, chemical oxidation is carried out on the carbon nanofibers, so that active groups are introduced to the surfaces of the carbon nanofibers, and then molecular-level bridging is realized between the activated carbon nanofibers and the medium-density fiberboard through a silane coupling agent, so that strong interface bonding is formed between the medium-density fiberboard and the carbon nanofibers, and the medium-density fiberboard and the carbon nanofibers are prevented from falling off and deviating in the drilling process; and the drilling precision is influenced.

The invention relates to the technical field of flow measurement, and discloses a non-magnetic-loss type ceramic composite structure flowmeter which comprises a flange, a shell, a magnet exciting coil and a composite measuring tube, and the composite measuring tube is composed of an integrally-formed ceramic guide tube and a sintering electrode integrally sintered with the ceramic guide tube. A carbon fiber coating structure is compounded on the outer wall of the ceramic conduit to enhance the mechanical strength; the shell is designed to be of a windowing or segmented structure in a magnetic field covering area of the excitation coil, lossless transmission of a magnetic circuit is jointly achieved through the shell and the nonmetal composite measuring pipe, the sintering electrode is in a cone frustum shape, self-locking is achieved through fluid pressure, the inner surface of the sintering electrode is flush with the pipe wall, and it is guaranteed that a flow field is stable while the high-pressure sealing problem is solved. Through the collaborative design of the non-magnetic-loss structure, the composite reinforced pipe body and the integrated self-locking electrode, the measuring precision, the structural reliability and the environmental adaptability of the flowmeter are remarkably improved, and the flowmeter can be suitable for high-temperature, high-pressure and other harsh occasions.

The present application relates to the technical field of fiber coating technology, and specifically discloses a kind of winding fiber coating device for gas cylinder production, comprising: rack;Gas cylinder rotating unit;Top support clamping unit;Coating unit;And traction unit.The present application is through the cooperation of guide plate and traction unit, when coating unit moves along the axial direction of gas cylinder, it is automatically compensated radially, ensure that coating gap is constant.This realizes that the thickness of fiber on the outer surface of gas cylinder is consistent, and glue layer is even and flat, significantly improves the dynamic balance of gas cylinder and load uniformity.At the same time, by continuously passing high-temperature gas into the bottle through the inflator, the temperature of the bottle body is raised to reduce the viscosity of the glue solution, and the great flow resistance when the fiber bundle passes through the scraper opening is eliminated.This avoids the wear and tear of the coating on the surface of the fiber and the breakage of the single fiber due to the sudden increase of shear force, and eliminates the generation and expansion of micro-damage from the root, ensuring the structural integrity of the composite material.

The application provides a multi-layer fast heat-conducting high-temperature-resistant elastic yarn and a preparation method thereof. The yarn comprises, from inside to outside, an elastic core yarn, a functional layer and a flame-retardant short fiber coating layer. The functional layer comprises a plurality of layers of heat-insulating inorganic fiber coating layers and heat-conducting inorganic fiber coating layers. The number of layers of the functional layer is even, and the heat-insulating inorganic fiber coating layers and the heat-conducting inorganic fiber coating layers are arranged in a cross manner from inside to outside or sequentially from inside to outside as a plurality of layers of mowrah filament coating layers and a plurality of layers of heat-conducting inorganic fiber coating layers. The multi-layer fast heat-conducting high-temperature-resistant elastic yarn with good mechanical properties, high elastic elongation, excellent flame-retardant high-temperature-resistant performance is formed by the synergistic cooperation of a braiding machine or a wrapping spinning machine and a friction spinning machine. The yarn can be applied to the fields of fire hoses, fire suits, flame-retardant home textile products and the like, and has wide application value.

The utility model relates to the technical field of post-cast strip form removal, in particular to a post-cast strip form removal stress real-time monitoring device which comprises a post-cast strip concrete body, an embedded sleeve is fixedly installed in the post-cast strip concrete body, and a stress piece body is bonded to the left position of the top face of the post-cast strip concrete body. According to the post-cast strip formwork removal stress real-time monitoring device, through the arrangement of the insulating flexible cushion layer, the ceramic cover cap, the ceramic fiber covering film, the side grooves, the limiting inserting pieces, the limiting screw rods, the pre-embedded sleeves, the hollow sleeves and the threaded connectors, the post-cast strip formwork removal stress real-time monitoring device can conveniently monitor the stress of the post-cast strip when the stress piece body is used; the ceramic covering structure can be well and fixedly assembled outside the stress sheet body through the embedded limiting assembly, so that the stress sheet body can be well covered, isolated and protected, and meanwhile, the whole covering protection assembly and the conventional covering layer are not prone to aging and falling off as a whole.

This invention discloses a synthesis process and application of a low-refractive-index optical fiber cladding material composition, relating to the field of optical fiber coating technology. The low-refractive-index optical fiber cladding material composition is obtained by polymerizing a mixture of fluorinated acrylate, acrylate, acrylic acid, fluorinated polyether acrylate, compatibilizer monomers, and solvent under the action of an initiator. This invention prepares an optical fiber cladding material composition that combines low refractive index, high tensile strength, and high hardness by compounding a low-refractive-index fluorinated polyether acrylate with a compatibilizer monomer and optimizing the proportions of other raw materials.

The utility model discloses an optical fiber sensing on-line monitoring system for the temperature of a furnace tube of a tubular heating furnace. The optical fiber sensing on-line monitoring system comprises a high-temperature sensor, a heat insulation protection device and a signal processing module, the fiber bragg grating array adopted by the high-temperature sensor is prepared by femtosecond laser direct writing, the fiber bragg grating penetrates into the high-temperature alloy capillary tube with the diameter of 1mm, the high-temperature sensor is used in the temperature range of 450-850 DEG C, and the fiber coating is ceramized when the high-temperature sensor is used, so that the temperature can be measured at the temperature. In actual use, the sensor is bound on the outer wall of a heating coking furnace tube, the surface of the sensor is wrapped by high-temperature asbestos and high-temperature pipe pieces to isolate radiation heat of a heating furnace, and optical signals collected by the array fiber bragg grating at high temperature are demodulated by a demodulator and then transmitted to an upper computer display and a PLC / DCS control system in real time. Accurate on-line measurement of the temperatures of different positions of the coking heating furnace tube is realized.

The invention provides a carbon fiber mask aluminum profile heat preservation cabin door electromagnetic shielding structure and a manufacturing process thereof. The carbon fiber mask aluminum profile heat preservation cabin door electromagnetic shielding structure comprises a carbon fiber mask provided with a metal aluminum spraying layer, an aluminum profile framework and heat preservation foam filled in a cavity. And a semi-fluid sealant layer for forming a physical isolation dam and a conductive sealant layer for electric connection are sequentially arranged on the contact surface of the mask and the framework from inside to outside. According to the invention, internal insulation structural adhesive is prevented from overflowing to pollute a conductive surface by utilizing the physical barrier effect of the inner side semi-fluid sealant layer, and reliable electromagnetic shielding and sealing are realized by combining the connection effect of the outer side conductive sealant layer; the problems of shielding failure and water seepage of the composite cabin door caused by the fact that dissimilar materials cannot be welded and glue overflow are effectively solved, and the shielding effectiveness and reliability of the cabin door are improved.

For example, an antimicrobial and / or deodorizing textile coating composition that reduces and / or prevents bacterial growth and controls odor on treated textile materials over a long period, including up to 50 wash cycles. This textile coating composition may contain benzoic acid and at least one of terephthalic acid and / or quatsilane.

The present application belongs to the technical field of carbon fiber material coating, and particularly relates to a preparation and application method of low surface resistance coating for carbon fiber composite material, wherein the coating is formed by mixing water-based conductive paste and water-based resin paint according to a mass ratio. The application method comprises the following steps: polishing the carbon fiber substrate to expose the carbon fiber monofilament layer, spraying the coating for at least 3 times (spraying once, flash drying once, spraying again, flash drying twice, and spraying for 3 times in total), polishing with 1500-mesh, 2000-mesh and 3000-mesh water sandpaper in sequence, wet polishing with a new sponge wheel and clean water, and finally baking to remove moisture. Through the technical scheme, a high-performance black coating with a surface resistance of less than or equal to 1 ohm / m2, a roughness Ra of less than 0.5 microns and an adhesion of less than or equal to 1 can be formed on the surface of the carbon fiber composite material, thereby solving the problem that the carbon fiber coating in the prior art is difficult to balance the conductivity, adhesion and surface smoothness. The present application is environmentally friendly and operable, and is suitable for surface treatment of carbon fiber composite material products in the fields of aerospace, military industry and the like.