187 results about "Fiber roll" patented technology

An object of the present invention is to provide a spiral membrane element that can improve the barrier property of a fiber reinforced plastic layer having a fiber roll as a reinforcing phase and that can effectively prevent occurrence of cracks. The spiral membrane element of the present invention is a spiral membrane element containing a cylindrical roll R in which a separation membrane, a feed-side flow passageway member, and a permeate-side flow passageway member are spirally wound in a laminate state around a perforated center tube 5 and in which a sealing part for preventing mixing of feed-side fluid and permeate-side fluid is disposed, wherein a fiber reinforced plastic layer 26 having a fiber roll as a reinforcing phase is formed on the outer circumferential side of said cylindrical roll R, and a plastic layer 24 is disposed in the inner part or on the inner side of the fiber reinforced plastic layer 26 approximately over the entire length and approximately over the entire circumference of the fiber reinforced plastic layer 26.

The invention relates to thermoplastic prepreg prepared through a continuous laminating method and a method thereof. An existing laminating method for preparing the thermoplastic prepreg adopts intermittent production and is low in production efficiency. According to the method, two resin film rolls are arranged above and below a reinforced fiber roll respectively, and take-up operation is executed through a take-up device. Impurity removing and drying nozzles are arranged on the advancing path of reinforced fibers and resin films, the reinforced fibers and the resin films are converged to directional roller sets opposite vertically to be positioned and are preheated through preheating equipment sets opposite vertically, the positioned and preheated reinforced fibers and the resin films pass through continuous laminating equipment sets which are each provided with a heating and cooling device and are opposite vertically for preimpregnation, and the prepreg is obtained through paying-off and edge cutting operations. The continuous process is adopted, the production efficiency is greatly improved, pretension is exerted on resin and the fibers controllably by adjusting linear speed of each section in the preparation process, and the performance of the thermoplastic prepreg is improved.

The invention relates to an airgel material reinforced by fiber reinforcement and its preparation method. The width of the material is 0.5-1.5 meters, and the length is 5-30 meters. Its composition includes silicon dioxide airgel and reinforced continuous fiber, and its weight ratio is 1:0.5-2.5. The present invention also relates to (1), limiting and winding the continuous reinforcing fiber into a winding unit while keeping a certain gap between the continuous fibers; (2), disposing silicon alkoxide, alcohol solvent and basic catalyst according to a certain ratio (3) Immerse the silica sol into the continuous reinforcing fiber winding unit through the impregnation process; (4) After the silica gel is aged for a certain period of time, the surface is treated with a hydrophobizing agent; (5) The silica gel containing silica gel The continuous fiber winding unit of glue is supercritically dried. The material prepared by the invention has large specific surface area and low thermal conductivity, and can be applied in many fields such as fire retardation, sound insulation, gas adsorption and the like.

The invention relates to a graphene polylactic acid bicomponent composite fiber and a preparation method and equipment thereof, and belongs to the technical field of melt-spinning fibers. The preparation method comprises the following steps: respectively drying and mixing 60-75wt% of polylactic acid slices and 25-40wt% of graphene master batches to obtain a component A; drying the polylactic acidslices as a component B; respectively melting and extruding the component A and the component B, and then spinning together. The bicomponent composite fiber prepared by the graphene polylactic acid bicomponent composite fiber and preparation method and equipment thereof has obvious crimping effect, excellent elasticity and fluffiness, and good effects of strength, wear resistance, heat preservation, bacteriostasis and conduction.

A textile carding machine has a feed roller advancing a non-woven fibres to a separation roller. The foreign body separation hole is disposed in the discharge roller zone to separate the fiber and the foreign body. The outlet has a discharge passage with a discharge zone and an air flow zone. The foreign body outlet zone is disposed in the zone of foreign body separation hole and separated from the air flow zone. A curtain is arranged in the foreign body separation zone and air flow zone for the purpose of preventing against interference of the discharge of the foreign body inside the air flow.

The invention relates to a production method for refined hemp and regenerated cellulose fiber high-count blended yarns. The step comprises the following steps: 1, performing health-preserving pretreatment on hemp fibers, including using an oiling agent to uniformly spray the hemp fibers, performing conditioning and oil supply treatment on the hemp fibers; 2, performing a blowing-carding procedure, including (1) opening, (2) removing impurities, (3) blending, (4) uniformly coiling; 3, performing a cotton carding procedure, including performing cotton carding processing on hemp viscose fiber rolls through a carding machine, the hemp viscose fiber rolls being treated by a lapper; 4, performing a drawing and roving procedure, including sending drawing which is processed by combing and pre-drawing procedures to a roving frame, and the drawing winding into rough yarns through the roving frame; 5, performing a spun yarn procedure, including sending the rough yarns to a spinning frame which uses compact siro spinning double aprons to draft, the rough yarns being drawn, through drafting, twisting, and winding, the yarns forming spun yarn cops. Beneficial effects of the method are that the processing varieties of hemp fiber yarns are expanded, processing of high-proportion hemp and high-count hemp blended yarns is realized, and high-quality of yarns is realized.

The invention provides components, structures, methods, and assemblies for controlling sedimentation and debris flow associated with soil erosion. The invention also provides components, structures, methods, and assemblies that are useful for anchoring fiber rolls along a sloped surface.

The present invention discloses a fibre polishing wheel, which is prepared by the following mixture and fibre material: (a) the proportions of the mixture: 100 portions of natural latex, 0.5 portions of zinc oxide, 0.2 portions of age inhibitor DNP, 0.8 portions of age inhibitor 264, 0.3 portions of casein, 0.05 to 0.1 portions of potassium hydroxide, 0.5 portions of lanoline, 1 portion of accelerant PX, 1 portion of sulfur and 135.655 portions of sand; (b) the weight portion proportion of the fibre material and the mixture: 1 : 7 to 8; (c) the preparation method: (1) the zinc oxide, the age inhibitor DNP, the age inhibitor 264, the casein, the potassium hydroxide, the lanoline, the accelerant PX, the sulfur and the sand are uniformly mixed for later use; (2) The material of the first step is uniformly mixed with natural latex; (3) the material of the second step is uniformly mixed with the fibre material and then is squeezed in a rolling machine, so that the material is uniformly immerged into fibre; (4) the material-immerged fibre of the third step is rolled up and placed into a mould, which is then put into a thermotank and heated, and finally, after vulcanization, a finished product is obtained. The present invention has the advantage of that the polishing effect is obvious.

The invention relates to a polymer optical fiber preform stretching device, which adopts technical proposal that: the device comprises a tower frame, and a preform feed device, a heating stretching furnace, a diameter-measuring instrument, a main traction device, an annealing oven, a coating device and a fiber rolling device that are arranged on the tower frame, wherein the preform feeding device is arranged above the heating stretching furnace, the diameter-measuring instrument is arranged below the heating stretching furnace, the main traction device is arranged below the diameter-measuring instrument, the fiber rolling device is arranged below the coating device, the heating stretching furnace comprises a preform stretching area and a preform softening area, the preform stretching area is arranged above the preform softening area. The stretching device has the advantages of high yield and large-scale industrial production.

The invention relates to technology for processing soybean fiber and tencel fiber color-blended knitting fabric. Most of the knitting fabrics sold in market at present are dyed after textiles are prepared by weaving pure yarns or blended yarns. But the knitting fabrics prepared by blending soybean fibers and tencel fibers have poor dyeing effect if dyed by the conventional dyeing technology. The technology comprises the following steps of: opening the soybean fibers and tencel fibers, putting the soybean fibers and tencel fibers into dyeing solution mixed with DHF for 1 hour, carrying out thepreprocessing processes of raising the temperature, preserving the heat, reducing the temperature, dehydrating and the like, and preparing the soybean fibers and tencel fibers into soybean fiber and tencel fiber rolls by a blowing process; processing the soybean fiber and tencel fiber rolls into soybean fiber and tencel fiber strips on a carding machine provided with novel card covering; preparingthe soybean fiber and tencel fiber strips into blended yarns by roving and spinning processes; and weaving and finishing the blended yarns to obtain the color-blended knitting fabrics. The technologyhas the advantages of advanced technological method, strong feasibility, stable technology, good color effect of the fabrics, environmental protection and energy conservation and the like, and solvesthe problems.

The invention relates to a method for melting spinning and flexible blowing of fibers and a product thereof, in particular to a melting spinning method of random differential air cooling in spinning forming of clothing fibers and a product thereof. In the method provided by the invention, in the process of the melting spinning, the air speed of the air cooling is controlled by pulse signals to change according to a law that the air speed satisfies an equation V(t)=S+ sin omega t. The invention also provides a fiber, wherein the crimp elasticity recovery rate of the fiber is 85-98%; after being stretched, the fiber is three-dimensionally crimped; under the condition that the total drawing ratio is 1.4-5.5, the final fiber crimp number is 7-15/25mm; and the distribution number of the fiber crimp number in a range of 11-19/25mm is more than 50% of the total distribution ratio of the crimp number. In the invention, the method of air cooling differentiation is adopted at a key area of the melting spinning and cooling forming to ensure that the problem that the forming and the winding of polyamide precursor fibers can be normally carried out while the difference of internal crystal orientation of the fibers as well as the profile degree and the differentiation of the morphological structure of the polyamide fibers can be guaranteed is solved, therefore, the purpose of synthetic fiber simulation is achieved.

The invention discloses a halogen-free ammonia-free aerogel composite coiled material produced by a supercritical process. The aerogel composite coiled material has the density of 160-180 kg/m<3>, theheat conductivity coefficient of less than or equal to 0.018 W/(m.K), the hydrophobicity of more than or equal to 99.5% and the vibration mass loss rate of less than 0.1%. A preparation process of the aerogel composite coiled material comprises the following steps: S1, adding ethanol and water into tetraethoxysilane serving as a raw material, and keeping the temperature at 50 DEG C for 24 hours to obtain a first mixed solution; adding ammonia-free alkali into the modified organic silicon ester, ethanol and water to obtain a second mixed solution; S2, mixing the first mixed solution and the second mixed solution in proportion to obtain a third mixed solution, and immersing a fiber coiled material in the third mixed solution to form a gel composite coiled material; and S3, carrying out supercritical drying on the gel composite coiled material to obtain the halogen-free ammonia-free aerogel composite coiled material. The product does not contain halogen elements, does not volatilize ammonia-containing irritant gas at a high temperature, and can be used for heat insulation and preservation in an indoor high-temperature environment and fire prevention and heat insulation under a thermal instability condition.

The invention belongs to the technical field of the textile industry, and particularly relates to plasma modified waterproof oil-proof stain-proof fibers and a preparation method and application thereof. The preparation method of the plasma modified waterproof oil-proof stain-proof fibers comprises the following steps of: S1, respectively carrying out plasma treatment and waterproof oil-proof stain-proof treatment on single-stranded fibers; and S2, carrying out winding forming on the single-stranded fibers treated by the step S1. According to the invention, a waterproof oil-proof stain-proof agent and molecular chains of the fibers are combined in a mode of chemical bonds to form one whole body, so that not only are problems of washing resistance, endurance and durability solved, but alsoa cost problem and an environmental protection problem are solved. A double-knitted fabric formed by knitting the fibers disclosed by the invention and conventional fibers can implement a special fiber of which one side is waterproof and the other side absorbs water; by testing, before and after washing, the double-knitted fabric has wettability of over 5 levels, a stain release property of over 4to 5 levels and oil repellency of over 6 levels; and moreover, in the preparation process, by a new principle and a new process, flow is reduced, energy consumption is reduced, and cost is reduced.

The invention provides a method and device for testing the tensile strength of monofilaments. The method includes the steps of taking multiple samples from a fiber coil to be tested, wherein each sample comprises multiple monofilaments; conducting testing through a monofilament tensile tester to obtain tensile strength data of the monofilaments corresponding to each sample; averaging the tensile strength data of the monofilaments of all the samples to form the average values of the tensile strength of the monofilaments of the samples; secondarily averaging the average values of the tensile strength data of the monofilaments of all the samples, calculating the dispersion coefficient, and treating the dispersion coefficient as the parameter of the tensile strength of the monofilaments of the fiber coil to be tested. On the basis of the method and device, the test errors of the fiber strength can be reduced, and test efficiency can be improved.