41results about How to "Increase entanglement" patented technology

The invention discloses a processing method for a multilayer composite sized down feather flocculus, and the method comprises the following steps of: mixing cotton, namely mixing 10-70wt% of down feather fiber with 90-30wt% of low-melting-point fiber by virtue of a mixer so as to respectively obtain a high-down-feather-content mixture and a low-down-feather-content mixture; and opening, carding, lapping, carrying out acupuncture reinforcing, and carrying out hot melting, bonding and reinforcing. An acupuncture reinforcing manner is adopted, so that the bulking intensity of a fiber mesh is effectively controlled, and entanglement between fibers is enhanced, thus the down feather is effectively controlled, and play of flying feather and the down feather is reduced; and multi-consolidation is carried out by adopting a method that acupuncture is firstly carried out and then hot melting is carried out, so that control over the down feather is effectively improved, and the stability of the down feather flocculus is improved.

The invention relates to a high-permeability mask nonwoven fabric, which is utilized as a base material of products, such as masks, has high-efficiency skin-closed permeability and toughness, is soft and delicate and has higher hydrophilia, and a manufacturing method of the high-permeability mask nonwoven fabric. The high-permeability mask nonwoven fabric is manufactured by the following steps of by utilizing cellulosic fiber with the length of 5-25mm as a raw material, through a high-pressure pre-spunlace head of a forming machine, carrying out pre-spunlace winding on a fiber web on a formed web, carrying out main spunlace reinforcing and winding, drying and coiling.

A novel method and apparatus for long distance quantum communication in realistic, lossy photonic channels is disclosed. The method uses single emitters of light as intermediate nodes in the channel. One electronic spin and one nuclear spin coupled via the contact hyperfine interaction in each emitter, provide quantum memory and enable active error purification. It is shown that the fixed, minimal physical resources associated with these two degrees of freedom suffice to correct arbitrary errors, making our protocol robust to all realistic sources of decoherence. The method is particularly well suited for implementation using recently-developed solid-state nano-photonic devices.

The present invention provides an improved method and device for producing an alternate S/Z twist plied braid and joined alternate S/Z twist plied yarns. The invention further provides an alternate S/Z twist plied braid and joined alternate S/Z twist plied yarns produced according to a process of the invention.

A method of making a polarizable electrode for an electric double layer capacitor, includes adding a binder assistant to a binder so that the binder is swollen and mixing a carbonaceous powder, a conductive assistant and thereafter the swollen binder, thereby obtaining a material mixture, kneading the material mixture into a primary forming material, forming the primary forming material into a secondary forming material, and rolling the secondary forming material into a sheet shape.

The invention discloses nylon modified ultra-molecular weight polyethylene blending material, and relates to a high-temperature-resisting and easy-processing polyethylene modified material. The invention aims to solve the problem of poor heat resistance and bad surface hardness of the existing UHMW-PE. The nylon modified ultra-molecular weight polyethylene blending material is prepared by dried PA6, pretreated UHMW-PE, nucleating agent and solubilizer. The nylon modified ultra-molecular weight polyethylene blending material has the advantages that the nylon modified ultra-molecular weight polyethylene blending material prepared by taking high molecular compatible technology and taking PA6, pretreated UHMW-PE, nucleating agent and solubilizer as raw materials has good binding force, and thebinding force between interface layers is enlarged; vicat softening temperature reaches 195 DEG C, and shore hardness reaches 102. The entanglement degree is increased. The invention is mainly applied to prepare the nylon modified ultra-molecular weight polyethylene blending material.

The invention provides a black phosphorene modified and fibroin filled porous composite gel material and a preparation method thereof. The preparation method concretely comprises the following steps of adding a black phosphorene solution in a fibroin solution, and performing stirring to obtain a black phosphorene modified fibroin solution; putting the black phosphorene modified fibroin solution ina polytetrafluoroethylene die, performing drying to form a film, then adding the film in a formic acid aqueous solution, and performing uniform stirring to obtain a modified black phosphorene modified fibroin solution; and inserting a positive electrode into a porous material, putting the porous material in the modified black phosphorene modified fibroin solution, inserting a negative electrode,introducing constant voltage, embedding a black phosphorene modified fibroin filling material into the porous material through a mode of electro-gel after electro-gel treatment, and taking out the black phosphorene modified fibroin filling material to obtain the black phosphorene modified and fibroin filled porous composite gel material. As for the prepared fibroin composite, by combining a porousstructure with a gel technology, the wettability and the biocompatibility are almost unchanged, and the mechanical performance is remarkably strengthened.

An extensible nonwoven fabric, and method for its manufacture, on which the source, medicinal component, pattern and/or other pieces of information are recognizable at the beginning of and during fabric use. It is made mainly of highly crimped fibers, with a compressed region where no fibers are melted and bonded together, with a tensile strength of 25 N/5-cm-width or more in both the machine direction and the cross direction. It may be manufactured by causing a water jet having a pressure of 5 MPa or more to act onto a web made mainly of a latent crimpable fiber, forming an entangled fiber web, causing heat to act on it, crimping the fiber converting it to a highly crimped fiber while contracting the web's area by 30% or more forming a contracted fiber web, and embossing it such that the fibers are not melted and bonded together.

The invention discloses a lithium ion capacitor diaphragm and a production method thereof. The production method comprises the following process steps: (1) preparing polyvinylidene fluoride, N, N-dimethylformamide, acetone and TBAPF6 according to a certain proportion, and uniformly stirring; (2) preparing a polyvinylidene fluoride nanofiber membrane doped with TBAPF6 by utilizing an electrostaticspinning technology; and (3) drying the polyvinylidene fluoride nanofiber membrane doped with TBAPF6 in a vacuum drying oven. Compared with the prior art, the preparation method disclosed by the invention is simple in process and high in production efficiency, and the prepared TBAPF6-doped polyvinylidene fluoride polymer diaphragm for the lithium ion capacitor has a special multi-scale fiber network structure, good lyophilicity, excellent mechanical properties and excellent thermal properties, is beneficial to enhancing the ionic conductivity of the diaphragm, improving the compatibility between the diaphragm and an electrode and improving the cycling stability of a capacitor, and can be applied to the fields of new energy automobiles, intelligent electronic products and the like.

The invention provides a high-strength, anti-flaming and waterproof polyimide fire control fabric and a preparation method thereof. The high-strength, anti-flaming and waterproof polyimide fire control fabric is a plain weave fabric, the surface density is 180-280 gsm, the high-strength, anti-flaming and waterproof polyimide fire control fabric is woven by blending polyimide filaments and polyimide yarn, the polyimide filaments are evenly woven in the warp direction and the weft direction, through calculation by weight percent, the percent of the polyimide filaments is 10%-50%, the percent ofthe polyimide yarn is 50%-90%, and the sum of the percents is 100%. The polyimide filaments are prepared by stranding, splicing and twisting two or more bundles of fine denier polyimide fiber filaments with special-shaped sections. The polyimide fire control fabric has good tensile failure strong performance, anti-fuzzing-pilling performance and anti-flaming performance.

The invention discloses a deep-adsorption and high-moisture-retention mask and a production method thereof, and relates to the technical field of masks. A special production system is adopted in the production process, and the deep-adsorption and high-moisture-retention mask comprises an opening device, a carding device, a lapping device and a spunlace device; the spunlace device comprises a rotary screen roller, a plurality of guide rollers are arranged on the two sides of the rotary screen roller, a spunlace head assembly is arranged on one side of the rotary screen roller, a plurality of spunlace heads are arranged on the spunlace head assembly, and the spunlace heads are distributed in an arc array around the rotary screen roller. According to the deep-adsorption and high-moisture-retention mask and the production method thereof, the compactness of fibers in a mask material is improved, intertwining degree among the fibers is increased, and the content of effective matrixes adsorbed in the mask is increased.

The invention provides spunlace jacquard non-woven fabric and a production method thereof and relates to the technical field of nonwoven fabric production. The spunlace jacquard non-woven fabric is mainly produced by three-dimensional hollow crimped fibers, polypropylene fibers and common polyester staple fibers, wherein the three-dimensional hollow crimped fibers have curled arcs and are large incurvature radius and less prone to fatigue yield generation when being subjected to repeated compressive deformation; the common polyester staple fibers can increase the twist degree of the nonwovenfabric; the polypropylene fibers can increase the strength of the nonwoven fabric to allow the spunlace jacquard non-woven fabric to be less prone to deformation. By the arrangement, the spunlace jacquard non-woven fabric is high in static resistance, good in compression elasticity, high in fluffiness, good in dust collection effect and the like.

The invention provides a preparation method of a nylon modified ultra high molecular weight (UHMW) polyethylene (PE) blended material and relates to a preparation method of a high-temperature-resisting and easy-to-process polyethylene modified material, aiming at solving the problems of UHMW-PE prepared in the prior art that the heat resistance is poor and the surface rigidity is poor. The preparation method comprises the following steps: 1, pre-treating to obtain pre-treated UHMW-PE; 2, drying to obtain dry PA6 (Polyamide 6); 3, preparing a raw material; 4, sequentially adding the materials into a high-speed mixing machine and uniformly mixing; then extruding and molding a uniformly-mixed material mixture by utilizing a same-direction rotary double-screw extruder, so as to obtain the nylon modified ultra high molecular weight polyethylene blended material. The preparation method provided by the invention has the advantages that a high molecular compatibilization technology is adoptedso that the binding force is good and the binding force between interface layers is increased; the Vicat softening temperature reaches 195.8 DEG C and the Shore hardness reaches 103. The preparation method provided by the invention is mainly used for preparing the nylon modified ultra high molecular weight polyethylene blended material.

The invention provides a high-rigidity and high-toughness modified PMMA material, which comprises, by mass, 52-90% of a PMMA resin, 5-40% of a toughening agent, 1-5% of a compatilizer, 0.1-1% of a weather-resistant agent, 0.1-1% of an antioxidant, and 0.1-1% of a lubricant. According to the invention, the SGMA and the PMMA side chain are subjected to a transesterification reaction, so that the molecular entanglement degree of the PMMA base material can be improved, and the light resistance and the scratch resistance of the product are improved; and toughening and compatibilizing are performedby using the terpolymer to achieve the bidirectional action, so that the efficient toughening agent does not need to be added excessively while the toughening is performed so as to achieve the purposeof less addition.