7results about "Conjugated artificial filaments" patented technology

A bicomponent or multicomponent fiber 3 is used for the manufacture of a composite part, comprising a reinforcing core 1 of a first material and at least one sheath 2 of a thermoplastic or prepolymerized thermosetting second material, the matrix of which consists of the material of said sheath 2, said first material having a degradation temperature, ignition temperature, glass transition temperature, melting temperature or liquidus temperature higher than the melting temperature, flow temperature or softening temperature of said second material, said reinforcing core 1 having a core volume fraction v defined as the volume fraction of the reinforcing core 1 in the bicomponent or multicomponent fiber 3. f with a core volume fraction v f is in the range of 0.3 to 0.8, and along the longitudinal axis Z of the bicomponent or multicomponent fiber, the outer surface 4 of the sheath 2 has a corrugated shape, preferably an irregular corrugated shape.

The application provides a skin-core structure glucose sensing fiber and a preparation method thereof, and belongs to the technical field of wearable colorimetric sensing. The skin-core structure glucose sensing fiber is prepared by a coaxial wet spinning process, wherein the fiber core layer is composed of a color developing functional material and a high molecular polymer, and the skin layer is composed of a composite enzyme and a high molecular polymer. The color developing agent in the color developing functional material is coated by a sensitizer, which not only solves the problem that the color developing agent is difficult to disperse uniformly in an aqueous solvent, but also protects the color developing agent from directly contacting with the external environment, thereby preventing the generation of false negative or false positive conditions. Meanwhile, the color developing functional material as the core layer further avoids the generation of false negative or false positive conditions. The skin layer and the core layer adopt a specific polymer as a spinning base material, so that the color developing reaction can be rapidly generated, and the sensitivity is improved. The prepared skin-core structure glucose sensing fiber can be used for glucose detection in biological body fluids (blood, sweat, urine and tissue fluid).

This metal nonwoven fabric comprises a metal fiber and is liquid permeable. An average fiber diameter of the metal fiber is between 20 nm and 10 µm both inclusive. In the metal nonwoven fabric, a distribution peak top diameter of voids measured according to the mercury porosimetry method is 30 µm or less. In the metal nonwoven fabric, a distribution peak top diameter of voids measured according to the mercury porosimetry method is preferably 0.01 µm or greater. Where the length of a metal crystal constituting the metal fiber along the extending direction of the metal fiber is X, and the length along a direction orthogonal to said direction is Y, an arithmetic mean value of the value of X / Y, which is the ratio of X to Y, is preferably 4 or less at three points in boundary regions that are obtained by dividing the length along the extending direction of the metal fiber into four equal parts.

An optical element is provided. The optical element includes a polymer film having at least one layer comprised of fibers containing a plurality of fluorophores. The fluorophores have a quantum yield greater than 20 percent.

This invention provides a multi-component hydrogel thermally conductive composite material, its preparation method, and its applications. The multi-component hydrogel thermally conductive composite material comprises a multi-component hydrogel framework and a filling hydrogel layer; the filling hydrogel layer forms a secondary cross-linked network structure with the multi-component hydrogel framework; the multi-component hydrogel framework is an electrospun layer comprising components including sodium alginate and photomodified biomaterials; the filling hydrogel layer is obtained by casting a solution containing components including acrylamide and a photoinitiator onto the multi-component hydrogel framework and performing two cross-linking operations. The multi-component hydrogel thermally conductive composite material prepared by this invention has adjustable thermal conductivity, diverse thermal conduction pathways, low interfacial thermal resistance, and good mechanical properties, making it suitable for a wide range of applications. Due to its good biocompatibility, it is particularly suitable as a thermally conductive material for flexible wearable electronic products, mobile phone heat dissipation shells, and other applications.

A method for preparing a membrane, comprising: dispersing preformed polymer nanofibers in at least one first solvent to form a dispersion; spraying or coating the dispersion on a surface of a substrate to form a nanofiber-based structure on the surface of the substrate; and evaporating the at least one first solvent in the nanofiber-based structure to produce the membrane, wherein the membrane has pores.

The application provides an automatic humidity adjusting type functional fiber membrane based on intelligent temperature sensing and a preparation method thereof. The method is to construct a new type of instantaneous free radical integrated polymerization gel composite fiber layer on the surface of the padding finished intelligent temperature sensing fiber membrane, and the two are organically combined to form a "double intelligent response system" functional fiber membrane finished product. Overall, the intelligent response characteristics of wash-resistant, wear-resistant, low temperature moisture absorption and high temperature one-way moisture transfer are realized, so that the raw fiber becomes a functional intelligent fiber fabric with excellent moisture permeability, air permeability, wear resistance and other multiple protection functions, and can realize wash-resistant ability and ultra-light design.