The present disclosure relates to a non-woven fabric made from a fiber coated with a binder polymer by spinning a non-woven forming fiber in an organic binder polymer compound solution, an electrochemical cell using the non-woven fabric as a separator substrate, and a method of making the non-woven fabric, and the non-woven fabric has a pore diameter in a range of 0.001 to 10 ?m, thereby providing a mechanical property required for a separator while ensuring a favorable movement of a lithium ion, and in the use of the non-woven fabric as a separator of an electrochemical cell, eliminating a need for a process of applying a separate adhesive layer, resulting in an effect of simplifying a separator manufacturing process.

Provided are a nanofiber-nanowire composite and a method for producing the same. The method includes preparing a nanoparticle using a dipolar solvent, producing a nanofiber-nanoparticle composite in an electrospinning synthesis solution including the nanoparticle through electrospinning, and growing a nanowire from the nanoparticle by hydrothermally synthesizing a dried nanofiber-nanoparticle composite.

Provided is a hyaluronate fiber, and more particularly to a hyaluronate fiber, suitable for use in a surgical suture, a filler for cosmetic surgery, a lifting thread, a tissue-engineering scaffold, etc., and a method of manufacturing the same. Further, a method of manufacturing the hyaluronate fiber through melt spinning is provided, which includes (a) controlling the water content of a hyaluronate having a weight average molecular weight of 5003,000 kDa to 520%, (b) producing a hyaluronate fiber by placing the hyaluronate having a controlled water content in a melt-spinning apparatus and performing heating to 150200 C. and then high-pressure spinning, and (c) hardening the surface of the hyaluronate fiber by immersing the hyaluronate fiber in an ethanol aqueous solution.

Provided is a hyaluronate fiber, and more particularly to a hyaluronate fiber, suitable for use in a surgical suture, a filler for cosmetic surgery, a lifting thread, a tissue-engineering scaffold, etc., and a method of manufacturing the same. Further, a method of manufacturing the hyaluronate fiber through melt spinning is provided, which includes (a) controlling the water content of a hyaluronate having a weight average molecular weight of 5003,000 kDa to 520%, (b) producing a hyaluronate fiber by placing the hyaluronate having a controlled water content in a melt-spinning apparatus and performing heating to 150200 C. and then high-pressure spinning, and (c) hardening the surface of the hyaluronate fiber by immersing the hyaluronate fiber in an ethanol aqueous solution.

A gas phase surface treatment for treating carbon fiber including (a) exposing a carbon fiber to a gaseous oxidizing atmosphere to form a modified carbon fiber with an oxidized fiber surface; followed by (b) exposing the oxidized fiber surface to a gaseous nitrogen-containing atmosphere to form a modified carbon fiber with a nitrogen-enriched surface, wherein the nitrogen-enriched surface exhibits an increase in surface nitrogen to surface carbon (N/C) ratio as compared to the surface of the carbon fiber prior to exposure at (a). Steps (a) and (b) are carried out continuously without any additional intervening surface treatment.

The present invention provides a production method of copper-carbon nanofibers, which can realize oxidation-resistant characteristics and process simplification, the production method comprising the steps of: forming a metal precursor-organic nanofiber comprising a metal precursor and an organic substance; and forming a metal-carbon nanofiber by performing a selective oxidation heat treatment to the metal precursor-organic nanofiber so as to simultaneously oxidize carbon of the organic substance and reduce the metal precursor to a metal, wherein the metal has a lower oxidation resistance than the carbon; the selective oxidation heat treatment is performed through a singly heat treatment step, not a plurality of heat treatment steps; and metal-carbon nanofibers with different structures may be formed according to the amount of partial oxygen pressure under which the selective oxidation heat treatment is performed.

The present invention provides a production method of copper-carbon nanofibers, which can realize oxidation-resistant characteristics and process simplification, the production method comprising the steps of: forming a metal precursor-organic nanofiber comprising a metal precursor and an organic substance; and forming a metal-carbon nanofiber by performing a selective oxidation heat treatment to the metal precursor-organic nanofiber so as to simultaneously oxidize carbon of the organic substance and reduce the metal precursor to a metal, wherein the metal has a lower oxidation resistance than the carbon; the selective oxidation heat treatment is performed through a singly heat treatment step, not a plurality of heat treatment steps; and metal-carbon nanofibers with different structures may be formed according to the amount of partial oxygen pressure under which the selective oxidation heat treatment is performed.

The present invention provides a polymer product and a method for preparing the polymer product comprising electrospinning from a dope solution comprising at least one polymer and at least one cross-linking agent to prepare and/or fabricate the polymer product. In certain embodiments, the cross-linking agent comprises at least one catecholamine or at least one polyphenol, wherein the method comprises (i) electrospinning the biocompatible polymer product using a dope solution comprising a polymer and at least one catecholamine or at least one polyphenol and (ii) exposing the polymer product to at least one gaseous alkaline reagent. The dope solutions and polymer products of the invention can further include antimicrobial agents, metal ions, and other substances.

A swellable polymer based fiber and a method of preparing the same optionally comprising glycol, lecithin and optionally an antimicrobial metal species suitable, for example, for medical applications including wound dressings. A method of manufacture may comprise fiber extrusion or spinning involving one or a plurality of in-series coagulation baths to add single or multiple antimicrobial metal species to the as-formed fiber.

A preparation method and application of a titanium nitride fiber-enhanced quasi-solid-state electrolyte, which relates to a synthetic method and application of a solid-state electrolyte. The object of the present disclosure is to solve the problem that the existing polymer electrolyte has low ionic conductivity, poor lithium ion transference number, and insufficient inhibition of lithium dendrite growth. The method includes the following steps: 1. preparation of TiN nanofiber, and 2. preparation of electrolyte. The TiN nanofiber-enhanced electrolyte is used as a solid-state electrolyte of lithium ion batteries. The electrolyte material provided by the present disclosure has excellent rate performance, high cycle stability, and long-term cycle life. In the present disclosure, a TiN nanofiber-enhanced quasi-solid-state electrolyte can be obtained.