Patent classifications
D01F6/26
Stabilized fiber, method of producing the same, and method of producing carbon fiber
A method of producing a stabilized fiber, including performing a heat treatment on an acrylamide polymer fiber under an oxidizing atmosphere in a stabilization treatment temperature range of 200° C. to 500° C. while applying a tension of 0.07 mN/tex to 15 mN/tex.
METHOD FOR PREPARATION OF PLASMA-TREATED NANOFIBER-BASED HYDROGEN GAS SENSING MATERIAL
The present disclosure provides a preparation method of a plasma-treated nanofiber-based hydrogen gas sensing material, including the following steps: (1) stirring a mixed solution of absolute ethanol, polyvinyl pyrrolidone (PVP), N, N-dimethylformamide, SnCl.sub.2.H.sub.2O, and Zn(CH.sub.3COO).sub.2.2H.sub.2O uniformly on a constant-temperature magnetic stirrer to obtain a spinning solution; (2) electrospinning the spinning solution and depositing on an aluminum foil to obtain a spinning fiber; (3) annealing the spinning fiber in a muffle furnace to obtain a hydrogen gas sensing material sample; and (4) subjecting the hydrogen gas sensing material sample to a vacuum argon plasma treatment with a Hall ion source to obtain the nanofiber-based hydrogen gas sensing material. In the method, nanofibers are prepared by electrospinning and subjected to the vacuum argon plasma treatment through the Hall ion source. The prepared sensing material has an extremely large specific surface area, and gas-sensing properties of rapid response and high sensitivity to hydrogen gas.
METHOD FOR PREPARATION OF PLASMA-TREATED NANOFIBER-BASED HYDROGEN GAS SENSING MATERIAL
The present disclosure provides a preparation method of a plasma-treated nanofiber-based hydrogen gas sensing material, including the following steps: (1) stirring a mixed solution of absolute ethanol, polyvinyl pyrrolidone (PVP), N, N-dimethylformamide, SnCl.sub.2.H.sub.2O, and Zn(CH.sub.3COO).sub.2.2H.sub.2O uniformly on a constant-temperature magnetic stirrer to obtain a spinning solution; (2) electrospinning the spinning solution and depositing on an aluminum foil to obtain a spinning fiber; (3) annealing the spinning fiber in a muffle furnace to obtain a hydrogen gas sensing material sample; and (4) subjecting the hydrogen gas sensing material sample to a vacuum argon plasma treatment with a Hall ion source to obtain the nanofiber-based hydrogen gas sensing material. In the method, nanofibers are prepared by electrospinning and subjected to the vacuum argon plasma treatment through the Hall ion source. The prepared sensing material has an extremely large specific surface area, and gas-sensing properties of rapid response and high sensitivity to hydrogen gas.
Stable catalyst ink formulations, methods of using such inks in fiber formation, and articles comprising such fibers
The present invention relates to stable catalyst ink formulations comprising am electrospinning polymer selected from halogen-comprising polymers. The present invention further relates to electrospinning of such ink formulation, to the so-obtained electrospun fibrous mat as well as to articles comprising such electrospun fibrous mat.
Stable catalyst ink formulations, methods of using such inks in fiber formation, and articles comprising such fibers
The present invention relates to stable catalyst ink formulations comprising am electrospinning polymer selected from halogen-comprising polymers. The present invention further relates to electrospinning of such ink formulation, to the so-obtained electrospun fibrous mat as well as to articles comprising such electrospun fibrous mat.
Process for producing water-absorbing polymer fibers
The invention relates to a process for producing water-absorbing crosslinked polymer fibers, especially micro- or nanofibers, by spinning process, especially electrospinning process and to fibers obtainable by this process.
Process for producing water-absorbing polymer fibers
The invention relates to a process for producing water-absorbing crosslinked polymer fibers, especially micro- or nanofibers, by spinning process, especially electrospinning process and to fibers obtainable by this process.
Polymer-graphene liquid crystal fiber and a carbon fiber produced by the same and method for manufacturing the same
Provided is a manufacturing method of a graphene-based liquid crystal fiber including: polymerizing a first aromatic monomer on a graphene-based compound to prepare a graphene composite in which a first aromatic polymer is surface-polymerized on the graphene-based compound; wet-spinning the graphene composite to manufacture a hydrogel fiber; and polymerizing a second aromatic monomer on the hydrogel fiber to fill pores of the hydrogel fiber with a second aromatic polymer.
HIERARCHICAL ORGANIC-INORGANIC COMPOSITES SYNTHESIZED BY ELECTROSPINNING FIBERS WITHIN A NON-CONDUCTIVE AND A CONDUCTIVE PRE-CERAMIC GEL
Methods for the production of ceramic composites in which three-dimensional (3D) printed organic polymer fibers are embedded in an amorphous inorganic ceramic matrix are provided. The composites are made by electrospinning the organic polymer fibers and collecting them in a liquid or gel collector. Ceramic precursors added to the liquid collector after the fibers are collected, or present in the gel collector during the electrospinning, are then cured to form a solid ceramic matrix around the organic polymer fibers to produce an organic polymer fiber-reinforced ceramic.
STABILIZED FIBER, METHOD OF PRODUCING THE SAME, AND METHOD OF PRODUCING CARBON FIBER
A method of producing a stabilized fiber, including performing a heat treatment on an acrylamide polymer fiber under an oxidizing atmosphere in a stabilization treatment temperature range of 200 C. to 500 C. while applying a tension of 0.07 mN/tex to 15 mN/tex.