Provided are a method of manufacturing MXene fibers and MXene fibers manufactured therefrom, wherein the method includes a) preparing a dispersion including MXenes; and b) spinning the dispersion in a coagulation solution to obtain MXene fibers.

Provided are a method of manufacturing MXene fibers and MXene fibers manufactured therefrom, wherein the method includes a) preparing a dispersion including MXenes; and b) spinning the dispersion in a coagulation solution to obtain MXene fibers.

Disclosed is a method for preparation and activation of a super hydrophobic electret nanofibrous filter material for cleaning PM2.5, comprising the steps as follows: (1) dissolving polymer powders and resin into a corresponding solvent so as to prepare a polymer solution, then stirring on a magnetic stirrer and standing for use; (2) in order to reinforce the electrostatic effect of the fiber, before preparing the polymer solution, adding in organic electret nanoparticles into the solvent, then oscillating with an ultrasonic oscillator; (3) in order to reinforce the super hydrophobic effect of the filter, spraying a low surface energy solution on the prepared nanofiber with a designed nozzle to carry out modification.

Disclosed is a thread combining multiple polymers. The thread consists of fibers of a first synthetic polymer of the Polyethylene terephthalate (PET) family and fibers of a second synthetic polymer of the Polyimide family, wherein the first fibers and the second fibers are combined together such that the resulting material, forming the thread, blocks photons with wavelengths falling within a first range of wavelengths and allows passage of photons with wavelengths falling within a second range of wavelengths. Photons whose wavelengths are within the second range of wavelengths, allowed to pass by the resulting material, may contribute to tanning of human skin.

Disclosed is a thread combining multiple polymers. The thread consists of fibers of a first synthetic polymer of the Polyethylene terephthalate (PET) family and fibers of a second synthetic polymer of the Polyimide family, wherein the first fibers and the second fibers are combined together such that the resulting material, forming the thread, blocks photons with wavelengths falling within a first range of wavelengths and allows passage of photons with wavelengths falling within a second range of wavelengths. Photons whose wavelengths are within the second range of wavelengths, allowed to pass by the resulting material, may contribute to tanning of human skin.

A meltblown nonwoven fabric is provided. The meltblown nonwoven fabric includes a plurality of meltblown fibers adhered to each other. The material of each of the meltblown fibers includes a polyetherimide and a polyimide, or the material of each of the meltblown fibers includes a polyphenylene sulfide and a polyimide, wherein the glass transition temperature of the polyimide is between 128° C. and 169° C., the 10% thermogravimetric loss temperature of the polyimide is between 490° C. and 534° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and the solid content of the polyimide is 30 wt %, the viscosity of the polyimide is between 100 cP and 250 cP.

A meltblown nonwoven fabric is provided. The meltblown nonwoven fabric includes a plurality of meltblown fibers adhered to each other. The material of each of the meltblown fibers includes a polyetherimide and a polyimide, or the material of each of the meltblown fibers includes a polyphenylene sulfide and a polyimide, wherein the glass transition temperature of the polyimide is between 128° C. and 169° C., the 10% thermogravimetric loss temperature of the polyimide is between 490° C. and 534° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and the solid content of the polyimide is 30 wt %, the viscosity of the polyimide is between 100 cP and 250 cP.

Methods are disclosed which combine electrospinning and a sacrificial template, such as with additive manufacturing (AM), to produce fibrous microvascular scaffolds which are biodegradable, porous, and easily handled. In one example, a process for fabricating a fibrous network construct is disclosed. The method includes electrospinning a first layer of fibrous material; printing a micropatterned sacrificial template; transferring the micropatterned sacrificial template onto the electrospun fibers; electrospinning a second layer of fibrous biomaterial onto the micropatterned sacrificial template thereby encapsulating the template and generating a construct with two layers; and removing the sacrificial template, producing a fibrous construct with channels or microstructures formed therein. Also disclosed are fibrous constructs and scaffolds produced by the provided methods.

Methods are disclosed which combine electrospinning and a sacrificial template, such as with additive manufacturing (AM), to produce fibrous microvascular scaffolds which are biodegradable, porous, and easily handled. In one example, a process for fabricating a fibrous network construct is disclosed. The method includes electrospinning a first layer of fibrous material; printing a micropatterned sacrificial template; transferring the micropatterned sacrificial template onto the electrospun fibers; electrospinning a second layer of fibrous biomaterial onto the micropatterned sacrificial template thereby encapsulating the template and generating a construct with two layers; and removing the sacrificial template, producing a fibrous construct with channels or microstructures formed therein. Also disclosed are fibrous constructs and scaffolds produced by the provided methods.

[Problem] To provide: a carbon fiber precursor fiber that can efficiently produce a carbon fiber at a low cost which is excellent in mechanical strengths even without an infusibilization treatment; a carbon fiber; and a method for producing the carbon fiber.

[Solution] A carbon fiber precursor fiber of the present invention includes a polymer containing a constituent unit represented by General Formula (1) below:

##STR00001## where in the General Formula (1), X and Y each independently represent a divalent substituent, a single bond, or a structure forming a fused ring by sharing one side of two adjacent rings, and the divalent substituent is selected from the group consisting of O, S, OSO, NH, CO, CH.sub.2, and CH(CH.sub.3).sub.2.