A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition, each of the first and second regions being distinct in the bicomponent filaments; each bicomponent filament comprising 5 to 60 weight percent of the first polymer composition and 95 to 40 weight percent of the second polymer composition; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and the second polymer composition comprises modacrylic polymer being free of discrete carbon particles; the yarn having a total content of 0.1 to 5 weight percent discrete carbon particles.

A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition, each of the first and second regions being distinct in the bicomponent filaments; each bicomponent filament comprising 5 to 60 weight percent of the first polymer composition and 95 to 40 weight percent of the second polymer composition; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and the second polymer composition comprises modacrylic polymer being free of discrete carbon particles; the yarn having a total content of 0.1 to 5 weight percent discrete carbon particles.

A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition, each of the first and second regions being distinct in the bicomponent filaments; each bicomponent filament comprising 5 to 60 weight percent of the first polymer composition and 95 to 40 weight percent of the second polymer composition; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and the second polymer composition comprises modacrylic polymer being free of discrete carbon particles; the yarn having a total content of 0.1 to 5 weight percent discrete carbon particles.

A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a matrix of a first base polymer and particles dispersed within the matrix, and a shell portion comprising a same or a different base polymer. The consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional part, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament and retain the particles within the roads of the printed part and do not penetrate the outer surface of the shell portion.

A method for manufacturing a deodorant and antibacterial protective cloth includes: providing a first fiber thread and a second fiber thread, where the first fiber thread is a core-spun yarn formed by a blended slurry, a nano metal solution, a plurality of inorganic particles, and a plurality of thermoplastic polyurethane colloidal particles, the thermoplastic polyurethane colloidal particles are hot melted and then wrapped around a peripheral side of a core thread of the core-spun yarn for isolation from an outer wrapping layer of the core-spun yarn, and the second fiber thread is the same as the first fiber thread or is a single-thread yarn formed by the blended slurry and the nano metal solution; and intersecting and laminating the first fiber thread and the second fiber thread to form a plurality of bonding layers.

A method for manufacturing a deodorant and antibacterial protective cloth includes: providing a first fiber thread and a second fiber thread, where the first fiber thread is a core-spun yarn formed by a blended slurry, a nano metal solution, a plurality of inorganic particles, and a plurality of thermoplastic polyurethane colloidal particles, the thermoplastic polyurethane colloidal particles are hot melted and then wrapped around a peripheral side of a core thread of the core-spun yarn for isolation from an outer wrapping layer of the core-spun yarn, and the second fiber thread is the same as the first fiber thread or is a single-thread yarn formed by the blended slurry and the nano metal solution; and intersecting and laminating the first fiber thread and the second fiber thread to form a plurality of bonding layers.

The present invention relates to a method for producing hollow activated carbon nanofibers for activating peroxymonosulfate used in water purification; a catalyst for water purification comprising the hollow active carbon nanofibers produced by the method; and a method for purifying contaminated water using the catalyst. The production method of the present invention can easily produce hollow activated carbon nanofibers capable of rapidly purifying contaminated water by highly efficiently activating peroxymonosulfate used for water purification.

Skin-core structure fibers with both infrared and radar stealth, a preparation method therefor, and the use thereof are provided. The fibers are as follows: a core material of the skin-core structure fibers comprises the following raw materials in parts by weight: 10 parts of paraffin; 0.7-1.5 parts of an electromagnetic wave absorbent; and 1 part of a high-molecular polymer, wherein the electromagnetic wave absorbent is one or more of ferroferric oxide-intercalated graphene oxide, nano ferroferric oxide and carbon black, and wherein the skin-core structure fiber is obtained by spinning the core material with a skin-layer material.

Skin-core structure fibers with both infrared and radar stealth, a preparation method therefor, and the use thereof are provided. The fibers are as follows: a core material of the skin-core structure fibers comprises the following raw materials in parts by weight: 10 parts of paraffin; 0.7-1.5 parts of an electromagnetic wave absorbent; and 1 part of a high-molecular polymer, wherein the electromagnetic wave absorbent is one or more of ferroferric oxide-intercalated graphene oxide, nano ferroferric oxide and carbon black, and wherein the skin-core structure fiber is obtained by spinning the core material with a skin-layer material.

Methods and computer-readable mediums are provide that, in some embodiments maximize bending of an actuator and, in other embodiments, minimize bending of the actuator. For example, in one embodiment, a method is provided that designs and determines a Ratio1 for a first component. Ratio1 is a modulus of inertia for the first component divided by a Young's Modulus for the first component. Thereafter, a second component is designed that has a Ratio2 substantially equal to the Ratio1 of the first component. Ratio2 is a modulus of inertia for the second component divided by a Young's Modulus for the second component. Thereafter, the first component and the second component can be used to make an actuator that is spun into fiber to make products (e.g., batting material, woven material, a suture, a thermostat needle, a gel, etc.). Other embodiments are provided that utilize computer-readable medium.