Disclosed are a non-woven fabric composite and an article including the same. The disclosed non-woven fabric composite includes an at least partially electrostatically treated meltblown non-woven layer and a spunbond non-woven layer disposed on one or both sides thereof, pressure loss is less than 5.0 mmH.sub.2O, and a size of the pilling mass after the Martindale abrasion test is less than 5 mm.

Disclosed are a non-woven fabric composite and an article including the same. The disclosed non-woven fabric composite includes an at least partially electrostatically treated meltblown non-woven layer and a spunbond non-woven layer disposed on one or both sides thereof, pressure loss is less than 5.0 mmH.sub.2O, and a size of the pilling mass after the Martindale abrasion test is less than 5 mm.

According to the present disclosure, a method of fabricating a metal-carbon fibrous structure is provided. The method comprises the steps of: (a) forming a fibrous support structure comprising composite nanocrystals and polymeric fibers, wherein each of the composite nanocrystals comprises metal ions connected by organic ligands; (b) growing the composite nanocrystals on the fibrous support structure; and (c) subjecting the fibrous support structure of step (b) to carbonization to form the metal-carbon fibrous structure, wherein the metal-carbon fibrous structure comprises metal nanoparticles derived from the composite nanocrystals. A metal-carbon fibrous structure comprising carbon based fibers arranged to form a porous network and the carbon based fibers are doped with metal nanoparticles, wherein the carbon based fibers have surfaces which comprise graphitic carbon, is also disclosed herein.

According to the present disclosure, a method of fabricating a metal-carbon fibrous structure is provided. The method comprises the steps of: (a) forming a fibrous support structure comprising composite nanocrystals and polymeric fibers, wherein each of the composite nanocrystals comprises metal ions connected by organic ligands; (b) growing the composite nanocrystals on the fibrous support structure; and (c) subjecting the fibrous support structure of step (b) to carbonization to form the metal-carbon fibrous structure, wherein the metal-carbon fibrous structure comprises metal nanoparticles derived from the composite nanocrystals. A metal-carbon fibrous structure comprising carbon based fibers arranged to form a porous network and the carbon based fibers are doped with metal nanoparticles, wherein the carbon based fibers have surfaces which comprise graphitic carbon, is also disclosed herein.

Hybrid carbon nanofiber (Cnf) products (e.g., mats, yarns, webs, etc.) and methods of fabricating the same are provided. The hybrid Cnf products are flexible and lightweight and have high thermal conductivity. An electrospinning process can be used to fabricate the hybrid Cnf products and can include preparation of an electrospinning solution, electrospinning, and carbonization (e.g., under a vacuum condition).

Hybrid carbon nanofiber (Cnf) products (e.g., mats, yarns, webs, etc.) and methods of fabricating the same are provided. The hybrid Cnf products are flexible and lightweight and have high thermal conductivity. An electrospinning process can be used to fabricate the hybrid Cnf products and can include preparation of an electrospinning solution, electrospinning, and carbonization (e.g., under a vacuum condition).

A non-woven fabric composite and an article including the same are provided. The non-woven fabric includes an electrostatically treated meltblown non-woven fabric layer and a spunbond non-woven fabric layer on one or both sides thereof, and has a fine dust removal performance retention ratio, represented by Equation 1, of 80% or more:

Fine dust removal performance retention ratio (%)=(fine dust removal efficiency after accelerated aging treatment)/(fine dust removal efficiency before accelerated aging treatment)×100  [Equation 1]

wherein, in this equation, the fine dust is an aerosol containing sodium chloride dispersed in air, and the accelerated aging treatment refers to a case where the non-woven fabric composite is stored at a temperature of 70° C. for 3 days.

A non-woven fabric composite and an article including the same are provided. The non-woven fabric includes an electrostatically treated meltblown non-woven fabric layer and a spunbond non-woven fabric layer on one or both sides thereof, and has a fine dust removal performance retention ratio, represented by Equation 1, of 80% or more:

Fine dust removal performance retention ratio (%)=(fine dust removal efficiency after accelerated aging treatment)/(fine dust removal efficiency before accelerated aging treatment)×100  [Equation 1]

wherein, in this equation, the fine dust is an aerosol containing sodium chloride dispersed in air, and the accelerated aging treatment refers to a case where the non-woven fabric composite is stored at a temperature of 70° C. for 3 days.

A system and method for providing a plurality of fibers from a spinneret; subjecting the fibers to quench air; attenuating the fibers through a closed stretching unit; reducing a velocity of the plurality of fibers in a diffuser that is spaced apart from an exit of the closed stretching unit in a direction of travel of the fibers, the diffuser having opposed diverging sidewalls; and subjecting the fibers to an applied electrostatic charge before the fibers enter the diffuser, wherein the electrostatic charge is applied by one or more electrostatic charging units.

A cushioning network structure comprising a plurality of random loops arranged in a three-dimensional orientation, wherein the plurality of random loops are formed from an ethylene/a-olefin interpolymer composition having a highest DSC temperature melting peak in the range of from 90.0° C. to 115.0° C.; a zero shear viscosity ratio (ZSVR) in the range from 1.40 to 2.10; a density in the range of from 0.860 to 0.925 g/cc, a melt index (12) in a range of from 1 to 25 g/10 minutes when measured according to ASTM D1238 at 190° C. and 2.16 kg, a molecular weight distribution (Mw/Mn) in the range of from 2.0 to 4.5.