Provided is a method for splitting a carbon fiber tow, which comprises heating a carbon fiber tow sized with a first sizing material to soften the first sizing material and form a spread carbon fiber tow; passing the spread carbon fiber tow through at least one splitter and corresponding cutter to obtain multiple carbon fiber strands spaced apart; and sizing the carbon fiber strands with a second sizing material. With the method, multiple small carbon fiber tows having better tensile strength and/or modulus than the commercially available small carbon fiber tow products can be obtained. Products made of the small carbon fiber tows obtained by the present invention are lighter but stronger, and the production cost is relatively reduced. The present invention also achieves the purpose of energy saving and carbon reduction.

For example, provided is an RFID-bearing flexible material, in which an RFID is attached to a flexible material, the RFID includes an antenna portion, and the antenna portion is formed of a conductive linear body containing a carbon nanotube yarn.

For example, provided is an RFID-bearing flexible material, in which an RFID is attached to a flexible material, the RFID includes an antenna portion, and the antenna portion is formed of a conductive linear body containing a carbon nanotube yarn.

A nanofiber structure applicator is described that can remove two substrates from opposing major surfaces of a nanofiber structure. The two substrates can have differing adhesive strengths with the nanofiber forest. This difference in adhesive strength can be used to reorient nanofibers that form the nanofiber structure relative to the final surface on which they are applied. This reorienting of the individual nanofibers within a nanofiber structure can be used to tailor some of the properties of the nanofiber structure. Furthermore, the nanofiber structure applicator is configured can improve the convenience with which a nanofiber structure can be transported and applied to an application surface.

A nanofiber structure applicator is described that can remove two substrates from opposing major surfaces of a nanofiber structure. The two substrates can have differing adhesive strengths with the nanofiber forest. This difference in adhesive strength can be used to reorient nanofibers that form the nanofiber structure relative to the final surface on which they are applied. This reorienting of the individual nanofibers within a nanofiber structure can be used to tailor some of the properties of the nanofiber structure. Furthermore, the nanofiber structure applicator is configured can improve the convenience with which a nanofiber structure can be transported and applied to an application surface.

A toothed belt power-transmission apparatus includes: a toothed belt which includes a cord and a plurality of belt tooth portions; and a plurality of toothed pulleys which include a plurality of pulley tooth portions. The cord includes a carbon fiber cord formed by combining and secondarily twisting a plurality of primary twisted yarns including a carbon fiber. A twisting direction of a primary twist of the primary twisted yarns is the same as a twisting direction of the secondary twist. A primary twisting coefficient of the primary twist is 0.62 to 1.30. A secondary twisting coefficient of the secondary twist is 2.06 to 3.95. A tooth pitch of the toothed belt is within a range of −0.4% to +0.1% relative to a tooth pitch of the toothed pulley around which the toothed belt is wound.

A multifunctional smart garment textile is disclosed herein. It comprises plural conductive yarns, wherein each of the plural conductive yarns includes cotton threads, multiwalled carbon nanotubes and iodine-modified polypyrrole, and wherein the cotton threads, the multiwalled carbon nanotubes and the iodine-modified polypyrrole are intermingled with each other in a weight ratio ranging from 1:1:1 to 3:1:1.

A multifunctional smart garment textile is disclosed herein. It comprises plural conductive yarns, wherein each of the plural conductive yarns includes cotton threads, multiwalled carbon nanotubes and iodine-modified polypyrrole, and wherein the cotton threads, the multiwalled carbon nanotubes and the iodine-modified polypyrrole are intermingled with each other in a weight ratio ranging from 1:1:1 to 3:1:1.

Previous electrochemically-powered yarn muscles cannot be usefully operated between extreme negative and extreme positive potentials, since strokes during electron injection and during hole injection partially cancel because they are in the same direction. Unipolar-stroke carbon nanotube yarn muscles are described in which muscle strokes are additive between extreme negative and extreme positive potentials, and stroke increases with potential scan rate. These electrochemical artificial muscles include an electrically conducting twisted or coiled yarn and a material that dramatically shifts the potential of zero charge of the electrochemically actuated yarn.

Previous electrochemically-powered yarn muscles cannot be usefully operated between extreme negative and extreme positive potentials, since strokes during electron injection and during hole injection partially cancel because they are in the same direction. Unipolar-stroke carbon nanotube yarn muscles are described in which muscle strokes are additive between extreme negative and extreme positive potentials, and stroke increases with potential scan rate. These electrochemical artificial muscles include an electrically conducting twisted or coiled yarn and a material that dramatically shifts the potential of zero charge of the electrochemically actuated yarn.