A new technique for treating non-PAN-based pre-cursor polymeric fibers, tows, yarns, and films has been created for use in making stabilized pre-cursor polymers. By applying stepwise or non-stepwise microwave and/or ultraviolet radiation to the pre-cursor polymeric fibers, tows, yarn, or films prior to the stabilization thereof, a reduction in time for the costly stabilization process is achieved. Application of this technique extends to less-costly production of carbon fibers, for uses in industries such as automotive, aviation, trains, medical, military, sporting goods, orthopedics, and other industries. The pre-cursor polymeric fibers, tows, yarns, or films may be a multi-component polymer composite comprised of a non-PAN-based polymeric fiber, tow, yarn, or film and at least one or more constituent materials. Carbonization of such pre-cursor polymeric fibers, tows, yarns, or films results in less-costly carbon fibers that perform equally, if not better, than traditional costly PAN-based carbon fibers.

The invention relates to a method of fabricating a conductive fabric by vapor phase polymerization, a multi-pressure sensor for a fiber type, and a multi-pressure measuring method employing the multi-pressure sensor. The method of fabricating a conductive fabric by vapor phase polymerization provides a conductive fabric having a resistance value which changes depending on pressure applied by a user. The multi-pressure measuring method employing the multi-pressure sensor has high resistance to moisture and repeated loading, is manufactured with lower costs than existing pressure sensors, is capable of measuring both dynamic and static pressures using a principle of a piezo-resistive sensor, has a simple circuit configuration, and is strong against a high-frequency disturbance.

The invention relates to a fabrication method of a conductive fabric, a multi-pressure sensor for a fiber type, and a measuring method of multi-pressure, and more specifically, to a fabrication method by vapor phase polymerization of a conductive fabric having a resistance value which changes depending on pressure, and a method of manufacturing and operating a multi-pressure sensor for a fiber type which is manufactured by using the fabricated conductive fabric, and thus which has high resistance to moisture and repeated loading, is manufactured with lower costs than an existing pressure sensor, is capable of measuring both dynamic and static pressures using a principle of a piezo-resistive sensor, has a simple circuit configuration, and is strong against a high-frequency disturbance.

A high-strength thermal-stability polyester industrial yarn is prepared by spinning, winding and coordination treatment of a modified polyester after a solid-state polycondensation; wherein the method of coordination treatment comprises: soaking the wound fiber in an aqueous solution of a coordination agent, and the concentration of the aqueous solution of the coordination agent is 0.1-0.2 mol/L; wherein the condition of coordination treatment is 48-72 hours at 80-100 C., and the concentration of the aqueous solution of the coordination agent is 0.1-0.2 mol/L; wherein the polyester segments of the prepared high-strength thermal-stability polyester industrial yarn comprises a terephthalic acid segment, an ethylene glycol segment and a 2,6-pyridinedicarboxylic acid segment, and 2,6-pyridinedicarboxylic acid segments of different polyester segments are coordinated by Fe.sup.3+, the molar ratio of the terephthalic acid segment to the 2,6-pyridinedicarboxylic acid segment is 1:(0.03-0.05).

A high-strength creep-resistant polyester industrial yarn and preparation method thereof are provided. The high-strength creep-resistant polyester industrial yarn is prepared by spinning, winding and coordination treatment of a modified polyester after solid-state polycondensation to increase viscosity. The condition of coordination treatment is 60-72 hours at 80-100 C. The coordination agent is AgNO.sub.3, FeCl.sub.2, CuCl.sub.2, or NiCl.sub.2. The polyester segments of the prepared high-strength creep-resistant polyester industrial yarn includes a terephthalic acid segment, an ethylene glycol segment and a 2-(4-pyridine) terephthalic acid segment, and 2-(4-pyridine) terephthalic acid segments of different polyester segments are coordinated by metal ions (Ag.sup.+, Fe.sup.2+, Cu.sup.2+ or Ni.sup.2). The molar ratio of the terephthalic acid segment to the 2-(4-pyridine) terephthalic acid segment is 1:(0.03-0.05). The N atom on the pyridine of the 2-(4-pyridine) terephthalic acid segment is involved in coordination. Metal ions are coordinated with 2-(4-pyridine) terephthalic acid to greatly reduce the creep degree of the polyester fiber.

Electronic textiles and systems and processes associated therewith. A dual regime spray system allows the formation of electrically conductive polymers in-situ on the surface of substrates, such as various fabrics. The system mixes atomized streams of a monomer and a polymerization agent for the monomer in a mixing chamber where the polymerization reaction can start and then ejects droplets of the mixed monomer and a polymerization agent out of a nozzle and onto the substrate before the polymerization reaction is fully completed. The polymerization reaction can then complete after the droplets are on the substrate, thereby forming the electrically conductive polymer in-situ on the substrate. The system and process can be used to form electronic textiles that may form various wearable electronic components, such as sensors and luminescent strips, as part of wearable garments.

Electronic textiles and systems and processes associated therewith. A dual regime spray system allows the formation of electrically conductive polymers in-situ on the surface of substrates, such as various fabrics. The system mixes atomized streams of a monomer and a polymerization agent for the monomer in a mixing chamber where the polymerization reaction can start and then ejects droplets of the mixed monomer and a polymerization agent out of a nozzle and onto the substrate before the polymerization reaction is fully completed. The polymerization reaction can then complete after the droplets are on the substrate, thereby forming the electrically conductive polymer in-situ on the substrate. The system and process can be used to form electronic textiles that may form various wearable electronic components, such as sensors and luminescent strips, as part of wearable garments.

A metal-supported nonwoven fabric is provided which enables effective synthesis of a target product when used as a catalyst in a flow reaction. The metal-supported nonwoven fabric comprises a nonwoven fabric containing polyolefin fibers or PET fibers, and metal particles. The nonwoven fabric has grafted side chains bound thereto formed of polyvinylpyrrolidone, polyacrylic acid, or a polymer containing functional groups with unshared electron pairs. The metal particles are supported by the grafted side chains via pyrrolidone groups of the polyvinylpyrrolidone, carboxy groups of the polyacrylic acid, or the functional groups with unshared electron pairs.

A metal-supported nonwoven fabric is provided which enables effective synthesis of a target product when used as a catalyst in a flow reaction. The metal-supported nonwoven fabric comprises a nonwoven fabric containing polyolefin fibers or PET fibers, and metal particles. The nonwoven fabric has grafted side chains bound thereto formed of polyvinylpyrrolidone, polyacrylic acid, or a polymer containing functional groups with unshared electron pairs. The metal particles are supported by the grafted side chains via pyrrolidone groups of the polyvinylpyrrolidone, carboxy groups of the polyacrylic acid, or the functional groups with unshared electron pairs.