• 专利标题:   Preparing composite conductive fiber comprises e.g. adding activated graphene, carboxylated carbon nanotubes, polypropylene chips, high-density polyethylene slices in high-speed mixer, spraying composite pellets on tray, and post-processing.
  • 专利号:   CN106012093-A, CN106012093-B
  • 发明人:   WANG D, YUAN Z, TANG S, TANG J, CHEN J, LIU D
  • 专利权人:   HUBEI HUAQIANG HIGHTECH CO LTD
  • 国际专利分类:   D01D005/08, D01F001/09, D01F008/06
  • 专利详细信息:   CN106012093-A 12 Oct 2016 D01F-008/06 201710 Pages: 9 Chinese
  • 申请详细信息:   CN106012093-A CN10344381 23 May 2016
  • 优先权号:   CN10344381

▎ 摘  要

NOVELTY - Preparing composite conductive fiber comprises e.g. (i) adding activated graphene, carboxylated carbon nanotubes, polypropylene chips, high-density polyethylene slices in a high-speed mixer, mixing in a twin-screw extruder, quenching extruded material in a water bath at 20-30 degrees C, tracking into the pelletizer section to obtain composite pellets, (ii) spraying composite pellets on a tray, spun pellets in a vertical melt spinning machine to obtain primary filament, and (iii) drying the primary filament, oiling, drafting roller drawing, and winding cones to obtain final product. USE - The method is useful for preparing composite conductive fiber (claimed). ADVANTAGE - The method is simple and is suitable for industrial production; and composite conductive fiber has good mechanical properties and electrical conductivity. DETAILED DESCRIPTION - Preparing composite conductive fiber comprises (i) adding activated graphene, carboxylated carbon nanotubes, polypropylene chips, high-density polyethylene slices in a high-speed mixer, mixing at 500-4000 revolution/minute speed for 3-35 minutes, where mass ratio between carboxylated carbon nanotube and graphene is 1:0.5-200, mass ratio between high-density polyethylene slice and polypropylene chips is 1:1-100, total mass fraction of the conductive filler composed of the activated graphene and carboxylated carbon nanotubes is 0.05-30%; fractionating mixture, mixing in a twin-screw extruder, quenching extruded material in a water bath at 20-30 degrees C, tracking into the pelletizer section to obtain composite pellets, (ii) spraying composite pellets on a tray, placing in a vacuum oven at 80-120 degrees C for 6-12 hours, spun pellets in a vertical melt spinning machine to obtain primary filament, and (iii) drying the primary filament, oiling, drafting roller drawing, and winding cones to obtain final product.