• 专利标题:   Producing graphene particles by premixing e.g. polypropylene powder, antioxidant powder, lubricant and tourmaline powder to form premix, intermixing and fine mixing premix with polypropylene powder, pelletizing mixture and air-drying.
  • 专利号:   CN112662066-A
  • 发明人:   GU W
  • 专利权人:   JIANGSU MAIKUN FIBER TECHNOLOGY CO LTD
  • 国际专利分类:   B29B009/06, C08K003/04, C08K003/38, C08L101/04, C08L023/12
  • 专利详细信息:   CN112662066-A 16 Apr 2021 C08L-023/12 202146 Pages: 8 Chinese
  • 申请详细信息:   CN112662066-A CN11543768 24 Dec 2020
  • 优先权号:   CN11543768

▎ 摘  要

NOVELTY - Method for producing graphene particles involves (a) obtaining raw materials comprising 98.905-98.36 %mass polypropylene powder, 0.2-0.25 %mass antioxidant powder, 0.1-0.2 %mass lubricant, 0.46-0.5 %mass initiator, 0.3-0.6 %mass tourmaline powder, 0.025-0.05 %mass graphene and 0.01-0.04 %mass fluorine powder, (b) mixing the raw materials in a mixing device for 3 times by premixing involving mixing 20% of polypropylene and raw materials in the mixing device to form a premix, intermixing by adding 20% of polypropylene powder to the premix for intermixing to form an intermix and fine mixing by adding remaining 60% polypropylene powder to the intermix to form a fine mixture, (c) pelletizing, heating the fine mixture at 25 degrees C and extruding filaments through a screw extruder, (d) cooling the filament through a water tank, (e) air-drying through an air-drying device, and (f) pelletizing and cutting into pellets through a pelletizing device. USE - The method is useful for producing graphene particles.