• 专利标题:   Graphene-metal composite powder modified nylon for light emitting diode bulbs and printed circuit boards, comprises liquid polyamide-6, ceramic powder, metal powder, graphene, calcium stearate, aluminum acetate and antioxidants.
  • 专利号:   CN105462246-A, CN105462246-B
  • 发明人:   LIANG C
  • 专利权人:   GUANGDONG JUSHI CHEM CO LTD, GUANGDONG POLYROCKS CHEM CO LTD
  • 国际专利分类:   B29C047/92, C08K013/06, C08K003/04, C08K003/08, C08K003/38, C08K005/098, C08K009/06, C08L023/08, C08L077/02
  • 专利详细信息:   CN105462246-A 06 Apr 2016 C08L-077/02 201636 Pages: 7 English
  • 申请详细信息:   CN105462246-A CN11015782 30 Dec 2015
  • 优先权号:   CN11015782

▎ 摘  要

NOVELTY - Graphene/metal composite powder modified nylon comprises 35-45 pts. wt. of liquid polyamide-6, 15-30 pts. wt. of ceramic powder, 30-40 pts. wt. of metal powder, 0.5-2 pts. wt. of graphene, 1-3 pts. wt. of calcium stearate, 0. 2pts. wt. of aluminum acetate, 1-5 pts. wt. of toughening agent and 0.5-1 pts. wt. of antioxidants. USE - Graphene/metal composite powder modified nylon for light emitting diode bulbs and printed circuit boards. ADVANTAGE - The graphene/metal composite powder modified nylon has high thermal conductivity required to meet large power requirements. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene/metal composite powder which involves: (A) blending liquid polyamide-6, ceramic powder, metal powder, graphene, calcium stearate, aluminum acetate, toughening agent and antioxidants in a high speed mixer for 15-20 minutes; (B) placing blend in a twin-screw extruder for melting at 70-80 degrees C and extruding melt; (C) cooling; and (D) pelletizing to obtain desired product.