• 专利标题:   Composite sliding bearing comprises an open cell foam metal, a functionalized graphene layer electrodeposited on a surface of the open cell foam metal, where the modified polyetheretherketone is filled in the pores of metal foam.
  • 专利号:   CN109027006-A
  • 发明人:   LONG C, LIU C, DONG P
  • 专利权人:   UNIV CHANGSHA SCI TECHNOLOGY
  • 国际专利分类:   F16C033/14, F16C033/12, C08L061/16, C08L027/18, C08K013/06, C08K009/06, C08K007/10, C08K003/04, C09K005/14
  • 专利详细信息:   CN109027006-A 18 Dec 2018 F16C-033/14 201921 Pages: 10 Chinese
  • 申请详细信息:   CN109027006-A CN10887542 06 Aug 2018
  • 优先权号:   CN10887542

▎ 摘  要

NOVELTY - Composite sliding bearing comprises an open cell foam metal (5), a functionalized graphene layer electrodeposited on a surface of the open cell foam metal, where the modified polyetheretherketone is filled in the pores of metal foam. The modified polyetheretherketone is composed of 60-70 pts. wt. modified polyetheretherketone, 5-10 pts. wt. polytetrafluoroethylene, 20-30 pts. wt. basalt fiber after surface modification by coupling agent, 5-10 pts. wt. graphite and 0.8-1.2 pts. wt. antioxidant. After being extruded at a temperature of 360 to 390 degrees C, the coupling agent is a high temperature resistant phenylimide silane, and the amount is 0.2-1.5 wt.% of the mass of the basalt fiber. The ether ether ketone is filled into the pores of the open-cell foam metal by an injection molding process at a temperature of 350-390 degrees C and and an injection pressure of 80 to 120mpa. USE - Composite sliding bearing. DETAILED DESCRIPTION - The functionalized graphene is by the Hummers method is oxidized-peeled-reduced to obtain functionalized graphene. After reduction, graphene is pre-reduced by sodium borohydride, then sulfonated, and then reduced by hydrazine to introduce sulfonic acid on the surface of graphene. The electrodeposition adopts a direct current power source, the graphite electrode is connected to the positive electrode, and the open-cell foam metal is connected to the negative electrode at a concentration of 100 mg to 200 mg/l. An INDEPENDENT CLAIM is included for a method for preparing composite sliding bearing, which involves: (A) depositing a layer of functionalized graphite on a pore surface of an open cell foam metal by an electrodeposition method; (B) loading open-cell foam metal into the injection mold; (C) filling modified polyetheretherketone into the pores of the open-cell foam metal by an injection molding process; and (D) cooling and forming, where modified polyetheretherketone is composed of 60-70 pts. wt. modified polyetheretherketone, 5-10 pts. wt. polytetrafluoroethylene, 20-30 pts. wt. basalt fiber after surface modification by coupling agent, 5-10 pts. wt. graphite and 0.8-1.2 pts. wt. antioxidant and agent is mixed and prepared by extrusion molding at a temperature of 360 to 390 degrees C and after being extruded at a temperature of 360 to 390 degrees C, the coupling agent is a high temperature resistant phenylimide silane, and the amount is 0.2-1.5 wt.% of the mass of the basalt fiber. The ether ether ketone is filled into the pores of the open-cell foam metal by an injection molding process at a temperature of 350-390 degrees C and and an injection pressure of 80 to 120mpa. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an injection mould. Movable template (1) Locating sleeve (2) Mold core (3) Sealing glue sleeve (4) Open cell foam metal (5)