The invention discloses a preparation method for a pantograph slide plate made of a graphene-copper modified carbon/carbon composite material. The preparation method comprises the following steps: conducting acid pickling on a piece of integral carbon fiber needled felt to remove a colloid on the surface of the felt, and conducting vacuum drying on the felt without the colloid; soaking the treated felt into a graphene solution of a certain concentration, and taking out the soaked felt for draining and drying; soaking the obtained felt-graphene perform into a copper-ammonia complex solution of a certain concentration; putting the felt-graphene perform introduced with copper into a chemical vapor deposition furnace for carbon deposition and pyrolysis, so as to obtain a low-density carbon/carbon composite material; then, carrying out medium temperature coal-tar pitch circulating impregnation-carbonization to obtain the high-density graphene-copper modified carbon/carbon composite material; and processing the obtained graphene-copper modified carbon/carbon composite material according to drawings to obtain the high-quality pantograph slide plate. According to the preparation method provided by the invention, a graphene film is introduced to the surface of a short cut carbon fiber, so as to improve the conductivity at a fiber/matrix interface of the graphene-copper modified carbon/carbon composite material, and relatively good mechanical properties are achieved; and meanwhile, copper is introduced to the surface of the graphene film, so as to further lower the resistivity of the graphene-copper modified carbon/carbon composite material.
Preparation method for pantograph slide plate made of graphene-copper modified carbon/carbon composite material
2016-01-13
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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