Breathing apparatus, a pressure vessel and associated methods of manufacture
AssigneeDräger Safety AG & Co. KGaA
InventorsPaul James Ringer, Andrew Richard Olds, Craig Stuart Blenkiron
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Abstract
Disclosed is a breathing apparatus comprising a pressure vessel. The pressure vessel may comprise a composite shell formed from a plurality of fibres and a matrix comprising a resin material and graphene particles. The pressure vessel may comprise at least one permeation barrier layer comprising graphene microparticles or graphene nanoparticles provided on an outer surface of the structural shell or on an outer surface of the liner. Methods of manufacture for pressure vessels are also disclosed.
Claims20
A breathing apparatus comprising a pressure vessel, the pressure vessel comprising:
- a fibre-reinforced polymer composite shell having a layer of graphene flakes.
A pressure vessel for a breathing apparatus, the pressure vessel comprising:
- a fibre-reinforced polymer composite shell having a layer of graphene flakes.
A method of manufacturing a pressure vessel for a breathing apparatus, the method comprising:
- providing a polymer matrix having at least 0.1 wt. % graphene flakes;
- impregnating a fibre reinforcement with the matrix.
Dependencies are inferred from the claim text.