Composite Friction Materials Having Carbon Nanotube and Carbon Nanofiber Friction Enhancers
OwnerPeter Filip, David N. Bortz +3inventors
InventorsPeter Filip, David N. Bortz, Brian Howells, Ashley R. King, Tod Policandriotes
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Abstract
A textile-reinforced composite friction material is provided by the present invention that includes a nonwoven needlepunched fiber mat, a resin matrix impregnated within and onto the fiber mat, and a carbon nanomaterial dispersed within the resin matrix. The carbon nanomaterial is preferably carbon nanotubes and/or carbon nanofibers.
Claims29
A composite friction material comprising:
- a nonwoven needlepunched fiber mat;
- a resin matrix impregnated in the fiber mat;
- and
- a carbon nanomaterial dispersed on and within the resin matrix and fiber mat.
A friction product for use in a friction application comprising:
- a backing;
- and
- a friction composite attached to the backing, the friction composite comprising a dispersed carbon nanomaterial within a matrix carrier.
A composite material for use in friction applications comprising a nonwoven needle punched fiber mat;
- a resin matrix impregnated in the fiber mat;
- and
- a carbon nanomaterial dispersed on and within the resin matrix and fiber mat, the carbon nanomaterial selected from the group consisting of carbon nanotubes and carbon nanofibers.
A composite friction material comprising:
- a carded and needlepunched fiber mat is selected from a group comprising aramid, glass, ceramic, polyacrylonitrile and staple carbon or staple graphite fibers;
- a resin matrix impregnated within the fiber mat;
- and
- a carbon nanomaterial selected from the group consisting of carbon nanotubes and carbon nanofibers dispersed within the resin matrix.
A method of forming a composite friction material comprising preparing a fiber mat, dispersing a carbon nanomaterial selected from the group consisting of carbon nanotubes and carbon nanofibers within a resin, and saturating the fiber mat with resin containing the nanomaterial.
A method of forming a composite friction material preform comprising depositing a carbon nanomaterial onto a fiber mat during the needlepunching process.
A method of forming a composite friction material comprising depositing a carbon nanomaterial onto a fiber mat and impregnating the carbon nanomaterial fiber mat with a resin.
Dependencies are inferred from the claim text.