Curable monomers
AssigneeBAE SYSTEMS plc
InventorsDavid Baker, Amir Rezai
Life of this patent
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Abstract
The invention relates to methods and a novel powdered curable monomer which may be used to manufacture bulk polymers, adhesives and coatings composite materials with high percentage weight inclusions of particulate filler materials, more specifically to fibre reinforced polymer composite materials with high percentage weight inclusions of particulate filler materials. The preferred particulate filler materials are carbon nanotubes. The method according to the invention allows greater than 0.5 wt % of carbon nanotubes, typically greater 10% wt of carbon nanotubes or other high aspect ratio fillers to be readily incorporated in the resin matrix, before being applied to the fibre reinforcing plys.
Claims19
A method of preparing a curable monomer adduct powder, comprising providing a curable monomer, at least 0.1% wt of a particulate filler, and at least one curing stimulus, comprising the steps of
- a) forming a monomer admixture,
- b) causing the partial cure of the monomer admixture to form a partially cured adduct,
- c) reducing the partially cured adduct to an curable monomer adduct powder.
A curable monomer adduct powder, comprising a partially cured admixture comprising a curable monomer, a curing agent, and at least 0.1% wt of a particulate filler with an average longest dimension of less than 500 microns.
11-12. (canceled)
(canceled)
A method of forming a 3 dimensional object comprising the steps of using an additive layer process comprising the use of an curable monomer adduct powder that includes a partially cured admixture comprising a curable monomer, a curing agent, and at least 0.1% wt of a particulate filler with an average longest dimension of less than 500 microns.
A fibre reinforced polymer composite according to claim 11, wherein the particulate filler is present in the range of from 5 to 40% wt.
Dependencies are inferred from the claim text.