Fibre-reinforced polymer matrix
A self-healing composite material comprises a fibre-reinforced polymer matrix containing a thermosetting polymer and a thermoplastic polymer that together form a solid solution. The reinforcing fibres may be carbon fibres forming one or more layers. Preferably, the thermosetting polymer is an epoxy...
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| creator | SIMON A HAYES FRANK JONES |
| description | A self-healing composite material comprises a fibre-reinforced polymer matrix containing a thermosetting polymer and a thermoplastic polymer that together form a solid solution. The reinforcing fibres may be carbon fibres forming one or more layers. Preferably, the thermosetting polymer is an epoxy resin and the thermoplastic polymer is polybisphenol-A-co-epichlorohydrin. A method for forming the composite is also disclosed, whereby a solution of a prepreg of the thermosetting and thermoplastic polymers may be used to impregnate a layer of reinforcing fibres before curing the thermosetting polymer. In another aspect, the composite comprises a fibre-reinforced polymer matrix containing a thermosetting polymer and a thermoplastic polymer with a damage detection system. The detection system may detect changes in acoustic wave propagation or resistance. Any damage may be repaired by a method in which the affected area is heated to the fusion temperature of the thermoplastic polymer, for example, by passing a current through the fibres. |
| format | Patent |
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The reinforcing fibres may be carbon fibres forming one or more layers. Preferably, the thermosetting polymer is an epoxy resin and the thermoplastic polymer is polybisphenol-A-co-epichlorohydrin. A method for forming the composite is also disclosed, whereby a solution of a prepreg of the thermosetting and thermoplastic polymers may be used to impregnate a layer of reinforcing fibres before curing the thermosetting polymer. In another aspect, the composite comprises a fibre-reinforced polymer matrix containing a thermosetting polymer and a thermoplastic polymer with a damage detection system. The detection system may detect changes in acoustic wave propagation or resistance. 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The reinforcing fibres may be carbon fibres forming one or more layers. Preferably, the thermosetting polymer is an epoxy resin and the thermoplastic polymer is polybisphenol-A-co-epichlorohydrin. A method for forming the composite is also disclosed, whereby a solution of a prepreg of the thermosetting and thermoplastic polymers may be used to impregnate a layer of reinforcing fibres before curing the thermosetting polymer. In another aspect, the composite comprises a fibre-reinforced polymer matrix containing a thermosetting polymer and a thermoplastic polymer with a damage detection system. The detection system may detect changes in acoustic wave propagation or resistance. 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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MEASURING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS TESTING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP |
| title | Fibre-reinforced polymer matrix |
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