Cured composite composition
AssigneeGeneral Electric Company
InventorsXiaomei Fang, Wendy Wen-Ling Lin, Amitabh Bansal, Yosang Yoon
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Abstract
In one aspect, the present invention provides a cured composite composition comprising (a) a fiber component; and (b) an organic composition. The organic composition comprises a cured epoxy continuous phase and a nanoparticulate thermoplastic block copolymeric discontinuous phase. The nanoparticulate thermoplastic block copolymeric discontinuous phase has a domain size distribution in a range from about 1 nanometer to about 500 nanometers, and the discontinuous phase is substantially uniformly distributed throughout the cured composite composition. Articles and method of making the cured composite compositions are also provided.
Claims24
A cured composite composition comprising:
- (a) a fiber component;
- and
- (b) an organic composition comprising a cured epoxy continuous phase and a nanoparticulate thermoplastic block copolymeric discontinuous phase;
- said nanoparticulate thermoplastic block copolymeric discontinuous phase having a domain size distribution in a range from about 1 nanometer to about 500 nanometers,
- said discontinuous phase being substantially uniformly distributed throughout the cured composite composition.
A method of preparing a cured composite article comprising:
- (a) contacting a fiber structure with a formulation comprising an uncured epoxy resin and a thermoplastic block copolymer, said thermoplastic block copolymer being substantially soluble in said uncured epoxy resin and substantially insoluble in a corresponding cured epoxy resin to provide an uncured intermediate,
- said contacting being carried out under vacuum assisted resin transfer method conditions;
- and
- (b) curing the uncured intermediate to provide a cured composite article comprising a cured epoxy continuous phase and a nanoparticulate thermoplastic block copolymeric discontinuous phase;
- said nanoparticulate thermoplastic block copolymeric discontinuous phase having a domain size distribution in a range from about 1 nanometer to about 500 nanometers,
- said discontinuous phase being substantially uniformly distributed throughout the cured composite composition.
An uncured composite composition comprising:
- (a) a fiber component;
- and
- (b) a formulation comprising an uncured epoxy resin and a thermoplastic block copolymer selected from the group consisting of diblock copolymers of polymethylmethacrylate and polybutylacrylate, and triblock copolymers of polystyrene, polybutylacrylate, and polymethylmethacrylate;
- wherein said thermoplastic block copolymer is substantially soluble in said uncured epoxy resin and substantially insoluble in a corresponding cured epoxy resin.
A cured composite composition comprising:
- (a) a carbon fiber component;
- and
- (b) an organic composition comprising a cured epoxy continuous phase and a nanoparticulate thermoplastic diblock copolymeric discontinuous phase;
- said nanoparticulate thermoplastic diblock copolymeric discontinuous phase having a domain size distribution in a range from about 1 nanometer to about 500 nanometers,
- said discontinuous phase being substantially uniformly distributed throughout the cured composite composition.
Dependencies are inferred from the claim text.