Abstract:
The present invention provides a fiber-reinforced resin intermediate material, including not only a thermoplastic resin but also a thermosetting resin, in which defects such as voids are difficult to be generated and which is excellent in shaping ability; and a method for manufacturing the same. The fiber-reinforced resin intermediate material according to the present invention is a fiber-reinforced resin intermediate material formed by attaching a resin to an outer surface part of a reinforcing fiber substrate formed of reinforcing fibers subjected to opening and heating the resin to a temperature equal to or higher than the melting point of the resin to impregnate the reinforcing fiber substrate with the resin, wherein the reinforcing fiber substrate has void space that is opened on an outer surface thereof and the resin is in a semi-impregnated state.
Abstract:
Pre-impregnated composite material (prepreg) is provided that can be cured/molded to form composite parts having high damage tolerance and interlaminar fracture toughness. The matrix resin includes a thermoplastic particle component that includes a mixture of polyamide 12 particles and polyamide 11 particles.
Abstract:
A coated woven textile fabric is disclosed which is formed of synthetic yarns of more than one denier preferably synthetic filamentary yarns of differing deniers. A polymeric coating such as polyurethane is layered on at least one side thereof, but may also be provided on both sides. The combination of yarns of different deniers provides a superior adhesion surface for the polymeric coating. The yarns and the polymeric coating are preselected respectively in deniers and thickness so as to render the fabric substantially impermeable to fluid under pressure, while maintaining superb packageability and antiblocking properties for use in vehicle occupant restraint systems. A flexible lightweight air bag for receiving and containing fluid under pressure for use in a vehicle air restraint system is also disclosed, incorporating the woven textile fabric of the invention.
Abstract:
There is described an electroconductive tow or yarn, made from continuous filaments or staple fibers yarns, prepared from stabilized petroleum pitch, coal tar pitch or a synthetic fiber forming material which on at least partial carbonization is electroconductive, for example, polyacrylonitrile, are formed into coil-like fibers or filaments by winding the tow or yarn on a mandrel, but preferably by knitting the tow or yarn into a cloth, and heat treating the so formed tow or yarn to a carbonizing temperature (450.degree. C. to about 1500.degree. C.) to set a coilure (a non-textile crimp) therein as well as electroconductance thereto, and incorporating the coilure structure into scrim yarns, scrim capcoats, composites with tuft-lock components as well as incorporation into the carpet yarns, to provide an anti-static property to the finished carpet.