The invention relates to a fiber reinforced polymer composite material and a preparation method thereof, wherein the fiber reinforced polymer composite material comprises a polymeric resin matrix in a continuous phase, and chemical fiber fabric and reinforced fibers dispersed in the polymeric resin matrix, and the chemical fiber fabric covers the reinforced fibers so as to avoid exposure of the reinforced fibers to an outside surface of the composite material. The invention reduces or even avoids exposure of the reinforced fibers of the fiber reinforced polymer composite material, and can be used for manufacturing cable bridges, frames of doors, windows and curtain walls, etc. The method for preparing the fiber reinforced polymer composite material of the invention effectively improves the performance of the composite material and also reduces the cost of surface treatment and increases production efficiency.

A stitched article includes a substrate and a first strand portion formed from a bundle of fibers. The substrate has a first region and a second region. The first strand portion is attached to the substrate in the first region and in the second region via a series of stitches formed with a thread and forms a first layer on the substrate. The article has a first concentration of the stitches in the first region along a first length of the strand portion and a second concentration of the stitches different than the first concentration in the second region along a second length of the first strand portion.

A stitched article includes a substrate and a first strand portion formed from a bundle of fibers. The substrate has a first region and a second region. The first strand portion is attached to the substrate in the first region and in the second region via a series of stitches formed with a thread and forms a first layer on the substrate. The article has a first concentration of the stitches in the first region along a first length of the strand portion and a second concentration of the stitches different than the first concentration in the second region along a second length of the first strand portion.

Provided is a composite material capable of keeping a good appearance even after heat processed, a method for manufacturing a composite material and a method for manufacturing a molded article. The composite material of the present invention contains a commingled yarn that contains a continuous reinforcing fiber (A) and a continuous thermoplastic resin fiber (B) as fiber components thereof; and a thermoplastic resin fiber (C) that keeps the commingled yarn in place, a thermoplastic resin that composes the thermoplastic resin fiber (C) having a melting point 15 C. or more higher than the melting point of a thermoplastic resin that composes the continuous thermoplastic resin fiber (B).

Method for producing a textile unidirectional fabric, wherein at least one planar layer of multi-filament reinforcement threads arranged parallel to each other are woven with each other over transverse threads, wherein transverse threads having core-sheath structure and titer of 10 to 40 tex are used as transverse threads, wherein transverse threads have a first component, which structures sheath, and second component, which structures core, wherein first component has lower melting temperature than second component, first component is meltable thermoplastic polymer material and, via first component of transverse threads, adjacently arranged multi-filament reinforcement threads are connected to each other by hot melting, wherein alleys are formed in unidirectional fabric by interweaving multi-filament reinforcement threads together with transverse threads, by means of which a permeability of 10 to 600 l/dm2/min can be established. Preferred embodiment relates to method for producing unidirectional fabric having fleece. Further, a fiber preform, produced from unidirectional fabric.

The present disclosure relates to a stitching yarn and non-crimp fabrics containing such yarn. The stitching yarn described herein is a multifilament stitching yarn characterized by two or more of the following properties: (a) comprises a plurality of polymeric fibers, (b) has a linear density of less than or equal to 80 dtex, (c) has a filament count of less than or equal to 0.8 times the dtex value of the stitching yarn, or (d) has a twist of less than 200 revolutions per meter (r/m). The present disclosure also relates to a fiber preform, composite material, and composite article containing the non-crimp fabric.

The present invention relates to a method of producing a ribbon (12) comprising bamboo fibers (14), the method comprising: positioning the fibers (14) on a conveyor (16) and conveying the fibers in a transport direction, interconnecting the fibers (14) by: covering the fibers with thread (42) and/or particles of a sticky material with at least one web forming device (40) which is positioned above and/or below the conveyor and which ejects thread and/or particles, wherein the formed thread and/or particles attaches to the fibers and forms a web (45) which interconnects the fibers in order to form the ribbon, and/or stitching the fibres together with at least one stitching device (40B) which is configured to stitch the individual fibers together in order to form the ribbon.

The invention relates to a fiber reinforced polymer composite material and a preparation method thereof, wherein the fiber reinforced polymer composite material comprises a polymeric resin matrix in a continuous phase, and chemical fiber fabric and reinforced fibers dispersed in the polymeric resin matrix, and the chemical fiber fabric covers the reinforced fibers so as to avoid exposure of the reinforced fibers to an outside surface of the composite material. The invention reduces or even avoids exposure of the reinforced fibers of the fiber reinforced polymer composite material, and can be used for manufacturing cable bridges, frames of doors, windows and curtain walls, etc. The method for preparing the fiber reinforced polymer composite material of the invention effectively improves the performance of the composite material and also reduces the cost of surface treatment and increases production efficiency.

A case for a gas turbine engine includes a plurality of distinct case sections in axial series. The case sections include, in axial order, a flange section, a forward shell section, a containment section, and an aft shell section. The forward shell section, the containment section, and the aft shell section are formed of a plurality of unidirectional roving fiber layers and a plurality of non-crimp fabric layers. The flange section is formed of a second plurality of non-crimp fabric layers. The plurality of unidirectional roving fiber layers do not have stitching or weaves. A ballistic liner is attached with the containment section, and a fiberglass layer encapsulates the plurality of unidirectional roving fiber layers, the plurality of non-crimp fabric layers, and the second plurality of non-crimp fabric layers.

The present invention relates to a composite armour (1) for a flexible pipe. Armour (1) comprises a composite profile (2) and a reinforcement tape (5). Composite profile (2) consists of longitudinally oriented reinforcement fibres (4) embedded in a polymer matrix (3). Reinforcement tape (5) consists of a woven tape comprising fibres impregnated with a polymer material, in such a way that the weft thread of the reinforcement tape is orthogonal to the longitudinal direction of the profile, and the warp thread is parallel to the longitudinal direction of the profile.