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 metal-carbon fiber reinforced plastic composite comprising a metal member of a ferrous material or ferrous alloy, a resin layer provided on at least one surface of the metal member and including a thermosetting resin, and carbon fiber reinforced plastic provided on a surface of the resin layer and including a carbon fiber material and a matrix resin having thermoplasticity, an indentation elastic modulus at 160 to 180° C. of the resin layer being higher than an indentation elastic modulus at 160 to 180° C. of the matrix resin.

Floor panel with a substrate, including thermoplastic material, a decor provided thereon, and, on at least one pair of opposite edges, coupling parts realized at least partially from the substrate. The coupling parts allow to effect a mechanical locking between two of floor panels, where the substrate includes a rigid substrate layer of thermoplastic material, and a glass fiber layer is present in the floor panel.

Described are methods and systems for a composite structure that allows for out of autoclave curing. Due to the layout of the composite structure, voids within the composite structure, formed out of autoclave, is reduced. The composite structure includes a composite laminate and one or more infusion films. The composite laminate includes a plurality of fiber tows that each include a plurality of fiber strands and a resin. The resin has a first viscosity within a first temperature range. The infusion film is disposed on a surface of the composite laminate and has a second viscosity lower than the first viscosity within the first temperature range. Methods of curing the composite structure are also described.

A building product for application to the exterior of a building. The front face of the product utilizes a first fiber sheet partially embedded within a thermoset polymer coating resin. A foamed closed cell admixture composition core with an inorganic filler overlays the thermoset polymer coating resin with the embedded fiber sheet. The admixture composition infiltrates and bonds to the portion of the fiber sheet that is not embedded within the thermoset polymer coating resin mechanically bonding to the thermoset polymer coating. A second fiber sheet overlays the admixture core and the admixture and second fiber sheet form the rear surface of the building product that is mounted adjacent the building surface.

The present disclosure relates to composites. One composite may include a resin and oxidized polyacrylonitrile fibers. The oxidized polyacrylonitrile fibers may be provided as a nonwoven fabric. An additional composite may include a resin and material scraps respectively including carbon fibers. The material scraps may be positioned to at least partially overlap one another and define a substantially continuous layer. The material scraps may be provided as a fabric and/or a plurality of loose fibers.

The purpose of the present invention is to obtain a fiber-reinforced composite material having excellent appearance or mechanical characteristics, whereby a three-dimensional shape is molded with high productivity while appearance defects such as fiber meandering or wrinkling are suppressed. In this method for manufacturing a fiber-reinforced composite material, when a stack in which a plurality of sheet-shaped prepregs (X) in which a plurality of continuously arranged reinforcing fibers are impregnated with a matrix resin composition are layered in different fiber directions is molded into a three-dimensional shape by a molding die (100) provided with a lower die (110) and an upper die (112), a stretchable sheet (10) or a resin film (Y) used in the stack (12) is utilized. In this method for manufacturing a fiber-reinforced composite material, the stack may be pre-molded to obtain a preform, and the preform may be furthermore compression-molded to obtain a fiber-reinforced composite material.

The present disclosure is directed to a method for applying a multi-colored coating to a composite structure comprising applying a first co-curable film layer comprising a first color marking to a composite tool, applying a second co-curable film layer comprising a second color marking over the composite tool and at least partially over the first co-curable film layer to create a lay-up of a multi-colored marking, applying a composite structure over the lay-up of the multi-colored marking, and curing the lay-up of the multi-colored marking and the composite structure in a single curing step to create a cured multi-colored coating on the composite structure. A multi-colored coating for marking a composite structure and an aircraft part having a multi-colored marking are also provided.

At least one surface of a FRP component is coated by impregnating a structure formed with textile fibres with a flowable polymeric matrix material so the fibres are completely covered to form the coating, a thickness of the flowable polymeric matrix material above the fibres of at least 100 m and at least one ply of pull-off fabric, mesh or gauze is laid on and wetted or impregnated completely with the flowable polymeric matrix material. The polymeric matrix material is cured then the at least one ply of pull-off fabric, mesh or gauze is removed by peeling and in this region a surface of increased roughness is obtained so between the surface of increased roughness and fibres there is a layer formed with the cured polymeric matrix material, having a thickness of at least 100 m. Coating the increased roughness surface with a thermal spraying process.

Provided are a method for producing a tank with an outer surface profile that allows an elastic protective member to be easily and firmly attached to a surface thereof, and also such a tank with a protective member. The method for producing the tank, which includes winding fiber bundles containing an uncured resin component in multiple layers around the outer surface of a liner in a first pitch width so as to form a fiber reinforced resin layer and securely bonding the protective member to a portion of the outer surface thereof, further includes: winding the fiber bundles in a second pitch width wider than the first pitch width so as to form a gap with a required width where no fiber bundle is present between adjacent fiber bundles in winding the fiber bundles to form an outermost fiber bundle layer; shaving off a tip end portion of a projection made of a resin that has cured after bleeding into the gap, with a portion thereof left unshaved so as to form a sharpened portion; and securely bonding the protective member to the sharpened portion while pressing it from above.