Abstract: The present invention relates to a method for producing a unidirectional tape with a surface polymer layer, the method comprising the steps of a) providing an impregnation slurry comprising particles of a polymer, water, optionally a surfactant, optionally an organic carrying medium, optionally organic compounds and optionally surface active compounds, and providing a pressing tool having a surface profile structure, the surface profile structure having a surface roughness Ra of 1 to 20 ?m, preferably of 2 to 10 ?m, more preferably 3 to 7 ?m, b) impregnating a unidirectional fiber layer comprising unidirectional fibers with the impregnation slurry to obtain an impregnated unidirectional fiber layer comprising the particles of the polymer, c) pressing at a surface of the impregnated unidirectional fiber layer with the surface profile structure to move at least some of the particles of the polymer within the impregnated unidirectional fiber layer onto the surface to form a surface polymer layer on the unidirect

Abstract: The present invention concerns Method for producing a unidirectional tape, the method comprising the steps of a) providing an impregnation slurry comprising primary particles and secondary particles, water, optionally an organic carrying medium, optionally an organic compound and optionally a surface active compound, and providing a unidirectional fiber layer having an average interstitial filament distance, wherein the primary particles comprise a first polymer and the primary particles have a particle size equal to or smaller than the average interstitial filament distance, and the secondary particles comprise a second polymer and the secondary particles have a particle size larger than the average interstitial filament distance, b) impregnating the unidirectional fiber layer with the impregnation slurry to form an impregnated unidirectional fiber web comprising an impregnated unidirectional fiber layer and a surface polymer layer, wherein the impregnated unidirectional fiber layer comprises, preferably con

Abstract: A fiber-reinforced composite material includes a bulk portion with a bulk matrix having reinforcing fibers embedded therein, and a surface portion with a plurality of laminated first layers serving as “expanding layers”, which expand and/or delaminate during fire impact. The surface portion also includes a plurality of laminated second layers different from the first layers and serving as “barrier layers”. The expanding layers and barrier layers can be arranged in an alternating sequence.

Abstract: A method for manufacturing a fiber composite component includes providing a semi-finished textile product; injecting a matrix material into the semi-finished textile product so as to form an infiltrated semi-finished product, wherein the matrix material includes a thermoplastic film having particles dispersed therein; and curing the infiltrated semi-finished product.

Abstract: A device and method for testing a fiber-composite component, which is to be processed by means of bonding, for the presence of at least one substance out of a selection of possible contaminants. A surface heating device for regional heating of a part-zone of the fiber-composite component to be bonded is performed for desorption of contaminants. A sensor array with a plurality of sensors detects contaminants in the gas phase, and a control device ascertains and signals contaminations which are found. An extractor device can be employed to extract machining dust from the fiber-composite component to a desorption device.

Abstract: A fiber-reinforced composite material includes a bulk portion with a bulk matrix having reinforcing fibers embedded therein, and a surface portion with a plurality of laminated first layers serving as “expanding layers”, which expand and/or delaminate during fire impact. The surface portion also includes a plurality of laminated second layers different from the first layers and serving as “barrier layers”. The expanding layers and barrier layers can be arranged in an alternating sequence.

Abstract: An adhesive composition for detachable adhesive bonds is based on adhesive matrices and expansion material. The particles of the expansion material are at least partially encapsulated. A bond of at least two components and an adhesive layer includes an adhesive composition based on adhesive matrices and expansion material. The bonded components may include metal, plastic, wood, glass, natural or synthetic materials or a composite material thereof.

Abstract: The present invention relates to a method of fabricating a composite part presenting an integral structure of composite material comprising at least one reinforcing layer based on reinforcing fibers, fabrics, or textiles, and at least one impregnation matrix, the method consisting in assembling the integral structure, in placing said integral structure in a mold, in impregnating said integral structure with the impregnation matrix by injection or infusion, and in solidifying said impregnated integral structure by raising it to a determined temperature, the method being characterized in that it consists in: using at least two distinct primary parts for making up the integral structure; placing a thermoplastic sheet on at least one of the primary parts so as to make the interface between said primary parts once they are assembled together.

Abstract: A device and method for testing a fibre-composite component, which is to be processed by means of bonding, for the presence of at least one substance out of a selection of possible contaminants. A surface heating device for regional heating of a part-zone of the fibre-composite component to be bonded is performed for desorption of contaminants. A sensor array with a plurality of sensors detects contaminants in the gas phase, and a control device ascertains and signals contaminations which are found. An extractor device can be employed to extract machining dust from the fibre-composite component to a desorption device.

Abstract: An adhesive composition for detachable adhesive bonds is based on adhesive matrices and expansion material, the particles of the expansion material being at least partially encapsulated.

Abstract: An adhesive composition for detachable adhesive bonds is based on adhesive matrices and expansion material, the particles of the expansion material being at least partially encapsulated.

Abstract: The present invention relates to a method of fabricating a composite part presenting an integral structure of composite material comprising at least one reinforcing layer based on reinforcing fibers, fabrics, or textiles, and at least one impregnation matrix, the method consisting in assembling the integral structure, in placing said integral structure in a mold, in impregnating said integral structure with the impregnation matrix by injection or infusion, and in solidifying said impregnated integral structure by raising it to a determined temperature, the method being characterized in that it consists in: using at least two distinct primary parts for making up the integral structure; placing a thermoplastic sheet on at least one of the primary parts so as to make the interface between said primary parts once they are assembled together.

Abstract: A method for manufacturing a fibre composite component includes providing a semi-finished textile product; injecting a matrix material into the semi-finished textile product so as to form an infiltrated semi-finished product, wherein the matrix material includes a thermoplastic film having particles dispersed therein; and curing the infiltrated semi-finished product.

Abstract: This invention relates quite in general to production of fiber composite components by infiltration of a fiber material with a synthetic resin and subsequent curing. In order to improve the required preparation of a liquid or viscous resin system, as claimed in the invention especially a synthetic resin granulate (10, 12) and a process for its production are provided, encompassing the step of stabilization of the synthetic resin granulate (10?) by adding nanoparticles (12?) which attach on the surface of the granulate particles (10). The granulate (10, 12) which is thus free of blocks can be easily handled, for example bagged, flow-conveyed and metered. Advantageously the nanoparticles do not have an adverse effect on the infiltration properties of the resin and on the component properties.