A method of manufacturing an elastic composite includes forming a preform from a filler filled one-dimensional elastic structure that contains a filler and a matrix material forming a pattern that provides elasticity to the one-dimensional elastic structure; and forming the elastic composite from the preform via one or more of the following: sintering; compression molding; or hot isostatic pressing.

A method of manufacturing an elastic composite includes forming a preform from a filler filled one-dimensional elastic structure that contains a filler and a matrix material forming a pattern that provides elasticity to the one-dimensional elastic structure; and forming the elastic composite from the preform via one or more of the following: sintering; compression molding; or hot isostatic pressing.

Polymer-based selective radiative cooling structures are provided which include a selectively emissive layer of a polymer or a polymer matrix composite material. Exemplary selective radiative cooling structures are in the form of a sheet, film or coating. Also provided are methods for removing heat from a body by selective thermal radiation using polymer-based selective radiative cooling structures.

This disclosure describes a composition for additive manufacturing, which contains a thermoplastic polymer and a mineral additive capable of reducing a specific heat of the composition relative to a specific heat of the thermoplastic polymer. A proportion of the mineral additive in the composition may be set such that the specific heat of the composition is equal to or less than 95% of the specific heat of the thermoplastic polymer, and the composition may be in the form of a filament, rod, pellet or granule. Compositions disclosed herein may be adapted to function as compositions suitable for performing additive manufacturing by material extrusion. Also disclosed herein are additive manufacturing processes and methods for producing the compositions for fused filament fabrication.

A plastics material component for an aircraft includes (i) a substrate, which comprises one or more thermosetting plastics materials, and (ii) one or more layers which are applied to the substrate, at least one layer S1 comprising mica. A method for producing the plastics material component includes providing a substrate including at least one thermosetting plastics material or one polymer which is crosslinked to form a thermosetting plastics material, and applying one or more layers to the substrate, wherein at least one layer includes mica. The mica-containing layer is applied directly to the substrate and the application is carried out before and/or during the curing of the thermosetting plastics material.

A process is provided for preparing an electrically conductive composite film having at least one thermoplastic polymer resin and electrically conductive particles chosen from graphene, carbon nanotubes, carbon nano-fibres, and mixtures thereof; and filiform metal nanoparticles, the electrically conductive composite film optionally impregnating fibres. The process has a step of preparing a suspension comprising a solvent and electrically conductive particles chosen from graphene, carbon nanotubes, carbon nanofibres, and mixtures thereof; and filiform metal nanoparticles. The suspension has approximately from 0.06% to 0.5% by volume of the electrically conductive particles relative to the total volume of the suspension.

A process is provided for preparing an electrically conductive composite film having at least one thermoplastic polymer resin and electrically conductive particles chosen from graphene, carbon nanotubes, carbon nano-fibres, and mixtures thereof; and filiform metal nanoparticles, the electrically conductive composite film optionally impregnating fibres. The process has a step of preparing a suspension comprising a solvent and electrically conductive particles chosen from graphene, carbon nanotubes, carbon nanofibres, and mixtures thereof; and filiform metal nanoparticles. The suspension has approximately from 0.06% to 0.5% by volume of the electrically conductive particles relative to the total volume of the suspension.

A new method for the making of a new composite of nanomaterials and fibers is disclosed, comprising at least a step in which the nanomaterials are incorporated into the fiber preform by applying ultrasound to an impregnated fiber preform and iterating the steps of the method until to obtain a desired concentration of nanomaterial incorporated into the composite. The method allows obtaining uniform composite of high quality with higher thermal conductivity which are also part of the present invention. A new ancillary material stacking sequence incorporating nanomaterial/fibers composite is also disclosed, in which the ancillary sequence is placing breather and bleeder between the release film and curing tool in order to eliminate accumulated matrix against the tool plate.

Cellulosic composites comprising cellulosic filaments and a polymer matrix are described. Embodiments of such composites may exhibit improved mechanical properties and moisture resistance. Methods for producing the cellulosic composites include melt processing and articles are produced by extrusion.

A method for producing an abradable seal for a turbomachine, such as a turbojet engine low-pressure compressor. The method comprises the following steps performed as follows: (a) preheating of a metal mould in a furnace; (b) filling of the hot mould with a powdery aluminium-based mixture; (c) degassing of the mixture in the mould; (d) compacting of the mixture in the still-hot mould at ambient temperature, so as to solidify the mixture in the mould. The abradable seal is thus produced in angular segments that form tiles. The angular segments are then bonded into a composite casing of the turbomachine.