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AssigneeTen Cate Advanced Composites B.V.
InventorsRobertus Gerardus Lenferink, Roger De Leeuw
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The invention relates to a method for manufacturing an element of composite material comprising a non-crimp fabric and polyetherimide (PEI), comprising the following steps, to be performed in suitable sequence, of: a) providing a non-crimp fabric; b) dissolving PEI in a solvent; c) arranging the solvent with PEI dissolved therein on the non-crimp fabric; d) pressing the solvent with PEI dissolved therein into the non-crimp fabric; e) heating the non-crimp fabric for the purpose of evaporating the solvent, wherein the PEI remains behind in the non-crimp fabric; and f) allowing the non-crimp fabric to cool and thus allowing the PEI to cure so as to obtain the element. The invention also relates to an element of composite material comprising a non-crimp fabric and polyetherimide (PEI) obtained by applying the method according to the invention, which element comprises a for instance plate-like or sheet-like body of PEI in which the non-crimp fabric is embedded as reinforcement.
Method for manufacturing an element of composite material comprising a non-crimp fabric and polyetherimide (PEI), comprising the following steps, to be performed in suitable sequence, of:
Method as claimed in any of the foregoing claims, wherein the fibres in the non-crimp fabric extend in one direction.
Method as claimed in any of the foregoing claims, wherein the solvent is chosen from the group comprising n-methyl-2-pyrrolidone (NMP) and dimethylacetamide (DMAC).
Method as claimed in any of the foregoing claims, wherein the quantity of solvent in the mixture of solvent with PEI dissolved therein amounts to a minimum of 50% by volume, a minimum of 55% by volume, a minimum of 60% by volume, a minimum of 65% by volume, a minimum of 70% by volume, a minimum of 75% by volume or a minimum of 80% by volume.
Method as claimed in any of the foregoing claims, comprising of repeating the steps c)-e) after performing the steps c)-e) and prior to step f) or after performing the steps c)-f).
Element of composite material comprising a non-crimp fabric and polyetherimide (PEI) obtained by applying the method as claimed in any of the foregoing claims, which element comprises a for instance plate-like or sheet-like body of PEI in which the non-crimp fabric is embedded as reinforcement.
Dependencies are inferred from the claim text.