Process for the production of press compounds (BMC) from unhardened prepreg wastes
AssigneeAirbus Operations GmbH
InventorTassilo Witte
Life of this patent
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Abstract
A process for the recycling of wastes from webs or strands made of prepreg wastes comprising a first reactive resin, having the following steps: homogenization of prepreg wastes, dispersion of fillers and/or additives in a second reactive resin, mixing of the second resin, homogenized prepreg wastes and further processing of the mixture of resin, fillers and/or additives and prepreg wastes to produce molded workpieces.
Claims12
A process for the recycling of wastes from webs or strands made of at least one of carbon fibers or glass fibers (prepreg wastes) respectively comprising reactive resin A, comprising:
- a) homogenizing webs or strands made of at least one of carbon fibers or glass fibers (prepreg wastes) respectively comprising a first reactive resin, where the prepreg wastes are comminuted,
- b) dispersing at least one of fillers or additives in a second reactive resin,
- c) mixing the second resin B, homogenized carbon fibers or glass fibers respectively comprising the first reactive resin, and optionally the at least one of fillers or additives, where the first and second reactive resins are mutually compatible or identical, and
- d) further processing the mixture of resin, fillers or additives, and prepreg wastes to produce molded workpieces.
The process according to any of the preceding claims, characterized in that a portion of the fillers and/or additives is added in step a).
Dependencies are inferred from the claim text.