Method for making a carbon fibre from a paper product
AssigneesInstitut De Recherche Technologique Jules Verne, Centre Technologique Nouvelle-Aquitaine Composites & Materiaux Avances, Faurecia Services Groupe
InventorsSylvain Pineau, Célia Mercader, Céline Largeau
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Abstract
Disclosed is a method for making a carbon fibre from a paper product. The method includes preparing a cellulose-based fibre by crushing the paper product, dissolving the crushed material obtained in an aqueous phosphoric acid solution to form a spinning solution, and forming a cellulose-based continuous fibre by use of a solvent spinning process. The cellulose fibre formed in this way is subjected to carbonisation treatment in order to form a carbon fibre.
Claims20
Method for manufacturing a carbon fibre from a manufactured paper product comprising about 70-85 wt % cellulose fibres extracted from wood, comprising:
- a/ preparing a cellulose-based fibre, comprising the successive steps of:
- a1/ grinding said paper product to obtain a ground paper material,
- a3/ directly dissolving the ground material obtained at the end of step a1/ in an aqueous phosphoric acid solution to form a so-called spinning solution,
- a4/ using said spinning solution to manufacture a cellulose-based continuous fibre by implementing a solvent spinning process,
- a5/ optionally drawing the resulting cellulose-based continuous fibre,
- b/ and carbonising said cellulose-based continuous fibre to form a carbon fibre.
Dependencies are inferred from the claim text.