| 摘要 |
<p>A precursor article for composite materials with reinforcing fibres and polymer matrix fibres, in which the matrix fibres are based on a thermoplastic polycondensate comprising two macromolecular chains linked by a linear, cyclic, aliphatic or aromatic hydrocarbon group with at least two carbon atoms which may also contain hetero-atoms. A precursor article (PA) for composite materials with a polymer matrix and reinforcing fibres or filaments, comprising (B) reinforcing fibres and/or filaments together with (A) fibres or filaments of the matrix polymer, in which (B) consists of reinforcing material, possibly with a thermoplastic polymer component, (A) consists of a thermoplastic polymer, and the polymer in (B) and/or (A) contains at least one polycondensate comprising 30-100 mol% macromolecular chains of formula (I) and 0-70 mol% macromolecular chains of formula (II). [Image] -X-Y- : a radical formed by the condensation of two reactive functions F 1 and F 2; F 1the precursor of -X-, which is unable to undergo condensation with another F 1; F 2the precursor of -Y-, which is unable to undergo condensation with another F 2; A : a covalent bond or 1-20C aliphatic hydrocarbylene (optionally with heteroatoms); R 22-20C aliphatic or aromatic hydrocarbylene; R 3, R 4H, OH or hydrocarbyl; R 1a hydrocarbylene group with at least 2 carbons (linear, cyclic, aromatic or aliphatic, optionally with heteroatoms); n, m, p : 30-200 . Independent claims are also included for (1) composite material obtained from PA by at least partly melting the matrix fibres (A) (2) semi-finished products obtained from PA by thermoforming or calendering so that (B) is impregnated with molten (A) (3) finished products obtained by thermoforming PA to the final form (4) finished products obtained from the above semi-finished products by forming or by thermal compression.</p> |
