| 摘要 |
A thermoplastic composition with improved properties for making fuel containers, e.g. for fuel oil, petrol, diesel oil or alcohol, and specifically for making fuel lines for feeding fuel to a fuel tank or engine. The thermoplastic composition includes a thermoplastic polymer matrix and at least one compound that enhances the resilience of thermoplastic compositions. Said matrix consists of a mixture of: at least one first thermoplastic copolymer produced by copolymerising epsilon -caprolactam with at least one monomer selected from the group which includes an amino acid having at least nine carbon atoms, or the corresponding lactam, and a mixture of hexamethylenediamine and a diacid having at least nine carbon atoms, the weight ratio of the epsilon -caprolactam to the total amount of hexamethylenediamine and diacid being 4-9; and at least one second thermoplastic polymer or copolymer produced by polymerising monomers having at least nine carbon atoms. The amount of second polymer or copolymer in the matrix is 40-80 wt.%, and the amount of resilience modifying compound is 20-50 wt.%, based on the weight of the thermoplastic composition. In use, articles such as fuel lines produced by shaping said composition have excellent properties. |
