| 摘要 |
The invention relates in a first form to the use of an insulation structure for electric or optical cables, comprising an internal layer L<SUB>1</SUB> of: a) at least one polyolefin, b) or at least one functionalised polyolefin, c) or a mixture of the two, a layer L<SUB>2</SUB> of adhesive binder, a layer L<SUB>3</SUB> with at least one fluorinated polymer to which at least one unsaturated monomer has been grafted by radiation, optionally mixed with at least one fluorinated polymer, optionally a layer L<SUB>4</SUB> with at least one fluorinated polymer. In a second form the structure comprises an internal layer L'<SUB>1 </SUB>of: a) at least one functionalised polyolefin Pl with chemical functions reacting with the grafted unsaturated monomer on the graft fluorinated polymer L'<SUB>2</SUB>, b) optionally at least one polyolefin, c) and/or optionally one other functionalised polyolefin P2, a layer L'<SUB>2</SUB> with at least one fluorinated polymer to which at least one unsaturated monomer has been grafted by radiation and optionally mixed with at least one fluorinated polymer, optionally a layer L'<SUB>3</SUB> comprising at least one fluorinated polymer. The invention further relates to the electric and/or optical cable itself. |
