Novel insulated special cable and preparation method thereof

Abstract

The invention discloses a novel PPEK insulated special cable. The novel PPEK insulated special cable comprises a conductor (1), the conductor (1) is plated with nickel, and a PPEK insulation layer (2) covers the nickel-plated conductor (1). A fireproof layer (3) wraps the PPEK insulation layer (2). A wear resistant layer (4) is braided outside the fireproof layer (3). The conductor of the cable is made of nickel-plated copper wires, and the insulation layer is made of polyetherketone resin. Being prepared through high-temperature melting and extruding at 350 DEG C, the novel PPEK insulated special cable has the following characteristics: the heat resistance is stable, and the conductor works at 260 DEG C for a long term; the radiation resistance is not lower than 10<8>Gy; the insulation property is good, the volume resistivity is 10<16> Omega CM, and the electric breakdown strength is 43Kv / mm; the tensile strength is not lower than 106Pma; the flame retardancy is excellent, and the oxygen index is 33; the cable is resistant to hydrolysis, can safely work in 100-DEG C water vapor for a long term, and is moisture-proof and mould-proof; the cable has excellent chemical stability and is resistant to gasoline, acetone, ethanol, xylene and sea water; and the cable is light in specific gravity, the specific gravity of the cable is 1.32 and is 65% of that of fluorine resin, and the cable is non-toxic.

Description

technical field [0001] The invention relates to the field of cables, in particular to a novel PPEK insulated special cable and a preparation method thereof. Background technique [0002] With the development of society, especially the acceleration of industrialization and informatization, all aspects of society have made a qualitative leap. In the progress of the whole society, electricity has played an irreplaceable role as the power source of many equipment, and as The power transmission conductor cable is indispensable. [0003] With the widespread use of electric power, higher and higher requirements are put forward for the cable equipment that transmits electric power. Inexpensive. [0004] The existing high-temperature-resistant special cable insulation is mostly made of fluororesin, which has a large specificity (2.1-2.2), contains fluorine and is toxic, environmentally friendly and clean, and is not resistant to hydrolysis and radiation. [0005] Therefore, it is ...

AI Technical Summary

Problems solved by technology

[0004] The existing high-temperature-resistant special cable insulation is mostly fluororesin, which has a large specificity (2.1-2.2), contains fluorine and is toxic, environmentally friendly and clean, and is not resistant to hydrolysis and radiation.

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