Cable Composition of Propylene Copolymer PP-K, PP-KM
Specification 2243-004-12741606-2001 Main propertiesPolypropylene copolymer compositions, resistant to high temperature and copper ions. PurposeUsed in the making of extruded insulation of cables and wires which is also resistant to high temperature of environment, including exposure to copper ions for submersible electrical pumps used in petroleum industry and geological exploration. Technical characteristics| Melt molding index, g/10 min. | 1,2-2,0 | | Spread of melt molding index within shipment, %, not more than | ±10 | | Amount of volatile matter, %, not more than | 0,09 | | Yield point during stretching, MPa, not less than | 27 | | Percent elongation during rupture, %, not less than | 450 | | Amount of inclusions, pieces, not more than | 3 | | Resistance to thermooxidation ageing at 150°С in air environment, h, not more than | 1500 | | Time to the decomposition of the sample in contact with copper wire during thermostating at 150±5°С, h, not less than | not specified | | Specific body electrical resistivity at 20°С, Om cm., not less than | 1x1014 | | Electric strength (by the sample thickness of 1 mm) by frequency voltage fluctuation 50 Hz, kV/mm, not less than | 40 | | Brittle point, °С, not less than | -50 | | Splitting resistance, h, not less than | 500 | | | |
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