Preparation method of fire-retardant and smoke-suppression sheath material and aluminum alloy power cable

Abstract

The application discloses a kind of fire-retardant smoke-suppressing sheath material and the preparation method of aluminum alloy power cable, belong to power cable technical field, with ethylene-vinyl acetate copolymer (EVA) as matrix main body, compound polyolefin elastomer (POE) toughening effect is played, and join MH-WD70-DOPO flame retardant, KH570 modified wollastonite powder, expandable graphite, MXene@PDA-EVA wax masterbatch and microencapsulated ammonium polyphosphate as flame-retardant functional component, also join dilauryl thiodipropionate (DLTP) and crosslinking system, by dense mixing, open mill, extrusion granulation and coating vulcanization, aluminum alloy power cable is prepared, by the synergistic effect of titanium-containing component, carbonization component and phosphate sintering bonding component, realize the improvement of flame-retardant, smoke suppression and mechanical property.