Low-smoke halogen-free flame-retardant cable and processing technology thereof

The invention relates to the technical field of cable processing, and particularly discloses a low-smoke halogen-free flame-retardant cable and a processing technology thereof. The low-smoke halogen-free flame-retardant cable comprises a cable core, a wrapping layer, a filler and a sheath layer, the sheath layer is formed by extruding a polyolefin low-smoke halogen-free flame-retardant material; the polyolefin low-smoke halogen-free flame-retardant material is mainly prepared from the following raw materials: polyolefin resin, linear low-density polyethylene, tris (2-methoxyethoxy) vinyl silane, oleamide propyl betaine, a peroxide cross-linking agent, an ethylene-vinyl acetate copolymer, calcium sulfate whiskers, magnesium hydroxide and modified montmorillonite. The modified montmorillonite is obtained by treating montmorillonite with tris (2-methoxyethoxy) vinyl silane, ethyl 3-crotonate and diethanol amine. The polyolefin low-smoke halogen-free flame-retardant material has the advantages of high flame retar