Taokai-porcelainizing halogen-free low-smoke flame-retardant polyolefin composition and use thereof

The invention discloses a Taokai-porcelainizing halogen-free low-smoke flame-retardant polyolefin composition and a use thereof. The composition includes the components by the mass percentage: 10-45% of mineral silicate, 10-20% of melamine cyanurate, 15-50% of a high-molecular polymer or an alloy thereof, 0-18% of a sensitizer, 4%-7% of an additive, and 0%-2% of a peroxide, wherein the high-molecular polymer or the alloy thereof can be selected from at least one of thermoplastic high polymers, thermosetting high polymers, thermoplastic elastomers, crosslinked high polymers, crosslinked elastomers or rubber copolymers or mixtures thereof. Under a condition of the temperature of 350 DEG C or more, the composition provided by the invention can be sintered into a hard microporous shell body having the advantages of insulation, fire insulation, heat insulation, flame retardancy, fire prevention and fire resistance; the composition is low in smoke, non-toxic and harmless in an ablation process; the composition can