The invention relates to a high-fluidity low-
smoke zero-
halogen flame retardant
polyolefin composite and a preparation method of the high-fluidity low-
smoke zero-
halogen flame retardant
polyolefin composite. The composite comprises the following components by weight: a matrix resin comprising 40-60 parts of
high density polyethylene and 5-10 parts of
ethylene-
vinyl acetate copolymer, a
flame retardant comprising 20-30 parts of
halogen-free flame retardant, 5-10 parts of
zinc borate and 1-5 parts of flaming retardance synergist, 10-15 parts of flow modifier, 1-2 parts of
lubricant, 2-5 parts of compatilizer, 0.1-0.5 part of interfacial modifier, 0.3-0.5 part of
antioxidant, and 0.3-0.5 part of anti-
ultraviolet agent. The preparation method comprises the following steps of preparing and mixing the components, extruding, pelleting, water-cooling, sized-dicing, and
drying. Compared with the prior art, the high-fluidity low-
smoke zero-halogen flame retardant
polyolefin composite has the following characteristics that the material has excellent fluidity (the melt index is up to 9-12 g / 10min) and excellent flame retardant property (the
oxygen index is up to 32-34%). The composite further has the advantages of low smoke, zero halogen, excellent dripping resistance, excellent
ultraviolet resistance, excellent anti-
aging property and good processability.