▎ 摘　　要

NOVELTY - Polyolefin composition with reinforced negative ion amount comprises 60-90 pts. wt. polyolefin mixture, 5-30 pts. wt. filler, 1-5 pts. wt. negative ion release agent, 1-10 pts. wt. conductive agent, 1-3 pts. wt. auxiliary agent, 0.1-0.3 pts. wt. lubricant, 0.2-0.5 pts. wt. antioxidant, and 0.2-0.5 pts. wt. weather-resistant agent, where the auxiliary agent is diethanolamine with long-chain alkyl group. USE - The polyolefin composition with reinforced negative ion amount is useful in automobile interior trim, home appliance trim panel and plastic parts in public facilities or private spaces (claimed). ADVANTAGE - The polyolefin composition: is capable of stably and efficiently releasing negative ion; releasing long service life; and improves air quality of the working environment of life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing polyolefin composition with reinforced negative ion amount comprising (1) placing polyolefin mixture, negative ion release agent, conductive agent, auxiliary agent and various processing aids into high mixer by the described weight portion and mixing 3-4 minutes at 500-800 revolutions/minute to obtain a premix, (2) feeding premix from the main feeding port of the twin-screw extruder, and filler from the side feeding port for melt extrusion, plasticizing, extruding, and pelletizing to obtain a polyolefin composition material with enhanced negative ion release, where the screw length-diameter ratio of the twin-screw extruder is 40-48:1, the melt extrusion conditions of the twin-screw extruder are: the temperature of the first zone is 190-210℃ the temperature of the second zone is 210-220℃, the temperature of the third zone is 215-225℃, the temperature of the fourth zone is 215-225℃, the temperature of the fifth zone is 215-215℃, the temperature of sixth zone is 215-225℃, the temperature of the seventh zone is 220-230℃, the temperature of eight zone is 220-230℃, the temperature of ninth zone is 220-230℃, the temperature of tenth zone is 210-220℃, the temperature of eleventh zone is 210-220℃, the main feeding rate is 300-400 kg/hour, and the screw speed is 700-900 revolutions/minute.