Radiation-crosslinking flame retardant polyolefin material for car thin-wall electric wire and preparation method of material
A polyolefin and thin-wall technology, applied in the field of plastic particles and its preparation, can solve the problems of low decomposition temperature of polyvinyl chloride, poor aging resistance, and restrictions on use occasions, and achieve oil resistance, low temperature resistance, and steel resistance. Excellent needle scraping performance and improved aging resistance
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Embodiment 1
[0034] First select the ethylene-propylene copolymer resin of 40 parts by weight, the ethylene vinyl acetate resin of 50 parts by weight, the cyanoacrylate rubber of 9 parts by weight, the flame retardant of 45 parts by weight, the antioxidant of 0.4 parts by weight, the antioxidant of 0.6 parts by weight part of crosslinking agent, 0.3 part by weight of anti-degradation agent and 0.2 part by weight of lubricant.
[0035] Then, the ethylene-propylene copolymer resin, ethylene vinyl acetate resin, cyanoacrylate rubber and crosslinking agent were added together into an internal mixer at a temperature of 160° C., and kneaded for 10 minutes to obtain a mixed resin.
[0036] Afterwards, the mixed resin is fed into a twin-screw extruder with six temperature sections for a mild chemical crosslinking reaction and a pre-crosslinked block mixture. The temperatures of the six temperature sections of the twin-screw extruder are respectively 140 degrees Celsius, 160 degrees Celsius, 175 de...
Embodiment 2
[0049] First select the ethylene-propylene copolymer resin of 45 parts by weight, the ethylene vinyl acetate resin of 45 parts by weight, the cyanoacrylate rubber of 10 parts by weight, the flame retardant of 50 parts by weight, the antioxidant of 0.8 parts by weight, the antioxidant of 0.8 parts by weight Parts of crosslinking agent, 0.5 parts by weight of anti-beta ray degradation agent and 0.3 parts by weight of lubricant.
[0050] Then, ethylene-propylene copolymer resin, ethylene vinyl acetate resin, cyanoacrylate rubber and crosslinking agent were added together into an internal mixer at a temperature of 165° C., and kneaded for 11 minutes to obtain a mixed resin.
[0051] Afterwards, the mixed resin is fed into a twin-screw extruder with six temperature sections for a mild chemical crosslinking reaction and a pre-crosslinked block mixture. The temperatures of the six temperature sections of the twin-screw extruder are respectively 140 degrees Celsius, 160 degrees Celsiu...
Embodiment 3
[0064] First select the ethylene-propylene copolymer resin of 50 parts by weight, the ethylene vinyl acetate resin of 40 parts by weight, the cyanoacrylate rubber of 11 parts by weight, the flame retardant of 55 parts by weight, the antioxidant of 1.0 parts by weight, the antioxidant of 1.0 parts by weight part of crosslinking agent, 0.6 part by weight of anti-beta ray degradation agent and 0.5 part by weight of lubricant.
[0065] Then, ethylene-propylene copolymer resin, ethylene vinyl acetate resin, cyanoacrylate rubber and cross-linking agent were added together into an internal mixer at a temperature of 170° C., and kneaded for 12 minutes to obtain a mixed resin.
[0066] Afterwards, the mixed resin is fed into a twin-screw extruder with six temperature sections for a mild chemical crosslinking reaction and a pre-crosslinked block mixture. The temperatures of the six temperature sections of the twin-screw extruder are respectively 140 degrees Celsius, 160 degrees Celsius,...
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