The invention discloses a
low smoke zero halogen flame retardant material for a
high voltage cable jacket. The
low smoke zero halogen flame retardant material comprises the following components in percent by weight: 10-20 percent of
metallocene polyethylene, 2-5 percent of
ethylene vinyl acetate copolymer with a melt index of 2-8, 10-15 percent of
acrylic acid grafted
high density polyethylene, 20-30 percent of
magnesium hydrate as an inorganic
flame retardant, 30-40 percent of aluminum
hydroxide as an inorganic flame retardant, 20-30 percent of organosilicone, 0.5-1 percent of
molybdenum disulfide, 0.2-1 percent of 172
silane coupling agent, 0.5-1 percent of an antioxygen and 1-2 percent of a lubricating agent. By adopting effective matching of materials of a compatilizer
acrylic acid grafted
high density polyethylene, special modified polyethylene
metallocene polyethylene,
ethylene vinyl acetate copolymer and the like of a
halogen-free flame retardant material, the
mechanical strength and the
hardness of the
low smoke zero halogen flame retardant material are improved; through adding a
silicon series lubricating agent and a
molybdenum series lubricating agent in a material formula
system, lower
friction coefficient is realized on the surface of the low
smoke zero
halogen flame retardant material, and the abrasion resistance of the cable jacket can be effectively improved through good
mechanical strength and wear-resistant property of the low
smoke zero
halogen flame retardant material; and the inorganic flame retardants are coupled by adopting the 172
silane coupling agent, so that the
caking property of the jacket material and the
graphite or conductive polyethylene layer material on the surface of the jacket material is good, the conductive material is prevented from separating,
partial discharge current of a cable can not be effectively released, and the high-
voltage cable is effectively used.