| abstract |
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyvinyl chloride (PVC) flame retardant material for electric wires, comprising: a plasticizer 40 alone or mixed with a phosphate plasticizer or bromine plasticizer, based on 100 parts by weight of a polyvinyl chloride resin having a polymerization degree of 1,000 to 1,700. ~ 80 parts by weight, flame retardant alone or in combination with alumina trihydrate, magnesium hydroxide, humite or hydromagnesite, 30 ~ 100 parts by weight, 5 ~ 20 parts by weight of ammonium octamolybdate, zinc-molybdate complex 5 ~ 20 , 1 to 10 parts by weight of zinc borate and antimony (III) oxide (IIIb oxide; Sb 2 O 3 ) It is characterized by consisting of 1 to 10 parts by weight. The flame retardant material according to the present invention has low smoke and high flame retardancy characteristics and at the same time has excellent flexibility. |