| 摘要 |
PURPOSE:To provide the titled flame-retardant low-smoking composition free from emission of corrosive gas, by compounding a polyolefin resin with a hydrated metal oxide or metal carbonate in combination with zinc borate, and crosslinking the resin by radiation. CONSTITUTION:A polyolefin resin composition composed mainly of an ethylene- vinyl acetate copolymer having a vinyl acetate content of >=50wt% is compounded with >=100pts.wt. of fillers comprising (A) a hydrated metal oxide (selected from aluminum hydroxide, magnesium hydroxide, calcium hydroxide and barium hydroxide) or a metal carbonate (selected from magnesium carbonate, magnesium calcium carbonate, calcium carbonate, zinc carbonate and barium carbonate) and (B) zinc borate, and the composition is crosslinked by radiation. The ratio of zinc borate in the filler is selected to be 0.25-0.75. |
