| 摘要 |
Provided is a halogen-free flame-resistant cable coating composition, which shows excellent resistance against dynamic pressure at high temperature, has high durability to saline, water and light oil, ensures low flammability and flame resistance, and thus is useful for coating cables for railroad vehicles. The cable coating composition comprises: 100 parts by weight of a base resin comprising 50-80 parts by weight of an ethylene vinyl acetate copolymer whose vinyl acetate content is 50-80 wt%, and 20-50 parts by weight of an ethylene vinyl acetate copolymer whose vinyl acetate content is 28-49 wt%; 60-250 parts by weight of a mixed metal hydroxide as a halogen-free flame retardant, which comprises 30-100 parts by weight of a non-surface treated metal hydroxide and 30-150 parts by weight of a metal hydroxide surface treated with silane; 1-30 parts by weight of a supplementary flame retardant; 0.5-5 parts by weight of a silane coupling agent; 0.5-8 parts by weight of a crosslinking aid; and 3-15 parts by weight of a crosslinking agent.
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