Halogen-free resin composition, insulated electric wire, and wire harness
View Patent ↗Disclosed are a halogen-free resin composition, an insulated electric wire, and a wire harness, which can maintain long-term thermal resistance without decreasing established mechanical properties, flame retardancy, flexibility, and the like even when the insulated electric wire coated with the halogen-free resin composition is used in a state where it is mixed with an insulated electric wire coated with a PCV resin composition.
1. A halogen-free resin composition comprising:
100 parts by weight of a base resin consisting of 70 to 90% by weight of a polypropylene-based resin and 30 to 10% by weight of an olefin-based or styrene-based thermoplastic elastomer,
50 to 100 parts by weight of a metal compound, wherein the metal compound is selected from the group consisting of magnesium hydroxide, aluminum hydroxide, antimony trioxide, antimony pentoxide, and zinc borate,
3 to 5 parts by weight of a phenol-based antioxidant,
0.1 to 1.0 part by weight of a salicylic acid-based metal scavenger,
3 to 5 parts by weight of a hydrazine-based metal scavenger, and
1 to 10 parts by weight of a metal oxide selected from the group consisting of zinc oxide, aluminum oxide, and magnesium oxide.
2. An insulated electric wire comprising a conductor and an insulator for coating the conductor, wherein the insulator is constituted by the halogen-free resin composition according to claim 1 .
3. A wire harness comprising plurality of insulated electric wires bound therein, wherein at least one of the insulated electric wires is constituted by the insulated electric wire according to claim 2 .