Composition for electric wire coating material, insulated electric wire, and wire harness
申请人:AutoNetworks Technologies, Ltd.
公开号:US10102940B2
公开(公告)日:2018-10-16
Provided is an insulated electric wire, a wire harness, and a composition for an electric wire coating material with which the amount of a filler, which is the flame retardant, can be reduced as much as possible without using electron beam crosslinking, the composition having a high heat resistance, a high gel fraction, flexibility, and good workability of assembling a wire harness. An electric wire coating material is made of a composition comprising (A) a silane-grafted polyolefin obtained by grafting a silane coupling agent onto a polyolefin having a density of 0.855 to 0.885 g/cm3, (B) an unmodified polyolefin having a density of 0.890 to 0.955 g/cm3, (C) a modified polyolefin modified by one or more functional groups selected from a carboxylic acid group, an acid anhydride group, an amino group, an acrylic group, a methacrylic group, and an epoxy group, (D) a bromine-based flame retardant and antimony trioxide, (E) a crosslinking catalyst batch, (F) zinc oxide and an imidazole-based compound, or zinc sulfide, (G) an antioxidant, (H) a metal deactivator, and (I) a lubricant.
本发明提供了一种绝缘电线、一种电线束以及一种电线涂层材料的组合物,该组合物无需使用电子束交联,即可尽可能减少作为阻燃剂的填料的用量,该组合物具有高耐热性、高凝胶率、柔韧性以及组装电线束的良好作业性。一种电线涂层材料是由一种组合物制成的,该组合物包括:(A) 通过在密度为 0.855 至 0.885 g/cm3 的聚烯烃上接枝
硅烷偶联剂而获得的
硅烷接枝聚烯烃;(B) 密度为 0.890 至 0.955 g/cm3,(C)由一个或多个官能团改性的改性聚烯烃,这些官能团选自
羧酸基团、酸酐基团、
氨基基团、
丙烯酸基团、
甲基丙烯酸基团和环氧基团、(D)
溴基阻燃剂和
三氧化二锑, (E) 交联催化剂批, (F)
氧化锌和
咪唑基化合物或
硫化锌, (G)
抗氧化剂, (H)
金属失活剂,以及 (I) 润滑剂。