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Blends of EPDM and metallocene plastomers for wire and cable applications
Blends of EPDM and metallocene plastomers for wire and cable applications
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机译:EPDM和茂金属塑性体的混合物,用于电线和电缆应用
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摘要
Power cable coating compounds are disclosed, the coating compounds including an ethylene alpha-olefin diene elastomeric terpolymer, and an ethylene alpha-olefin copolymer having a Melt Index Ratio I10/I2 of at least 7 and/or a Melt Index Ratio I21/I2 of at least 20. In various embodiments, the ethylene alpha-olefin copolymer can be present in the coating compound in amounts up to 90 percent by weight, based on the weight of the ethylene alpha-olefin diene elastomeric terpolymer and the ethylene alpha-olefin copolymer. Also disclosed are electrical devices including extruded coating compounds, the extruded compounds having low surface roughness at high extrusion rates.
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机译:公开了一种电力电缆涂料化合物,该涂料化合物包括乙烯-α-烯烃二烯弹性三元共聚物和熔融指数比为I 10 Sub> / I 2 Sub的乙烯α-烯烃共聚物。 >至少为7和/或熔融指数比率I 21 Sub> / I 2 Sub>至少为20。在各种实施方案中,乙烯α-烯烃共聚物可以以以乙烯-α-烯烃二烯弹性三元共聚物和乙烯-α-烯烃共聚物的重量为基准计,涂料化合物的用量最高达90%(重量)。还公开了包括挤出的涂料化合物的电气装置,所述挤出的化合物在高挤出速率下具有低的表面粗糙度。
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