Vibration damping material

摘要

A vibration damping material according to one aspect of the present invention comprises a composition as a main component, the composition being prepared by mixing based on 100 parts by weight of acrylic rubber, at least, in an external ratio, 0.01 to 15 parts by weight of organic peroxide that can crosslink between epoxy-based crosslinking points with each other, 25 to 50 parts by weight of carbon black having a mean particle diameter of 22 to 45 nm, and 15 to 35 parts by weight of carbon black having a mean particle diameter of 70 to 85 nm; and crosslinking crosslinking points in the acrylic rubber with each other through the organic peroxide.

主权项

1. A vibration damping material comprising a composition as a main component, the composition being prepared by mixing, based on 100 parts by weight of acrylic rubber that is a polymer of at least one monomer selected from alkyl acrylate, alkoxyalkyl acrylate, alkyl methacrylate, and alkoxyalkyl methacrylate and a monomer that serves as an epoxy-based crosslinking point, in an external ratio, 0.01 to 15 parts by weight of organic peroxide that can crosslink between epoxy-based crosslinking points with each other, 1 to 100 parts by weight of tackifying resin, 1 to 20 parts by weight of plasticizer, 25 to 50 parts by weight of carbon black having a mean particle diameter of 22 to 45 nm, and 15 to 35 parts by weight of carbon black having a mean particle diameter of 70 to 85 nm; and crosslinking crosslinking points in the acrylic rubber with each other through the organic peroxide.