English Abstract

Fundamentals and Technical Data of Dumping Materials

Fumito TAKEUCHI
Elastmer Department, Polymeric Materials Laboratory, R&D Center, Mitsui Chemicals, Inc., Ichihara-City, Chiba, Japan
Nippon Gomu Kyokaishi,(2016),89(8),249-253 General Review in Japanese

This article gives an overview of the fundamentals of polymeric materials for vibration damping. Based on vibration transmissibility of single degree of freedom systems, the differences between vibration isolation and vibration damping are described. Mechanism and materials design of the vibration damping materials are outlined with viscoelastic properties and those structures. As an example of controlling loss factor in viscoelastic properties, the formulations of EPDM with carbon black are described.

Keywords: Polymeric Materials for Vibration Damping, Transmissibility, Viscoelastic Properties, Storage Modulus, Young's Modulus, Loss Factor, tanɬ, EPDM