Foam compositions for sound-absorbing materials with improved fire-retardancy and sound-absorption and sound-absorbing materials for sound box using the same

摘要

The present specification is a foamable polyurethane raw material; thermoplastic resin powder; Disclosed are a foamed composition for a sound-absorbing material formed by mixing boric acid and carbon nanostructures and having improved flame retardancy and sound-absorbing properties, and a sound-absorbing material for an acoustic chamber manufactured using the foamed composition for sound-absorbing material of the present invention.