VIBRATION DIAPHRAGM FOR MINIATURE SOUND PRODUCTION DEVICE AND MINIATURE SOUND PRODUCTION DEVICE

摘要

Disclosed are a vibration diaphragm for a miniature sound production device and the miniature sound production device. The vibration diaphragm for the miniature sound production device is made of a polyacrylate copolymer, a reinforcing agent is mixed in the polyacrylate copolymer, the reinforcing agent comprises at least one of carbon black, silicon dioxide, calcium carbonate, and barium sulfate, the polyacrylate copolymer in parts by mass is 100 parts, the reinforcing agent itself in parts by mass is 1-90 parts, and the elongation at break of the vibration diaphragm is greater than 100%. The provided vibration diaphragm has better acoustic performance.