▎ 摘　　要

NOVELTY - Diaphragm of sounding device, comprises at least one modified acrylate rubber film layer prepared by mixing inorganic hollow microspheres, additives and acrylate polymers to form a mixed rubber and performing a crosslinking reaction, where the particle size of the inorganic hollow microspheres is 1-60 μm, and the distribution density of the inorganic hollow microspheres in the modified acrylate rubber film layer is 0.15-0.9 g/cm3, and immersing the modified acrylate rubber film layer in an oily solvent at 150℃ for 70 hours, where the breaking strength reduction ratio of the modified acrylate rubber film layer is ≤30%, and the swelling ratio is ≤20%. USE - Diaphragm of sounding device. ADVANTAGE - The diaphragm reduces the density of the vibrating diaphragm material, improves the intermediate frequency sensitivity of the sounding device, and has excellent solvent-resistant swelling performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a sounding device. DESCRIPTION OF DRAWING(S) - The drawing a whole structure schematic diagram of the sounding device. 100Sound-producing device