Vigilancia Tecnológica

A rubber diaphragm of the present invention contains 0.3%-60% by mass of a distortion improver, wherein the distortion improver is a high-molecular polymer with a hyperbranched structure and has 0.01%-15% by mass of special chemical crosslinking points, the branched chains of the high-molecular polymer with the hyperbranched structure are long-chain structures or short-chain structures prepared by means of living polymerization, each distortion improver molecule contains at least three long-chain structures or short-chain structures, the long-chain structures or short-chain structures have a number-average molecular weight of 200-50,000, the special chemical crosslinking points are distributed at the outermost end of the hyperbranched structure, and at least six carbon atoms are spaced between adjacent special chemical crosslinking points. The damping peak position, height and width of the rubber diaphragm of the present invention are controllable, thereby improving the mechanical properties, and ensuring that the rubber diaphragm has stable performance and excellent processability. The present invention further provides a sound production device and a use thereof.