Acoustic damping glue, acoustic damping glue film and preparation method thereof

The embodiment of the invention relates to the technical field of acoustic damping materials, in particular to acoustic damping glue, an acoustic damping glue film and a preparation method of the acoustic damping glue film. The acoustic damping glue is prepared from the following raw materials in parts by weight: 90 to 100 parts of acrylate resin; 3-5 parts of hydrogenated rosin resin; 3 to 5 parts of hindered phenol; 3-5 parts of a plasticizer; 3-5 parts of a damping microcapsule; 0.5 to 1 part of an isocyanate cross-linking agent; wherein the damping microcapsule comprises a wall material and a core material, and the wall material is used for wrapping the core material; the core material is used for providing recoverable elastic deformation so as to improve the damping performance of the acoustic damping rubber layer. 本申请实施例涉及声学阻尼材料技术领域，尤其是涉及一种声学阻尼胶、声学阻尼胶膜及其制备方法。按照重量份计，所述声学阻尼胶的原料组成包括：丙烯酸酯类树脂90份～100份；氢化松香树脂3份～5份；受阻酚3份～5份；增塑剂3份～5份；阻尼微胶囊3份～5份；异氰酸酯交联剂0.5份～1份；其中，阻尼微胶囊包括壁材和芯材，壁材用于包裹芯材；芯材用于提供可回复的弹性形变进而提升声学阻尼胶层的阻尼性