Butyl damping material

The invention discloses a butyl damping material. The butyl damping material comprises a damping layer and a restraint layer, wherein the damping layer is composed of the following components in percentage by mass: 20-30% of butyl rubber, 10-20% of polyisobutene, 30-40% of a filling agent, 10-20% of calcium carbonate and 5-10% of tackifying resin, and the restraint layer is 100% aluminum foil. Thebutyl damping material mainly realizes damping and noise reduction effects, improves NVH performance of a complete vehicle and enhances comfort of a passenger; and as a damping sizing material has excellent viscosity, the butyl damping material is especially applicable to top or a vertical face, can be continuously fixed at a paved and pasted part after being pasted and can not slide. 本发明公开了种丁基阻尼材料，包括阻尼层和约束层，所述阻尼层由丁基橡胶、聚异丁烯、填充剂、碳酸钙、增黏树脂组成，按质量百分含量计，所述约束层为铝箔100％，所述阻尼层丁基橡胶20～30％、聚异丁烯10～20％、填充剂30～40％、碳酸钙10～20％、增黏树脂5～10％。主要起减震降噪的作用，改善整车的NVH性能，提升乘客的舒适性，由于阻尼胶料本身有优异的粘性，丁基阻尼材料尤其适用于顶部或立面，粘贴后可以持续固定在铺贴部位，不会发生滑动。