The invention discloses a sound-absorbing and shock-absorbing elastomer for automobile drainage pipes and a preparation method thereof. In the preparation method, one or more of vinyl-polydiene-styrene block copolymer, hydrogenated styrene-butadiene copolymer and hydrogenated styrene-butadiene block copolymer are added to a hydrogenated styrene-ethylene-butadiene-styrene block copolymer, so that the temperature at the peak loss factor of the prepared high sound-absorbing and shock-absorbing thermoplastic elastomer blend is close to room temperature. When subjected to external force at room temperature, molecular motion friction consumes a large amount of energy by converting kinetic energy into thermal energy without energy transmission, thus achieving sound absorption and shock absorption. The preparation method uses a material mixing device to mix the raw materials of the sound-absorbing and shock-absorbing elastomer, promoting the fusion of components, so that automobile drainage pipes made of the elastomer have high quality and long service life.
Area Code: CN
Application Number: CN202010589416.7
