Abstract
Addition-molded room temperature vulcanized liquid silicone rubber (LSR) has become the promising candidate for environmentally friendly sound-absorbing materials, but the absorption efficiency should be further improved. In this study, the Halloysite nanotubes (HNTs) are chosen as the additive with the aim to improve the sound absorption performance of the LSR. Furthermore, the effect of the addition amount of HNTs on the mechanical properties and frequency dependent sound absorption efficiencies are investigated. Results indicate that the fabricated samples show effective high-frequency sound absorption and excellent mechanical properties. The mechanism of the improved sound absorption efficiency in high frequencies is discussed, which is believed to be attributed to the synergistic effect in the multiscale structure: 1) complex interfacial interactions at the surfaces of HNTs; 2) the friction between the air in the cavity and the inner wall of HNTs. Therefore, introducing the HNTs into the traditional silicone rubber would be an efficient way to improve the absorption efficiency for high frequency sound waves.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
