Abstract
The harm of sound pollution to human health is nonnegligible. To construct a good sound absorbent fabric, we proposed a combination of flat-knitting and microfibers, which is a simple and effective way to prepare a hierarchical three-dimensional spacer fabric with macroscopic and microscopic pore structure. The effects of spacer layer structure, surface yarn thickness and sea islands composite filaments split durations on sound absorption property were investigated. The sound absorption property was evaluated by the sound absorption coefficient and noise reduction rate. The results show that the sound absorption property of the spacer fabric is improved by splitting, especially under the middle frequency range (1000–3000 Hz). What is more, the noise reduction rate of our layered hierarchical spacer fabric increased by 4.1% with the thickness decreased by 21.1% compared with a recently reported hierarchical porous sound absorbent fabric.
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.
