公开(公告)号：US20230257545A1

公开(公告)日：2023-08-17

申请号：US17673818

申请日：2022-02-17

Applicant: Zhiyi Lu

Inventor： Zhiyi Lu

IPC: C08J9/33 ,  C08J9/00 ,  C08J5/18 ,  C08L75/08

CPC classification number: C08J9/33 ,  C08J9/0061 ,  C08J9/0066 ,  C08J5/18 ,  C08L75/08 ,  C08J2375/08 ,  C08J2479/08 ,  C08L2203/14 ,  C08L2207/20

Abstract: The invention discloses a method for manufacturing a new sound-absorbing and noise-reducing material by using polyimide foam scraps, cutting and processing the scraps generated in the process of polyimide foam production into particles of different sizes, drying red iron oxide or black iron oxide or titanium dioxide as inorganic additive, and then using each component in parts by weight, putting the inorganic additive into the mixer, and then putting the polyimide foam particles of different sizes into the mixer to mix, injecting the curing agent into the mixer to continue mixing, and finally adding the catalyst into the mixer to continue mixing, putting the mixed material into the mold evenly to form the film, leaving it for 10 hours, opening the mold, taking out the product, removing the burrs, and cutting the product according to customer needs, and packing it in a carton for storage.