纺织工程学报2024，Vol.2Issue(1)：44-54,11.
预氧化聚丙烯腈纳米纤维膜声学性能研究
Acoustic performance of electrospun preoxidized PAN nanofiber membrane
摘要
Abstract
Preoxidized polyacrylonitrile(OPAN)nanofiber membrane with excellent acoustic performance was prepared by the preoxidation of electrospun PAN nanofiber membrane.The effects of nanofiber diameter and po-rosity on acoustic performance were studied,and the results showed that the sound loss value of OPAN nanofi-ber membrane in the full frequency range(1 k～10 kHz)was-2.01dB～+3.12dB,and the sound loss value in-creased with the increase of nanofiber diameter.As to promote the modulus of the OPAN nanofiber membrane,polyamic acid(PAA)was introduced into the PAN nanofiber membrane,and while the PAN was preoxidized,the PAA was thermally imidized to finally obtain the OPAN/PI nanofiber membrane.When the OPAN/PI mass ratio was 7∶3,the nanofiber membrane had the highest Young's modulus(2000.07 MPa)and the lowest sound loss value of 1.24 dB(1000 Hz).In addition,OPAN/PI nanofiber membranes showed lower sound loss values at low frequencies(100-1000 Hz)compared with OPAN nanofiber membranes,owing to the higher Young's modu-lus.关键词
OPAN/PI/静电纺丝/纳米纤维膜/声学性能Key words
OPAN/PI/electrospinning/nanofiber membrane/acoustic performance分类
化学化工引用本文复制引用
王宇,孙凯旋,黄庆林..预氧化聚丙烯腈纳米纤维膜声学性能研究[J].纺织工程学报,2024,2(1):44-54,11.基金项目
天津市科学技术委员会创新平台专项(18PTSYJC00170). （18PTSYJC00170）
