西安工程大学学报2017，Vol.31Issue(3)：315-321,7.DOI:10.13338/j.issn.1674-649x.2017.03.004
芳纶针刺毡在高温下的孔径分布变化
Pore size distribution changes of aramid needle-punched felt in hight temperature
摘要
Abstract
In order to investigate pore size's distribution and change of aramid needle-punched felt with different needle-punched densities at different temperatures,using 100 ％ aramid 1313 fiber as raw material,aramid 1313 needle felts with five kinds of needle-punched densities were prepared by nonwoven acupuncture process.And the samples were treated at high temperature (100 ℃,150 ℃,200 ℃,250 ℃,treating time was 60 minutes) and then tested.The results show that with the increase of the needle-punched density,the pore size distribution becomes more and more concentrated and uniform.When the needle-punched density is 350 strokes/cm2,the pore size is the smallest,and the distribution is the most concentrated and the filtration effect is the best.Below 200 ℃,with the increase of tem perature,the pore size distribution is highly concentrated,but the air permeability,pore size and distribution change little.When the treating temperature rises to 250 ℃,the distribution is significantly dispersed,the pore size and the air permeability increases,which shows that the internal structure is damaged,and then the filter performance reduces obviously.关键词
芳纶1313纤维/针刺毡/孔径分布Key words
aramid 1313 fiber/needle-punched felt/pore size distribution分类
管理科学引用本文复制引用
刘造芳,张得昆,张星..芳纶针刺毡在高温下的孔径分布变化[J].西安工程大学学报,2017,31(3):315-321,7.基金项目
陕西省产业用纺织品科研资助项目(20152X-24) （20152X-24）
