<p>A nanoweb that contains a plurality of nanofibers wherein the nanofibers contain a fully aromatic polyimide that is characterized by having a crystallinity index (CI) and a degree of imidization (DOI). The product of the DOI and the CI is between 0.08 and 0.25 or above a lower limit to obtain a desired tensile strength and/or toughness. The nanoweb may for example have a tensile strength per unit basis weight of greater than 15 kg/cm2 per gram per square meter unit of basis weight.</p>
申请公布号
EP2727170(A1)
申请公布日期
2014.05.07
申请号
EP20120735385
申请日期
2012.06.27
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
DENNES, T. JOSEPH;SIMMONDS, GLEN E.;ARORA, PANKAJ;LEVIT, NATALIA, V.