Polyvinyl alcohol mediated splitting of Kevlar fibers and superior mechanical performances of the subsequently assembled nanopapers

Abstract

In this work, the composite of aramid nanofibers (ANFs) and polyvinyl alcohol (PVA) was prepared by PVA assisted splitting of macro Kevlar fibers, which assures the uniform wrapping of PVA chains on the surface of ANFs, thus leading to an enhanced interfacial bonding strength between ANFs and PVA. The morphological characterizations manifest the enhanced diameters of the ANFs after PVA wrapping. The subsequently assembled ANFs/PVA paper shows a strength of 283.25 MPa and a toughness of 32.41 MJm3, which are increased by 57% and 152% compared to the pure ANFs paper, respectively. The superior mechanical properties are attributed to the strong interfacial bonding strength, enhanced hydrogen bonding interactions, the densification of the materials, and the curved fracture paths. Meanwhile, the ANFs/PVA paper also shows robust UV shielding and visible transparency properties, as well as excellent environmental stabilities, especially under high and low temperatures.

Supplementary files

Article information

Article type
Paper
Submitted
16 Aug 2021
Accepted
12 Oct 2021
First published
13 Oct 2021

Nanoscale, 2021, Accepted Manuscript

Polyvinyl alcohol mediated splitting of Kevlar fibers and superior mechanical performances of the subsequently assembled nanopapers

S. E, Q. Ma, J. Huang, D. Ning and Z. Lu, Nanoscale, 2021, Accepted Manuscript , DOI: 10.1039/D1NR05362K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements