Issue 21, 2013
From the journal:

Journal of Materials Chemistry C

Supersonic nanoblowing: a new ultra-stiff phase of nylon 6 in 20–50 nm confinement

Suman Sinha-Ray,†a   Min Wook Lee,†b   Sumit Sinha-Ray,a   Seongpil An,b   Behnam Pourdeyhimi,c   Sam S. Yoon*b  and  Alexander L. Yarin*a  

* Corresponding authors

a Department of Mech. & Ind. Eng., Univ. of Illinois at Chicago, Chicago, Illinois 60607-7022, USA
E-mail: ayarin@uic.edu
Fax: +1 312 413-0447
Tel: +1 312 996-3472

b Department of Mechanical Engineering, Korea Univ., Seoul, 136-713 Korea
E-mail: skyoon@korea.ac.kr
Fax: +82 2 926-9290
Tel: +82 2 3290-3376

c 3427 The Nonwovens Institute, North Carolina State Univ., Box 8301, Raleigh, NC 27695-8301, USA

Abstract

The 20–50 nm nanofibers hold great promise as functional fabrics, biomedical materials, filters, fuel cell membranes, ultra-speed fiber optics, electronics and sensorics. In our novel process of supersonic solution blowing of nylon-6, 20–50 nm nanofibers are obtained. Here we found a new phase of nylon-6, which differs from the known α-, β-, γ-, δ- and λ-phases, presenting itself as a novel χ-phase. It is characterized by the decrease of CH2 stretching, a shift of –NH stretching, a different type of hydrogen bond and a ten-fold increase in Young's modulus compared to those of post-processed macroscopic nylon fibers.

Graphical abstract: Supersonic nanoblowing: a new ultra-stiff phase of nylon 6 in 20–50 nm confinement

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Article information

DOI
https://doi.org/10.1039/C3TC30248B
Article type
Paper
Submitted
06 Feb 2013
Accepted
03 Apr 2013
First published
03 Apr 2013

J. Mater. Chem. C, 2013,1, 3491-3498

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Supersonic nanoblowing: a new ultra-stiff phase of nylon 6 in 20–50 nm confinement

S. Sinha-Ray, M. W. Lee, S. Sinha-Ray, S. An, B. Pourdeyhimi, S. S. Yoon and A. L. Yarin, J. Mater. Chem. C, 2013, 1, 3491 DOI: 10.1039/C3TC30248B

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