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BY 4.0 license Open Access Published by De Gruyter September 18, 2019

Post-processed chemical treatment of polyimide electrospun nonwovens with ethylenediamine for biomedical applications

  • Stefan Oschatz EMAIL logo , Daniela Arbeiter , Thomas Eickner , Niels Grabow and Sabine Illner

Abstract

The generation of electrospun nonwovens from polyimide (PI) is challenging as the fibers are prone to distinct delamination. In consequence, the resulting nonwoven material has particularly low structural integrity and loose fibre interlocking, demanding for a follow-up treatment, such as high temperature thermal treatment. In this work, a facile method for a post-processed treatment of PI nonwoven is presented in order to obtain a mechanically stable material while maintaining the characteristics of the electrospun nonwoven. The procedure was performed using a solution of EDA in methanol at 37 °C and ambient pressure to achieve a modified fiber interaction. Overall, the developed protocol opens new possibilities in the processing of PI into delamination-free nonwovens. Potential adverse effects of a high temperature thermal treatment are being avoided, and new applications in the field of medical devices may become accessible.

Published Online: 2019-09-18
Published in Print: 2019-09-01

© 2019 by Walter de Gruyter Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 Public License.

Downloaded on 4.3.2024 from https://www.degruyter.com/document/doi/10.1515/cdbme-2019-0082/html
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