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Preparation and Properties of Self-Healing Waterborne Polyurethane Based on Dynamic Disulfide Bond
A self-healing waterborne polyurethane (WPU) materials containing dynamic disulfide (SS) bond was prepared by introducing SS bond into polymer materials. The zeta potential revealed that all the synthesized WPU emulsions displayed excellent stability, and the particle size of them was about 100 nm....
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8434390/ https://www.ncbi.nlm.nih.gov/pubmed/34502976 http://dx.doi.org/10.3390/polym13172936 |
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author | Ye, Gongbo Jiang, Tao |
author_facet | Ye, Gongbo Jiang, Tao |
author_sort | Ye, Gongbo |
collection | PubMed |
description | A self-healing waterborne polyurethane (WPU) materials containing dynamic disulfide (SS) bond was prepared by introducing SS bond into polymer materials. The zeta potential revealed that all the synthesized WPU emulsions displayed excellent stability, and the particle size of them was about 100 nm. The characteristic peaks of N-H and S-S in urethane were verified by FTIR, and the chemical environment of all elements were confirmed by the XPS test. Furthermore, the tensile strength, self-healing process and self-healing efficiency of the materials were quantitatively evaluated by tensile measurements. The results showed that the self-healing efficiency could reach 96.14% when the sample was heat treated at 70 °C for 4 h. In addition, the material also showed a good reprocessing performance, and the tensile strength of the reprocessed film was 3.39 MPa. |
format | Online Article Text |
id | pubmed-8434390 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-84343902021-09-12 Preparation and Properties of Self-Healing Waterborne Polyurethane Based on Dynamic Disulfide Bond Ye, Gongbo Jiang, Tao Polymers (Basel) Article A self-healing waterborne polyurethane (WPU) materials containing dynamic disulfide (SS) bond was prepared by introducing SS bond into polymer materials. The zeta potential revealed that all the synthesized WPU emulsions displayed excellent stability, and the particle size of them was about 100 nm. The characteristic peaks of N-H and S-S in urethane were verified by FTIR, and the chemical environment of all elements were confirmed by the XPS test. Furthermore, the tensile strength, self-healing process and self-healing efficiency of the materials were quantitatively evaluated by tensile measurements. The results showed that the self-healing efficiency could reach 96.14% when the sample was heat treated at 70 °C for 4 h. In addition, the material also showed a good reprocessing performance, and the tensile strength of the reprocessed film was 3.39 MPa. MDPI 2021-08-31 /pmc/articles/PMC8434390/ /pubmed/34502976 http://dx.doi.org/10.3390/polym13172936 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ye, Gongbo Jiang, Tao Preparation and Properties of Self-Healing Waterborne Polyurethane Based on Dynamic Disulfide Bond |
title | Preparation and Properties of Self-Healing Waterborne Polyurethane Based on Dynamic Disulfide Bond |
title_full | Preparation and Properties of Self-Healing Waterborne Polyurethane Based on Dynamic Disulfide Bond |
title_fullStr | Preparation and Properties of Self-Healing Waterborne Polyurethane Based on Dynamic Disulfide Bond |
title_full_unstemmed | Preparation and Properties of Self-Healing Waterborne Polyurethane Based on Dynamic Disulfide Bond |
title_short | Preparation and Properties of Self-Healing Waterborne Polyurethane Based on Dynamic Disulfide Bond |
title_sort | preparation and properties of self-healing waterborne polyurethane based on dynamic disulfide bond |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8434390/ https://www.ncbi.nlm.nih.gov/pubmed/34502976 http://dx.doi.org/10.3390/polym13172936 |
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