<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The purpose of this research was to create bio-based non-isocyanate polyurethane (Bio-NIPU) resins derived from the tannin of <italic>Acacia mangium</italic> Willd. bark for the impregnation of ramie fibres (<italic>Boehmeria nivea</italic> L.) and to investigate the properties of impregnated fibres. Tannin was extracted from the bark of <italic>A. mangium</italic> using hot water. Tannin-bio-NIPU resin was created using dimethyl carbonate and hexamine. Based on the findings, it is possible to conclude that tannin extract from the bark of Acacia mangium can be used effectively as a renewable alternative to toxic polyols in the development of tannin-Bio-NIPU resins. FTIR spectroscopy was used to confirm the urethane bond formed on the tannin-Bio-NIPU resins. Thermal and mechanical analysis were used to investigate the properties of tannin-Bio-NIPU resins and ramie fibres before and after impregnation. This study shows that the impregnation time of ramie fiber using tannin-Bio-NIPU resins is 30 minutes. The reaction between tannin-Bio-NIPU resins with ramie fiber forms the C=O urethane group as confirmed by FTIR Spectroscopy. The characterization results show that tannin-Bio-NIPU resins has ability to modify ramie fiber via impregnation in order to increase its mechanical properties, thus enhancing its potential for wider industrial application as a functional material.</p>
</abstract>

The purpose of this research was to create bio-based non-isocyanate polyurethane (Bio-NIPU) resins derived from the tannin of Acacia mangium Willd. bark for the impregnation of ramie fibres (Boehmeria nivea L.) and to investigate the properties of impregnated fibres. Tannin was extracted from the bark of A. mangium using hot water. Tannin-bio-NIPU resin was created using dimethyl carbonate and hexamine. Based on the findings, it is possible to conclude that tannin extract from the bark of Acacia mangium can be used effectively as a renewable alternative to toxic polyols in the development of tannin-Bio-NIPU resins. FTIR spectroscopy was used to confirm the urethane bond formed on the tannin-Bio-NIPU resins. Thermal and mechanical analysis were used to investigate the properties of tannin-Bio-NIPU resins and ramie fibres before and after impregnation. This study shows that the impregnation time of ramie fiber using tannin-Bio-NIPU resins is 30 minutes. The reaction between tannin-Bio-NIPU resins with ramie fiber forms the C=O urethane group as confirmed by FTIR Spectroscopy. The characterization results show that tannin-Bio-NIPU resins has ability to modify ramie fiber via impregnation in order to increase its mechanical properties, thus enhancing its potential for wider industrial application as a functional material.

Preparation and characterization of non-isocyanate polyurethane resins derived from tannin of <italic>Acacia mangium</italic> bark for the modification of ramie fibers

IPB University, Faculty of Forestry and Environment

Research Collaboration Center for Biomass and Biorefinery Between BRIN and Universitas Padjadjaran

Universiti Teknologi MARA (UiTM) Cawangan Pahang Kampus Jengka

Central European Forestry Journal

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

Preparation and characterization of non-isocyanate polyurethane resins derived from tannin of  bark for the modification of ramie fibers

The purpose of this research was to create bio-based non-isocyanate polyurethane (Bio-NIPU) resins derived from the tannin of Acacia mangium Willd. bark for...

Preparation and characterization of non-isocyanate polyurethane resins derived from tannin of Acacia mangium bark for the modification of ramie fibers

Published Online: May 18, 2023

Page range: 77 - 88

DOI: https://doi.org/10.2478/forj-2023-0006

Keywords
bark, bio-based resins, non-isocyanate, polyurethane resins, ramie fibers, tannin

© 2023 Manggar Arum Aristri et al., published by Sciendo

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

Preparation and characterization of non-isocyanate polyurethane resins derived from tannin of Acacia mangium bark for the modification of ramie fibers

Published Online: May 18, 2023

Page range: 77 - 88

DOI: https://doi.org/10.2478/forj-2023-0006

Keywordsbark, bio-based resins, non-isocyanate, polyurethane resins, ramie fibers, tannin

© 2023 Manggar Arum Aristri et al., published by Sciendo

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

Keywords
bark, bio-based resins, non-isocyanate, polyurethane resins, ramie fibers, tannin