High‐Strength, Thermally Stable, and Processable Wood Fiber/Polyamide Composites for Engineering Structural Components

Abstract Hybrid wood fiber/plastic composites offer a high‐value‐added utilization for agroforestry waste, which also providing a promising solution for reducing white pollution. However, the interface incompatibility between natural wood fibers and polymers significantly impairs the mechanical prop...

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Main Authors: Zhengtong You, Haigang Wang, Feng Zhang, Haoyuan Zhang, Chuwen Zou, Zhifang Zhou, Yonggui Wang, Zefang Xiao, Daxin Liang, Qingwen Wang, Wentao Gan, Yanjun Xie
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202408708
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author Zhengtong You
Haigang Wang
Feng Zhang
Haoyuan Zhang
Chuwen Zou
Zhifang Zhou
Yonggui Wang
Zefang Xiao
Daxin Liang
Qingwen Wang
Wentao Gan
Yanjun Xie
author_facet Zhengtong You
Haigang Wang
Feng Zhang
Haoyuan Zhang
Chuwen Zou
Zhifang Zhou
Yonggui Wang
Zefang Xiao
Daxin Liang
Qingwen Wang
Wentao Gan
Yanjun Xie
author_sort Zhengtong You
collection DOAJ
description Abstract Hybrid wood fiber/plastic composites offer a high‐value‐added utilization for agroforestry waste, which also providing a promising solution for reducing white pollution. However, the interface incompatibility between natural wood fibers and polymers significantly impairs the mechanical properties of the composites. Herein, a straightforward procedure is proposed to solve this problem, involving the removal of low‐thermal‐stability hemicellulose from wood fibers by hydrothermal pretreatment, followed by compositing with polyamide to produce hydrothermally treated wood fiber/polyamide composites (HWPACs). No chemical additives are required to improve the interface compatibility of composites, which simplifies the manufacturing process and provides environmental benefits. The effective removal of hemicellulose (78.35%) significantly increases the onset thermal degradation temperature of hydrothermally treated wood fibers (HWFs) by 27.49 °C. This prevents the generation of micro gaps during thermal processing, thereby improving the interfacial bonding strength between HWFs and polyamide. HWPACs exhibit higher mechanical strength (flexural strength 139.45 MPa) and thermal stability while maintaining a low density (1.22 g cm−3). Various lightweight, high‐strength, and multi‐shape materials can be prepared by hot pressing, injecting, and printing HWPACs, suggesting their suitability for applications in engineering structural components.
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institution Kabale University
issn 2198-3844
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publishDate 2025-01-01
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spelling doaj-art-fea7c6a7832d4aa8bdbbf459b6c6d1752025-01-09T11:44:46ZengWileyAdvanced Science2198-38442025-01-01121n/an/a10.1002/advs.202408708High‐Strength, Thermally Stable, and Processable Wood Fiber/Polyamide Composites for Engineering Structural ComponentsZhengtong You0Haigang Wang1Feng Zhang2Haoyuan Zhang3Chuwen Zou4Zhifang Zhou5Yonggui Wang6Zefang Xiao7Daxin Liang8Qingwen Wang9Wentao Gan10Yanjun Xie11Key Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaKey Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaKey Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaKey Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaKey Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaSchool of Architecture and Civil engineering Heilongjiang University of Science and Technology Harbin 150027 P. R. ChinaKey Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaKey Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaKey Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaCountry College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. ChinaKey Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaKey Laboratory of Bio‐based Material Science & Technology (Ministry of Education) Northeast Forestry University Harbin 150040 P. R. ChinaAbstract Hybrid wood fiber/plastic composites offer a high‐value‐added utilization for agroforestry waste, which also providing a promising solution for reducing white pollution. However, the interface incompatibility between natural wood fibers and polymers significantly impairs the mechanical properties of the composites. Herein, a straightforward procedure is proposed to solve this problem, involving the removal of low‐thermal‐stability hemicellulose from wood fibers by hydrothermal pretreatment, followed by compositing with polyamide to produce hydrothermally treated wood fiber/polyamide composites (HWPACs). No chemical additives are required to improve the interface compatibility of composites, which simplifies the manufacturing process and provides environmental benefits. The effective removal of hemicellulose (78.35%) significantly increases the onset thermal degradation temperature of hydrothermally treated wood fibers (HWFs) by 27.49 °C. This prevents the generation of micro gaps during thermal processing, thereby improving the interfacial bonding strength between HWFs and polyamide. HWPACs exhibit higher mechanical strength (flexural strength 139.45 MPa) and thermal stability while maintaining a low density (1.22 g cm−3). Various lightweight, high‐strength, and multi‐shape materials can be prepared by hot pressing, injecting, and printing HWPACs, suggesting their suitability for applications in engineering structural components.https://doi.org/10.1002/advs.202408708interfacial bondingmechanical strengtheningpolymer‐matrix compositesthermal stabilitywood fibers
spellingShingle Zhengtong You
Haigang Wang
Feng Zhang
Haoyuan Zhang
Chuwen Zou
Zhifang Zhou
Yonggui Wang
Zefang Xiao
Daxin Liang
Qingwen Wang
Wentao Gan
Yanjun Xie
High‐Strength, Thermally Stable, and Processable Wood Fiber/Polyamide Composites for Engineering Structural Components
Advanced Science
interfacial bonding
mechanical strengthening
polymer‐matrix composites
thermal stability
wood fibers
title High‐Strength, Thermally Stable, and Processable Wood Fiber/Polyamide Composites for Engineering Structural Components
title_full High‐Strength, Thermally Stable, and Processable Wood Fiber/Polyamide Composites for Engineering Structural Components
title_fullStr High‐Strength, Thermally Stable, and Processable Wood Fiber/Polyamide Composites for Engineering Structural Components
title_full_unstemmed High‐Strength, Thermally Stable, and Processable Wood Fiber/Polyamide Composites for Engineering Structural Components
title_short High‐Strength, Thermally Stable, and Processable Wood Fiber/Polyamide Composites for Engineering Structural Components
title_sort high strength thermally stable and processable wood fiber polyamide composites for engineering structural components
topic interfacial bonding
mechanical strengthening
polymer‐matrix composites
thermal stability
wood fibers
url https://doi.org/10.1002/advs.202408708
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