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Mechanical property enhancement of self-bonded natural fiber material via controlling cell wall plasticity and structure

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This article explores self-bonded natural fiber material (SNFM) as a promising alternative for plastic and wood owing to its abundant raw material resources and low environmental impact. In this study, a high-performance SNFM was developed by the comprehensive treatments for the plasticity and structure of fiber cell walls. The self-bonded mechanism for natural fiber materials was also discussed. The SNFM products showed excellent mechanical performance, which was superior to that of natural wood and plastic.

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8 p.

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Wang, Quanliang; Xiao, Shengling; Shi, Sheldon & Cai, Liping March 26, 2019.

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This article is part of the collection entitled: UNT Scholarly Works and was provided by the UNT College of Engineering to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 147 times. More information about this article can be viewed below.

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This article explores self-bonded natural fiber material (SNFM) as a promising alternative for plastic and wood owing to its abundant raw material resources and low environmental impact. In this study, a high-performance SNFM was developed by the comprehensive treatments for the plasticity and structure of fiber cell walls. The self-bonded mechanism for natural fiber materials was also discussed. The SNFM products showed excellent mechanical performance, which was superior to that of natural wood and plastic.

Physical Description

8 p.

Notes

Abstract: Self-bonded natural fiber material (SNFM) is a promising alternative for plastic and wood owing to its abundant raw material resources and low environmental impact. In this study, a high-performance SNFM was developed by the comprehensive treatments for the plasticity and structure of fiber cell walls. The cell wall structure was treated by a progressive chemical etching process for selectively removing surface lignin, internal lignin and hemicelluloses, respectively.The cell wall plasticity was tuned by controlling the fiber moisture content during compression molding process. The results showed that the increase in fiber plasticity improved the tensile strength from 38.0 to 83.5MPa and the flexural strength from 31.2 to 73.3 MPa. The selective removal of surface lignin increased the flexural strength from 101.3 to 122.1 MPa. The functional relationships among mechanical strength, lignin content, hemicellulose content and moisture content were established. The self-bonded mechanism for natural fiber materials was also discussed. The SNFM products showed excellent mechanical performance (tensile strength: 21.5–83.5 MPa; flexural strength: 31.2–127.3 MPa), which was superior to that of natural wood (46.5–55.6 MPa; 70.7–92.4 MPa) and plastic (15.9–51.0 MPa; 21.7–73.0MPa) (e.g., HDPE, PP, PVC, and ABS).Self-bonded natural fibermaterial (SNFM) is a promising alternative for plastic and wood owing to its abundant raw material resources and low environmental impact. In this study, a high-performance SNFM was developed by the comprehensive treatments for the plasticity and structure of fiber cell walls. The cell wall structure was treated by a progressive chemical etching process for selectively removing surface lignin, internal lignin and hemicelluloses, respectively. The cell wall plasticity was tuned by controlling the fiber moisture content during compression molding process. The results showed that the increase in fiber plasticity improved the tensile strength from 38.0 to 83.5MPa and the flexural strength from 31.2 to 73.3 MPa. The selective removal of surface lignin increased the flexural strength from 101.3 to 122.1 MPa. The functional relationships amon mechanical strength, lignin content, hemicellulose content and moisture content were established. The self-bonded mechanism for natural fiber materials was also discussed. The SNFM products showed excellent mechanical performance (tensile strength: 21.5–83.5 MPa; flexural strength: 31.2–127.3 MPa), which was superior to that of natural wood (46.5–55.6 MPa; 70.7–92.4 MPa) and plastic (15.9–51.0 MPa; 21.7–73.0MPa) (e.g., HDPE, PP, PVC, and ABS).Self-bonded natural fibermaterial (SNFM) is a promising alternative for plastic and wood owing to its abundant raw material resources and low environmental impact. In this study, a high-performance SNFM was developed by the comprehensive treatments for the plasticity and structure of fiber cell walls. The cell wall structure was treated by a progressive chemical etching process for selectively removing surface lignin, internal lignin and hemicelluloses, respectively. The cell wall plasticity was tuned by controlling the fiber moisture content during compression molding process. The results showed that the increase in fiber plasticity improved the tensile strength from 38.0 to 83.5MPa and the flexural strength from 31.2 to 73.3 MPa. The selective removal of surface lignin increased the flexural strength from 101.3 to 122.1 MPa. The functional relationships among mechanical strength, lignin content, hemicellulose content and moisture content were established. The self-bonded mechanism for natural fiber materials was
also discussed. The SNFM products showed excellent mechanical performance (tensile strength: 21.5–83.5 MPa; flexural strength: 31.2–127.3 MPa), which was superior to that of natural wood (46.5–55.6 MPa; 70.7–92.4 MPa) and plastic (15.9–51.0 MPa; 21.7–73.0MPa) (e.g., HDPE, PP, PVC, and ABS).Self-bonded natural fiber material (SNFM) is a promising alternative for plastic and wood owing to its abundant raw material resources and low environmental impact. In this study, a high-performance SNFM was developed by the
comprehensive treatments for the plasticity and structure of fiber cell walls. The cell wall structure was treated by a progressive chemical etching process for selectively removing surface lignin, internal lignin and hemicelluloses, respectively. The cell wall plasticity was tuned by controlling the fiber moisture content during compression molding process. The results showed that the increase in fiber plasticity improved the tensile strength from 38.0 to 83.5MPa
and the flexural strength from 31.2 to 73.3 MPa. The selective removal of surface lignin increased the flexural strength from 101.3 to 122.1 MPa. The functional relationships among mechanical strength, lignin content, hemicellulose content and moisture content were established. The self-bonded mechanism for natural fiber materials was also discussed. The SNFM products showed excellent mechanical performance (tensile strength: 21.5–83.5 MPa;
flexural strength: 31.2–127.3 MPa), which was superior to that of natural wood (46.5–55.6 MPa; 70.7–92.4 MPa) and plastic (15.9–51.0 MPa; 21.7–73.0MPa) (e.g., HDPE, PP, PVC, and ABS).

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  • Journal: Materials & Design, 172, Elsevier Science Ltd. March 26, 2019, pp. 1- 8

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  • Publication Title: Materials and Design
  • Volume: 172
  • Peer Reviewed: Yes

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  • March 26, 2019

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  • March 3, 2020, 10:24 p.m.

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  • Dec. 12, 2023, 11:37 a.m.

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Wang, Quanliang; Xiao, Shengling; Shi, Sheldon & Cai, Liping. Mechanical property enhancement of self-bonded natural fiber material via controlling cell wall plasticity and structure, article, March 26, 2019; Amsterdam, Netherlands. (https://digital.library.unt.edu/ark:/67531/metadc1616557/: accessed November 13, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT College of Engineering.

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