Effect of light-delignification on mechanical, hydrophobic, and thermal properties of high-strength molded fiber materials

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This article discusses the development of a high-strength molded fiber material using pulp fibers, which coudl be a good substitute for plastic and solid wood materials.

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10 p.

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Wang, Quanliang; Xiao, Shengling; Shi, Sheldon Q. & Cai, Liping January 17, 2018.

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This article discusses the development of a high-strength molded fiber material using pulp fibers, which coudl be a good substitute for plastic and solid wood materials.

Physical Description

10 p.

Notes

Abstract: This study developed a high-strength molded fiber material (HMFM) using pulp fibers, which could
be a good substitute for plastic and solid wood materials. The surface composition, microstructure
and thermal properties of HMFM were investigated by XPS, SEM and DSC, respectively. The SEM
observations showed that the obvious adhesive substances and agglomeration appeared among fibers,
and the inter-fiber contact area and binding tightness increased after the light-delignification. The XPS
examination showed that the oxygen-rich composition on the outer surface of HMFM were reduced,
and the outer surface coverage of lignin increased from 70.05% to 90.15% after the light-delignification.
The DSC observation showed that the thermal stability of HMFM decreased, the temperature for the
maximum rate of mass loss decreased from 370 °C to 345.6 °C, and the enthalpy value required for
decomposition was reduced from 110.8 J/g to 68.0 J/g after the light-delignification. The mechanical
and hydrophobic properties of HMFM were obviously improved after the light-delignification. When the
content of lignin decreased from 24.9% to 11.45%, the density of HMFM increased by 6.0%, the tensile
strength increased by 22.0%, the bending strength increased by 23.9%, and the water contact angle
increased from 64.3°–72.7° to 80.8°–84.3°.

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  • Scientific Reports, 2018. London, UK: Nature Publishing Group

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  • Publication Title: Scientific Reports
  • Volume: 8
  • Pages: 1-10
  • Peer Reviewed: Yes

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UNT Scholarly Works

Materials from the UNT community's research, creative, and scholarly activities and UNT's Open Access Repository. Access to some items in this collection may be restricted.

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  • July 20, 2017

Accepted Date

  • January 5, 2018

Creation Date

  • January 17, 2018

Added to The UNT Digital Library

  • Feb. 1, 2018, 6:37 p.m.

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Wang, Quanliang; Xiao, Shengling; Shi, Sheldon Q. & Cai, Liping. Effect of light-delignification on mechanical, hydrophobic, and thermal properties of high-strength molded fiber materials, article, January 17, 2018; London, United Kingdom. (digital.library.unt.edu/ark:/67531/metadc1065426/: accessed July 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Engineering.