The influence of mechanical pulping treatment on the physical properties of wood fibre plastic composites

Alan Dickson; Armin Thumm; Karl Murton; David Sandquist

doi:10.15376/biores.15.3.5532-5545

The influence of mechanical pulping treatment on the physical properties of wood fibre plastic composites

Alan Dickson (Corresponding Author), Armin Thumm, Karl Murton, David Sandquist

BA5402 Biopolymer and composite solutions

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Abstract

Medium density fibreboard (MDF) fibres produced by a mechanical pulping process have shown potential for reinforcement in natural fibre composites (NFCs). In this work, the effect of process options, available in a pilot-scale fibre processing facility, on NFC properties were investigated. These were: a) refining energy; b) pre-treatment by sulphonation (i.e. chemi-thermo-mechanical pulping (CTMP) and c) whether the extractives stream (i.e. the plug screw pressate) was discarded or included with the fibre. There were improvements in composite performance with refining energy, although these were not strong or consistent across composite properties. The CTMP fibres gave a substantial improvement over conventional MDF fibres in flexural. tensile, and impact properties, which may be due to improved fibre-matrix interfacial properties because of better mechanical interlocking and the removal of extractives.

Original language	English
Pages (from-to)	5532-5545
Number of pages	14
Journal	BioResources
Volume	15
Issue number	3
DOIs	https://doi.org/10.15376/biores.15.3.5532-5545
Publication status	Published - 2020
MoE publication type	A1 Journal article-refereed

Keywords

Composite properties
Fibre modification
Mechanical pulp refining
Pilot-scale
SEM
Wood fibre plastic composites

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10.15376/biores.15.3.5532-5545

biores.15.3.5532-5545Final published version, 643 KB

https://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_15_3_5532_Dickson_Mechanical_Pulping_Treatment

Cite this

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title = "The influence of mechanical pulping treatment on the physical properties of wood fibre plastic composites",

abstract = "Medium density fibreboard (MDF) fibres produced by a mechanical pulping process have shown potential for reinforcement in natural fibre composites (NFCs). In this work, the effect of process options, available in a pilot-scale fibre processing facility, on NFC properties were investigated. These were: a) refining energy; b) pre-treatment by sulphonation (i.e. chemi-thermo-mechanical pulping (CTMP) and c) whether the extractives stream (i.e. the plug screw pressate) was discarded or included with the fibre. There were improvements in composite performance with refining energy, although these were not strong or consistent across composite properties. The CTMP fibres gave a substantial improvement over conventional MDF fibres in flexural. tensile, and impact properties, which may be due to improved fibre-matrix interfacial properties because of better mechanical interlocking and the removal of extractives.",

keywords = "Composite properties, Fibre modification, Mechanical pulp refining, Pilot-scale, SEM, Wood fibre plastic composites",

author = "Alan Dickson and Armin Thumm and Karl Murton and David Sandquist",

note = "Funding Information: The authors thank Ross Anderson, Garth Weinberg and Gavin Durbin for technical assistance. This work was supported by the Strategic Science Investment Fund provided by the New Zealand Ministry of Business. Innovation & Enterprise (MBIE). Funding Information: The authors thank Ross Anderson, Garth Weinberg and Gavin Durbin for technical assistance. This work was supported by the Strategic Science Investment Fund provided by the New Zealand Ministry of Business, Innovation & Enterprise (MBIE). Publisher Copyright: {\textcopyright} 2020, North Carolina State University.",

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AU - Murton, Karl

AU - Sandquist, David

N1 - Funding Information: The authors thank Ross Anderson, Garth Weinberg and Gavin Durbin for technical assistance. This work was supported by the Strategic Science Investment Fund provided by the New Zealand Ministry of Business. Innovation & Enterprise (MBIE). Funding Information: The authors thank Ross Anderson, Garth Weinberg and Gavin Durbin for technical assistance. This work was supported by the Strategic Science Investment Fund provided by the New Zealand Ministry of Business, Innovation & Enterprise (MBIE). Publisher Copyright: © 2020, North Carolina State University.

PY - 2020

Y1 - 2020

N2 - Medium density fibreboard (MDF) fibres produced by a mechanical pulping process have shown potential for reinforcement in natural fibre composites (NFCs). In this work, the effect of process options, available in a pilot-scale fibre processing facility, on NFC properties were investigated. These were: a) refining energy; b) pre-treatment by sulphonation (i.e. chemi-thermo-mechanical pulping (CTMP) and c) whether the extractives stream (i.e. the plug screw pressate) was discarded or included with the fibre. There were improvements in composite performance with refining energy, although these were not strong or consistent across composite properties. The CTMP fibres gave a substantial improvement over conventional MDF fibres in flexural. tensile, and impact properties, which may be due to improved fibre-matrix interfacial properties because of better mechanical interlocking and the removal of extractives.

AB - Medium density fibreboard (MDF) fibres produced by a mechanical pulping process have shown potential for reinforcement in natural fibre composites (NFCs). In this work, the effect of process options, available in a pilot-scale fibre processing facility, on NFC properties were investigated. These were: a) refining energy; b) pre-treatment by sulphonation (i.e. chemi-thermo-mechanical pulping (CTMP) and c) whether the extractives stream (i.e. the plug screw pressate) was discarded or included with the fibre. There were improvements in composite performance with refining energy, although these were not strong or consistent across composite properties. The CTMP fibres gave a substantial improvement over conventional MDF fibres in flexural. tensile, and impact properties, which may be due to improved fibre-matrix interfacial properties because of better mechanical interlocking and the removal of extractives.

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The influence of mechanical pulping treatment on the physical properties of wood fibre plastic composites

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