Effects of physical treatment of wood fibres on fibre morphology and biocomposite properties

Heidi Peltola (Corresponding Author), Elina Laatikainen, Petri Jetsu

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)

Abstract

In the study, the effect of refining and fractionation of wood fibres on fibre morphology and biocomposite properties was determined. Kraft pine pulp and thermomechanical pulp were selected for the fibre treatments. Effects of physical treatment on fibre morphology were analysed with a fibre analyser and microscopy techniques. For the composites, polylactic acid was used as a polymer matrix. Composites were produced by melt processing to a fibre content of 30 wt‐%, and the mechanical properties of the injection moulded biocomposites were investigated. In general, thermomechanical pulp fibres improved the mechanical properties of polylactic acid more than pine pulp fibres did. Two different fibre fractions with distinct fibre properties were obtained by fractionation, and the use of a long fibre fraction provided improved mechanical properties for composites. The refining of pine pulp led to clear fibrillation of the fibre surface, but it had a negative effect on the mechanical properties of biocomposites.
Original languageEnglish
Pages (from-to)86-92
Number of pages14
JournalPlastics, Rubber and Composites
Volume40
Issue number2
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Fingerprint

Wood
Fibers
Thermomechanical pulp
Mechanical properties
Fractionation
Refining
Pulp
Composite materials
Acids
Kraft pulp
Polymer matrix
Microscopic examination
Processing

Keywords

  • WPC
  • biocomposites
  • wood fibres
  • refining
  • fractionation

Cite this

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abstract = "In the study, the effect of refining and fractionation of wood fibres on fibre morphology and biocomposite properties was determined. Kraft pine pulp and thermomechanical pulp were selected for the fibre treatments. Effects of physical treatment on fibre morphology were analysed with a fibre analyser and microscopy techniques. For the composites, polylactic acid was used as a polymer matrix. Composites were produced by melt processing to a fibre content of 30 wt‐{\%}, and the mechanical properties of the injection moulded biocomposites were investigated. In general, thermomechanical pulp fibres improved the mechanical properties of polylactic acid more than pine pulp fibres did. Two different fibre fractions with distinct fibre properties were obtained by fractionation, and the use of a long fibre fraction provided improved mechanical properties for composites. The refining of pine pulp led to clear fibrillation of the fibre surface, but it had a negative effect on the mechanical properties of biocomposites.",
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Effects of physical treatment of wood fibres on fibre morphology and biocomposite properties. / Peltola, Heidi (Corresponding Author); Laatikainen, Elina; Jetsu, Petri.

In: Plastics, Rubber and Composites, Vol. 40, No. 2, 2011, p. 86-92.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Effects of physical treatment of wood fibres on fibre morphology and biocomposite properties

AU - Peltola, Heidi

AU - Laatikainen, Elina

AU - Jetsu, Petri

PY - 2011

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AB - In the study, the effect of refining and fractionation of wood fibres on fibre morphology and biocomposite properties was determined. Kraft pine pulp and thermomechanical pulp were selected for the fibre treatments. Effects of physical treatment on fibre morphology were analysed with a fibre analyser and microscopy techniques. For the composites, polylactic acid was used as a polymer matrix. Composites were produced by melt processing to a fibre content of 30 wt‐%, and the mechanical properties of the injection moulded biocomposites were investigated. In general, thermomechanical pulp fibres improved the mechanical properties of polylactic acid more than pine pulp fibres did. Two different fibre fractions with distinct fibre properties were obtained by fractionation, and the use of a long fibre fraction provided improved mechanical properties for composites. The refining of pine pulp led to clear fibrillation of the fibre surface, but it had a negative effect on the mechanical properties of biocomposites.

KW - WPC

KW - biocomposites

KW - wood fibres

KW - refining

KW - fractionation

U2 - 10.1179/174328911X12988622801016

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