Wood based PLA and PP composites: Effect of fibre type and matrix polymer on fibre morphology, dispersion and composite properties

Heidi Peltola (Corresponding Author), Elina Pääkkönen, Petri Jetsu, Sabine Heinemann

Research output: Contribution to journalArticleScientificpeer-review

64 Citations (Scopus)

Abstract

This study presents a comparison of the effect of various wood fibre types in polylactic acid and polypropylene composites produced by melt processing. The study also reveals the reinforcing effect of pelletised wood fibres compared to conventionally used wood flour or refined fibres. Composites containing 30 wt.% of chemical pulps, thermomechanical pulp and wood flour were produced by compounding and injection moulding. Fibre morphologies were analysed before and after melt processing. The dispersion of the fibres and mechanical performance of the composites were also investigated. Fibre length was reduced during melt processing steps, reduction being higher with longer fibres. Wood fibres provided clearly higher plastic reinforcement than wood flour. Comparing the wood fibre types, TMP fibres provided the highest improvement in mechanical properties in polylactic acid composites with uniform fibre dispersion. In polypropylene composites, fibre selection is not as crucial.
Original languageEnglish
Pages (from-to)13-22
Number of pages10
JournalComposites Part A: Applied Science and Manufacturing
Volume61
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

Fingerprint

Polymer matrix
Wood
Fibers
Composite materials
Polypropylenes
Processing
Thymidine Monophosphate
Thermomechanical pulp
Chemical pulp
Acids
Injection molding
Reinforcement
Plastics
Mechanical properties

Keywords

  • Wood
  • fibres
  • thermoplastic resin
  • mechanical properties

Cite this

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title = "Wood based PLA and PP composites: Effect of fibre type and matrix polymer on fibre morphology, dispersion and composite properties",
abstract = "This study presents a comparison of the effect of various wood fibre types in polylactic acid and polypropylene composites produced by melt processing. The study also reveals the reinforcing effect of pelletised wood fibres compared to conventionally used wood flour or refined fibres. Composites containing 30 wt.{\%} of chemical pulps, thermomechanical pulp and wood flour were produced by compounding and injection moulding. Fibre morphologies were analysed before and after melt processing. The dispersion of the fibres and mechanical performance of the composites were also investigated. Fibre length was reduced during melt processing steps, reduction being higher with longer fibres. Wood fibres provided clearly higher plastic reinforcement than wood flour. Comparing the wood fibre types, TMP fibres provided the highest improvement in mechanical properties in polylactic acid composites with uniform fibre dispersion. In polypropylene composites, fibre selection is not as crucial.",
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Wood based PLA and PP composites : Effect of fibre type and matrix polymer on fibre morphology, dispersion and composite properties. / Peltola, Heidi (Corresponding Author); Pääkkönen, Elina; Jetsu, Petri; Heinemann, Sabine.

In: Composites Part A: Applied Science and Manufacturing, Vol. 61, 2014, p. 13-22.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Wood based PLA and PP composites

T2 - Effect of fibre type and matrix polymer on fibre morphology, dispersion and composite properties

AU - Peltola, Heidi

AU - Pääkkönen, Elina

AU - Jetsu, Petri

AU - Heinemann, Sabine

N1 - Project code: 19254

PY - 2014

Y1 - 2014

N2 - This study presents a comparison of the effect of various wood fibre types in polylactic acid and polypropylene composites produced by melt processing. The study also reveals the reinforcing effect of pelletised wood fibres compared to conventionally used wood flour or refined fibres. Composites containing 30 wt.% of chemical pulps, thermomechanical pulp and wood flour were produced by compounding and injection moulding. Fibre morphologies were analysed before and after melt processing. The dispersion of the fibres and mechanical performance of the composites were also investigated. Fibre length was reduced during melt processing steps, reduction being higher with longer fibres. Wood fibres provided clearly higher plastic reinforcement than wood flour. Comparing the wood fibre types, TMP fibres provided the highest improvement in mechanical properties in polylactic acid composites with uniform fibre dispersion. In polypropylene composites, fibre selection is not as crucial.

AB - This study presents a comparison of the effect of various wood fibre types in polylactic acid and polypropylene composites produced by melt processing. The study also reveals the reinforcing effect of pelletised wood fibres compared to conventionally used wood flour or refined fibres. Composites containing 30 wt.% of chemical pulps, thermomechanical pulp and wood flour were produced by compounding and injection moulding. Fibre morphologies were analysed before and after melt processing. The dispersion of the fibres and mechanical performance of the composites were also investigated. Fibre length was reduced during melt processing steps, reduction being higher with longer fibres. Wood fibres provided clearly higher plastic reinforcement than wood flour. Comparing the wood fibre types, TMP fibres provided the highest improvement in mechanical properties in polylactic acid composites with uniform fibre dispersion. In polypropylene composites, fibre selection is not as crucial.

KW - Wood

KW - fibres

KW - thermoplastic resin

KW - mechanical properties

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DO - 10.1016/j.compositesa.2014.02.002

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JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

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