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

Heidi Peltola; Elina Pääkkönen; Petri Jetsu; Sabine Heinemann

doi:10.1016/j.compositesa.2014.02.002

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

Heidi Peltola^*, Elina Pääkkönen, Petri Jetsu, Sabine Heinemann

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

141 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 language	English
Pages (from-to)	13-22
Journal	Composites Part A: Applied Science and Manufacturing
Volume	61
DOIs	https://doi.org/10.1016/j.compositesa.2014.02.002
Publication status	Published - 2014
MoE publication type	A1 Journal article-refereed

Keywords

Wood
fibres
thermoplastic resin
mechanical properties

Access to Document

10.1016/j.compositesa.2014.02.002

BioStruct: Complex Structural and Multifunctional Parts from enhanced Wood-Based Composites – eWPC
Peltola, H. (Manager)
1/09/08 → 31/08/12
Project: EU project

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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author = "Heidi Peltola and Elina P{\"a}{\"a}kk{\"o}nen and Petri Jetsu and Sabine Heinemann",

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doi = "10.1016/j.compositesa.2014.02.002",

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journal = "Composites Part A: Applied Science and Manufacturing",

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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

U2 - 10.1016/j.compositesa.2014.02.002

DO - 10.1016/j.compositesa.2014.02.002

M3 - Article

SN - 1359-835X

VL - 61

SP - 13

EP - 22

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

ER -

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

Abstract

Keywords

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Projects

BioStruct: Complex Structural and Multifunctional Parts from enhanced Wood-Based Composites – eWPC

Cite this