Influence of fiber modifications on PLA/fiber composites: Behavior to accelerated weathering

Iuliana Spiridon, Raluca Nicoleta Darie, Heli Kangas

Research output: Contribution to journalArticleScientificpeer-review

29 Citations (Scopus)

Abstract

Cellulose fibers obtained by organosolv process were used in preparing PLA/fiber composites. In an attempt to improve the adhesion between the fibers and the polymer matrix, the cellulose fibers were treated chemically using stearoyl chloride as well as enzymatically by laccase. The addition of the cellulose fibers to the PLA matrix had a positive effect on some of the mechanical properties of the composites, while some properties were compromised. In addition, the thermal properties were improved, while the rheological properties were decreased. Generally, the fiber modifications did not have the desired effect of improving the mechanical properties further, while for the thermal properties, there was a significant difference when chemically modified fibers were used. Accelerated weathering generally led to the deterioration of the composites properties. However, some properties were better preserved with the inclusion of modified fibers into the PLA matrix, especially with the enzymatically modified fibers.
Original languageEnglish
Pages (from-to)19-27
JournalComposites Part B: Engineering
Volume92
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Weathering
Fibers
Composite materials
Cellulose
Thermodynamic properties
Laccase
Mechanical properties
Polymer matrix
Deterioration
Adhesion

Keywords

  • polymer-matrix composites (PMCs)
  • wood
  • mechanical properties
  • rheological properties
  • cellulose fibers

Cite this

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title = "Influence of fiber modifications on PLA/fiber composites: Behavior to accelerated weathering",
abstract = "Cellulose fibers obtained by organosolv process were used in preparing PLA/fiber composites. In an attempt to improve the adhesion between the fibers and the polymer matrix, the cellulose fibers were treated chemically using stearoyl chloride as well as enzymatically by laccase. The addition of the cellulose fibers to the PLA matrix had a positive effect on some of the mechanical properties of the composites, while some properties were compromised. In addition, the thermal properties were improved, while the rheological properties were decreased. Generally, the fiber modifications did not have the desired effect of improving the mechanical properties further, while for the thermal properties, there was a significant difference when chemically modified fibers were used. Accelerated weathering generally led to the deterioration of the composites properties. However, some properties were better preserved with the inclusion of modified fibers into the PLA matrix, especially with the enzymatically modified fibers.",
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author = "Iuliana Spiridon and Darie, {Raluca Nicoleta} and Heli Kangas",
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language = "English",
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}

Influence of fiber modifications on PLA/fiber composites : Behavior to accelerated weathering. / Spiridon, Iuliana; Darie, Raluca Nicoleta; Kangas, Heli.

In: Composites Part B: Engineering, Vol. 92, 2016, p. 19-27.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Influence of fiber modifications on PLA/fiber composites

T2 - Behavior to accelerated weathering

AU - Spiridon, Iuliana

AU - Darie, Raluca Nicoleta

AU - Kangas, Heli

PY - 2016

Y1 - 2016

N2 - Cellulose fibers obtained by organosolv process were used in preparing PLA/fiber composites. In an attempt to improve the adhesion between the fibers and the polymer matrix, the cellulose fibers were treated chemically using stearoyl chloride as well as enzymatically by laccase. The addition of the cellulose fibers to the PLA matrix had a positive effect on some of the mechanical properties of the composites, while some properties were compromised. In addition, the thermal properties were improved, while the rheological properties were decreased. Generally, the fiber modifications did not have the desired effect of improving the mechanical properties further, while for the thermal properties, there was a significant difference when chemically modified fibers were used. Accelerated weathering generally led to the deterioration of the composites properties. However, some properties were better preserved with the inclusion of modified fibers into the PLA matrix, especially with the enzymatically modified fibers.

AB - Cellulose fibers obtained by organosolv process were used in preparing PLA/fiber composites. In an attempt to improve the adhesion between the fibers and the polymer matrix, the cellulose fibers were treated chemically using stearoyl chloride as well as enzymatically by laccase. The addition of the cellulose fibers to the PLA matrix had a positive effect on some of the mechanical properties of the composites, while some properties were compromised. In addition, the thermal properties were improved, while the rheological properties were decreased. Generally, the fiber modifications did not have the desired effect of improving the mechanical properties further, while for the thermal properties, there was a significant difference when chemically modified fibers were used. Accelerated weathering generally led to the deterioration of the composites properties. However, some properties were better preserved with the inclusion of modified fibers into the PLA matrix, especially with the enzymatically modified fibers.

KW - polymer-matrix composites (PMCs)

KW - wood

KW - mechanical properties

KW - rheological properties

KW - cellulose fibers

U2 - 10.1016/j.compositesb.2016.02.032

DO - 10.1016/j.compositesb.2016.02.032

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VL - 92

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JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

SN - 1359-8368

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