Effects of Surfactants on the Preparation of Nanocellulose-PLA Composites

Kirsi Immonen (Corresponding Author), Panu Lahtinen, Jaakko Pere

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

Thermoplastic composite materials containing wood fibers are gaining increasing interest in the manufacturing industry. One approach is to use nano- or micro-size cellulosic fibrils as additives and to improve the mechanical properties obtainable with only small fibril loadings by exploiting the high aspect ratio and surface area of nanocellulose. In this study, we used four different wood cellulose-based materials in a thermoplastic polylactide (PLA) matrix: cellulose nanofibrils produced from softwood kraft pulp (CNF) and dissolving pulp (CNFSD), enzymatically prepared high-consistency nanocellulose (HefCel) and microcellulose (MC) together with long alkyl chain dispersion-improving agents. We observed increased impact strength with HefCel and MC addition of 5% and increased tensile strength with CNF addition of 3%. The addition of a reactive dispersion agent, epoxy-modified linseed oil, was found to be favorable in combination with HefCel and MC.
Original languageEnglish
Article number91
Number of pages13
JournalBioengineering
Volume4
Issue number4
DOIs
Publication statusPublished - 2017
MoE publication typeNot Eligible

Fingerprint

thermoplastics
composite materials
surfactants
cellulose
dissolving pulp
nanofibers
kraft pulp
wood fibers
linseed oil
softwood
tensile strength
strength (mechanics)
epoxides
mechanical properties
surface area
manufacturing
industry

Keywords

  • PLA
  • composites
  • nanocellulose
  • wood fiber composites
  • wood fibers
  • wood polymer composites

Cite this

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title = "Effects of Surfactants on the Preparation of Nanocellulose-PLA Composites",
abstract = "Thermoplastic composite materials containing wood fibers are gaining increasing interest in the manufacturing industry. One approach is to use nano- or micro-size cellulosic fibrils as additives and to improve the mechanical properties obtainable with only small fibril loadings by exploiting the high aspect ratio and surface area of nanocellulose. In this study, we used four different wood cellulose-based materials in a thermoplastic polylactide (PLA) matrix: cellulose nanofibrils produced from softwood kraft pulp (CNF) and dissolving pulp (CNFSD), enzymatically prepared high-consistency nanocellulose (HefCel) and microcellulose (MC) together with long alkyl chain dispersion-improving agents. We observed increased impact strength with HefCel and MC addition of 5{\%} and increased tensile strength with CNF addition of 3{\%}. The addition of a reactive dispersion agent, epoxy-modified linseed oil, was found to be favorable in combination with HefCel and MC.",
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Effects of Surfactants on the Preparation of Nanocellulose-PLA Composites. / Immonen, Kirsi (Corresponding Author); Lahtinen, Panu; Pere, Jaakko.

In: Bioengineering, Vol. 4, No. 4, 91, 2017.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Effects of Surfactants on the Preparation of Nanocellulose-PLA Composites

AU - Immonen, Kirsi

AU - Lahtinen, Panu

AU - Pere, Jaakko

PY - 2017

Y1 - 2017

N2 - Thermoplastic composite materials containing wood fibers are gaining increasing interest in the manufacturing industry. One approach is to use nano- or micro-size cellulosic fibrils as additives and to improve the mechanical properties obtainable with only small fibril loadings by exploiting the high aspect ratio and surface area of nanocellulose. In this study, we used four different wood cellulose-based materials in a thermoplastic polylactide (PLA) matrix: cellulose nanofibrils produced from softwood kraft pulp (CNF) and dissolving pulp (CNFSD), enzymatically prepared high-consistency nanocellulose (HefCel) and microcellulose (MC) together with long alkyl chain dispersion-improving agents. We observed increased impact strength with HefCel and MC addition of 5% and increased tensile strength with CNF addition of 3%. The addition of a reactive dispersion agent, epoxy-modified linseed oil, was found to be favorable in combination with HefCel and MC.

AB - Thermoplastic composite materials containing wood fibers are gaining increasing interest in the manufacturing industry. One approach is to use nano- or micro-size cellulosic fibrils as additives and to improve the mechanical properties obtainable with only small fibril loadings by exploiting the high aspect ratio and surface area of nanocellulose. In this study, we used four different wood cellulose-based materials in a thermoplastic polylactide (PLA) matrix: cellulose nanofibrils produced from softwood kraft pulp (CNF) and dissolving pulp (CNFSD), enzymatically prepared high-consistency nanocellulose (HefCel) and microcellulose (MC) together with long alkyl chain dispersion-improving agents. We observed increased impact strength with HefCel and MC addition of 5% and increased tensile strength with CNF addition of 3%. The addition of a reactive dispersion agent, epoxy-modified linseed oil, was found to be favorable in combination with HefCel and MC.

KW - PLA

KW - composites

KW - nanocellulose

KW - wood fiber composites

KW - wood fibers

KW - wood polymer composites

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DO - 10.3390/bioengineering4040091

M3 - Article

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JO - Bioengineering

JF - Bioengineering

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