Potential of chemo- enzymatically modified CTMP in biocomposites

Anna Suurnäkki, Hannu Mikkonen, Kirsi Immonen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The effect of chemo-enzymatic hydrophobisation of spruce chemi thermo mechanical pulp, CTMP, on the properties of biocomposites was studied. CTMP surface was modified with tailor-made phenolic compounds with different alkyl chain length substituents suited to physical properties of plastic. Dispersion technology was developed and applied for dosing these water insoluble substrates. The modified fibre materials were compounded with polylactic acid (PLA) or polyhydroxybutyrate (PHB) and the properties of composites were studied. Modification with dodecyl gallate (DOGA) resulted in improved dispersion of fibres both with PLA and PHB. In addition, mechanical properties were found to be similar or better than with reference fibre containing materials, but depending on the biopolymer type and its' melt behaviour. The enhancement to mechanical properties was found to be more significant in biocomposites in which PLA was used as matrix polymer.
Original languageEnglish
Title of host publicationProceedings
Subtitle of host publication16th International Symposium on Wood, Fiber and Pulping Chemistry, 16th ISWFPC
Pages1293-1296
Volume2
Publication statusPublished - 2011
MoE publication typeA4 Article in a conference publication
Event16th International Symposium on Wood, Fiber and Pulping Chemistry, 16th ISWFPC - Tianjin, China
Duration: 8 Jun 201110 Jun 2011

Conference

Conference16th International Symposium on Wood, Fiber and Pulping Chemistry, 16th ISWFPC
Abbreviated title16th ISWFPC
CountryChina
CityTianjin
Period8/06/1110/06/11

Keywords

  • biocomposites
  • CTMP
  • biopolymers
  • chemo-enzymatic modification
  • composite properties

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  • Cite this

    Suurnäkki, A., Mikkonen, H., & Immonen, K. (2011). Potential of chemo- enzymatically modified CTMP in biocomposites. In Proceedings: 16th International Symposium on Wood, Fiber and Pulping Chemistry, 16th ISWFPC (Vol. 2, pp. 1293-1296)