Enhancement of the Mechanical Properties of a Polylactic Acid/Flax Fiber Biocomposite by WPU, WPU/Starch, and TPS Polyurethanes Using Coupling Additives

N. Miskolczi, V. Sedlarik, P. Kucharczyk, E. Riegel

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This work is addressed to the synthesis of bio-based polymers and investigation of their application in a flax-fiber-reinforced polylactic acid. Polyurethane polymers were synthesized from polyphenyl-methane-diisocyanate, poly (ethylene oxide) glycol, and ricinoleic acid, and their structure was examined by the Fourier transform infrared spectroscopy, thermogravimetric analysis, and differential scanning calorimetry. It was established that the introduction of flax fibers and different compatibilizers into the polymers improved their mechanical properties. A vinyl-trimetoxy-silane and polyalkenyl-polymaleic-anhydride derivative with a high acid number produced the best effect on the properties, but samples without additives had the highest water absorption capacity. SEM micrographs showed a good correlation between the morphology of fracture structure of the composites and the mechanical properties of flax fibers.

Original languageEnglish
Pages (from-to)791-800
Number of pages10
JournalMechanics of Composite Materials
Volume53
Issue number6
DOIs
Publication statusPublished - Jan 1 2018

Fingerprint

Flax
Polyurethanes
Starch
starches
Mechanical Properties
Polymers
Enhancement
Fiber
mechanical properties
Mechanical properties
acids
fibers
Acids
Fibers
augmentation
polymers
Silanes
diisocyanates
Glycols
Infrared Spectroscopy

Keywords

  • biodegradation
  • castor oil
  • coupling
  • starch
  • waterborne polyurethane

ASJC Scopus subject areas

  • Ceramics and Composites
  • Biomaterials
  • Mathematics(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Polymers and Plastics

Cite this

Enhancement of the Mechanical Properties of a Polylactic Acid/Flax Fiber Biocomposite by WPU, WPU/Starch, and TPS Polyurethanes Using Coupling Additives. / Miskolczi, N.; Sedlarik, V.; Kucharczyk, P.; Riegel, E.

In: Mechanics of Composite Materials, Vol. 53, No. 6, 01.01.2018, p. 791-800.

Research output: Contribution to journalArticle

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