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Journal of Polymers and the Environment

, Volume 26, Issue 5, pp 2007–2017 | Cite as

Influence of Paper Content and Matrix Selection on the Porosity, Crystallinity and Water Uptake of Thermoplastic Paper Composites

  • Martina Prambauer
  • Christian Paulik
  • Christoph Burgstaller
Original Paper
  • 48 Downloads

Abstract

Pulp and paper fibers have favorable reinforcement properties, such as constant fiber quality, while being widely available at low cost. However, they also have severe drawbacks related to water uptake and material degradation. In this work, paper was used for sustainable reinforcement in thermoplastic composite laminates, which were characterized by thermal analysis and moisture uptake tests. The porosity of the composite samples with varying paper content and matrix material was determined by thermogravimetric analysis and related to their water uptake. Polypropylene and polyamide 12 matrix composites had the lowest porosities, between 2 and 6 vol%, and thus comparatively low water uptake. Additionally, the influence of moisture uptake on the mechanical properties of the composites was investigated by tensile testing, which resulted in a significant decrease in modulus and strength in the wet state. After drying, however, 70–90% of the original tensile properties were regained. Additionally, a nucleating effect of the paper surface could be observed, which led to a linear increase in matrix crystallinity with increasing paper content.

Keywords

Paper composites Thermoplastic matrix Natural fibers Laminates Thermal properties 

Notes

Acknowledgements

The authors are grateful to the Austrian Research Promotion Agency (FFG, Austria) for financial support of the project “Structural Paper-Thermoplastic Composites” in the scheme of “Industry-oriented Dissertation”.

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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Martina Prambauer
    • 1
    • 2
  • Christian Paulik
    • 2
  • Christoph Burgstaller
    • 1
  1. 1.Transfercenter für Kunststofftechnik GmbHWelsAustria
  2. 2.Institute for Chemical Technology of Organic MaterialsJohannes Kepler University LinzLinzAustria

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