Abstract
Pulp fibre foams are a potential alternative to porous polymers; however, their poor mechanical properties limit their application to packaging materials. We utilised the sandwich composite approach to produce panels (370 mm x 300 mm x 20 mm) comprising of pulp fibre foams and kraft liner papers to improve the mechanical properties of such foams. Two types of sandwich structures are produced: foam core sandwich panels and stiffened sandwich composites. The resulting sandwich structures materials have apparent densities ranging from 80 kg/m3 to 161 kg/m3. The mechanical properties are assessed in compression, three-point bending and double lap shear loading conditions. We show that pulp fibre foam sandwich structures possess significantly higher compression and flexural moduli and strengths when compared to pure pulp fibre foams. Stiffening the pulp fibre foam core further by incorporation of kraft liner paper stiffeners results in even higher mechanical, including lap shear, properties.
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 109080 |
| Fachzeitschrift | Composites Part A: Applied Science and Manufacturing |
| Jahrgang | 198 |
| DOIs | |
| Publikationsstatus | Veröffentlicht - Nov. 2025 |
Fördermittel
We acknowledge the European Union's Horizon 2020 research and innovation program under grant agreement No 964430, for their financial support on this work. We thank Prof. Wolfgang Bauer from the Technical University of Graz for his input on pulp and paper materials selection, Dr. Stefan Veigel and Jan Michael Spreitzer from the Institute of Wood Technology and Renewable Materials at BOKU-University of Natural Resources and Life Sciences, Vienna, for the use of the Valley Beater for pulp fibre dispersion, Assoc. Prof. Stefan Spirk and Ing. Alexa Scheer for conducting the iGC measurements on our pure pulp fibre and kraft liner paper, and the Master students at the Institute of Materials Chemistry and Research of the University of Vienna for their participation in the development of the process of making the stiffened sandwich composites: Wendelin Emil Wimmer and Milorad Stokic. NBD acknowledges the BOKU / UniVie doctoral school Advanced Biorefinery, Chemistry and Materials (ABC&M). We acknowledge the European Union\u2019s Horizon 2020 research and innovation program under grant agreement No 964430, for their financial support on this work. We thank Prof. Wolfgang Bauer from the Technical University of Graz for his input on pulp and paper materials selection, Dr. Stefan Veigel and Jan Michael Spreitzer from the Institute of Wood Technology and Renewable Materials at BOKU-University of Natural Resources and Life Sciences, Vienna, for the use of the Valley Beater for pulp fibre dispersion, Assoc. Prof. Stefan Spirk and Ing. Alexa Scheer for conducting the iGC measurements on our pure pulp fibre and kraft liner paper, and the Master students at the Institute of Materials Chemistry and Research of the University of Vienna for their participation in the development of the process of making the stiffened sandwich composites: Wendelin Emil Wimmer and Milorad Stokic. NBD acknowledges the BOKU / UniVie doctoral school Advanced Biorefinery, Chemistry and Materials (ABC&M). This work has received funding from the European Union\u2019s Horizon 2020 research and innovation programme under grant agreement No 964430.
ÖFOS 2012
- 205019 Materialwissenschaften
- 104018 Polymerchemie