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. 2022 May 4;15(9):3299.
doi: 10.3390/ma15093299.

Physical-Mechanical Properties of Peat Moss (Sphagnum) Insulation Panels with Bio-Based Adhesives

Marco Claudius Morandini  1   2   3 , Günther Kain  1   4 , Jonas Eckardt  1   2 , Alexander Petutschnigg  1   2 , Jan Tippner  3
Affiliations

Physical-Mechanical Properties of Peat Moss (Sphagnum) Insulation Panels with Bio-Based Adhesives

Marco Claudius Morandini et al. Materials (Basel). .

Abstract

Rising energy and raw material prices, dwindling resources, increased recycling, and the need for sustainable management have led to growth in the smart materials sector. In recent years, the importance and diversity of bio-based adhesives for industrial applications has grown steadily. This article focuses on the production and characterization of insulation panels consisting of peat moss and two bio-based adhesives. The panels were pressed with tannin and animal-based resins and compared to panels bonded with urea formaldehyde. The physical-mechanical properties, namely, thermal conductivity (TC), water vapor diffusion resistance, modulus of rupture (MOR), modulus of elasticity (MOE), internal bond (IB), compression resistance (CR), water absorption (WA) and thickness swelling (TS) were measured and analyzed. The results show that the insulation effectiveness and mechanical stability of moss panels bound with tannin and animal glue are comparable to standard adhesives used in the composite industry.

Keywords: animal glue; bio-based adhesives; bio-based materials; insulator; peat moss; tannin.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
SEM image of dry peat moss at a resolution of 2 and 200 microns.
Figure 2
Figure 2
Left Peat moss panel bound with tannin-based adhesive, density 150 kg/m3; on the right, an SEM image of the peat moss at a scale of 20 µm.
Figure 3
Figure 3
Embedded specimen (dry cup/wet cup).
Figure 4
Figure 4
MOR of the investigated panels.
Figure 5
Figure 5
MOE of the investigated panels.
Figure 6
Figure 6
IB of the investigated panels (5 samples per category).
Figure 7
Figure 7
Compression resistance of the investigated panels.
Figure 8
Figure 8
Water uptake of the investigated panels (5 samples per category).
Figure 9
Figure 9
Thickness swell of the investigated panels (5 samples per category).
Figure 10
Figure 10
Thermal conductivity dependent on density.
Figure 11
Figure 11
Vapor diffusion resistance of peat moss panels bounded with bio-based adhesives.
See this image and copyright information in PMC

References

    1. May N., Guenther E., Haller P. Environmental Indicators for the Evaluation of Wood Products in Consideration of Site-Dependent Aspects: A Review and Integrated Approach. Sustainability. 2017;9:1897. doi: 10.3390/su9101897. - DOI
    1. Eisenmenger N., Warr B., Magerl A. Trends in Austrian Resource Efficiency: An Exergy and Useful Work Analysis in Comparison to Material Use, CO2 Emissions, and Land Use. J. Ind. Ecol. 2017;21:1250–1261. doi: 10.1111/jiec.12474. - DOI - PMC - PubMed
    1. Mohanty A.K., Misra M., Drzal L.T. Sustainable Bio-Composites from Renewable Resources: Opportunities and Challenges in the Green Materials World. J. Polym. Environ. 2002;10:19–26. doi: 10.1023/A:1021013921916. - DOI
    1. Oertel D. Industrielle Stoffliche Nutzung Nachwachsender Rohstoffe. Sachstandsbericht zum Monitoring »Nachwachsende Rohstoffe«. 2007. [(accessed on 16 August 2021)]. Available online: https://www.infothek-biomasse.ch/images/2007_TAB_Bioraffinerien.pdf.
    1. Dey P., Ray S. An Overview of the Recent Trends in Manufacturing of Green Composites – Considerations and Challenges. Mater. Today Proc. 2018;5:19783–19789. doi: 10.1016/j.matpr.2018.06.341. - DOI

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