Mechanical, Chemical, and Physical Properties of Wood and Perennial Grass Biochars for Possible Composite Application
By Ehsan Behazin, Emmanuel O. Ogunsona, Arturo Rodriguez‐Uribe, A. Mohanty, Manjusri Misra, Anthony O. Anyia. 2015
146 citations recorded by the source corpus.
Miscanthus, switchgrass, and softwood chip biochars, produced by slow pyrolysis, were characterized to evaluate their properties in light of potential alternative and novel applications. This work investigated specific physical and chemical properties of biochars that have not been previously reported. Atomic force microscopy (AFM), moisture absorption, and electrical and thermal analysis were conducted to demonstrate the mechanical, physical, and chemical properties of biochars. In addition, elemental analysis, specific surface area, Fourier transform infrared in the attenuated total reflectance (FTIR-ATR), and X-ray diffraction were performed. The state-of-art quantitative nano-mechanical measurement yielded a modulus of elasticity of approximately 10 GPa for the wood chip biochar, while the grass-based samples exhibited a comparatively lower modulus of approximately 5 GPa. In addition, the pore blocking phenomenon by water molecules was identified as a cause for atypical behavior of the biochars’ moisture absorptions, resulting in wood chip biochar having the lowest equilibrium moisture content of 6.2 wt.%. Results from electrical and thermal conductivity measurements demonstrated relatively lower values in comparison to carbonized biomass.
Subfields: Biomedical Engineering
View Paper: https://www.semanticscholar.org/paper/99b4fb71b85136e5602edc3df01c3f1b3cae1e63
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Citations in the corpus
- Effect of Pyrolysis Temperature on Biochar Microstructural Evolution, Physicochemical Characteristics, and Its Influence on Biochar/Polypropylene Composites (2019, unknown): “ratios, corresponding to the absence or limited presence of functional groups on surface and high percentages of carbon content [23].”
- Targeted pre-treatment of hemp bast fibres for optimal performance in biocomposite materials: A review (2017, methodology): “Changes in chemical composition of natural fibres after different fibre 143 processing regimes have been commonly used to explain changes in the mechanical properties of fibres and fibre/matrix 144 polymers composites (Charlet et al. 2007; Thuault et al. 2013; Behazin et al. 2016).”