Hemp Shiv Cell Wall Microstructure and Pore Size Distribution

Physical characterization data for hemp shiv includes cell wall microstructure, pore size distribution, and absolute density measurements. The dataset reports an average accessible porosity of 76.67% ± 2.03%, with pore sizes classified into micropores (3-10 nm) and macropores (0.1-1 µm and 20-80 µm). It was authored by Yunhong Jiang and published in 2020.

Use Cases

• Analyze the relationship between absolute density values measured by helium pycnometry, mercury intrusion porosimetry, and Archimedes' methods to assess measurement discrepancies.
• Model pore connectivity and shape in three dimensions using computed tomography data to understand material permeability.
• Compare the identified pore size classes (micropores and macropores) against material composition to predict mechanical properties.
• Investigate the three major cell wall layers (middle lamella, primary cell wall, secondary cell wall) revealed by confocal microscopy for structural analysis.

Strengths

• Reports a specific average accessible porosity value of 76.67% ± 2.03%.
• Distinguishes pore sizes into concrete classes: micropores (3-10 nm) and macropores (0.1-1 µm and 20-80 µm).
• Compares results from multiple established measurement methods: helium pycnometry, mercury intrusion porosimetry, and Archimedes' methods.

Limitations

• Sample geometry and preparation significantly influence density measurements, as 10% of pore volume was inaccessible to some methods.
• The dataset scope is limited to the physical characterization of hemp shiv, without associated chemical or performance data.
• No row count, column structure, or sample data is provided, limiting immediate analytical utility.

Provenance

Source

Dryad, authored by Yunhong Jiang.

Collection Method

Data derived from Scanning Electron Microscopy, Confocal Microscopy, Computed Tomography, Mercury Intrusion Porosimetry, Helium Pycnometry, and Archimedes' methods.

Freshness

Last updated in 2020.