Ionic Liquid Processed Artificial Timber

The patent applies porous materials principle by constructing a hierarchical porous structure with microparticles (1-10 μm) containing nanofibers (10-100 nm) as fillers. This porous architecture transforms the dissolved timber components into a high-value artificial timber with enhanced specific area (5-50 m²/g) and improved mechanical properties, moving beyond low-value aerogel products to applications in construction and structural materials.

The patent employs composite materials principle by creating a multi-component system where microparticles and nanofibers are combined in a porous matrix. The composite structure integrates cellulose, hemicellulose, and lignin in specific ratios (cellulose: 30-70 wt%, hemicellulose: 10-40 wt%, lignin: 5-20 wt%) to achieve both solubility in ionic liquid and high mechanical strength, resolving the contradiction between dissolution capability and product value.

The patent applies extraction principle by removing harmful adhesive substances and high-temperature processing steps from the manufacturing process. Instead, it uses ionic liquid dissolution followed by controlled coagulation to form the artificial timber structure, eliminating environmental pollution and reducing energy consumption while maintaining ease of manufacture through a simplified process flow.

The patent employs parameter changes principle by transitioning from high-temperature thermo-pressing conditions to room temperature or mild temperature processing. The ionic liquid enables dissolution and shaping at low temperatures, and the subsequent coagulation process occurs under ambient conditions, dramatically reducing energy consumption and eliminating the need for adhesive chemicals.

The patent applies segmentation principle by dividing the fiber network into hierarchical levels: nanofibers (10-100 nm) segmented within microparticles (1-10 μm), which are further distributed in a porous matrix. This segmented structure creates multi-pore passages at different scales while maintaining uniform fiber distribution through the solvent replacement process, resolving the contradiction between network uniformity and structural complexity.

The patent employs dimensionality change principle by creating a three-dimensional hierarchical porous structure from the two-dimensional uniform fiber network. The solvent replacement process preserves fiber uniformity while the controlled phase separation and drying procedures generate multi-pore passages extending in three dimensions, with pore sizes ranging from nanometer to micrometer scales, adding structural dimensionality without compromising compositional uniformity.