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Wood Products01:21

Wood Products

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Wood products encompass a broad range of materials crafted from wood strands, veneers, lumber, and even waste wood-like shreds, designed for both structural and nonstructural purposes. Various specialized wood products have been developed to enhance strength, durability, and versatility in building applications.
Glue-laminated wood, often referred to as glulam, combines multiple smaller pieces of dimensional lumber using adhesives to form a single, larger piece. Cross-laminated timber consists...
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  11. Ultraviolet (uv) Assisted Fabrication And Characterization Of Lignin Containing Cellulose Nanofibrils (lcnfs) From Wood Residues

Ultraviolet (UV) assisted fabrication and characterization of lignin containing cellulose nanofibrils (LCNFs) from wood residues

Afroza Akter Liza1, Shihao Wang2, Yanchen Zhu3

  • 1Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China; Jiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass Materials and College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China.

International Journal of Biological Macromolecules
|November 24, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

UV treatment and mechanical processing enhance lignin-containing nanocellulose (LCNF) properties. Optimized LCNF samples show improved stability, yield, and thermal resistance, making them suitable for industrial applications.

Area of Science:

  • Materials Science
  • Polymer Chemistry
Keywords:
High yieldLignin-containing cellulose nanofiberThermal stabilityUV illumination

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  • Biotechnology

    • Background:

    • Lignin-containing nanocellulose (LCNF) offers sustainable material potential.
    • Lignin's chromophores can affect LCNF properties and processability.
    • Optimizing LCNF through combined treatments is crucial for industrial adoption.

    Purpose of the Study:

    • To investigate the synergistic effects of UV treatment and mechanical processing on LCNF.
    • To analyze modifications in lignin chromophores and their impact on LCNF.
    • To evaluate the enhanced properties of LCNF for industrial applications.

    Main Methods:

    • Lignin chromophore modification using UV illumination.
    • Mechanical treatments including ball milling and high-intensity ultrasonication.
    • Comprehensive characterization of LCNF properties (yield, zeta potential, XRD, TGA, AFM, SEM).

    Main Results:

    • UV treatment and ultrasonication improved LCNF homogeneity and durability.
    • Optimized LCNF (S-120) exhibited enhanced stability (zeta potential -21.7 mV), high yield (74.02%), and superior thermal stability (TGA at 391 °C).
    • Preserved lignin slightly reduced crystallinity but improved overall thermal resistance.

    Conclusions:

    • Combined UV and mechanical treatments offer a viable method for LCNF property enhancement.
    • The optimized LCNF demonstrates significant improvements in stability, yield, and thermal performance.
    • This process facilitates the industrial utilization of LCNF materials.
    Wood residues