Particleboards with Recycled Material from Hemp-Based Panels

Area of Science:

• Materials Science
• Sustainable Engineering
• Green Chemistry

Background:

• Growing demand for sustainable materials in construction and furniture industries.
• Need for eco-friendly alternatives to traditional particleboard production.
• Utilizing recycled lignocellulosic biomass for value-added products.

Purpose of the Study:

• To develop and characterize lightweight particleboards from recycled hemp shives and wood chips.
• To evaluate a novel phenol-formaldehyde resin modified with soybean flour (PFS) as a binder.
• To assess the mechanical, physical, and thermal properties of the developed particleboards.

Main Methods:

• Preparation of particleboards using a mixture of virgin wood chips and mechanically recycled hemp shives.
• Synthesis and characterization of phenol-formaldehyde resin with 25% soybean flour substitution (PFS binder).
• Fourier Transform Infrared (FTIR) spectroscopy for structural analysis and adhesion confirmation.
• Thermogravimetric Analysis (TGA) for evaluating thermal properties.
• Mechanical and physical property testing according to European standards.

Main Results:

• Successful production of lightweight particleboards from recycled hemp shive-based materials.
• FTIR analysis confirmed good adhesion between the lignocellulosic materials and the PFS binder.
• TGA indicated enhanced thermal stability in particleboards made from recycled biomass compared to virgin biomass.
• Mechanical and physical properties met European standards for particleboard applications.

Conclusions:

• Lightweight particleboards can be successfully manufactured using recycled hemp shives and wood chips.
• The soybean flour-modified phenol-formaldehyde resin (PFS) is a viable binder for sustainable particleboard production.
• These recycled particleboards offer a promising sustainable alternative for the construction and furniture industries.