Adhesives free bark panels: An alternative application for a waste material

Area of Science:

• Forestry
• Materials Science
• Sustainable Engineering

Background:

• Bark constitutes 10-20% of tree trunks, often treated as waste in timber processing.
• Current uses for bark include chemical extraction or as an additive in wood particle boards.
• There is a need for sustainable applications that utilize bark's natural properties.

Purpose of the Study:

• To investigate the feasibility of producing wood panels from tree bark without adhesives.
• To explore alternative applications for bark, preserving its natural state and composition.
• To determine if bark panels can exhibit species-dependent properties.

Main Methods:

• Harvesting large bark pieces using traditional peeling methods.
• Conditioning bark samples followed by hot pressing without added adhesives.
• Crosswise placement of bark pieces with the rhytidom (outer bark) sides facing each other.

Main Results:

• Successful production of bark panels from various Central European tree species.
• Demonstrated feasibility of creating panels with species-dependent properties.
• Development of a method to utilize bark as a primary material, not a waste product.

Conclusions:

• Bark can be processed into sustainable panels using its natural structure and composition.
• This approach offers a viable alternative to traditional wood processing, reducing waste.
• Further research can optimize panel properties for diverse applications.