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This is a Experimental Study study.

September 27, 2025PolymersOpen Access

Development and Characterization of Sustainable Biocomposites from Wood Fibers, Spent Coffee Grounds, and Ammonium Lignosulfonate

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This study demonstrates how spent coffee grounds and lignin can replace traditional adhesives in biocomposites, suggesting improved sustainability.

Co-utilizing spent coffee grounds and ammonium lignosulfonate shows potential for sustainable wood fiber composites.
The biocomposites demonstrated comparable mechanical properties to conventional urea-formaldehyde bonded panels.
Hot pressing at 150 °C achieved adequate performance while eliminating formaldehyde emissions.
Higher binder contents negatively impacted strength and increased water absorption, indicating the need for optimization.

Savov et al. (2025) studied this question.

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This study demonstrates how spent coffee grounds and lignin can replace traditional adhesives in biocomposites, suggesting improved sustainability.