Vol. 13, Issue 3 (2025)
Epoxy lignin-reinforced rosin wood coatings for improved strength and durability
Author(s): Uma There, Shreya Badhiye, Gayatri Thakare and Vikas Choudhary
Abstract: The current study investigates the development of high-performance, environmentally friendly wood coatings using bio-derived epoxy lignin and rosin components. Lignin extracted from banana pseudo-stem through the kraft process was chemically modified and cross-linked with epoxy resin and natural rosin to formulate a biodegradable wood coating with enhanced durability. The incorporation of lignin not only promotes eco-friendliness but also contributes to thermal stability and mechanical reinforcement due to its aromatic-rich structure. Thermogravimetric analysis (TGA) of the developed coating revealed multiple degradation stages, with significant thermal stability observed up to 400 °C, confirming strong crosslinking interactions. FTIR analysis confirmed the successful formation of ester and ether linkages, as evidenced by prominent peaks at 1737 cm?¹ and 1235 cm?¹, respectively. Compared to unmodified kraft lignin, the epoxy lignin-rosin coating exhibited increased hydrophobicity, improved adhesion, and resistance to thermal degradation, making it a suitable candidate for wood protection applications. This bio-based formulation provides a promising alternative to synthetic coatings, aligning with green chemistry principles and circular economy objectives.
Pages: 88-95 | 319 Views 51 Downloads
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How to cite this article:
Uma There, Shreya Badhiye, Gayatri Thakare, Vikas Choudhary. Epoxy lignin-reinforced rosin wood coatings for improved strength and durability. Int J Chem Stud 2025;13(3):88-95.
