| Summary: | In this study, Abietic acid (Aba), polyvinyl chloride (PVC), and nano silver (AgNPs) were blended by mixing and dissolving them in tetrahydrofuran. Pine (<i>Pinus sylvestris</i>) sapwood was impregnated with the PVC-Aba-AgNPs under a vacuum in a small-scale impregnation container. The weight percent gain, density, water absorption, swelling properties, and decay resistance of the treated wood were measured in detail. PVC-Aba-AgNPs treatments decreased the swelling properties and water absorption of wood, and increased the anti-swelling efficiency (ASE) to approximately 12% after 8-day immersion in water. Mostly, the treated samples were found to be more resistant to decay compared to the control. Unleached and leached test samples showed the same mass loss after fungal decay tests.
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