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Particleboards produced with other lignocellulosic materials, beyond wood, are promising products for the furniture and building construction components, as doors, lining, floor, partitions, and coverings. However, there is little information about the resistance of them to xylophagous organisms. This is important due the different uses of particleboards, where they will be subject to attacks by decaying organisms, which can affect a structure and put people at risk. The present study aims to determine the biological resistance of particleboard produced with pine, sugarcane bagasse and malva particles to xylophagous organisms. The particleboard was produced with different proportions of pine wood heat treated at 200 °C and malva fiber (outer layers) and sugarcane bagasse core glued with an adhesive based on polyurethane from castor oil. No-choice and choice feeding tests with dry wood ( Cryptotermes brevis ) and conehead ( Nasutitermes corniger ) termites were carried out for the resistance test to xylophagous organisms, in addition to a test with rotting fungi which cause brown ( Gloeophyllum trabeum  and  Rhodonia placenta ) and white rot ( Irpex lacteus  and  Trametes versicolor ). The trial with dry wood termites showed low mass losses, regardless of the proportions applied. The mass losses were accentuated for the test with conehead termite, having the particleboard composed of 100% pine been the most resistant among the boards tested. The greatest mass losses for fungal resistance were caused by  Gloeophyllum trabeum . The particleboard produced with 100% pine (outer layer) showed the highest resistance to the tested xylophagous organisms.

Biological resistance of sandwich particleboard made with sugarcane, thermally-treated Pinus wood and malva fiber