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Termite Resistance of Heat-Treated Eucalyptus OSB Bonded with Eco-Friendly Castor Oil Adhesive

Journal of Renewable materials 2024年第11期12卷 1911-1925页

作者： Estefani S.Sugahara Andre M.A.Dias Fernanda D.Maffioletti Juarez B.Paes Andre L.Christoforo Edson C.Botelho Alfredo M.P.G.Dias Cristiane I.Campos SerQ Innovation and Competence Forest CenterSertã6100-711Portugal materials and Technology Department Faculty of Engineering and Sciences of GuaratinguetáSão Paulo State University(UNESP)Guaratinguetá12516-410Brazil Department of Civil Engineering University of CoimbraCoimbra3030-790Portugal Exact Sciences and Technology Center Federal University of São CarlosSão Carlos13565-905Brazil Department of Forest and Wood Science Federal University of Espírito SantoJeronimo Monteiro29550-000Brazil

Over the last decade,the oriented strand board(OSB)market presented meaningful ***,as a woodbased product,because of its anatomical structure and chemical composition,OSB can be damaged by biodeterioration *** that,the biodeterioration of OSB panels must be investigated to improve its *** this way,this work analyses the biological resistance against termites(Cryptotermes brevis and Nasutitermes corniger)of heat-treated OSB panels made with Eucalyptus wood glued with vegetable-based polyurethane-an ecofriendly and sustainable adhesive derived from castor *** panels were produced with different layers compositions(face:core:face of 25:50:25 and 30:40:30)in wood mass proportion and were submitted to postproduction heat treatment(at 175℃ and 200℃)replacing the use of chemical *** influence of the layers variation and heat treatment temperature were evaluated,and these results were compared with commercial panels(made from pinus wood with insecticide).The results showed that the heat treatment did not improve the resistance against termite ***,all the experimental panels presented a satisfactory performance that was compatible with the commercial panels produced with insecticide available in the Brazilian *** combination of Eucalyptus wood and castor oil adhesive to produce OSB,in any variation of layer composition,demonstrated natural resistance against termite attack compatible with the commercial panels,even without using chemical additives to increase durability.

关键词： alternative raw materials biodeterioration OSB panel castor oil adhesive wood products

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