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Orientador(es)
Resumo(s)
Adhesives made from lignin are one of the most promising alternatives to common ureaformaldehyde adhesives. One of the possible sources is from wood or bark liquefaction at low
temperatures and pressure. The possibility of using forest wastes for the production of adhesives
was the objective of this work. Eucalypt bark and branches are wastes produced in the company
Pedrosa & Irmãos, which is a forest management company based in Portugal (Leiria). The wastes were liquefied with polyalcohols catalyzed by sulfuric acid. The water insoluble fraction
of the liquefied material was used for the production of the bio-adhesive. Both fractions were
characterized and the bonding performance of the bio-adhesive was tested by ABES. The
bio-adhesives obtained from bark or branches were similar, exhibiting a bonding strength
approximately half of the conventional UF resin.
Descrição
Palavras-chave
ABES Bark Bio-adhesives Branches Eucalyptus globulus Liquefaction
Contexto Educativo
Citação
BRUNO MIGUEL DE MORAIS LEMOS ESTEVES, LUISA PAULA VALENTE CRUZ-LOPES, ANA PAULA FERNANDES, JORGE MANUEL MARTINS, IDALINA DE JESUS DOMINGOS, JOSÉ VICENTE FERREIRA, SILVIA HELENA FUENTES DA SILVA, JALEL LABIDI, 2019, Adhesives from liquefied eucalypt bark and branches, Wood Research 64 (1):105-116.
Editora
Slovak Forest Products Research Institute