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Boron in wood preservation: problems, challenges and proposed solutions - an overview on recent research

Title
Boron in wood preservation: problems, challenges and proposed solutions - an overview on recent research
Type
Article in International Scientific Journal
Year
2004
Authors
Fernando Caldeira
(Author)
Other
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Lina Nunes
(Author)
Other
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Cidália Botelho
(Author)
FEUP
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Other information
Authenticus ID: P-010-VZW
Resumo (PT):
Abstract (EN): A short review is presented on boron as a wood preservative. Sessions include the kind of chemicals applied and the level of efficiency obtained against several kind of fungi and termites, the influence of wood species, the traditional problem of boron leachability if timber is simply impregnated with aqueous solutions of acid boric or borate, but that at the same time enables impregnation of less permeable wood species by slow diffusion of unseasoned timber, the application of boron in conjunction with polymer or proteins, claimed as increasing significantly the resistance to leaching, and, finally, a summary is made on the boron chemistry that can be explored for boron-in-wood fixation studies, an approach that has been already started to be followed by the authors. resumo É feita uma revisão sintética sobre o elemento boro como um agente preservador da madeira. Temas específicos incluem os tipos de produtos químicos de boro que são aplicados na madeira, o nível de eficiência anti-biodeterioração que tem sido possível atingir contra várias espécies de fungos, e contra as térmitas, o problema tradicional da lixiviação do boro, se forem aplicadas meramente soluções aquosas de ácido bórico ou de borato, os tratamentos por difusão lenta na madeira verde, alguns métodos que aplicam o boro em conjunção com polímeros ou proteínas para aumentar a resistência à lixiviação, e um sumário da química do boro sobre a qual pode ser baseada investigação sobre a fixação do boro na madeira, uma abordagem já iniciada pelos autores.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 13
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