Decay and termite resistance of pine blocks impregnated with different additives and subjected to heat treatment

Autor: Solafa Salman, Anélie Pétrissans, Marie France Thévenon, Stéphane Dumarçay, Philippe Gérardin
Přispěvatelé: Laboratoire d'Etude et de Recherche sur le Matériau Bois (LERMAB), Université de Lorraine (UL), BioWooEB (UPR BioWooEB), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), LERMAB is supported by a grant overseen by the French NationalResearch Agency (ANR) as part of the ‘‘Investissements d’Avenir’’program (ANR-11-LABX-0002-01, Lab of Excellence ARBRE)., ANR-11-LABX-0002,ARBRE,Recherches Avancées sur l'Arbre et les Ecosytèmes Forestiers(2011)
Rok vydání: 2015
Předmět:
K50 - Technologie des produits forestiers
0106 biological sciences
Materials science
chemistry.chemical_element
Context (language use)
Isoptera
Thermal treatment
complex mixtures
01 natural sciences
[SPI]Engineering Sciences [physics]
Bois
chemistry.chemical_compound
010608 biotechnology
J12 - Manutention
transport
stockage et conservation des produits forestiers
[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering
General Materials Science
Leaching (agriculture)
Boron
ComputingMilieux_MISCELLANEOUS
Produit de préservation du bois
Traitement thermique
Efficacité
040101 forestry
Alternative methods
Waste management
Borax
Impact sur l'environnement
technology
industry
and agriculture
Biocidal Products Directive
Pinus sylvestris
Forestry
04 agricultural and veterinary sciences
15. Life on land
Température
Durability
chemistry
13. Climate action
Préservation du bois
0401 agriculture
forestry
and fisheries
Zdroj: European Journal of Wood and Wood Products
European Journal of Wood and Wood Products, Springer Verlag, 2016, 74 (1), pp.37-42. ⟨10.1007/s00107-015-0972-3⟩
European Journal of Wood and Wood Products, Springer Verlag, 2016, 74 (Issue 1), pp.37-42. ⟨10.1007/s00107-015-0972-3⟩
ISSN: 1436-736X
0018-3768
DOI: 10.1007/s00107-015-0972-3
Popis: Environmental pressures in France and in most European countries during the last decade have considerably changed the practises for wood protection. In this context, legislation and regulations, among which the Biocidal Products Directive (BPD) and Biocidal Products Regulations (BPR), are more and more constraining leading to the development of more environmentally acceptable preservation formulations and to an increasing interest in non-biocidal alternatives like thermal or chemical modifications. Wood heat treatment has been one of the most investigated alternative methods during the last years. However, even if some of the wood properties, like its decay resistance or and dimensional stability, are improved, the overall durability of the material is not sufficient to envisage use class 3 and 4 applications, where the wood is in direct contact with soil and termites. Impregnation of borax associated to polyglycerolmethacrylate (PGMA) before thermal treatment could be an attractive alternative to improve the performance of thermally modified wood in ground contact and especially its resistance to termites taking advantage of thermal treatment to initiate polymerization of PGMA within the wood structure to limit boron mobility. Thermo-modification with or without combination of boron impregnation and PGMA improved the durability of all wood samples. Thermal treatment alone or after boron impregnation and leaching was unable to effectively protect wood blocks against termites after leaching, while bocks treated with boron and PGMA were shown to be fully resistant to termites. More surprisingly, association of thermal treatment and PGMA impregnation without boron impregnation also produced protection against termite attack. Such treatments may be valuable alternatives to extend the scope of utilization of thermally modified wood in outdoor conditions.
Databáze: OpenAIRE
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