Wettability of the surface of heat-treated juvenile teak wood assessed by drop shape analyzer



Título del documento: Wettability of the surface of heat-treated juvenile teak wood assessed by drop shape analyzer
Revue: Maderas : ciencia y tecnología
Base de datos:
Número de sistema: 000534589
ISSN: 0718-221X
Autores: 1

2
Instituciones: 1Universidade Federal Rural do Rio de Janeiro Instituto de Florestas Departamento de Produtos Florestais, Rio de Janeiro. Brasil
2Universidade Federal Rural do Rio de Janeiro Instituto de Florestas Departamento de Produtos Florestais, Rio de Janeiro. Brasil
Año:
Volumen: 20
Número: 2
Paginación: 249-256
País: Chile
Idioma: Inglés
Resumen en inglés This study investigated the effect of the heat treatment on the wettability of the surface of juvenile teak (Tectona grandis) wood assessed by drop shape analyzer. Heartwood and sapwood samples were heat-treated at 180 and 200ºC. Contact angle measurements were done every 5 s for 120 s using a KRÜSS DSA100. Heartwood had lower wettability than sapwood. Heat-treatment decreased the surface wettability of both heartwood and sapwood, especially in the wood treated at 200ºC. Heartwood had lower wettability than sapwood, even after heat treatment.
Keyword: Chemical modification,
Contact angle,
Heartwood,
Hygroscopicity,
Sapwood,
Tectona grandis
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