Wettability of the surface of heat-treated juvenile teak wood assessed by drop shape analyzer
Document title: Wettability of the surface of heat-treated juvenile teak wood assessed by drop shape analyzer
Journal: Maderas : ciencia y tecnología
Database:
System number: 000534589
ISSN: 0718-221X
Authors: 1

2
Institutions: 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
Year:
Volumen: 20
Number: 2
Pages: 249-256
Country: Chile
Language: Inglés
English abstract 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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