Data/hora: 09/06/2024 09:29:32

Provedor de dados: | 42
País: | Brazil
Título: | Enhancement of Hevea brasiliensis properties through chemical application
Autores: | KADIR,ROSZAINI; JANTAN,MOHD D.
Data: | 2016-12-01
Ano: | 2016
Palavras-chave: | Hevea brasiliensis; Bleaching agents; Physical; Mechanical; Biological properties.
Resumo: | ABSTRACT The effects of four different types of bleaching agents (hydrogen peroxide, sodium hypochlorite, sodium chlorite and oxalic acid) mixed together with 2% boron-based preservative (Celbor SP) were studied on green sawn rubberwood. Two concentration levels (1% and 2%) of were used. Whitish values (W) and colour changes (ΔE) of sawn rubberwood were assessed before and after chemical treatment using a colour meter. Preliminary observation indicated that timber treated with 1% and 2% hydrogen peroxide produced better and more homogeneous colour properties. Hydrogen peroxide treated timber gave higher whitish values (6.23 and 9.91 for 1% and 2% solution, respectively) and lower colour changes (8.49 and 5.51 for 1% and 2% solution, respectively) when compared to the other three chemicals. Evaluation on the effects of bleaching (hydrogen peroxide with a higher level of concentration) on physical, mechanical and biological properties of rubberwood also have been determined in this study.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000602081
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765201620150650
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.88 n.4 2016
Fonte: | info:eu-repo/semantics/openAccess