Chemical Modification of the Tropical Hardwood Species,Celtis mildbraedii(ESA FUFUO), to Improve its Durability
| Autor: | Kwame Ofosu Larbi, Eric D. Marfo, Emmanuel Yaw Wereko |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
040101 forestry
0106 biological sciences biology General Chemical Engineering Significant difference Chemical modification 04 agricultural and veterinary sciences General Chemistry biology.organism_classification 01 natural sciences Durability chemistry.chemical_compound Acetic anhydride Horticulture Celtis mildbraedii chemistry Propionic anhydride 010608 biotechnology Hardwood 0401 agriculture forestry and fisheries General Materials Science Cellulose |
| Zdroj: | Journal of Wood Chemistry and Technology. 38:51-56 |
| ISSN: | 1532-2319 0277-3813 |
| DOI: | 10.1080/02773813.2017.1372476 |
| Popis: | Celtis mildbraedii (esa fufuo) is a high density hardwood species and abundant in the forest of Ghana. It can be used for construction but is non-durable. In this study, esa fufuo was chemically modified with acetic anhydride (AA) or propionic anhydride (PA) to improve its durability against fungi and termites. Percentage weight loss and visual fungal and termite destruction grades were obtained from a graveyard test conducted for twelve weeks. The modified samples were more durable than the unmodified samples and there was no significant difference in durability between the AA and PA modified samples. The weight loss of the AA and PA modified samples after twelve weeks ground contact were 0.37% and 1.52% respectively, while that of the unmodified samples was 59.10%. |
| Databáze: | OpenAIRE |
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