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Phosphate bonded wood composite products from invasive Acacia trees occurring on the Cape Coastal plains of South Africa
Stellenbosch University, South Africa. (GoFP)ORCID iD: 0000-0002-8790-8964
Stellenbosch University, South Africa.
Stellenbosch University, South Africa.
Stellenbosch University, South Africa.
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2018 (English)In: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 76, no 2, p. 437-444Article in journal (Refereed) Published
Abstract [en]

The feasibility of manufacturing phosphatebonded wood composite board products from four locallyoccurring invasive acacia tree species (Acacia cyclops, A.saligna, A. mearnsii and A. longifolia) was studied usinga formulated magnesium oxide (MgO) and monopotassiumphosphate (KH2PO4) binder system. The optimizationfor the manufacturing process was studied using a centralcomposite statistical design, whereupon the following factorswere considered, i.e. KH2PO4:MgO ratio, the fly ashcontent as partial replacement for the binder and the woodcontent as a ratio of wood to the total inorganic content.A fitted response surface plot was used to show the effectof the main factors and their interactions on the measuredboard properties. A response surface model was developedto predict the parameters leading to the best board properties.All physical properties evaluated met or exceededthe minimum requirements for low density particleboards.The results showed that the variables considered have significanteffects on the physical properties of the boards.The optimum composite manufacturing process for makingdurable products within the scope of the studied specieswas found to be a KH2PO4/MgO ratio of 1.66, an ashcontent of 2.7% and a wood/inorganic ratio of 0.96 for theselected wood species.

Place, publisher, year, edition, pages
Springer, 2018. Vol. 76, no 2, p. 437-444
National Category
Wood Science
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-81153DOI: 10.1007/s00107-017-1191-xOAI: oai:DiVA.org:lnu-81153DiVA, id: diva2:1297189
Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2019-03-25Bibliographically approved

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Amiandamhen, Stephen

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CiteExportLink to record
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Citation style
  • apa
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  • vancouver
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Language
  • de-DE
  • en-GB
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  • nn-NB
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  • Other locale
More languages
Output format
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  • asciidoc
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