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Calcium phosphate bonded wood and fiber composite panels: production and optimization of panel properties
Stellenbosch University, South Africa. (GoFP)ORCID iD: 0000-0002-8790-8964
Stellenbosch University, South Africa.
Stellenbosch University, South Africa.
2017 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 71, no 9, p. 725-732Article in journal (Refereed) Published
Abstract [en]

The development of phosphate bonded composites with properties comparable with those of current Portland cement bonded products has been investigated. More precisely, the focus of the study was the optimization of calcium phosphate cements in combination with wood processing residues slash pine (Pinus elliottii Engelm.) planer shavings, Black wattle (Acacia mearnsii De Wild.) residues, Blue gum (Eucalyptus globulus Labill.) residues, hemp (Cannabis Sativa L.) hurds and dried crushed sugarcane bagasse (Saccharum officinarum L.) as well as pulp mill sludge and waste paper. A central composite design (CCD) for the response surface methodology (RSM) was applied for selection of the proper parameters. Mechanical tests were conducted on the composite products and the effect of the processing variables was evaluated based on the Pareto analysis of variance. The density of the wood-based panels ranged from 0.68 to 1.21 g cm−3, that of the agricultural fibers from 0.59 to 1.15 g cm−3 and that of the paper pulp panels from 0.81 to 1.21 g cm−3. The modulus of elasticity (MOE) data of the panels ranged from 1.63 to 4.92 MPa for wood, from 0.37 to 3.28 MPa for agricultural fibers and from 0.65 to 3.87 MPa for paper-pulp-based fibers. The physical properties of the composite products met the requirements for Portland-cement-bonded particleboards (EN 634-2, 2007).

Place, publisher, year, edition, pages
Germany: Walter de Gruyter, 2017. Vol. 71, no 9, p. 725-732
National Category
Wood Science
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-81154DOI: 10.1515/hf-2016-0199OAI: oai:DiVA.org:lnu-81154DiVA, id: diva2:1297193
Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2019-03-21Bibliographically approved

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Amiandamhen, Stephen

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