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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Grigsby, Warren
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2019A new methodology for rapidly assessing interfacial bonding within fibre-reinforced thermoplastic compositescitations
- 2019Assessing panelboard volatile organic compound emission profiles through renewables use
- 2019Volatile organic compounds (VOCs) from lauan (Shorea ssp.) plyboard prepared with kraft lignin, soy flour, gluten meal and tannincitations
- 2019Quantitative assessment and visualisation of the wood and poly(lactic acid) interface in sandwich laminate compositescitations
- 2019Using renewables in panelboard resins to influence volatile organic compound emissions from panelscitations
- 2017Flexural properties of PVC/Bamboo composites under static and dynamic - Thermal conditions: Effects of composition and water absorptioncitations
- 2017Thermal stability of processed PVC/bamboo blends: Effect of compounding procedurescitations
- 2015Synchrotron-based x-ray fluorescence microscopy in conjunction with nanoindentation to study molecular-scale interactions of phenol?formaldehyde in wood cell wallscitations
- 2015Evaluating the extent of bio-polyester polymerization in solid wood by thermogravimetric analysiscitations
- 2014Evaluating poly(lactic acid) fibre reinforcement with modified tanninscitations
- 2014Rubber-like materials prepared from copolymerization of tannin fatty acid conjugates and vegetable oilscitations
- 2012Chemical changes in Pinus radiata during torrefaction as followed by 13C CP-MAS and dipolar dephased NMR spectroscopy
- 2012IRENI-FTIR chemical imaging of wood cell walls infiltrated with phenol formaldehyde adhesive
- 2012Vegetable oil thermosets reinforced by tannin-lipid formulationscitations
- 2010Evaluation of adhesive penetration of wood fibre by nanoindentation and microscopy
- 2007Microcrystallinity and colloidal peculiarities of UF/isocyanate hybrid resinscitations
- 2007Thermal degradation of polyphenolic containing bark extracts
- 2006Activation of pine bark tannin for use in cold-set structural adhesives
- 2005Evaluation of latex adhesives containing hydrophobic cores and poly(vinyl acetate) shells: potential to reduce poly(vinyl acetate) glueline creep
- 2004X-ray photoelectron spectroscopy determination of resin coverage on MDF fibre
- 2002Interaction of wax and UF resin in MDF: quantification of wax and resin distribution by confocal microscopy
- 2002Interaction of Wax and UF Resin in MDF: Qualitative Analysis of the Relationships Between Wax and Resin on MDF Fibre
Places of action
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article
X-ray photoelectron spectroscopy determination of resin coverage on MDF fibre
Abstract
Resin binder in composite panels such as medium density fibreboard(MDF)is critical for panel integrity. How this resin is distributed throughout the fibre matrix will have an impact on panel properties. X-ray photon spectroscopy(XPS)has the potential to be used in characterising resin distribution on MDF fibre,as it is a surface analysis technique for determining the composition of elements on the surface of substrates. XPS can be used to calculate the proportion of fibre surface covered by nitrogen containing UF resin to give total coverage of fibre by resin,and may also provide corroborating evidence for resin coverage determined by microscopy methods. XPS was successfully used to determine UF resin surface coverage of fibre in blowline resinated fibre and MDF as well as dry-blended MDF over a range of resin loadings,wax contents and different resin application methods. Comparison of XPS coverage values with those obtained using confocal microscopy(CLSM)coupled with fluorescently labelled resin revealed substantially differing absolute resin coverage of fibre between the two techniques. Although there was a correlation between the two techniques confirming trends in coverage values found by CLSM analysis for dry-blended panels,grouping resin coverage values having more than one processing variation did not establish any relationship between XPS and CLSM coverage values,whether for dry-blended or blowline resinated MDF. Inherent difficulties with this surface-only XPS technique was the high variability of XPS analysis between some MDF samples due to variation in replicate sample surfaces and surface oxidation. Additionally,lower resin coverage was observed on panel surfaces than for unpressed fibre,contrary to CLSM findings. Analysis of panels formed with and without wax suggest wax movement as well as deposition of other materials on the fibre surface during hot pressing lowered surface%N contents,further limiting this technique.