| People | Locations | Statistics |
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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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Torvinen, Katariina
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2020Feasibility of foam forming technology for producing wood plastic compositescitations
- 2018Detection of iron and iron-cobalt labeled cellulose nanofibrils using ICP-OES and XμCTcitations
- 2017Novel biobased micro- and nanomaterials in porous foam formed structures
- 2016Highly porous fibre structures and biocomposites made of mixtures of wood, biopolymers and hemp
- 2014Drying of Pigment-Cellulose Nanofibril Substratescitations
- 2014Flexible pigment-nanocellulose substrate for printed electronics with good thermal tolerance
- 2013Flexible bio-based pigment-nanocellulose substrate for printed electronics with good thermal tolerance
- 2012Flexible bio-based pigment nanocellulose substrate for printed electronics
- 2012Smooth and flexible filler-nanocellulose composite structure for printed electronics applicationscitations
Places of action
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article
Detection of iron and iron-cobalt labeled cellulose nanofibrils using ICP-OES and XμCT
Abstract
When studying the properties of cellulose nanofibrils (CNF) enriched fiber products, it is essential to be able to determine the retention and the spatial distribution of the CNF inside the end-product. That is, to determine how much and where the CNF has been attached. As the CNF and cellulose fibers share the same density and chemical composition, labeling of the CNF is required to distinguish them from each other. In this work, we have applied iron and iron-cobalt -labeling. Labeling with iron is more desirable because of the carcinogenic and toxic properties of cobalt chloride. The benefits of our labeling method are the possibility to determine the retention of the labeled nanocellulose using inductively coupled plasma optical emission spectroscopy (ICP-OES), and to define the spatial distribution using X-ray micro-computed tomographic (XμCT). With XμCT we were able to measure fairly large samples (2 cm × 5 cm × 5 cm). Our study found that the retention of iron-labeled CNF was about 95 % and that of iron-cobalt labeled CNF was 84-94 %. Labeling of CNF improves the contrast of X-ray images. Labeled CNF is attached to fiber network also in the inner structures of the sample. Furthermore, when making thick porous structures using cationic starch, there might be agglomerates in the sample that cannot be visually detected by looking the sample.