| 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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Sixta, H.
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article
Upcycling of waste paper and cardboard to textiles
Abstract
In continuation of previously reported results, the ionicliquid 1,5-diazabicyclo[4.3.0]non-5-ene-1-ium acetate wasalso found to be a powerful non-derivatizing solvent forcellulosic waste such as paper and cardboard. The ionicliquid could dissolve all the present bio-polymers(cellulose, hemicellulose, and lignin) in highconcentrations, resulting in solutions with visco-elasticproperties that were suitable for dry-jet wet fiberspinning. The cellulosic raw materials were refinedgradually to identify the influence of residualcomponents on the spinnability of the respectivesolution. Polymer degradation and losses in the spinningprocess could be avoided nearly entirely. With theexception of virtually unrefined cardboard, all thesamples showed excellent spinnability, resulting infibers with high tensile strength. Prototype textileswere produced to validate the quality of the fibers anddemonstrate the possibility of using residual lignin incardboard as a natural dye.