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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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Khakalo, Alexey
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2023Biodegradable Cellulose Nanocomposite Substrate for Recyclable Flexible Printed Electronicscitations
- 2022Nanocellulose Removes the Need for Chemical Crosslinking in Tannin-Based Rigid Foams and Enhances Their Strength and Fire Retardancycitations
- 2021Manufacture of all-wood sawdust-based particle board using ionic liquid-facilitated fusion processcitations
- 2021Rheological behavior of high consistency enzymatically fibrillated cellulose suspensionscitations
- 2020Wood based materials with ionic liquid fusion
- 2019Anti-oxidative and UV-absorbing biohybrid film of cellulose nanofibrils and tannin extractcitations
- 2018The effect of oxyalkylation and application of polymer dispersions on the thermoformability and extensibility of papercitations
- 2018Protein-mediated interfacial adhesion in composites of cellulose nanofibrils and polylactidecitations
- 2017Layer-by-layer assembled hydrophobic coatings for cellulose nanofibril films and textiles, made of polylysine and natural wax particles
- 2017Protein Adsorption Tailors the Surface Energies and Compatibility between Polylactide and Cellulose Nanofibrilscitations
- 2017Advanced Structures and Compositions for 3D Forming of Cellulosic Fiberscitations
- 2017Advanced Structures and Compositions for 3D Forming of Cellulosic Fibers:Dissertation
- 2016Effect of polyurethane addition on the strength, extensibility and 3D formability of paper and board
- 2016Combined mechanical and chemical modifications towards super-stretchable paper-based materials
Places of action
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conferencepaper
Effect of polyurethane addition on the strength, extensibility and 3D formability of paper and board
Abstract
The extensibility and strength of fibre networks can be improved by modifying fibre material mechanically and by adding of polymers. Polyurethane (PU) is known to have interesting properties, like high extensibility. It was found, that the polyurethane dispersions can be effectively added to wet and dry paper by spraying on, as well as by wet-end addition to pulp suspension. In the wet end addition the retention of PU in paper is quite poor; however, it can be improved by fixing of PU by using a low molecular weight highly charged polymer. The improvements in extensibility increase with the amount of polyurethane retained in paper. However, considering the high extensibility (450%) of polyurethane the stiffness of the fibres and fibre network dominate the result. The adhesion of PU with paper, and the softening behavior (by DMTA tests), and surface energy measurements suggest that the compatibility of PU and kraft pulp could be better. Improvements are assumed to be due to the reasonable adhesion to fibres and thus fibres are connected by a material that has higher compliance than cellulosic material. The respective increase in extensibility was accompanied by relevant improvements in 2D- and 3D-formability.