| 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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Quintana Marín, Germán Camilo
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021Mechanical refining combined with chemical treatment for the processing of Bamboo fibres to produce efficient cement compositescitations
- 2021Efecto de la sulfidez en la respuesta a flexión de tableros de cemento reforzados con fibras de guadua angustifolia kunth pre-tratadas alcalinamente
- 2021Enhanced efficiency of a chemically modified hyperbranched Kraft lignin in the removal of pharmaceuticals from water at low microgram per liter levelscitations
- 2021Rheological behavior of magnetic pulp fiber suspensions
- 2019Effect of degree of refining on flexural response of fibre cement boards reinforced with Guadua Angustifolia Kunth Bamboo
- 2017Sugarcane bagasse reinforced compositescitations
- 2016Thermal Study of Gels Obtained From Resol Type Phenolic Resins Modified With Lignincitations
- 2016Tensile strength assessment of injection-molded high yield sugarcane bagasse-reinforced polypropylenecitations
- 2016Starch-based biopolymer reinforced with high yield fibers from sugarcane bagasse as a technical and environmentally friendly alternative to high density polyethylenecitations
- 2016Cellulose nanofibers modified with alkyl ketene dimer for oil absorbent aerogels
- 2015Rheology of pulp suspensions of bleached sugarcane bagassecitations
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article
Thermal Study of Gels Obtained From Resol Type Phenolic Resins Modified With Lignin
Abstract
<p>Gels were obtained from resol type phenolic resins, with resorcinol, formaldehyde and lignin as precursors. Thermal response was evaluated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and curing kinetics were determined from the SDTA curves using Flynn–Wall–Ozawa and Friedman iso-conversional models. Additionally, it was used Fourier transform infrared spectroscopy (FTIR) to evaluate the progress of the curing reaction. These analyzes were performed for two gels, one of them prepared with lignin (lignin resin), and a reference (resorcinol resin). Lignin resins tend to be more thermally stable than resorcinol resins. Average values found for activation energy of the curing processes are 55.07 kJ mol<sup>−1</sup> and 60.60 kJ mol<sup>−1</sup> for resorcinol resin and lignin resins respectively using Flynn–Wall–Ozawa method; values of 51.94 kJ mol<sup>−1</sup> and 53.14 kJ mol<sup>−1</sup> were obtained using Friedman method. It was possible to conclude that the lignin affects positively the thermal stability of the resin; the curing reaction takes place in the first six hours and the Flynn–Wall–Ozawa model fits better.</p>