caa a22 4500 445384352 CHVBK 20180317143027.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10924-010-0260-6 doi (NATIONALLICENCE)springer-10.1007/s10924-010-0260-6 Self-Bonding Boards From Plantain Fiber Bundles After Enzymatic Treatment: Adhesion Improvement of Lignocellulosic Products by Enzymatic Pre-Treatment [Elektronische Daten] [Catalina Álvarez, Benjamín Rojano, Ovidio Almaza, Orlando Rojas, Piedad Gañán] Self-bonding boards were manufactured with treated fibers at different concentrations of a laccase enzyme. This enzyme induced the generation of phenoxy radicals in the fiber lignin which can generate covalent bonds and cross-linked by radical-radical coupling. The effect of laccase concentration on the properties of obtained fiberboards was evaluated. The formation of free radicals and changes in the lignin macromolecule was measured using scavenging activity test, infrared spectroscopy, electron paramagnetic resonance and scanning electron microscopy. Thermal and mechanical properties of the resulting fiberboards were determined by differential scanning calorimetry, thermo gravimetric analysis and flexion tests. Increased thermal stability, modulus of elasticity and modulus of rupture and also, a reduction in thickness swelling and water absorption, were observed at higher concentrations of laccase. These results are ascribed to the effect of the free radicals that were generated during the enzymatic treatment. Springer Science+Business Media, LLC, 2010 Self-bonding nationallicence Plantain fibers nationallicence Laccase nationallicence Boards nationallicence Free radicals nationallicence Álvarez Catalina School of Engineering, Mechanical Engineering Program, New Materials Research Group, Universidad Pontificia Bolivariana, Circular 1, # 70-01, bloque 11, Medellín, Colombia aut Rojano Benjamín Department of Chemistry, Universidad Nacional de Colombia, Medellín, Colombia aut Almaza Ovidio Department of Physics, Universidad Nacional de Colombia, Bogotá, Colombia aut Rojas Orlando Department of Forest Biomaterials, North Carolina State University, Raleigh, NC, USA aut Gañán Piedad School of Engineering, Mechanical Engineering Program, New Materials Research Group, Universidad Pontificia Bolivariana, Circular 1, # 70-01, bloque 11, Medellín, Colombia aut Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/1(2011-03-01), 182-188 1566-2543 19:1<182 2011 19 10924 https://doi.org/10.1007/s10924-010-0260-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-010-0260-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Álvarez Catalina School of Engineering, Mechanical Engineering Program, New Materials Research Group, Universidad Pontificia Bolivariana, Circular 1, # 70-01, bloque 11, Medellín, Colombia aut NATIONALLICENCE 700 1- Rojano Benjamín Department of Chemistry, Universidad Nacional de Colombia, Medellín, Colombia aut NATIONALLICENCE 700 1- Almaza Ovidio Department of Physics, Universidad Nacional de Colombia, Bogotá, Colombia aut NATIONALLICENCE 700 1- Rojas Orlando Department of Forest Biomaterials, North Carolina State University, Raleigh, NC, USA aut NATIONALLICENCE 700 1- Gañán Piedad School of Engineering, Mechanical Engineering Program, New Materials Research Group, Universidad Pontificia Bolivariana, Circular 1, # 70-01, bloque 11, Medellín, Colombia aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/1(2011-03-01), 182-188 1566-2543 19:1<182 2011 19 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer