2026-04-03T19:41:29Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/212332024-06-18T12:07:11Zcom_2072_452955com_2072_2054col_2072_453062

00925njm 22002777a 4500 dc Bascón-Villegas, Isabel author Espinosa, Eduardo author Sánchez, Rafael author Tarrés Farrés, Joaquim Agustí author Pérez-Rodríguez, Fernando author Rodríguez, Alejandro author 2020-07-18 Horticultural plant residues (tomato, pepper, and eggplant) were identified as new sources for lignocellulose nanofibers (LCNF). Cellulosic pulp was obtained from the different plant residues using an environmentally friendly process, energy-sustainable, simple, and with low-chemical reagent consumption. The chemical composition of the obtained pulps was analyzed in order to study its influence in the nanofibrillation process. Cellulosic fibers were subjected to two different pretreatments, mechanical and TEMPO(2,2,6,6-Tetramethyl-piperidin-1-oxyl)-mediated oxidation, followed by high-pressure homogenization to produce different lignocellulose nanofibers. Then, LCNF were deeply characterized in terms of nanofibrillation yield, cationic demand, carboxyl content, morphology, crystallinity, and thermal stability. The suitability of each raw material to produce lignocellulose nanofibers was analyzed from the point of view of each pretreatment. TEMPO-mediated oxidation was identified as a more effective pretreatment to produce LCNF, however, it produces a decrease in the thermal stability of the LCNF. The different LCNF were added as reinforcing agent on recycled paperboard and compared with the improving produced by the industrial mechanical beating. The analysis of the papersheets’ mechanical properties shows that the addition of LCNF as a reinforcing agent in the paperboard recycling process is a viable alternative to mechanical beating, achieving greater reinforcing effect and increasing the products’ life cycles This research was funded by Spain’s DGICyT, MICINN within the framework of the Project CTQ2016-78729-R http://hdl.handle.net/10256/21233 Cartó -- Reciclatge Paperboard -- Recycling Residus agrícoles -- Reciclatge Agricultural wastes -- Recycling Nanofibres Nanofibers Horticultural Plant Residues as New Source for Lignocellulose Nanofibers Isolation: Application on the Recycling Paperboard Process