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Quim Tarrés,M. Àngels Pèlach,Manel Alcalà,Marc Delgado-Aguilar 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.54 No.-
The aim of this work is to develop high-performance papers from recovered cardboard boxes. To tackle this objective, cardboard boxes were enzymatically refined and subsequently reinforced with CNF. Results revealed that although cardboard boxes are usually used for test-liner paper production, they could be used for high-performance applications. In this sense, stronger papers than common test-liner were produced through the use of harmless techniques for fibers. In terms of circular economy, the proposed combined approach goes further than closing the loop: new markets can be achieved or lighter papers could be used, leading to significant resources savings.
Sahar Salem,Helena Oliver-Ortega,Francesc X. Espinach,Karim Ben Hamed,Nizar Nasri,Manel Alcalà,Pere Mutjé 한국섬유공학회 2019 Fibers and polymers Vol.20 No.3
In the recent years, there has been a growing interest in eco-friendly composites, based on natural fiberreinforcements. In this work, Alfa fibers were obtained from Alfa grass (Stipa tenacissima) through an intensive cooking with sodium hydroxide and anthraquinone. These fibers, with contents ranging from 20 to 50 wt%, were used to reinforce a high density polyethylene. The composites were prepared in a kinetic mixer and later on tensile tested under standard conditions. The results showed that the tensile strength of the composites increased with the amount of fiber in the composite. Aditionally, a morphology and chemical composition analysis of the fibers surface were carried on, in order to further discuss the micromechanics analysis results. The average orientation factor and intrinsic tensile strength of the fibers were also determined during the micromechanics analysis.