2026-04-17T00:41:21Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/213262024-06-18T12:07:18Zcom_2072_452955com_2072_2054col_2072_453062

00925njm 22002777a 4500 dc Oliver Ortega, Helena author Tarrés Farrés, Joaquim Agustí author Mutjé Pujol, Pere author Delgado Aguilar, Marc author Méndez González, José Alberto author Espinach Orús, Xavier author 2020-09-18 The research toward environmentally friendly materials has devoted a great effort on composites based on natural fiber-reinforced biopolymers. These materials have shown noticeable mechanical properties, mainly tensile and flexural strengths, as a consequence of increasingly strong interfaces. Previous studies have shown a good interface between natural fibers and poly (lactic acid) (PLA) when these fibers present a low lignin content in their surface chemical composition (bleached fibers). Nonetheless, one of the main drawbacks of these materials is the hydrophilicity of the reinforcements in front of the mineral ones like glass fiber. Meanwhile, the behavior of such materials under impact is also of importance to evaluate its usefulness. This research evaluates the water uptake behavior and the impact strength of bleached Kraft softwood-reinforced PLA composites that have been reported to show noticeable tensile and flexural properties. The paper explores the differences between these bio-based materials and commodity composites like glass fiber-reinforced polypropylene This research was funded by the MAT2017-83347-R grant of the Spanish Ministry of Economy and Competitiveness http://hdl.handle.net/10256/21326 Polímers Polymers Biopolímers Biopolymers Fibres naturals Plant fibers Impact Strength and Water Uptake Behavior of Bleached Kraft Softwood-Reinforced PLA Composites as Alternative to PP-Based Materials