Browsing by Author "Espinach, Francesc Xavier"
Now showing items 1-15 of 15
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Behavior of the interphase of dyed cotton residue flocks reinforced polypropylene composites
Serra, Albert; Tarrés Farrés, Joaquim Agustí; Claramunt Blanes, Josep; Mutjé Pujol, Pere; Ardanuy Raso, Mònica; Espinach, Francesc Xavier (Elsevier, 2017-11-14)
Article
Open AccessTextile industry produces a high amount of residues that, nowadays, are poorly managed. The majority of such wastes are dumped and landfilled. Among all the textile value chain, cotton yarning factories produce wastes in ... -
Determination of mean intrinsic flexural strength and coupling factor of natural fiber reinforcement in polylactic acid biocomposites
Tarrés Farrés, Joaquim Agustí; Oliver Ortega, Helena; Espinach, Francesc Xavier; Mutjé Pujol, Pere; Delgado-Aguilar, Marc; Méndez González, José Alberto (Multidisciplinary Digital Publishing Institute (MDPI), 2019-10-23)
Article
Open AccessThis paper is focused on the flexural properties of bleached kraft softwood fibers, bio-based, biodegradable, and a globally available reinforcement commonly used in papermaking, of reinforced polylactic acid (PLA) composites. ... -
Effect of extruder type in the interface of PLA layers in FDM printers: filament extruder versus direct pellet extruder
Pagés-Llobet, Antoni; Espinach, Francesc Xavier; Julian, Fernando; Oliver Ortega, Helena; Méndez González, José Alberto (Multidisciplinary Digital Publishing Institute (MDPI), 2023-04-24)
Article
Open AccessFDM (Fused Deposition Modeling) is one of the most used and industrially applied additive manufacturing processes due to its fast prototyping and manufacturing, simplicity, and low cost of the equipment. However, the ... -
Evaluation of thermal and thermomechanical behaviour of bio-based polyamide 11 based composites reinforced with lignocellulosic fibres
Oliver-Ortega, Helena; Alberto Méndez, José; Mutjé Pujol, Pere; Tarrés, Quim; Espinach, Francesc Xavier; Ardanuy Raso, Mònica (2017-10-18)
Article
Open AccessIn this work, polyamide 11 (PA11) and stone ground wood fibres (SGW) were used, as an alternative to non-bio-based polymer matrices and reinforcements, to obtain short fibre reinforced composites. The impact of the ... -
Flexural properties and mean intrinsic flexural strength of old newspaper reinforced polypropylene composites
Tarrés Farrés, Joaquim Agustí; Soler, Jordi; Rojas Sola, José Ignacio; Oliver Ortega, Helena; Julian, Fernando; Espinach, Francesc Xavier; Mutjé Pujol, Pere; Delgado-Aguilar, Marc (Multidisciplinary Digital Publishing Institute (MDPI), 2019-07-26)
Article
Open AccessNewspapers have a limited lifespan, and therefore represent a focus of used and disposed paper. While these refuses have a considerable value and can be easily recycled, a considerable fraction ends in landfill. The authors ... -
Impact properties and water uptake behavior of old newspaper recycled fibers-reinforced polypropylene composites
Hernández Díaz, David; Villar Ribera, Ricardo Alberto; Espinach, Francesc Xavier; Julian, Fernando; Hernández Abad, Vicente; Delgado Aguilar, Marc (Multidisciplinary Digital Publishing Institute (MDPI), 2020-02-28)
Article
Open AccessNatural fiber-reinforced thermoplastic composites can be an alternative to mineral fiber-based composites, especially when economic and environment concerns are included under the material selection criteria. In recent ... -
Impact strength and water uptake behavior of bleached kraft softwood-reinforced PLA composites as alternative to PP-based materials
Oliver Ortega, Helena; Tarrés Farrés, Joaquim Agustí; Mutjé Pujol, Pere; Delgado-Aguilar, Marc; Méndez González, José Alberto; Espinach, Francesc Xavier (Multidisciplinary Digital Publishing Institute (MDPI), 2020-09-20)
Article
Open AccessThe 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 ... -
Impact strength and water uptake behaviors of fully bio-based PA11-SGW composites
Oliver-Ortega, Helena; Mendez, Jose Alberto; Espinach, Francesc Xavier; Tarrés, Quim; Ardanuy Raso, Mònica; Mutjé Pujol, Pere (Multidisciplinary Digital Publishing Institute (MDPI), 2018-06-30)
Article
Open AccessComposite materials have attracted the attention of some industrial fields due to their lightness and relatively good mechanical properties. One of these properties is impact strength, essential to ensure the processability ... -
Maleic anhydride polylactic acid coupling agent prepared from solvent reaction: synthesis, characterization and composite performance
Oliver Ortega, Helena; Reixach, Rafel; Espinach, Francesc Xavier; Méndez González, José Alberto (Multidisciplinary Digital Publishing Institute (MDPI), 2022-02-02)
Article
Open AccessIn the present work, a functionalization of polylactic acid (PLA) has been carried out to anchor maleic anhydride onto the main polymer chain to promote improvement in the compatibility of this polymer matrix with cellulose ... -
Research on the use of lignocellulosic fibers reinforced bio-polyamide 11 with composites for automotive parts: car door handle case study
Oliver Ortega, Helena; Julian, Fernando; Espinach, Francesc Xavier; Tarrés Farrés, Joaquim Agustí; Ardanuy Raso, Mònica; Mutjé Pujol, Pere (2019-04-15)
Article
Open Access -
Self-assessment of transversal competences in engineering students
Seculí Díaz, Faust; Hernández Díaz, David; Julián Pérez, Fernando; Espinach, Francesc Xavier; Alcalà Vilavella, Manel (International Association of Technology, Education and Development (IATED), 2021)
Conference lecture
Restricted access - publisher's policyThis study show the results of a self-assessment’s competences in engineering students from two Spanish universities, the Polytechnic University of Catalonia (UPC) and the University of Girona (UdG), carried out last year. ... -
Simulated environmental conditioning of PHB composites reinforced with barley fibres to determine the viability of their use as plastics for the agriculture sector
Oliver Ortega, Helena; Julian, Fernando; Espinach, Francesc Xavier; Méndez González, José Alberto (Multidisciplinary Digital Publishing Institute (MDPI), 2023-01-22)
Article
Open AccessNowadays, the search for new materials with a sustainable character to reduce the production of residues is under continuous research. In this sense, fully biodegradable composites based on polyhydroxybutyrate and different ... -
Study of the flexural modulus of lignocellulosic fibers reinforced bio-based polyamide11 green composites
Oliver-Ortega, Helena; Llop Manero, Miquel Francesc; Espinach, Francesc Xavier; Tarrés, Quim; Ardanuy Raso, Mònica; Mutjé Pujol, Pere (Elsevier, 2018-07-03)
Article
Open AccessThe stiffness of a material has high impact when its industrial use is considered. Moreover, this property has interest in the case of short fiber reinforced materials due to its dependence on the orientation of the fibers ... -
Topography of the interfacial shear strength and the mean intrinsic tensile strength of hemp fibers as a reinforcement of polypropylene
Hernández Díaz, David; Villar Ribera, Ricardo Alberto; Julian, Fernando; Tarrés Farré, Joaquim Agustí; Espinach, Francesc Xavier; Delgado Aguilar, Marc (Multidisciplinary Digital Publishing Institute (MDPI), 2020-02-20)
Article
Open AccessThe strength of the interphase between the reinforcements and the matrix has a major role in the mechanical properties of natural ¿ber reinforced polyole¿n composites. The creation of strong interphases is hindered by the ... -
Towards more sustainable material formulations: a comparative assessment of PA11-SGW flexural performance versus oil-based composites
Oliver-Ortega, Helena; Mendez, Jose Alberto; Reixach, Rafel; Espinach, Francesc Xavier; Ardanuy Raso, Mònica; Mutjé Pujol, Pere (2018-04-14)
Article
Open AccessThe replacement of commodity polyolefin, reinforced with glass fiber (GF), by greener alternatives has been a topic of research in recent years. Cellulose fibers have shown, under certain conditions, enough tensile capacities ...