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Browsing by Author "Martín Alfonso, José Enrique"
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Caracterizaciòn y aplicación de lignina de Paulownia obtenida mediante un proceso de autohidrólisis y deslignificación NaOH/antraquinona
López Baldovín, Francisco
; Zamudio, Minerva A. M.; Alva Salazar, Hugo Eduardo de; García Domínguez, Juan Carlos; Gracia Morales, M.; Martín Alfonso, José Enrique (Asociación de Químicos e Ingenieros del Instituto Químico de Sarriá, 2011)
Tradicionalmente la lignina se aprovecha energéticamente pero cada vez más se buscan nuevas aplicaciones como la fabricación de composites con propiedades físico-mecánicas iguales o superiores al polímero original. En ... -
Electrohydrodynamic Processing of PVP-Doped Kraft Lignin Micro- and Nano-Structures and Application of Electrospun Nanofiber Templates to Produce Oleogels
Rubio Valle, José F.; Sánchez Carrillo, María Carmen; Valencia Barragán, Concepción; Martín Alfonso, José Enrique; Franco Gómez, José María (MDPI, 2021)
The present work focuses on the development of lignin micro- and nano-structures obtained by means of electrohydrodynamic techniques aimed to be potentially applicable as thickening or structuring agents in vegetable ... -
Electrospun lignin-PVP nanofibers and their ability for structuring oil
Borrego, María; Martín Alfonso, José Enrique; Sánchez Carrillo, María Carmen; Valencia Barragán, Concepción; Franco Gómez, José María (2021-06-01)
This work explores the electrospinnability of low-sulfonate Kraft lignin (LSL)/polyvinylpyrrolidone (PVP) solutions in N,N-dimethylformamide (DMF) and the ability of the different micro- and nano-architectures generated to ... -
Impact of the Morphology of Electrospun Lignin/Ethylcellulose Nanostructures on Their Capacity to Thicken Castor Oil
Borrego, María; Martín Alfonso, José Enrique; Valencia Barragán, Concepción; Sánchez Carrillo, María Carmen; Franco Gómez, José María (MDPI, 2022-11)
This study reports on a novel strategy for manufacturing thickened gel-like castor oil formulations by dispersing electrospun lignin/ethylcellulose nanostructures. These thickened formulations were rheologically and ... -
Impact of Vegetable Oil Type on the Rheological and Tribological Behavior of Montmorillonite-Based Oleogels
Martín Alfonso, María José; Rubio Valle, José F.; Hinestroza, Juan P.; Martín Alfonso, José Enrique (MDPI, 2022-08)
We formulated and characterized oleogels based on montmorillonite clay and vegetable oils that could serve as eco-friendly semi-solid lubricants. In particular, we studied the influence of the physical-chemical properties ... -
Influence of surfactants on the electrospinnability of lignin‑PVP solutions and subsequent oil structuring properties of nanofiber mats
Borrego, María; Martín Alfonso, José Enrique; Valencia Barragán, Concepción; Sánchez Carrillo, María Carmen; Franco Gómez, José María (Springer, 2022-07-29)
This work focuses on the improvement of the electrospinnability of low-sulfonate lignin (LSL)/polyvinylpyrrolidone (PVP) solutions by the addition of surfactants (SDS, CTAB and Tween-20) as well as on the ability of ... -
Oil structuring properties of electrospun Kraft lignin/ cellulose acetate nanofibers for lubricating applications: influence of lignin source and lignin/cellulose acetate ratio
Rubio Valle, José F.; Valencia Barragán, Concepción; Sánchez Carrillo, María Carmen; Martín Alfonso, José Enrique; Franco Gómez, José María (2022-12-02)
In the present work, electrospun Kraft lignin/cellulose acetate nanostructures were produced, assessed and proposed as structuring or thickening agents of castor oil for lubricating applications. Solutions of Kraft ... -
Production of lignin/cellulose acetate fiber-bead structures by electrospinning and exploration of their potential as green structuring agents for vegetable lubricating oils
Rubio Valle, José F.; Sánchez Carrillo, María Carmen; Valencia Barragán, Concepción; Martín Alfonso, José Enrique; Franco Gómez, José María (Elsevier, 2022-08-30)
In this work we developed electrospun lignin/cellulose acetate fiber-bead nanostructures and explored their potential as structuring agents for vegetable oils to be used as eco-friendly lubricating oleogels. A variety of ... -
Promising Chalcogenide Hybrid Copolymers for Sustainable Applications as Bio-lubricants and Metal Adsorbents
Cubero Cardoso, Juan; Cuadri Vega, Antonio Abad; González Fermoso, Fernando; Martín Alfonso, José Enrique; Urbano Baena, Juan (American Chemical Society, 2022)
Inverse vulcanization has emerged as a reaction to achieve hybrid inorganic–organic polymeric materials, which allows us to use the high amount of sulfur produced during refining crude oil as a raw material. In this study, ... -
Rheological and tribological approaches as a tool for the development of sustainable lubricating greases based on nano-montmorillonite and castor oil
Martín Alfonso, José Enrique; Martín Alfonso, María José; Valencia Barragán, Concepción; Cuberes, María Teresa (Springer Open, 2020-10)
This study investigates the development of novel montmorillonite/castor oil blends to formulate sustainable lubricating greases to promote the replacement of petrochemicals industry-derived materials by substances obtained ... -
Uso de polímeros reciclados y convencionales como modificadores de las propiedades reológicas de grasas lubricantes
Martín Alfonso, José Enrique (2010)
Esta tesis doctoral se ha centrado en el estudio de la viabilidad técnica de la utilización de polímeros termoplásticos reciclados y convencionales, como aditivos o como agentes espesantes en el diseño de grasas lubricantes, ... -
Variations in Production and Oligomers Content Obtained Under Hydrothermal Treatment Among Five Fast-Growing Species
Díaz Blanco, Manuel Jesús; Yañez, R.; García Barneto, Agustín; Martín Alfonso, José Enrique; Feria Infante, Manuel Javier; Tapias Martín, Raúl; Fernández Martínez, Manuel (Bentham Science Publishers, 2010)
In order to identify fast growing species utilizable for olygomer and monomer production, five fast growing species (Paulownia fortunei, Chamaecytisus proliferus, Arundo donax, Leucaena.diversifolia and Sesbania ...
