Pedro Ortega-Gudiño

Pedro Ortega-Gudiño
University of Guadalajara | UDG · Centro Universitario de Ciencias Exactas e Ingenierías (CUCEI)

Doctor en Ciencias en Ingeniería Química

About

22
Publications
8,019
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296
Citations
Additional affiliations
January 1999 - present
University of Guadalajara
Position
  • Researcher
Description
  • Experiencia en el desarrollo de nuevos materiales para aplicaciones industriales y biomédicas, en tecnologías para el aprendizaje, docencia en diseño de equipo y simulación de procesos químicos. Twitter: @DrGudinho

Publications

Publications (22)
Article
Full-text available
This study investigates the addition of ground tire rubber (GTR) into virgin polyamide 6 (PA6) to produce thermoplastic elastomer (TPE) blends. In particular, a wide range of GTR concentration (0–100% wt.) was possible by using a simple dry blending technique of the materials in a powder form followed by compression molding. The molded samples were...
Article
Full-text available
In order to provide a second economic life to agave fibers, an important waste material from the production of tequila, filaments based on polylactic acid (PLA) were filled with agave fibers (0, 3, 5, 10 wt%), and further utilized to produce biocomposites by fused deposition modeling (FDM)-based 3D printing at two raster angles (−45°/45° and 0/90°)...
Article
In this work, rotational molding was used to produce parts based on a blend of linear low‐density polyethylene (LLDPE) and polyamide 6 (PA6). In particular, the concentration of PA6 (0, 10, 20, and 30% vol) with and without a compatibilizer (Surlyn 9020) was investigated via two methods: dry blending in a high‐shear mixer and melt compounding in a...
Article
Full-text available
In this work, the suitability for the production of sustainable and lightweight materials with specific mechanical properties and potentially lower costs was studied. Agave fiber (AF), an agro-industrial waste, was used as a reinforcement and azodicarbonamide (ACA) as a chemical blowing agent (CBA) in the production of bilayer materials via rotatio...
Article
Full-text available
Nowadays, the need to reduce the dependence on fuel products and to achieve a sustainable development is of special importance due to environmental concerns. Therefore, new alternatives must be sought. In this work, extruded fibers from poly (lactic acid) (PLA) and poly (butylene adipate-co-terephthalate) (PBAT) added with cinnamon essential oil (C...
Article
Full-text available
Materiales reforzados de polietileno lineal de media densidad (PELMD) y fibras de carbono (FC) fueron preparados por moldeo por termocompresión a diferentes concentraciones de FC (0, 5, 10, 15, y 20%). Los componentes se mezclaron primeramente en una licuadora industrial para dispersar la fibra antes del moldeo. Las propiedades mecánicas de los com...
Article
Biodegradable aliphatic polyesters are an alternative to reduce the use of synthetic plastic materials that cause severe damage to the environment. Formulations based on poly (lactic acid) (PLA) and poly (butylene adipate-co-terephthalate) (PBAT), were mixed in a 60:40 ratio, adding different concentrations of pine essential oil through the use of...
Patent
Full-text available
Una mezcla y combinación formada por poli-etilenglicol diacrilato, 1-vinil-2-pirrolidona y un agente fotoiniciador, así o como la misma mezcla con un refuerzo cerámico como hidroxiapatita. Una resina fotopolimerica útil para impresión 3D, que comprende la mezcla y/o combinación antes referidas. Una combinación para preparar un material biocomposite...
Article
Overall, autologous bone grafting continues to be the gold standard for the restoration of bone defects while other practices include metallic meshes and plates. These practices are not always suitable particularly when performing reconstructive surgery in the maxillofacial region as the defects tend to be complex in terms of size and shape. These...
Conference Paper
Full-text available
A three-layer composite (polymer-fiber / polymer-foam / polymer-virgin) was made by rotational molding using a laboratory-scale biaxial rotational molding machine. The mold consists of a cylindrical stainless steel of five liters of volume. A linear medium density polyethylene (LMDPE) was used in all layers. In the composite layer a natural fiber (...
Article
Full-text available
A multilayer material was produced by rotational molding to study the effect of composition on the mechanical behavior of a cylindrical liquid container. The first (outer) layer was a composite of linear medium density polyethylene (LMDPE) with 5, 10, or 15 wt% agave fiber (AF). The core (middle) layer was foamed LMDPE with different amount of foam...
Article
Full-text available
Foamed linear medium density polyethylene parts were prepared by rotational molding in biaxial mode, using different amounts of chemical-blowing agent (azodicarbonamide). Morphological and mechanical properties are presented and discussed in terms of foam density, cell density, average cell diameter, and open cell content. Internal air temperature...
Article
This work reports on the properties of high density polyethylene based hybrid composites made with two natural fibers: agave and pine. The composites were produced by a combination of extrusion and injection molding. The effect of hybridization was analyzed via morphological, mechanical and water immersion tests for two total fiber contents, 20 and...
Article
Full-text available
The thermoresponsive behavior and mechanical properties of nanostructured hydrogels, which consist of poly(acrylamide) nanoparticles embedded in a cross-linked poly(N-isopropylacrylamide) hydrogel matrix, are reported here. Nanostructured hydrogels exhibit a tuned volume phase transition temperature (T VPT), which varies with nanoparticle content i...
Article
Full-text available
The synthesis of polyacrylamide nanoparticles by semi-continuous inverse heterophase polymerization as a function of feeding rate of monomer aqueous solution is reported here. In this process, a concentrated acrylamide aqueous solution is dosed semi-continuously at various rates over an AOT-toluene solution containing the initiator. Our results ind...
Article
In this study, agave fiber/linear medium density polyethylene composites were manufactured by rotational molding. A laboratory scale biaxial machine was used, where the internal air temperature during the processing cycle was measured. Two sizes of agave fibers (50 and 100 mesh) were used separately and mixed together (50/50) at concentrations vary...
Article
Full-text available
In this work, preparation and characterization of HDPE/PA6 foam blends is presented. Using a chemical blowing agent based on azodicarbonamide, foams were produced via extrusion using different concentrations of the dispersed phase PA6. Due to very different thermal and rheological properties of the polymers, good cellular structures could only be o...
Article
To obtain biodegradable materials for biomedical applications, new biopolymeric hydrogels based on blends of polyacrylamide nanoparticles and chitosan have been prepared. In this work, we have studied the behavior of the diffusion of ascorbic acid (V-C) from poly(acrylamide-co-acrylic acid)/chitosan nanostructured hydrogels. The process involves th...
Article
Full-text available
Summary In this work the diffusional behavior of water and ascorbic acid (V-C) from a new crosslinked nanostructured polyacrylamide (polyAM) hydrogels is analyzed. The process involves the synthesis of slighlty crosslinked nanoparticles of polyAM by inverse microemulsion polymerization. The dried nanoparticles are dispersed in an aqueous solution o...
Article
Full-text available
The synthesis of microstructured polyacrylamide-co-chitosan and polyacrylamida-co-chitosan/xanthan hydrogels with large swelling capacity and improved mechanical properties were studied. Crosslinked polyacrylamide particles of nanosize scale are made by inverse microemulsion polymerization. These particles are then dried and redispersed in an aqueo...