Disease transmitting microorganisms, such as bacteria, viruses and fungi, are the main causes of hospital‐acquired infections (HAI). This is the justification for the development of nanotechnology‐based new materials and, in particular, for the synthesis of antibacterial nanocomposites of the type polymer / antibacterial metal, which create surfaces with a large bacteria inhibiting activity. In the present work, antibacterial polymeric nanocomposites have been created by preparing polyvinyl chloride (PVC) from a resin emulsion as plastisol and synthesizing copper nanoparticles in‐situ within the polymer matrix. The methodology of the process includes the synthesis of a copper precursor, its dispersion by ultrasonic pulses, its stabilization and mixing with other PVC additives, in order to obtain chemical reduction during the gelation of the plastisols. Analysis of the PVC / NPsCu0 ...

Disease transmitting microorganisms, such as bacteria, viruses and fungi, are the main causes of hospital‐acquired infections (HAI). This is the justification for the development of nanotechnology‐based new materials and, in particular, for the synthesis of antibacterial nanocomposites of the type polymer / antibacterial metal, which create surfaces with a large bacteria inhibiting activity. In the present work, antibacterial polymeric nanocomposites have been created by preparing polyvinyl chloride (PVC) from a resin emulsion as plastisol and synthesizing copper nanoparticles in‐situ within the polymer matrix. The methodology of the process includes the synthesis of a copper precursor, its dispersion by ultrasonic pulses, its stabilization and mixing with other PVC additives, in order to obtain chemical reduction during the gelation of the plastisols. Analysis of the PVC / NPsCu0 ...

La presente tesis es un trabajo de investigación para la mejora del proceso de recepción del mineral en la planta procesadora de mineral COLIBRI S.A.C.” Esta empresa se dedica a la exploración, proceso y exportación de minerales con contenido aurífero. Este estudio del trabajo se desarrolló con el fin de conocer, medir, documentar, diseñar y proponer los mejores métodos, habilidades con el fin de disminuir tiempos en el proceso de recepción de los minerales. Para la realización de un estudio de proceso métodos), es necesario conocer y entender cada una de las etapas y procedimientos que cuenta el proceso, para así mismo tener un criterio objetivo y elaborar un diagnóstico que permita posteriormente realizar un análisis riguroso. Para el diagnostico se realizan observaciones, documentación y desglose del trabajo actual en elementos para determinar el proceso, con el objet...