Reprocessing
Mostrando 1-12 de 43 artigos, teses e dissertações.
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1. Práticas relacionadas ao uso do garrote durante a punção venosa periférica: uma revisão de escopo
Objetivos durante a punção venosa periférica, recomenda-se o uso de um garrote acima do local da punção para potencializar a distensão venosa. Dadas as suas características e o uso em ambientes clínicos, os garrotes podem representar uma fonte de disseminação de micro-organismos. Entretanto, os resultados de estudos científicos nessa área estão
Rev. Latino-Am. Enfermagem. Publicado em: 29/04/2019
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2. Effects of Multiple Extrusions on Structure-property Performance of Natural Fiber High-density Polyethylene Biocomposites
Detailed analysis of the effects of multiple extrusions on physical, mechanical, micro-structural as well as dynamic mechanical thermal properties of natural fiber high-density polyethylene (HDPE) composites is reported. Composite materials containing HDPE, wood flour, and Maleic Anhydride polyethylene (MAPE) were manufactured and subjected to a recycling pr
Mat. Res.. Publicado em: 01/02/2018
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3. Polypropylene Composites Manufactured from Recycled Carbon Fibers from Aeronautic Materials Waste
Carbon fiber composites are used in several industries such as, aerospace, automotive, civil engineering, sports goods and technical applications due to its low-weight, strength and stiffness. However, the technology of recycling of these thermosetting polymer composites remains an engineering challenge because of their cross-linked structures that impede th
Mat. Res.. Publicado em: 23/10/2017
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4. High shear dispersion of tracers in polyolefins for improving their detection
Abstract An efficient recycling of end-of-life products is of crucial interest from an economical and ecological point of view. However, the near infrared spectroscopy often used for the optic sorting processes is limited because of the absorption of carbon black present in black plastics and as it only sorts as a function of chemical formulas. The tracing t
Polímeros. Publicado em: 2015-10
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5. The Recycling of Sugarcane Fiber/Polypropylene Composites
Mechanical recycling is utilized to reuse waste and obtain other plastic products via the reprocessing of a material in industrial equipment. Natural fiber composites have become more popular in recent years; however, these composites' mechanical behavior remains less well-understood than single polymers’ behavior after recycling. Therefore, the objective
Mat. Res.. Publicado em: 2015-08
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6. Effectiveness of ozonated water in the reprocessing of blood dialyzers
INTRODUCTION: Ozone is a potent antibacterial agent. Because ozone oxidizes organic material, it directly attacks microorganisms resulting in safe, fast and economical sterilization at low temperatures. This study evaluated the efficacy of ozonated water in the reprocessing of dialyzers obtained from a hemodialysis service in São José do Rio Preto. METHODS
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-09
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7. Synthesis of Co-Al-Cl LDH by cathodic material reprocessing from cellular phone batteries
The aim of this paper was the recovering of the cathodic material from discarded lithium ion batteries for obtainment of the lamellar double hydroxides (LDHs) by the co-precipitation method at variable pH in HCl and H2O2 1:1 (v/v) acid solution containing Co and Al (extracted from cathodic material composed of LiCoO2 and aluminum foil). These metals were pre
Mat. Res.. Publicado em: 29/04/2014
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8. Effect of compatibilization and reprocessing on the isothermal crystallization kinetics of polypropylene/wood flour composites
Numerous studies have focused on polymer mixtures aimed at the potential applications of these materials. This work analyzed the effect of polymer reprocessing and the type and concentration of compatibilizer on the isothermal crystallization kinetics of polypropylene/wood flour composites. The composites, which were polypropylene grafted with acrylic acid (
Polímeros. Publicado em: 28/05/2013
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9. Influence of Reprocessing in the formation of functional groups during low density polyethylene aging
In recent years, the interest in polymer recycling has increased. However, in every reprocessing step the material undergoes shear stress and is affected by temperature and oxygen. The aim of this paper is to investigate the influence of multiple extrusion in the generation of functional groups, namely hydroperoxide, carbonyl, and transvinylene. Low density
Polímeros. Publicado em: 09/11/2012
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10. Treatment for PTSD by Eye Movement Desensitization Reprocessing (EMDR): Effects at psychological, cognitive aspects and sleep pattern. / Tratamento para transtorno do estresse pós-traumático com a técnica emdr (eye movement desensitization and reprocessing): seus efeitos nos aspectos psicológicos, cognitivos e na arquitetura do sono
O impacto do estresse pós-traumático pode ser observado nas alterações da cognição, do humor e do padrão do sono. Estes prejuízos ocorrem em graus variáveis que dependem das condições pré-clínicas da saúde física e mental do indivíduo. O objetivo do presente estudo foi investigar esses aspectos em pacientes com transtorno de estresse pós-tra
Publicado em: 2010
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11. Estudo do processamento do combustível UO2-7%Gd2O3 via mistura mecânica com reutilização de rejeitos do processo de fabricação e aditivo de densificação / UO 2 -7%Gd 2 O 3 FUEL PROCESS DEVELOPMENT BY MECHANICAL BLENDING WITH REPROCESSING OF WASTE PRODUCTS AND USAGE OF DENSIFICATION ADDITIVE
In the nuclear fuel cycle, reprocessing and storage of "burned" fuels, either temporary or permanent, demand high investments and, in addition, can potentially generate environmental problems. A strategy to decrease these problems is to adopt measures to reduce the amount of waste generated. The usage of integrated burnable poison based on gadolinium is a me
Publicado em: 2009
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12. Methodology to detect the presence of recyled PET in PET food package / Metodologia para detectar a presença do PET reciclado em embalagens PET para alimentos
Recently, Brazil recorded mechanical recycling of the poly (ethylene terepththalate), PET, the highest in the world, corresponding to about 53 wt %. This success in the recycling industry is due to the wide range of its applications, from textiles to packaging for the food industry. The recycled food-grade packaging could be mixed with virgin resin and repro
Publicado em: 2009