Results 61 to 70 of about 78,708 (167)

Polietileno de baja densidad como alternativa para mejorar las propiedades mecánicas de una mezcla asfáltica densa en caliente MDC-19. [PDF]

, 2017
Trabajo de InvestigaciónEl proyecto de investigación se enfoca en evaluar el comportamiento de una mezcla asfáltica modificada MDC-19; por medio del ensayo Marshall a diferentes dosificaciones de desecho de polietileno de baja densidad (PEBD) obtenido ...
Coicué-Duarte, Luis Fernando, Sepúlveda-Salazar, Cristhian Camilo   +1 more
core  

Xylem and Soil Water Extraction via Centrifugation in a Subtropical Urban Green Space

Ecohydrology, Volume 18, Issue 5, July‐August 2025.
ABSTRACT Extracting water from discrete xylem and soil samples for δ18O and δ2H analysis remains a central challenge in ecohydrology. This study evaluates the applicability of the centrifugation method in extracting (a) mobile water with (b) no induced fractionation and (c) low organic contamination.
Erica Almance, Suprina Shrestha, Ricardo Sánchez‐Murillo, Brooke Best, Oscar Rojas‐Carrillo, María Poca, Christian Birkel   +6 more
wiley   +1 more source

Enhancing Polylactic Acid Films With Polyethylene Glycol‐Based Plasticizers: A Reactive Extrusion Approach

Macromolecular Rapid Communications, Volume 46, Issue 14, July 18, 2025.
This study explores the enhancement of polylactic acid (PLA) films through reactive extrusion with polyethylene glycol (PEG)‐based plasticizers and dicumyl peroxide (DCP) as a cross‐linking agent. The process improves mechanical strength, ductility, and thermal stability while reducing plasticizer migration, broadening the potential applications of PLA
Carlos Lazaro‐Hdez, Jaume Gomez‐Carturla, Marina P. Arrieta, Teodomiro Boronat, Juan Ivorra‐Martinez   +4 more
wiley   +1 more source

Exploring the Selective Distribution of PE‐g‐AA in the PA6/AES Blend: Rheological, Mechanical, Thermal, Thermomechanical Properties, and Morphology

Polymers for Advanced Technologies, Volume 36, Issue 7, July 2025.
ABSTRACT Polymeric blends are essential in the plastics processing industry for offering tailor‐made properties such as durability, flexibility, and toughness, and expanding applications. This study investigated, for the first time, the use of polyethylene grafted with acrylic acid (PE‐g‐AA) as a compatibilizer in blends of polyamide 6 (PA6) with ...
Carlos Bruno Barreto Luna, Jessika Andrade dos Santos Nogueira, Fabiano Santana da Silva, Ewerton de Oliveira Teotônio Bezerra, Mariana Alves Henrique, Luiz Antonio Pessan, Renate Maria Ramos Wellen, Edcleide Maria Araújo   +7 more
wiley   +1 more source

Los alginatos: 20000 usos de las algas submarinas

Revista de Química, 2014
Desde la antigüedad, el ser humano ha encontrado recursos de gran utilidad en el mar. Las algas pardas marinas de la clase Phaeophyceae son la fuente de un biopolímero con propiedades muy interesantes, denominado alginato.
Jorge Luis Ayarza-León
doaj  

Preparación de polímeros auto-ensamblables. Nanopartículas micelares [PDF]

, 2016
Actualmente existen numerosas enfermedades que ponen en peligro la salud de la población y en paralelo, han entrado en juego distintas estrategias terapéuticas para combatirlas.
Iglesias Blanco, Nieves
core  

Castor oil polyurethane containing silica nanoparticles as filling material of bone defect in rats Poliuretana de mamona contendo nanopartículas de sílica como material de preenchimento de defeito ósseo em ratos

Acta Cirúrgica Brasileira, 2012
PURPOSE: To evaluate the biologic behavior of the castor polymer containing silica nanoparticles as a bone substitute in diafisary defect. METHODS: Twenty seven male rattus norvegicus albinus wistar lineage were submitted to bone defect filled with ...
Renato Silva Nacer, Rodrigo Ré Poppi, Paulo de Tarso Camilo de Carvalho, Baldomero Antonio Kato da Silva, Alexandre Nakao Odashiro, Iandara Schettert Silva, José Renato Jurkevicz Delben, Angela Antonia Sanches Tardivo Delben   +7 more
doaj   +1 more source

Comparação entre o método da gota pendente e o método da gota girante para medida da tensão interfacial entre polímeros Comparison between the pendant drop and spinning drop method to measure interfacial tension between polymers

Polímeros, 1997
Dois instrumentos, um deles baseado no princípio da gota pendente e o outro baseado no método da gota girante, para medir a tensão interfacial entre polímeros, são apresentados e comparados aqui.
Nicole R. Demarquette, Musa R. Kamal
doaj   +1 more source

Preparación de soportes biomateriales de naturaleza proteica mediante electrohilatura [PDF]

, 2018
La electrohilatura se ha postulado como un método sencillo, versátil y escalable a nivel industrial que permite obtener nanofibras por aplicación de un campo eléctrico de alto voltaje entre la punta de una aguja, donde se deposita una gota de solución de
Carrillo Navarrete, F., Erencia Millán, M., Macanás de Benito, J.   +2 more
core   +2 more sources

The use of waste oils and fats to produce high value products : formulation of printing inks involving used frying oils [PDF]

, 2013
Óleo residual de fritura foi aquecido a 315 ºC na presença de acetato de níquel (II), sendo obtido um polímero viscoso e uma mistura de hidrocarbonetos e compostos orgânicos oxigenados.
Gatti, Thérése Hoffmann, Martins, Guilherme Bandeira Candido, Montenegro, Mateus de Aguiar, Pereira, Ramon C., Suarez, Paulo Anselmo Ziani   +4 more
core   +1 more source