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Desenvolvimento de Compósitos Híbridos de Epóxi/Nanotubos de Carbono/Cargas Minerais e Avaliação das Propriedades Elétricas e Termomecânicas: efeito da viscosidade e do solvente
(Universidade Federal de São Carlos, 2018-09-17)
In this research project, epoxy/carbon nanotubes/mineral fillers hybrid nanocomposites were produced using a high energy sonication process. Moreover, two epoxy resins based on DGEBA with different viscosities were used, ...
Influência das variáveis do processo de mistura na morfologia e propriedades finais de filmes tubulares de nanocompósitos de polietileno de alta densidade
(Universidade Federal de São Carlos, 2006-12-15)
Blown of films is one of the most important processes of polymers for packaging application. The final properties are strongly linked with the morphology developed during the processing. The relationship between process ...
Influência do processamento no comportamento mecânico de nanocompósitos de poliamida 6 com nanosílica
(Universidade Federal de São Carlos, 2015-10-06)
In this study nanocomposites of polyamide-6 (PA-6) reinforced with silica
nanoparticles (SiO2) were prepared in order to promote improved mechanical
properties for engineering applications. The nanoparticles’ surfaces ...
Influência da nanoargila (O-MMT) nas propriedades mecânicas de polipropileno reforçado com fibra de vidro
(Universidade Federal de São Carlos, 2014-07-01)
Hybrid filler reinforced thermoplastics composed with short glass fiber (GF) and different particulate fillers present special interest for engineering applications, as substantial reductions in mechanical anisotropy and ...
Propriedades de armazenagem de hidrogênio de materiais à base de magnésio e ferro preparados por moagem de alta energia e técnicas de deformação plástica severa
(Universidade Federal de São Carlos, 2013-05-24)
In the doctoral research, the hydrogen storage properties of magnesiumiron based materials prepared by high energy ball milling and techniques of severe plastic deformation were studied. The materials were processed by ...
Avaliação do comportamento mecânico de nanocompósito de PEEK/nHA sob curta e longa duração para aplicação como biomaterial
(Universidade Federal de São Carlos, 2012-04-27)
The main objectives of this dissertation were to study the short (tensile and impact) and long-term (fatigue) mechanical behavior of nanocomposites of poly(ether-ether-ketone), PEEK, with nanohydroxyapatite, nHA, for ...
Avaliação de sistemas compatibilizantes nas correlações entre processamento e propriedades térmicas, mecânicas e de transporte em nanocompósitos de blenda HDPE/LLDPE e OMMT
(Universidade Federal de São Carlos, 2012-04-11)
Polyolefin nanocomposites have attracted significant technological and scientific interest due to the possibilities of improvements in thermal, mechanical and barrier properties. However, the hydrophobic nature of polyolefins ...
Influência da geometria da nanocarga na estruturação, orientação e propriedades de filmes tubulares de nanocompósitos de PA6
(Universidade Federal de São Carlos, 2012-06-13)
The structure and morphology of polymers and consequently their properties are dependent on the processing conditions. During the blown film process, high shear and elongational flows can induce a preferred orientation of ...
Processamento e estudo das propriedades de filmes e peças injetadas de nanobiocompósitos de nanocristais de celulose e matrizes biodegradáveis
(Universidade Federal de São Carlos, 2014-04-04)
This study aimed at evaluating the potential of application of cellulose nanocrystals as reinforcing elements of biodegradable polymeric matrices, in the films and injection molded pieces applications. Two polymeric matrices ...
Desenvolvimento e caracterização de nanocompósitos de blendas de PA6/AES compatibilizadas com copolímero acrílico
(Universidade Federal de São Carlos, 2014-03-31)
Toughened polyamide 6 (PA6) nanocomposites were obtained by incorporation of acrylonitrile-EPDM-styrene (AES). As compatibilizing agents was used the copolymer methyl methacrylate-anhydride (MMA-MA). The effect of the ...