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Monitoramento em tempo real da morfologia na extrusão da blenda polimérica polipropileno/ nylon 6.
(Universidade Federal de São Carlos, 2006-09-01)
The aim of this work is to assess in real time the morphological
parameters of polypropylene and polyamide 6 blends during the extrusion
process. An optical detector based on the visible light transmitted and extinction
principle ...
Modificação do Poli(hidroxibutirato) PHB com nucleantes e com o copolímero (etileno-co-acetato de vinila) - EVA
(Universidade Federal de São Carlos, 2008-03-19)
In this work, we sought to modify PHB, processing it in the melted state, and to
evaluate the effect of the modifications on its mechanical properties and
biodegradation characteristics. The following systems were therefore ...
Preparação de argilas organofílicas para o desenvolvimento de nanocompósitos a partir de compostos de PVC plastificado
(Universidade Federal de São Carlos, 2009-12-15)
Nanocomposites of Plasticized PVC with organoclays have a large potential to improve the thermal resistance of PVC as well as its flame retardancy. However, a great problem in the production of PVC nanocomposites is the ...
Nível de degradação termomecânica e coleta de compostos orgânicos voláteis durante a extrusão de polímeros
(Universidade Federal de São Carlos, 2008-12-01)
In this work we studied the thermomechanical degradation and volatile organic compound (VOC) generated during extrusion of the HDPE, PP, and PS. The degradation processes occurred during extrusion were analyzed by a new ...
Desenvolvimento de perfis extrudados de compósitos de polietileno de alta densidade com farinha de madeira
(Universidade Federal de São Carlos, 2009-12-17)
Polymer profiles extrusion shows some peculiarity due to the flow behavior of these materials during the processing. On the other hand, the profile die design and tooling has been more a result of professional s expertise ...
Desenvolvimento e caracterização de blendas PHBV/Ecoflex® e suas modificações com amidos
(Universidade Federal de São Carlos, 2008-05-30)
Plastics materials produced from petrochemicals are widely used due to
their versatility, mechanical properties and low cost, but they cause environmental
impact as a consequence of the accumulation of great amount of ...
Obtenção de nanocompósitos de poliamida 6 / argila nacional com diferentes agentes compatibilizantes
(Universidade Federal de São Carlos, 2005-09-01)
The formation of nanocomposites well exfoliated is dependent of several factors, like organic treatment with appropriate ammonium quaternary salts to promote adequate interaction between polymer and clay. The objective of ...
Avaliação de sistema estabilizante para cobertura de cabos aéreos em XLPE.
(Universidade Federal de São Carlos, 2005-08-03)
Overhead energy lines with covered conductors are increasingly used in the 15 kV distribution systems in Brazil. The advantages are, among others, reduced distances between phases, no disruptions due to conductor ...
Nanopartículas de Fe3O4 funcionalizadas e nanocompósitos de base epóxi
(Universidade Federal de São Carlos, 2015-12-17)
The use of metal oxide nanoparticles in nanocomposite has provided new
and interesting properties and is one of the most promising areas in composites.
Compatibility between these nanoparticles and polymer matrix is the ...
Sistemas nanoestruturados condutores baseados em nanocompósitos poliméricos condutores e mantas eletrofiadas condutoras
(Universidade Federal de São Carlos, 2013-05-10)
In this work its was investigated the influence of the processing on the electrical and dielectric properties of nanostructured polymeric systems obtained by differents techniques. The morphology and structure of the ...