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Now showing items 11-20 of 27
Obtenção de estruturas de nanocompósitos poliméricos híbridos condutores
(Universidade Federal de São Carlos, 2013-03-28)
In this work, hybrid electrical conductive nanocomposites structures with potential to be applied in conductive and electrostatic dissipative devices were obtained. Such structures were produced by combining two types of ...
Modificação química de poli(ácido láctico) com anidrido maleico por processamento reativo
(Universidade Federal de São Carlos, 2014-08-18)
The chemical modification of PLA with maleic anhydride by reactive processing and the extent of reaction and degradation reactions, were studied. Routes of grafting reaction of maleic anhydride in PLA were evaluated. Dicumyl ...
Durabilidade de polietileno em vinhaça quente e fresca em usina de açúcar e álcool
(Universidade Federal de São Carlos, 2013-12-10)
Geomembranes are polymeric sheets widely used in vinasse ponds to prevent contamination of soil. Long-term durability is expected, since failure can result in environmental impact. Smooth black commercial geomembranes and ...
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 ...
Aplicação de estruturas zeolíticas de imidazólio (ZIFs) no desenvolvimento de membranas de matriz mista para separação de gases
(Universidade Federal de São Carlos, 2012-12-13)
Mixed matrix membranes based on a glassy polymer and a zeolite with organic character were developed, in order to evaluate whether the organic character of the ZIF-8 would favor its incorporation in the polymer matrix as ...
Estudo da influência de cargas minerais e amido na biodegradação do PLA
(Universidade Federal de São Carlos, 2010-05-31)
Fossile fuel-produced plastics, once consumed and incorrectly
discharged into the environment, will end up as short-term non-degradable
residues and will contribute to global pollution. For this reason, the use of
polymers ...
Desenvolvimento de nanoblendas poliméricas PMMA/SAN
(Universidade Federal de São Carlos, 2012-08-03)
The motivation for this work was the idea that nanoblends are fundamentally dependent on the high interaction between the phases in the mixture. The strategy adopted in this study was based on the use of two polymers that ...
Desenvolvimento de um colorímetro in-line para o monitoramento da extrusão de polímeros
(Universidade Federal de São Carlos, 2014-01-30)
This work shows the development, construction, validation and application of an in-line colorimeter used for real time color quantification of the melted flow during polymer processing in the extruder. The device uses a ...
Desvulcanização termomecânica contínua de borracha natural da banda de rodagem de pneus automotivos por meio do processo de extrusão em rosca dupla
(Universidade Federal de São Carlos, 2015-09-10)
The Natural rubber is a renewable source material widely used in the manufacture of automotive tire tread. The vulcanization results in a high thermodynamic stability and wide working range materials. However, after the ...
Caracterização experimental e simulação computacional das deformações induzidas na fusão e cristalização do PTFE
(Universidade Federal de São Carlos, 2016-03-07)
Polytetrafluoroethylene (PTFE) has excellent properties such as chemical inertness
and useful mechanical properties at high and low temperatures. After melt,
the PTFE viscosity is so high that the extrusion and injection ...