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Now showing items 31-40 of 93
Panorama das atividades de extensão do departamento de engenharia de materiais da UFSCar e oportunidades para sua curricularização na graduação
(Universidade Federal de São Carlos, 2023-01-23)
Guidelines for service-learning’s curricular use in graduation ensures 10% of the
total student workload of undergraduate courses to service-learning activity. This
policy has potential to offer benefits in mutual ...
Influência do tratamento superficial da nanocarga nas propriedades mecânicas de curta e longa duração de um nanocompósito de PEEK/nHA
(Universidade Federal de São Carlos, 2014-09-15)
In this dissertation the mechanical properties of short and long term of
PEEK/nHA nanocomposites with potential application as orthopedic implants
were studied. The nanohydroxyapatite (nHA) was surface-treated with ...
Avaliações e correlações das propriedades reológicas, mecânicas e de cinética de cristalização de polímeros utilizados em processo de impressão 3d por FFF
(Universidade Federal de São Carlos, 2018-09-03)
Recently there has been an interest increase in the additive manufacturing process (AM), Fused Filament Fabrication (FFF) is one of the most commercially important extrusion-based process. The success of this technology ...
Compatibilização química em compósitos de PLA reforçados com fibras de sisal
(Universidade Federal de São Carlos, 2018-07-13)
Even though poly(lactic acid) (PLA) is fragile under impact and has low toughness, the polymer stands out for its stiffness and high tensile strength. This polymer is an interesting material not only for short-term ...
Blendas de poli(tereftalato de etileno) e poliamida 66 modificadas com sepiolita
(Universidade Federal de São Carlos, 2018-03-02)
Blends of recycled bottle-grade polyethylene terephthalate and virgin polyamide
66 (PET/PA66) with different compositions (75/25, 50/50, 25/75) unfilled and filled
with 5 phr of sepiolite clay (Sep) were investigated. ...
Nanocompósitos de poliuretano comercial e nanopartículas híbridas de núcleo Fe3O4 funcionalizado com capa orgânica de Poli(1,4-Butanodiol)
(Universidade Federal de São Carlos, 2018-02-23)
The use of inorganic nanoparticles in polymer nanocomposites allows gain in mechanical resistance and new properties. However, the incorporation of organic layer functionalized nanoparticles alters the material’s properties ...
Caracterização dos materiais lignocelulósicos da castanha do Brasil (Bertholletia excelsa), preparação e caracterização de seus compósitos com polipropileno
(Universidade Federal de São Carlos, 2017-05-31)
This research aimed to characterize the lignocellulosic materials of the
Brazil nut (Bertholletia excelsa) extraction process and to develop biocomposites
incorporating these materials with homopolymer and copolymer ...
Caracterização termo-óptica quantitativa de fibras de poliéster e seus compósitos com polietileno
(Universidade Federal de São Carlos, 2015-03-08)
The work herein aims at investigating the thermo-optical behavior of polyethylene terephthalate and its composites with polyethylene, in real time, by means of an optical module recently developed in our research group. ...
Morfologia de ionômero E/MMA-Na+ proposta por técnicas termo-ópticas
(Universidade Federal de São Carlos, 2017-10-19)
The DSC low temperature endothermic peak shown by sodium neutralized poly(ethylene-random-methacrylic acid) (E/MAA) ionomers has been shown here to be the result of two different and dependent morphological transformations, ...
Analysis of crack propagation in the wedge splitting test via digital image correlation and finite element analyses
(Universidade Federal de São Carlos, 2019-02-19)
Castable refractories are applied in dangerous environments in which it is unpractical to avoid crack initiation. Therefore, their microstructure is usually complex in order to hinder crack propagation by toughening ...