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Now showing items 21-30 of 158
Desenvolvimento de blendas de TPS, PCL E PLA e seus nanocompósitos com nanowhiskers de celulose de gravatá
(Universidade Federal de São Carlos, 2015-12-15)
The objective of this project was the study of polymer blends of thermoplastic starch (TPS), poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) and the extraction of celulose nanowhisker from gravatá (Bromelia balansae) ...
Desenvolvimento de compósito de poliuretano reforçado com nanofibrilas de celulose isoladas de candeia (Eremanthus erythropappus)
(Universidade Federal de São Carlos, 2016-02-26)
Candeia (Eremanthus erythropappus) is an important raw material due to the essential oil that can be extracted from the whole tree. The essential oil contains (-)--bisabolol that has an active principle with pharmacological ...
Turbidimetria in-line na quantificação do tamanho de partícula de misturas poliméricas na extrusão
(Universidade Federal de São Carlos, 2017-10-16)
The morphology of mixtures and polymeric compounds is usually evaluated by off-line characterization methods, which require time for sample preparation and analysis of results. In-line rheo-optical characterization techniques ...
Estudo da curvatura central das placas cerâmicas para revestimentos : a influência da fusibilidade e coeficiente de expansão térmica da camada de engobe nas curvaturas desenvolvidas durante e após a queima
(Universidade Federal de São Carlos, 2017-09-05)
Most ceramic tiles have a slip layer and this has a significant influence on the characteristics of the ceramic tiles. In contrast to this reality, the specialized literature on engobes is sparse and superficial. It is ...
Friction riveting of aluminium alloy 6056-T6 with short-glass-fiber-reinforced polyamide 6 composite
(Universidade Federal de São Carlos, 2017-08-11)
Friction Riveting (FricRiveting) is a relatively new joining technique for metal-polymer hybrid structures. This master thesis was carried out to investigate the FricRiveting process for polyamide 6 reinforced with 30 wt% ...
Desenvolvimento de um equipamento para avaliar propriedades elásticas de cerâmicas refratárias a altas temperaturas pelo método de ressonância de barras.
(Universidade Federal de São Carlos, 2002-09-12)
The knowledge of the elastic properties has been of fundamental
importance for the understanding of the limitation of the useful life of structural
refractory ceramics. Those properties characterize the elastic rigidity ...
Determinação da energia de fratura em materiais cerâmicos em altas temperaturas.
(Universidade Federal de São Carlos, 2005-03-11)
In this work, the main objective was to determine the energy of fracture in
ceramic materials, focused on refractories, at high temperatures and to inquire
the interference of the creep on this measurement. Therefore, ...
Sinterização, caracterização e propriedades de compósitos vidro-minerais para uso como revestimentos
(Universidade Federal de São Carlos, 2017-09-06)
Engineered stones, commonly known in Brazil as quartz surfaces, are
materials used as large tiles for application in architecture and interior
decoration. These materials consist of about 90% by weight of mineral ...
Compósitos e nanocompósitos de polietileno-celulose : efeito do tamanho e da composição da fibra e do processamento nas propriedades óticas e mecânicas dos filmes
(Universidade Federal de São Carlos, 2017-08-31)
In this study an aqueous dispersion of a polyethylene copolymer with a content of 6 wt% of acrylic acid was used as an alternative medium for incorporation of cellulosic fibers (FC), nanofibrils (NFC) and lignocellulosic ...
Desenvolvimento e caracterização de biocompósitos de blendas TPU/PCL com hidroxiapatita para produção de scaffolds bioativos via impressão 3D
(Universidade Federal de São Carlos, 2022-08-02)
The increasing need for biological tissues to treat defects caused by disease or injury has demanded new solutions to provide functional substitutes that supply tissue shortages and suit the needs of each patient. In this ...