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Cerâmicas refratárias resinadas: fundamentos, análise crítica e efeito dos agentes grafitizantes e antioxidantes
(Universidade Federal de São Carlos, 2011-08-30)
Improvements on carbon containing refractories are synonymous of benefits for the entire steel industry. In the last years, two particular developments deserve to be highlighted: (i) the report of additives able to graphitize ...
Análise comparativa de fadiga mecânica em compósitos de polipropileno com talco e com nanoargila
(Universidade Federal de São Carlos, 2010-05-17)
Talc is a well known lamellar mineral filler much used for mechanical reinforcement of polypropylene (PP) composites. Mineral nanoclay is also a lamellar filler that is gaining much interest due to its reinforcement effect ...
Comportamento térmico e mecânico de resinas termocuráveis para aplicação como revestimento adesivo em fios esmaltados
(Universidade Federal de São Carlos, 2010-04-01)
Selfbonding magnet wires are composed by two or more polymeric cover layers, being the inner layers thermosetting and the over coat composed of a thermoplastic cross-linkable layer. These wires are used in several magnetic ...
Análise estrutural de filmes finos de hematita produzidos por spin-coating para geração de hidrogênio
(Universidade Federal de São Carlos, 2010-08-06)
Water photolysis at semiconductors is a clean and renewable method for solar energy conversion into hydrogen fuel. Hematite (-Fe2O3) thin films have been presented as a promissory material for water photolysis due ...
Estudo da oxidação superficial do copolímero propileno/etileno durante o tratamento corona e sua influência no comportamento de termosoldagem
(Universidade Federal de São Carlos, 2010-06-23)
Different ethylene-propylene copolymers (Ziegler-Natta and Metallocene) were exposed to corona discharge and analyzed by spectroscopic, morphological and fractionation techniques. Effects of different treatment configurations ...
Utilização da borracha natural no desenvolvimento de elastômeros termoplásticos
(Universidade Federal de São Carlos, 2010-05-28)
Dynamic vulcanization is a process of vulcanization of an elastomer during melt mixing with a thermoplastic. This process results in an elastomeric alloy material with the properties of a conventional thermoset rubber, but ...
Comportamento mecânico da liga Ti-6Al-4V com superfície modificada por laser de femtosegundo para uso biomédico
(Universidade Federal de São Carlos, 2012-02-10)
Stainless steel orthopedic implants are still the most widely used in Brazil
due to their lower cost. There is, however, a tendency to expand the use of
special alloys such as titanium-based, due to clinical advantages ...
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 ...
Nanotecnologia: indicadores tecnológicos sobre os avanços em materiais a partir da análise de documentos de patentes
(Universidade Federal de São Carlos, 2011-09-19)
Nanotechnology is a technological advance of several fields, regarded to be emergent, universal and diffuse field, involving mainly the development of nanomaterials, which can show different properties and behaviors. The ...
Desenvolvimento de nanocompósitos poliméricos biodegradáveis a partir de pectina, amido e nanofibras de celulose
(Universidade Federal de São Carlos, 2010-09-16)
The objective of this project was the preparation of biodegradable films from polymer blends of citrus pectin (PEC) and thermoplastic starch (TPS) and the modification of its mechanical properties by formation of nanocomposites ...