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Itens para a visualização no momento 11-20 of 40
Influência da adição de diferentes oligômeros poliédricos de silsesquioxano (POSS) incorporados na resina epóxi no desempenho à corrosão em substrato de aço de baixa liga
(2016-07-05)
The epoxy resin is one of the matrices most used in manufacturing composites and coatings. It is highlighted in the group of thermosetting materials due to good processability, mechanic behavior and thermal stability. ...
Comportamento do atrito por indentação em nanoescala do aço-carbono AISI 1045 nitretado e pós-oxidado com diferentes nanocamadas de magnetita
(2016-05-18)
The friction phenomenon still does not have an understanding in fundamental terms. Such understanding would help clarifying the frictional energy dissipation during the interaction between atoms of two or more surfaces ...
Produção, dispersão e consolidação de zircônia obtida a partir do tungstato de zircônio
(2016-05-11)
The aim of the present work is to explore the production, dispersion and consolidation of zirconia (zirconium oxide – ZrO2), in its hydrous form, obtained from zirconium tungstate (ZrW2O8) in alkaline medium using temperatures ...
Efeito do pó de casca de noz pecan nas propriedades de bandas de rodagem de pneus
(2019-09-11)
The use of natural organic materials in polymer products has attracted great attention in recent years due to economic, environmental and reduction dependence on petroleum based products. In this context, this work aims ...
Deposição e caracterização de filmes finos de nitreto de titânio para aplicações decorativas
(2015-02-11)
This work studies the deposition of titanium nitride (TiN) thin films on stainless steel AISI 304 substrate for decorative applications. The films studied here are composed of a layer of Ti working as an interlayer between ...
A influência das variáveis de processamento e de diferentes tipos de nanocargas nas propriedades dos compósitos de polipropileno
(2015-08-12)
In this work an evaluation of the thermal and mechanical properties of PP/PP-g-MA composites with 5 and 10 wt% of MMT-Na+, MMT-15A, MMT-30B, CaCO3 and CaCO3-AE nanofillers was performed. Composites were prepared in a ...
Avaliação de diferentes condições de temperatura de molde e hidratação no desempenho de compósitos de poliamida 6 com fibra de vidro
(2018-06-25)
The use reinforced thermoplastics in technical parts, produced by the injection process, has grown, reaching prominence in polymer transformation industry. In this study, two different materials (Lanxess and Technyl) made ...
Caracterização, tratamento e viabilidade de aplicação de argilas provenientes de resíduos de extração de areia na área cosmética
(2017-05-23)
Clays are natural, earthy, fine-grained materials that exhibit plasticity in contact with water. The applicability of the clays in the cosmetic area depends on their chemical and mineralogical composition, but these materials ...
Desenvolvimento e caracterização de compósitos sanduíche para isolamento térmico
(2014-05-29)
A sandwich panel consists essentially of two face sheets and may even have metal reinforcements and a core formed, usually by a cellular polymer. The faces of this type of panel may be joined by a structural adhesive or ...