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Desenvolvimento de uma formulação elastomérica de EPDM para aplicação em temperaturas elevadas.
(2018-04-19)
The objective of this work was to obtain an EPDM elastomeric formulation for application at high temperatures. The influence of characteristics such as the ethene, propene, and diene content and Mooney viscosity, the use ...
Síntese verde de nanopartículas de prata a partir do extrato do bagaço de Vitis labrusca (cultivar Ives), caracterização e aplicação na desinfecção de efluentes industriais
(2019-03-06)
Traditional methodologies for the synthesis of metallic nanoparticles include the use of toxic chemicals that can have negative impacts on the environment and human health. Thus, a safer alternative to the production of ...
Estudo da ação bactericida em regiões próximas à superfície de titânio e AISI 304 pela incorporação de prata
(2017-07-05)
Contamination by bacterial biofilms has a strong negative impact, especially when given on the surface of prostheses, implants, pins and other medical-surgical devices. In this study metal samples of Titanium cp and AISI ...
Deposição de filme metálico decorativo de AI, por evaporação térmica resistiva, em PVC plastificado com DEHP e modificado por plasma
(2017-07-06)
The surface modification of polymeric materials has led to significant design advances of new industrial applications, besides allowing the replacement of engineering polymers by lower cost materials. Thus, in the present ...
Estudo da nitretação a plasma da liga TI6AL4V ELI para aplicação ortopédica
(2020-03-04)
Titanium-made intra-corporeal implants are still a significant portion of arthroplasty metallic components, due to excellent biocompatibility and low allergenic and toxic features. However, surface modifications are of ...
Desenvolvimento de cimentos á base de silicatos utilizando rochas vulcânicas
(2020-04-22)
Silicate based cements (SBC) are ceramic materials obtained through the reaction between solid silicon and aluminium-rich materials and a strong alkaline solution. Such SBC are produced at temperatures close to ambient and ...
Recuperação de prata metálica de pilhas do tipo botão para a preparação de híbridos de quitosana com propriedades bactericidas
(2020-11-20)
The recovery of metals is an extremely important issue that has attracted the attention of several researchers, both for the environmental and economic concerns. Some metals, such as silver or its derivatives, can be ...
Síntese mecanoquímica nanopartículas de óxido de cobre (II) para a redução catalítica de nitroarenos em meio aquoso
(2020-12-08)
Mechanochemistry was recently cited by the International Union of Pure and Applied Chemistry (IUPAC) as one of the ten chemical innovations with the potential for the development of more sustainable processes. The principle ...