Search
Now showing items 31-40 of 132
Síntese e caracterização de Poli(L-co-DL ácido lático-co-policaprolactona)uretana.
(Universidade Federal de São Carlos, 2018-03-27)
Polyurethanes are applied for many purposes. This wide use is due to the versatility of these polymers, consisting of flexible and rigid segments, whose combination determines their characteristics. Therefore, the main ...
Poliuretanos obtidos de fonte renovável para aplicação em produtos capilares
(Universidade Federal de São Carlos, 2015-03-19)
One of the most remarkable and diverse physical characteristics among human beings - and, thus, fundamental for personal identity - is hair. The search for personal hair care products has been increasing in the last years ...
Construção de equipamento de tratamento de superfície a plasma com fonte DC pulsada para tratamento de nitretação iônica.
(Universidade Federal de São Carlos, 2017-10-06)
Surface treatment techniques such as plasma aided nitriding, although very well consolidated in the industry, must still be studied well and improved. Based on this idea and with the objective of looking for better treatment ...
Moldagem e comparação de propriedades de compósitos de poli(butileno adipato-co-tereftalato) reforçados com tecidos de fibras vegetais
(Universidade Federal de São Carlos, 2019-03-25)
In recent years, the increasing volume of polymer resin production and use has generated environmental problems caused by the post-consumption disposal of these materials, which become huge amounts of waste due to the ...
Estudo da influência da oxidação a plasma nas propriedades tribológicas da liga metálica TI-6AL-4V.
(Universidade Federal de São Carlos, 2019-03-29)
The oxidation thermal or the plasma on the surface of the titanium mean to improve the surface resistance to corrosion and abrasive wear, increase the surface hardness and increase the thickness of the formed oxide. Oxidation ...
Síntese e caracterização de géis para cromatografia de exclusão por tamanho via reticulação de Acetato de Celulose com 4,4' - Difenilmetano Diisocianato (MDI)
(Universidade Federal de São Carlos, 2016-03-28)
The need to obtain biomaterials in order to reduce environmental impacts has been the focus of research groups in recent years, and cellulose, a dominant component at most forms of plants is a promising resource because ...
Síntese e formação de nanoestruturas e filmes de alumina anódica porosa
(Universidade Federal de São Carlos, 2014-01-30)
This paper presents a methodology for obtaining the porous anodic
alumina. anodization of aluminum in acidic electrolytes may specifically result in
different types of oxide films as a barrier type porous type. Anodic ...
Espectroscopia micro-Raman e MEV/EDS aplicados a minerais do Craton São Francisco: evidência da formação de pirita mediada biogenicamente e suas conexões com a origem da vida
(Universidade Federal de São Carlos, 2019-03-19)
The occurrence and isotopic composition of carbonaceous components in ancient rocks are strong evidence of life forms on the Earth's surface since the Eoarchean (> 3.7 Ga). These organic components are found in rocks formed ...
Estudo da deformação plástica severa por junção por laminação assimétrica acumulada (JLAA) do alumínio AA1050
(Universidade Federal de São Carlos, 2018-04-05)
Aluminum alloys are widely used in the automotive and aerospace industries due to some characteristics such as low density and high corrosion resistance, but their low tensile strength restricts a number of applications. ...
Blenda de Polihidróxibutirato(PHB)/Copoliéster Alifático Aromático (AAC) Ecoflex® reforçada com nanofibras de celulose (NFC): análise da resistência mecânica e propriedades químicas
(Universidade Federal de São Carlos, 2016-03-21)
Due to increasing use of polymeric materials in society and the large volume of
of those materials disposal in nature, the biodegradable polymers have
increased interest in research of materials area. The Polyhydroxybu ...