Browsing PPG - Engenharia e Ciência dos Materiais by Submit Date
Now showing items 1-20 of 204
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Desenvolvimento de uma rota alternativa via processamento no estágio sólido para a reciclagem da liga de alumínio contendo lítio, aa2050
(Universidade Federal de São Paulo (UNIFESP), 2016-01-04)This study aimed the development of an alternative route for the recycling of aluminum alloy AA2050 machining chips. The route is based on powder metallurgy technique: high energy ball milling and compaction by direct hot ...
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Estudo de amino-álcoois como inibidores de corrosão para aço api 5l x70 na presença do ácido naftênico ciclopentacarboxílico
(Universidade Federal de São Paulo (UNIFESP), 2016-12-14)Amines have been widely used as corrosion inhibitors due to the protective nature, simplicity of application and attractive cost. The main areas that make use of amines are in civil construction, in cement formulations for ...
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Preparação e caracterização de nanocompósitos estruturais baseados em poli(3-hidroxibutirato-co-hidroxivalerato) e nanopartículas de dióxido de titânio para o emprego em engenharia tecidual
(Universidade Federal de São Paulo (UNIFESP), 2015-10-30)Preparation and characterization of structural nanocomposites based on poly (3-hydroxybutyrate-co-hydroxyvalerate) and titanium dioxide nanoparticles for use in tissue engineering In this work it was developed nanocomposites ...
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Influência da técnica de mistura nas propriedades de um cimento de fosfato de cálcio
(Universidade Federal de São Paulo (UNIFESP), 2016-12-02)Calcium phosphate cements (CPC) are versatile biomaterials with excellent features for bone replacement that can be used to mimic the natural bone tissue. These materials, despite all their qualities, present great variability ...
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Otimização das propriedades e da injetabilidade de um cimento de fosfato de cálcio
(Universidade Federal de São Paulo (UNIFESP), 2014-11-25)World population is getting older and, as a direct consequence, the cases of osteoporosis and bone mass loss are growing fast. Nevertheless, problems related to bone tissue are not exclusivity of old-aged people since there ...
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Nanocompósitos formados por nanotubos de carbono verticalmente alinhados e polidimetilsiloxano (desenvolvimento e caracterização elétrica)
(Universidade Federal de São Paulo (UNIFESP), 2015-09-03)Nanocomposites formed by polydimethylsiloxane and carbon nanotubes were produced. Some relationships have been established between mechanical deformation and piezoresistive and capacitive effects through experiments involving ...
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Produção de hidrogéis de quitosana reforçados com nanocristais de celulose e reticulados com genipina visando aplicações na área médica
(Universidade Federal de São Paulo (UNIFESP), 2015-01-04)In this this work, hydrogels of chitosan (poly [? (1- 4) 2-amino-2-deoxy-Dglucopyranose]), crosslinked with genipin, and reinforced with cellulose nanocrystals (CNC), were developed and characterized aiming to future medical ...
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Desenvolvimento de curativo a base de quitosana e gelatina contendo óleo de copaíba para tratamento de queimados
(Universidade Federal de São Paulo (UNIFESP), 2015-08-21)The importance of skin lesions has suggested studies for obtaining biomaterials in order to reduce healing time, enhance the healing quality and promote patient comfort, especially for the relief of pain. Healing, ...
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Estudo do comportamento mecânico e microestrutural da superliga inconel 718 após tratamento térmico de duplo envelhecimento
(Universidade Federal de São Paulo (UNIFESP), 2015-05-13)The aim of this work was the study of the double aging heat treatment on the creep behavior of superalloy Inconel 718 comparing on the alloy without treatment (homogenized). The heat treatment was double aging, following ...
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Engenharia de cristais aplicada a cocristais e cristais modificados de nevirapina para incremento da dissolução do fármaco
(Universidade Federal de São Paulo (UNIFESP), 2016-02-26)Crystal engineering applied to co-crystals and modified crystals of Nevirapine in order to increase the drug dissolution Crystal engineering is the science responsible to study crystalline forms and to understand the ...
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Desenvolvimento de processo de deposição via plasma térmico de materiais cerâmicos e metálicos em substrato de liga de titânico para aplicações aeroespaciais
(Universidade Federal de São Paulo (UNIFESP), 2016-11-22)The thermal barrier coating (TBC) is composed of a corrosion and oxidation resistant metallic coating (MCrAlY, onde M=Co, Ni), and an insulating ceramic coating (usually ZrO2 7% Y2O3, or 7% YSZ). The TBC is used on most ...
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Propriedades e parâmetros de escala de filmes de DLC depositados sobre aço ferramenta usando sistema PECVD modificado com cátodo adicional
(Universidade Federal de São Paulo (UNIFESP), 2016-11-11)The research of nanostructured super hard materials in the form of coatings or thin films with advanced properties has enabled the development of new studies providing important scientific and technological developments ...
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Estudo fractográfico de compósitos de fibra de carbono/matrizes de prolipropileno-polietileno submetidos a ensaios estáticos de tração e compressão
(Universidade Federal de São Paulo (UNIFESP), 2015-08-10)This work shows the fractographic study of fracture surfaces resulting from static loadings in tension and compression of thermoplastic composites based on polypropylene (PP) and poly(propylene-co-ethylene) (PP-PE) reinforced ...
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Estabilidade de comprimidos de liberação controlada baseados em hidroxietilcelulose
(Universidade Federal de São Paulo (UNIFESP), 2016-02-25)Cellulose derivatives are polymers commonly used for drug delivery. In this work one of these derivatives, the hydroxiethylcellulose has been applied in the formulation of compressed tablets for controlled release purposes. ...
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Síntese e caracterização da poli (acrilonitrila-g-lignina) via polimerização em solução visando a obtenção de materiais carbonosos
(Universidade Federal de São Paulo (UNIFESP), 2016-02-16)Considering the growing scientific and industrial interests involving the incorporation of organic materials from renewable sources to produce hybrids polymers, the present work aims to synthesize this class of organic/organic ...
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Estudo da conversão de lignina kraft em carvões
(Universidade Federal de São Paulo (UNIFESP), 2016-08-29)Biomass is a renewable resource whose importance is growing every day, given the environmental and possible oil crisis concerns. Thus, the interest in optimizing its use is a current challenge. In this context, lignin is ...
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Caracterização físico-química e estrutural de blendas de lipídeos usados em terapia gênica
(Universidade Federal de São Paulo (UNIFESP), 2015-03-30)In this work we report the preparation and characterization of cationic liposomes and Langmuir monolayers of the lipid blend EPC/DOTAP/DOPE (2:1:1 mol %) associated with hyaluronic acid (HA) of 16 kDa, for the development ...
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Adaptação e otimização de um sistema micropulling-down para o crescimento de fibras monocristalinas
(Universidade Federal de São Paulo, 2015-01-29)The advances in Science has led to a technological progress in the last few decades. This has motivated the interest in the development of materials with applicable characteristics for miniaturized systems. It is known ...
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Desenvolvimento de nanocompósitos de poli(3-hidroxibutirato-co-3-hidroxivalerato) com nanopartículas de prata
(Universidade Federal de São Paulo (UNIFESP), 2016-02-25)The utilization of biodegradable polymers from natural sources has been attracting attention from the academy and industry due to environmental issues. Among biodegradable polymers, PHBV (poly(3-hydroxybutyrate-co-3-hydr ...
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Desenvolvimento de compósitos de resina epóxi/não tecido utilizando refugo da indústria de não tecido
(Universidade Federal de São Paulo (UNIFESP), 2016-06-20)Non-wovens are formed by extrusion processes and may be produced in an economical manner which are used in disposable products. Medical and hospital sector and packaging sectors are the largest consumers of non-wovens. The ...
