Polyamide Fiber
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Crashworthiness and Impact Energy Absorption Study Considering the CF/PA Commingled Composite Processing Optimization
The processing of the thermoplastic composites can cause matrix thermo-oxidative degradation. Understanding the level of thermo-oxidative degradation, as well as the thresholds of temperature and processing time, allows the manufacture of high performance composites with higher crashworthiness. This study evaluated the matrix thermo-oxidative degradation by
Mat. Res.. Publicado em: 22/01/2018
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2. Physical, Chemical and Morphological Characterization of Polyamide Fabrics Treated with Plasma Discharge
In this work, physical, chemical and morphological modifications of three different polyamide 6.6 (PA6.6) fabrics were investigated using double barrier dielectric (DBD) plasma treatment. Several techniques of characterization were used to study the effects caused by the interaction between plasma discharge and polyamide fabrics, such as: contact angle, wate
Mat. Res.. Publicado em: 11/05/2017
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3. Influência da temperatura de molde associada com o uso de fibra de vidro nas propriedades mecânicas e térmicas do nanocompósito (PA6/FV/MMT)
ABSTRACT This work describes the second of a series of studies of the effects of injection molding conditions on the mechanical and thermal properties of Polyamide 6/Glass Fiber/Montmorillonite (PA6/GF/MMT) composites and was motivated by the lack of information about how the processing variables influence on the properties of three-phase composites containi
Matéria (Rio J.). Publicado em: 11/05/2017
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4. Post-consumer polyethylene terephthalate and polyamide 66 blends and corresponding short glass fiber reinforced composites
Blends of bottle-grade post-consumer polyethylene terephthalate (PET) and virgin polyamide 66 (PA66), over the complete composition range, and corresponding short glass fiber (SGF) reinforced composites were investigated. These materials were compounded in a twin-screw extruder and injection molded as standard specimens. Morphological investigation of the co
Mat. Res.. Publicado em: 16/09/2014
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5. Crossflow microfiltration of sugarcane juice: effects of processing conditions and juice quality
Sugarcane juice with passion fruit pulp was clarified using microfiltration under different T (temperature), P (pressure), and V (tangential velocity). The effects of these processing parameters were evaluated applying a rotational central composite experimental design (RCCD) and response surface methodology (RSM). The tests were performed at a filtration pi
Food Sci. Technol. Publicado em: 2014-03
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6. Desenvolvimento de união de multimateriais através de rebitagem por injeção (Injection Clinching Joining) / Development of multimaterial joints through injection clinching joining
Multimaterial structures are currently a technologically attractive field of research. The growing use of polymer composites replacing metals in structures aiming for weight and emission reduction is part of the motivation of this study. The currently used techniques adhesive bonding and mechanical fastening are limited in certain aspects, opening a path for
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2011
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7. Processamento de nanofibras de poliamida 66 / nanotubos de carbono de múltiplas camadas por eletrofiação / Processing and characterization of polyamide 66 / MWNT nanocomposite by electrospinning
Nanocomposite fibers with polymer matrix have many applications, such as protective clothing, filtration and artificial blood vessels. Many of these applications require that the fiber has nanometric size due to some properties, as high surface area and high aspect ratio. In this research, aligned and non-aligned nanocomposites of polyamide 6,6 with multiwal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/03/2010
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8. Avaliação comparativa de materiais poliméricos em coletores de admissão para aplicações de motores diesel / Comparative evaluation of polymeric materials on intake manifold for diesel engines application
In the modem world where we live, due to incited competition in the automobilist market, emerges the necessity an engine much more economic and il is worsen by the international competition with the Asian markets. Thus, accelerate not only the race for the raise of the quality and cost reduction of products, but also for the environment topics, such as the r
Publicado em: 2010
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9. Electrospinning and characterization of polyamide 66 nanofibers with different molecular weights
Polyamide 66 (PA66) nanofibers of different molecular weights were obtained by electrospinning of formic acid solutions. An ionic salt, NaCl, was also added to the solutions to increase the conductivity. PA66 concentrations between 15-17 wt.(%)/v and electrical fields between 2.0 and 2.5 kV/cm were the best conditions to produce the smallest nanofibers; howe
Materials Research. Publicado em: 2009-06
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10. Estudo comparativo entre materiais metálicos e compósitos poliméricos para aplicações mecânicas na indústria automobilistica
Aluminum and plastic composites used in the automotive industry is a reality and increases in new projects. Materials and components are responsible for the most part of vehicle costs and the materials mix is changing continually due to light-weight solutions to reduce vehicle costs and weight. Aluminum and plastics composites are responsible for these solut
Publicado em: 2009
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11. Estudo do efeito da radiação ionizante sobre as propriedades da poliamida 6 com reforço de fibra de vidro / Study of the effect of ionizing radiation on properties of polyamide 6 with fibreglass reinforcement
É cada vez maior a utilização de polímeros reforçados com fibra de vidro no mercado nacional. Entre eles utiliza-se a poliamida 6 que apresenta ótima resistência à tração, ao impacto e à absorção de umidade comparada à poliamida 6 sem reforço de fibra de vidro, sendo atualmente utilizada na indústria automobilística em peças sob o capô, em
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2007
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12. Study of lineal and non lineal viscoelastic behavior of PP/PA-6 polymer blends compatibilized or no. / Estudo da viscoelasticidade linear e não linear de misturas de PP/PA-6 compatibilizadas ou não.
Rheological and morphological behaviour of polypropylene and polyamide polymer blend was studied. The values of interfacial tension were obtained between 10mN/m and 13mN/m. The interfacial tension decreased in 87% for compatibilized blend. Morphology analysis for linear viscoelastic regime shows dispersed drop diameter between 1,5µm and 20µm. The diameter
Publicado em: 2006