Jane Maria Faulstich de Paiva
Federal University of São Carlos
Izod impact strength testComposite numberUltimate tensile strengthCuring (chemistry)BagasseNuclear chemistryComposite laminatesComposite materialEpoxyThermosetting polymerFlexural strengthCompression moldingMaterials scienceRheologyThermalSISALPhenolPlain weaveLigninCompressive strengthEnvironmental scienceDifferential scanning calorimetryFiberPolymerWaste managementThermal stabilityThermogravimetric analysisDynamic mechanical analysis
56Publications
16H-index
713Citations
Publications 57
Newest
#1Wanderson G. Trindade (USP: University of São Paulo)H-Index: 7
#2Jane Maria Faulstich de Paiva (UFSCar: Federal University of São Carlos)H-Index: 16
Last. Elisabete Frollini (USP: University of São Paulo)H-Index: 38
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Curaua fibers were treated with ionized air to improve the fiber/phenolic matrix adhesion. The treatment with ionized air did not change the thermal stability of the fibers. The impact strength increased with increase in the fiber treatment time. SEM micrographs of the fibers showed that the ionized air treatment led to separation of the fiber bundles. Treatment for 12h also caused a partial degradation of the fibers, which prompted the matrix to transfer the load to a poorer reinforcing agent d...
19 CitationsSource
#1Jane Maria Faulstich de Paiva (USP: University of São Paulo)H-Index: 16
#1Jane M. F. Paiva (USP: University of São Paulo)H-Index: 4
Last. Elisabete Frollini (USP: University of São Paulo)H-Index: 38
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The study and development of polymeric composite materials, especially using lignocellulosic fibers, have received increasing attention. This is interesting from the environmental and economical viewpoints as lignocellulosic fibers are obtained from renewable resources. This work aims to contribute to reduce the dependency on materials from nonrenwable sources, by utilizing natural fibers (sisal) as reinforcing agents and lignin (a polyphenolic macromolecule obtained from lignocellulosic materia...
130 CitationsSource
Carbon fabric/epoxy composites are materials used in aeronautical industry to manufacture several components as flaps, aileron, landing-gear doors and others. To evaluate these materials become important to know their mechanical properties, for example, the tensile strength. Tensile tests are usually performed in aeronautical industry to determinate tensile property data for material specifications, quality assurance and structural analysis. For this work, it was manufactured four different lami...
47 CitationsSource
ABSTRACT In this work, the thermal stability of different polymeric composite laminates used in the aeronautical field was investigated by thermogravimetric (TGA) and dynamic mechanical thermal (DMTA) analyses. Four different types of laminates manufactured by combining two epoxy resin systems (F584 and F155) and two different types of carbon fiber fabric reinforcements were examined. The mass losses of the laminates were evaluated by TGA and the glass transition temperatures (Tg) were determine...
9 CitationsSource
This work shows the evaluation of the glass transition temperature (T g ) by DMTA of three different families of repaired polymeric composites, manufactured with carbon fiber fabric/epoxy F584, glass fabric/epoxy F161 and aramide fabric/epoxy F161, respectively. The composites were laminated by conventional hand lay-up process used in aeronautical industry. Afterwards, simulated damages, scarf type, were made and overlapping layers of F155 epoxy resin prepregs repaired them. The DMTA curves show...
10 CitationsSource
#1Michelle Leali Costa (Aeronáutica)H-Index: 17
#2Mirabel Cerqueira Rezende (Aeronáutica)H-Index: 34
Last. Edson Cocchieri Botelho (UNESP: Sao Paulo State University)H-Index: 26
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Two different carbon/epoxy prepreg materials were characterized and compared using thermal (DSC, TGA, and DMA) and rheological analyses. A prepreg system (carbon fiber preimpregnated with epoxy resin F584) that is currently used in the commercial airplane industry was compared with a prepreg system that is a prospective candidate for the same applications (carbon fiber prepreg/epoxy resin 8552). The differences in the curing kinetics mechanisms of both prepreg systems were identified through the...
14 CitationsSource
#1Michelle Leali Costa (Aeronáutica)H-Index: 17
#2Edson Cocchieri Botelho (UNESP: Sao Paulo State University)H-Index: 26
Last. Mirabel Cerqueira Rezende (Aeronáutica)H-Index: 34
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Carbon/epoxy 8552 prepreg is a thermoplastic toughened high-performance epoxy being used in the manufacture of advanced army material. Understanding the cure behavior of a thermosetting system is essential in the development and optimization of composite fabrication processes. The cure kinetics and rheological behavior were evaluated using a differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA) and a rheometer. Values of the kinetic parameters were obtained from dynamic DSC ...
46 CitationsSource
Thermoplastic composites have been applied in a wide variety of industrial products, showing recently a great potential to be used in aeronautical field. The objectives of this work were to evaluate the fiber/matrix interface of carbon fiber reinforced polypropylene-based matrices after tensile and impact tests and also to compare the mechanical test results of the manufactured laminates. The laminates were prepared by stacking carbon fiber fabric style Plain Weave (CF) and films of four differe...
16 CitationsSource
Four families of carbon fiber reinforced composites (CFRC) used in aeronautical industry were evaluated by flexural and interlaminar shear tests. It is also characterized three families of non-conditioned and conditioned CFRC by compression test. The composites were obtained by hand lay-up process in autoclave by using prepregs based on epoxy matrices (F155 and F584) and carbon fiber fabric reinforcements (PW-"Plain Weave" and 8HS-"Eight Harness Satin"). The F155-epoxy matrix was cured at 121 °C...
46 CitationsSource
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Carbon fiber reinforced polymeric composites are used in aeronautical industry for the manufacture of aircraft components attending tight requirements. Moreover, in service, these components can suffer mechanical damages after low energy impact, provoked by hailstorms, stones, bird impacts, etc. Aiming to minimize these damages, studies suggest modifications on the orientation, reinforcement arrangement and/or in the polymeric matrices of the composite. The present work evaluates the effect of t...