Thermoset
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Evaluation of Dynamic Mechanical Properties of Fique Fabric/Epoxy Composites
The fique is a plant typical of the Colombian Andes, from which relatively common items are fabricated. One of these is woven fabric extensively applied in sackcloths. The mechanical strength of fique fabric have motivated recent investigations on possible reinforcement of polymer matrix composites. For this purpose its thermo-mechanical behavior was unveile
Mat. Res.. Publicado em: 14/10/2019
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2. Avaliação da utilização da pós cura nas propriedades térmicas e mecânicas de um sistema epóxi de cura à temperatura ambiente
RESUMO Neste trabalho, uma resina epóxi de cura a temperatura ambiente foi submetida a ciclos térmicos de pós cura para verificar as alterações nas propriedades térmicas e mecânicas finais do material. As amostras foram obtidas por vazamento em molde metálico e os ciclos de pós cura foram realizados a 75°C, 90°C, 110°C por uma hora e um ciclo de
Matéria (Rio J.). Publicado em: 16/09/2019
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3. Análisis comparativo de las propiedades mecánicas de un material compuesto reforzado con fibras de carbono y las de su matriz polimérica de resina epóxica
ABSTRACT In recent years composite materials have been developed for different applications in engineering areas. This paper first presents the tensile properties of a polymer, in this case an epoxy resin, to be used as the matrix of a fiber reinforced composite material. A study of the mechanical properties is presented, which was carried out by performing
Matéria (Rio J.). Publicado em: 19/07/2018
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4. Application of Short Fibers Reinforced Composites in Power Transmission Coupling
Abstract In this study the use of short glass, carbon and hybrid glass-carbon fibers reinforced polymeric composites in power transmission coupling is investigated. The presented work is generalized to thermoplastic and thermoset polymeric matrix composites. The effects of the constituents weight percentages, and average fibers length on the composite tensil
Lat. Am. j. solids struct.. Publicado em: 2017-10
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5. Development of a Simple Dielectric Analysis Module for Online Cure Monitoring of a Commercial Epoxy Resin Formulation
The final properties of thermosets are strongly dependent on their curing process. Therefore, closely monitoring this process is necessary to assure the manufacturing quality and productivity. In this way, the aim of this study is to develop a simple dielectric module for monitoring and optimizing the industrial curing cycle of thermosets. The module is base
Mat. Res.. Publicado em: 27/07/2017
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6. Cardanol-based thermoset plastic reinforced by sponge gourd fibers (Luffa cylindrica)
Abstract A growing global trend for maximum use of natural resources through new processes and products has enhanced studies and exploration of renewable natural materials. In this study, cardanol, a component of the cashew nut shell liquid (CNSL), was used as a building block for the development of a thermosetting matrix, which was reinforced by raw and mod
Polímeros. Publicado em: 04/03/2016
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7. Finite Element Analysis of Pilot’s Helmet Design Using Composite Materials for Military Aircraft
ABSTRACT The objective of this research was to design pilot helmets and to perform analysis of designed ballistic helmet against impact strength of bullet in Solidworks and Laminator software. The material used for construction of the helmet is fiber reinforced polymer matrix composite in which polymer matrix is made of nylon, a thermoset resin, and the fibe
J. Aerosp. Technol. Manag.. Publicado em: 2016-03
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8. Treatments of jute fibers aiming at improvement of fiber-phenolic matrix adhesion
Composites based on a thermoset phenolic matrix and jute fibers were prepared and characterized. The fibers were alternatively treated with ionized air or aqueous alkaline solution (mercerization) with the aim of introducing changes in the morphology, dispersive component of surface free energy, γS D (estimated by Inverse Gas Chromatography, IGC) and the ac
Polímeros. Publicado em: 2014-08
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9. Cerâmicas refratárias resinadas: fundamentos, análise crítica e efeito dos agentes grafitizantes e antioxidantes / Resin-bonded refractories: fundamentals, critical analysis and the effect of the graphitizing agents and antioxidants
Improvements on carbon containing refractories are synonymous of benefits for the entire steel industry. In the last years, two particular developments deserve to be highlighted: (i) the report of additives able to graphitize the carbon fixed by the thermoset polymers used as refractory binders and (ii) the induction, by combining antioxidants, of in situ gr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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10. Bagaço de cana de açúcar como reforço de matrizes termorrígidas baseadas em macromoléculas de ligninas / Sugarcane bagasse as reinforcement of thermoset matrices based on lignin macromolecules
As resinas do tipo fenólica são amplamente utilizadas devido à sua diversidade de aplicações. Considerando as inúmeras vantagens desta resina (estabilidade térmica e dimensional, alta resistência à chama, etc.), este trabalho teve como um dos objetivos melhorar as propriedades mecânicas do termorrígido fenólico, pois estes são frágeis quando n�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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11. Estudo para fabricação de refletores automobilísticos utilizando um material compósito termofixo e um material termoplástico / Study for manufacturing automobile reflectors using a thermoset composite material and a thermoplastic material
Na montagem de um farol automobilístico são utilizados diversos materiais, tais como insertos metálicos nas fixações, vidros nas lâmpadas, materiais poliméricos nas lentes, carcaças, molduras, vedações e refletores, além de vernizes, tintas, película de metal para reflexão do feixe luminoso. Há cerca de quatro décadas foi iniciada a confecçã
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2010
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12. Synthesis of a boron modified phenolic resin
Abstract: Phenolic resin has long been used as matrix for composites mainly because of its flame retardant behavior and high char yield after pyrolysis, which results in a self supporting structure. The addition of ceramic powders, such as SiC and B4C, as fillers to the phenolic resin, results in better thermo-oxidative stability, but as drawbacks, it has po
J. Aerosp. Technol. Manag.. Publicado em: 2010-08