Análise térmica do óleo de linhaça natural e oxidado

Fonseca, Marcelo Marques da; Yoshida, María Irene

doi:10.5935/1809-2667.20090006

Cited by 3 publications

(1 citation statement)

References 11 publications

(3 reference statements)

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“…Among these techniques, RTM (Resin Transfer Molding) is regarded as fast, flexible and capable of producing parts with good surface finishing on both sides. The RTM stands out, which is a technique capable of reaching the imposed quality for the aviation and automotive industry by a structural application of polymer matrix composites [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Influence of Carbon Fiber Addition in Physical-Thermal Properties of Composites Obtained by RTM

Montoro¹

2013

J. Res. Updates Polym. Sci.

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This work aims to study the influence of carbon fibers addition in physical-chemical properties of bicomponent epoxy resin, produced by POLIPOX, in a composite obtained by RTM. Thermal analyses (DSC (Differential Scannig Calorimetry), TGA (Thermal Gravimetric Analysis) and DMA (Dynamic-mechanical Analysis) were performed in order to compare the results and observe the reinforcement influence on the resin properties. Increased glass transition values and degradation temperatures show that fibers cause a reduction in the molecular motion of polymer chains.

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Section: Introductionmentioning

confidence: 99%

Influence of Carbon Fiber Addition in Physical-Thermal Properties of Composites Obtained by RTM

Montoro¹

2013

J. Res. Updates Polym. Sci.

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Characterization of Pentaclethra macroloba oil

Costa

Muniz

Negrão

et al. 2013

J Therm Anal Calorim

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Materiais celulares vítreos obtidos via colagem de gel de uma emulsão de óleo vegetal

et al. 2016

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RESUMOResíduos de vidro podem ser reutilizados para o desenvolvimento de materiais alternativos. Uma opção viá-vel são os materiais celulares para isolamentos térmicos já que, apresentando poros isolados, possuem baixa condutividade térmica, baixa densidade aparente e temperaturas de serviço mais altas que a dos materiais isolantes poliméricos. Neste trabalho, foi preparada uma suspensão aquosa com resíduos de vidro previamente moídos, Ágar-ágar (gelificante) e Emustab® (emulsificante), a qual foi adicionada diferentes frações de óleo de soja (50, 70 e 90% em massa). Subsequentemente, foi realizada a emulsificação do óleo vegetal no líquido da suspensão por meio de agitação em misturador mecânico de alto cisalhamento. Corpos de prova cilíndricos foram produzidos via colagem por gelificação e queimados a 700 °C/30 min. Os resultados mostraram que os vidros celulares obtidos apresentaram porosidade entre 74 e 93% com poros bem definidos e distribuídos e baixas condutividades térmicas (0,05 a 0,09 W/m.K). Tais resultados indicam que os materiais obtidos são potenciais candidatos para atuarem como isolantes térmicos, como por exemplo, painéis para revestimentos utilizados na construção civil. Palavras-chave: Emulsões, vidros celulares, resíduos de vidro. ABSTRACTGlass wastes can be reused for the development of alternative materials. A viable option are the cellular materials for thermal insulation since with isolated pores they show low thermal conductivity, low density and service temperatures higher than those of the polymeric insulating materials. In this work an aqueous suspension was prepared with previously milled glass wastes, agar (gelling) and Emustab® (emulsifier), in which different soy oil fractions (50, 70 and 90 wt% ) were added. Subsequently, the emulsification of the vegetable oil was carried out in the liquid suspension by stirring in a mechanical mixer at high shear. Cylindrical samples were produced by gelation slip casting and fired at 700 °C/30 min. The results showed that the obtained cellular glasses had porosity between 74 and 93% with well-defined and distributed pores and low thermal conductivity (0.05 to 0.09 W/mK). These results indicate that the obtained materials are potential candidates to act as thermal insulators, such as panels for coatings used in construction.

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Análise térmica do óleo de linhaça natural e oxidado

Abstract: Análise térmica do óleo de linhaça natural e oxidado Análise térmica do óleo de linhaça natural e oxidado Thermal analysis of raw and aged linseed oil

Cited by 3 publications

References 11 publications

Influence of Carbon Fiber Addition in Physical-Thermal Properties of Composites Obtained by RTM

Influence of Carbon Fiber Addition in Physical-Thermal Properties of Composites Obtained by RTM

Characterization of Pentaclethra macroloba oil

Materiais celulares vítreos obtidos via colagem de gel de uma emulsão de óleo vegetal

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