Avaliação do comportamento tribológico de compósitos poliéster/fibra de vidro utilizando resíduos de poliéster/fibra de vidro e carbonato de cálcio como carga
The use of composite materials and alternative is being increased every day, as it becomes more widespread awareness that the use of renewable and not harmful to the environment is part of a new environmentally friendly model. Since its waste (primarily fiberglass) can not be easily recycled by the...
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| Formato: | Dissertação |
| Idioma: | por |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/15656 |
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| Resumo: | The use of composite materials and alternative is being increased every day, as it becomes
more widespread awareness that the use of renewable and not harmful to the environment is
part of a new environmentally friendly model. Since its waste (primarily fiberglass) can not be
easily recycled by the difficulty that still exists in this process, since they have two phases
mixed, a polymeric matrix thermoset difficult to recycle because it is infusible and phase of
fiber reinforcements. Thermoset matrix composites like Polyester + fiberglass pose a threat
due to excessive discharge. Aiming to minimize this problem, aimed to reuse the composite
Polyester + fiber glass, through the wastes obtained by the grinding of knifes and balls. These
residues were incorporated into the new composite Polyester/Fiberglass for hot compression
mold and compared tribological to composites with filler CaCO3, generally used as filler,
targeting a partial replacement of CaCO3 by such waste. The composites were characterized
by thermal analysis (TGA, DSC and DMA), by the surface integrity (roughness
determination, contact angle and surface energy), mechanical properties (hardness) and
tribological tests (wear and coefficient of dynamic friction) in order to evaluate the effect of
loads and characterize these materials for applications that can take, in the tribological point
of view since waste Polyester + fiberglass has great potential for replacement of CaCO3 |
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