Recycled Pet
Mostrando 13-24 de 27 artigos, teses e dissertações.
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13. Alternativas para o Reaproveitamento de Rejeitos Industriais de Poli(tereftalato de etileno) Reciclado / Alternatives for recycling of industrial wastes of recycled poly (ethylene terephthalate)
The production of nonwoven fabrics (NWF) by extrusion process from recycled poly(ethylene terephthalate) (PET) is an interesting way for polymer recycling used by industry which to allow conciliate economic viability with environmental benefits. However, during extrusion step, a fraction of material is lost due to equipment clogging or others factors, leadin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2010
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14. Fracture mechanics of polymer mortar made with recycled raw materials
The aim of this work is to show that industrial residues could be used in construction applications so that production costs as well as environmental protection can be improved. The fracture properties of polymer mortar manufactured with recycled materials are investigated to evaluate the materials behaviour to crack propagation. The residues used in this wo
Materials Research. Publicado em: 2010-12
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15. Evaluation of the feasibility of reintegrating post-consumer PET into production / Avaliação da viabilidade de reintegração de resíduos de PET pós-consumo ao meio produtivo
Entre os materiais presentes nos resíduos sólidos domiciliares, os resíduos poliméricos pósconsumo representam cerca de 27% do volume total da coleta convencional, segundo Matos (2006), com o agravante da degradação lenta, comprometendo a vida útil dos aterros sanitários e poluindo o meio urbano. Dos resíduos poliméricos, destaca-se o Poli (tereft
Publicado em: 2009
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16. Avaliação do uso de poli(tereftalato de etileno) (PET) como matriz de imobilização de cinzas de incineradores
Industrial hazardous wastes must receive appropriate treatment to ensure a safe disposal to humans and environment. One of the techniques adopted for this purpose is the stabilization/solidification in polymer matrices. This paper evaluated the use of recycled polyethylene terephthalate as an incorporation matrix of incinerator ash. The polymer and the ash w
Química Nova. Publicado em: 2009
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17. Methodology to detect the presence of recyled PET in PET food package / Metodologia para detectar a presença do PET reciclado em embalagens PET para alimentos
Recently, Brazil recorded mechanical recycling of the poly (ethylene terepththalate), PET, the highest in the world, corresponding to about 53 wt %. This success in the recycling industry is due to the wide range of its applications, from textiles to packaging for the food industry. The recycled food-grade packaging could be mixed with virgin resin and repro
Publicado em: 2009
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18. Oyster spat recruitment in Espírito Santo State, Brazil, using recycled materials
Este trabalho avaliou a eficiência de quatro tipos de coletores de sementes no recrutamento de ostras Crassostrea sp., em cinco pontos do estuário do Rio Benevente, município de Anchieta, e em duas ilhas no município de Piúma, estado do Espírito Santo. Foram utilizados quatro tipos de coletores: 1-conchas de ostras, 2- garrafas PET, 3-tiras de pneu e 4
Brazilian Journal of Oceanography. Publicado em: 2008-12
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19. Estudo da viabilidade da aplicação de PET reciclado como agente de contenção de areia em poços de petróleo / Study of the viability of the application of recycled PET as sand control agent in oil wells
This work analyses the viability of applying recycled poly(ethylene terephthalate), PET, as sand control agent, using virgin PET and poly(methylene oxide), POM, for comparison means. The polymer samples were characterized by carbon-13 magnetic nuclear resonance (13C-NMR), differential scanning calorimetry (DSC), thermal gravimetric analysis (TG), scanning el
Publicado em: 2008
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20. Abrasão, desgaste e atrito sob deslizamento de recobrimentos preparados por aspersão térmica a partir de PET pós-consumo
This work intends to contribute to the development of polymer coatings by combustion thermal spraying of recycled poly(ethylene terephthalate) PET for the improvement of the tribological behavior of carbon steel piping. Coatings with high wear resistance may reduce corrosion, the formation of organic and inorganic deposits, and the friction of the transporte
Publicado em: 2008
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21. Selection criteria for recycled polyolefins from urban wastes by using TG analysis
The thermal behavior of a mixture of recycled polyolefins (PE/PP mix), variously colored recycled polyolefins, recycled polyolefin blends and recycled polyolefin/PET blends was analyzed by thermogravimetry. Atmospheres of nitrogen and synthetic air were used to compare the effects of inert and oxidative medium. Four characteristic temperatures, T1, T2, T3 an
Materials Research. Publicado em: 2007-12
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22. Desenvolvimento e validação de metodo analitico para a determinação de contaminantes volateis provenientes de embalagens de PET (polietileno tereftalato) e sua aplicação em PET pos-consumo. / Development and validation of an analytical method for the determination of volatile contaminants from PET (polyethylene terephtalate) packaging and its application in PET post-consumption.
The main approach of the present work was the development and validation of an analytical method for the determination of volatile contaminants from polyethylene terephthalate (PET) packaging, using the headspace dynamic concentration technique in the extraction stage and chromatographic techniques for identification and quantification. The method was valida
Publicado em: 2007
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23. Processamento de compósitos de poli (tereftalato de etileno) reciclado reforçado com fibras de vidro
In this work, flake and post-condensed PET composites of different glass fiber contents (0, 20, 30 and 40%) were prepared. Tow kinds of fibers were employed: one fiber having an amino silane-based surface treatment and another one having an epoxi silane-based surface treatment. The composites were extruded in a single-screw extruder with a barrier double-fli
Publicado em: 2007
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24. Recycled bottle-grade poly(ethylene terephthalate) based nanocomposites with organo-modified montmorillonite / Nanocompositos de poli (tereftalato de etileno) grau garrafa reciclado e montmorilonita organofilica
O estudo de nanocompósitos de poli(tereftalato de etileno) reciclado (PETr), principal objeto deste trabalho, foi dividido em duas partes. Preliminarmente, foram preparados nanocompósitos de PETr, com diversos teores (1, 3 e 5% em massa) de montmorilonita organicamente modificada (MMTm), pelo método de intercalação no estado fundido, em uma extrusora de
Publicado em: 2007