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Uso de 2-octil cianoacrilato em anastomose colônia:estudo experimental em ratos Wistar
(Universidade Federal de Minas GeraisUFMG, 2008-12-01)
The aim of the present study was to compare the effect of 2-octyl cyanoacrylate tissue adhesive with polypropylene suture on the healing of colonic anastomosis in wistar rats. Thirty two animals, divided in four groups of ...
Otimização topológica de estruturas contínuas de polipropileno com restrições de tensão baseadas em critérios de escoamento
(Universidade Federal de Minas GeraisUFMG, 2015-06-25)
This paper develops a stress-based topology optimization method for structures with mechanical properties of polypropylene. This method compares a yield criteria proposed for polypropylene with the yield criteria of the ...
Formulação e caracterização de compósitos cimentícios leves aplicados a silos prefabricados
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E ENGENHARIA DE MATERIAIS, 2015-05-29)
The storage bins are used for storage of products for a certain period. Food stored can not undergo sudden changes in temperature, which prevents the use of metal silos in tropical regions. Thus, they are commonly made of ...
Estudo da caracterização de um compósito polimérico com matriz de polipropileno e carga particulada do endocarpo seco do cocos nucífera linn
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA MECÂNICA, 2016-09-29)
The use of natural residues as a reinforcement in the production of plastic composites has enabled the improvement of its mechanical structure and saved the utilization of synthetic reinforcement that has manufacturing ...
Estudo da viabilidade da reciclagem de biocompósitos à base de polipropileno e fibras de curauá
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA MECÂNICA, 2016-06-03)
This research presents an approach about the polypropylene recycling process reinforced with curauá reprocessed fibers. As an alternative proposal reinforcement to polymeric composites. Levels of 10 %, 20 % and 30 % of ...
Influência da deposição de filmes finos organosilicones na fotodegradação do polipropileno
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Ciência dos Materiais - PPGCM-So, 2013-07-31)
It is known that polypropylene is degraded in the presence of UV radiation, making difficult its use in applications where occurs this kind of radiation. This situation arises a need to improve the properties of polypropylene ...
Caracterização dos materiais lignocelulósicos da castanha do Brasil (Bertholletia excelsa), preparação e caracterização de seus compósitos com polipropileno
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2017-05-31)
This research aimed to characterize the lignocellulosic materials of the
Brazil nut (Bertholletia excelsa) extraction process and to develop biocomposites
incorporating these materials with homopolymer and copolymer ...
Determinación de perfiles de temperatura para el proceso de extrusión de polipropileno virgen y polipropileno reciclado”en el laboratorio de procesos industriales de la Facultad de Ciencias.
(Escuela Superior Politécnica de Chimborazo, 2017-06)
The extrusión temperatura profiles of recycled polypropylene and the virgin polypropylene
in the screw extruder machine werw determined in the Inndustrial Processes Laboratory of
the Faculty of Sciences of the “Escuela ...
Evaluación de la reacción de descomposición térmica de plásticos de polipropileno reciclado como fuente alternativa de combustibles.
(Escuela Superior Politécnica de Chimborazo, 2019-07-26)
The objective of this research work was to evaluate the suitability of recycled polypropylene plastic waste as an alternative fuel source. For this investigation, a TGA 1 STAR System thermogravimetric analyzer was used, ...