Efeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/896 |
Resumo: | This research fits in the technological development area and is aimed to evaluate the effects of adding waste of rigid polyurethane foam in the polymeric compounds based on polypropylene. The results of this research will certainly contribute to finding a solution to the large volume of industrial wastes of rigid polyurethane foam that arise from the waste process of handling thermal insulation from the production of refrigerators and freezers. The analysis of the effects of adding scraps of rigid foam in polypropylene copolymer was made by evaluating the physical, mechanical and thermal properties of the compounds when compared to the behavior of neat polypropylene. Moreover, the technique of Scanning Electron Microscopy was used to observe the microstructure of the final compound. The rigid polyurethane foam, after grinding, was incorporated into polypropylene by blending on the twin extruder and then the granulated materials obtained were injected to obtain the samples. In general, the compounds showed good processability in the experimental phase and looked good as can be seen in the SEM micrographs. The mechanical properties showed that the incorporation of PUR in PP copolymers promoted a brittle behavior in the compounds decreasing the main mechanical properties tested. However, the addition of the compatibilizing agent used, PP-g-MA helped in improving these properties. The use of PUR in polypropylene compounds brought advantages in terms of reducing waste disposal and thus has economic and environmental advantages and also viability in applications where high mechanical strength is not required. |
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Pereira, Simone FontanaHage Júnior, Eliashttp://lattes.cnpq.br/124069292632768766c41c1f-92b0-4a65-adcf-727d8d84d3412016-06-02T19:12:28Z2013-05-172016-06-02T19:12:28Z2012-12-07PEREIRA, Simone Fontana. Effects of incorporating waste rigid polyurethane foam in the polymer compounds based on polypropylene abstract. 2012. 123 f. Dissertação (Mestrado em Ciências Exatas e da Terra) - Universidade Federal de São Carlos, São Carlos, 2012.https://repositorio.ufscar.br/handle/ufscar/896This research fits in the technological development area and is aimed to evaluate the effects of adding waste of rigid polyurethane foam in the polymeric compounds based on polypropylene. The results of this research will certainly contribute to finding a solution to the large volume of industrial wastes of rigid polyurethane foam that arise from the waste process of handling thermal insulation from the production of refrigerators and freezers. The analysis of the effects of adding scraps of rigid foam in polypropylene copolymer was made by evaluating the physical, mechanical and thermal properties of the compounds when compared to the behavior of neat polypropylene. Moreover, the technique of Scanning Electron Microscopy was used to observe the microstructure of the final compound. The rigid polyurethane foam, after grinding, was incorporated into polypropylene by blending on the twin extruder and then the granulated materials obtained were injected to obtain the samples. In general, the compounds showed good processability in the experimental phase and looked good as can be seen in the SEM micrographs. The mechanical properties showed that the incorporation of PUR in PP copolymers promoted a brittle behavior in the compounds decreasing the main mechanical properties tested. However, the addition of the compatibilizing agent used, PP-g-MA helped in improving these properties. The use of PUR in polypropylene compounds brought advantages in terms of reducing waste disposal and thus has economic and environmental advantages and also viability in applications where high mechanical strength is not required.Este trabalho enquadra-se na área de Desenvolvimento Tecnológico e teve como principal objetivo avaliar os efeitos da adição de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno. Os resultados desta pesquisa certamente contribuirão para encontrar uma solução para o grande volume de rejeitos industriais da espuma rígida de poliuretano que surgem com resíduos de processo durante sua utilização como isolante térmico para refrigeradores e freezers. A análise dos efeitos da adição de rejeitos de espuma rígida de poliuretano (PUR) nos compostos poliméricos de polipropileno foi feita através da avaliação das propriedades físicas, mecânicas e térmicas dos compostos com e sem a adição do agente compatibilizante variando-se a porcentagem de PUR adicionada - 20%, 30% e 40% - do composto quando comparados ao comportamento do polipropileno puro. Além disso, a técnica de Microscopia Eletrônica de Varredura foi utilizada para observar a microestrutura do composto final. A espuma rígida de poliuretano, após a sua moagem, foi incorporada em polipropileno através de mistura em extrusora de dupla rosca e, em seguida os materiais granulados obtidos foram injetados para obtenção dos corpos de prova. Em geral os compostos apresentaram uma boa processabilidade na etapa experimental e uma boa distribuição dos componentes. As propriedades mecânicas mostraram que a incorporação de PUR em copolímeros de PP promoveu uma maior fragilidade nos compostos diminuindo as principais propriedades mecânicas testadas. Entretanto, a adição do agente compatibilizante utilizado, PP-g-MA promoveu uma melhora significativa nessas propriedades melhorando a adesão interfacial entre os materiais e promovendo, por exemplo, um aumento significativo nos valores de HDT promovendo assim um aumento na resistência térmica destes compostos viabilizando a sua utilização em diversas aplicações.application/pdfporUniversidade Federal de São CarlosPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMUFSCarBRPolipropilenoPoliuretanoCompostos poliméricosENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICAEfeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropilenoEffects of incorporating waste rigid polyurethane foam in the polymer compounds based on polypropylene abstractinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis-1-1f1ae4772-6abc-474a-a0dc-4be6bc3d1282info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINAL5109.pdfapplication/pdf4283744https://repositorio.ufscar.br/bitstream/ufscar/896/1/5109.pdf408302378e18ddc95ba19b710ebac788MD51TEXT5109.pdf.txt5109.pdf.txtExtracted texttext/plain0https://repositorio.ufscar.br/bitstream/ufscar/896/2/5109.pdf.txtd41d8cd98f00b204e9800998ecf8427eMD52THUMBNAIL5109.pdf.jpg5109.pdf.jpgIM Thumbnailimage/jpeg6425https://repositorio.ufscar.br/bitstream/ufscar/896/3/5109.pdf.jpg5da2464cc0812b5636e09b6a90dfb0c4MD53ufscar/8962023-09-18 18:31:28.279oai:repositorio.ufscar.br:ufscar/896Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:31:28Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Efeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno |
dc.title.alternative.eng.fl_str_mv |
Effects of incorporating waste rigid polyurethane foam in the polymer compounds based on polypropylene abstract |
title |
Efeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno |
spellingShingle |
Efeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno Pereira, Simone Fontana Polipropileno Poliuretano Compostos poliméricos ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA |
title_short |
Efeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno |
title_full |
Efeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno |
title_fullStr |
Efeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno |
title_full_unstemmed |
Efeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno |
title_sort |
Efeitos da incorporação de resíduos de espuma rígida de poliuretano em compostos poliméricos a base de polipropileno |
author |
Pereira, Simone Fontana |
author_facet |
Pereira, Simone Fontana |
author_role |
author |
dc.contributor.author.fl_str_mv |
Pereira, Simone Fontana |
dc.contributor.advisor1.fl_str_mv |
Hage Júnior, Elias |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/1240692926327687 |
dc.contributor.authorID.fl_str_mv |
66c41c1f-92b0-4a65-adcf-727d8d84d341 |
contributor_str_mv |
Hage Júnior, Elias |
dc.subject.por.fl_str_mv |
Polipropileno Poliuretano Compostos poliméricos |
topic |
Polipropileno Poliuretano Compostos poliméricos ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA |
description |
This research fits in the technological development area and is aimed to evaluate the effects of adding waste of rigid polyurethane foam in the polymeric compounds based on polypropylene. The results of this research will certainly contribute to finding a solution to the large volume of industrial wastes of rigid polyurethane foam that arise from the waste process of handling thermal insulation from the production of refrigerators and freezers. The analysis of the effects of adding scraps of rigid foam in polypropylene copolymer was made by evaluating the physical, mechanical and thermal properties of the compounds when compared to the behavior of neat polypropylene. Moreover, the technique of Scanning Electron Microscopy was used to observe the microstructure of the final compound. The rigid polyurethane foam, after grinding, was incorporated into polypropylene by blending on the twin extruder and then the granulated materials obtained were injected to obtain the samples. In general, the compounds showed good processability in the experimental phase and looked good as can be seen in the SEM micrographs. The mechanical properties showed that the incorporation of PUR in PP copolymers promoted a brittle behavior in the compounds decreasing the main mechanical properties tested. However, the addition of the compatibilizing agent used, PP-g-MA helped in improving these properties. The use of PUR in polypropylene compounds brought advantages in terms of reducing waste disposal and thus has economic and environmental advantages and also viability in applications where high mechanical strength is not required. |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012-12-07 |
dc.date.available.fl_str_mv |
2013-05-17 2016-06-02T19:12:28Z |
dc.date.accessioned.fl_str_mv |
2016-06-02T19:12:28Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PEREIRA, Simone Fontana. Effects of incorporating waste rigid polyurethane foam in the polymer compounds based on polypropylene abstract. 2012. 123 f. Dissertação (Mestrado em Ciências Exatas e da Terra) - Universidade Federal de São Carlos, São Carlos, 2012. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/896 |
identifier_str_mv |
PEREIRA, Simone Fontana. Effects of incorporating waste rigid polyurethane foam in the polymer compounds based on polypropylene abstract. 2012. 123 f. Dissertação (Mestrado em Ciências Exatas e da Terra) - Universidade Federal de São Carlos, São Carlos, 2012. |
url |
https://repositorio.ufscar.br/handle/ufscar/896 |
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por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos |
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Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM |
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UFSCar |
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BR |
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Universidade Federal de São Carlos |
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