Tensile Properties of Polypropylene Composites Reinforced with Alumina Nanoparticles and Short Carbon Fibers

The good properties and high productivity obtained through injection molding have enabled the use of composites reinforced with short carbon fibers for the production of automobile components. Their low strength and stiffness, however, have limited the use of these materials in some applications. Th...

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Main Authors: João Lucas A.N.G. Ferreira, Marisa Cristina G. Rocha
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2023-06-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392023000200229&tlng=en
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author João Lucas A.N.G. Ferreira
Marisa Cristina G. Rocha
author_facet João Lucas A.N.G. Ferreira
Marisa Cristina G. Rocha
author_sort João Lucas A.N.G. Ferreira
collection DOAJ
description The good properties and high productivity obtained through injection molding have enabled the use of composites reinforced with short carbon fibers for the production of automobile components. Their low strength and stiffness, however, have limited the use of these materials in some applications. The incorporation of inorganic nanoparticles such as alumina (Al2O3) is a proposed solution to this problem. There is evidence that nanoparticles promote better interfacial interaction between the polymer and short carbon fibers, improving the mechanical performance of composites. The aim of this work was to develop polypropylene (PP) composites reinforced with alumina nanoparticles and short carbon fibers for the automotive industry. The composites were processed in a twin-screw extruder. The response surface methodology was used to define the content of nanoparticles in the composites and to evaluate the effect of the incorporation of the alumina and polypropylene-grafted maleic anhydride (PP-g-MA) on the properties obtained. The hybrid composite that showed the best tensile properties was used as a matrix for reinforcement with different levels of short carbon fiber. The tensile properties were determined by the standard techniques. The results showed that the materials obtained can be used in applications that require low density along with high productivity, rigidity and resistance.
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spelling doaj.art-0acd1dc8c4f045e3bb33e3bc9536431c2023-06-30T11:00:07ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392023-06-0126suppl 110.1590/1980-5373-mr-2023-0041Tensile Properties of Polypropylene Composites Reinforced with Alumina Nanoparticles and Short Carbon FibersJoão Lucas A.N.G. Ferreirahttps://orcid.org/0000-0001-9646-6371Marisa Cristina G. Rochahttps://orcid.org/0000-0002-5155-3399The good properties and high productivity obtained through injection molding have enabled the use of composites reinforced with short carbon fibers for the production of automobile components. Their low strength and stiffness, however, have limited the use of these materials in some applications. The incorporation of inorganic nanoparticles such as alumina (Al2O3) is a proposed solution to this problem. There is evidence that nanoparticles promote better interfacial interaction between the polymer and short carbon fibers, improving the mechanical performance of composites. The aim of this work was to develop polypropylene (PP) composites reinforced with alumina nanoparticles and short carbon fibers for the automotive industry. The composites were processed in a twin-screw extruder. The response surface methodology was used to define the content of nanoparticles in the composites and to evaluate the effect of the incorporation of the alumina and polypropylene-grafted maleic anhydride (PP-g-MA) on the properties obtained. The hybrid composite that showed the best tensile properties was used as a matrix for reinforcement with different levels of short carbon fiber. The tensile properties were determined by the standard techniques. The results showed that the materials obtained can be used in applications that require low density along with high productivity, rigidity and resistance.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392023000200229&tlng=enPolypropyleneHybrid compositesShort carbon fibersAlumina
spellingShingle João Lucas A.N.G. Ferreira
Marisa Cristina G. Rocha
Tensile Properties of Polypropylene Composites Reinforced with Alumina Nanoparticles and Short Carbon Fibers
Materials Research
Polypropylene
Hybrid composites
Short carbon fibers
Alumina
title Tensile Properties of Polypropylene Composites Reinforced with Alumina Nanoparticles and Short Carbon Fibers
title_full Tensile Properties of Polypropylene Composites Reinforced with Alumina Nanoparticles and Short Carbon Fibers
title_fullStr Tensile Properties of Polypropylene Composites Reinforced with Alumina Nanoparticles and Short Carbon Fibers
title_full_unstemmed Tensile Properties of Polypropylene Composites Reinforced with Alumina Nanoparticles and Short Carbon Fibers
title_short Tensile Properties of Polypropylene Composites Reinforced with Alumina Nanoparticles and Short Carbon Fibers
title_sort tensile properties of polypropylene composites reinforced with alumina nanoparticles and short carbon fibers
topic Polypropylene
Hybrid composites
Short carbon fibers
Alumina
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392023000200229&tlng=en
work_keys_str_mv AT joaolucasangferreira tensilepropertiesofpolypropylenecompositesreinforcedwithaluminananoparticlesandshortcarbonfibers
AT marisacristinagrocha tensilepropertiesofpolypropylenecompositesreinforcedwithaluminananoparticlesandshortcarbonfibers