Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites

In this work, formulations based on composites of a linear polypropylene (L-PP), a long-chain branched polypropylene (LCB-PP), a polypropylene–<i>graft</i>–maleic anhydride (PP-MA), a styrene-ethylene-butylene-styrene copolymer (SEBS), glass fibers (GF), and halloysite nanotubes (HNT-QM)...

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Main Authors: Santiago Muñoz-Pascual, Cristina Saiz-Arroyo, Zina Vuluga, Mihai Cosmin Corobea, Miguel Angel Rodriguez-Perez
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/12/4/943
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author Santiago Muñoz-Pascual
Cristina Saiz-Arroyo
Zina Vuluga
Mihai Cosmin Corobea
Miguel Angel Rodriguez-Perez
author_facet Santiago Muñoz-Pascual
Cristina Saiz-Arroyo
Zina Vuluga
Mihai Cosmin Corobea
Miguel Angel Rodriguez-Perez
author_sort Santiago Muñoz-Pascual
collection DOAJ
description In this work, formulations based on composites of a linear polypropylene (L-PP), a long-chain branched polypropylene (LCB-PP), a polypropylene–<i>graft</i>–maleic anhydride (PP-MA), a styrene-ethylene-butylene-styrene copolymer (SEBS), glass fibers (GF), and halloysite nanotubes (HNT-QM) have been foamed by using the improved compression molding route (ICM), obtaining relative densities of about 0.62. The combination of the inclusion of elastomer and rigid phases with the use of the LCB-PP led to foams with a better cellular structure, an improved ductility, and considerable values of the elastic modulus. Consequently, the produced foams presented simultaneously an excellent impact performance and a high stiffness with respect to their corresponding solid counterparts.
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spelling doaj.art-be895e11b95840a684c53877e09c4ba62023-11-19T22:01:31ZengMDPI AGPolymers2073-43602020-04-0112494310.3390/polym12040943Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene CompositesSantiago Muñoz-Pascual0Cristina Saiz-Arroyo1Zina Vuluga2Mihai Cosmin Corobea3Miguel Angel Rodriguez-Perez4Cellular Materials Laboratory (CellMat), Universidad de Valladolid, 47011 Valladolid, SpainCellMat Technologies S.L., Paseo de Belen 9-A (CTTA Building), 47011 Valladolid, SpainNational Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, RomaniaCellular Materials Laboratory (CellMat), Universidad de Valladolid, 47011 Valladolid, SpainIn this work, formulations based on composites of a linear polypropylene (L-PP), a long-chain branched polypropylene (LCB-PP), a polypropylene–<i>graft</i>–maleic anhydride (PP-MA), a styrene-ethylene-butylene-styrene copolymer (SEBS), glass fibers (GF), and halloysite nanotubes (HNT-QM) have been foamed by using the improved compression molding route (ICM), obtaining relative densities of about 0.62. The combination of the inclusion of elastomer and rigid phases with the use of the LCB-PP led to foams with a better cellular structure, an improved ductility, and considerable values of the elastic modulus. Consequently, the produced foams presented simultaneously an excellent impact performance and a high stiffness with respect to their corresponding solid counterparts.https://www.mdpi.com/2073-4360/12/4/943polypropylenelong-chain branchingSEBShalloysite nanotubesfoamimpact strength
spellingShingle Santiago Muñoz-Pascual
Cristina Saiz-Arroyo
Zina Vuluga
Mihai Cosmin Corobea
Miguel Angel Rodriguez-Perez
Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites
Polymers
polypropylene
long-chain branching
SEBS
halloysite nanotubes
foam
impact strength
title Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites
title_full Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites
title_fullStr Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites
title_full_unstemmed Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites
title_short Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites
title_sort foams with enhanced ductility and impact behavior based on polypropylene composites
topic polypropylene
long-chain branching
SEBS
halloysite nanotubes
foam
impact strength
url https://www.mdpi.com/2073-4360/12/4/943
work_keys_str_mv AT santiagomunozpascual foamswithenhancedductilityandimpactbehaviorbasedonpolypropylenecomposites
AT cristinasaizarroyo foamswithenhancedductilityandimpactbehaviorbasedonpolypropylenecomposites
AT zinavuluga foamswithenhancedductilityandimpactbehaviorbasedonpolypropylenecomposites
AT mihaicosmincorobea foamswithenhancedductilityandimpactbehaviorbasedonpolypropylenecomposites
AT miguelangelrodriguezperez foamswithenhancedductilityandimpactbehaviorbasedonpolypropylenecomposites