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Open AccessArticle

Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites

1
Cellular Materials Laboratory (CellMat), Universidad de Valladolid, 47011 Valladolid, Spain
2
CellMat Technologies S.L., Paseo de Belen 9-A (CTTA Building), 47011 Valladolid, Spain
3
National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(4), 943; https://doi.org/10.3390/polym12040943
Received: 25 March 2020 / Revised: 14 April 2020 / Accepted: 15 April 2020 / Published: 18 April 2020
(This article belongs to the Special Issue Polymeric Foams II)
In this work, formulations based on composites of a linear polypropylene (L-PP), a long-chain branched polypropylene (LCB-PP), a polypropylene–graft–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. View Full-Text
Keywords: polypropylene; long-chain branching; SEBS; halloysite nanotubes; foam; impact strength; glass fiber; ductility; cellular structure; open cell polypropylene; long-chain branching; SEBS; halloysite nanotubes; foam; impact strength; glass fiber; ductility; cellular structure; open cell
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MDPI and ACS Style

Muñoz-Pascual, S.; Saiz-Arroyo, C.; Vuluga, Z.; Corobea, M.C.; Rodriguez-Perez, M.A. Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites. Polymers 2020, 12, 943. https://doi.org/10.3390/polym12040943

AMA Style

Muñoz-Pascual S, Saiz-Arroyo C, Vuluga Z, Corobea MC, Rodriguez-Perez MA. Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites. Polymers. 2020; 12(4):943. https://doi.org/10.3390/polym12040943

Chicago/Turabian Style

Muñoz-Pascual, Santiago; Saiz-Arroyo, Cristina; Vuluga, Zina; Corobea, Mihai C.; Rodriguez-Perez, Miguel A. 2020. "Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites" Polymers 12, no. 4: 943. https://doi.org/10.3390/polym12040943

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