R
Rosestela Perera
Researcher at Simón Bolívar University
Publications - 51
Citations - 1018
Rosestela Perera is an academic researcher from Simón Bolívar University. The author has contributed to research in topics: Polyethylene & Ultimate tensile strength. The author has an hindex of 15, co-authored 50 publications receiving 959 citations. Previous affiliations of Rosestela Perera include University of Valladolid.
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Polypropylene/wood flour composites: treatments and properties
TL;DR: In this article, the variations produced on the mechanical, morphological and thermal properties and on the melt index (MI) of a composite of polypropylene and wood flour (WF) by the modification of the filler were studied.
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The effect of gamma radiation on the properties of polypropylene blends with styrene–butadiene–styrene copolymers
TL;DR: In this paper, the effects of gamma radiation on polypropylene, styrene-butadiene-styrene copolymers and their blends were studied, and it was shown that the presence of SBS beyond 30 wt.% decreases the PP sensitivity to radiation effects, which results in a lower decrease in the melting temperature and enthalpy of the PP at higher SBS contents.
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Grafting of polyethylenes by reactive extrusion. I. Influence on the molecular structure
Carmen Rosales,Rosestela Perera,M. Ichazo,Jeanette González,Héctor Rojas,A. Sánchez,A. Díaz Barrios +6 more
TL;DR: In this paper, the grafting of various commercial polyethylenes, such as high-density polyethylene (HDPEs), and linear low-density (LLDPEs) with diethyl maleate (DEM) was carried out in two corotating twinscrew extruders with different screw configurations and extrusion conditions.
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Functionalized polypropylenes in the compatibilization and dispersion of clay nanocomposites
C. Varela,Carmen Rosales,Rosestela Perera,Mireya Matos,Thierry Poirier,J. Blunda,Héctor Rojas +6 more
TL;DR: In this article, the preparation of polypropylene (PP) nanocomposites was studied using clay and three types of modified PP (m-PP) as compatibilizers.
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Characterization and tensile properties of ternary blends with PA-6 nanocomposites
TL;DR: In this article, the effectiveness of using a styrene/ ethylene-butylene/styrene rubber grafted with maleic anhydride (MA) as toughening material in ternary blends with two polyamide-6 nanocomposites or PP with different molecular weight as matrix phases was evaluated in terms of SEM and TEM morphology, WAXD, capillary rheometry, and tensile properties determination.