Expanded graphite nanoplatelets as coupling agents in glass fiber reinforced polypropylene composites

The interfacial adhesion between E-glass fibers and various types of nanomodified polypropylene (PP) matrices have been investigated on single-fiber model composites. In particular, an evaluation of the fiber–matrix interfacial shear strength was performed by the fragmentation tests on model composites prepared by using PP matrices containing various amounts (up to 7 wt%) of expanded graphite nano platelets (xGnP). The presence of xGnP in the polymer matrix resulted in a remarkable increase of the interfacial shear strength values (up to a factor of about 6 for a 7 wt% content of xGnP) if compared to neat PP. Moreover, wettability measurements in various liquids evidenced that the work of adhesion of the polymer matrix with respect to glass fiber, was improved by the presence of xGnP. 2014 Elsevier Ltd. All rights reserved.

Titolo: Expanded graphite nanoplatelets as coupling agents in glass fiber reinforced polypropylene composites
Autori: Pedrazzoli, Diego; Pegoretti, Alessandro
Autori Unitn: 
Pedrazzoli, Diego
Pegoretti, Alessandro
Titolo del periodico: COMPOSITES. PART A: APPLIED SCIENCE AND MANUFACTURING
Anno di pubblicazione: 2014
Codice identificativo Scopus: 2-s2.0-84905191948
Codice identificativo WOS: WOS:000342955600003
Digital Object Identifier (DOI): http://dx.doi.org/10.1016/j.compositesa.2014.06.016
Handle: http://hdl.handle.net/11572/98345
Appare nelle tipologie:03.1 Articolo su rivista (Journal article)

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