Morphology, mechanical performance, and nanoindentation behavior of injection molded PC/ABS-MWCNT nanocomposites

ABSTRACT In this work, nanocomposites of polycarbonate/acrylonitrile‐butadiene‐styrene (PC/ABS) with various loads of multiwall carbon nanotubes (MWCNT) are investigated. Material is previously formed by masterbatch dilution approach and further processed by injection molding at various velocities....

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Bibliographic Details
Published in:Journal of applied polymer science 2015-06, Vol.132 (22), p.np-n/a
Main Authors: Wegrzyn, Marcin, Sahuquillo, Oscar, Benedito, Adolfo, Gimenez, Enrique
Format: Article
Language:English
Subjects:
ABS resins
blends
Deviation
Dispersions
graphene and fullerenes
Injection molding
Materials science
mechanical properties
molding
Morphology
Nanocomposites
Nanoindentation
Nanostructure
nanotubes
Polycarbonates
Polymers
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Summary:ABSTRACT In this work, nanocomposites of polycarbonate/acrylonitrile‐butadiene‐styrene (PC/ABS) with various loads of multiwall carbon nanotubes (MWCNT) are investigated. Material is previously formed by masterbatch dilution approach and further processed by injection molding at various velocities. Microscopic characterization of nanocomposites morphology reveals stronger dependence of MWCNT dispersion on processing parameters at higher nanofiller load. Dispersion of carbon nanotubes at various distances from the injection gate is studied by Raman spectroscopy showing lower deviation at elevated injection velocity. Nanoindentation results that are in agreement with uniaxial tensile testing show a slight decrease of nanocomposites' mechanical performance at 3.0 wt % MWCNT in samples injected at reduced velocity. This is explained by the increase of agglomeration behavior at these conditions. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42014.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.42014