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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 809-810Effect of the Injection Moulding Parameters on the...

Effect of the Injection Moulding Parameters on the Creep Properties in Polypropylene/Carbon Nanotubes Composites

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Abstract:

The goal of this paper is to study the time-dependent properties of multi-walls carbon nanotubes (MWCNTs)-filled polypropylene (PP) composites using the instrumented indentation technique. Two types of the indentation test, the 3-step and the 5-step indentation tests, were considered to investigate the creep response during sharp indentation. In order to characterize the state of distribution of MWCNTs, the Scanning Electron Microscopy (SEM) technique was used. It was found that the maximum indentation depth decreases with the increase in the MWCNTs concentration. At lower MWCNTs concentration, the effect of injection pressure on the creep displacement is not significant. Comparison of the creep displacements from 3-step and 5-step loading histories indicates a noticeable decrease in creep displacement when the 5-step loading history is used.

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Periodical:

Applied Mechanics and Materials (Volumes 809-810)

Pages:

253-258

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.809-810.253

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Online since:

November 2015

Authors:

Alina Mihaela Cantaragiu*, Felicia Stan, Cătălin Fetecău, Ionut Laurentiu Sandu

Keywords:

Creep, Instrumented Indentation Technique, Polypropylene, Scanning Electron Microscopy

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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