Processing, manufacturing, and characterization of vibration damping in epoxy composites modified with graphene nanoplatelets

This research aims to characterize the vibration and damping properties of epoxy composites modified with pristine and amino‐functionalized graphene nanoplatelets (GNPs) at four different nanofiller loadings (0.2, 0.4, 0.6, 1.2 wt%). The GNPs/acetone solution was mixed with epoxy through mechanical...

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Bibliographic Details
Published inPolymer composites Vol. 40; no. 10; pp. 3914 - 3922
Main Authors Rafiee, Mohammad, Nitzsche, Fred, Labrosse, Michel R.
Format Journal Article
LanguageEnglish
Published Hoboken, USA John Wiley & Sons, Inc 01.10.2019
Blackwell Publishing Ltd
Subjects
Acetone
Aluminum
Damping ratio
Forced vibration
Frequency response functions
Graphene
Nanocomposites
Polymers
Resonant frequencies
Vibration damping
Vibration measurement
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Summary:This research aims to characterize the vibration and damping properties of epoxy composites modified with pristine and amino‐functionalized graphene nanoplatelets (GNPs) at four different nanofiller loadings (0.2, 0.4, 0.6, 1.2 wt%). The GNPs/acetone solution was mixed with epoxy through mechanical stirring. The mixture was then heated by means of a hot plate to evaporate the acetone. Once the mixture was cooled down, the hardener was added and the mixture injected into aluminum molds to form the nanocomposite test coupons. A shaker generated a periodic signal to excite the cantilever nanocomposite specimens at the fixed end. The frequency response functions (FRFs), damping ratios and natural frequencies measured using the forced vibration technique. The experimental results confirmed the beneficial effect of graphene nanoplatelets on the damping ratio of high content epoxy nanocomposites. POLYM. COMPOS., 40:3914–3922, 2019. © 2019 Society of Plastics Engineers
ISSN:0272-8397
1548-0569
DOI:10.1002/pc.25251