Measurement of Nanoparticles Release during Drilling of Polymer Nanocomposites

Gendre, Laura; Rodríguez, Verónica Marchante; Abhyankar, Hrushikesh; Blackburn, Kim; Brighton, James

doi:10.1088/1742-6596/617/1/012027

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…In contrast to EP-based samples from one study [29] without CF reinforcement, the peak particle number concentrations in this study can be seen to be significantly lower. Furthermore, a comparison with the materials utilized in other studies [23][24][25][26][27]31] highlights a significant contrast in particle number concentrations observed across the studies. Ranging from a peak concentration of around 7.5 × 10 3 #/cm 3 [28] compared to peaks of over 2.2 × 10 9 #/cm 3 [27], this demonstrates how the polymer might be a major factor in the particle number concentration, with differences of up to 10 6 #/cm 3 .…”

Section: Influence Of Matrixmentioning

confidence: 95%

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The Influence of Graphene Oxide on Nanoparticle Emissions during Drilling of Graphene/Epoxy Carbon-Fiber Reinforced Engineered Nanomaterials

Starost

Njuguna

2020

Atmosphere

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Graphene oxide (GO) nanoparticles are increasingly being used to tailor industrial composites. However, despite the advantages, GO has shown conceivable health risks and toxicity to humans and the environment if released. This study investigates the influence that GO concentrations have on nanoparticle emissions from epoxy-reinforced carbon fiber hybrid composites (EP/CF) during a lifecycle scenario, that is, a drilling process. The mechanical properties are investigated and an automated drilling methodology in which the background noise is eliminated is used for the nanoparticle emissions measurements. Real-time measurements are collected using a condensation particle counter (CPC), a scanning mobility particle sizer spectrometer (SMPS), a real-time fast mobility particle spectrometer (DMS50) and post-test analytical methods. The results observe that all three nanoparticle reinforced samples demonstrated a statistically significant difference of up to a 243% increase in mean peak particle number concentration in comparison to the EP/CF sample. The results offer a novel set of data comparing the nanoparticle release of GO with varying filler weight concentration and correlating it the mechanical influence of the fillers. The results show that the release characteristics and the influence in particle number concentration are primarily dependent on the matrix brittleness and not necessarily the filler weight concentration within the nanocomposite.

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Section: Influence Of Matrixmentioning

confidence: 95%

“…As discussed, currently only nine studies have evaluated the influence of nanoparticles on nanoparticle release during drilling [23][24][25][26][27][28][29][30][31]. All of the studies observed nanoparticle release and highlighted the potential hazard and exposure to humans which needs to be understood.…”

Section: Influence Of Fillermentioning

confidence: 99%