Details:

Alternative Title:
Combust Flame
Personal Author:
Turkevich, Leonid A. ; Fernback, Joseph ; Dastidar, Ashok G. ; Osterberg, Paul
Turkevich, Leonid A. ; Fernback, Joseph ; Dastidar, Ashok G. ; Osterberg, Paul Less -
Description:
There is a concern that engineered carbon nanoparticles, when manufactured on an industrial scale, will pose an explosion hazard. Explosion testing has been performed on 20 codes of carbonaceous powders. These include several different codes of SWCNTs (single-walled carbon nanotubes), MWCNTs (multi-walled carbon nanotubes) and CNFs (carbon nanofibers), graphene, diamond, fullerene, as well as several different control carbon blacks and graphites. Explosion screening was performed in a 20 L explosion chamber (ASTM E1226 protocol), at a concentration of 500 g/m|, using a 5 kJ ignition source. Time traces of overpressure were recorded. Samples typically exhibited overpressures of 5-7 bar, and deflagration index K| = V| (dP/dt)| ~ 10 - 80 bar-m/s, which places these materials in European Dust Explosion Class St-1. There is minimal variation between these different materials. The explosive characteristics of these carbonaceous powders are uncorrelated with primary particle size (BET specific surface area).
Subjects:
[+]
Article Carbon Dust Explosion Hazard Nanomaterials Nanoparticle
Source:
Combust Flame. 167:218-227
Pubmed ID:
27468178
Pubmed Central ID:
PMC4959120
Document Type:
Journal Article
Funding:
CC999999/Intramural CDC HHSUnited States/
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:bfdd04b3d84084b531aaff2932f3dd03906c41eff3f899d406134a0794935eac
Download URL:
https://stacks.cdc.gov/view/cdc/40545/cdc_40545_DS1.pdf
File Type:

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