Abstract
The chemical analysis of stable combustion products found in the particulate smoke of polymeric materials is described. The chemical nature of the products produced during flaming and non-flaming modes yeilds valuable information on the possdible role of polynuclear aromatic hydrocarbons (PAH) in the smoke formation process. Samples of polyethylene, polypropylene, polymethylmetahcrylate and polystyrene were studied under controlled thermalo fluxes, and the first three showed similar trends: (1) In the non-flaming mode, aliphatic compounds predominated in the extractable portion of the particulate smoke. (2) In the flaming mode, PAH predominated in the extractable fraction. (3) In the non-flaming mode, of the PAH present, three- and four-membered ring compounds predominated, (4) In the flaming mode, again three- and four-membered ring compounds predominated, but many other PAH up to six-metmbered rings were found. Polysteyren gave rise to degradation products stillcontaining the basic-styrene-derived C 6 H 5 −C 2 units. The quantitative studies of polymer particulate smoke, taken together with further studies of combustion products of pure PAH, leads to a postulated chemical smoke formation pathway.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
