Effects of nano nickel powders addition on flash pyrolysis of poly(ethylene glycol)

Pure PEG and the mixture of PEG and nano nickel powders (PEG/n-Ni) were pyrolyzed at 500°C for 5min in N2 atmosphere. GC/MS and FTIR were employed to detect the volatile products. Some important regularity in the mass spectra of the PEG pyrolysis products was discovered, and 11 series of PEG pyrolys...

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Bibliographic Details
Published in:European polymer journal 2008-03, Vol.44 (3), p.645-652
Main Authors: Lin, Z.K., Li, S.F.
Format: Article
Language:English
Subjects:
Applied sciences
Catalysis capabilities
Composites
End groups
Exact sciences and technology
Flash pyrolysis products
Forms of application and semi-finished materials
Nano nickel powders
Poly(ethylene glycol)
Polymer industry, paints, wood
Technology of polymers
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Summary:Pure PEG and the mixture of PEG and nano nickel powders (PEG/n-Ni) were pyrolyzed at 500°C for 5min in N2 atmosphere. GC/MS and FTIR were employed to detect the volatile products. Some important regularity in the mass spectra of the PEG pyrolysis products was discovered, and 11 series of PEG pyrolysis products were identified. The experimental results show that the nano Ni powders evidently change the relative contents of each products series. The statistical results of the ratio of C–O cleavage to C–C cleavage, as well as the ratio of hydrogenation to dehydrogenation, indicate that nano Ni powders have remarkable effects on the bonds cleavage and free radicals annihilation. The process of hydrogenolysis and hydrogenation were propounded to explain the effects of nano Ni addition on PEG flash pyrolysis.
ISSN:0014-3057
1873-1945
DOI:10.1016/j.eurpolymj.2007.11.034