Temperature measurements of the gaseous emission during the fracture of polystyrene: A determination of the fracture energy and fracture surface temperature

Autor:	S. C. Langford, R. P. Dion, L. C. Jensen, J. T. Dickinson
Rok vydání:	1994
Předmět:	Yield (engineering) Polymers and Plastics Analytical chemistry Noble gas Mineralogy Fracture mechanics Dissipation Condensed Matter Physics Temperature measurement chemistry.chemical_compound chemistry Impurity Materials Chemistry Fracture (geology) Polystyrene Physical and Theoretical Chemistry
Zdroj:	Journal of Polymer Science Part B: Polymer Physics. 32:779-784
ISSN:	1099-0488 0887-6266
DOI:	10.1002/polb.1994.090320419
Popis:	The emission of volatile species accompanying the fracture of polystyrene has been monitored as a function of time by two quadrupole mass spectrometers mounted at different distances from the sample. The resulting time-of-arrival signals were numerically modeled to yield an estimate of the energy per unit area dissipated as heat by fracture. Neutral emissions of ethyl benzene molecules (a common volatile impurity) and a noble gas (Arintroduced by exposure) were monitored. Dissipation (fracture) energies determined ranged from 680 to 1480 J/cm2, consistent with the range of energy release rates in the literature. The peak surface temperatures calculated from the measured heat dissipation ranged from 600 to 1300 K. © 1994 John Wiley & Sons, Inc.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d51ee4af9fd0178e1ce1528eccba43fd https://doi.org/10.1002/polb.1994.090320419 Zobrazit plný text záznamu Plný text