ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
The amount of residual n-pentane in expandable polystyrene bead foam (PSBF) has an effect on the strength and dimensional stability of the foam. Data were needed to determine how fast the residual n-pentane could be removed to enhance the properties of PSBF. An experiment was designed to determine the diffusivity of n-pentane through PSBF at various temperatures. Mathematical models based on the appropriate diffusion differential equations were then used to predict n-pentane concentrations in in cylinders of PSBF. The diffusivity of n-pentane through PSBF was found to have a magnitude of 1×10-8 to 1×10-6 cm2/sec and to vary with temperature, foam density, n-pentane concentration, and foam structure.
Additional Material:
19 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1973.070170609
