Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
675369 | Thermochimica Acta | 2008 | 4 Pages |
Abstract
Two waxes, a soft petroleum wax and a hard Fischer–Tropsch paraffin wax, have been investigated to find the reasons for multiple endothermic peaks observed during heating in a DSC. DSC curves, molar mass distribution curves, and variable-temperature XRD results were compared, and it was confirmed that the first endothermic peak for the soft petroleum wax was due to a solid–solid transition, while the second endothermic peak was due to melting. However, for the hard Fischer–Tropsch paraffin wax there was no evidence of a solid–solid transition, and it was concluded that the multiple endothermic peaks in this case were due to melting of different molar mass fractions.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
A.S. Luyt, I. Krupa,