Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9675782 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2005 | 5 Pages |
Abstract
Experimental results on bubble nucleation in the solid-state polystyrene-nitrogen system are presented. It was found that the bubble nucleation occurs over a period of approximately 30Â s, and is not instantaneous as previously suggested. Over the range of nitrogen pressures explored, 4-14Â MPa, the cell nucleation density increased exponentially. However this increase was many orders of magnitude less than predicted by the homogeneous nucleation model, indicating that the classical theory may not be applicable to nucleation in thermoplastic polymers near the glass transition.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Vipin Kumar,