Study of Cell Nucleation in Nano Ploymer Foams
Author | : Yeongyoon Kim |
Publisher | : |
Total Pages | : 93 |
Release | : 2012 |
ISBN-10 | : OCLC:835761044 |
ISBN-13 | : |
Rating | : 4/5 (44 Downloads) |
Download or read book Study of Cell Nucleation in Nano Ploymer Foams written by Yeongyoon Kim and published by . This book was released on 2012 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is about "nano-cellular" polymer foams, i.e., to understand nano-bubble nucleation and growth mechanisms, we used Self-Consistent Field Theory (SCFT) for the research. Classical Nucleation Theory (CNT) is often used to calculate nucleation rates, but CNT has assumptions which break down for a nano-sized bubble: it assumes planar sharp interfaces and bulk phases inside bubbles. Therefore, since the size of a nano-sized bubble is comparable to the size of the polymer molecule, we assumed that a bubble surface is a curved surface, and we i[n]vestigated effects of curvature on the nucleation barrier.