Please use this identifier to cite or link to this item:
|Title:||Application of ATR in characterizing aging conditions of polyurethane sealants|
|Authors:||Chew, M.Y.L. |
|Source:||Chew, M.Y.L.,Zhou, X.,Tay, Y.M. (2000). Application of ATR in characterizing aging conditions of polyurethane sealants. Polymer Testing 20 (1) : 87-92. ScholarBank@NUS Repository.|
|Abstract:||The effectiveness of using ATR to study the chemical structure of various polyurethane formulations designed as joint sealants on building facades is discussed. Sealants were formulated, batched and exposed to various aging conditions before mounted on ATR spectroscopy apparatus for monitoring. The study has shown that ATR is effective in characterizing the chemical structure in terms of physical cross-linking and conformation state. It is shown that although aging tends to occur in the surface section of a specimen it can contribute to the deterioration of the bulk mechanical properties. Significant differences in the chemical structure of sealants in the surface section and the interior region after thorough curing was shown. © 2000 Elsevier Science Ltd. All rights reserved.|
|Source Title:||Polymer Testing|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 15, 2017
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.