Affiliation:
1. Faculty of Technology and Metallurgy, Department of Organic Chemical Technology, Belgrade
2. Faculty of Technology and Metallurgy, Department of Metallurgical Engineering, Belgrade
3. Faculty of Technology and Metallurgy, Department of Construction Materials, Belgrade
Abstract
The aim of this paper is to present image analysis as a useful technique for
fast, reliable and non-destructive detection of dimensional and structural
changes in polymers. The possibility of applying image analysis was
demonstrated in the case of solvent-induced crystallization of poly(ethylene
terephthalate) (PET) containers filled with commonly used organic solvents:
chlorobenzene, isophorone, xylene, Espesol, Shellsol A 100, Solvesso 150,
propylene glycol, glycerin and water and subjected to the storage stability
test at 54 ?C for 14 days (CIPAC 1-MT 46.1.3). In addition, the obtained
results were analyzed using one-step analysis of variance (ANOVA) combined
with the Duncan?s statistical test (p<0.05). According to the achieved
results, three main impacts of the presented paper could be distinguished: 1)
dimensional and transparency changes could be precisely followed by image
analysis in both following cases: for small changes in water, as well as for
significant ones in chlorobenzene; 2) a correlation between the changes in
the degree of crystallinity and transparency could be obtained without the
continuous material testing by DSC; 3) image analysis is potentially
applicable for assessment of other crystalline polymers.
Funder
Ministry of Education, Science and Technological Development of the Republic of Serbia
Publisher
National Library of Serbia
Subject
General Chemical Engineering,General Chemistry