Spectroscopic investigation of the constituent components effect on the biodegradable package characteristics
- National Institute of Research-Development for Machines and Installations Designed to Agriculture and Food Industry – INMA Bucureşti – Cluj-Napoca Branch, 59, Al. Vaida-Voievod Str., RO-400458 Cluj-Napoca (Romania)
- National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Str., 400293 Cluj-Napoca (Romania)
- Technical University of Cluj-Napoca, Dept. of Physics, 25 G. Baritiu Str., RO-400020 Cluj-Napoca (Romania)
- Babeş-Bolyai University, Faculty of Physics, 1 Kogalniceanu Str., RO-400084, Cluj-Napoca (Romania)
The effect of the nature and the content of the plasticizers (water, glycerol) on the corn starch based biodegradable packages properties (crystalline-amorphous) and also on their degradation process after absorption of distilled water were investigated by {sup 1}H NMR relaxation and {sup 13}C CP/MAS NMR spectroscopies. For this goal, a set of 14 samples with various starch/glycerol/water (mass %) ratios were prepared and investigated after extrusion process in order to establish their crystalline or amorphous character. The composition having starch/glycerol/water 68/17/15 mass % ratio was found to have a dominant amorphous character and very similar features with a commercial specimen (USA) used for the package. It was also found that this best package is extremely degraded after just one day under water absorption. The most resistant package was that with a large content of starch (78/19.5/2.5)
- OSTI ID:
- 22494486
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1700; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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