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Title: Spectroscopic investigation of the constituent components effect on the biodegradable package characteristics

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)
Authors:
; ;  [1] ;  [2] ;  [3] ;  [4] ;  [1] ;  [5]
  1. 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)
  2. National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Str., 400293 Cluj-Napoca (Romania)
  3. Technical University of Cluj-Napoca, Dept. of Physics, 25 G. Baritiu Str., RO-400020 Cluj-Napoca (Romania)
  4. Babeş-Bolyai University, Faculty of Physics, 1 Kogalniceanu Str., RO-400084, Cluj-Napoca (Romania)
  5. (Romania)
Publication Date:
OSTI Identifier:
22494486
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1700; Journal Issue: 1; Conference: PIM 2015: 10. international conference on processes in isotopes and molecules, Cluj-Napoca (Romania), 23-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; AMORPHOUS STATE; BIODEGRADATION; CARBON 13; CRYSTALS; EXTRUSION; GLYCEROL; HYDROGEN 1; MASS; NMR SPECTRA; NUCLEAR MAGNETIC RESONANCE; PLASTICIZERS; RELAXATION; SPECTROSCOPY; STARCH; WATER