Influence of organic plasticizers on sensory, physical-mechanical properties and chemical changes of biodegradable films

Autor: Oksana Shulga, Larisa Arsenieva, Anastasia Chernaya
Rok vydání: 2016
Předmět:
Zdroj: Eastern-European Journal of Enterprise Technologies. 6:36-42
ISSN: 1729-4061
1729-3774
DOI: 10.15587/1729-4061.2016.84511
Popis: The research to establish the influence of different organic plasticizers on the properties of biodegradable films was done. The most widespread, relatively inexpensive plasticizers were chosen that were added to the film based on corn starch or modified starch and gelatin. The complex organoleptic indicator of quality is calculated that is the highest in such plasticizers as glycerin and sorbitol; films with glucose, sucrose and fructose as plasticizers have a lower index; films with urea have the lowest index. The changes in tensile strength and elongation depending on the plasticizer are calculated. The obtained results can be explained by properties of organic compounds used as plasticizers. IR Spectroscopy was used to determine that carbohydrates (fructose, glucose, sucrose) and polyhydric alcohols (glycerin, sorbitol) did not enter into chemical reaction with film forming agents (starch and gelatin). Only acid amides (urea) react with gelatin strengthening biodegradable films. The obtained results allow to predict the properties of the films, and in future will help to expand the range of raw materials used to make biodegradable films.
Databáze: OpenAIRE