Affiliation:
1. Russian Biotechnological University
2. Plekhanov Russian Economic University
Abstract
Introduction. The article is devoted to the study of the influence of the "Polymateria" additive on the properties of polyethylene films and their biodegradability. The additive "Polymateria" is presented by the manufacturer as an additive that accelerates the process of biodegradation of polyolefin films. However, studies published in the literature have not previously been presented.Purpose. Therefore, the purpose of the work is to study polymer films containing the Polymater additive for their performance characteristics and evaluate film samples for biodegradability. In the work, polymer films based on polyethylene and the additive "Polymateria" were obtained by extrusion.Materials and Methods. The following research methods were used in the work: a method for determining water absorption, a method for determining resistance to chemical media, a method for artificial aging of polymeric materials under the influence of ultraviolet radiation and temperature, a uniaxial tensile test method, comprehensive studies of films for biodegradation by composting, determination of the sanitary and hygienic properties of experimental samples during exposure in simulation environmentsResults. In the course of the study, it was found that the physical and mechanical properties under the influence of UV irradiation do not change as intensively as compared with the deformation-strength characteristics of samples that were subjected to artificial aging at temperature. It has been established that within 28 hours of exposure to thermal-oxidative aging, polyethylene films are destroyed and lose their integrity. It has been established that within 28 hours of exposure to thermal-oxidative aging, polyethylene films are destroyed and lose their integrity.In the process of composting, the relative elongation at break of samples treated with UV decreases by 1.5-2 times compared to the values before composting. When composted for 7 months, the samples did not change their size, and their weight did not change either.Conclusion. Studies by the sanitary-chemical method made it possible to determine that in the environment of sodium chloride and distilled water after three weeks of exposure to polyethylene films containing the additive, a pungent odor is determined that exceeds the criterion of 2 points. Thus, such films cannot be used for food contact.
Publisher
Moscow State University of Food Production
Subject
General Earth and Planetary Sciences,General Environmental Science
Reference18 articles.
1. Kirsh I.A., Beznaeva O.V., Bannikova O.A., Romanova V.A., Barulya I.V. Development of biodegradable polymer compositions based on the waste of the agro-industrial complex / International journal of advanced biotechnology and research. - Volume 10, Issue 2, 2019, Page 15-23
2. Mihai Brebu Environmental Degradation of Plastic Composites with Natural Fillers—A Review // Polymers 2020, 12(1), 166; https://doi.org/10.3390/polym12010166 https://www.mdpi.com/2073-4360/12/1/166 .
3. Omar Faruk,Andrzej K. Bledzki,Hans-Peter Fink,Mohini Sain Progress Report on Natural Fiber Reinforced Composites // Macromolecular Materials and EngineeringVolume 299, Issue 1 p. 9-26 https://onlinelibrary.wiley.com/doi/full/10.1002/mame.201300008 .
4. Omar Faruk, Andrzej K., Bledzki, Hans-Peter Fink, Mohini Sain Biocomposites reinforced with natural fibers: 2000–2010 // Progress in Polymer Science Volume 37, Issue 11, November 2012, Pages 1552-1596 https://www.sciencedirect.com/science/article/pii/S0079670012000391 . 3. A. A. Popov Biodegradable Polymer Compositions Based on Polyolefins // Polymer Science, Series A volume 63, pages623–636 (2021) https://link.springer.com/article/10.1134/S0965545X21060092?error=cookies_not_supported&code=47e22b8a-bfbd-4adb-9c7b-f9a99d2e63e4
5. Biorazlagaemyi polietilen: osobennosti i tekhnologiya proizvodstva // Yunitreid URL: https://unitreid-group.com/poleznoe/biorazlagaemyy-polietilen/