AP19676789 "Production of biodegradable plastic bags based on ethylene and corn starch"
Relevance
The project to create biodegradable polymers based on ethylene and starch with the addition of wheat and rice straw is relevant in the context of global environmental problems associated with the accumulation of plastic waste. The use of natural resources for the production of sustainable and environmentally friendly materials meets modern requirements for sustainable development and the transition to a closed-loop economy. The development of such polymers will reduce environmental pollution and the burden on landfills, as well as support agriculture through the use of local plant resources. This is an important step towards greener packaging and reducing the use of traditional plastic materials.
Purpose
Synthesis of a biodegradable polymer. Production of a biodegradable polymer based on grafting ethylene to corn starch in the presence of a free radical initiator. Biodegradable polymers have been characterized using a wide range of methods: Infrared spectroscopy (FT-IR), 1H NMR and 13C NMR, scanning electron microscope (SEM) with EDX, particle size and distribution, dispersion viscosity, TGA and DSC, GPS, contact angle, X-ray diffraction analysis, transmission electron microscope TEM, specific area surfaces.
Expected and achieved results
The novelty of the project is the combination of starch-modified ethylene with rice and wheat straw, dioctyl phthalate and calcium carbonate to produce biodegradable films. Starch has film-forming properties that can have applications in various fields such as food, packaging, and medical. The addition of husks from rice and wheat makes it possible to increase the degree of biodegradability of films, since these materials themselves are biodegradable. Dioctyl phtholate (DOTP) is a soft and flexible plasticizer that can be used to improve the technical characteristics of films such as strength, elasticity and thermal stability. Thus, biodegradable films based on ethylene and starch were obtained with the addition of wheat and rice straw, as well as a filler of calcium carbonate and dioctylphtholate. The optimal ratio of chemical reagents was determined, which consists of: ethylene - 1g, starch - 5g, wheat straw - 3g, rice straw - 2g, calcium carbonate - 9g, dioctylphtholate - 1g.
Research team members with their identifiers (Scopus Author ID, Researcher ID, ORCID, if available) and links to relevant profiles
Елигбаева Гульжахан Жакпаровна
List of publications with links to them
Yeligbayeva G. et al. The Effect of Calcium Carbonate, Rice, and Wheat Straw on the Biodegradability of Polyethylene/Starch Films //Polymer Crystallization. – 2024. – Т. 2024. – №. 1. – С. 8674988.