STUDY OF THE INFLUENCE OF VARIOUS FACTORS ON THE THERMO-OXIDATIVE DEGRADATION PROCESS OF JM-380 GRADE POLYPROPYLENE

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Published: 04.10.2025
DOI: https://doi.org/10.70769/3030-3214.SRT.3.3.2025.25
Keywords:
Polypropylene, destruction, thermoplastic, elastomer, block polymer, initiation, propagation, termination, IQ spectroscopy

Main Article Content

Babadjanov, J.E.
Senior Lecturer, Berdaq Karakalpak State University, Nukus, Uzbekistan
Mavlonov, Sh.B.
PhD in Technical Sciences, Associate Professor, Bukhara State Technical University, Bukhara, Uzbekistan
Khaitov, R.R.
Doctor of Technical Sciences, Senior Researcher, Bukhara State Technical University, Bukhara, Uzbekistan

Abstract

In this article, the influence of various factors - temperature, time, oxidizing medium, mixing speed, and the participation of stabilizers - on the thermooxodestruction process of JM-380 polypropylene was comprehensively studied. As a result, the following conditions were considered optimal for thermo-oxidative destruction of JM-380 polypropylene: temperature - 300 ± 10°C, processing time - 30-40 minutes, medium - oxygen atmosphere (≥15%). In the process of destruction carried out on the basis of these parameters, the molecular weight decreases by ~60%, the dispersity index is in the range of 1.8-2.2, and the appearance of functional groups is proven by IR spectroscopic analysis. As a result, the polymer-bitumen composition is highly homogeneous, elastic, and rheologically stable.

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Article Details

Issue

Vol. 3 No. 3 (2025)

Section

Chemical Technology and Construction
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How to Cite

Babadjanov, J. E., Mavlonov, S. B., & Khaitov, R. R. (2025). STUDY OF THE INFLUENCE OF VARIOUS FACTORS ON THE THERMO-OXIDATIVE DEGRADATION PROCESS OF JM-380 GRADE POLYPROPYLENE. Digital Technologies in Industry, 3(3), 177-182. https://doi.org/10.70769/3030-3214.SRT.3.3.2025.25

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