Joint influence of γ–irradiation and high temperature shear grinding on the IR spectra and surface–energy properties of polyethylene

Allayarov, Sadulla R.; Confer, Matthew P.; Demidov, Sergei V.; Malkov, Georgii V.; Bogdanova, Svetlana A.; Shaimukhametova, Ilgiza F.; Nikolsky, Vadim G.; Perukhin, Yurii V.; Podvalnaya, Yuliya V.; Zyukin, Igor V.; Dixon, David A.

doi:10.1016/j.polymer.2021.124342

Joint influence of γ–irradiation and high temperature shear grinding on the IR spectra and surface–energy properties of polyethylene

Journal Article · Tue Nov 09 23:00:00 EST 2021 · Polymer

DOI:https://doi.org/10.1016/j.polymer.2021.124342· OSTI ID:1977591

Allayarov, Sadulla R. ^[1]; ^[2]; Demidov, Sergei V. ^[3]; ^[3]; Bogdanova, Svetlana A. ^[4]; Shaimukhametova, Ilgiza F. ^[4]; Nikolsky, Vadim G. ^[5]; Perukhin, Yurii V. ^[4]; Podvalnaya, Yuliya V. ^[3]; ^[3]; ^[2]

Russian Academy of Sciences (RAS), Chernogolovka (Russian Federation); OSTI
University of Alabama, Tuscaloosa, AL (United States)
Russian Academy of Sciences (RAS), Chernogolovka (Russian Federation)
Kazan National Research Technological University (Russian Federation)
Russian Academy of Sciences (RAS), Moscow (Russian Federation)

The optical and surface-energy properties of polyethylene (PE) subjected to γ-irradiation and post-radiation, high temperature, shear grinding are presented. Comparison of the IR spectra of the initial and γ-irradiated PE shows that oxygen-containing groups and unsaturated bonds in the polymer macromolecules are formed and accumulate during their radiolysis in air, increasing with γ-irradiation dose. A redistribution of the products of radiation-chemical conversion on the surface of the polymer granules throughout the entire volume of the powder occurs after high-temperature shear milling to a powder as observed in the IR spectrum. Polar functional groups due to oxidation reactions are observed on the surface layer of the sample after post-radiation grinding. Furthermore, the initial polymer surface is weakly basic with an acidity parameter of -0.34. The value of the acidity parameter of the sample made of ground irradiated PE has an acidic surface with an acidity parameter of 0.65. γ irradiation of the secondary processing of PE waste with high-temperature shear grinding is a promising approach to obtain a secondary PE powder with specified parameters and different degrees of functionalization.

View Accepted Manuscript (DOE)

Research Organization:: University of Alabama, Tuscaloosa, AL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)

Grant/Contract Number:: SC0018921

OSTI ID:: 1977591

Journal Information:: Polymer, Journal Name: Polymer Journal Issue: C Vol. 237; ISSN 0032-3861

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Joint influence of γ–irradiation and high temperature shear grinding on the IR spectra and surface–energy properties of polyethylene

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