Kinetics of Radiation–Oxidative Aging of HDPE Fibers with Simultaneous Degradation and Crosslinking of Macromolecules

Авторы: Dalinkevich A.A., Piskarev I.M., Fomin L.V., Nenasheva T.A.
Журнал: High Energy Chemistry
Том: 58
Номер: 1
Год издания: 2024
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 120
Последняя страница: 126
DOI: 10.1134/S001814392401004
Аннотация: Kinetics of the decline in the strength of high-density polyethylene fibers by X-ray irradiation in air at absorbed dose rates ranging within 0.02–15 Gy/s has been studied. It has been shown that strength of irradiated polyethylene fibers decreases to a certain limiting value depending on the dose rate and can be described by the kinetics of a reversible pseudo-first-order reaction. The proposed structural-kinetic model of radiation–oxidative aging of fibers takes into account the opposite effects of degradation and crosslinkingof tie macromolecules on the strength of the oriented polymer (fiber), the interrelation of the kinetics of radiation-assisted oxidative transformations, and the structural features of the oriented polymer. The model agrees well with experiment and makes it possible to describe the change in the strength of an oriented polymerduring the simultaneous occurrence of processes of radiation–oxidative degradation and crosslinking of macromolecular chains.
Добавил в систему: Фомин Леонид Викторович

№	Имя	Описание	Имя файла	Размер	Добавлен
1.	Полный текст		HVE_2024_Dalinkevich_58_1_angl.pdf	764,1 КБ	26 марта 2024 [PiskarevIM]
2.	Полный текст		HighEn_2024_No1.pdf	662,4 КБ	22 февраля 2024 [PiskarevIM]
3.	Полный текст	Полный текст статьи	HEC120.pdf	764,1 КБ	17 апреля 2024 [lef1975]

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