nucВестник НЯЦ РКNNC RK Bulletin1729-75161729-7885Национальный ядерный центр Республики Казахстан10.52676/1729-7885-2020-2-26-32nuc-237Research ArticleСтатьиИССЛЕДОВАНИЕ ВЛИЯНИЯ ЭЛЕКТРОННО-ЛУЧЕВОЙ ОБРАБОТКИ ПОЛИМЕРА СВМПЭ НА СТРУКТУРУ И МЕХАНИЧЕСКИЕ СВОЙСТВАINVESTIGATION OF THE EFFECT OF ELECTRON-BEAM PROCESSING OF UHMWPE POLYMER ON THE STRUCTURE AND MECHANICAL PROPERTIESРахадиловБ. К.RakhadilovB. K.

Усть-Каменогорск

Ust-Kamenogorsk

СагдолдинаЖ. Б.SagdoldinaZh. B.

Усть-Каменогорск

Ust-Kamenogorsk

sagdoldina@mail.ruБаятановаЛ. Б.BayatanovaL. B.

Ust-Kamenogorsk

РахымжановаК. Б.RahymzhanovaK. B.

Усть-Каменогорск

Ust-Kamenogorsk

СәндібекА. Қ.SandibekA. K.

Усть-Каменогорск

Ust-Kamenogorsk

Восточно-Казахстанский государственный университет им. С. АманжоловаКазахстанSarsen Amanzholov East Kazakhstan state universityKazakhstanВосточно-Казахстанский государственный технический университет им. Д. СерикбаеваРоссияD. Serikbayev East Kazakhstan state technical universityRussian Federation202030062020022632Copyright © Рахадилов Б.К., Сагдолдина Ж.Б., Баятанова Л.Б., Рахымжанова К.Б., Сәндібек А.Қ., 20202020Рахадилов Б.К., Сагдолдина Ж.Б., Баятанова Л.Б., Рахымжанова К.Б., Сәндібек А.Қ.Rakhadilov B.K., Sagdoldina Z.B., Bayatanova L.B., Rahymzhanova K.B., Sandibek A.K.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://journals.nnc.kz/jour/article/view/237

В настоящей работе, представлены результаты исследования влияния электронно-лучевой обработки (ЭЛО) на структуру и механические свойства сверхвысокомолекулярного полиэтилена (СВМПЭ). ЭЛО образцов СВМПЭ осуществлялось на промышленном импульсном ускорителе ИЛУ-10. Энергия электронов варьировалась в пределах 2,5–4,5 МэВ, а доза облучения варьировалась в пределах 2–9 МГр. Методом дифференциально-сканирующей калориметрии определены термические характеристики полимерных образцов. Проанализировано влияние облучения на процесс кристаллизации полимера. Было обнаружено, что эффект образования сшивок не является существенным в отношении кристаллической структуры (толщины ламелей) и доза облучения почти не влияет на температуру плавления СВМПЭ. Полученные инфракрасные спектры показали, что во время ЭЛО в образцах СВМПЭ происходит окисление в результате химических реакций полиэтиленовой цепи с кислородом. Установлено, что ЭЛО приводит к изменению морфологии поверхности, то есть поверхность становится шероховатой, увеличивается глубина неровности и структура сферолитов. Результаты механических испытаний показали, что после ЭЛО прочность и твердость СВМПЭ незначительно увеличиваются.

This work presents the results of research on the influence of electron beam processing (EBP) on the structure and mechanical properties of ultrahigh molecular weight polyethylene (UHMWPE). EBP of UHMWPE samples was carried out on an industrial pulse accelerator ILU-10. The electron energy varied in the range of 2.5–4.5 MeV, and the radiation dose varied in the range of 2–9 MGy. Thermal characteristics of polymer samples were determined by differential scanning calorimetry. The influence of irradiation on the polymer crystallization process is analyzed. It was discovered that the effect of crosslinking is not significant about the crystal structure (thickness of the lamellae) and the radiation dose almost does not affect the melting temperature of UHMWPE. The obtained infrared spectra showed that during EBP, the UHMWPE samples occur oxidation as a result of chemical reactions of the polyethylene chain with oxygen. Installed, that EBP leads to a change in the surface morphology, that is, the surface becomes rough, the depth of irregularity and the structure of spherulites increases. The results of mechanical tests showed that after EBP, the strength and hardness of UHMWPE increase slightly.

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The authors declare that there are no conflicts of interest present.