Kalit so‘zlar
uranium sorbtsiyasi
kriodestruksiya
past haroratga chidamlilik
zarracha o‘lchami
muzlash-erish sikllari
Iqtibos keltirish tartibi
Annotatsiya
Tadqiqot uran sorbtsiyasida qo‘llaniladigan ion-almashinish smolalarining past haroratga chidamliligi va kriodestruksiya xatti-harakatini o‘rganadi. AMP, BO-020, Purolite A-606, BD-706, Tulsion 3663, Amberlite IRA-120, Resinacs va Dowex-1 kabi sakkizta tijoriy smola granulometrik, mexanik va strukturaviy xususiyatlar bo‘yicha baholandi. Ayniqsa, AMP, BO-020 va A-606 muzlatishdan oldin va keyin alohida e’tiborga olindi. Natijalar muzlatish mexanik mustahkamlikni va o‘rtacha zarracha diametrini kamaytirishini, bu esa polimer matritsasining shikastlanishini ko‘rsatishini ko‘rsatdi. Buzilish darajasi zarracha o‘lchamiga kuchli bog‘liq edi: 0.3 mm dan kichik zarrachalar nisbatan barqaror bo‘lsa, 0.3–0.8 mm va 0.8 mm dan katta fraksiyalar yorilish va parchalanishga ko‘proq moyil bo‘ldi. Namlik miqdori va g‘ovak tuzilma ham muzlashdan kelib chiqadigan degradatsiyaga ta’sir ko‘rsatdi. Takroriy muzlash-erish sikllari kichikroq zarracha fraksiyalari tomon siljish va smola strukturasidagi o‘zgarishlarga olib keldi. Topilmalar uran olish va unga yaqin texnologik jarayonlarda past harorat sharoitida ion-almashinish materiallarini tanlash va ishlatish uchun asos yaratadi.
Adabiyotlar ro‘yxati
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Mualliflik huquqi (c) 2026 Safarov, G.T. (Author)