Keywords
gidrofob qoplama
polivinilspirt
toluilen-2
4-diizotsianat
rux atsetat
azot–rux kompleksi
antibakterial xossa
kontakt burchak
Cassie–Baxter holati
IK- spektroskopiya.
How to Cite
Abstract
Maqolada paxta matolari sirtiga polivinilspirti (PVS), toluilen-2,4- diizotsianat (TDI) va rux(II) atsetat asosida hosil qilingan azot–rux(II) organik kompleksi yordamida ko‘p funksional qoplama hosil qilishning ikki bosqichli usuli ishlab chiqilgan. Birinchi bosqichda mato 1,5 mass.% li PVS suvli eritmasi bilan modifikatsiyalanib, ikkinchi bosqichda TDI va Zn(CH₃COO)₂ ning atseton eritmasiga shimdirildi. Termik qayta ishlash natijasida selyuloza, PVS va TDI o‘rtasida uretan bog‘lari, hamda azot tutuvchi guruhlar va rux ioni o‘rtasida koordinatsion komplekslar hosil bo‘ldi. IK-spektroskopiya (3446, 1743, 1707, 1535, 1247 sm⁻¹) va yorug‘lik mikroskopiyasi natijalari qoplamaning tola sirtiga bir tekis taqsimlanib, tolalar orasidagi havo cho‘ntaklarini saqlab qolganini tasdiqladi. Suvning statik kontakt burchagi 130–140° ni tashkil etib, mato suvni qaytarish xususiyatiga ega bo‘ldi. Modifikatsiyalangan matoning Escherichia coli va Staphylococcus aureus shtammlariga nisbatan o‘sishni inhibirlash darajasi mos ravishda 80–85 va 85–90% ni tashkil etdi. Qoplama 5 marta yuvilgandan keyin ham o‘zining gidrofob (θ = 125–135°) va antibakterial (72–82%) xossalarini saqlab qoldi.References
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Copyright (c) 2026 Anvar Akramovich Xolov, Jahongir Baxromovich Fayziyev, Sayfulla Ibodulloyevich Nazarov (Author)