МИС ФТАЛОЦИАНИН ПИГМЕНТИНИ МОДИФИКАЦИЯЛАШ: ЖАРАЁН ПАРАМЕТРЛАРИ ВА КИНЕТИК ТАҲЛИЛ
Abstract
Hozirgi vaqtda ftalotsianin pigmentlarining termostabilligi, kimyoviy barqarorligi va eruvchanligini oshirish uchun turli modifikatsiya usullari qo‘llanilmoqda. Ushbu tadqiqot gidrotermal usulda dietilenglikol muhitida olingan mis ftalotsianin (CuPc) pigmentini sulfo-guruhlar bilan modifikatsiyalash jarayonini o‘rganishga bag‘ishlangan. Eksperimental tadqiqotlar natijasida optimal sharoit sifatida 120-160°C harorat, 4-6 soat reaksiya vaqti hamda natriygidrosulfat (Na₂HSO₄) ishtirokidagi o‘rtacha kislotali muhit tanlandi. Modifikatsiya jarayonida CuPc pigmenti eritmaga qo‘shilib, Na₂HSO₄ ta’sirida benzol halqalariga SO₃H guruhlari kiritildi, natijada pigmentning kimyoviy xossalari yaxshilandi. Reaksiya davomida aralashma qoramtir to‘q ko‘k tus oldi, modifikatsiya yakunlangach, CuPc-SO₃H cho‘kindi holida ajratilib, metanol yordamida yuvilib va 60-80°C da quritildi. Modifikatsiyalangan pigmentning fizik-kimyoviy xossalari yaxshilanib, uning suvda eruvchanligi va ishlatilish imkoniyatlari kengaytirildi. Ushbu tadqiqot natijalari gidrotermal modifikatsiya jarayonining samaradorligini oshirish va sanoat qo‘llanilishiga ilmiy asos yaratishga xizmat qiladi.
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