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العنوان
Improvement of physical properties for polymeric sample used to preserve cultural heritage /
المؤلف
Asker, Noha Mohamed Abd-Elaziz.
هيئة الاعداد
باحث / نهى محمد عبد العزيز عسكر
مشرف / محروس شاكر ميخائيل
مشرف / عمرو محمد عبد الغنى
مناقش / عظيمة لطيف جرجس
مناقش / جهاد محمد صالح ابراهيم
الموضوع
Antibiotics. Physics.
تاريخ النشر
2019.
عدد الصفحات
150 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الفيزياء وعلم الفلك
تاريخ الإجازة
1/1/2019
مكان الإجازة
جامعة المنصورة - كلية العلوم - الفيزياء
الفهرس
Only 14 pages are availabe for public view

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from 150

Abstract

The present study includes preparation, characterization and evaluation of the structural and properties of the prepared systems. Polyvinyl chloride (PVC) \Polyvinyl acetate (PVAc) polymer blend with different mass fraction concentration were prepared using traditional solvent Casting technique. Fourier transform infrared (FTIR) is used to identify various vibrational groups presented with structural changes. FTIR spectrum has been approved that there is a strong interaction between the constituent of the system. X-ray diffraction pattern verified information about the nature (crystal/amorphous) lattice arrangement and reveals compatibility with the FTIR spectrum. The diffraction pattern approved the amorphous nature of all samples and there are no crystalline phases formed with the change in the concentrations of the constituent. Optical (UV\Vis) spectra showed good optical properties of the prepared samples. The optical energy gap and Urbach energy were calculated for further data interpretation. The Scanning electron microscope (SEM) reveals a uniform distribution of PVC with PVAc that ensures the miscibility and the homogeneity. Prepared films showed a good antibacterial characteristic against gram-positive pathogenic grams in contrast with gram-negative, fungal and yeast. After the simulation, the samples were examined by stereo microscope. The modified blend has a relatively good adhesion to the archeological samples and can be last to about (1 -3 years).