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العنوان
FORMULATION OF NEW MODIFIED ALKYD RESINS AND THEIR APPLICATION IN THE FIELD OF SURFACE COATINGS /
المؤلف
Abd El Hady, Mohamedy El Sayed.
هيئة الاعداد
باحث / محمدي السيد عبد الهادي محمد
مشرف / علياء أبو شعيشع شلبى
مشرف / فرج عبد الحى أحمد
مشرف / منال محمد الشهاوى
تاريخ النشر
2017.
عدد الصفحات
249 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
Organic Chemistry
تاريخ الإجازة
1/1/2017
مكان الإجازة
جامعة عين شمس - كلية العلوم - Chemistry
الفهرس
Only 14 pages are availabe for public view

from 249

from 249

Abstract

The soya bean based N,N-bis(2-hydroxyethyl)thiophene-2-carboxamide (HETCA)-modified alkyd resins and N,N-bis(2-hydroxyethyl)furan-2-carboxamide (HEFCA)-modified alkyd resins are prepared by partial replacement of glycerol with each (HETCA) 3 and (HEFCA) 4, respectively, with both phthalic anhydride (PA) and Soya bean oil fatty acids (FA).
The HETCA- and HEFCA-modified alkyd resins were entered in final coating formulations and their performances were evaluated and compared using ASTM which involved the measurement of their phyisco-mechanical properties. In general, the results show that the modification enhances both phyisco-mechanical and chemical properties. Additionally, morpholino(thiophen-2-yl)methanone 5 and morpholino(furan-2-yl)methanone 6 are prepared and their anticorrosion effect is investigated by use them as an additive with standard (commercial) alkyd resin in zinc phosphate primer formulations, and as an additive with some of previously prepared HETCA- and HEFCA-modified alkyd resins in the same primer formulations. In general, both of corrosion inhibitors (5) and (6) improve the corrosion resistance at dosage 0.5 % of the total formulation weight. The addition of morpholino(thiophen-2-yl)methanone 5 to a certain sample of HETCA-modified alkyd resins gives the maximum corrosion resistance by Synergism.