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Register a new userPreparation and Characterization of Epoxy Resin / Cycloaliphatic Amine Coating
تحضير طلاء و توصيفه من راتنج ايبوكسي / أمين حلقي اليفاتي
1907
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تناول هذا البحث تحضير طلاء من راتنج الإيبوكسي و عامل التصالب الأميني (المقسي) في درجة حرارة المخبر باستعمال نسب مئوية مختلفة من عامل التصالب و دراسة التغيرات البنيوية في هذا الطلاء بواسطة مطيافية الأشعة تحت الحمراء في المجال المتوسط و تحديد درجة التصالب للطلاء.
In this research project, the EPON 828 /Hardener 2512 epoxy resin coating has been prepared at the ambient laboratory temperature with different epoxy/ hardener ratio.
References used
B. Ellis, 1993. Chemistry and Technology of Epoxy Resins, chapt. 1, Chapman & Hall, London
K. P. Unnikrishnan, 2006. Studies on The Toughening of Epoxy Resin, Cochin University of science and technology, India
C.A.Harper, E.M.Petrie, 2003. Plastics Materials and Processes, John Wiley & Sons, Inc, Canada
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Surface protective thin layers of high temperature oxidation resistant aluminum
oxide Al2O3, have been prepared by the sol-gel processing, using the spin coating
method. In order to increase layer thickness, corundum suspension was added to
the al
umina sol.
In this research work, an epoxy polymer- Carbon Black composite has been
prepared and characterized regarding the effects of adding carbon black to
epoxy polymer on some structural properties such as polymerization behavior,
cross-linking reaction
time and yield and some properties e. g. glass transition
temperature (Tg), Young modulus (E) and flexural strength (σ).
The cross-linking reaction and glass transition temperature were studied by
Differential Scanning Calorimetry (DSC), and the mechanical tests were done
by Universal Testing Machine.
يعد الميتانول و الإيتانول من أكثر المحلات شيوعاً، و بما أن درجة غليانها أقل من مئة
درجة مئوية فإنها تتطاير بشكل سريع. و على سبيل المثال، يستعمل الميتانول في تصنيع
الأصبغة و العقاقير و العطور.. و هو شديد السمية، لذلك من الضروري تطوير محسات لكشفه.
أ
ما غاز الأمونيا فهو من ملوثات الهواء و له مصادر كثيرة مثل صناعة الأسمدة و أنظمة
التبريد.. و من هنا أهمية كشفه.
In this research we have synthesized a new macrocyclic Schiff base (II)
containing nitrogen- oxygen donor atoms which was designed and synthesized
by reaction of: 1,4– bis (6',6'- methoxy -3- formyl phenyl)-1,4- dioxa butane (I).
Identification of
this macrocyclic schiff base: (II) 1,16- Diaza–[3,6;11,14-di
(6',6'- methoxy phenyl)]-7,10,19,22 - tetraoxa cyclo tetra icozane-15,1dien was
determined by (LC-MS) and spectroscopy (IR). The liquid- liquid extraction of
metal such as Zn2+, Pb2+ and Ni2+ from aqueous phase to organic phase which
doesn't in water. The effect of chloroform and dichloromethane as organic
solvents over the metal extractions was investigated at 25± 0.10C by using
atomic absorption Spectrometer and extraction percentage was calculated.
epoxy – Conductive Carbon Black (Epoxy – CCB) nanocomposite was
prepared with different CCB/Epoxy ratios and ancamine 2280 as a curing
agent.
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