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Register a new userPreparation and Characterization of Epoxy Polymer – Conductive Carbon Black Composites
تحضیر و توصیف مادة مركبة بولیمیر الإیبوكسي - ھباب الفحم الناقل
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تم في هذا العمل البحثي تحضیر مواد مركبة نانویة تتكون من بولیمیر الإیبوكسي و هباب الفحم الناقل، حیث تم تحضیر هذه المواد بنسب مختلفة من هباب الفحم الناقل، وقد تم استخدام مركب ( ancamine2280 كعامل تصالب.
epoxy – Conductive Carbon Black (Epoxy – CCB) nanocomposite was prepared with different CCB/Epoxy ratios and ancamine 2280 as a curing agent.
References used
Dr. Adnan A. Abdul Razak , Dr. Najat j. Salah, Waffa Abdul Kazem, “Electrical And Thermal Properties Of Epoxy Resin Filled With Carbon Black”, Eng & Tech. Journal , Vol 27, NO.11, (2009)
Th. V. Kosmidou, A. S. Vatalis, C. G. Delides, E. Logakis, P. Pissis, G. C. Papanicolaou, “Structural, mechanical and electrical characterization of epoxy-amine/carbon black nanocomposites”, eXPRESS Polymer Letters Vol.2, No.5, p 364 – 372, (2008)
Saeed Rastegar, Zahra Ranjbar, “Cathodically electro-deposited carbon-black-epoxy composite films as primer in two-coat electro-deposition”, Progress in Organic Coatings 56, P 234 – 239, (2006)
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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.
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.
Modified resole resin/short silica fiber composite materials have been prepared.
The resole resin was synthesized and then blended with Polyvinylbutyral (PVB)
polymer with different weight ratios to reduce its brittleness. The mechanical,
thermal
and physical properties of Resol- PVB blends were studied to
characterize these blends and select the most appropriate mixing ratio of
polyvinyl butyral with resole resin, which was identified at 15 phr of polyvinyl
butyral for every 100 parts of resole resin.
Composite materials
ألیاف السیلیكا القصیرة
راتنج الریزول المعدل
مواد مركبة
مواد شفافة راداریاً
اختبارات فیزیائیة و میكانیكیة و كھربائیة
اختبارت حراریة و اختبارات اللفح الحراري
محلل الشبكة الشعاعي
Short silica fiber
modified resole resin
radio transparent material
physical mechanical and electrical tests
thermal and ablation test
vector network analyzer
S – Parameters
المزيد..
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.
In this work, Rheological and mechanical properties of acrylonitrile –
butadiene – styrene/ corn starch composites (ABS/starch) were studied. The
composites were prepared using a laboratory scale single screw extruder.
Rheological properties were
determined using the single screw extruder, and
apparent shear rate (γ), apparent shear stress (τ), apparent viscosity (η), non-
Newtonian index (n) and flow activation energy at a constant shear rate (Eγ)
and constant shear stress (Eτ) were determined. Mechanical properties in term
of tensile tests were performed using Testometric M350-10KN, stress at break,
strain at break and Young's modulus were determined. Rheological results
showed that the composites are pseudo plastic in behavior, and the apparent
viscosity of the composites increases with increasing starch content above the
additive rule which indicates a partial compatibility in the composite, also it
was found that the flow activation energy of the composite increases with
increasing starch content. Also it was found that the activation energy value at
a constant shear stress is more than that at a constant shear rate. The
mechanical results showed that the strain at break of the composite decreases
sharply by the presence of starch, whereas the young's modulus increases with
increasing starch content.
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