Emerald期刊
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作者:Nivin M. Ahmed , Walaa M. Abd El-Gawad ...
来源:[J].Pigment & Resin Technology(IF 0.616), 2017, Vol.46 (3), pp.181-193Emerald
摘要:Purpose(#br)This study aims to synthesize a series of new anticorrosive pigments using a new technique called “core-shell”. This technique is based on depositing thin surface layer of expensive, efficient anticorrosive pigment on a cheap extender. This extender forms the bul...
作者:Nivin M. Ahmed , Walaa M. Abd El-Gawad , Eglal M.R. Souaya
来源:[J].Pigment & Resin Technology(IF 0.616), 2018, Vol.47 (2), pp.116-126Emerald
摘要:Purpose(#br)Core-shell is structured particles having several chemical compositions. The advantage of these particles arise from their specific design, to be used in decreasing costs by using inexpensive material (natural ore or waste material) as carrier for thin shell of a...
作者:Nivin M. Ahmed , Mostafa G. Mohamed , Walaa M. Abd El-Gawad
来源:[J].Pigment & Resin Technology(IF 0.616), 2018, Vol.47 (3), pp.261-271Emerald
摘要:Purpose(#br)New types of phosphate pigments which are appropriate alternatives for hazardous chromate pigments have been prepared and evaluated. These new pigments were prepared via a new technique named core-shell. The core-shell materials consist of at least two separate phases...
作者:Nivin M. Ahmed , A.A. Ward
来源:[J].Pigment & Resin Technology(IF 0.616), 2017, Vol.46 (3), pp.161-171Emerald
摘要:Purpose(#br)This paper aims to study the role of organobentonite (OB) as a filler to improve the mechanical strength of styrene butadiene rubber (SBR). Organoclay was first prepared by modifying bentonite with different concentrations of N-cetyl-N, N, N-triethyl ammonium bromide....
作者:Nivin M. Ahmed , Walaa M. Abd El-Gawad ...
来源:[J].Pigment & Resin Technology(IF 0.616), 2014, Vol.43 (4), pp.201-211Emerald
摘要:Purpose(#br) – The purpose of this work is to prepare new core-shell pigments based on silca fume waste as core and ferrite pigments in the shell. Silica fume is a byproduct of the smelting process in the ferrosilicon industry. The reduction of high-purity quartz to silicon ...
作者:Salwa H El-Sabbagh , Nivin M. Ahmed
来源:[J].Pigment & Resin Technology(IF 0.616), 2015, Vol.44 (2), pp.57-73Emerald
摘要:Purpose(#br) – This paper aims to express in detail the rheological, morphological and thermal properties of unpigmented and pigmented styrene-butadiene rubber composites with new prepared inorganic pigment based on kaolin covered with a thin layer of calcium and magnesium o...
作者:... M. F. Zawrah , Nivin M. Ahmed , Magdy W. Sabaa
来源:[J].Pigment & Resin Technology(IF 0.616), 2015, Vol.44 (3), pp.131-142Emerald
摘要:Purpose(#br) – The purpose of this paper is to evaluate the efficiency of organobentonite (OB) as reinforcing filler in acrylonitrile-butadiene rubber (NBR). The composites were prepared using different loadings of OB and studying in details their properties. A series of OB ...
作者:Nivin M. Ahmed
来源:[J].Pigment & Resin Technology(IF 0.616), 2013, Vol.42 (1), pp.3-14Emerald
摘要:Purpose(#br) – Kaolin is a soft white mineral which has a large array of uses. It is most commonly referred to as “China clay”. Sources of this mineral can be found all over the world, its uses are multiple and diverse. It is a mineral belonging to the group of alumino-...
作者:Nivin M. Ahmed , Hassan S. Emira , Hesham M. Tawfik
来源:[J].Pigment & Resin Technology(IF 0.616), 2013, Vol.42 (3), pp.186-194Emerald
摘要:Purpose(#br) – Ion-exchange clays containing sodium such as bentonite and montmorillonite have the ability to exchange their cations. Few studies conducted with this type of ion-exchange pigments are not conclusive about their anticorrosive efficiency. The present research a...
作者:Nivin M. Ahmed , Adel Attia , Mohamed M. Selim
来源:[J].Anti-Corrosion Methods and Materials(IF 0.386), 2005, Vol.52 (6), pp.353-364Emerald
摘要:Purpose(#br) – Aims to study inhibitive properties of new compounds that are based on the Wurtzite structure of zinc oxide with an admixture of cobalt using zinc oxide as a reference. (#br)Design/methodology/approach(#br) – The conditions for the preparation of pigments usin...

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