Poly(o-aminophenol), poly(o-aminothiophenol), poly(m-anisidine) and polyaniline have been prepared by chemical oxidation of their monomers using ammonium persulfate at 0°C. The polymers were characterized structures confirmed elemental analysis spectrophotometric measurements (FTIR, UV-VIS, 1 HNMR, MS, XRD TGA). evaluated as corrosion inhibitors for steel protection measuring rates in comparison with the previously control sample. show a high performance efficient inhibitors, promising...

Historically, paints designed to protect steel and other metals have been formulated using anticorrosive chromate pigments, which are currently under environmental restrictions. During the investigation reported here, various phosphate compounds. The pigments prepared were characterised a variety of chemical spectrophotometric methods analysis including emission atomic absorption, transmission electron microscope, X‐ray diffraction, in addition thermal gravimetric analysis. also evaluated...

Purpose – The purpose of this paper is to present the preparation core-shell ferrites/kaolin pigments and comparing their efficiency in protecting metal substrates original ferrites which were also prepared. Core-shell structured particles are recently gaining lots importance due exciting applications different fields; these constructed from cores shells chemical compositions show ultimately distinctive properties varied materials counterparts. new pigment based on shell that comprises only...

Purpose – The purpose of this work is to prepare new core-shell pigments based on silca fume waste as core and ferrite in the shell. Silica a byproduct smelting process ferrosilicon industry. reduction high-purity quartz silicon at temperatures up 2,000°C produces SiO 2 vapours which then oxidize condense low-temperature zones tonnage amounts tiny particles consisting non-crystalline silica that collected sold rather than being land-filled because nowadays there increasing environmental...

Purpose The purpose of the paper is to examine synthesis polyaniline (PAn) and poly( m ‐toluidine) (PmT) via an inverse emulsion polymerisation pathway evaluate synthesised polymers as corrosion inhibitors for steel protection in surface coatings. Design/methodology/approach PAn PmT were prepared by using ammonium persulphate initiator sodium dodecylbenzene sulphonate (SDBS) emulsifier. Spectrophotometric measurements conducted characterise polymers. Latex paint formulations dry films...

Itaconic acid was reacted with phenylene diamine ( ortho , meta and para ) o ‐tolidine in boiling dekalin, using Dean Stark apparatus. The polymers prepared were evaluated for their suitability as antioxidants natural rubber vulcanizates. amide showed high efficiency vulcanizates, exceeding the performance of commercial antioxidants. In addition, results obtained are encouraging support use these from both environmental economical points view.

Corrosion never sleeps, therefore, industries rather than governments do their best to resist the different types of corrosion by all possible methods and techniques particularly in high-risk areas. Nevertheless, organic coatings are considered most widely applied route for protection metallic surfaces from they a special importance transport infrastructure. Consequently, main goal this study is provide detailed overview protective pigment/inhibitor system based on boron phosphate...

Dolomite is of immense importance for industrial applications. It occuring in many locations Egypt. Complete investigation and identification the ore has been performed via chemical analysis spectro‐photometric measurements using X‐ray fluroscence, diffraction electron microscope. The pattern indicated that Egyptian dolomite a crystalline material microscope showed it lameller shape. sample was evaluated as an extender pigment according to standard international specifications proved be...

Purpose Owing to the ongoing demand for elimination of chromate‐ and lead‐based pigments need identify effective replacements, phosphate molybdate are finding increasing application in coating industry. In study reported here, phosphomolybdates, newest second generation had been prepared, characterised evaluated as anti‐corrosive applications. Design/methodology/approach this study, Ca, Zn Ca‐Zn phospomolybdates were prepared by chemical analysis spectrophotometric measurements, X‐ray...

Highly efficient heat‐resistant paint formulations based on Egyptian manganese ore (high and medium grades) silicon resin were prepared. The heat‐resistance efficiency as well the physico‐mechanical properties of painted films evaluated. Promising results deduced, showing that imparts protection for substrate up to 450°C. anticorrosive these moderate but their paints was improved by adding 1 per cent melamine constituents.

Silica waste fume is a byproduct produced in the manufacture of ferrosilicon. The sample, which was very fine and rich silica, characterized using chemical spectrophotometric measurements (XRD electron microscope). silica incorporated anticorrosive paint formulations based on alkyd resin to replace partially or completely imported diatomaceous silica. various were evaluated physico‐mechanical properties as well corrosion protection painted films have been studied. Promising results achieved,...

Phthalocyanine polymers, either metal-free or containing the transition elements Cu, Co, Cr and Fe, respectively, have been prepared from pyromellitic dianhydride by conventional urea fusion method. The polymers were characterized their structures confirmed using elemental analysis, spectrophotometric measurements as IR, UV-VIS, XRD, thermal gravimetric analysis (TGA). calculated values of activation energy indicate semiconducting behavior well Cu Fe phthalocyanine within temperature range...

This paper reports on the preparation of six formulations (G1‐G6) containing mixed soap greases based cotton stock, aromatic extract, heavy alkylate and lube base oil. The physicochemical properties these ingredients were characterised. consistency, dropping point mechanical stability formulated assessed tested in accordance with National Laboratory for Grease Institute standards, compared Egyptian Standards. grease G4 proved to be best. work reported also includes itaconyl‐o‐tolidine‐,...

ABSTRACT Binary chelating copolymers were prepared by emulsion copolymerization of acrylic acid (AA) with butyl acrylate (BuA), butylmethacrylate (BuMA) and styrene (St) using potassium persulphate/sodium meta bisulphite as a redox initiation system sodium dodecylbenzene sulfonate an emulsifier. It was found that the rate decreased increasing AA content. Based on data (BuA/AA), (BuMA/AA) (St/AA) in polymerization process, reactivity ratios systems calculated discussed. The structures...

Abstract In this study, new efficient antimicrobial hybrid amide biocomposites were developed through the condensation of chitosan with monocarboxylic cobalt-phthalocyanine (MC-CoPc) and carboxymethyl cellulose (CMC), individually, as well chitosan/(MC-CoPc)/glutamic acid chitosan/(MC-CoPc)/CMC using a Dean Stark apparatus in presence xylene an aprotic solvent for 4 h until required amount water was collected. The resulting biopolymer adducts filtered, air-dried, washed several times...

Modifies short and medium alkyd resins using perfluori‐nated urethane toluene isocyanate (PFUTI), incorporates the modified in a set of paint formulations containing different ratios zinc phosphate as an inhibitive pigment. Achieves promising results illustrates corrosion‐protective properties various also formulation free Shows enhancement corrosion protection efficiencies by improvement hydrophobicity resin with PFUTI. In view these results, minimizes or neglects most expensive pigments...

The corrosion protective properties of the primer films prepared from Egyptian manganese ore (high and medium grades) epoxy resin have been determined by immersing coated in artificial sea water for 28 days. good indicate that can be satisfactorily used anticorrosive formulations steel surface protection.

Presents findings from a study of the effects treating unbleached bagasse paper sheets with different resin solutions. Unbleached kraft were treated solutions such as nitrocellulose, melamine formaldehyde, silicone, short and medium alkyd physico‐mechanical properties modified tested. The strength highly improved especially in case treatment formaldehyde silicone effect dipping time concentrations solution on was also investigated. Physico‐mechanical thermally resins clarified. Concludes...