Institute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21347420140107Cathodic electrodeposion of nano Titania along the epoxy based coating and evaluation of its anticorrosion properties2272357583610.30509/pccc.2014.75836ENM.RashvandSurface Coatings and Corrosion Department, Institute for Color Science and TechnologyZ.RanjbarSurface Coating and Corrosion Department, Institute for Color Science and TechnologyJournal Article20130608Effect of nano TiO2 particles on the corrosion properties of an epoxy based coatings was investigated. Coatings and nano Titania were applied on standard phosphated steel panels by cathodic electrodeposition simultaneously. The coated panels were immerged in 3.5 NaCl solution for 2880 hours 120 days. The SEM and EIS technique were used to investigate the electrodeposion of nano Titania particles and corrosion properties of coatings respectively. The results showed that the nano Titania could stabilize corrosion resistance of the coatings even after a prolonged immerging in 3.5 NaCl solution.https://pccc.icrc.ac.ir/article_75836_508d42a585c5fee6d77608c85d6041ee.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21347420140111Study the curing behavior and mechanical properties of Pigmented UV curable epoxy acrylate monomers2372447584010.30509/pccc.2014.75840ENP.KardarSurface Coating and Corrosion Department, Institute for Color Science and TechnologyM.EbrahimiPolymer Engineering and Color Technology Departmen, Amirkabir University of TechnologyS.BastaniSurface Coating and Corrosion Department, Institute for Color Science and TechnologyJournal Article20130423The formulations contained different acrylate monomer with different structure and functionalities and TiO2, were applied to obtain pigmented acrylic films by UV exposure. The conversion and mechanical characteristic were correlated. The results showed that there is a significant interaction between pigment, reactive diluents’ type and mechanical properties of coatings. It seems that cured films containing Isobornyl acrylate IBOA are claimed to have good flexibility, even though to obtain higher hardness and Tg, higher functionality such as dipentaerythritol pentaacrylate DIPEPA and dipentaerythritol hexaacrylate DPHAis needed. The Tg of the acrylate formulations increased with increasing functionality of monomer and the similar trends can be adopted for the hardness.https://pccc.icrc.ac.ir/article_75840_04ebe971e45fcf4b634cb176be4944c8.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21347420140101Adsorption of Reactive Blue 19 onto activated carbon prepared from pomegranate residual by phosphoric acid activation: Kinetic, Isotherm and Thermodynamic studies2452577583910.30509/pccc.2014.75839ENE.RadaeiDepartment of Civil and Environmental Engineering, Amirkabir University of TechnologyM.Alavi MoghaddamDepartment of Civil and Environmental Engineering, Amirkabir University of TechnologyM.AramiDepartment of Textile Engineering, Amirkabir University of TechnologyJournal Article20130521In this study, the adsorption of Reactive blue 19 onto pomegranate residual-based activated carbon PRAC was investigated in aqueous solution. The activated carbon prepared by phosphoric acid activation under air condition. PRAC was characterized for its surface chemistry by point of zero charge measurements, Scanning Electron Microscopy and nitrogen adsorption at 77 K. The effect of operational parameters including contact time, initial pH, adsorbent dose, initial dye concentration and particle size were studied. Results showed that an optimum dye removal efficiency 96.7 was observed at initial pH11, contact time5minutes, adsorbent dose3.25 g/L, initial dye concentration200 mg/L, and particle size63-149µm. The adsorption process was found to follow the Temkin isotherm equation R20.975 and second-order kinetic model R20.999. Furthermore, Thermodynamic parameters such as ΔG0, ΔH0, and ΔS0 were calculated.https://pccc.icrc.ac.ir/article_75839_c33166f877433006eda5004387289ebb.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21347420140320Multi-step Coating of Monodisperse Silica Spheres by Titania Nanoparticles Base on Electrostatic Attraction Strategy2592687584110.30509/pccc.2014.75841ENM.Khame ForoshSchool of Metallurgy and Materials Engineering, Iran University of Science and TechnologyV.Tajer KajinebafDepartment of Materials Engineering, Takestan Branch, Islamic Azad UniversityH.SarpoolakySchool of Metallurgy and Materials Engineering, Iran University of Science and TechnologyJournal Article20130825TiO2-SiO2 core-shell particles include of monodisperse silica core and nanostructured titania shell were synthesized by a multi-step coating process. The monodisperse silica spheres were synthesized by Stöber method and titania shell was obtained of a colloidal sol prepared by a hydrolysis–condensation reaction. The titania sol was deposited on monodisperse silica spheres by a multi-step coating method based on electrostatic attraction. Characterization was performed by DLS, SEM, DTA-TG, FT-IR and XRD. Also, the activity of the core-shell particles was evaluated using methyl orange photodegradation by UV–visible spectrophotometer. The mean particle size of the colloidal titania sol was determined about 20 nm. The particle size of TiO2-SiO2 core-shell was about 500 nm. The deposit of titania nanoparticles on silica spheres was caused to delay anatase-rutile transformation. The core-shell particles calcined at 650 °C showed a much higher photocatalytic activity than pure titania.https://pccc.icrc.ac.ir/article_75841_1f765ab1b37a31a00c9507b8454db08b.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21347420140420Mild steel surface pretreatment using phosphoric acid-inhibitor solution2692847584210.30509/pccc.2014.75842ENA.GhanbariPolymer Engineering and Color Technology Department, Amirkabir University of TechnologyM. M.AttarDepartment of Polymer Engineering and Color Technology , Amirkabir University of TechnologyJournal Article20130728In this study, a new mild steel surface pretreatment solution is introduced based on phosphoric acid containing a benzimidazole derivative as inhibitor. In this way, three different benzimidazole derivatives namely benzimidazole BI, 2-methyl benzimidazole 2MBI and 2-aminobenzimidazole 2ABI were studied in the 1M H3PO4 using DC and AC electrochemical techniques. Results revealed the better corrosion inhibition performance of 2ABI in the acidic medium. EDS analysis revealed that surface elemental composition of oxygen and phosphorus increased after pretreatment process, that could be attributed to formation of some compounds based on iron phosphate. EIS diagrams of the painted substrates showed that pre-treated mild steel using phosphoric acid-inhibitor provided higher corrosion protection performance than untreated mild steel during immersion in 3.5 w/w NaCl solution. Furthermore, acid wash process enhanced adhesion and cathodic disbonding resistance of painted mild steel.https://pccc.icrc.ac.ir/article_75842_103c0e8a310e8b9d6afe0de4bf43681c.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21347420140620The Inkjet Printing of Reducible AgNPs amperometric glucose biosensor Electrodes2852947583710.30509/pccc.2014.75837ENZ.AbadiTextile Engineering.Department, University of GuilanV.MottaghitalabTextile Engineering.Department, University of GuilanS. M.BidokiTextile Engineering.Department, Yazd UniversityA.BenvidiTextile Engineering.Department, Yazd UniversityJournal Article20131217The enzymes immobilization of the is crucially effective factor in biosensor preparation. Metal nanoparticles potentially able to immobilize the enzymes according to unique properties including large surface-to-volume ratio, high surface reaction activity, high catalytic efficiency, and strong adsorption ability. A novel and highly sensitive amperometric glucose biosensor was obtained by using the inkjet printing of Ag nanoparticles AgNPs on paper. In this method, AgNPs was chemically deposited by ejection of silver nitrate and ascorbic acid solutions onto paper as substrate. Inkjet deposited patterns were used as electrodes in different electrochemical experiments and their morphology were investigated by SEM observations. Results of cyclic voltammetry tests revealed that the Glucose oxidase was highly stabilized and immobilized on the surface of silver nanoparticles. Furthermore, the biosensor has a very high sensitivity of 8 µA/mM.mm2 and low detection limit also was estimated to be 5 mM. These results demonstrate that inkjet printing AgNPs have potential applications in glucose biosensors.https://pccc.icrc.ac.ir/article_75837_a3666755cd22dbae33ca8243d9df11fa.pdfInstitute for Color Science and Technology (ICST)Progress in Color, Colorants and Coatings2008-21347420140820Effect of Ink Formulation and Paper Surface Morphology on Ink-jet Printing Properties2953047583810.30509/pccc.2014.75838ENA.Soleimani-GorganiDepartment of Printing Science and Technology, Institute for Color Science and TechnologyM.JaliliDepartment of Printing Science and Technology, Institute for Color Science and Technology0000-0002-6818-0672Journal Article20131216The purpose of this study was to investigate the effect of type of alcohols and humectants in inks formulation, and the papers surface morphology on the ink-jet printing properties. In order to investigate the influence of alcohol and humectant types on printing properties, the optimum ink formulation from previous study, which contained C.I. Reactive Blue 21 Ink2 was formulated with different type of alcohols and humectants. The optical density and water fastness properties of printed papers were evaluated. The results indicated that, the optical density and water fastness of printed patterns depended more on papers surface morphology than the type of alcohols and humectants in ink formulation. Optimum optical density and good water fastness properties obtained on glossy coated ink-jet printed paper that have optimum nano-porous diameter on its coating layer.https://pccc.icrc.ac.ir/article_75838_68585264e04058acf4c07679a6ded978.pdf