Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
7
4
2014
01
07
Cathodic electrodeposion of nano Titania along the epoxy based coating and evaluation of its anticorrosion properties
227
235
EN
M.
Rashvand
Surface Coatings and Corrosion Department, Institute for Color Science and Technology
marashvand@icrc.ac.ir
Z.
Ranjbar
Surface Coating and Corrosion Department, Institute for Color Science and Technology
ranjbar@icrc.ac.ir
10.30509/pccc.2014.75836
Effect 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.
Electrodeposition,Nanotitania,electrochemical,Impedance spectroscopy,Corrosion Resistance
https://pccc.icrc.ac.ir/article_75836.html
https://pccc.icrc.ac.ir/article_75836_508d42a585c5fee6d77608c85d6041ee.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
7
4
2014
01
11
Study the curing behavior and mechanical properties of Pigmented UV curable epoxy acrylate monomers
237
244
EN
P.
Kardar
Surface Coating and Corrosion Department, Institute for Color Science and Technology
p_kardar@yahoo.com
M.
Ebrahimi
Polymer Engineering and Color Technology Departmen, Amirkabir University of Technology
ebrahimi@aut.ac.ir
S.
Bastani
Surface Coating and Corrosion Department, Institute for Color Science and Technology
bastani@icrc.ac.ir
10.30509/pccc.2014.75840
The 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.
UV curable formulations,Pigmented coatings,Curing,Reactive diluents,Epoxy acrylate,Mechanical properties
https://pccc.icrc.ac.ir/article_75840.html
https://pccc.icrc.ac.ir/article_75840_04ebe971e45fcf4b634cb176be4944c8.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
7
4
2014
01
01
Adsorption of Reactive Blue 19 onto activated carbon prepared from pomegranate residual by phosphoric acid activation: Kinetic, Isotherm and Thermodynamic studies
245
257
EN
E.
Radaei
Department of Civil and Environmental Engineering, Amirkabir University of Technology
elham.radaei@gmail.com
M.
Alavi moghaddam
Department of Civil and Environmental Engineering, Amirkabir University of Technology
alavim@yahoo.com
M.
Arami
Department of Textile Engineering, Amirkabir University of Technology
arami@aut.ac.ir
10.30509/pccc.2014.75839
In 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.
Adsorption,Pomegranate Residual,Phosphoric acid,Reactive Blue 19,Kinetic and isotherm study,Thermodynamic
https://pccc.icrc.ac.ir/article_75839.html
https://pccc.icrc.ac.ir/article_75839_c33166f877433006eda5004387289ebb.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
7
4
2014
03
20
Multi-step Coating of Monodisperse Silica Spheres by Titania Nanoparticles Base on Electrostatic Attraction Strategy
259
268
EN
M.
Khame Forosh
School of Metallurgy and Materials Engineering, Iran University of Science and Technology
m.zarrinkhame@gmail.com
V.
Tajer Kajinebaf
Department of Materials Engineering, Takestan Branch, Islamic Azad University
vtajer@yahoo.com
H.
Sarpoolaky
School of Metallurgy and Materials Engineering, Iran University of Science and Technology
hsarpoolaky@iust.ac.ir
10.30509/pccc.2014.75841
TiO2-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.
Titania nanoparticle,Silica microsphere,Core,SHELL,multi,step coating,Stöber method
https://pccc.icrc.ac.ir/article_75841.html
https://pccc.icrc.ac.ir/article_75841_1f765ab1b37a31a00c9507b8454db08b.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
7
4
2014
04
20
Mild steel surface pretreatment using phosphoric acid-inhibitor solution
269
284
EN
A.
Ghanbari
Polymer Engineering and Color Technology Department, Amirkabir University of Technology
alirezaghanbari@aut.ac.ir
M. M.
Attar
Department of Polymer Engineering and Color Technology , Amirkabir University of Technology
attar@aut.ac.ir
10.30509/pccc.2014.75842
In 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.
Benzimidazole,EIS,polarization,EDS analysis,Pretreatment,Phosphoric acid,Epoxy Coating
https://pccc.icrc.ac.ir/article_75842.html
https://pccc.icrc.ac.ir/article_75842_103c0e8a310e8b9d6afe0de4bf43681c.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
7
4
2014
06
20
The Inkjet Printing of Reducible AgNPs amperometric glucose biosensor Electrodes
285
294
EN
Z.
Abadi
Textile Engineering.Department, University of Guilan
abadi_tex82@yahoo.com
V.
Mottaghitalab
Textile Engineering.Department, University of Guilan
motaghitalab@guilan.ac.ir
S. M.
Bidoki
0000-0002-3634-6746
Textile Engineering.Department, Yazd University
smbidoki@yazd.ac.ir
A.
Benvidi
Textile Engineering.Department, Yazd University
abenvidi@yazduni.ac.ir
10.30509/pccc.2014.75837
The 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.
Silver nanoparticles,Electrochemical Biosensor,Inkjet Printing,Flexible electrode,Chemical Deposition
https://pccc.icrc.ac.ir/article_75837.html
https://pccc.icrc.ac.ir/article_75837_a3666755cd22dbae33ca8243d9df11fa.pdf
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
7
4
2014
08
20
Effect of Ink Formulation and Paper Surface Morphology on Ink-jet Printing Properties
295
304
EN
A.
Soleimani-Gorgani
Department of Printing Science and Technology, Institute for Color Science and Technology
asoleimani@icrc.ac.ir
M.
Jalili
Department of Printing Science and Technology, Institute for Color Science and Technology
jalili@icrc.ac.ir
10.30509/pccc.2014.75838
The 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.
Ink,Jet,Printing,Humectants,Alcohols
https://pccc.icrc.ac.ir/article_75838.html
https://pccc.icrc.ac.ir/article_75838_68585264e04058acf4c07679a6ded978.pdf