Saeed Bastani

Saeed Bastani
Institute for Color Science and Technology | ICST · Department of Surface Coating and Corrosion

Professor

About

63
Publications
43,072
Reads
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777
Citations
Citations since 2016
19 Research Items
564 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
Introduction
PhD in 2006 at the Department of Polymer Engineering and Color Technology . In 2006, Assistant Professor at the Institute for Color Science and Technology(ICST).Associate Professor at ICST in 2013. Since 2014, head of the Surface Coatings and Corrosion Dept.
Additional affiliations
January 2006 - present
Institute for Color Science and Technology
Position
  • Faculty Member
Education
September 2001 - June 2006
Amirkabir University of Technology
Field of study
  • Polymer Eng.

Publications

Publications (63)
Article
Purpose This study aims to investigate the effect of trisodium nitrilotriacetic acid (NTA) on the physical and luminescence emission properties of NaLuF4:Yb, Tm Upconversion (UC) particles and compared with trisodium citrate (CA). Upconversion materials have been remarkably considered in many applications in the past decades. However, the morpholog...
Article
Full-text available
Upconversion materials are capable of emitting high-energy photons in the span of ultraviolet to NIR region of electromagnetic spectrum under excitation by low energy NIR photons through a process termed ‘upconversion fluorescence’. The NIR electromagnetic wave has deeper penetration, lower thermal effect, and lower toxicity compared with UV/vis la...
Article
The effects of molecular weight of PDMS on chemorheology and viscoelastic behavior of siloxane modified waterborne UV-curable polyurethane acrylate dispersions (Si-WUPAs) were assessed via a photo rheometer as a versatile tool for in situ observation of chemical and mechanical characteristics during photopolymerization reaction. The roles of PDMS s...
Article
Symmetric diketopyrrolopyrrole derivatives with N,N-diHexyl, N,N-diOctyl, N,N-diDecyl and N,N-diDodecyl alkyl chain were synthesized and characterized. The effects of alkyl chain length, which attached to the central core of diketopyrrolopyrrole were studied on physical properties of the synthesized dyes. Then, in addition to the effects of various...
Article
Silicone-based materials and systems have played a key role over a century. In this work, surface and bulk characteristics of siloxane-modified water-based urethane-acrylate dispersions containing hydrophilic and hydrophobic soft segments with variable molecular weight and also a hard segment were tailored. Feeding and synthesis conditions were cha...
Article
UV-curable composites always suffer from low conversion due to the low penetration depth of photons as a result of absorption of light by fillers. Herein, down-conversion particles were introduced as mineral materials within the composites to observe the alteration in final conversion along with some physical and mechanical properties. FT-IR, DMTA,...
Article
NaLuF4 doped Yb/Tm upconversion phosphor was synthesized by a facile hydrothermal method, using EDTA as a chelating agent. The influence of synthesis parameters was investigated on UV emission intensity through face-centered central composite design (CCD). Four parameters including F:RE ratio, pH value, reaction time and ethanol percent were consid...
Article
The novel fluorescent dyes based on diketopyrrolopyrrole materials were developed as a basic component for use in inkjet ink formulations. N-substituted DPP derivatives of ethyl formate and ethyl acetate (symmetric and asymmetric) were synthesized and characterized. Then, quantum chemical calculations were performed to investigate the observed chan...
Article
Upconversion (UC) microparticles were used as novel internal radiation sources for composite preparation. These particles emit Ultraviolet-Visible radiation when exposed to Near-infrared waves. This radiation causes uniform and deep polymerization. Two types of UC particles were prepared via a facile hydrothermal method, including NaLuF4: Yb 20%, T...
Article
Surface topography and phase-manipulated distribution of hybrid UV curable coatings is performed. Accordingly, phase separation is controlled by changing the inorganic/organic ratio and the photoinitiator content as these are the main thermodynamic and kinetic affecting factors, respectively. Chemical and mechanical evolution of the samples during...
Article
In the present study, a polyurethane acrylate (PUA) system cured via a thermal–UV (dual-cure process) was developed. The system selected for this work was a two-pack polyurethane acrylate with polyester polyol as the main component and urethane monoacrylate (UMA) as hardener. The polyester polyol was synthesized in a way to provide a final film coa...
Article
UV-curable systems based on polyethylene glycol diacrylate (PEG-DA) containing various amounts of scattering silicon nitride nanoparticles were studied by real-time Fourier transform infrared (RT FTIR) and real-time UV–visible (RT UV–visible) spectroscopies. Increasing the percentage of nanoparticles into the UV-curable systems caused the photopoly...
Article
Inventing a new light source for overcoming the disadvantages of conventional radiation curing technology is essential. Upconversion particles capable of emitting photon span from ultraviolet to NIR region of electromagnetic spectrum under excitation of NIR laser, could play the role of a light source within the formulation. Different amount of the...
Article
Full-text available
Inorganic silane oligomer based on tetraethoxysilane was synthesized via sol-gel under acidic condition. UV curable organic-inorganic hybrid coatings were then prepared using the synthesized inorganic oligomers and tetraethylene glycol diacrylate. The effect of organic/inorganic content ratio on gelation and shrinkage of samples was investigated by...
Chapter
Full-text available
This chapter covers the preparation and properties of ultraviolet (UV)-curable nanocomposite containing carbon nanotubes as fillers. UV-curing technology is of particular interest due to its unique properties such as rapid curing process and solvent-free formulation. Alongside with the advantages of utilizing this curing method, carbon nanotubes un...
Chapter
A quickly expanding process within the paint and coatings industry is the implementation of ultraviolet (UV) to cure or dry coating on various products (i.e., wood, metal, or plastic). Increasingly used in place of replacing conventional high-heat processing techniques, UV-cured coating produces materials with improved properties, lowers the operat...
Article
Recently, hybrid organic–inorganic nanocomposite UV-cured coatings have received considerable attention. Their attractiveness is due to improvements in various properties, including resistance to scratch, abrasion, heat, radiation as well as other mechanical and electrical properties, while maintaining their transparency and gloss. In this research...
Chapter
Full-text available
This chapter covers the preparation and properties of ultraviolet (UV)-curable nanocomposite containing carbon nanotubes as fillers. UV-curing technology is of particular interest due to its unique properties such as rapid curing process and solvent-free formulation. Alongside with the advantages of utilizing this curing method, carbon nanotubes un...
Chapter
Photopolymerization is a rapidly expanding technology because it offers several advantages. For instance, it is solvent-free and energy-efficient and can be used for heat-sensitive substances. Composites are materials consisting of two organic and inorganic compounds collecting the process ability of organic materials as well as hardness and ductil...
Article
Ultraviolet (UV) emissions of hydrothermally synthesized NaYF4: Yb3+, Tm3+ upconversion crystals were optimized using the response surface methodology experimental design. In these experimental designs, 9 runs, two factors namely (1) Tm3+ ion concentration, and (2) pH value were investigated using 3 different ligands. Introducing UV upconversion em...
Chapter
Full-text available
Abstract Photopolymerization is a rapidly expanding technology because it offers several advantages. For instance, it is solvent-free and energy-efficient and can be used for heat-sensitive substances. Composites are materials consisting of two organic and inorganic compounds collecting the process ability of organic materials as well as hardness...
Article
Full-text available
This study demonstrates the effect of some commonly used silane precursors on curing behavior and photopolymerization kinetics of UV-curable hybrid coatings. Tetraethoxyorthosilane (TEOS), vinyltrimethoxysilane (VTMS), and 3-methacryloxypropyltrimethoxysilane (MPS) were polymerized under acidic conditions by the sol–gel method. The resulting struct...
Article
The photopolymerization of pigmented coatings is a great challenge and hardly investigated in the literature. Therefore, in this work, the effect of photopolymerization temperature and light intensity on the curing behavior of a TiO2-pigmented UV curable epoxy acrylate system was investigated by using photo-differential scanning calorimetry (photo-...
Article
Full-text available
The photopolymerization of pigmented coatings is a great challenge and hardly investigated in the literature. Therefore, in this work, the effect of photopolymerization temperature and light intensity on the curing behavior of a TiO 2 -pigmented UV curable epoxy acrylate system was investigated by using photo-differential scanning calorim-etry (pho...
Article
Full-text available
Abstract Purpose – The purpose of this work was to study the effect of chemical structure of reactive diluents on the curing behaviour and physical– mechanical properties of a titanium dioxide pigmented UV-curable epoxy acrylate system. Design/methodology/approach – Two different tri-functional and two different tetra-functional acrylate monomers w...
Data
Full-text available
Purpose – The purpose of this work was to perform a systematic study on the effect of formulation on the physical and mechanical properties of ultaviolet (UV) curable urethane acrylate resins. In addition, the authors wanted to derive mathematical formula for the prediction of physical and mechanical properties for the aforementioned system. Desig...
Article
Polypropylene (PP) was modified utilizing two types of polyesteramide-based hyperbranched polymers (amphiphilic PS and hydrophilic PH). A maleicanhydride-modified PP (PM) was used as a reactive dispersing agent to enhance the modification by grafting the hyperbranched polymers onto the PP chains. Pure PP, two different non-reactively modified sampl...
Data
Purpose – The purpose of this work was to perform a systematic study on the effect of formulation on the physical and mechanical properties of ultaviolet (UV) curable urethane acrylate resins. In addition, the authors wanted to derive mathematical formula for the prediction of physical and mechanical properties for the aforementioned system. Design...
Article
Full-text available
Purpose – The purpose of this work was to perform a systematic study on the effect of formulation on the physical and mechanical properties of ultaviolet (UV) curable urethane acrylate resins. In addition, the authors wanted to derive mathematical formula for the prediction of physical and mechanical properties for the aforementioned system. Design...
Article
Full-text available
This study was done to assess the curing behavior of UV-curable coatings containing the multifunctional acrylate monomers, 1,6-hexanediol diacrylate (HDDA), trimethylolpropane triacrylate (TMPTA), and dipentaerythritol pentaacrylate (DiPEPA). Functionalized nanosilica was used for nano-based coating preparations. A microtome was used to cut each co...
Article
This work aims at investigating the dispersibility of a modified hydrophilic nanosilica using methacryloxy propyltrimethoxysilane (MPTMS) in an organic phase, which contains UV-curable urethane acrylate oligomers and monomers with different functionalities. Through a Taguchi design of experiment, the impacts of influencing parameters such as silane...
Article
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Article
Incorporation of fluorinated multiwalled carbon nanotubes (MWCNTs) into poly(dimethylsiloxane) (PDMS) was studied as an alternative method to improve the surface properties of the latter. The surface properties of PDMS matrixes filled with fluorinated MWCNTs were investigated and compared to those of pristine MWCNT/PDMS composites. Contact angle me...
Article
In this paper, the effects of structural and process variables on wear resistance of silicone rubber/carbon black coatings on 6061 aluminum alloy surfaces are studied. Testing parameters have been optimized for maximum wear resistance based on taguchi orthogonal design with six important parameters, viz. polydimethylsiloxane (PDMS) molecular weight...
Article
The synergistic effect of nano titanium dioxide (10 and 30 nm) and nano silver (10 nm) as antibacterial agents were investigated on UV curable clear coating. Antibacterial and physical–mechanical properties of coating were optimized using experimental design in response surface method. Twenty different samples of nano Ag and nano TiO2 were prepared...
Article
The characterisation of poly(dimethylsiloxane) (PDMS)-based fouling-release coatings filled with pristine and fluorinated multiwalled carbon nanotubes (MWCNTs) are reported. The fluorination of MWCNTs was performed via a three-step procedure, which consisted of oxidation in an acid mixture, reduction by diisobutylaluminium hydride and silanisation...
Article
Polypropylene (PP) is modified utilizing a poly(ester amide)-based hyperbranched polymer (PS). A maleic-modified PP is used to enhance the compatibility. Usual tensile experiments are carried out. The nanocrystalline structure is studied using small-angle X-ray scattering (SAXS) while a uniaxial mechanical load is simultaneously applied. SAXS patte...
Article
Fiber-graded poly(propylene) was modified by polyester-amide-based dendritic nanostructures with the aim of improving its dyeability. Two different dendritic polymers were used and the dendritic nanostructures were formed in situ via reactive blending with maleic anhydride-modified poly(propylene). Samples were chosen exploiting a 4-component mixtu...
Article
Full-text available
Black thermal control coatings based on carbon black are used widely in space technology. The thermal control coatings are exposed to electrostatic charges that develop on the external surface of the spacecraft. The charges would otherwise accumulate to cause arcing and possible damage. The carbon black pigment provides sufficient electrical conduc...
Article
To achieve a stable blend of a bisphenol A type epoxy resin and poly(dimethylsiloxane) (PDMS), reac-tion between hydroxyl (OH) groups of the epoxy and silanol groups of hydroxyl-terminated(HT) PDMS has been investi-gated. The chemical structures of the HTPDMS-modified epoxies were characterized by Fourier transform infrared (FTIR) and 1 H-and 13 C-...
Article
This work aims at studying the abrasion resistance of differently formulated organic–inorganic hybrid coatings prepared by sol–gel method. The organic phase contained UV curable urethane acrylate oligomers and monomers having different functionalities. The inorganic phase was composed of tetraethyl orthosilicate (TEOS) and 3-methacryloxy propyltrim...
Article
Epoxy-amine adduct was prepared by reaction between DGEBA and 1,1-iminodi-2-propanol. The kinetic of the reaction was investigated by differential scanning calorimetry (DSC) and a model-free approach. The epoxy-amine adducts were prepared with various molar ratios of amine functionalities. Waterborne dispersions of these resins have been prepared b...
Article
An epoxy acrylate resin was synthesized and the resin was used along with different multifunctional acrylate monomers, i.e. trimethylol propane triacrylate (TMPTA), tripropylene glycol diacrylate (TPGDA), 1,6-hexanedioldiacrylate (HDDA). The effect of the chemical structure of the monomers on some of the physical–mechanical properties of the resins...
Article
In this research, an epoxy acrylate resin was synthesized, and then the resin was used along with different multifunctional acrylate monomers and cured under UV radiation. To investigate the effect of nano-particles on some of the physical and mechanical properties, i.e. scratch, hardness and gloss, of the UV cured resins, a suspension of nano-alum...
Article
In spite of obvious advantages of radiation curable powder coatings some of their physical and mechanical properties such as impact resistance, flexibility, hardness and tensile strength are poorer than thermally curable powder coatings. It is believed that UV-curable powder coatings containing interpenetrating polymer networks (IPNs) inherently ha...
Article
The main purpose of this research is formulating and optimizing a new road-marking paint which is an environmentally friendly product. This paint is produced with an emulsion of an acrylic copolymer and contains the least of the volatile organic compounds. The formulation and optimization procedure is carried out on the base of experimental design...
Article
In this Paper, At first Pigment Red 3 was synthesized and then treated chemically. The treated pigment showed very good dispersibility and dispersion stability in aqueous media, surface chemistry and shape of the pigment were affected by chemical treatments. A Sulfonating agent was used to treat the pigment surface. The chemical reaction was taken...
Article
Full-text available
The effects of Atomic oxygen on various materials have been widely investigated in recent years by in-flight and laboratory simulation experiments. The interaction of atomic oxygen with materials may result in surface erosion, changes in chemical composition and surface morphology, changes in optical properties, and formation of particulate and mol...
Article
Full-text available
In this research, a lithography ink formulation based on the Maleic and Alkyd resin has been prepared and its rheological parameters such as viscosity vs. shear rate, thixotropy cycle, storage and loss modules and dynamic viscosity were studied. It was observed that viscosity values augmented severely by increasing the pigments concentration and re...

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